308 results about "Reaction speed" patented technology

The invention relates to the technical field of data processing, and provides an automatic control system and method for a hollow plate extrusion production line, and the method comprises the steps: collecting a real-time temperature data sequence, a speed change data sequence and a pressure response data sequence in a hollow plate extrusion process, and carrying out the multi-dimensional feature extraction and response collaborative analysis; obtaining a traction speed correction instruction sequence and a screw rotation speed adjustment instruction sequence; and performing linkage control on the hollow plate extrusion production line according to the traction speed correction instruction sequence and the screw rotation speed adjustment instruction sequence. Through multi-dimensional feature extraction and response collaborative analysis, accurate monitoring and adjustment of multiple key parameters such as temperature, speed and pressure are achieved, the production efficiency and the stability of product quality are improved, a hollow plate extrusion production line can operate efficiently and stably in a complex and changeable production environment, and the production efficiency is improved. The problems that an existing control method is low in reaction speed and insufficient in adjusting precision in the face of complex production working conditions are solved.

The invention provides graphene production equipment, and relates to the technical field of linear compound machines, the graphene production equipment comprises a base and a preparation cylinder rotatably arranged at the top of the base, and a mixing mechanism is arranged at the top of the base; the mixing mechanism comprises a lifting component arranged at the top of the base and a driving component arranged on the lifting component; the stirring part is arranged at the output end of the driving part, the disturbance radius of the stirring part can be expanded relative to the axis of the preparation cylinder, the springing part is arranged on the lifting part and can drive the stirring part to vertically reciprocate relative to the preparation cylinder when the stirring part works, and a rotating mechanism used for driving the preparation cylinder to rotate in a reciprocating mode is further arranged at the top of the base. According to the device, a mixed solution for preparing graphene can be stirred in multiple directions, particles attached to the inner wall of the device can be scraped to enable the mixed solution to react continuously and thoroughly, in addition, the mixed solution can be heated uniformly, and then the solution reaction speed and the graphene preparation speed are increased.

The invention discloses a one-way adjustable nozzle for gas immersion jet. The one-way adjustable nozzle comprises a spring chamber and a pressure chamber. A pressure spring and a pressure relief hole are arranged in the spring chamber, the pressure chamber comprises a gas inlet, a connecting rod and a nozzle plug, and a sliding block is arranged on the boundary of the two chambers. According to the invention, in a non-starting stage and an air inlet initial stage, reaction immersion jet flow bath liquid is prevented from flowing back into the nozzle to corrode or solidify and block the nozzle, and condensation immersion jet flow bath liquid is prevented from further flowing into a pipeline to cause a water hammer or a phenomenon that a measurement sensor is damaged due to water inlet; therefore, the service life of experimental equipment is prolonged and the experimental safety is enhanced. Furthermore, the device is simple in structure, does not need other power supplies, is high in reaction speed, is high in precision, is high in bearing capacity, can achieve the precise blocking of bath lotion with different pressures, and meets the application demands of different gas pressure working conditions.

The invention discloses a xenon oscillation automatic suppression auxiliary early warning prompting method based on a 3AO method, and belongs to the technical field of nuclear power reactor core monitoring. Firstly, various high-precision sensors are arranged at key parts of a nuclear reactor, occurrence signs of xenon oscillation are captured in time, and the system can accurately identify early signals of xenon oscillation by analyzing data of the sensors, so that a basis is provided for formulation of a subsequent control strategy. The core of the control strategy is fusion of a 3AO method and a deep Q network algorithm, the algorithm comprehensively considers the real-time state of the reactor core, and a control decision is optimized by learning historical data, so that the optimal control rod position and boron concentration adjustment scheme is calculated. And then, the system automatically prompts an operator to adjust the control rod and the boron concentration according to a control instruction generated by an intelligent algorithm so as to respond to the change requirement of the nuclear reactor in real time, and an efficient closed-loop control system is formed by feeding back an adjustment effect in real time, so that the accuracy and the reaction speed of a control strategy can be continuously improved.

