6results about How to "Avoid clogging failure" patented technology

The present application relates to the field of asphalt mixture production equipment, and discloses an asphalt mixture stirring production equipment with heat energy recovery and a production method, the production equipment comprises a regenerated drying roller, a primary drying roller, a dust removal system, a preheating system, a cyclone dust collector and an incinerator; the gas outlet end of the regenerated drying roller is connected with the gas inlet end of the cyclone dust collector, the gas outlet end of the cyclone dust collector is connected with the incinerator, the incinerator is connected with the gas inlet end of the preheating system; the gas outlet end of the preheating system and the gas outlet end of the primary drying roller are both connected with the dust removal system, and the discharge end of the preheating system is connected with the feeding end of the primary drying roller.The present application has the following advantages: the high-temperature tail gas heat energy discharged from the incinerator can be converted into preheating energy of the primary aggregate, so that the tail gas pollution problem is solved thoroughly, the energy recycling is realized, and the equipment energy consumption and operation cost are effectively reduced.

The application belongs to the technical field of forging forming die, and specifically relates to an engine rocker arm forging forming die, which comprises a base, a lower die fixedly installed on the top of the base, a slide rod fixedly installed on each corner of the top of the base, a top plate fixedly installed on the top of the slide rod, a hydraulic push rod fixedly installed in the top plate, an upper die fixedly installed on the output end of the hydraulic push rod, and a positioning frame fixedly installed on the top of the upper die. The upper die is firstly lowered under no load, a connecting plate is synchronously pressed down, an oiling tank is driven to slide horizontally to the right along a limiting guide frame through a connecting shaft, the surface of a lower die cavity is automatically coated with lubricating oil by means of a bottom elastic oiling head, the upper die is reset after oiling, and the blank is placed and then lowered again to complete the lubricating coating on the surface of the blank synchronously, so that the lubricating timing is accurately matched with the forging rhythm, and the defects such as die sticking and surface tearing can be effectively reduced.

The utility model relates to wastewater treatment equipment technical field, concretely relates to a kind of printing and dyeing wastewater recovery device, including pool body, first baffle and second baffle are equipped in pool body, first baffle and second baffle divide pool body into water inlet pool, flocculator and settling tank, the upper portion of first baffle is equipped with filter grating, overflow launder is equipped on second baffle, the side surface of filter grating is equipped with the dredging plate that can reciprocatingly move in flocculator, dredging needle for dredging filter grating is equipped on dredging plate, the side surface of pool body is equipped with water inlet pipe connected with water inlet pool, the side surface of pool body is equipped with overflow outlet connected with settling tank. The interception of larger solid impurities, fiber and floating matter in wastewater by filter grating can significantly improve the flocculation reaction efficiency of wastewater after entering flocculator, reduce the dosage of reagent, and improve the operation stability and treatment effect of the whole printing and dyeing wastewater recovery device.

The utility model discloses an unpowered self-purification composite filter material tail water advanced treatment device, and belongs to the technical field of sewage treatment. Comprising a water inlet buffer tank, a drop aeration tank, a constructed wetland and a water outlet well which are sequentially communicated according to a downward stepped structure, a composite filter material reaction tank is further arranged between the drop aeration tank and the constructed wetland, and the composite filter material reaction tank is filled with a composite filter material for adsorbing and degrading pollutants; the drop aeration tank is communicated with the upper part of the composite filter material reaction tank through a water inlet pipeline, and the bottom of the composite filter material reaction tank is communicated with the constructed wetland through a water outlet pipeline. According to the utility model, the composite filter material unit is additionally arranged between the drop aeration unit and the wetland unit in the traditional unpowered treatment device, so that the problem of blockage caused by the fact that the conventional filter material is arranged at the bottom of the constructed wetland is solved, and the whole water purification capacity of the device can be further improved by adjusting the type of the composite filter material and the like.

The application relates to the field of oil drilling and borehole technology, and discloses a multistage ball-throwing type hydraulic variable-diameter while-drilling reamer, which comprises a shell, an upper joint and a lower joint, a mandrel body is slidably connected in the shell, the outer wall of the mandrel body is provided with mandrel guide rails with gradually decreasing outer diameters, the inner side of a rotary connecting blade wing in the shell abuts against the mandrel guide rails, a limiter is arranged on the bottom end of the mandrel body, a positioning block on the shell is slidably connected in a broken line-shaped groove on the outer wall of the limiter, a ball-throwing seat is slidably connected below the limiter, the two are drivingly connected through a shift pin and a groove structure, a plurality of claw bodies are arranged in an array on the inner wall of the ball-throwing seat, a reset base plate is arranged on the bottom end of the ball-throwing seat, a heavy spring is arranged below the reset base plate, and a collector is arranged in the lower joint. The mandrel guide rails are driven to go up and support the blade wing to expand the hole through ball-throwing pressure holding, the positioning block guides the limiter to rotate and shift gears and drives the claw bodies to spread and release pressure, the heavy spring is rebounded, multistage variable-diameter and automatic pressure release in single-trip drilling are realized.

The utility model discloses a unit feed inlet filtering device which structurally comprises a feed inlet, a plurality of groups of supporting iron sheets are welded in the feed inlet, the unit feed inlet filtering device further comprises a filtering net and a strong magnet, the filtering net is movably arranged in the feed inlet, and the bottom of the filtering net is movably connected with the supporting iron sheets in an abutting mode; the strong magnet is mounted at the circle center of the filter screen; a supporting iron sheet is welded in the feeding port, the filter screen of a simple structure is designed, a strong magnet is connected to the filter screen through a bolt, and the fixing hooks are used on the periphery to assist in fixing the position of the filter screen, so that non-ferrous material sundries such as hemp ropes can be filtered, the strong magnet can attract ironware, and the filtering effect is good. And sundries are prevented from entering the multifunctional material box through the feeding port to cause a blocking fault, and fixing and taking-out cleaning are easy. The utility model belongs to the field of electrolytic workshop units, and particularly relates to a filter device for a feed port of a unit.