52results about How to "Reduce the number of punch holes" patented technology

The invention discloses a method for in-situ leaching of rare-earth ores from a weathering crust elution-deposited rare earth ore. The method comprises the following steps: holes are drilled in an ore body and drilled from a humus layer, a completely weathering layer to a half weathering layer of the ore body, a guide pipe with an opened upper part and an opened lower part is inserted into the holes and reaches the half weathering layer, and an ore leaching liquid is injected into the guide pipe; a diversion trench is formed in a bedrock to be used for guiding the rare earth leaching liquid into a liquid collecting reservoir; holes are distributed in a net shape along the ridge of the ore body, and the distance between every two holes is 2-3 m; a hopper is mounted at the upper end of the guide pipe, a fixing device is arranged on the guide pipe passing through the humus layer. The method has the advantages that the content of leached rare earth mother liquid impurities is reduced, the subsequent rare earth mother liquid treatment is facilitated, the geological hazards caused by the ore body landslide due to water swelling of clay minerals with high content of the humus layer are reduced, ammonium chloride can be used as a leaching agent, and under the premise of not increasing the impurity removal cost, the rare earth leaching rate is improved, and the selection range of the leaching agent is widened.

The invention provides a thin-wall square box anti-floating structure. The thin-wall square box anti-floating structure comprises a floor slab supporting framework, a formwork for pouring concrete is arranged on the floor slab supporting framework, a plurality of thin-wall square boxes are laid on the formwork, bottom plate rebars are further arranged at the bottoms of the thin-wall square boxes, anti-floating pressing ribs are arranged on the tops of the thin-wall square boxes, the anti-floatation pressing ribs on the two sides of the thin-wall square boxes are fixedly connected with the bottom plate rebars through first pulling connection parts, and the bottom plate rebars are fixedly connected with the floor slab supporting framework through second pulling connecting parts. By arranging the first pulling connection parts and the second pulling connection parts, the thin-wall square boxes are fastened to the formwork, the requirement for floating prevention of the thin-wall square boxes is met, and meanwhile, the construction efficiency of operators for punching operation and the operation for tying iron wires to the frame body is effectively improved.

The invention discloses a gob-side entry driving small coal pillar anti-impact pressure-releasing and counter-pulled anchoring integrated structure and a construction method thereof. An upper row of counter-pulled anchor cables and a lower row of counter-pulled anchor cables are adopted at gob-side entry driving small coal pillars for reinforced supporting, drill holes of the upper row of counter-pulled anchor cables adopt anti-impact pressure-releasing large-diameter drill holes, the two ends of each large-diameter drill hole are filled with concrete to be closed, and the middle of each large-diameter drill hole is hollow. The large-diameter drill holes are constructed in the coal pillars, and the counter-pulled anchor cables are mounted on the coal pillars, the functions of anti-impact pressure releasing and anchor cable mounting are integrated, the dual effects of coal pillar anti-impact pressure releasing and coal pillar bidirectional reinforcing through the counter-pulled anchor cables are achieved, the stability of the coal pillars is improved, deformation of entry sides is reduced, the counter-pulled anchor cables can be prevented from being broken under pulling and then flying off through the mode that the two ends of each drill hole are closed through the concrete, and poisonous and harmful gas and gob accumulated water are prevented from entering a gob-side entry driving roadway. The gob-side entry driving small coal pillar anti-impact pressure-releasing and counter-pulled anchoring integrated structure and the construction method thereof are suitable for anti-impact pressure releasing and reinforcing of the coal pillars of coal mines.

