39results about How to "No accumulation" patented technology

The invention discloses a separable pile tip type pile casing supporting structure and a separation construction method.The separable pile tip type pile casing supporting structure comprises a pile casing, a pile tip and a chain cable, the pile tip of the pile casing is formed by splicing two pile tip bodies, and the two pile tip bodies are connected in a relatively rotating mode through a connecting piece; the connecting piece is provided with a locking part which is used for preventing the two pile tip bodies from rotating relatively after the two pile tip bodies are spliced and connected together, clamping parts are arranged on the sides, back to the tip ends, of the two pile tip bodies correspondingly, and the two clamping parts are combined to form a clamping groove when the two pile tip bodies are spliced and connected so that a pile casing can be detachably clamped; the chain cable is connected between one pile tip body and the pile casing, the pile tip can be kept connected to the pile casing when being separated from the pile casing, a relative rotation space can be provided for the two pile tip bodies, the pile tip can be separated from the pile casing, pile casing construction can be better completed, and it is ensured that sediment, soil accumulation and the like do not exist in the pile casing.

The utility model discloses an energy storage cabinet convenient to mount and dismount, which comprises an energy storage main body, the energy storage main body comprises an energy storage cabinet body and a mounting bottom plate, and the energy storage cabinet body is arranged above the mounting bottom plate; the system further comprises; the installation adjusting mechanism comprises a base; the mounting mechanism is arranged on the outer side of the mounting bottom plate and used for mounting and connecting the energy storage cabinet and the ground; and the lifting mechanism is arranged on the inner side of the mounting bottom plate and used for lifting the whole energy storage cabinet body. The utility model discloses an energy storage cabinet convenient to mount and dismount. The mounting plate on the mounting mechanism can move on the connecting plate under the action of the moving mechanism, so that when the whole energy storage cabinet is mounted on the ground, the mounting plate can be moved through the moving mechanism, and the effect of avoiding mounting through bolts at concave and convex positions is achieved; therefore, the whole energy storage cabinet can be stably installed outdoors and indoors.

The utility model provides a material level monitoring alarm device for a powder warehouse, which comprises a raw material storage tank and a rotating shaft, a transparent glass batten is embedded at the right end of the inner wall of the raw material storage tank, a mounting rack is mounted at the upper end of the raw material storage tank, an electric telescopic rod is mounted in the mounting rack in a penetrating manner, and the movable end of the electric telescopic rod is connected with a first motor; a fixed sliding sleeve is fixed to the middle of the upper end of the raw material storage tank, a rotating shaft is slidably inserted into the fixed sliding sleeve, and the lower end of the rotating shaft is located in the raw material storage tank. The material level monitoring device solves the problem that the follow-up material level monitoring accuracy is affected due to the fact that the amount of powder in the raw material storage tank is small, is good in practicability, can feed and store materials, can whisk the powder to be flat when the powder in the raw material storage tank is fed, enables the powder not to be accumulated, and further improves the follow-up material level monitoring accuracy.

The utility model discloses a floor paint smearing brush which comprises a main body module and a smearing module used for smearing floor paint. Comprising a base rotationally installed at one end of a double-fork frame, a fixed pipe fixed to one side of the base, a movable pipe rotationally connected to the fixed pipe in a sleeving mode, a brush barrel fixedly connected to the movable pipe in a sleeving mode, a locking cover fixed to one end of the fixed pipe in a threaded connection mode and locking pieces symmetrically installed on the locking cover, and circular grooves are symmetrically formed in the two ends of the double-fork frame. Cylinders are fixed to the two sides of the base, the cylinders are rotationally embedded in a circular groove in one side of the double-fork frame so that the base can rotate conveniently, one end of the fixed pipe is fixed to the base and used for installing the movable pipe, the movable pipe is rotationally connected to the fixed pipe in a sleeving mode and used for installing the brush barrel, and the brush barrel is used for smearing floor paint on the ground. The device has the advantages of convenience in use and high practicability.

