38results about How to "Real-time discharge" patented technology

The invention relates to the field of wastewater treatment and in particular relates to an inorganic chemical wastewater treatment tank capable of improving the cleanness of wastewater. The inorganic chemical wastewater treatment tank capable of improving the cleanness of the wastewater, provided by the invention, is characterized by comprising a sedimentation tank; a water inlet is arranged at one end of the sedimentation tank and a water outlet is arranged at the other end of the sedimentation tank; a sliding groove is formed in a side wall in the sedimentation tank; a filtering screen is obliquely arranged in the sedimentation tank; a dreg discharging hole is formed in one side, close to the lower end of the filtering screen, of the sedimentation tank; the edge of the filtering screen is connected with a sliding block; the sliding groove is arranged in the sliding block in a sleeving manner; a hoisting air cylinder is mounted at the bottom of the sedimentation tank; a piston rod of the hoisting air cylinder is fixed at the bottom of the filtering screen. According to the inorganic chemical wastewater treatment tank provided by the invention, the disadvantages in the prior art are overcome, and the inorganic chemical wastewater treatment tank capable of discharging sludge from the upper side and convenient for blow-off operation is provided; the problems that a blow-off hole of an existing wastewater treatment tank is arranged at the lower side and the clarification degree of the wastewater is low are solved.

The invention discloses a rotary filtration method for sewage. The method comprises the following steps: external force drives a rotary filter assembly to make the rotary filter assembly rotate arounda central axis perpendicular to the ground; when the sewage to be treated enters the interior of the rotary filter assembly through an outer surface, dirt is blocked at the outer surface of the rotary filter assembly; and water entering the interior of the rotating filter assembly is discharged through a first discharge opening communicating with the interior of the rotary filter assembly. A filter comprises a filter main body, the rotary filter assembly, a rotary power device, a water inlet and the first discharge opening; the rotary power device drives the rotary filter assembly for rotaryfiltration; the external sewage passes through and is filtered by the rotary filter assembly, and the dirt is blocked outside the rotary filter assembly; and the first discharge opening is arranged inthe bottom of the filter main body, runs through an inner cavity of the rotary filter assembly and is used for discharging filtered sewage. According to the method and filter disclosed by the invention, rotary filtration greatly improves filtration capacity and operation efficiency and enables oil stain to be accumulated at the upper part of the filter main body, and comprehensive efficiency of oil-water separation is greatly improved.

The invention discloses an intelligent engineering construction site car wash platform and a working method thereof. The intelligent engineering construction site car wash platform comprises a base body, a bearing platform, a reinforcing beam, iron pipes, elastic damping devices, infrared sensors, pressure sensors, nozzles, a communication pipe, pipe valve switches, a water tank, a drainage channel and a control system. The base body is embedded in the ground, the bearing platform is directly arranged right above the inside of the base body, and the bearing platform is composed of the reinforcing beam and the iron pipes; the elastic damping devices, the infrared sensors and the pressure sensors are distributed under the bearing platform; the control system is arranged on a control room near the car wash platform and can record bearing conditions on the platform in real time and control a car washing switch; the nozzles are located directly above the iron pipes, and four nozzles are arranged on each iron pipe; the pipe valve switches are located on the edge of the middle iron pipe, and are connected with the communication pipe and communicates with the iron pipes; and the water tankis located on the edge part inside the base body to form a drainage system with the drainage channel.

The invention discloses a combination exhausting system adopting a reaction of manganese ore powder and sulfuric acid. The combination exhausting system is characterized in that stirring systems are arranged in combination barrels which are connected with an induced draft fan through exhausting pipes, the induced draft fan is tangentially connected with a cyclone tower for exhausting, and throttles are arranged in the exhausting pipes; multiple groups of cyclones comprising large cyclone plates, small cyclone plates and cone hopper plates are vertically arranged in the cyclone tower; an impeller of the induced draft fan has hollow wedge-shaped blades; the shape contour of the induced draft fan is involute. By the aid of the induced draft fan and the cyclones, carbon dioxide gas produced by the reaction of the manganese ore powder and sulfuric acid is exhausted in real time, reaction proceeding is facilitated, carried ore powder is recovered effectively through gas cyclone, and energy conservation and emission reduction are realized; with adoption of the blades adopting the hollow wedge-shaped structure, dust on the impeller of the induced draft fan is cleaned in real time, the impeller strength of the induced draft fan is improved, the stability is enhanced, safety accidents caused by dust accumulation are eradicated effectively, and the combination exhausting system has broad application prospects.