The invention provides a fresh air ventilation device and relates to the technical field of air purification. The fresh air ventilation device comprises a casing, fresh air ports, exhaust ports, an external connection port, a first fan and a second fan; the fresh air ports, the exhaust ports and the external connection port are formed in the side walls of the casing; the first fan and the second fan are arranged in the casing; the fresh air ports communicate with the first fan through the external connection port; and the exhaust ports communicate with the external connection port through the second fan. The fresh air ventilation device has the independent exhaust mode, so that the problem of air flow short-circuiting of a bidirectional flow pipeline-free fresh air ventilator is avoided; besides, the first fan and the second fan which are independent of each other are adopted, the fresh air pressure and the exhaust pressure are adjusted according to the actual requirements, and the ventilation efficiency of the device is improved; besides, with the single external connection port, the perforating number in a wall is reduced, the device is simple and convenient to mount, and meanwhile, the potential safety hazards to the wall due to perforation are reduced. On the basis, the invention further provides full-automatic and intelligent ventilation equipment.

The invention discloses an electric heating chip structure, a mounting method, a molding method and a wind-driven generator set. The electric heating chip structure is used for melting ice on a blade,and comprises an electric heating chip; and a positive wire and a negative wire which are integrally formed with the electric heating chip so as to supply power to the electric heating chip, whereinthe integrally formed electric heating, positive wire and negative wire are laid in the outer layer of the blade. The electric heating chip structure can reduce the damage to the outer layer of the blade as much as possible while satisfying a heating demand, and is low in operation complexity. The electric heating chip structure can improve the installation efficiency of an ice melting system, andis simple in electrical connection. The electric heating chip structure simplifies the production process, reduces the modification work of the blade, reduces the processing amount of the blade, reduces the modification difficulty, and shortens the working time.

The invention discloses an early-maturing and dense-planting cultivation method for fresh maize. The method includes the following steps that seed cultivation is performed, wherein heat preservation seedling cultivation is performed from mid-late February to early March in early spring; transplanting is conducted when each seedling grows 3-5 leaves, and the seedlings are transplanted in the groundfor heat preservation; planting is conducted, the transplanted seedlings are planted in holes, holes are formed at planting points, at least three seedlings are placed in each hole, the holes are filled with fertilizers before transplanting, and then full irrigation is performed; thermal insulation tools are removed gradually when the temperature rises due to environment warming; secondary seedling cultivation is performed in mid-early June, the seedling cultivation mode and the planting mode are same as these in spring; transplanting starts after preceding maize is harvested. According to the method, the maize can be planted in two seasons one year, meanwhile the centralized selling time of the maize is staggered, maize selling in a market can be advanced or delayed, lagging sales are avoided, and meanwhile the economic benefits are greatly improved. Meanwhile, the dense-planting in thin-hole technology is implemented, the labor and cost of transplanting are reduced.

The invention discloses a connecting device for connecting an automobile lamp with an automobile body and an automobile. The connecting device for connecting the automobile lamp with the automobile body comprises an automobile lamp connecting assembly and an automobile body connecting assembly, wherein the automobile lamp connecting assembly is connected with the automobile lamp; the automobile body connecting assembly comprises a guide component and a mounting base, the guide component is connected with the automobile lamp connecting assembly, a first buckle component is arranged on the mounting base, first limiting grooves are respectively formed in the left and right sides of the guide component, and a positioning block is arranged on the first buckle component; in an initial state, thepositioning block extends into the first limiting grooves, and the guide component and the first buckle component extend into a matching hole of the automobile body; and in a working state, the guidecomponent moves upwards relative to the first buckle component, the positioning block is disengaged from the first limiting grooves, and the first buckle component is supported to open, so that the first buckle component is clamped with the automobile body. The automobile comprises the connecting device for connecting the automobile lamp with the automobile body. According to the technical schemeof the connecting device, the automobile lamp is easily and conveniently installed, main engine plant production procedures are optimized, and the production quality of the automobile body is guaranteed.