The invention belongs to the technical field of ice cream production, and discloses a particle plane spreading device which comprises a rack, a rotary drum, a material taking assembly and a material guiding assembly, a material collecting groove is formed in the rack, and particles are contained in the material collecting groove; the rotary drum is provided with a feeding hole and a discharging hole, and the feeding hole is communicated with the material collecting groove; the material taking assembly is rotationally arranged in the rotary drum and is used for taking and feeding materials; the material guiding assembly comprises an elastic piece and a vibration driving piece, and the vibration driving piece is configured to drive the elastic piece to vibrate so that the particles can bounce from the elastic piece and be scattered through the discharging opening. Automatic rotating material taking and feeding are achieved, and the particle taking precision and speed are improved; compared with the prior art, the influence of the particle size on the plane scattering uniformity is avoided, no particles are accumulated on the scattering surface, plane scattering of particles of multiple sizes can be achieved at the same time, and the plane scattering precision and efficiency of the particles are improved.

This utility model relates to the field of crane technology and discloses a novel lightweight gantry crane, including a crossbeam. A first threaded rod is rotatably connected inside the crossbeam, and a moving block is threadedly connected to the surface of the first threaded rod. A fixed pulley is fixedly installed at the rear end of the crossbeam, and a driving structure is provided on the upper surface of the crossbeam. This utility model utilizes a second motor. The rotation of the output shaft of the second motor drives the rotation of a first gear. The meshing between the first and second gears causes the first threaded rod to rotate inside the crossbeam, which in turn drives the moving block to move left and right. Because the fixed pulley and ball bearings share the weight of the load lifted from the lower part of the moving block, this device uses the first threaded rod to drive the movement. The cooperation between the fixed pulley and the slide rail, and the rotation of the ball bearings inside the mounting strip, converts sliding friction into rolling friction, thus enhancing the service life of the device.

This application discloses a foreign fiber removal device for cotton web, relating to the field of textile machinery and equipment. It includes a frame and a feeding conveyor belt, a foreign fiber detection component, and a spray valve assembly mounted on the frame. An impurity collection channel is fixedly provided at the feeding end of the feeding conveyor belt. The impurity collection channel has an upper opening as its inlet and a lower opening as its outlet, with the inlet plane located below the conveying surface of the feeding conveyor belt. The foreign fiber detection component and the spray valve assembly are located above the feeding conveyor belt and the impurity collection channel, with the detection end of the foreign fiber detection component and the ejection end of the spray valve assembly both facing the inlet of the impurity collection channel. This device can perform online foreign fiber detection and positioning on the cotton web output from the carding machine, and spray airflow to accurately eject foreign fibers. Combined with the fan and impurity collection channel, it quickly guides foreign fibers away from the production line, thereby effectively removing foreign fiber impurities from the cotton web and achieving online removal of foreign fibers from the cotton web.

The utility model relates to a soaking device for softening kelp. The soaking device comprises a soaking box, a soaking frame and a lifting structure, lifting structures are arranged on the two sides of the soaking box, each lifting structure comprises two shells which are symmetrically arranged, rack structures are arranged in the shells, gear structures are connected to the rack structures in a clamped mode, driving motors are arranged on the gear structures, and openings are formed in the two opposite sides of the two shells; the lifting structure further comprises a mounting rod, the two ends of the mounting rod are connected with the two gear structures through openings correspondingly, a U-shaped plate is arranged on the mounting rod, a U-shaped opening of the U-shaped plate is arranged downwards, and two vertical plates of the U-shaped plate are located on the inner side and the outer side of the soaking box correspondingly. And the two ends of the multiple soaking frames are connected with the vertical plates of the two U-shaped plates correspondingly. According to the kelp softening device, the multiple soaking frames are arranged, the kelp is laid and arranged at the interval between every two adjacent soaking frames, it is avoided that a large amount of kelp floats upwards and is accumulated together, then the kelp can make full contact with softening liquid, and the softening effect of the kelp is guaranteed.

