57results about How to "Reduce the loss of manpower and material resources" patented technology

The invention provides a fault location method, device and system for distribution lines. The method includes: using distribution line fault location devices FLD mounted on the distribution lines to collect fault recording data; locating the faulted lines from the distribution lines according to the fault recording data. By the fault location method, the problems that fault points need to be located by power staff section by section and line by line, and a large amount of manpower, resources and time needs to be consumed in the prior art are solved, fast location of the faulted lines is achieved, and manpower and resource loss is reduced.

The invention discloses a variable damping squeeze-film damper for aeroengine. The variable damping squeeze-film damper comprises an elastic support, a variable damping base, a hydraulic oil chamber,a hydraulic oil flow channel, a hydraulic adjusting screw and a squeeze film, wherein the hydraulic oil chamber is formed in the inner wall of the variable damping base, the hydraulic oil chamber is aflat gap with large space in both sides and small space in the middle after being axially split, and the wall thickness structure which is close to one side of the inner wall surface is in a shape ofa thin wall with thin both sides and a thick middle part. The gap variation range is from 0.2 c to 1 c (c is the thickness of the squeeze film), and the damping variation range of equipment can reach1 Cd to 5 Cd (Cd is a designed minimum damping value); the hydraulic oil chamber communicates with a threaded hole located in the axial end surface of the equipment by virtue of the flow channel, andthe hydraulic adjusting screw is assembled at the threaded hole; and the hydraulic adjusting screw is located above the axis position, the hydraulic oil chamber is circumferentially formed, an oil inlet of the squeeze film is formed in the interrupted position of the hydraulic oil chamber, and oil is supplied to the squeeze film in real time through the oil inlet of the squeeze film.

The invention discloses a fire monitoring alarm system based on internet of things. The system comprises a server and a plurality of monitoring devices connected with the server, wherein each monitoring device comprises a central processing unit (CPU), a wireless transmission module, a sensor and a sound-light alarm module; the sensor is used for detecting temperature, smog and harmful gas information of a 380V power input wire and transmitting the information to the CPU; the CPU is used for judging the received information and transmitting the judgment result to the server through the wireless transmission module; and if the received information contains alarm information, the alarm module transmits alarm information. By installing the monitoring alarm system, the quality and the efficiency of maintenance and management can be improved, and the aim of comprehensive monitoring is fulfilled; and the system has the characteristics of stable performance, low manufacturing cost, convenience in operation and the like.

The invention provides a combined rotation system assembly online dynamic balance detection system and method. The detection system comprises a dynamic balance analysis system, a data acquisition system, a detection sensor and a combined rotation system. A reflective marker is attached to a rotor. A rotation speed test sensor is installed on a non-rotating component, and is aligned to the reflective marker on the rotor. Vibration test sensors are mounted on respective bearing seats. The detection sensor is connected to the data acquisition system. The data acquisition system is connected to the dynamic balance analysis system. The detection method, by using a vector coordinate calculation method, performs dynamic balance detection on the combined rotation system, and configures a weight toeliminate the vibration caused by mutual response after the assembly of the rotor. The detection system and method can meet the requirements for convenient online dynamic balance operation, high accuracy and good balance effects, can be used for the balance of rotors in various industries such as machinery, aviation and electric power, contributes to the vibration reduction, the noise reduction and the wear reduction of the whole system, and prolongs the service life of a machine.

The invention provides a door and window point cloud shape detecting method and system based on laser point cloud data. The door and window point cloud shape detecting method based on the laser pointcloud data includes the steps of: pre-processing original point cloud data to obtain the point cloud data with gross errors removed and conducting edge extraction, determining the point cloud shape according to the result of edge extraction; projecting a 3D point cloud to 2D in the direction perpendicular to the plane of a door frame, dividing grids and extracting internal grids in the middle position, determining whether the number of points in the internal grids is greater than a preset corresponding threshold to know that the point cloud shape is a L shape if so and that the point cloud shape is another shape if not, splitting edge extraction results of the point cloud into four parts: up, down, left, and right, performing corresponding judgment fitting on the upper part and fitting theleft, right and bottom parts of the edge of the point cloud; fitting data and point cloud data to calculate fitting error point by point, calculating coefficient of determination, and extracting thefitting parameters of the coefficient of determination which meet the corresponding threshold. The door and window point cloud shape detecting method and system based on the laser point cloud data have the advantages of being simple, effective, high in precision, easy to implement and of important market value.