The invention discloses an implantable type medicine injector for a tree and a medicine injection method of the medicine injector. The implantable type medicine injector for the tree comprises a wedge-shaped tube body, wherein a needle is arranged at the front end of the tube body; a water outlet is formed in the needle; an end cap is arranged at the tail end of the tube body; a breather hole is formed in the end cap; and scales are marked on the tube body. During medicine injection, the medicine injector can be implanted into an opening of a trunk, the volume can be designed as required, and the punching number and damage to the tree are reduced. Medicine can be injected for a plurality of times through once implantation, so that the medicine injection is convenient and, rapid and, labor-saving and efficient. The implantable type tree medicine injector can be used for a plurality of timesrepeatedly until the medicine injector is broken, so that the implantable type tree medicine injector is safer, more environment-friendly and more economical. The implantable type tree medicine injector can be used in a plurality of fields, and except besides pesticide injection, microelements, a growth regulator, antibiotics, a nutrient solution and the like can be injected. The implantable type tree medicine injector is convenient, rapid, economic and efficient during operation, and has a high promotion value.

The invention relates to a fresh air device, an air conditioner, a fresh air control method and a controller. The fresh air device comprises an air inlet, an air inlet baffle, an air outlet, an air outlet baffle and an air inlet and outlet channel. The air inlet communicates with the air outlet through the air inlet and outlet channel; the air inlet baffle and the air outlet baffle are located atthe two ends of the air inlet and outlet channel and are used for controlling whether the air inlet communicates with the air outlet or not; and when the air inlet communicates with the air outlet, the air inlet and the air outlet are used for intaking air or exhausting air simultaneously. According to the fresh air device, the air conditioner, the fresh air control method and the controller provided by the invention, the problems that an existing fresh air device can only conduct air exhaust at the air outlet and air intake at the air inlet according to a preset program, and the fresh air replacement rate is low are solved, the size of the fresh air device is not increased, the punching number is not increased, and installation can be conducted simply.

The invention relates to the field of air regulation, in particular to a heat exchange core for a two-way inlet/outlet air hose. The invention aims to solve the problems of great occupied space and high reformation cost of an existing fresh air system adopting a prismatic heat exchange core. To achieve the aim, the heat exchange core disclosed by the invention comprises a prismatic main body, wherein at least two first inner edge surfaces and at least two first outer edge surfaces are formed on the first side of the prismatic main body in the X direction; at least two second inner edge surfaces and at least two second outer edge surfaces are formed on the second side of the prismatic main body in the X direction; a plurality of air inlet flow channels are formed between the second outer edge surfaces and the corresponding first inner edge surfaces; a plurality of air outlet flow channels are formed between the first outer edge surfaces and the corresponding second inner edge surfaces;the plurality of air inlet flow channels and the plurality of air outlet flow channels are arranged in a cross manner. The heat exchange core disclosed by the invention can be applied to the two-way inlet/outlet air hose; occupied space of the heat exchange core is reduced and reformation cost is reduced.

A closestool comprises a water tank, a ring (2), a bedpan (1) and a sewage discharging pipeline. The lower portion of the ring (2) is provided with a cleaning hole (3), the inside of the ring (2) is provided with a water channel (4), water discharged from the water tank flows into the water channel (4) in the ring (2) and then flows out from the cleaning hole (3), sewage and stored water in the bedpan (1) are discharged from the sewage discharging pipeline, the ring (2) has an inner side face (9), the lower portion of the ring (2) has a connection face (7), a slope face (5) and a punched face (6) and is a non-smooth face on the whole, the slope face (5) and the punched face (6) are close to the inner wall of the bedpan (1), the slope face (5) and the punched face (6) are combined to form a zigzag shape in non-uniform distribution or a wave shape in non-uniform distribution, the slope face (5) and the punched face (6) are ring-shaped along the inner wall of the bedpan (1), the cleaning hole (3) is formed in the punched face (6), and the connection face (7) is among the slope face (5), the punched face (6) and the inner side face (9), is a smooth face, and is ring-shaped along the inner side of the ring (2).