The utility model provides a reaction kettle for chemical industry, which relates to the technical field of chemical industry and comprises a kettle body, and the top of the kettle body is fixedly connected with a cover plate. The hydraulic rod drives the piston to move, so that the medicine pumping pipe pumps quantitative solution and conveys the solution into the hollow pipe through the hose, in the conveying process, the driving gear and the transmission gear are driven to rotate under the starting of the motor, and under the action of the rotary sealing joint, the solution is conveyed into the hollow pipe through the hose. A hollow pipe and a stirring blade are driven to rotate, a solution can be conveyed to different positions in the kettle body through a medicine outlet, and meanwhile, a transmission gear can drive two driven gears to synchronously rotate, so that two threaded sleeves rotate along a fixed frame and can be driven to reciprocate up and down along a reciprocating screw rod; and a fixed frame and a hollow pipe are driven to reciprocate, so that stirring blades reciprocate up and down during rotation, an added solution is fully mixed with internal raw materials, the reaction speed is increased, and the practicability is relatively high.

The invention discloses reaction equipment of a low free isocyanate polyurethane prepolymer, and relates to the technical field of reaction equipment.The reaction equipment comprises a bottom plate, a reaction tank is arranged on one side of the upper portion of the bottom plate, fixing legs fixed to the bottom plate are arranged at the lower end of the reaction tank, and heaters are embedded in the two sides of the interior of the reaction tank; a feeding opening is formed in one side of the upper end of the reaction tank, a bottom partition plate is fixedly connected to the lower end in the reaction tank, and an inclined spraying pipe is rotationally connected to the bottom partition plate; by arranging the liquid pumping assembly, the liquid supply assembly and the driving assembly, liquid in the reaction tank can be pumped into a pumping barrel during use and then conveyed to an inclined spray pipe and a middle spray pipe to be sprayed out, and meanwhile, the inclined spray pipe rotates to continuously change the spraying direction of the inclined spray pipe, so that irregular turbulent flow is formed in the reaction tank, and the reaction effect is improved. Meanwhile, intermittent liquid spraying of the inclined spraying pipe is matched, so that the material mixing efficiency can be greatly improved, and the reaction speed is increased.

The invention relates to the field of polishing and grinding equipment, in particular to a single-degree-of-freedom constant-force polishing and grinding device which comprises a main support, a rotating motor is installed above the main support, a voice coil motor is installed on the bottom face of the main support, the output end of the rotating motor is coaxially connected with a spline shaft, and the spline shaft sequentially penetrates through the main support and the voice coil motor to be arranged. The lower portion of the spline shaft is sleeved with a spline sleeve, the spline sleeve slides in the axial direction relative to the spline shaft and is fixed in the circumferential direction, the spline sleeve is fixed in the axial direction relative to the output end of the voice coil motor and rotates in the circumferential direction, and a polishing and grinding head is installed on the lower portion of the spline sleeve. The polishing and grinding device is composed of main shaft rotating motion driven by the rotating motor and linear displacement motion driven by the voice coil motor along the main shaft, and has the advantages of being simple in control mode, high in response speed, high in displacement control precision and the like.

An anti-collision protection device for a mining monorail crane belongs to the technical field of underground safety and comprises two fixing supports, the two fixing supports are fixedly arranged at the front end and the rear end of the monorail crane, and a hydraulic ball valve is fixedly arranged on each fixing support. An oil inlet and an oil outlet of the hydraulic ball valve are respectively connected with the brake oil cylinder through a hydraulic oil pipe, a control handle of the hydraulic ball valve is vertically arranged, the control handle is fixedly connected with a touch rod, and the end, away from the control handle, of the touch rod extends in the direction away from the monorail crane. The touch rod moves towards the direction of the monorail crane under the action of impact force, the touch rod synchronously drives the control handle to act so as to open the hydraulic ball valve, then the brake oil cylinder can be controlled to be started, instant stopping is achieved, accidents are reduced, the monorail crane is prevented from being collided, and the anti-collision protection device is simple in overall structure and convenient to operate. The device is convenient to install and use, low in use cost, simple in trigger control mode, higher in trigger reaction speed and higher in use safety performance.

