105results about How to "Increase range" patented technology

The invention belongs to the technical field of atomizing water spraying, and discloses atomizing water spraying equipment for municipal construction, which comprises a base, a water tank is fixedly connected to one side of the upper surface of the base, a fixing frame is fixedly connected to the upper surface of the base, and a water pump located on one side of the fixing frame is fixedly connected to the upper surface of the base. A movable plate movably sleeves the inner side of the bottom of the fixed frame, a hydraulic oil pump movably sleeves the outer circular surface of the convex part of the movable plate, a shell movably sleeves the middle part of an output shaft of the hydraulic oil pump, and two rotating rods movably sleeve the inner side of the convex part of the upper part of the fixed frame. By means of the design of the pressurizing mechanism, airflow generated by the fan blades is enhanced, by optimizing the airflow path and reducing energy loss, the effect of obtaining larger wind power under the same power can be achieved, energy is saved, the operation cost is reduced, water mist can be conveyed to a farther distance through the stronger wind power, the water mist can be atomized more sufficiently, and the water mist atomization effect is improved. Therefore, the dust falling efficiency is improved.

The invention discloses a hemispherical resonator gyroscope initial alignment and navigation method based on dual-mode switching, and belongs to the field of hemispherical resonator gyroscope control. According to the invention, the problem that the single working mode of the hemispherical resonator gyroscope is difficult to meet different requirements in the initial alignment and navigation process is solved. According to the method disclosed by the invention, the precision of the hemispherical resonator gyroscope in an initial alignment stage can be improved compared with a single full-angle mode, and meanwhile, the range of the hemispherical resonator gyroscope in a navigation stage can be improved compared with a single force balance mode. The advantages of the two modes can be combined, different requirements for the precision and the measuring range of the hemispherical resonator gyroscope in different stages can be met by switching the two control modes, and the problem that the single working mode of the hemispherical resonator gyroscope is difficult to meet different requirements in the initial alignment and navigation process is solved. The method can be applied to mode switching of the hemispherical resonator gyroscope.

The invention discloses a coaxial reverse rotation fog gun fan in the technical field of environmental protection equipment. The coaxial reverse rotation fog gun fan comprises a forward rotation impeller, a reverse rotation impeller, a motor, a transmission mechanism and a connecting support. The forward rotation impeller and the reverse rotation impeller are coaxially arranged, the motor is used for driving the transmission mechanism, and the transmission mechanism and the transmission mechanism are installed in the barrel through the connecting support. According to the fog gun fan, gear meshing and synchronous belt wheel transmission modes are adopted, so that the forward-rotating impeller and the reverse-rotating impeller rotate on the same axis at a high speed, secondary energy loss caused by vortex of airflow and impact on a flow guide plate is avoided, and compared with a fog gun fan with two stages of impellers in the same rotating direction, the fog gun fan has the advantages that the structure is simple; under the same rotating speed, the fog gun fan with the coaxial shaft counter-rotating impeller structure is stronger in outlet airflow and high in efficiency, the noise generated by the airflow is reduced, the air volume and the air pressure are improved, and the range of a fog gun is increased.

The utility model discloses a multichannel pipettor which comprises a handle base body, a pipette head and a suction head, a multichannel and a multichannel piston rod synchronous execution connecting rod are arranged in the pipette head, piston cylinder assemblies are respectively installed in the multichannel, and a buffer and a pipette withdrawing push plate are further arranged in the pipette head. The buffer and the gun retreating push plate are arranged to achieve self-adaptive suction head installation and automatic gun retreating, the spring guide rod, the compression spring and the piston cylinder in the buffer are not concentric, the buffer enables the piston cylinder to have an independent buffering function, the installation space of a multi-channel inner piston cylinder assembly is not occupied, the inner space of the gun head is fully and compactly utilized, and the service life of the gun head is prolonged. The range is increased; the automatic gun withdrawing device is provided with the gun withdrawing push plate with a sectional gun withdrawing function, the suction head is pushed out in a sectional mode, automatic gun withdrawing is completed, and the automatic gun withdrawing device is suitable for automatic gun withdrawing of the suction head of the wide-range multi-channel pipettor; the runway-shaped piston cylinder, the piston and the sealing ring are arranged, so that the measuring range of the multi-channel pipettor is greatly increased under the condition that the axial length is not increased.

