2869 results about "Agricultural Product Processing" patented technology

The invention relates to the technical field of drying equipment, in particular to clothing cloth drying equipment. The clothing cloth drying equipment comprises a box body, a discharging shaft for discharging cloths, a drying module, an ironing module, an air-drying module, a rolling shaft for rolling the cloths and a controller. The top of the left side of the box body is provided with a storinghole for storing the cloths, a damping piece mounted at the bottom of the box body is arranged under the storing hole, and the discharging shaft is vertically mounted on the damping piece. The dryingmodule is used for drying the cloths, the ironing module is used for ironing the cloths, and the air-drying module is used for air-drying the ironed cloths. The rolling shaft is located on the rightside of the air-drying module, a material taking hole for taking out the cloths is formed in the top of the box body over the rolling shaft, the rolling shaft is driven through a rolling motor, and the rolling motor is electrically connected with the controller. The clothing cloth drying equipment is mainly suitable for being used in a clothing manufacturing shop and has the characteristics that the size is small, the weight is small, the price is low, and energy consumption is little.

A surround hot air slow drying device and a three-stage baking method for pet food processing are provided. The surround hot air slow drying device for pet food processing includes a drying box. A hot air drying unit is provided at an inner bottom of the drying box, a circulating conveying unit is provided inside the drying box, a plurality of drying frames are evenly distributed on the circulating conveying unit, a material turning mechanism is provided inside the drying frames, and a positioning component is provided inside the drying box. The material turning mechanism cooperates with the positioning component to turn the raw materials in the drying frames.

The invention discloses a roll-to-roll cleaning control method and system for a flexible circuit board electronic structural member, and relates to the technical field of electronic manufacturing, and the method comprises the steps: carrying out the partitioning processing of a to-be-cleaned member, and obtaining a thin region and a thick region; the drying cavity is partitioned on the basis of the thin area and the thick area, and a partitioned temperature control method is constructed; a dehumidification drying module is placed, and a hot air drying method is obtained based on a chilled mirror dew-point instrument; the roll-to-roll cleaning control method is used for solving the problems that in an existing roll-to-roll cleaning control method for the flexible circuit board electronic structural part, differential temperature control is not carried out on a thick area and a thin area, and the influence of environment humidity in a drying cavity on the drying effect is not considered; the problems that a thin plate is overheated after being dried, water in a thick plate is not completely evaporated, watermarks which cannot be wiped appear on the surface of the electronic structural part, and then the practicability of the cleaned electronic structural part is affected are solved.

The invention relates to the technical field of cleaning equipment, and particularly discloses a steam cleaning machine. The cleaning machine comprises a cleaning machine body, a steam generation system, a cleaning agent conveying device, a waste water suction device, a hot air device and a control device are arranged in the cleaning machine body, the cleaning machine body is connected with a multifunctional integrated spray head through a multi-channel connector and a multi-channel connecting pipe, and the multifunctional integrated spray head is of a multi-layer hierarchical structure. The steam nozzle, the cleaning agent nozzle and the spherical suction head are sequentially arranged from inside to outside; during use, steam and a cleaning agent cooperatively soften and decompose dirt, the wastewater suction device sucks sewage through a spherical suction head of the spray head, the hot air device blows out hot air for drying, and all the systems are controlled by the control device. The cleaning device integrates the functions of steam cleaning, cleaning agent assisting, waste water sucking and hot air drying, achieves closed-loop cleaning, is convenient to operate and high in efficiency, and meets the cleaning requirements of floors, furniture, tabletops, household appliance gaps and the like in families, hotels and other scenes.

The utility model discloses an acid-proof ceramic tile intelligent continuous drying device which comprises a drying bin and a discharging conveyor, and a first conveyor, a second conveyor and a third conveyor are installed in the drying bin. The acid-resistant tile blank drying device has the beneficial effects that the lifting table and the weighing sensor are arranged, in the hot air drying process, the weight of the acid-resistant tile blank is continuously reduced, when the acid-resistant tile blank moves to the position above the lifting table, the electric push rod extends and pushes the acid-resistant tile blank to move upwards, and then the first electric cylinder, the second electric cylinder, the third electric cylinder and the fourth electric cylinder are shortened; and when the weight reaches a set value, the first electric cylinder and the second electric cylinder extend, so that the acid-resistant ceramic tile blanks incline towards the discharging conveyor, the acid-resistant ceramic tile blanks slide along the balls to penetrate through the cloth curtain to reach the top face of the discharging conveyor and move out of the drying bin, and automatic drying detection and discharging of the acid-resistant ceramic tile blanks are completed. The trouble of manual detection is saved, and the use convenience is improved.