The utility model discloses a mobile laser welding device, which relates to the laser welding field and comprises a base shell, one end of the upper surface of the base shell is fixedly provided with a motor shell, the motor shell is rotatably provided with a clamp, the upper surface of the base shell is provided with a sliding chute, a derusting and polishing device is arranged in the sliding chute, and the derusting and polishing device is arranged in the sliding chute. A plurality of semicircular sand paper plates are arranged, the semicircular sand paper plates can polish workpieces with different strengths according to the protruding degree of the surfaces of the workpieces, the derusting and polishing device can be matched with the workpieces with different diameters, and therefore the workpieces with different diameters can be derusted and polished. According to the polishing device, the polished weld joint can be circularly conveyed to one side of the polishing device under continuous rotation of the clamp, at the moment, the polishing sponge can polish the surface of the workpiece, the workpiece does not need to be disassembled, the polishing process is carried out while the welding process is carried out, dependence on manpower is reduced, and the production speed is increased.

The present invention discloses a screw-driven lead screw module, the structure of which includes a base plate, a controller, a button, a power lead, a motor, a sliding plate, a screw, a fixed block, a fixed frame, an automatic oil supply device and a brushing device. The screw-driven lead screw module of the present invention has the beneficial effect of solving the problem that the lead screw module cannot be automatically oiled, resulting in insufficient lubrication due to long-term use, thereby causing damage. By providing an automatic oil supply device, the solenoid valve is energized to work, the lock of the oil pot is released, and the lubricating oil inside the oil pot is transmitted to the inside of the oil nozzle through a conduit, and then the oil is sprayed on the upper end of the screw and the motor through the oil nozzle to lubricate the screw and the motor, thereby achieving the beneficial effect of being able to automatically oil the lead screw module and allowing the lead screw module to be adequately lubricated.

The invention relates to the technical field of building materials, and discloses a building material mixer which comprises a mixing box, a filter plate is fixedly connected into the mixing box, two discharge ports are formed in the right side of the mixing box, and the two discharge ports are formed in the left side and the right side of the mixing box; a first folding plate is fixedly connected to the back of the mixing box, a knocking mechanism is arranged in the mixing box and comprises a band-type brake motor, the band-type brake motor is fixedly connected to the front face of the first folding plate, and a first rotating rod is fixedly connected to the output end of the band-type brake motor through a coupler; according to the device disclosed by the invention, the transverse plate moves up and down to drive a knocking rod to move up and down, the knocking rod knocks a filter plate when moving upwards, and impurities blocked in the filter plate can be turned over after being knocked, so that the situation that the impurities block the interior of the filter plate and influence the filtering efficiency is avoided.

The invention discloses an oral care composition. The oral care composition comprises amino-modified porous silicon dioxide particles, povidone iodine distributed in internal pores of the porous silicon dioxide particles, and beta-cyclodextrin which is distributed on the surfaces of the porous silicon dioxide particles and completely coats the porous silicon dioxide particles. The oral care composition is safe and stable and can be directly used for producing oral care products, povidone iodine in the oral care composition is distributed in internal pores of porous silicon dioxide and coated with beta-cyclodextrin, and the influence of illumination, oxygen and water on active iodine sterilization components in the oral care composition is reduced. Amino groups on the surface of the porous silicon dioxide and hydroxyl groups in the coated beta-cyclodextrin can form more stable chemical bond combination, so that the stability of the composition is further improved, and the composition has long service life and stability. When the composition is used for the oral care agent, the effective iodine content is high, the rapid sterilization effect and the slow release effect can be achieved, and the effective use time of the antibacterial agent is prolonged.