The invention discloses a domestic rubbish disposal device convenient for slag discharging. The domestic rubbish disposal device comprises a combustion furnace body, an inlet air preheating mechanism and an air guiding mechanism, wherein the combustion furnace body comprises an upper furnace body and a lower furnace body; multiple combustion observation through holes are formed in the bottom of the furnace wall of the lower furnace body; multiple conical slag storage cavities which are arranged side by side are arranged on the bottom of the lower furnace body; a double-spiral slag discharging mechanism is arranged at the bottom of each conical slag storage cavity; the inlet air preheating mechanism comprises an annular preheating cavity which surrounds the upper furnace body; the air guiding mechanism comprises multiple first connection pipes, multiple first air guiding pipes, multiple second connection pipes and multiple second air guiding pipes; one end of each first connection pipe communicates with a first air outlet, and the other end of each first connection pipe communicates with the corresponding first air guiding pipe; and one end of each second connection pipe communicates with a second air outlet and the other end of each second connection pipe communicates with the corresponding second air guiding pipe. According to the domestic rubbish disposal device, preheated air is directly guided into a rubbish combustion part in the lower furnace body for combustion-supporting, so that rubbish can be combusted more fully.

The invention discloses a hardware pipe fitting inner wall grinding device and a grinding method thereof. The device comprises a mounting plate, a grinding sleeve, a main shaft and a motor, wherein the grinding sleeve is mounted on the left side of the mounting plate, the left end of a straw is fixed on an annular plate, the annular plate is rotatably mounted in an annular groove on the right endface of the mounting plate, and the right end of the straw communicates with the bottom end of an air supply box, and the bottom end of the air supply box is distributed oblique to the right side. According to the hardware pipe fitting inner wall grinding device and the grinding method thereof, rust removal operation can be conducted on the interior of a horizontally distributed long-distance pipeline in real time while the inner wall of a pipe fitting is ground, so that the problem that the grinding efficiency is reduced due to accumulation of rusty debris is effectively avoided, meanwhile, the grinding device guarantees that a corner of the pipe fitting of a square or other special-shaped structure can be fully ground through innovative design of the grinding structure, no grinding deadangle exists, operation is very convenient, and an application range of the grinding device is greatly expanded.

The invention relates to the technical field of mine or tunnel ventilation, and provides an unpowered ventilation device and a tunnel. The unpowered ventilation device comprises a ventilation pipelineand an air blowing assembly, and a first air opening and a second air opening are formed in the ventilation pipeline; the air blowing assembly comprises a rotating fan and an unpowered wind ball, theunpowered wind ball comprises a rotating impeller, a rotating fan is installed in an inner cavity of the ventilation pipeline, the fan direction of the rotating fan extends towards the ventilation pipeline, the unpowered wind ball is installed outside the ventilation pipeline, the rotating impeller is installed in an air flue of the unpowered wind ball, and the rotating fan is in transmission connection with the rotating impeller; the rotating shell of the unpowered wind ball can converts airflow blown in each direction into vortex airflow in the same direction inside the unpowered wind ball,then, the rotating fan is driven to flap gas inside the ventilation pipeline to continue to flow in the same direction on the condition that no man applies power, and the ventilation efficiency of the ventilation pipeline is enhanced.