The utility model relates to an unmanned aerial vehicle air-drop simulation training bomb, which comprises a touch switch, a fuse, a warhead and an empennage, and is characterized in that the warhead is filled with explosives; the touch switch is fixedly arranged at one end of the fuze, the end, away from the touch switch, of the fuze is fixedly connected with the warhead, and the end, away from the fuze, of the warhead is fixedly connected with the empennage; the touch switch is coupled with a time delay circuit for delaying the trigger fuze; the fuse is provided with an electric detonator interface, and the electric detonator interface is coupled with the time delay circuit. According to the invention, trainees can better master the specific time efficiency of unmanned aerial vehicle air-drop ammunition percussion detonation in training, and the training effect is improved.

The invention provides a flexible conductive composite material and a preparation method and application thereof, and belongs to the technical field of high polymer materials, and the preparation method comprises the following steps: mixing graphene, carbon nanotubes and a polar organic solvent to obtain a nano carbon material dispersion liquid; mixing raw silicone rubber, a silane coupling agent and the nano carbon material dispersion liquid, and carrying out surface modification treatment to obtain a nano carbon modified raw rubber mixed liquid; and mixing the nanocarbon modified raw rubber mixed solution with a cross-linking agent, and carrying out a cross-linking reaction to obtain the flexible conductive composite material. The prepared flexible conductive composite material has a low seepage threshold value and high mechanical performance, and after the flexible conductive composite material serves as a sensing layer of the flexible piezoresistive sensor, the flexible piezoresistive sensor can have a large measuring range and high sensitivity and repeated loading capacity.

The invention provides a solid rocket engine grain embedded with metal wires and application of the solid rocket engine grain. The solid rocket engine grain embedded with the metal wires is a grain body with a cylindrical structure; wherein the grain body contains a burning speed reducing agent, and a metal wire is further embedded between the grain bodies. The grain is divided into layers with different combustion speeds by adding different metal wires and the combustion speed reducing agent, the purposes of setting the combustion speed and thrust of each layer and adjusting the interval time are achieved, and the range, maneuverability, interception capability and combat capability of a missile can be improved by managing the energy of the propellant.

The invention discloses a three-phase line current wide-range measuring device and method based on TMR. The measuring device comprises a TMR mutual inductor array and a data processing unit module. The mutual inductor array is composed of M rows and three columns of TMR mutual inductors, each column of mutual inductors is correspondingly arranged vertically below the three-phase line, and the measuring ranges of the mutual inductors in each row are different; the data processing unit module calculates the three-phase line current under the corresponding measuring range according to the data acquired by each row of mutual inductors; selecting a row of mutual inductors which do not exceed the range at the current moment and have the minimum error, and taking the correspondingly obtained three-phase line current as the initial constant current; and selecting a row of mutual inductors which currently exceed the measuring range and have the maximum measuring range, and correcting the initial constant current by using the predicted current calculated by the mutual inductors to obtain the final current of the three-phase line at the current moment. According to the invention, high-precision measurement of three-phase line current is maintained while the measuring range is greatly increased, and the problem of data abrupt change possibly occurring during switching of different measuring ranges at present is solved.

The invention discloses a stern room gas vane transmission system and a control method thereof, and relates to the technical field of aircraft flight, and the gas vane transmission system comprises an air vane and a gas vane which are arranged on a cabin section shell; an air rudder shaft of the air rudder penetrates through one end of the cabin section shell and is connected with a driving end of the steering engine; the air rudder is in transmission connection with the gas rudder through a transmission assembly; the gas vane is connected with the bottom of the cabin section shell through at least two separation pieces; the separating part has a first working state and a second working state; in the first working state, the separation piece keeps the connection between the gas vane and the cabin section shell; and in the second working state, the separation piece cuts off the connection between the gas vane and the cabin section shell, so that the gas vane is separated from the cabin section shell. The system can abandon the unnecessary weight of the gas vane for the aircraft after the solid engine of the aircraft finishes working, so that the range or other flight indexes of the aircraft are improved.

The invention discloses a multi-ball neutron spectrometer applied to pulsed neutron radiation field monitoring. The multi-ball neutron spectrometer comprises a 3He gas detector, a 4H-SiC semiconductor detector, a neutron moderation ball, a preamplifier, a spectrometer main amplifier, a high-voltage power supply and a multichannel analyzer. A 3He gas detector and a 4H-SiC semiconductor detector are designed in a neutron moderator of a set of multi-sphere neutron spectrometer, the double-detector multi-sphere neutron spectrometer is applied in pulsed neutron radiation fields, and neutron energy spectrum and dose measurement is carried out in the pulsed neutron radiation fields with the neutron flux of 101-104 n.cm <-2 > s <-1 > and the neutron flux of 103-106 n.cm <-2 > s <-1 > respectively. According to the invention, a dual-detector multi-ball neutron spectrometer data acquisition system based on a 3He gas detector and a 4H-SiC semiconductor detector is utilized to realize measurement of neutron energy spectrum distribution information and neutron dose in a wide energy region.