Disclosed in the present invention are an intelligent measurement and control apparatus and an industrial design application method. The key to the technical solution comprises: construction and application of an AIGC agile industrial design model, a human-computer collaborative design process, construction of the application paradigm of industrial product generation scenarios, model optimization decision based on cognitive analysis, and application case research and verification. The AIGC model, by means of quickly generating and optimizing the design solution, significantly improves the design efficiency and innovativeness. By means of accurate demand analysis and decision-making optimization, the design solution is ensured to be consistent with the expected level of the user, and the user satisfaction is improved. The agile design method and multi-iterative optimization ensure that the design process is efficient and accurate, and the design quality and reliability are improved. The design solution is quickly generated and optimized, such that the product development period is effectively shortened, and the market reaction speed and competitiveness of an enterprise are improved.

This invention relates to the field of vehicle transmission technology, and more particularly to a high-strength, highly responsive front and rear axle electronic differential lock, comprising a differential housing assembly, a differential gear mechanism, and a differential lock thrust actuator. The rear end of the differential housing mount and the front end of the differential housing cover of the differential housing assembly are connected by differential housing connecting bolts. The differential gear mechanism includes a left half-shaft gear, an embedded cross shaft, planetary gears, and a right locking half-shaft gear. The left half-shaft gear, planetary gears, and right locking half-shaft gear are sequentially meshing bevel gears. A differential lock thrust actuator is located on the rear side of the right locking half-shaft gear to prevent its rotation. In this invention, the differential lock thrust actuator, the embedded cross shaft, and the sliding track plate are all arranged on the differential housing cover, which not only improves the structural compactness of the differential lock but also significantly enhances the differential lock's response speed and locking stability, while reducing the complexity of installation and maintenance.

The invention discloses a chemical reaction gas real-time monitoring method and device and a storage medium, and belongs to the technical field of chemical laboratory safety, and the method comprises the steps: obtaining a video frame image, and carrying out the image synchronization through a timestamp; according to the y-axis coordinate information of the bubble contour, judging whether the bubble contour needs to be spliced with a next frame of image or not; performing optimal matching on bubble contours in the spliced images by using a Hungary algorithm to obtain matched bubble contours; acquiring a correction coefficient according to the matched bubble contour, and correcting the bubble contour according to the correction coefficient; inputting the corrected image and the coordinates of the bubble contour into a pre-trained DBPP-Net network, and outputting the equivalent diameter and the equivalent volume of the bubble; whether the chemical reaction speed is abnormal is judged, and real-time monitoring of chemical reaction gas is achieved; according to the invention, real-time monitoring of the chemical reaction gas amount is realized, and the problem that the reaction speed acquisition in the current chemical experiment process is not intelligent and automatic enough is solved.

The present invention relates to a method of forming a thin film, a semiconductor substrate fabricated using the method, and a semiconductor device including the semiconductor substrate. According to the present invention, by effectively replacing the ligand of an adsorption precursor by using a reaction surface pretreatment agent and a ligand substitution agent in combination, the reaction speed may be improved and the thin film growth rate may be appropriately reduced. In addition, even when forming a thin film on a substrate with a complex structure, step coverage and the thickness uniformity of a thin film may be greatly improved, impurities may be reduced, and film quality may be improved.

The utility model provides a dye assistant adding mechanism, which relates to the technical field of adding mechanisms and comprises a stirring mechanism, and a blanking mechanism is fixedly mounted at the top of the stirring mechanism and comprises a feed pipe II. According to the utility model, under the matching of the stirring mechanism and the blanking mechanism, the motor II runs to drive the spiral blade to rotate so as to feed the dye auxiliary, so that the dye auxiliary feeding device has the advantages of accurate control, uniform dispersion, blockage prevention, high adaptability, energy consumption reduction, easiness in maintenance and the like, is beneficial to improving the production efficiency and the product quality, and reducing the production cost; secondly, the first motor operates to enable the stirring rod and the scraper blade to rotate, dye auxiliaries are stirred and mixed, the reaction speed can be increased, the reaction is more sufficient and uniform, and therefore the production efficiency and the product quality are improved, the mixing time is shortened, and the production cost is reduced; meanwhile, the scraper can prevent the materials from accumulating on the container wall to form dead angles.