The invention discloses a novel composite wall. The novel composite wall comprises a composite heat preservation plate, wherein a protective concrete layer and a structural concrete layer are arrangedon the two sides of the composite heat preservation plate, and a steel wire mesh is arranged in the protective concrete layer. The novel composite wall further comprises a fixed connection integratedpiece which is of a hollow structure, wherein the fixed connection integrated piece penetrates through the composite heat preservation plate, the steel wire mesh, the protective concrete layer and the structural concrete layer; the two ends of the fixed connection integrated piece are located in the protective concrete layer and the structural concrete layer respectively; and the steel wire meshand the composite heat preservation plate are connected through the fixed connection integrated piece. According to the novel composite wall, limiting connecting pieces and split bolts can be integrally arranged, operation steps in the wall manufacturing process are reduced, and the wall manufacturing efficiency is improved; and the binding force between the heat preservation plate and the concrete layers can be improved, and the bearing capacity and stability of the wall can be improved.

A closestool comprises a water tank, a ring (2), a bedpan (1) and a sewage discharging pipeline. The lower portion of the ring (2) is provided with a cleaning hole (3), the inside of the ring (2) is provided with a water channel (4), water discharged from the water tank flows into the water channel (4) in the ring (2) and then flows out from the cleaning hole (3), sewage and stored water in the bedpan (1) are discharged from the sewage discharging pipeline, the ring (2) has an inner side face (9), the lower portion of the ring (2) has a slope face (5) and a punched face (6) and is a non-smooth face on the whole, the slope face (5) and the punched face (6) are close to the inner wall of the bedpan (1), the slope face (5) and the punched face (6) are combined to form a zigzag shape or a wave shape, the slope face (5) and the punched face (6) are ring-shaped along the inner wall of the bedpan (1), the cleaning hole (3) is formed in the punched face (6), the upper portion of the inside of the bedpan (1) is provided with a ring of a water equalizing platform (8) surrounding the bedpan (1), and the water which flows out of the cleaning hole (3) flows into the water equalizing platform (8) and then flows into the lower portion of the bedpan (1).

The invention relates to the field of air conditioning, in particular to a heat exchange core for a bidirectional air inlet and outlet pipe. According to the heat exchange core the problem that an existing fresh air system adopting a prismatic heat exchange core is large in occupied space and high in transformation cost. The heat exchange core comprises an annular body, the annular body is provided with a first inner ring surface and a first outer ring surface along the axial first side, the annular body is provided with a second inner ring surface and a second outer ring surface along the axial second side, a plurality of air inlet flow channels are formed between the second outer ring surface and the first inner ring surface, a plurality of air outlet flow channels are formed between thefirst outer ring surface and the second inner ring surface, and the plurality of air inlet flow channels and the plurality of air outlet flow channels are arranged in a crossed mode. The heat exchange core can be applied to the bidirectional air inlet and outlet pipe, the occupied space of the heat exchange core is reduced, and the transformation cost is reduced.

The invention discloses a synchronous punching mechanism of a bag making machine. The punching mechanism is provided with a first punching needle roller and a first grooved roller clamping and punching a woven cloth sequentially for punching holes, and a second punching needle roller and the second grooved roller, one of the first punching needle roller and the second punching needle roller is located on the upper surface of the woven cloth, and the other is located on the lower surface of the woven cloth, the first grooved roller and the second grooved roller There is a supporting curved surface protruding from its surface. The present invention can cooperate with the cement main business to continuously improve the dust control of the cement packaging and loading links, reduce the dust overflow of the ventilation holes in the cement packaging bag during the packaging and loading process, and prevent the lower half of the packaging bag surface from being used for ventilation. Then punch holes, but synchronously punch the upper part of the bag body, and reduce the number of holes punched on the bag surface by 40% under the condition of meeting the normal ventilation requirements of cement packaging, so as to reduce the overflow of the bag surface during filling and shipping. The effect of dust can meet the needs of production and environmental protection.

