41results about How to "Reduce legacy" patented technology

The invention relates to a method for enlarging, filling and supporting a coal-pillar-free mining roadway for fully-mechanized top coal caving, which comprises the following steps of: A, evenly mixing gravel and sand on a ground mixing plant; B, transferring the obtained mixture of the gravel and the sand, cement, flyash and additive to a storing part of an underground pump station; C, loading the materials in the step B to a mixer to be mixed evenly to obtain filling concrete; D, pumping the concrete obtained in the step C to a filling module, and filling along with the enlarging to ensure filling quality; E, forming a filling wall with an early strength in the filling module by the concrete, and demoulding after the filling wall reaches the supporting strength of a top plate; F, cleaning a filling pipeline, and pumping clean water to moisten the pipeline and test the pressure; and G, repeating the steps A-F until the filling is completed.

The invention provides an air filter used for an air blower device, easy to remove adhered dust to clean the filter and also easy to produce. In the air filter for collecting dust arranged to the suction part of an air conditioner or the like, the ribs 2 for constituting a frame part are formed to the surface on the side reverse to a dust collection surface X of the filter. By this constitution, when the dust adhered to the dust collection surface X of the filter is removed, dust can be removed by a cleaner or the like without being obstructed by the ribs for constituting a section. Therefore, the air filter reducing residue to be removed can be constituted and an air blow capacity is not lowered even after dust is removed.

The invention discloses mining supporting support equipment which comprises a middle hydraulic support device and end hydraulic support devices, wherein the middle hydraulic support device is used for supporting a mining working surface top plate, the end hydraulic support devices are located in troughs in two ends of a mining roadway and used for supporting the ends of a trough plate, the end hydraulic support devices are arranged at two ends of the middle hydraulic support devices respectively, a transition hydraulic support device is arranged between the end hydraulic support device at each end and the middle hydraulic support device, height of the middle hydraulic support device supporting top end of the middle hydraulic support device, the transition hydraulic support device supporting top end of the transition hydraulic support device and the end hydraulic support device supporting top ends of the end hydraulic support devices can be adjusted in the vertical direction, and the middle hydraulic support device supporting top end and the end hydraulic support device supporting top ends are arranged in flush. The invention further discloses a mining method used for the mining supporting support equipment to mine trough top coal in a fully mechanized coal mining face.

The invention relates to a water permeable, water storage and drainage sidewalk pavement structure which comprises a road base layer and further comprises a water permeable layer and drainage ditch bodies, the water permeable layer and the drainage ditch bodies are arranged on the road base layer, the drainage ditch bodies are located on the two sides of the water permeable layer, a hollow guide plate is arranged in the water permeable layer, and a water inlet hole and a water outlet pipe are arranged on the guide plate. The water inlet hole is formed in one side, deviating from the road base layer, of the flow guide plate; a water storage tank is arranged in the road base layer, the drainage ditch bodies are connected with the water storage tank through connecting pipes, a mounting layer is further arranged on the road base layer, a mounting groove is formed in the mounting layer, a water pumping device is arranged in the mounting groove, and the water pumping device comprises a water pump, a water inlet pipe and a water outlet hose; the water pump is set in the mounting groove, one end of the water inlet pipe is connected to the water pump, the other end of the water inlet pipe penetrates through the mounting layer and the road base layer and is inserted into the water storage tank, and one end of the water outlet hose is connected to the water pump. The problem that water resources are wasted due to the fact that rainwater is not recycled is solved.

The invention provides an electrolytic manganese residue ceramic, a preparation method thereof and a ceramic tile, and relates to the technical field of ceramics. The electrolytic manganese residue ceramic is mainly prepared from the following raw materials in parts by mass: 40-55 parts of electrolytic manganese residues, 10-15 parts of calcined limestone, 15-30 parts of ceramic waste residues and10-20 parts of fly ash. The electrolytic manganese residues, the fly ash and the ceramic waste residues are used as raw materials of the electrolytic manganese slag ceramic, so that cyclic utilization of the electrolytic manganese residues, the fly ash and the ceramic waste residues can be realized, the comprehensive utilization rate of the raw materials is improved, residue of the waste residuesin the environment is reduced, environmental pressure is effectively relieved, and the method has great significance for environmental protection.

The invention discloses a cleaning head for an electric rotating mop. The cleaning head comprises a disc and a plurality of cleaning bodies which are arranged under the disc, distributed at intervalsin the circumferential direction and bent in the same direction, wherein the bending direction of the cleaning bodies is consistent with the rotating direction of the cleaning head during work; one ends of the cleaning bodies are connected to the center of the disc; the spacing between every two adjacent cleaning bodies is gradually reduced from outside to inside; garbage on the ground is wiped and gathered by the cleaning bodies into the gap between every two adjacent cleaning bodies and clamped and kept in the gap between every two adjacent cleaning bodies. The cleaning head can be directlyused for replacing a circular mop cloth used by an existing product without changing the existing electric mop, dirt can be gathered, and the garbage left on the ground is reduced.

The invention discloses a filter, which is composed of a body, a sewage valve, a filter screen, a scraper, an inlet, an electric reducer, a pressure sensor, a signal converter, an outlet, a sealing top cover and a bracket, and the bracket is three The bottom edge of the uniform connector body, the center position of the bottom of the drain valve connector body, the center position inside the filter screen connector body, scrapers are set on both sides of the filter screen, the upper left side of the inlet connector body, and the lower right side of the outlet connector body , the upper right outside the signal converter connector body, the pressure sensor is located next to the signal sensor, the sealing top cover is connected to the top of the body through nuts, and the electric reducer is connected to the top of the sealing top cover. The invention improves the connection structure of the filter screen in the filter, so that when the filter is flushing the filter screen, the filter screen can realize the circumferential rotation movement, so that the cleanliness of the filter screen is higher, and the residue left in the filter screen is reduced. impurities to ensure the normal working efficiency of the filter.