The present invention discloses an electric folding and telescopic accompanying mechanism, which relates to the field of automobile parts manufacturing, and comprises a bracket, a fixing bracket symmetrically arranged on the bracket, a folding shell connected to the fixing bracket through a swing arm, a first driving connecting rod connecting the fixing bracket and the folding shell, a second driving connecting rod connecting the first driving connecting rod, and a driving arm penetrating the bracket and connecting the second driving connecting rod, wherein the driving arm controls the folding shell to perform a folding movement when the driving arm moves back and forth in a straight line; the present invention can be folded and hidden when not in use, and can be automatically opened when in use, so as to meet the use requirements in different situations, and has a small space occupancy, is stable when automatically telescoped, has a fast action response speed, and has a regular appearance, and increases the functionality of the dashboard without destroying the comfort.

The present invention relates to the technical field of denitrification agents, and in particular to a method for preparing a denitrification agent, wherein carbon dioxide, ammonia and water are subjected to a catalytic reaction in an organic solvent system to obtain a denitrification agent, wherein the catalyst is a Co-Ni catalyst. The reaction of the present invention increases the reaction rate under the action of a catalyst, greatly accelerates the reaction speed of the raw materials, and rapidly reacts to obtain micron-sized powder particles; the particle size of the denitrification agent generated by the reaction is concentrated in the range of 1-2 μm, which greatly accelerates the decomposition speed of the denitrification agent during use; the denitrification agent generated by the reaction has a high reaction activity, and according to experimental tests, it can be rapidly decomposed at 100-150° C., and the ammonia yield is greater than 95%.

The present application discloses a motor controller, a powertrain and a vehicle. The motor controller is applied to a drive motor and includes a control device and an inverter circuit. The control device is configured to receive a braking signal of the vehicle, a rotational speed signal of the drive motor, and a torque signal of the drive motor. The control device is further configured to determine that the vehicle is approaching a stop state and thus there is a parking requirement in response to the rotational speed indicated by the rotational speed signal being greater than zero and less than a preset rotational speed, and output a first control signal in response to the braking force indicated by the braking signal being equal to zero and the torque indicated by the torque signal being equal to zero, so as to avoid conflicting with the operation mode intended by the driver. The first control signal is used to control the motor rotational speed to decrease to achieve parking. Since the present application determines vehicle information in the motor controller and controls the motor rotational speed, the control path is shorter and the response speed is faster, thereby enabling rapid and accurate parking.

The utility model belongs to the technical field of sheet metal bending equipment, and discloses a pneumatic hinge cutter of a flexible bending center machine, which comprises a hinge cutter holder, and a hinge female cutter is fixedly mounted on one side of the bottom surface of the hinge cutter holder. The pushing assembly is matched with rotation control of the rotating rod, a rotating and swinging mode is utilized under thrust, the connecting function of the connecting assembly is matched, movement control over a set of movable inclined block cutters is achieved, the inclined faces of the movable inclined block cutters are matched with the inclined faces of the movable auxiliary cutters, and the hinge main cutter and the movable auxiliary cutters are pushed away in the transverse advancing process; compared with a common hinge knife which freely falls to act, the hinge knife has the advantages that the reaction speed is greatly increased, a metal plate is not scratched and the plate is not shoveled, and compared with a traditional hinge knife which is driven in a cylinder mode, the hinge knife has the advantages that the stroke is saved, the stroke is short, the action is fast, and the working efficiency is improved. The action efficiency is greatly improved, and the use effect is good.