The invention discloses a power grid risk prevention and control system based on a cascading failure sequence. The power grid risk prevention and control system comprises a comprehensive importance unit, an accident severity unit and an accident risk assessment unit. The comprehensive importance unit is used for establishing the comprehensive importance factor of each element according to the structure importance factors and the state sensitivity factors of the elements in a power grid; the accident severity unit is used for carrying out processing according to the comprehensive importance factor, obtained by the comprehensive importance unit, of each element, the severity factor of the power grid running state and the severity factors of the load loss and then obtaining the comprehensive severity factor after a power grid accident. The accident risk assessment unit is used for conducting calculating according to the comprehensive severity factor to obtain the accident risk assessment factor. The power grid risk prevention and control system can completely represent the importance of different elements in the power grid and is close to the power grid practice, a risk assessment result is more reliable and more accurate, and therefore the extra manpower and material resource loss is reduced.

The invention relates to a semi-automatic shaft alignment mechanism. The semi-automatic shaft alignment mechanism comprises a first sample shaft and a second sample shaft. The first sample shaft is arranged on the left side of the second sample shaft. The first sample shaft is provided with a first support. The second sample shaft is provided with a second support. The first support and the secondsupport are movably connected through a ball screw. The left end of the first support is movably connected with an outer gear ring. The outer gear ring is evenly provided with insertion holes. The inner side of the first support and the inner side of the second support are both provided with bevel threaded disks. The inner sides of the bevel threaded disks are provided with wedge-shaped block tracks. The inner sides of the wedge-shaped block tracks are provided with wedge-shaped clamping blocks. The left end of the ball screw is movably connected with a ball screw transmission gear. The firstsupport and the second support are both provided with support connecting pins. The whole mechanism adopts a mechanical semi-automatic manner, the shaft alignment technology is improved, the shaft alignment difficulty is lowered, the alignment precision of two shafts needing to be aligned is improved, and the working efficiency of the shaft alignment process is improved.

The invention relates to an explosion-proof type coal mining machine motor electric control device which comprises a magnetic starter and further comprises a control transformer, a conversion controller and an isolating switch. The isolating switch is arranged on a main circuit of a coal mining machine motor and is connected with a three-phase power supply output from the secondary side of the magnetic starter, a primary side power supply of the control transformer is connected with the secondary side of the magnetic starter, a first secondary power supply circuit is connected with a remote control circuit, a second secondary side power supply circuit is connected with a left / right traction and lifting / descending control circuit of the coal mining machine motor, and a lead-out line of the magnetic starter is connected with a manual control circuit. The explosion-proof type coal mining machine motor electric control device adds the mechanical / electric locking function in an electric control circuit of an explosion-proof motor, improves the quality of the motor, prolongs the service life of the motor, avoids troubles caused by using misoperation underground a coal mine, guarantees personnel safety, reduces human and material resource loss and guarantees zero load of the isolating switch before operation from the mechanical aspect and the electric aspect.

The invention discloses a quick-release beam bottom template supporting frame. The quick-release beam bottom template supporting frame comprises steel pipe vertical rods, a steel pipe horizontal transverse rod, a U-shaped jack, a wood beam edge, a top template, a cushion block, a first connecting buckle and a second connecting buckle; the lower ends of the two steel pipe vertical rods are fixed to the cushion block; the upper ends of the two steel pipe vertical rods are connected with the U-shaped jack in an inserted mode; the wood beam edge is arranged on the U-shaped jack, and the top template is arranged on the wood beam edge. The invention further discloses a working method of the quick-release beam bottom template supporting frame. The beam bearing span and the corresponding structural force are effectively decreased, and the full supporting frame body and the corresponding template can be disassembled in advance; the frame body turnover efficiency is improved, material input is reduced, and the time limit for a project is shortened; the quick-release beam bottom template supporting frame can be applied to template supporting systems of the majority of concrete structural engineering.

The embodiment of the invention provides a fire early warning system based on an articulated naturality web. The system is applied to the articulated naturality web which comprises a communication server; the system comprises a thermal imager 5, an articulated naturality web terminal, a management client side and a monitoring terminal; the thermal imager is used for collecting thermal imaging video streaming of a designated area, and the thermal imaging video streaming comprises a plurality of video frames; the articulated naturality web terminal is used for decoding the multiple video framesin the thermal imaging video streaming to obtain corresponding thermal imaging pictures, and obtaining temperature values corresponding to pixel blocks one to one according to the pixel blocks in allthe thermal imaging pictures; when the N first temperature values closest to the current time are in the preset first temperature interval, first early warning information is generated; and the firstearly warning information is sent to the management client side through the communication server, and thus the management client side acquires field video streaming, shot by the monitoring terminal, of the designated area.