The invention discloses an efficient glass fiber plate cleaning and drying process which comprises the following steps: S1, pretreatment: performing appearance inspection on a to-be-cleaned glass fiber plate, and removing unqualified plates of which the surfaces are obviously damaged and cracked; s2, pre-cleaning: putting the glass fiber plate subjected to primary treatment into an ultrasonic cleaning tank, injecting clear water into the cleaning tank, enabling the liquid level of the clear water to completely submerge the glass fiber plate, starting an ultrasonic generator at the same time, and separating dust, loose chippings and other impurities on the surface of the glass fiber plate through the cavitation effect of ultrasonic waves to complete pre-cleaning; and S3, chemical cleaning, wherein after pre-cleaning is completed, the glass fiber plate is fed into a chemical cleaning tank containing alkaline pre-cleaning liquid. According to the technology, multiple cleaning procedures are combined with ultrasonic waves, chemical reagents and nano-particles, vacuum and hot air drying are matched, efficient cleaning and rapid drying of the glass fiber plate are achieved, few impurity residues exist, the water content is low, the surface flatness is good, parameter adaptability is high, energy is saved, environment friendliness is achieved, and the automation degree is high.

The invention relates to the field of waste plastic recycling, and discloses plastic film recycling equipment which is used for cleaning and recycling broken plastic films. Comprising a cleaning pool, an inclined conveying belt is arranged at the tail end of the cleaning pool, water filtering holes are formed in the conveying belt, and an extrusion component is arranged on the conveying belt; and the fished-out fragments are extruded by the extrusion part, so that the drainage speed of the fragments is accelerated, and the subsequent recovery processing step is ensured to be smoothly carried out. A traditional conveying belt drains water only by means of gravity, and water in wet plastic fragments and between layers is difficult to effectively discharge, so that the water yield is large. The intermittent extrusion action is introduced in the operation cycle of the conveying belt, and the'wet cake 'structure formed by the surface tension of a water film of the wet material is destroyed in the squeezing process, so that the moisture is easier to release, the initial moisture content of the material is greatly reduced, the load of subsequent centrifugal dewatering or hot air drying equipment is effectively reduced, and the energy consumption and the operation cost are remarkably reduced.

The invention belongs to the technical field of sandy soil reinforcement, and relates to a sandy soil reinforcement method combining modified chitosan film coating and cementation with biomimetic mineralization and application, the sandy soil reinforcement method comprises the following steps: S1, chitosan is subjected to swelling, alkalization, carboxymethylation and refining treatment to obtain modified chitosan; s2, respectively preparing a calcium chloride solution and a sodium carbonate solution with the same concentration; a calcium chloride solution is a cementing solution A; adding modified chitosan into a sodium carbonate solution, and uniformly stirring to form a cementing solution B; s3, the cementing liquid A is sprayed to the sandy soil, then the cementing liquid B is sprayed, and primary cementing is completed; carrying out circulating cementing for 5-20 times according to the spraying mode; and then air drying is conducted to complete sandy soil reinforcement. According to the invention, the agglomeration among calcium carbonate particles is enhanced by utilizing the cementing, film covering, mineralized crystal form adjusting and filling coupling effects of the modified chitosan, so that the calcium carbonate particles form effective cementing connection among sand particles, thereby improving the mechanical properties of the sand.

The utility model discloses a refrigeration type air dryer, which belongs to the technical field of air drying devices and comprises a cooling cylinder, an air inlet is arranged on the right lower side of the outer end of the cooling cylinder, and an air outlet pipe is fixedly mounted at the upper end of the cooling cylinder. A temperature returning system is mounted in the cooling cylinder; the temperature returning system comprises a baffle ring and a temperature returning heating pipe; an evaporation system is further installed in the cooling barrel and arranged in the temperature returning system. By means of the mode, gas communication of the gas flowing area and the pretreatment heating area is effectively isolated; and an inlet of the evaporation system is formed in a gas flowing area, so that the evaporated and cooled gas is heated, and the air drying effect of the device is further enhanced.