The utility model discloses an optical power acquisition range automatic switching circuit, and belongs to the technical field of amplification circuits. An automatic switching circuit for optical power acquisition ranges comprises a photoelectric sensor PD1, a current-voltage conversion amplification circuit, a secondary amplification circuit, a comparison circuit and a voltage selector U4. The output voltage of the current-voltage conversion amplification circuit is divided into two paths, one path is connected to an NC1 pin of the voltage selector U4, and the other path is used as the input of the secondary amplification circuit; the output voltage of the secondary amplification circuit is divided into two paths, one path is connected to a NO1 pin of the voltage selector U4, and the other path is used as the input of the comparison circuit; the comparison circuit is used for comparing the output voltage of the secondary amplification circuit with a preset reference voltage, and the output voltage of the comparison circuit is used as the input of an I O pin of the voltage selector U4; and the voltage selector U4 selects to connect the COM end with the NC1 or NO1 channel according to the input of the I O pin, so that automatic switching of the optical power detection range is realized, and the optical power detection range is improved.

The invention discloses a laser ranging method, circuit, device, storage medium and product, and relates to the technical field of laser ranging, the disclosed laser ranging method comprises the following steps: during laser ranging, emitting laser to a to-be-measured target; when the laser arrives at the to-be-measured target and returns, receiving return laser in contact with the to-be-measured target; processing the plurality of return lasers to obtain a target echo signal and echo time; and according to the plurality of target echo signals and the echo time, obtaining a target distance between a laser emission position and the to-be-measured target position. According to the invention, the obtained echo signals are processed, superposed and then combined with the echo time for calculation to obtain the target distance, compared with the prior art, the target distance measured by reinforcing the ultra-far weak target echo signals is more exquisite, and the measurement range is greatly improved.

The present invention discloses a three-phase line current wide range measurement device and method based on TMR, the measurement device includes a TMR mutual inductor array and a data processing unit module; the mutual inductor array is composed of M rows and 3 columns of TMR mutual inductors, and each column of mutual inductors is correspondingly arranged vertically below the three-phase line, and each row of mutual inductors has a different range; the data processing unit module calculates the three-phase line current under the corresponding range according to the data collected by each row of mutual inductors; selects a row of mutual inductors that is not over-range and has the smallest error at the current moment, and obtains the corresponding three-phase line current as the initial current; selects a row of mutual inductors that is currently over-range and has the largest range, and uses the predicted current calculated by the current to correct the initial current, and obtains the final current of the three-phase line at the current moment. The present invention maintains high-precision measurement of the three-phase line current while greatly improving the range, and solves the problem of data mutation that may occur when switching between different ranges.

Provided is a redox flow battery capable of eliminating reductions in charge and discharge efficiencies and a reduction in capacity due to a shift of potential balance between a first electrode and a second electrode even if a power storage rate range is extended. This redox flow battery comprises: at least one cell in which a first chamber in which a first electrode serving as an anode during charging is installed and a second chamber in which a second electrode serving as a cathode during charging is installed are divided by a membrane; a first tank that stores a first electrolyte; a first circulation device including a first supply path that connects the first tank and the first chamber, and a first recovery path that connects the first chamber and the first tank; a second tank that stores a second electrolyte; a second circulation device including a second supply path that connects the second tank and the second chamber, and a second recovery path that connects the second chamber and the second tank; and an adjustment path that is provided so as to supply gas included in the first tank or the first recovery path to the second recovery path.

The invention discloses a variable flow rate spraying device, comprising a nozzle and a flow guide tube, wherein the flow guide tube comprises an inner flow guide tube and an outer flow guide tube, the inner flow guide tube is arranged in the outer flow guide tube, a plurality of semicircular spray ports are arranged in the circumferential direction of the front end of the nozzle, the spray ports obliquely penetrate the nozzle and form an oblique groove in the nozzle, a flow regulating device comprises a push rod bin, a push rod and a piston, the push rod bin is fixed at the right end of the interior of the flow guide tube, one end of the push rod is connected to the push rod bin, and the other end is connected to the piston, the piston comprises a front section piston and a rear section piston which are fixedly connected, the outer cylindrical surface of the front section piston is combined with the oblique groove to form a water flow channel, the rear section piston is fitted with the inner wall of the flow guide tube, and a piston oblique surface is formed at the connection between the front section piston and the rear section piston; the invention can flexibly adjust the cross-sectional area of ​​the water flow channel by using a special nozzle and a piston in combination, thereby adjusting the spray flow rate and spray distance of water.