The invention provides a smart city monitoring system. The smart city monitoring system comprises a plurality of video acquisition systems distributed in different areas of a city and a smart city public platform, wherein each video acquisition system comprises a plurality of cameras and an embedded hard disk VCR DVR connected with the cameras, the smart city public platform comprises a managementsystem and a monitoring system, the embedded DVR DVRs are connected with the management system through network dedicated line respectively, and the management system is connected with the monitoringsystem. The smart city monitoring system can open up isolated islands of information, reduce information barriers and realize unified monitoring, unified management and unified allocation. The smart city public platform plays back and intelligently analyzes videos, and once a problem occurs, special personnel can be timely assigned to the place for processing. By sufficiently utilizing city resources, coordinated operation is realized and the loss of manpower and material resources is reduced.

The invention relates to an equipment state evaluation method and system and a storage medium, and the method comprises the steps: a monitoring terminal monitors the state quantity of power distribution network equipment, and transmits the monitoring data to a communication base station; the communication base station transmits the monitoring data to a monitoring layer; the monitoring layer records a time label corresponding to the monitoring data and reads off-line data corresponding to the time label in an off-line test database; the monitoring layer calculates a performance index of the monitoring terminal according to the offline data and the monitoring data, determines the state of the monitoring terminal according to the performance index, and realizes self-checking of the performance of the monitoring terminal; the state of the monitoring terminal is evaluated through self-checking, an effective basis is provided for evaluation of the power distribution network monitoring terminal, and the problem of monitoring distortion caused by unqualified performance or self-degradation of the monitoring terminal at present is solved.

The invention discloses an insulator evaluation and classification method and device based on infrared images. The method comprises the steps of acquiring an insulator infrared spectrum sample library; cutting the obtained images of the insulator infrared spectrum sample library to obtain a normal insulator library as a positive sample and a deteriorated insulator library as a negative sample; graying the images in the positive sample and the negative sample; processing the image after graying processing by using a principal component analysis method; and training the image processed by the principal component analysis method and the characteristics of the insulator state by adopting a Bayesian algorithm to obtain a corresponding relationship between characteristic parameters and the insulator state and model prediction parameters, thereby realizing classification and identification of the insulator. According to the technical scheme of the invention, the method can adapt to a complexfield environment, achieves the automatic recognition and diagnosis of the insulator in the infrared image, effectively reduces the false detection, and improves the efficiency and accuracy.

The invention discloses a national power grid tree line discharge prediction method, relates to the field of machine learning, and is used for carrying out tree line discharge risk prediction on a power tower pole, a power transmission line and a power transmission channel of a state grid. The method comprises the following steps: collecting historical information, forming complete historical data, carrying out resampling on the complete historical data, training a LightGBM model, collecting current information, and forming complete current data; and performing tree line discharge risk prediction by using the trained LightGBM model. The method provided by the invention can predict the probability and the risk level of the tree line discharge risk of the power tower pole and the power transmission line, and deploy corresponding measures in advance.

The invention discloses a reasonable and efficient planting method for wheat stubble sesame. The planting method guarantees the full stand of rush planting of sesame after wheat harvesting when the soil is damp, is simple and efficient, saves labor and time, is beneficial for later-period sesame growth and development, yield formation and field management and solves the problems that the conflict between rush harvesting and rush planting exists all the time and because high wheat stubble is left in land after wheat harvesting, next-stubble crops can not be cultivated easily. According to the concrete scheme, the wheat stubble is kept at the original position after wheat harvesting, damage to the granular structure of the land and loss of the soil moisture content due to high-intensity mechanized cultivation are reduced, wheat straw is cleared out, and grain husks are left in the land; a rotary cultivator carries out rotary cultivation and soil aeration between wheat stubble lines; base fertilizer is sufficiently applied in the fertilization mode of combining quick-acting fertilizer and controlled-release fertilizer, sesame seeds are sown in line, the seeds to be sown are treated with insecticide like carbendazim, and a herbicide is sprayed after sowing to close weeds. Inter-cultivation is not needed in the whole cultivation process, so that labor is saved, the sesame yield and the fertilizer utilization ratio are increased, and the planting method is worthy of application and popularization.