The utility model discloses a horseshoe shape abrasive tool, including base base body, the symmetrical embedding of two diamond abrasive strips is equipped with on the base body, and the position of base body corresponds two diamond abrasive strips and forms the convex step upwardly, and the flow guide groove is formed between two convex steps and base body, and the flow guide groove includes the opening section and the export section, and the cross section area of opening section gradually reduces from inside to outside, and the cross section area of export section gradually expands from inside to outside. The utility model discloses setting the opening section of cross section area gradually reducing from inside to outside and the export section of cross section area gradually expanding from inside to outside, because the direction of the chip or airflow or water flow of the abutment of opening section and export section is consistent when the chip or airflow or water flow comes out from inside to outside, the mutual influence is already smaller, and the chip or airflow or water flow keeps stable, thereby fundamentally reducing or even eliminating the problem of base body vibration, and it is more favorable to the smooth discharge of grinding slag, and there is no accumulation.

The present invention relates to the technical field of organic fertilizer production equipment, and in particular to an organic fertilizer fermentation and compost turning integrated machine. It comprises a chain plate, a driving device arranged at the head end of the chain plate, and a rotating device arranged at the tail end of the chain plate, wherein the driving device comprises a driving sprocket for installing the chain and a driving motor for driving the driving sprocket; the rotating device comprises a rotating sprocket installed on the chain, and an upper slide plate and a lower slide plate arranged between the driving sprocket and the rotating sprocket; when the upper chain plate runs to the tail end, the flap on the chain plate flips downward to throw the material to the lower chain plate, and when the lower chain plate runs to the head end, the flap flips downward to throw the material to the discharging mechanism. The integrated machine integrates feeding, discharging and compost turning, has a compact structure, occupies a small space, has no dead angle in turning and throwing, no residue accumulation, and no waste of materials.

The present invention relates to a fixed-distance and fixed-speed feeding system for anti-stacking special-shaped bottles. The bottle feeding line is horizontally arranged, and the bottle feeding line carries and uniformly conveys the packaging bottles from front to back. The feeding system is installed on one or both radial sides of the rear part of the bottle feeding line. The feeding system uniformly separates the spacing between the packaging bottles and outputs them at a uniform speed. The feeding system can adjust the length of the working section. The system can adaptively adjust the material swallowing speed according to the speed of the incoming materials of the production line, and automatically adjust the working position and distance in a large range, so that no matter whether the incoming materials on the conveyor line are dense or sparse, it can actively and effectively cooperate, keep the packaging bottles with equal distances and output them at a uniform speed, and there is no accumulation of incoming materials.

The utility model discloses an integrated efficient flotation sedimentation physical and chemical intelligent machine which comprises a machine body, a dissolved air tank arranged in the machine body and a flocculation reaction area arranged in the machine body and used for sewage flocculation reaction. The flocculation stirring system is arranged in the flocculation reaction area and is used for promoting the flocculation reaction; the release valve hinge door plate and the air compressor hinge door plate are connected with the machine body, the dissolved air water release system is integrated in the release valve hinge door plate and used for releasing dissolved air water, and the air compressor is integrated in the air compressor hinge door plate and used for providing an air source for the dissolved air tank. The device has the beneficial effects that the inclined plate is combined with the flotation system, so that the flotation and precipitation integrated treatment is realized, the sewage treatment efficiency is improved, and the problem that the air dissolving water pump is blocked due to impurities contained in clear water when the water quality is poor and the impurities are more is effectively solved; the PLC system module is used for controlling and integrating the whole machine system, remote signal control is arranged, intelligent air floatation control is achieved, and management and operation are convenient.

The utility model provides a flexible rotary vibration screen which effectively solves the technical problems that in the prior art, in the using process of a vertical supporting spring, a vibrating body and a frame body of a screening machine vibrate for a long time, so that metal is subjected to fatigue vibration cracking, and in the prior art, the sealing effect of a sealing ring is poor. According to the technical scheme, the flexible rotary vibrating screen comprises a supporting bottom frame and a vibrating body arranged above the supporting bottom frame, a plurality of supporting springs which surround the supporting bottom frame by a circle and are arranged at intervals are connected between the supporting bottom frame and the vibrating body, and the upper ends of the supporting springs are obliquely arranged inwards. A vibration motor is installed at the lower end of the vibration body, and a motor sealing cover covering the vibration motor is further fixed to the vibration body.