The invention discloses a konjac batch cleaning device. According to the konjac batch cleaning device, the upper end of a box is provided with a rotating tool; a bottom support is arranged under the rotating tool and composed of an arc fixed plate and an arc movable plate; the upper ends of the arc fixed plate and the arc movable plate are connected with a semicircular base through elastic extending rods; the rotating tool comprises a fixing tube, the inside of the fixing tube is provided with a central shaft, the lower end of the central shaft is provided with a central blade, and the upper end of the central shaft is connected in a sleeve mode with a motor through a spline; the lower end of the fixing tube is connected in a sleeve mode with a lower moving ring, and the upper end of the fixing tube is connected in a sleeve mode with a rotating ring; V-type blades are connected between the lower moving ring and the rotating ring; a driven rod is hinged between the V-type blades and thecentral shaft; the fixing barrel is provided with an upper moving ring at the upper end of the rotating ring; the upper moving ring and the lower moving ring are connected through a connecting rod; the lower end of the rotating ring is provided with a control ring; the control ring is provided with a control lever. The konjac batch cleaning device is high in cleaning efficiency and facilitates extraction of cleaned konjac, thereby being applicable to continuous konjac processing production.

The invention discloses a combination exhausting device for manganese ore powder and sulfuric acid reaction. Stirring systems are arranged in combination barrels, the combination barrels are connected with a draught fan through exhaust pipes, the draught fan is tangentially connected with a swirl tower and then is exhausted, and air valves are arranged in the exhaust pipes; multiple groups of swirlers, which consist of large swirl plates, small swirl plates and conical hopper plates, are vertically arranged in the swirl tower; an impeller of the draught fan has hollow and inverted-droplet-shaped vanes; and the appearance contour line of the draught fan is involute. According to the combination exhausting device, the real-time exhaust of carbon dioxide gas produced from the reaction between the manganese ore powder and the sulfuric acid is realized through the draught fan and the swirlers, the proceeding of the reaction is facilitated, carrying powdered ore is effectively recovered through gas swirling, and energy saving and emission reduction are realized; and the vanes are of hollow and inverted-droplet-shaped structures, thus dust on the impeller of the draught fan can be cleaned in real time, the strength of the impeller of the fan is improved, the stability is enhanced, and safety accidents caused by dust accumulation are effectively avoided, so that the application prospect is broad.

The invention discloses a device capable of guiding a tool path to prevent tool collision and discharging sweeps during machining of a CNC milling machine. The device comprises a moving box, a guide cavity with a forward opening and an intercepting spring are arranged in the moving box, and four moving holes with backward openings and a guide chip removal opening are formed in the rear wall of theguide cavity; and the four moving holes and the guide chip removal opening are distributed in an up-down and left-right symmetry mode with the center line of the guiding cavity as the symmetry center, and four wind power chip removal openings with backward openings are formed in the rear wall of the intercepting spring. The device can place a workblank or a workpiece in a clamp during machining of the CNC milling machine, when machining and feeding are carried out, the situation that when a tool makes contact with the workpiece, the tool collides or deviates can be prevented, tool breakage and workpiece scrapping are avoided, sweeps can be discharged in real time during machining and manufacturing, and the situation that machining and manufacturing are affected by the sweeps is avoided.

The invention discloses an intelligent regulation and control device for power operation environment and a control method of the intelligent regulation and control device. The device comprises a pedestal, a regulation and control device body, a dust cleaning mechanism, and a drying agent collecting mechanism. The base lifts the regulation and control device body at regular time, natural wind can blow through the lower portion of the regulation and control device body, heat dissipation can be achieved, and the internal structure of the regulation and control device body is not prone to being affected with damp. Dust on a net at a ventilation opening is cleaned through a dust cleaning mechanism, the heat dissipation efficiency is prevented from being reduced, and the service life of the regulation and control device body is prolonged; and a drying agent in the regulation and control device body can be replaced and reused, so that resource waste is avoided, aging of circuits in the regulation and control device body is effectively prevented, and the service life of the regulation and control device body is prolonged.