The invention provides a rake-toothed biomass material conveying device. The rake-toothed biomass material conveying device comprises a first traction chain, a second traction chain, rake teeth, a driving shaft, a transmission shaft, an intermediate separator, a lower bottom plate, a feed opening and a spiral tensioning device; the driving shaft and the transmission shaft are arranged symmetrically; the spiral tensioning device is connected with the driving shaft to control the tensioning force of the first traction chain and / or the second traction chain; the first traction chain is respectively meshed with the driving shaft and the transmission shaft; the second traction chain and the first traction chain are arranged symmetrically, and the second traction chain is respectively meshed with the driving shaft and the transmission shaft, so that the driving shaft is enabled to drive the first traction chain and the second traction chain to carry out chain-type transmission around the transmission shaft. With the rake-toothed biomass material conveying device, the problems of large floor space, large labor consumption and large material consumption in the construction of a belt conveyer are solved, and the problems of poor conveying performance and low efficiency of the belt conveyer are also solved.

The invention discloses an automatic vehicle-mounted steel pipe unloading device and belongs to the field of engineering automotive supplies. The automatic vehicle-mounted steel pipe unloading deviceis formed by a rotary table, a mechanical arm, a rotary arm, a hydraulic cylinder, a steering gear and a steel pipe wrench; the rotary table is provided with a disc and a connecting rib in structure,a pneumatic cylinder comprises an upper pneumatic cylinder body and a lower pneumatic cylinder body, the mechanical arm is made of square cast iron curving by 150 degrees, the steering gear is provided with a telescopic shaft, a guiding rod and an electrictimer, and the steel pipe wrench is provided with a large steel pipe wrench body and a small steel pipe wrench body in structure. By the arrangement, great difficulty brought by manual unloading of steel pipes especially large-scale steel pipes can be overcome, damage caused by careless unloading is avoided, injury and personnel safety of unloading workers can be avoided, lots of manpower and material loss is saved, and the efficiency in unloading the steel pipes is improved.

The invention discloses a shielding box for vacuum coating, which comprises a housing (1) and a plurality of shielding sheets (2). The shielding box is characterized in that the plurality of independently arranged shielding sheets (2) are arranged in the housing (1); the shielding sheets (2) are arranged in parallel; each shielding sheet (2) is provided with a plurality of through holes (3).Since the shielding box is provided with the independent shielding sheets and each shielding sheet is provided with the through holes, the shielding box can effectively adsorb the metal layer in the repeated coating or long-time coating process, and the metal residues can not fall to the coated workpiece, thereby reducing the coating defects of the coated workpiece, and achieving the goal of improving the optical and mechanical properties of the coated film layer. The independent shielding sheets can be easily extracted and separated and independently cleaned, thereby effectively reducing the unnecessary loss of human resources and material resources. The shielding box has the characteristics of simple structure and high adsorption efficiency, and is convenient to use; the shielding box can be independently or combinedly installed in a proper position near the coating source in the coating chamber.

The invention discloses a water-stop sealing gasket capable of being melted and injected with glue for multiple times, a duct piece, a duct piece ring and a construction method. The sealing gasket capable of being injected with glue comprises a rubber main body, wherein a glue injection hole channel is formed in the rubber main body, a hot melting coil is arranged in the glue injection hole channel, reserved hole channels capable of ensuring that the rubber main body is compressible are reserved in the two sides of the glue injection hole channel, and an expansion water absorption layer is arranged on an outer ring of the rubber main body; and the rubber main body is also provided with a glue outlet hole communicated with the glue injection hole channel. The water-stop sealing gasket capable of being injected with glue is arranged on an inner layer of an annular and longitudinal joint surface of a segment, and a common sealing gasket is normally arranged on an outer layer of the jointsurface. After a segment tunnel operates, if water leakage occurs due to the fact that the water stopping performance of the outer-layer sealing gasket is reduced, an inner-layer sealing gasket glue injection and water stopping program is started. High-temperature water stop glue is injected into a sealing gasket channel and seeps outwards along the glue outlet hole, and when the temperature is reduced to 45 DEG C or below, the liquid glue becomes solid rubber, and the water stop effect is achieved.