The invention provides a mulberry picking machine with an improved structure, belonging to the technical field of agricultural equipment. The present invention includes a housing, the housing includesan outer shell plate and an inner shell plate, the inner shell plate is located on the inside of the outer shell plate, A mounting cavity is formed between the inner shell plate and the outer shell plate, the left and right sides of the mounting chamber are provided with a plurality of air collecting boxes, the left and right side walls of the inner shell plate are vertically provided with a plurality of long sliding slots, A storage chamber is arranged in the gas collecting box, A supercharge air pump is arranged at that top of the out shell, A supercharge air pump is communicated with a storage cham through an air pipe, A plurality of through holes are arranged on the side wall of the gas collecting box close to the inner shell plate, The through hole is communicated with the connectingpipe, the other end of the connecting pipe extends out the sliding slot hole and the end part is provided with an air jet head, a plurality of air holes are arranged on the air jet head, a driving mechanism capable of sliding the air collecting box up and down along the sliding slot hole is arranged in the mounting cavity, and a receiving mechanism capable of receiving dropped mulberry is arranged on the left and right sides of the inner shell plate. The invention blows the mulberry off through the non-contact airflow to ensure the integrity of the mulberry.

The invention discloses a cleaning device and a cleaning method capable of grinding edges at multiple angles and used for ceramic tile machining. The cleaning device comprises a bottom plate and a cleaning pool, wherein a supporting frame is fixedly installed at the top of a vertical plate, a U-shaped frame is fixedly installed at the bottom of a hydraulic telescopic rod, grinding discs are fixedly installed at the two sides of a grinding rod, and a brush is fixedly installed at the bottom of a brush plate; and an air box communicates with a fan through an air conveying pipe, an air outlet port of the fan communicates with an air pipe, a fixing frame is fixedly installed at the top of the bottom plate, an air outlet disc is fixedly installed at the inner side of the top of the fixing frame, a spring is fixedly installed at the outer side of an inclined rod, a plurality of vertical blocks are fixedly installed at the outer side of a conveying belt, and brick blocks are movably installed at the outer side of the conveying belt. Through the arranged grinding rod, grinding disc and U-shaped frame, when the device is used for grinding ceramic tiles, the ceramic tile grinding effect can be better improved, and the ceramic tile grinding area of the device is increased, so that the ceramic tiles cannot be affected by conveying in the conveying process, the ceramic tile grinding area can be increased, and the service life of the ceramic tiles is prolonged.

The invention discloses an extrusion forming type rubber shaping die which comprises a valve elastic rubber sealing pad die body, a raw material feeding opening, a core die body, a core die fixing plate, locating holes, locating pins, an extruding fixing framework, a shield pipeline, a connecting plate and a rubber elastic sealing pad. The left end of the valve elastic rubber sealing pad die bodyis connected with the raw material feeding opening. The valve elastic rubber sealing pad die body is connected with the core die body. The core die body is connected with the core die fixing plate. The upper locating hole and the lower locating hole are formed outside the core die fixing plate. The locating holes are provided with the locating pins. The extrusion forming type rubber shaping die has the beneficial effects that the structure is simple, safety is high, the production efficiency is high, few cylinder residue materials obtained after extruding are left, and resources are saved.

The invention belongs to the technical field of metal-glass packaging and relates to an assembling plate for a metal guide pin connector. The assembling plate comprises a first assembling plate and a second assembling plate, wherein sintering sediment slots are distributed in an array form in a graphite jig bottom mold; bulges are distributed in the array form on the lower plate surface of the first assembling plate; through holes are formed in the bulges; cylindrical limiting bolts are arranged on the upper plate surface of the first assembling plate; the limiting bolts and the through holes are distributed in a staggered form; cylindrical sediment holes and cylindrical limiting through holes are distributed in the array form on one surface of the second assembling plate; a metal shell is arranged in the sintering sediment slots of the graphite jig bottom mold; welding metal rings are arranged in the cylindrical sediment holes; the sintering sediment slots are correspondingly clamped with the bulges; the metal shell welding holes, the through holes and the cylindrical sediment holes are successively and correspondingly communicated with each other; the limiting bolts are inserted into the limiting through holes. The assembling plate has the advantages of reduction of splashing and adhering phenomena after sintering, low neglected loading rate, high assembling accuracy, high product yield, reasonable assembling process, suitability for large-scale production and high economic benefit.

The invention relates to the technical field of egg shelling equipment, and discloses an urban young nutrition breakfast machine. The urban young nutrition breakfast machine e comprises a shell I anda feeding hopper, wherein the right side wall of the shell I is fixedly connected with a right box body II; a buffer mechanism is arranged in the shell I; a heat recovery device is arranged on the outer bottom surface of the shell I; a constant-temperature device, a rotating device and a knocking device are arranged in the box body II; the knocking device comprises a vertical plate I, a column body II, a column body III, a rotating shaft II, a gear, a gear belt, a spring III, a transverse column, a vertical plate II, a screw I and a screw II; the vertical plate I is fixedly connected with theinner bottom surface of the box body II; the column body II is fixedly connected with the column body III and is rotationally connected with the inner bottom surface of the box body II; the column body II is driven by the belt to rotate so as to drive the column body III to rotate, the column body III is composed of a cylinder and a protruding column, rotation of the column body III can drive thetransverse column to discontinuously knock on the front wall face of the vertical plate II from front to back, eggshells are broken, then the eggshells and protein are separated, and eating is convenient.