The invention discloses a chemical combination exhausting device for a reaction of manganese mineral powder with sulfuric acid. Stirring systems are arranged in chemical combination barrels connected with a draught fan through exhaust pipes, the draught fan is tangentially connected with a rotational flow tower and then emptied, and air doors are arranged in the exhaust pipes; multiple rotational flow devices comprising large rotational flow plates, small rotational flow plates and conical hopper plates are vertically arranged in the rotational flow tower; an impeller of the draught fan adopts such a structure that blades are in a hollow reversed water droplet shape and a back plate is in a dish shape; the contour line of the draught fan is an involute. Carbon dioxide gas produced due to the reaction of the manganese mineral powder with the sulfuric acid is exhausted in real time by the aid of the draught fan and the rotational flow devices, the reaction is facilitated, carried mineral powder is effectively recovered through rotational gas flows, and energy saving and emission reduction are realized; with the adoption of the structure that the blades are in the hollow reversed water droplet shape and the back plate is in the dish shape, dust on the impeller of the draught fan is cleaned in real time, the strength of the impeller of the draught fan is enhanced, the stability is enhanced, accidents caused by accumulation of the dust are effectively eliminated, and the device has the broad application prospect.

The invention discloses a combination gas exhaust system for the manganese mineral powder and sulfuric acid reaction. The system is characterized in that stirring systems are arranged in combination barrels; the combination barrels are connected with an induced draft fan through gas exhaust pipes; the induced draft fan is tangentially connected with a cyclone tower for exhaust, and dampers are arranged in the gas exhaust pipes; multiple groups of cyclone devices are vertically arranged in the cyclone tower, and each cyclone device comprises a large cyclonic plate, a small cyclonic plate and a conical bucket plate; an impeller of the induced draft fan has a structure comprising hollow wedge-shaped blades and a dish-shaped back plate; the shape contour line of the induced draft fan is an involute line. By means of the induced draft fan and the cyclone devices, carbon dioxide gas produced in the manganese mineral powder and sulfuric acid reaction is exhausted in real time, the reaction is facilitated, carried mineral powder is effectively recovered through gas cyclone, and energy conservation and emission reduction are realized; according to the structure comprising the hollow wedge-shaped blades and the dish-shaped back plate, dust on the impeller of the induced draft fan is cleaned in real time, the strength of the impeller of the induced draft fan is increased, the stability is enhanced, the safety accidents caused by dust accumulation are effectively eliminated, and the application prospect is broad.

The invention provides a flue gas condensing tube and a gas heater, which are used for solving the technical problems that condensed water of a gas heating device in the prior art is accumulated in apipeline or extinguishes flame, a gas heat value utilization rate is low, and a flue gas heat recovery rate is low. The flue gas condensing tube comprises a water container and a fire tube. The gas heater comprises the flue gas condensing tube, a housing, a condensed water inlet, a condensed water outlet, a combustion chamber, a gas tube, a condensed water exhaust device, an exhaust fan, a controller, a condensed water guide-out device and a power supply. With the adoption of the technical scheme adopted by the invention, a high-temperature section condensing tube and a low-temperature sectioncondensing tube are arranged, so that flue gas is prevented from forming condensed water in the high-temperature section condensing tube to extinguish the flame; the low-temperature section condensing tube adopts an S-shaped tube, and is relatively long, so that flue gas recovery efficiency is high, and thermal power of the heater is effectively improved; a bottom condensed water drainage deviceis arranged to exhaust condensed water in real time; and gas is sufficiently combusted through a reasonable excess air coefficient, so that gas is sufficiently combusted, and carbon monoxide is prevented from being generated while the heat value utilization rate is high.

The invention discloses a moxibustion cylinder with a massage function, which belongs to the field of moxibustion treatment, and comprises a main shell internally provided with a carrier cylinder anda rotating disc, and a pressure applying piece and a clamping piece are arranged in the carrier cylinder; a walking opening allowing the carrier barrel to penetrate through and horizontally move is formed in the rotating disc; an ash receiving assembly is arranged at the bottom of the main shell, and an ash discharging assembly comprises a material guiding bottom plate, an ash discharging openingformed in a main cylinder body and an ash collecting groove fixed to the outer side of the main cylinder body; a lifting rod with the lower end fixed with a massage ball penetrates through a guide bottom plate, the upper end of a lifting rod is connected with a sleeving cylinder fixed to the rotating disc through a spring, a lifting blending block is fixed to the inner side wall of the main cylinder body, and a fixing block abutting against the upper end face of the lifting blending block is fixed to one side of the lifting rod. The moxibustion cylinder is easy to control, the cost can be saved, the distance between the ignition position of the moxa cone and the skin can be kept, the moxibustion action range can be effectively expanded, and the effect of massaging the human body can be achieved while real-time discharge of moxa ash is promoted.