The invention discloses a switch cabinet closing lockout circuit. The circuit comprises a handcart working position auxiliary contact normally-closed junction S9, a handcart testing position auxiliarycontact normally-closed junction S8, a closing lockout electromagnet Y1, a closing lockout electromagnet auxiliary contact normally-closed junction S2 and a closing release Y3, wherein the handcart working position auxiliary contact normally-closed junction S9 is connected with the handcart testing position auxiliary contact normally-closed junction S8 in series and then is connected with the closing lockout electromagnet Y1 through a rectifying element V1, the closing lockout electromagnet Y1 controls opening and closing of the closing lockout electromagnet auxiliary contact normally-closedjunction S2, and the closing lockout electromagnet auxiliary contact normally-closed junction S2 is connected with the closing release Y3 in series. A normally-closed junction of a Y1 relay is connected with a closing circuit in series; in the handcart hand-cranking process, the relay is electrified, and the closing circuit is switched off; and when the handcart is at a working position or a testing position, the relay is not electrified, and the circuit is switched on.

The invention discloses a state grid mechanical external damage prediction method, and relates to the field of machine learning, the method is used for carrying out mechanical external damage risk prediction on a power tower pole, a power transmission line and a power transmission channel of a state grid. The method comprises the following steps: acquiring historical information, forming completehistorical data, resampling the complete historical data, training a Catboost model, acquiring current information, forming complete current data, and performing mechanical external damage risk prediction by using the trained Catboost model. The method provided by the invention can predict the probability and risk level of mechanical external damage risks of the power tower pole, the power transmission line and the power transmission channel, and deploy countermeasures in advance.

Disclosed is a gyroscope anti-seismic building. A gyroscope and a constant velocity universal joint are installed in a building, an electricity generator is installed in a foundation, universal wheelsand a fixing plate are installed below the building, magnetic suspension force is achieved, when an earthquake happens and the fixing plate is compressed extremely by seismic force, the fixing plateis instantly folded, the building is suspended by magnetic suspension force and makes no contact with the ground, the anti-seismic building moves in two modes including the plane direction sliding mode and the pot-type left-right swinging mode, and according to the plane direction sliding mode, the universal wheels or the magnetic suspension force is used for supporting the whole building upwards;according to the pot-type left-right swinging mode, the building can swing left and right; by means of the magnetic suspension principle, when the earthquake happens, the whole building is suspended,the manpower and material resource loss is lowered, and the great reference value is achieved for the engineering design.

The invention belongs to the technical field of graphene foam boards, and particularly relates to a large-size graphene foam board. The large-size graphene foam board comprises foam board bodies, andevery two adjacent foam board bodies are connected through a connecting part; each connecting part comprises clamping plates, two push plates which are arranged up and down are arranged between everytwo adjacent clamping plates, and a spring is fixedly connected between the two push plates; first sealing grooves and first inserting grooves are formed in the upper and lower ends of each clamping plate on the left side; a first sealing plate is connected into each first sealing groove in a sliding manner; second sealing grooves and second inserting grooves are formed in the upper and lower endsof each clamping plate on the right side; a second sealing plate is connected into the second sealing groove in a sliding manner; and the large-size graphene foam board has the characteristics that transportation is convenient, loading and unloading are fast, time and labor are saved, resources are effectively saved in the transportation process, the fixing strength between the foam boards is effectively improved, the transportation safety is high, and the foam boards have the characteristics of being low in mass, high in strength and the like.

The invention discloses a water-tight gasket capable of multiple melting and injection of glue, a segment, a segment ring and a construction method. The gasket that can be injected with glue includes a rubber main body, and a channel for injecting glue is arranged in the rubber main body. A hot-melt coil is provided inside the injection channel, and reserved channels are reserved on both sides of the injection channel to ensure that the rubber body can be compressed, and an expansion water-absorbing layer is arranged on the outer ring of the rubber body; There is a glue outlet connected with the glue injection channel. The glue-injectable water-tight sealing gasket is set on the inner layer of the circumferential and longitudinal joint surfaces of the segment, and the ordinary sealing gasket is normally installed on the outer layer of the joint surface. After the segment tunnel is in operation, if there is water leakage due to the decline in the water-stop performance of the outer gasket, start the glue injection water-stop procedure for the inner gasket. The high-temperature water-stopping glue is injected into the gasket channel and seeps outward along the glue outlet hole. When the temperature drops below 45°C, the liquid glue becomes solid rubber and exerts the water-stopping effect.

The invention relates to a production process of a weft-knitted wool-like fabric, which is characterized by comprising the following steps of: selection of the fabric, selection of the model, weavingprocess and post-processing; wherein the fabric is made of 20D-100D polyester DTY, 20D-40D superfine polyester fiber DTY and 20-D-70D spandex, and the 40D-100D polyester DTY is used to make veils, and 20D-40D superfine polyester fiber DTY is used for the bottom yarn and a 20-D-70D spandex for the lining yarn; The machine adopts 28-36-pin 34-inch 104-way open-width large circular machine for weaving; the needle-arranging mode adopts two needle, one circulation and one triangle arrangement, four-way per cycle weaving process ; The advantages are as follows:the production processing flow is short, the human and material consumption is small, the color fastness of the fabric after the pile is started is easy to control, and the quality is guaranteed.