The invention discloses an in-wall rectangular thread repairing device. The device comprises an outer box body, a power device is arranged in the outer box body, the power device comprises an outer box inner cavity located in the outer box body with a downward opening, a motor is fixedly arranged on the inner wall of the upper side of the outer box inner cavity, a motor shaft is in power connection with the lower side of the motor, the motor shaft is fixedly provided with a repair shaft located in the outer box inner cavity, and a lower surface detection device is arranged on the left side ofthe repair shaft. The device is specially used for rectangular thread repairing, suitable for thread repairing in various walls, capable of effectively reducing the number of punched holes and keepingthe walls attractive and capable of accurately positioning thread breakage positions, after the damaged positions of the threads are determined through positioning, accurate repairing is conducted onthe damaged positions, after repairing, the damaged positions are compacted, redundant filling materials are scraped off, and finally drying is conducted.

The invention discloses a steel structure board house which can be quickly disassembled and assembled in the field of steel structure technology, which comprises two sets of installation columns arranged in parallel, the side walls of the installation columns are connected with steel structure wall panels, and the top of the steel structure wall panels One side is provided with installation ears, and the bottom of the reinforcement plate is provided with a reinforcement column, the bottom of the reinforcement column is connected to the bottom of the inner cavity of the steel structure wall, two sets of screws are installed on the installation column, and the right end of the screw rod The support keel is fixedly installed, and the installation keel is sleeved on the support keel. The structure of the invention is simple and the design is reasonable. Through the design of the detachable steel structure wall panel, the use of bumps and grooves can quickly realize the wall The disassembly and assembly of the board, through the use of the installation keel, can reduce the contact area between the wall board and the installation column, thereby reducing the number of perforations on the wall board, so that the steel structure wall board can maintain the completed shape after dismantling and extend its length. service life.

The invention relates to a fixed device with moisturizing and seeping-preventing functions for light roof greening, and relates to the technical field of light roof greening. The fixing device with moisturizing and seeping-preventing functions for light roof greening comprises a light roof body, an installation mechanism, a drainage mechanism and a turf fixing mechanism, wherein a turf pavement groove is arranged above the light roof body; the installation mechanism is placed at the lower end of the turf pavement groove; a first installation plate is arranged inside the installation mechanism;first bolts are embedded onto two sides of the interior of the first installation plate; a second installation plate is connected to the upper end of the first installation plate; second bolts are arranged on two sides of the interior of the second installation plate; and a guide rail is fixed to the upper end of the second installation plate. The fixing device with moisturizing and seeping-preventing functions for light roof greening involved the invention has the beneficial effects that the turf pavement groove is arranged at the upper end of the guide rail, the guide rail is arranged on the first installation plate, and the first installation plate is arranged on the light roof body through the first bolts, so that the turf pavement groove can be indirectly installed on the light roofbody.

The invention provides a wall mounting structure for an assembly type arrow shaped expanding plug leveling part. The wall mounting structure comprises a first keel, a second keel, and an arrow shapedexpanding lug leveling part, wherein the first keel is arranged on the outer wall of one side at an external corner of a base-layer wall; the second keel is arranged on the outer wall of the other side at the external corner of the base-layer wall; the arrow shaped expanding plug leveling part comprises a first connecting plate, a second connecting plate, an expanding lug screw and a positioning nut; the first connecting plate and the second connecting plate are symmetrically arranged on the end part of the expanding plug screw; the positioning nut sleeves the expanding plug screw; the expanding plug screw is fixedly arranged on the external position of the base-layer wall; the first connecting plate is connected to the first keel, and the second connecting plate is connected to the secondkeel. Compared with the prior art, the wall mounting structure has the advantages that: a mounting wall surface is good in stability, a phenomenon that the wall surface is damaged or mounting cannotachieved on a wall corner is avoided, mounting is convenient and quick, and construction efficiency is high.