This invention discloses an environmentally friendly construction waste resource recovery device, comprising: a mounting frame, a crushing component at the top of the mounting frame, a dust suppression component on the crushing component, and a discharge box and a water storage tank inside the mounting frame for solid-liquid separation of crushed materials and wastewater, the discharge box and the water storage tank being fixedly connected; in this invention, the pump, inlet pipe, outlet pipe, circulation pipe, spray cylinder, and spray holes of the dust suppression component work together to quickly and evenly spray water mist during the crushing of construction waste, efficiently adsorbing dust, effectively suppressing dust diffusion, avoiding dust pollution of the surrounding environment and harm to the health of operators. Simultaneously, the water used for dust suppression can be purified and recycled through the water storage tank, eliminating the need for additional large amounts of clean water, saving water resources. Furthermore, the spray cylinder is flush with the inner side of the crushing hopper, not affecting material crushing and falling, adapting to the actual needs of crushing operations, and improving the environmental friendliness and practicality of the device.

The utility model relates to the technical field of closed transportation of ball materials, in particular to an articulated chute type feeding device for closed transportation of ball materials, which comprises an obliquely arranged blanking pipe, a feeding end of the blanking pipe is connected with a discharging end of a previous process, a pipeline vibrator is mounted at the bottom of the blanking pipe, a purging pipe is further arranged at the upper end of the blanking pipe, and the purging pipe is connected with the pipeline vibrator. The purging pipe is obliquely arranged and communicated with the discharging pipe, the other end of the purging pipe is connected with a pneumatic control valve, and the pneumatic control valve is connected with an external air pipe. According to the utility model, all residual pellets can be effectively and thoroughly discharged from the inclined pipe by utilizing the operation of the pipeline vibrator; and if the materials are crushed or pulverized during collision, water-containing viscous powder is generated and is retained in the pipeline, and no dust accumulation in the pipeline can be ensured by executing a gas purging procedure specified by the process, so that the resistance in the ball material conveying process is reduced.

This invention belongs to the field of livestock and poultry breeding wastewater treatment and agricultural reuse technology, specifically relating to an electrochemically enhanced low-pressure ultrafiltration system and method for reusing livestock and poultry breeding wastewater. The electrochemically enhanced low-pressure ultrafiltration system includes an inlet tank, a constant-level water tank, a gravity-driven low-pressure ultrafiltration membrane module, a water collection device, and a constant-pressure driving power supply. The gravity-driven low-pressure ultrafiltration membrane module includes a reactor, and an anode, an ultrafiltration membrane, and a cathode pre-filtration layer installed within the reactor. The cathode pre-filtration layer consists of a biofilter cake layer and a cathode. This invention, an electrochemically enhanced low-pressure ultrafiltration system and method for reusing livestock and poultry breeding wastewater, addresses the characteristics of livestock and poultry breeding wastewater by employing an externally sourced constant voltage-driven electrochemically enhanced gravity-driven low-pressure ultrafiltration system. It can simultaneously achieve heavy metal reduction, antibiotic degradation, pathogen interception, inhibition of resistance gene transmission, and membrane fouling control under low-energy consumption conditions, while retaining nitrogen and phosphorus resources in the wastewater, ensuring safe reuse for agricultural irrigation.

The present invention discloses a split-type electrical connector with good waterproof and dustproof functions, which includes a male plug and a female plug, and is characterized in that: the male plug and the female plug are each provided with a split-connected male and female plug current-carrying member correspondingly suitable for plugging in; the male plug and the female plug are each provided with a split-connected male and female plug end cover correspondingly suitable for plugging in; the male plug and the female plug are also provided with waterproof sleeves at each connection part of the male and female plug housing. The beneficial effects of the present invention are: because the waterproof and foreign body-proof functions in the male and female plug design adopt a split-type structural design, the production process of each component thereof is simplified, the difficulty and cost of product manufacturing are reduced, the quality of each component is improved, and the male and female plugs have better sealing after being plugged in.