The utility model provides a hydrolysis device for titanium dioxide production, which comprises a tank body, a sealing cover is sleeved on the top of the tank body, a stirring component is arranged in the tank body, a jacking component is arranged between the sealing cover and the tank body, and a quantifying component is arranged on the top of the sealing cover. When titanium dioxide is hydrolyzed, a stirring motor is started to drive a stirring shaft to rotate, meanwhile, the stirring shaft can drive a reinforcing block and a fixing frame to rotate, the fixing frame can drive two arc-shaped plates to rotate, and the two arc-shaped plates are crossed, so that raw materials in the tank body can be conveyed and stirred up and down in a reciprocating manner; the stirring shaft drives the sleeve and the blades to stir the upper part, the middle part and the lower part of the tank body at the same time, so that the reaction speed in the tank body is accelerated, the working efficiency of the hydrolysis process is improved, and the problems of poor stirring effect and great reduction of the working speed in the prior art are solved.

The application provides a fuel cut control method of a vehicle, which is suitable for a power assembly system of the vehicle, and comprises the following steps: obtaining a state parameter of the vehicle, and judging whether the vehicle enters a gear shifting operation according to the state parameter of the vehicle; if yes, obtaining a state parameter of the power assembly system, and judging whether a clutch satisfies a preset clutch pedal state acquisition condition according to the state parameter of the power assembly system; if yes, obtaining pedal state information of the clutch, and determining a fuel cut delay time of an engine according to the pedal state information of the clutch. According to the scheme, the fuel cut delay time is prolonged when the clutch pedal is combined, so that the fuel is fully combusted, and the emission requirement is met. Moreover, the speed difference between the engine speed and the input shaft speed of the gearbox is small, so that the impact and noise problems caused when the clutch is combined can be inhibited. When the clutch pedal is stepped on, the fuel cut delay time is shortened, so that the engine can enter the fuel cut state early, the speed of the engine can be rapidly reduced, and the driving smoothness and the response speed of the vehicle are improved.

The present application discloses a vibration reduction system of a hub motor, and a use thereof. The vibration reduction system of a hub motor comprises a brake, a vibration reduction mechanism, a torque transmission mechanism, and a hub motor. The brake is mainly used for braking and torque transmission. The vibration reduction mechanism is used for reducing the acting force of the weight of a motor on an automobile hub, reducing the load of the hub, and increasing the reaction speed of the hub. The torque transmission mechanism indirectly transmits the rotating torque of the motor to the automobile hub, and, at the same time, the torque transmission mechanism and the vibration reduction mechanism jointly prevent high-frequency, large-amplitude impact force of the automobile hub from being transmitted to the hub motor, and the unsprung mass of an automobile using the hub motor is reduced.

The automatic starting device used for training the starting skill can send out a starting password after waiting for random time to help athletes to increase the response speed and avoid the problem that the athletes start by pressing guns.

The invention relates to the field of reaction kettles, in particular to a reaction kettle. Comprising a support provided with a track, two symmetrically-arranged end plates are rotationally connected to the support, rotating frames rotationally connected to the track of the support are symmetrically arranged on each end plate, the two end plates are fixedly connected to a rhombic frame, a pressure adjusting pipe is fixedly connected to the rhombic frame, a feeding pipe is fixedly connected to the rhombic frame, and a discharging pipe is arranged on the lower portion of the rhombic frame. The two end plates are fixedly connected with gear rings respectively, and a plurality of edge wheels for driving the gear rings to rotate are rotationally connected to the support. The middle parts of the two end plates are rotatably connected with a dispersion plate, the two end plates are rotatably connected with two first push wheels, the two first push wheels are symmetrically arranged, the two end plates are rotatably connected with two second push wheels, and the two second push wheels are symmetrically arranged, so that materials can be fully dispersed from a plurality of corner angles of the prismatic container for mixing; the reaction speed of the materials is accelerated, and rapid reaction of the materials is realized.