The invention discloses a multi-lane automatic unloading control device and control method for a large crusher. The control device comprises the crusher and an automatic control system, wherein a material pouring opening is formed in the upper portion of the crusher, and a discharging opening is formed in the lower portion of the crusher; a plurality of lanes connected with the material pouring opening are arranged at the material pouring opening. The discharging opening is connected with a conveying device; the automatic control system comprises a controller and a detector; the controller is electrically connected with the detector; the detector comprises a material level detection module used for detecting the material level and a vehicle detection module used for recognizing vehicles; the material level detection module is installed at the top of the inner side of the crusher; the vehicle detection module is installed on one side of the lanes; and a prompt module used for indicating vehicle unloading is arranged on one side of the lanes and electrically connected with the controller. According to the control device, the unloading fairness is improved, the problems that due to manual dispatching, vehicle unloading is disordered, and material flow is not stable are avoided, and a guarantee is provided for subsequent long-distance conveying belt safe operation; and meanwhile, the production cost is reduced to a great degree, and the production efficiency is improved.

The invention provides a device and a method for actively promoting landslide collapse. The method comprises the steps that a loosening agent is sprayed to a to-be-slide mass to loosen the soil texture of the mass, hinges provided with self-expansion bag bodies are placed at the positions of slide blocking keys, and extensible double-layer floral tubes are arranged in the horizontal direction of alandslide belt; each bag body is of a double-layer structure, wherein an expanding agent or gas is placed in the inner layer, and the outer layer is filled with lubricating substances; and repeated expansion is conducted, so that a gap is generated between the to-be-landslide mass and a landslide bed, the pressure in the bag bodies is increased, and the lubricating substances enter the landslidebelt. Meanwhile, magnetic fluid mixed with the lubricating substances is arranged at the position of a backup pull fracture belt, the magnetic fluid is guided in a graded mode to be fully distributedon the landslide belt, and the landslide mass is promoted to slide away from the landslide bed through the combined effect. The problems that manpower and material resources are wasted, and normal operation of traffic transportation and construction operation is affected due to long-term monitoring of the to-be-landslide mass are solved. The device and the method have the advantages that feasibility is high, manpower and material resources are saved, and personnel injuries are reduced.

The invention relates to a heat dissipation system and engineering mechanical equipment. The heat dissipation system involves a controller, a heat dissipation device, an air driving piece and a powerdevice, wherein the air driving piece is oppositely arranged on one side of the heat dissipation device; and the power device is in driving connection with the air driving piece, the power device is further electrically connected with the controller, and the power device is used for driving the air driving piece to be switched between forward rotation and reverse rotation. When dust is accumulatedto a certain thickness, the heat dissipation capability of the heat dissipation device is certainly influenced, at the moment, the controller can drive the power device to be switched to reverse rotation, that is, the air driving piece can be driven to reversely rotate, and the air driving piece is changed from blowing air to the heat dissipation device to sucking the air so that the covering dust can be separated from the surface of the heat dissipation device under the attraction action of the air, and the cleaning purpose is achieved; and manpower and material resource losses can be reduced, enterprise cost expenditure is reduced, meanwhile, continuous work of the engineering mechanical equipment can be guaranteed, and the work efficiency is further improved.

The application provides a rake tooth type biomass material conveying device, including: a first traction chain, a second traction chain, a rake tooth, a drive shaft, a transmission shaft, an intermediate partition, a lower bottom plate, a feeding port and a spiral tensioning device; the driving shaft and the transmission shaft are arranged symmetrically; the helical tensioning device is connected with the driving shaft to control the tension of the first traction chain and / or the second traction chain; the The first traction chain is respectively engaged with the drive shaft and the transmission shaft; the second traction chain is arranged symmetrically with the first traction chain, and the second traction chain is respectively connected with the drive shaft and the transmission shaft. The transmission shaft is meshed; so that the drive shaft drives the first traction chain and the second traction chain to perform chain transmission around the transmission shaft. The application solves the problems that the belt conveyor occupies a large area and consumes a lot of manpower and material resources; and the belt conveyor has poor conveying capacity and low efficiency during construction.