The utility model provides a coal mine surveying and mapping positioning instrument, which relates to the technical field of coal mine surveying and mapping positioning instruments and comprises a drill bit, a connector is fixedly mounted at the top end of the drill bit, a sampling box is inserted into the side edge of the connector, and a lifting ring with the same diameter as the top end of the drill bit is sleeved on the surface of the connector. A sealing cover used for covering a box opening in the side edge of the sampling box is fixedly installed on the inner side edge of the upper surface of the lifting ring, soil drilled out by a drill bit can be prevented from entering the sampling box through the sealing cover, and during sampling, the lifting ring can ascend under the connecting effect of a connecting plate by means of extension of two electric telescopic rods; the lifting ring ascends to push and remove soil accumulated near the connector upwards, so that no soil is accumulated on the side surface of the connector, and the sampling box smoothly extends out of the connector.

The invention discloses an oral care agent, and particularly relates to a composite material for the oral care agent, the composite material is of a core-shell structure, the core is porous silicon dioxide particles, povidone iodine is distributed in the pores of the porous silicon dioxide particles, and the shell is beta-cyclodextrin. The composite material can be directly used for oral care products such as toothpaste, mouth wash and dental floss, is safe, nontoxic and good in sterilization effect, povidone iodine can be effectively dispersed into internal pores of silicon dioxide through the design of a special structure, effective protection of povidone iodine is achieved, the stability of the antibacterial substance povidone iodine is improved, and the composite material is suitable for oral care products such as oral care products such as toothpaste, mouth wash and dental floss. The high effective iodine content is maintained, the rapid sterilization effect is achieved, a certain slow release effect is achieved, and the effective use time of the antibacterial agent is prolonged.

The utility model belongs to the technical field of coke grading, and particularly relates to a multi-stage sorting device for coke production, which comprises an obliquely arranged grading barrel, three screening plates with different pore diameters are sequentially arranged above the bottom wall of the grading barrel, four first discharge ports are arranged on one side of the grading barrel opposite to the ground, and four second discharge ports are arranged on the other side of the grading barrel. A rotating shaft is rotationally connected to the middles of the three screening plates, a driving part for driving the rotating shaft is assembled on the outer side of the grading barrel, the rotating shaft is sequentially provided with four sets of rotating parts, the four sets of rotating parts are located on the upper sides of the grading barrel and the three screening plates correspondingly, a cylinder is rotationally connected to the outer side of the grading barrel, and three second discharging openings are sequentially formed in the cylinder; the cylinder is connected with a transmission assembly, and supporting pieces are arranged on the lower side of the grading barrel and the supporting ring. According to the coke screening device, coke can be divided into four grades according to the block size of the coke, meanwhile, the coke can be conveniently discharged, and after the coke is discharged, the coke can be continuously screened.

The utility model discloses reinforced nylon particle production air-drying equipment which comprises a bottom plate, an air-drying box fixedly connected to the top of the bottom plate, feeding assemblies arranged at the front end and the rear end of the air-drying box, an auxiliary discharging assembly arranged in the air-drying box, an air-drying assembly arranged at the top of the air-drying box, a discharging box fixedly connected to the bottom of the bottom plate, and a stirring assembly arranged in the discharging box. Supporting legs are arranged at four corners of the bottom of the bottom plate. Compared with the prior art, the air drying box has the advantages that the standing time of nylon particles in the air drying box can be prolonged, the contact area of the nylon particles and air in the air drying box can be increased, the accumulation phenomenon is avoided, and the nylon particles can be prevented from blocking the discharging pipe through stirring and auxiliary discharging.