The invention relates to the technical field of food processing, in particular to a drying device for marinated egg packaging treatment and a using method thereof.The drying device comprises a conveying mechanism, and a drying mechanism is arranged on the front side of the conveying mechanism. Reciprocating linear motion of the storage frame is matched with the synthetic fiber cloth belt, intermittent discharging and stable conveying of marinated eggs are achieved, direct collision and damage during drying are avoided, the synthetic fiber cloth belt is porous, large in specific surface area and capable of adsorbing moisture on the surfaces of the marinated eggs and reducing humidity, the drying air outlet plate reciprocates, hot air evenly covers the marinated eggs, and drying efficiency is improved. A traditional device is low in drying efficiency and long in drying time due to design limitation of discharging and a conveying belt, the device shortens the drying period and improves the production efficiency through continuous movement of a cloth belt and reciprocating hot air drying of an air outlet plate, and the risk of cross contamination is reduced through the design that the cloth belt adsorbs moisture and is easy to clean.

The invention relates to the technical field of food kelp processing, and provides efficient air-drying equipment and method for kelp production, the efficient air-drying equipment comprises a hot air circulation bin, a circulation moving mechanism, a hanging module, an unhooking module and an air-drying frame, the circulation moving mechanism comprises a driving part, a transmission shaft, a gear and a transmission belt, and the gear is fixedly arranged on the surface of the transmission shaft; the driving part is used for controlling the transmission shaft to rotate, the inner side of the transmission belt is in transmission connection with the gear, the hanging module comprises a hook, inclined faces and a movable pin, the movable pin is fixedly connected to a hook body of the hook, the inclined faces inclining towards the component are arranged on the two sides of a hook groove of the hook, and the hook is used for hanging rope rings for binding kelp. The unhooking module comprises a limiting frame and a telescopic air cylinder, the telescopic air cylinder is arranged between the air drying frame and the limiting frame, and a hook body of the hook can make contact with the limiting frame, so that smooth unhooking is guaranteed, and the function of automatically collecting the dried kelp is achieved.

The present invention relates to a novel drying rack device. The device is designed to save time and effort when cleaning and sterilizing instruments, cassettes, tools, and / or accessories. The device comprises a countertop drying rack that sits on a tray. The countertop drying rack comprises a plurality of compartments that can be round and / or flat, with a plurality of drain holes for air drying wet instruments. Further, the tray below the rack collects water runoff for safe disposal and to allow the instruments to air dry. The device keeps instruments and tools organized, different kits separated, allows instruments to dry, and decreases risk of injury and exposure to bloodborne pathogens.

The utility model discloses a polypropylene multi-unit collaborative devolatilization system, which belongs to the technical field of devolatilization in polypropylene production process, and comprises a polypropylene powder solid-phase devolatilization unit, a polypropylene powder solid-phase devolatilization unit, a polypropylene powder solid-phase devolatilization unit, a polypropylene powder solid-phase devolatilization unit and a polypropylene powder solid-phase devolatilization unit, the extrusion granulation devolatilization unit comprises an extruder and a granulator, an outlet of the powder collecting tank is connected with a feed port of the extruder, and an outlet of the extruder is connected with the granulator; the granule devolatilization unit comprises a hot air drying stock bin, and an outlet of the granulator is connected with an inlet of the hot air drying stock bin; an outlet of the hot air drying bin is used for being connected with a packaging production line. According to the melt devolatilization system disclosed by the utility model, the batch-type vacuum dryer is additionally arranged, so that the modification of a core equipment double-screw extruder is reduced, the process complexity of the melt devolatilization system is obviously reduced, the devolatilization efficiency is improved, and volatile components can be completely removed.

A dishwasher includes a tub having a top wall extending between opposing side walls. The tub defines a washing chamber. A dishrack operable between a stowed state within the washing chamber and a deployed state extending at least partially out of the washing chamber. An air drying system is coupled to the tub and includes a housing coupled to the top wall of the tub. The housing extends into the washing chamber proximate the dishrack and defines an air inlet. An air knife coupled to the housing and extending along a width of the washing chamber proximate to the top wall of the tub. The air knife defines a slit. A blower operably coupled to the air knife is configured to draw air through the air inlet and direct the air through the slit of the air knife to generate an air curtain across the width of the washing chamber.