This invention discloses a high-pressure ejector spraying device and method for azeotropic working fluids driven by engine waste heat. The device includes: an internal combustion engine with an internal exhaust pipe; a working fluid heating mechanism located in the waste heat area of ​​the internal combustion engine, utilizing the waste heat from the exhaust pipe; and a high-pressure ejector mechanism whose outlet is connected to the outlet of the working fluid heating mechanism to eject the generated azeotropic mixture high-pressure steam. The central shaft of the blower body within the high-pressure ejector mechanism is connected to the drive shaft of the internal combustion engine to increase the blower body's rotational speed. This device overcomes the problems of complex independent burner structures, high failure rates of ignition and fuel supply systems, and susceptibility to flameout, backfire, and carbon buildup in traditional fogging equipment, resulting in poor operational stability. Furthermore, the burner continuously consumes gasoline, leading to high energy consumption and operating costs.

The utility model provides an efficient SNCR (selective non-catalytic reduction) denitration spray gun which comprises a gun body, one end of the gun body is connected with a gun barrel through a mounting seat, the gun body and the gun barrel are mounted in a furnace wall, and a damping structure is arranged on the surface of the gun barrel and used for buffering vibration between the furnace wall and the spray gun. The top of the gun body is provided with a first spray head communicated with an inner cavity of the gun body, the top of the first spray head is covered with a second spray head, one side of the gun body is communicated with an air inlet pipe and a liquid inlet pipe, one end of the air inlet pipe is communicated with compressed air, and one end of the liquid inlet pipe is communicated with liquid ammonia. By arranging the first spray head and the second spray head, liquid ammonia is atomized by the first spray head, and the atomized liquid ammonia is converged through the second spray head, enters the front spray hole of the second spray head and then is sprayed forwards, so that the spraying range of the liquid ammonia is increased, the liquid ammonia is sprayed into a reaction center, the reaction area of the liquid ammonia is increased, and the spraying range of the liquid ammonia is farther; and the SNCR denitration reaction efficiency is improved.

The invention belongs to the technical field of pressure measurement, and provides a multi-path steady-state pressure measurement system and method in a rotating state, and the system comprises a rotating measurement subsystem, a static measurement subsystem, and a dynamic-static conversion subsystem. The rotary measurement subsystem comprises four experiment piece pressure measurement joints and four electromagnetic valves; the static measurement subsystem comprises an equipment pipeline gas supply pressure measurement joint, an absolute pressure transmitter and a four-range differential pressure transmitter. According to the invention, multi-path steady-state pressure measurement is realized by controlling the opening and closing states of the four electromagnetic valves; the limitation of the geometric dimension and the installation position of the rotary measurement subsystem is removed, the defect that the overall rigidity of a conventional system is weakened due to the fact that a shaft system is long is overcome, and stable operation of a rotor system at a high rotating speed is achieved. By introducing the differential pressure transmitter with four ranges, the contradiction between the pressure measurement range and the measurement precision is solved, and wide-range and high-precision multi-point pressure measurement is realized.

Disclosed is a speaker assembly. The speaker of the present disclosure may include a first housing in which a first speaker is mounted; a second housing in which a second speaker is mounted, and which is adjacent to the first housing; and a plate which protrudes from the first housing toward the second housing, and to which the second housing is movably coupled, wherein, when the second housing moves away from the first housing, a portion of the plate between the first housing and the second housing may be configured to bend.

The invention relates to the technical field of flow detection, in particular to a circulating self-calibration flow online detection method and system.The circulating self-calibration flow online detection method comprises the steps that preset standard meters are connected in parallel to form a flow detection system, and the piston measuring range and the standard meter flow measuring range in the flow detection system are collected; comparing and analyzing whether the flow measuring range of the standard meter is within the piston measuring range; if yes, indicating the piston to perform flow calibration on the to-be-detected standard meter; and if not, carrying out iterative calibration according to a preset flow circulation self-calibration strategy so as to improve the measurement range of the flow detection system. The method has the advantages that the detection range effect of the standard meter in large-flow detection is improved, and meanwhile the detection uncertainty can be reduced.