The utility model relates to the technical field of embroidery machines, and discloses a thread trimming driving assembly which comprises a first shell, the bottom of the first shell is fixedly connected with a second shell, a driving mechanism is arranged in the first shell and comprises a first synchronizing wheel, and one side of the first synchronizing wheel is arranged on the left side of the upper surface of the upper portion in the second shell. A lead screw is arranged in the middle of the upper surface of the first synchronous wheel, a sliding block is arranged above the outer surface of the lead screw, and a connecting base is fixedly connected to the middle of the side, close to the front face, of the upper surface of the first shell. The first synchronizing wheel is arranged in the second shell and drives the lead screw to move, the sliding block is arranged on the outer surface of the lead screw in a sleeved mode, the lead screw can drive the sliding block to slide up and down, the lead screw moves up and down in a reciprocating mode and is matched with the blade to complete thread trimming motion, and the first fixing rod and the second fixing rod are responsible for guiding. Therefore, the reaction speed and precision of the device can be improved.

The invention discloses a lower ammunition feeding holder device and a robot, and relates to the technical field of ammunition feeding, the lower ammunition feeding holder device comprises a launching mechanism, a spring tube, a rotary support frame and a ball shifting assembly, a ball guide channel is arranged in the rotary support frame, the spring tube connects the launching mechanism with the ball guide channel, and the spring tube can be matched with the angle change of the launching mechanism to generate deformation; the two ends of the spring tube are fixed in the first fixing piece and the second fixing piece through the embedded hole positions, the upper protrusion and the lower protrusion of the first fixing piece and the tensioning piece are used for fixing and clamping the spring, the inner notch of the second fixing piece provides a transition space for deformation of the spring tube, and the inverted arc face prevents the spring from being squeezed to cause clamping and bouncing. A spiral guide rail of the ball shifting assembly and shifting teeth with columnar concave faces achieve single-grain and orderly supply of the projectiles, and the problems that in an existing projectile supply device, the center of gravity of a holder is high, the reaction speed is low, the structure is redundant, energy consumption is high, the launching precision is low, the launching angle range is small, and the projectiles are prone to being clamped are solved.

The application provides a multi-working-condition adaptive valve group, an expansion turbine and a reaction speed type expander. The multi-working-condition adaptive valve group has a distribution cavity with an air inlet and used for collecting and receiving a working medium; a plurality of valve body units are connected with the distribution cavity, each valve body unit has a different preset opening and closing pressure interval, and the opening and closing pressure interval of any valve body unit intersects with or has the same end point value as the opening and closing pressure interval of at least one other valve body unit, so that any valve body unit is closed, and at least one other valve body unit is necessarily opened. The application also provides an expansion turbine with the valve group, a reaction speed type expander applied with the expansion turbine, and the application of the expander. The valve group in the application can adaptively distribute according to the working medium pressure at the air inlet. When the valve group is installed in an expander, a compressor and other equipment or systems, the problems of under-expansion, over-expansion and other working condition matching in the prior art can be solved.

The utility model belongs to the technical field of self-dumping car braking, and particularly relates to a pin type exhaust valve which is characterized by comprising a valve casing, a lock cap, a connecting seat, an ejector rod, a sealing rod, a safety pin and a spring, the top of the valve casing is connected with the lock cap, a pin penetrating hole is formed in the lock cap, the bottom of the valve casing is connected with the connecting seat, and the sealing rod is arranged in the valve casing. An ejector rod is arranged above the sealing rod, and a safety pin penetrates through the lock cap and the ejector rod; a spring is arranged between the sealing rod and the valve shell; a sealing ring is arranged between the bottom of the sealing rod and the connecting seat; the bottom of the connecting seat is connected with a main air supply pipeline of a self-dumping car brake system; and the valve shell is provided with an exhaust port. Compared with the prior art, the automatic braking device has the advantages that during derailment, the pin type exhaust valve acts through the relative displacement between the axle and the carriage, and a braking system is triggered to achieve automatic braking; the reliability of safe operation is improved, and the response speed to derailment faults is increased.