The utility model relates to a sponge odor removing system, which solves the problems that a natural ventilation odor removing method in the prior art occupies a large amount of warehouse space, is not favorable for controlling sponge production and processing cost, is poor in odor removing effect and the like, and adopts the technical scheme that the sponge odor removing system comprises a transmission mechanism, the sponge cleaning device is characterized by further comprising a washing mechanism and an air drying mechanism which are matched with the conveying mechanism, the conveying mechanism is used for conveying sponge, the washing mechanism is used for cleaning the sponge to remove odor, and the air drying mechanism is used for drying the sponge. The device has the advantages that water washing and air drying can be carried out through the water washing mechanism and the air drying mechanism to achieve rapid odor removal, the odor removal effect is good, adverse effects caused by long-time storage of a large number of sponges in a warehouse can be avoided, the sponge delivery efficiency can be greatly improved, the occupied space of the sponge storage warehouse can be reduced, and the warehouse space utilization rate is increased; the cost of the sponge is reduced, so that the market competitiveness of related products of the sponge is improved.

The invention discloses hydrogel bio-ink, a preparation method of the hydrogel bio-ink, a 3D printing biodegradable airway stent and application of the 3D printing biodegradable airway stent. The preparation method comprises the following steps that S1, lung tissue is subjected to freeze thawing, slicing, sequential decellularization of SDS and TritonX-100, air drying, smashing and cryopreservation, and a lung extracellular matrix is obtained; s2, performing sterilization and pepsin treatment on the lung extracellular matrix prepared in S1 to obtain a pretreated lung extracellular matrix; and S3, mixing methyl propionylated gelatin and an alginate solution, pouring the mixture into solid gel, gelatinizing the solid gel, and adding the pretreated lung extracellular matrix to prepare the hydrogel bio-ink. The prepared pig lung acellular extracellular matrix does not have an obvious nuclear structure, and DNA (Deoxyribonucleic Acid) determination shows that the concentration of an acellular group is obviously reduced (P is less than 0.01); along with the increase of the dECM concentration, the porosity is reduced, and the degradation time is prolonged; the airway stent is printed in a 3D biological printing mode, no obvious cytotoxicity (P is larger than 0.05) exists in a cytotoxicity experiment, and the mechanical property part of the airway stent is similar to that of a silicone stent.

The present invention relates to the field of electric power auxiliary apparatuses. Disclosed is a transformer breathing drying device, comprising a drying mechanism which comprises a bottom plate, a silica gel tank located on one side of the surface of the bottom plate, a heating plate located on the inner wall of the silica gel tank, an air inlet pipe passing through one side of the silica gel tank, an air exhaust pipe passing through the other side of the silica gel tank, a dehumidification pipe passing through the top portion of the silica gel tank, a condensation pipe communicated with one end of the dehumidification pipe, and a collection box located at one end of the condensation pipe. On the basis of the switching between the air drying state and the silica gel drying state, and in combination with pressure changes in the silica gel tank during heating, the present invention can achieve automatic opening of an opening and closing member and automatic closing of an air inlet partition member and an exhaust partition member, thereby enabling heating and drying of water vapor in silica gel particles, and enabling smooth discharge of the evaporated water vapor. This process eliminates the need for disassembly of the silica gel tank and replacement of the silica gel particles, allowing the silica gel particles to be recycled and reused.

The invention discloses an electrode slurry dynamic curing method. Rapidly heating a current collector-slurry interface to 100-120 DEG C by adopting electromagnetic induction, and triggering adhesive crosslinking and thermal expansion microspheres to generate pre-compressive stress; stress is relieved through phase change microcapsules in the hot air drying process of 70-90 DEG C; and finally, curing is completed at the temperature of 110-130 DEG C. The electrode slurry comprises thermal expansion microspheres and phase change microcapsules; the initial expansion temperature of the thermal expansion microspheres is 75-105 DEG C, and the phase change temperature of the phase change microcapsules is 45-65 DEG C; by reversing a traditional curing path and combining thermal expansion microspheres and phase change microcapsules with specific temperature response, the problems of demolding and cracking caused by negative electrode drying stress are solved, the interface integrity is remarkably improved, and the cycle life is remarkably prolonged.