The invention discloses a variable range magnetic sensor based on a magnetic shielding effect and application, the variable range magnetic sensor comprises a magnetic shielding sleeve, a printed circuit board and a magnetoresistance sensing chip, the magnetic shielding sleeve is embedded in the printed circuit board, and the magnetoresistance sensing chip is arranged on the printed circuit board and located in the magnetic shielding sleeve. A single-layer double-opening permalloy magnetic shielding sleeve is nested on a PCB (Printed Circuit Board), and a magnetoresistance sensing chip is arranged in the magnetic shielding sleeve. The structure is designed to be used for increasing the measuring range of the magnetoresistance sensing chip, and dynamic adjustment of the measuring range of the sensor is achieved by adjusting the position and the thickness of the magnetic shielding sleeve. The sensor described by the invention can be better applied to a scene with a wide dynamic magnetic field range, and has better nonlinearity and anti-interference capability.

According to the laser emission module and the laser radar provided by the embodiment of the invention, the micro cylindrical lens array is arranged on the laser beam optical path of the laser, each micro cylindrical lens in the micro cylindrical lens array corresponds to one emission channel in the laser, and the micro cylindrical lens is a convex cylindrical surface, so that the laser emission efficiency is improved; the curvature direction of the micro cylindrical lens array is the same as the slow axis direction of the laser beam, so that the micro cylindrical lens array has positive focal power in the slow axis direction and can be homogenized and collimated in the slow axis direction, and then the laser beam passes through the first cylindrical lens of which the curvature direction is the same as the slow axis direction and the first cylindrical lens has positive focal power in the slow axis direction so as to be collimated in the slow axis direction; therefore, linear light spots which are uniformly distributed within a certain angle range in the slow axis direction are realized, the measuring range and the reflectivity consistency of different view fields of the laser radar are improved, the number of optical lenses is reduced, and the installation and adjustment difficulty and cost of an emission lens are reduced.

The invention relates to a deep-sea flexible inductive pressure sensor and an automatic calibration method thereof. The deep-sea flexible inductive pressure sensor is mainly applied to pressure measurement when a deep-sea flexible gripper grabs an object. The sensor adopts a flexible printed circuit board and an inductance type pressure sensing technology, and comprises the flexible printed circuit board, a coil inductor drawn on the flexible printed circuit board, an ultra-soft silica gel layer uniformly coated on the flexible printed circuit board, a copper foil layer covered on the ultra-soft silica gel layer and a sealing film covered on the copper foil layer. When the pressure acts, the deformation of the copper foil causes the change of the inductance value of the coil, and the pressure detection is realized by detecting the inductance change. The sensor provided by the invention can provide high-sensitivity and high-reliability pressure measurement in an environment with high hydrostatic pressure and dynamic grasping pressure, can maintain high adaptability and reliability in a deep sea environment, and provides reliable technical support for deep sea exploration and engineering application.

The application discloses a kind of foam-based flexible tactile sensor and its preparation method, the flexible tactile sensor has three-layer structure, middle layer is PEDOT:pss / rGO composite foam, the composite foam is tactile sensing material, and the upper and lower layers are both flexible PDMS film;The application uses simple and efficient hydrothermal synthesis method and subsequent flash instantaneous irradiation reduction method, and prepares a kind of three-dimensional porous PEDOT:pss / rGO composite foam, can effectively and maximumly keep the composite skeleton structure of original PEDOT:pss / GO foam, and makes PEDOT:pss polymer polymer and rGO sheet closely connected, so that PEDOT:pss / rGO composite foam has better mechanical elasticity and high conductivity, so that flexible tactile sensor has high sensitivity, ultra-low detection lower limit, short response time and good stability and other excellent performance, widely used in human health, motion monitoring and other fields.

This utility model discloses a cell culture dish shaking device, relating to the field of cell culture equipment technology. The utility model includes a housing with a tray on top. A locking mechanism is movably connected to the top of the tray, and a shaking mechanism is fixedly connected to the inner cavity of the housing. The locking mechanism of this utility model employs a design of magnetic locking blocks engaging with slots and magnetic adsorption. When replacing the expansion plate, the experimenter only needs to align the magnetic locking block of the expansion plate with the slot on the tray, and installation can be quickly completed using magnetic force, without the need for any tools. Disassembly only requires applying an external force slightly greater than the magnetic force to separate the expansion plate from the tray, significantly saving experimental preparation and cleaning time and improving experimental efficiency. Furthermore, by replacing expansion plates of different specifications and shapes, it can adapt to cell culture dishes of different sizes, as well as diverse experimental containers such as flasks and deep-well plates, greatly enhancing the adaptability of the device to different experimental needs.