The invention relates to the technical field of ventilation of mines or tunnels, and provides an unpowered ventilation device and tunnel, which comprise a ventilation duct and a blower assembly, wherein a first air inlet and a second air inlet are arranged on the ventilation duct; the blower assembly comprises a rotary fan and a vortex impeller, the rotary fan is arranged in an inner cavity of theventilation duct, a fan direction of the rotary fan is in an extending direction of the ventilation duct, the vortex impeller is arranged outside the ventilation duct, and the rotary fan is in transmission connection with the vortex impeller; and the vortex impeller is driven by air flow of the ventilation duct to rotate unidirectionally, and the rotary fan is driven by the vortex impeller to rotate unidirectionally. The vortex impeller rotates along with the air flow outside the ventilation duct, so that the fan direction of the rotary fan is guaranteed to be stable, and an air flow direction in the ventilation duct is guaranteed to be stable; in addition, the blower assembly can transfer kinetic energy of the air flow in different directions outside the ventilation duct to the rotary fan, so that the efficiency of the blower assembly is improved and the ventilation efficiency in the ventilation duct is improved.

The invention discloses a wet tissue packaging system which comprises a rack. The rack is provided with a wet tissue conveying device, a heat sealing device and an exhaust control device. A variable frequency motor is arranged on the lower portion of the rack. The exhaust control device comprises a support which is connected with a rack body. A fixing plate is arranged on the upper portion of the support, an air cylinder is connected to the lower portion of the fixing plate, the lower end of a movable connecting bar of the air cylinder is connected with an exhaust strengthening plate, the air cylinder is connected with a compressed air pipeline through a magnetic exchange valve, a revolution counter is arranged at the end portion of a middle transmission shaft, metal monitoring points are arranged on the revolution counter, a proximity switch is arranged on one side, close to the middle transmission shaft, of the lower portion of the rack, the proximity switch corresponds to the metal monitoring points in location and connected with a frequency converter, and the frequency converter is connected with the magnetic exchange valve. By the arrangement, air inside a wet tissue bag can be exhausted in real time, exhaust speed is fast, heal sealing quality of the wet tissue bag is improved, the wet tissue bag is downsized, convenience is brought to transportation and carry, and transportation cost is decreased.

The invention relates to a processing method of a high-strength iron tailings aerated concrete block, which includes the preparation of finished product raw slurry: batching and pouring: curing and molding; the processing method of the high-strength iron tailings aerated concrete block can obtain production conformity The use of iron tailings concrete blocks with the highest strength requirements and the best strength performance realizes the comprehensive recycling and reuse of industrial wastewater, fly ash, and iron tailings; it is not the traditional mixture of iron tailings, fly ash, cement, and gypsum , but the iron tailings, wet ash mixture and conditioning pulp are firstly prepared as finished raw pulp, so that the iron tailings, wet ash and wastewater generated in the production can be discharged in real time and prepared for storage, and when it is necessary to prepare When making bricks, the prepared raw slurry can be extracted immediately without waiting, which improves the efficiency of waste recycling and block preparation, and simplifies the preparation process of iron tailing concrete blocks.

The invention relates to a multifunctional ventilating device with a sand removing function. The multifunctional ventilating device with the sand removing function comprises a shell, a power system, an inertia separating device and an air treating device, wherein the power system, the inertia separating device and the air treating device are arranged in the shell; an air inlet is formed in the bottom of one end of the shell; an air outlet is formed in the other end of the shell; air inlet shutters are arranged at the air inlet; air outlet shutters are arranged at the air outlet; the power system, the inertia separating device and the air treating device are sequentially arranged in the shell along the wind flowing direction; and the power system corresponds to the air inlet shutters. By using a negative-pressure type structure and the inertia centrifugal separating device, the multifunctional ventilating device with the sand removing function has the following advantages that the multifunctional ventilating device is free of maintenance and high in filtering efficiency and does not have consumable items.