The invention discloses a water-based paint composition of a fingerprint-resistant color coated steel plate and a preparation method of the water-based paint composition, and relates to the technical field of fingerprint-resistant coating materials and functional water-based paint compositions.The water-based paint composition comprises a functional paint composition system composed of water-based film-forming resin and a poor-polarity block type surface conditioning agent; the water-based coating composition is applied to the surface of a metal base material in a roller coating, spraying or blade coating mode, and the oriented migration behavior of an oleophobic chain segment is excited through heat treatment; and the coated steel plate is dried and cured, preferably, a hot air drying or hot-pressing crosslinking mode is adopted, and an oleophobic film layer is prepared on the surface. The method provided by the invention ensures that the system has stable dispersibility and migration responsiveness, realizes spontaneous construction of an oleophobic structure, improves the interface specificity of a film layer, and improves the hydrophobicity and fingerprint pollution resistance of the surface of the steel plate, so that the colored coating has both decoration and functionality, and is suitable for being used in the field of steel plates. The double requirements on appearance stability and anti-pollution performance in practical application are met.

The invention discloses a low-residue electrostatic powder automatic spraying system for a medical equipment structural part, and relates to the technical field of electrostatic spraying equipment. The system comprises a machining platform and a spraying chamber, a U-shaped communicating opening and a glass window are arranged in the middle section of the spraying chamber, and a hoisting conveying assembly, a spraying pretreatment assembly, an electrostatic spraying assembly, a spraying aftertreatment assembly and a hot air drying assembly are integrated in the spraying chamber; the hoisting conveying assembly achieves automatic transfer and posture adjustment of the structural parts through a driving rotating roller and a steering driving motor. The electrostatic spraying assembly adopts three symmetrical swinging spraying arms, and is matched with rotation of a rotating spraying box and movement of a lifting spraying seat to realize all-directional dead-corner-free spraying; a spraying and rolling brush composite cleaning process is adopted in pretreatment, and infrared curing and hot air drying are combined in aftertreatment. The system is high in integration degree, the spraying quality and the operation efficiency can be remarkably improved, the field occupancy rate is reduced, and the system is suitable for large-scale spraying operation of medical equipment structural parts.

The utility model discloses a dry-method gravel processing and desilting system, which relates to the field of gravel processing and desilting, and comprises a coarse crushing workshop and a semi-finished product bin, and the coarse crushing workshop is provided with a material inlet; the heavy plate feeder is arranged at one end, close to the material inlet, in the coarse crushing workshop, and heavy plate feeder striker plates are arranged on the two sides of the heavy plate feeder; and the multiple mud brushing units are arranged on the two baffle plates of the heavy plate feeder correspondingly and used for removing mud from the passing sand and stones. According to the scheme, the desilting effect on gravel is good, water washing is not needed in the desilting process, meanwhile, the gravel can be rapidly air-dried, soil on the surface of the gravel is cleaned through a material brush, soil on the gravel conveyed to a roller screen is further screened out through the roller screen, and the desilting effect is enhanced; and a plurality of roller screen compressed air nozzles are arranged, so that the surface of the gravel can be further subjected to mud removal in the mud screening process.

The invention relates to the technical field of drying engineering, in particular to an intelligent temperature and humidity regulation and control system in the hot air series drying process of hippocampus, which comprises an internal moisture migration state real-time characterization module used for collecting the real-time total weight of hippocampus batches and calculating the internal moisture migration flux; the microwave hot air phase change switching control module is used for receiving the internal moisture migration flux, resolving the flux change rate of the internal moisture migration flux, constructing phase change switching conditions and stopping microwave output and starting the hot air drying potential dynamic balance regulation and control module when the phase change switching conditions are met; the hot air drying potential dynamic balance regulation and control module is used for receiving the internal moisture migration flux, calculating a dynamic target external evaporation rate set point and resolving a controller output signal used for regulating hot air parameters; the problems that the contradiction between the drying efficiency and the quality of the hippocampus is solved, and the internal state of materials cannot be sensed through traditional control are solved.