This application provides a power module and an electrical device. The power module includes a battery cell and a circuit board electrically connected to the battery cell. A number of the battery cell is one. The battery cell is configured to feed a first voltage to the circuit board. The battery cell includes a housing and an electrode assembly disposed in the housing. The circuit board includes a buck-boost circuit and at least two output terminals. The buck-boost circuit is configured to receive the first voltage and step up or step down the first voltage, so as to output at least two different second voltages to the at least two output terminals respectively. Each of the output terminals is configured to feed one of the second voltages to a drive circuit in a load electrically connected to the output terminal. Therefore, by outputting different second voltages through a single battery cell, the power module saves the manufacturing cost of the power module and increases the energy density of the power module.

This application discloses a portable beauty instrument, including a housing, including an end portion and a side portion that are used for contacting to-be-processed skin; and electrodes, including: a first electrode, where a part of the first electrode is located in the end portion of the housing, and a remaining part is located in the side portion of the housing; and third electrodes, disposed in the end portion or the side portion of the housing, where the third electrodes include group-C electrodes, and each of the group-C electrodes and an adjacent first electrode may form an electrode pair to generate a microcurrent. In this application, the first electrode is disposed in a connection region between the end portion and the side portion of the housing, and the first electrode may cooperate with the third electrode in the end portion or the side portion to form an electrode pair, so that the beauty instrument can discharge to a piece of local skin by using the first electrode, and also discharge to another piece of skin by using the third electrode. In addition, disposing the first electrode can further increase an electrode quantity of the beauty instrument, expand a range of skin to which a current of the beauty instrument can radiate, and enhance a cosmetic effect of the beauty instrument.

The invention discloses a gun barrel for improving the ballistics of a water bullet gun. The end of the gun barrel adopts a beveled structure. The intersection line of the beveled surface of the beveled structure and the radial vertical surface of the gun barrel is a horizontal line. The beveled surface is arranged obliquely downward and forward when the water bullet enters the beveled structure. When the water bullet enters the beveled structure, the contact surface between the water bullet and the inner wall of the gun barrel gradually decreases. The angle between the beveled surface and the barrel wall is 5 to 40 degrees. A muzzle compensator for improving the ballistics of a water bullet gun is also disclosed. The muzzle compensator includes a friction generating sheet for being arranged at the end of the inner tube of the gun barrel. The end of the friction generating sheet adopts the beveled structure of the end of the gun barrel. A water bullet gun is also disclosed. The invention improves the structure of the gun barrel itself or arranges a muzzle compensator so that both have a beveled structure, so that the water bullet is ejected from the muzzle in an upward rotation manner, which can not only offset the attraction of the earth's gravity to the water bullet, slow down the falling of the water bullet, and extend the range, but also prevent the trajectory from deviating, with stronger directivity, improved hit rate, and enhanced gaming experience.

The invention discloses atomization dust falling equipment and method for building construction, and belongs to the technical field of atomization dust falling. The atomization dust falling equipment comprises a movable cart, an electricity storage structure is fixedly installed on the upper surface of the movable cart, a dust falling mechanism is fixedly installed on the upper surface of the movable cart, an outer cylinder is fixedly installed on the movable cart, and a filter cylinder is clamped in the outer cylinder; the lower end of the filter cartridge is fixedly connected with a slag discharge pipe, the lower end of the slag discharge pipe extends below the movable cart, a control valve is arranged on the slag discharge pipe, a transmission mechanism is arranged on the filter cartridge, the transmission mechanism is matched with a dust falling mechanism, a conveying mechanism is arranged in the outer barrel located on the outer side of the filter cartridge, and the conveying mechanism is matched with the dust falling mechanism. Through the arrangement of the mounting block, the arc-shaped vertical plate and the adjusting groove, in the rising process of the dust falling pipe, the water outlet of the hose is subjected to the effect of the adjusting groove, the water pressure sprayed by the hose is gradually increased, then the spraying range of water mist sprayed by the atomization spray head is enlarged, the atomization dust falling range is enlarged, and the dust falling efficiency is improved.