The invention discloses air purification equipment which comprises an air inlet pipe, an air inlet hood, an air outlet hood, a cleaning box, a cleaning nozzle, a water spray row, a connecting orifice,a cleaning plate, a sealing strip, an adsorption core, an export box, an export pipe, an air inlet impurity filtering and anti-pollution treatment box structure, an air purification detachable cleaning core structure and a suspensible detachable supporting rack, wherein the transverse right end of the air inlet pipe is in threaded connection to the left end of the air inlet hood; and the right end of the air outlet hood is in threaded connection to a middle position of the left side of the cleaning box. By arranging the air export hood, the cleaning box, a filter screen, a detachable plate, awing-shaped screw and a filter element, impurities in entered gas are filtered favorably, so that the problem that the impurities are absorbed can be avoided, and the air filtering cleanliness is guaranteed. By arranging an impurity filtering screen, an impurity filtering square drum, an adsorption screen drum, a detachable bottom plate, a fixed cap and an adsorption inner core, the air purification effect is improved favorably and the air filtering treatment capacity is guaranteed.

The invention discloses an intelligent engineering construction site car wash platform and a working method thereof. The intelligent engineering construction site car wash platform comprises a base body, a bearing platform, a reinforcing beam, iron pipes, elastic damping devices, infrared sensors, pressure sensors, nozzles, a communication pipe, pipe valve switches, a water tank, a drainage channel and a control system. The base body is embedded in the ground, the bearing platform is directly arranged right above the inside of the base body, and the bearing platform is composed of the reinforcing beam and the iron pipes; the elastic damping devices, the infrared sensors and the pressure sensors are distributed under the bearing platform; the control system is arranged on a control room near the car wash platform and can record bearing conditions on the platform in real time and control a car washing switch; the nozzles are located directly above the iron pipes, and four nozzles are arranged on each iron pipe; the pipe valve switches are located on the edge of the middle iron pipe, and are connected with the communication pipe and communicates with the iron pipes; and the water tankis located on the edge part inside the base body to form a drainage system with the drainage channel.

The invention discloses an automatic cleaning assembly line for konjac processing. The automatic cleaning assembly line comprises a rough cleaning pool, a conveyor belt and a vibrating screen, whereinfeeding passage is arranged below the vibrating screen; the feeding passage is connected to cleaning equipment; a stem apex pit silt removal device is arranged on the top of the cleaning equipment; the stem apex pit silt removal device comprises a box, a cover body is arranged at the upper end of the box, and a rotational cutting tool is arranged at the center of the lower end of the cover body;a bottom support is arranged below the rotational cutting tool, and the bottom support comprises an arc-shaped fixed plate and an arc-shaped movable plate which are combined with each other to form the shape of a circular ring; a sliding shaft is arranged at the front end of the arc-shaped movable plate, and a control rod is arranged at the rear end of the arc-shaped movable plate; the control rodpasses through the box to extend out of an installing sleeve; the upper end of the arc-shaped fixed plate and the upper end of the arc-shaped movable plate are connected with semicircular seats through elastic telescopic rods respectively; and the two semicircular seats are matched with each other to form a positioning seat. By using the mode that rough cleaning is combined with fine cleaning, the automatic cleaning assembly line can be used for batch cleaning processing of konjac, the cleaning speed is high, konjac is cleaned up, and the automatic cleaning assembly line is applicable for rapid and continuous processing production.

The invention relates to a multifunctional ventilating device with a sand removing function. The multifunctional ventilating device with the sand removing function comprises a shell, a power system, an inertia separating device and an air treating device, wherein the power system, the inertia separating device and the air treating device are arranged in the shell; an air inlet is formed in the bottom of one end of the shell; an air outlet is formed in the other end of the shell; air inlet shutters are arranged at the air inlet; air outlet shutters are arranged at the air outlet; the power system, the inertia separating device and the air treating device are sequentially arranged in the shell along the wind flowing direction; and the power system corresponds to the air inlet shutters. By using a negative-pressure type structure and the inertia centrifugal separating device, the multifunctional ventilating device with the sand removing function has the following advantages that the multifunctional ventilating device is free of maintenance and high in filtering efficiency and does not have consumable items.