The invention discloses a rubber particle preparation method based on recycled tennis balls, an environment-friendly runway construction method and an environment-friendly runway, and belongs to the field of runway construction.The method comprises the following steps that Sa1, the recycled tennis balls with impurities removed are put into a smashing machine at a constant speed, and surface felt and a rubber inner core are smashed and separated through the smashing machine; sa2, disinfection and washing are carried out; sa3, separating the fibers from the rubber particles; sa4, naturally air-drying the fibers and the rubber particles; sa5, classifying and screening; and Sa6, classifying, sealing and storing. By the adoption of the rubber particle preparation method based on the recycled tennis balls, the environment-friendly runway construction method and the environment-friendly runway, vulcanized rubber resources in the waste tennis balls can be efficiently recycled, meanwhile, high-valued application of the resources is achieved through the following environment-friendly runway construction steps, and a complete technical closed loop of recycling, preparation and application is formed.

The invention discloses a preparation method of a high-quality solid welding wire. The preparation method comprises the following steps of S1, raw material selection and pretreatment, S2, a drawing forming process, S3, surface treatment, S4, aftertreatment and finishing, S5, quality detection and control and S6, packaging and storage. Before work starts, raw materials are selected, low-carbon steel is selected, the purity of S is controlled to be smaller than or equal to 0.010%, the purity of P is controlled to be smaller than or equal to 0.015%, the size is controlled to be phi 5.5-6.5 mm, then oxide skin is removed through sulfuric acid for 5-10 min, after flushing is conducted through high-pressure water, residual acid is neutralized through alkali liquor, corrosion is prevented, then hot air drying is conducted at the temperature of 100-120 DEG C, it is guaranteed that no water exists on the surface, and the low-carbon steel is obtained. According to the method, the raw materials are pretreated, so that the cleanliness of the raw materials is improved, the production quality of the thick solid welding wire is improved, then the raw materials are smelted after being pretreated, and then a mixture of rare earth, deoxidized silicon, alloy vanadium and copper phosphorus tungsten carbide is added according to different environment requirements so as to increase the variety of the welding wire.

The application discloses a process for producing a fragrance-releasing shaving board by using agarwood extraction residues, and comprises the following steps: crushing the agarwood residues, naturally air-drying, and obtaining initial raw materials; taking the initial raw materials that cannot pass through a 20-mesh sieve as shaving board core layer raw materials, and taking the initial raw materials that can pass through a 20-mesh sieve as shaving board surface layer raw materials; uniformly spraying an adhesive into the shaving board core layer raw materials, uniformly stirring, and obtaining a mixture one; uniformly spraying the adhesive into the shaving board surface layer raw materials, uniformly stirring, and obtaining a mixture two; uniformly laying and pre-pressing the mixture two, the mixture one and the mixture two in sequence to obtain a pre-pressed board blank; hot-pressing the pre-pressed board blank by using a hot-pressing process; cooling and curing the hot-pressed board blank, and obtaining the fragrance-releasing shaving board. The process uses the agarwood residues as raw materials to prepare the long-lasting fragrance-releasing shaving board, and the prepared board has good physical and mechanical properties, thermal stability and long-lasting fragrance-releasing performance.

The utility model discloses a centrifugal spin-drying type automatic slide dyeing machine which comprises a machine table, a dyeing operation area is arranged in the machine table, a slide dyeing frame placing area, a band liquid displaying area, a band stopping liquid displaying area, a dyeing liquid area, a cleaning area and a centrifugal spin-drying area are arranged in the dyeing operation area, a plurality of slide dyeing grooves are formed in the slide dyeing frame placing area, and a plurality of slide dyeing grooves are formed in the centrifugal spin-drying area. The bottom of the slide staining groove is hollowed out and is provided with a fan, a slide staining frame is placed in the slide staining groove, and a plurality of glass slide placing positions are arranged in the slide staining frame; a centrifugal device is arranged in the centrifugal spin-drying area, and is provided with a clamping groove for clamping the slide dyeing frame. According to the application, the fan is arranged at the bottom of the slide dyeing groove in the slide dyeing rack placement area, so that the glass slides can be air-dried, the centrifugal device is arranged in the centrifugal spin-drying area, the slide dyeing racks are clamped in the centrifugal device, the glass slides on the slide dyeing racks can be centrifugally spin-dried, high-temperature drying is not needed, the stability is higher, non-uniform heating cannot be caused, and the production efficiency is improved. And the drying efficiency can be improved by combining the air-drying mode and the centrifugal spin-drying mode.