The utility model relates to the technical field of salicylic acid production, in particular to an automatic acid-base adjusting device for salicylic acid residue treatment, which comprises a worktable, a barrel is fixedly mounted at the top of the worktable, a driving motor is fixedly mounted at the top of the barrel, and an output end of the driving motor penetrates into an inner cavity of the barrel and is fixedly connected with a stirring rotating shaft. The reaction speed between a reaction material and an adjusting agent can be increased, the stirring rotating shaft can stir the material for the first time, and then the stirring rotating shaft drives the conical auxiliary gear and the turning rotating rod to rotate through the conical main gear, so that the reaction speed of the material is increased, and meanwhile after the material reacts, the stirring speed is increased. The filter box can filter materials for the first time through the filter plate, then the filter frame is filled, and then the materials are filtered for the second time through the filter filler, so that some impurities which are difficult to dissolve or small can be filtered, and the reaction effect on the materials is improved.

The utility model discloses a soft sealing structure of a hydraulic lock, and belongs to the field of hydraulic locks. According to the technical scheme, the soft sealing structure of the hydraulic lock comprises a valve sleeve, a medium channel communicated with an external hydraulic oil way is arranged in the valve sleeve, and a valve element assembly is connected in the valve sleeve in a sliding mode. The valve element assembly slides to be provided with a first position used for sealing the medium channel and a second position used for opening the medium channel, a soft sealing part is arranged outside the valve element assembly, and when the valve element assembly slides to the first position from the second position, the soft sealing part can seal the medium channel. The soft sealing part abuts against the inner wall of the medium channel so as to seal the medium channel. By means of the soft sealing part, the sealing performance of the joint between the valve element assembly and the medium channel when the valve element assembly is located at the first position can be improved, abrasion of the valve body assembly is eliminated, the service life of the hydraulic lock is prolonged, the opening and closing response time of the hydraulic lock can be shortened, and the reaction speed of the hydraulic lock is increased.

The utility model provides a spiral conveyor for a shield tunneling machine. The spiral conveyor comprises a machine shell, a shaftless spiral body, a driving device and a liquid injection atomization device. The shaftless spiral body is rotatably arranged in the conveying cavity of the machine shell and is in transmission connection with the driving device; the multiple liquid injection atomization devices are evenly arranged on the machine shell in the axial direction parallel to the shaftless spiral body and used for spraying atomized liquid additives into the conveying cavity, the contact area between the liquid additives and the muck is increased, the reaction speed is increased, the atomized liquid additives can be rapidly mixed with the muck when the gushing phenomenon is dealt with, and the effect that the muck flows out is achieved is achieved. And an effective water stop barrier is formed. In addition, when the shaftless spiral body rotates, muck containing large blocks of obstacles such as large blocks of concrete or boulder pebbles can be conveyed, mixing of the liquid additive and the muck can be promoted through stirring, and the mixing efficiency of the liquid additive and the muck is improved.

The present invention is applicable to the technical field of wastewater treatment, and provides a filtering structure for laboratory wastewater treatment, the filtering structure comprising: a filtering chamber, a filter screen is installed in the filtering chamber; a neutralizing chamber, the neutralizing chamber is connected to the filtering chamber through a feeding channel, a feeding port is installed on one side of the neutralizing chamber, and the other side of the neutralizing chamber is connected to the material chamber through a feeding pipe; a stirring paddle; a heat-driven speed regulating mechanism, which adjusts the rotation speed of the stirring paddle while adjusting the feeding speed of the feeding pipe; the heat-driven speed regulating mechanism comprises: a feeding speed control component, which is connected between the neutralizing chamber and the feeding pipe, and converts the heat generated in the neutralizing chamber into a driving force to squeeze the feeding pipe; an adjustable speed stirring component, which is connected between the feeding speed control component and the stirring paddle, and transmits the driving force of the feeding speed control component to the stirring paddle. The present invention is provided with a heat-driven speed regulating mechanism, which adjusts the feeding speed and the stirring speed, reduces the reaction speed, and eliminates safety hazards.