The utility model relates to grain drying equipment technical field discloses a multilayer drying mechanism based on grain dryer, including hot blast furnace and elevator seat, the top of hot blast furnace is provided with multilayer drying mechanism, and multilayer drying mechanism is used to carry out gradually drying to grain, the top of elevator seat is provided with inlet and outlet mechanism, and the bottom of multilayer drying mechanism is provided with circulating mechanism, the multilayer drying mechanism includes hot blast pipe, the front side bottom of hot blast pipe is communicated at the top right side of hot blast furnace, the rear side of hot blast pipe is connected with air regulator box, the rear side fixed connection of air regulator box has the fan, and the top communication of fan has the air supply pipe. In the utility model, the drying cavity formed by the slow recovery board is introduced into the two sides from the middle part of the drying bin through the hot blast, uniformly diffuses and contacts with the falling grain, realizes the uniform drying of grain, adapts the demand of different grain, improves the drying quality and efficiency, and reduces the grain breakage rate.

This invention relates to the field of weeding equipment technology, and proposes a weeding device for fruit tree seedling cultivation, including a frame, a mounting frame, a nozzle, a rotating shaft, and a seedling-covering belt. The mounting frame is mounted on the frame, and the nozzle is mounted on the mounting frame for spraying herbicides. Two rotating shafts are mounted on the mounting frame and rotate synchronously in the same direction. The two ends of the seedling-covering belt are respectively mounted on the two rotating shafts. After the rotating shafts rotate, the seedling-covering belt is wound from one rotating shaft to the other, and the seedling-covering belt is positioned above the seedlings to cover them. This technical solution solves the problem in existing technologies where sprayed herbicides easily come into contact with the seedlings.

The utility model discloses a dust-free drilling device for building construction, which relates to the technical field of dust-free drilling devices for building construction, and comprises a drilling gun, and is characterized in that the bottom of the drilling gun is fixedly connected with a handle, the right side of the handle is provided with a start button, the handle is positioned on the left side of the bottom of the drilling gun, and the right side of the drilling gun is provided with a fixing sleeve; a fixing block is fixedly connected to the bottom of the drilling gun and located on the right side of the bottom of the drilling gun, a sliding groove is formed in the right side wall of the fixing block, a first fixing rod is slidably connected to the inner wall of the sliding groove, and the top of the right side of the first fixing rod is fixedly connected with the fixing sleeve. The dust-proof drilling device has the advantages that the dust-proof drilling device is simple to use and convenient to operate, the dust-proof cover can be quickly detached after the drilling device is used for multiple times, accordingly, drill bits can be conveniently checked and replaced, dust can be collected, and the dust can be conveniently treated.

The invention relates to the technical field of sewage treatment, and discloses a method for treating chicken raising wastewater based on coupling of ultrasonic ozone and a sulfur autotrophic fungicide, which comprises the following steps: (1) performing ultrasonic-ozone combined pretreatment on the chicken raising wastewater; and (2) treating the effluent in an anaerobic reaction system containing a compound microbial agent and a sulfur-containing filler. According to the method, dephosphorization and wall breaking are enhanced through ultrasonic ozone, ammonia nitrogen is directly converted into nitrogen through the synergistic effect of the specially-made filler and the functional bacteria under the anaerobic condition, efficient nitrogen and phosphorus removal is achieved, the process is simplified, and operation is stable.

This utility model discloses an anti-clogging suction pipe structure for powder material suction and filling. It includes a feed pipe and an air inlet pipe, with the air outlet of the air inlet pipe connected and fixed to the wall of the feed pipe in a section with densely packed feed holes. This allows the powder material and the suction gas to form a certain solid-gas ratio within the section with densely packed feed holes before being conveyed in the feed pipe. This reduces the conveying resistance of the powder material and improves the pneumatic suction efficiency. Under undemanding operating conditions, it maintains a stable conveying state of the powder material without accumulation or blockage, improving the conveying efficiency, reducing energy consumption of pneumatic suction, and enhancing the reliability and stability of pneumatic suction. Furthermore, by installing an air inlet regulating valve in the air inlet pipe, the solid-gas ratio formed by the powder material and the suction gas can be adjusted to an optimal ratio suitable for the powder material and operating conditions.