The invention relates to a cleaning method and device for a quartz furnace tube in the CVD deposition process and the like. The method comprises the steps that the quartz furnace tube is placed into a cleaning tank and driven to roll through a roller assembly; sequentially spraying low-concentration acid liquor and high-concentration acid liquor to form deposited acid liquor which at least immerses part of the furnace tube, and starting the ultrasonic device to conduct pulse type ultrasonic waves after the deposited acid liquor reaches the standard; spraying low-concentration acid liquor; after operation is stopped, deposited acid liquor is filtered and recycled to a low-concentration area of the acid storage tank; and finally cleaning and air-drying. Through cooperation of gradient pickling and pulse type ultrasonic waves, surface layer loose sediments are efficiently dissolved through low-concentration acid liquor, deep layer stubborn sediments are subjected to ultrasonic activation and then fully react with high-concentration acid liquor, and finally a matrix is neutralized through the low-concentration acid liquor, so that the high sediment removal rate is guaranteed, furnace tube corrosion is avoided, the service life of the furnace tube is prolonged, and the service life of the furnace tube is prolonged. And meanwhile, resource waste and environmental protection pressure are reduced through acid liquor recycling.

The utility model discloses a repose angle tester which comprises a support, a funnel, a measuring table and a water adding device. The support comprises a base, a vertical rod arranged on the base and provided with scales on the surface, and a transverse rod slidably connected with the vertical rod. The funnel is connected with the cross rod, and the position of the funnel is adjusted by sliding the cross rod in the vertical rod; the measuring table is arranged on the base, and the center of the detection surface of the measuring table is aligned with the center of the funnel; the water adding device comprises a water tank, a water tank sleeving the outer side of the measuring table, and a guide pipe connecting the water tank and the water tank; in addition, a scale is further arranged below the discharge hole of the funnel; and the scale is aligned with the center of a conical tip formed by the sample on the detection surface. According to the technical scheme, the water adding device and the ruler are arranged, so that the stability of the sample in the measuring table can be kept to the maximum extent in the two states under the condition that the repose angle measurement of the sample in the air drying state and the repose angle measurement of the sample in the underwater state are met at the same time, and the test error is reduced.

The utility model discloses a concrete additive drying device which comprises a processing box, the side wall of the processing box is communicated with a feeding hopper, an air drying opening is formed in the processing box, the inner side wall of the air drying opening is fixedly connected with a fan cover, the outer side wall of the fan cover is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating rod. A plurality of sets of fans are fixedly connected to the outer side wall of the rotating rod located in the fan cover, the rotating rod penetrates through the fan cover and the side wall of the treatment box and is fixedly connected with a rotating disc, the rotating disc is connected with a traction rope by driving a linkage mechanism, the traction rope is connected with a filter plate, and the filter plate is slidably connected with the inner side wall of the treatment box. A collision mechanism is arranged at the top in the treatment box, through the structural design of linkage of multiple sets of fans and a rotary disc, it is guaranteed that concrete additives in the treatment box are evenly dispersed, and the phenomenon of local overheating or insufficient drying is prevented.

The utility model relates to a uniform and efficient grain storage air drying bin, and belongs to the technical field of grain air drying. The problem that the grain air-drying effect generated by a traditional air-drying bin is not uniform is solved. Comprising a frame, a material blocking net and a rhombus cylinder, the material blocking net is arranged on the frame, and a grain storage bin is defined by the material blocking net; a grain inlet area, a grain storage area and a flow guide area which are sequentially communicated from top to bottom are arranged in the grain storage bin, and a grain inlet is formed in the top of the grain inlet area; the horizontal section size of the flow guide area is gradually reduced from top to bottom, and a grain outlet is formed in the bottom of the flow guide area; a plurality of rhombic cylinders are uniformly distributed in the grain storage bin, the two ends of each rhombic cylinder are connected with the frame, and the two ends of each rhombic cylinder abut against the material blocking net; the interior of the grain storage bin is divided into net-shaped grain storage spaces through the multiple rhombic barrels. The rhombic cylinder is of a thin-wall cylindrical structure, and a front-back through air duct is arranged in the rhombic cylinder; a plurality of ventilation holes are distributed in the side wall of the rhombic cylinder, and the air channel is communicated with the ventilation holes. The grain storage and air-drying device is used for storing and air-drying grains.