The invention discloses a high-precision PT200 high-temperature sensor, which includes a thermistor and a detection rod. A resistance cavity with a heat dissipation function is opened inside the detection rod, and an exhaust gas passage is opened through the outer wall of the detection rod. A transition port is opened between the tail gas passage and the resistance chamber. In the present invention, a tail gas channel is provided on the detection rod, and a transition port is set between the tail gas channel and the resistance cavity, and the heat resistance plate with a vacuum inside is rotated in the tail gas channel. When the disk swings, the groove acts as a "valve" between the resistance cavity and the exhaust gas channel, that is to say, the resistance cavity and the exhaust gas channel are connected and blocked. The resistor can contact the latest exhaust gas in real time; and a heat dissipation pipe is installed outside the detection rod, and the heat dissipation pipe can discharge the heat in the resistance cavity in time, so the residual temperature in the resistance cavity will not affect the accuracy of the thermal resistance real-time monitoring.

The invention discloses a hydraulic static level with automatic exhaust function. The upper end of the longitudinal liquid cavity pipeline is an exhaust port, and the upper part of the static level shell is provided with a concave exhaust valve that communicates with the exhaust port. The hydraulic static level with automatic exhaust function also includes an automatic exhaust valve partially accommodated in the exhaust valve accommodating cavity, and the automatic exhaust valve includes: a valve shell, an exhaust flange, Elastic expansion piece and valve plug. The invention also discloses a method for adjusting and balancing a hydraulic static level with automatic exhaust function. The invention aims to solve the technical problem that the static level in the prior art cannot be discharged in time due to the generation of air bubbles during the service process, resulting in inaccurate measurement of pressure, thereby affecting the accuracy of settlement measurement.

The invention relates to the technical field of ventilation of mines or tunnels, and provides an unpowered ventilation device and tunnel, which comprise a ventilation duct and a blower assembly, wherein a first air inlet and a second air inlet are arranged on the ventilation duct; the blower assembly comprises a first rotary fan and a second rotary fan, the first rotary fan is arranged in an innercavity of the ventilation duct, a fan direction of the first rotary fan is in an extending direction of the ventilation duct, the second rotary fan is arranged outside the ventilation duct, the firstrotary fan is in transmission connection with the second rotary fan; and a one-way mechanism is arranged in a transmission chain from the first rotary fan to the second rotary fan. Under limitation of the one-way mechanism, the fan direction of the first rotary fan is fixed, so that an air flow direction of the ventilation duct is uniform, a repeated air flow direction in the ventilation duct isavoided, a stable air flow direction in the ventilation duct is guaranteed, thereby increasing quantity of air flow in the ventilation duct in unit time and further improving the ventilation capacityof the ventilation duct.

The invention discloses a konjac batch cleaning device. According to the konjac batch cleaning device, the upper end of a box is provided with a rotating tool; a bottom support is arranged under the rotating tool and composed of an arc fixed plate and an arc movable plate; the upper ends of the arc fixed plate and the arc movable plate are connected with a semicircular base through elastic extending rods; the rotating tool comprises a fixing tube, the inside of the fixing tube is provided with a central shaft, the lower end of the central shaft is provided with a central blade, and the upper end of the central shaft is connected in a sleeve mode with a motor through a spline; the lower end of the fixing tube is connected in a sleeve mode with a lower moving ring, and the upper end of the fixing tube is connected in a sleeve mode with a rotating ring; V-type blades are connected between the lower moving ring and the rotating ring; a driven rod is hinged between the V-type blades and thecentral shaft; the fixing barrel is provided with an upper moving ring at the upper end of the rotating ring; the upper moving ring and the lower moving ring are connected through a connecting rod; the lower end of the rotating ring is provided with a control ring; the control ring is provided with a control lever. The konjac batch cleaning device is high in cleaning efficiency and facilitates extraction of cleaned konjac, thereby being applicable to continuous konjac processing production.