19results about How to "Reduce exposed area" patented technology

The application discloses a coal feeder feeding and conveying device for a thermal power plant, which comprises a shell assembly, a conveying assembly is mounted on the inner wall of the shell assembly, a dust removal assembly is mounted on the outer wall of the shell assembly, a mounting assembly is mounted on the inner wall of the shell assembly, and a driving assembly is mounted on the side wall of the shell assembly. The dust removal assembly is used for absorbing dust in the shell assembly, the driving assembly is used for driving the mounting assembly to move, and the conveying assembly is used for conveying coal. In the application, two fans at the top and the bottom of the mounting box import and export air to the inside of the mounting box, so that the coal dust in the inside of the mounting box can be controlled in the inside of the box body. The dust collector sucks air outward through two air suction pipes, negative pressure is generated in the middle of the mounting box, air flow at both ends of the mounting box is gathered to the middle, and the air flow is discharged by the dust collector, so that the coal dust in the inside of the mounting box can be effectively prevented from spreading to the outside of the box body.

This utility model relates to the field of dust and waste conveying technology, and in particular to a closed conveying device for dust and waste from roadheaders and anchorers. It includes a conveying frame, a conveying component, and multiple idlers. The conveying frame has two first conveying rollers symmetrically and rotatably connected to its inner wall. The conveying component includes a conveyor belt tensioned and sleeved on the two first conveying rollers. The working surface of the conveyor belt has a V-shaped conveying groove along its width. Multiple idlers are arranged at intervals along the conveying direction within the conveying frame and are rotatably connected to the inner wall of the conveying frame. In this utility model, the V-shaped conveying groove on the working surface of the conveyor belt effectively constrains the waste, preventing it from dispersing during conveying, reducing the exposed area of ​​the waste, and lowering the possibility of dust generation. The idlers provide linear support to the conveyor belt, ensuring stable operation and preventing waste from scattering due to belt swaying, thus improving the stability and reliability of the conveying process.

The application discloses a semi-buried power distribution cabinet based on shallow geothermal heat exchange and a control method thereof. The power distribution cabinet comprises a cabinet body partially buried in shallow soil, a heating electrical element arranged in the cabinet body, a ground source heat exchange assembly comprising a closed buried heat exchange pipeline arranged in the shallow soil, an internal liquid cooling assembly comprising a cooling jacket sleeved on the heating electrical element, the cooling jacket being connected with the buried heat exchange pipeline and forming a closed heat exchange loop, and an adjusting assembly comprising a heating and dehumidifying module arranged in the cabinet body. The application couples a part of the cabinet body with the shallow soil, reduces direct heat impact of a high-temperature environment and strong solar radiation on the cabinet body, utilizes temperature stability of an underground environment, meanwhile, retains an above-ground operation and maintenance part, can realize cooling and condensation prevention cooperation in a high-temperature, high-humidity and strong solar radiation area, and is suitable for power distribution scenes in tropical, subtropical and coastal high-salt-mist areas.

The utility model discloses a kind of geothermal-resistant impregnated paper laminated solid wood composite floor, including strip-shaped floor body, including by upper to lower sequentially arranged impregnated film paper, high-density fiberboard, plywood and single bottom plate, the plywood includes by upper to lower sequentially arranged multilayer wood board, and the topmost layer wood board in multilayer the wood board is first layer wood board, the conduit of the first layer wood board is distributed along the length direction of wood floor, and the pipe hole of the conduit of the first layer wood board is towards the broad side of the floor body.The pipe hole of conduit is towards the broad side of the floor body, when air moisture content is higher, the area of pipe hole exposed in first layer wood board can be reduced, plywood water absorption is reduced, thereby controlling wood floor water absorption when air humidity is larger, reduce the bulging phenomenon of wood floor.

The utility model relates to the field of constructional engineering template cutting, in particular to a protective device for a woodworking saw bench, which comprises a cover body and a suspension rod body, and a groove is arranged at the bottom of the cover body; one side, far away from the groove, of the cover body is connected with the hanging rod body, one end of the hanging rod body is connected with the cover body, the other end is provided with a hook piece, and the cover body can block ejected nails; the cover body is connected with the hanging rod body, so that the cover body is hung above the saw disc, and the cover body blocks ejected nails and prevents the nails from hurting workers; the groove is formed in the bottom of the cover body, the cover body is arranged on the rotary saw in a covering mode through the groove, the exposed area of the rotary saw is reduced, and therefore the probability that nails are ejected out of the cover body is reduced; the suspension rod body is connected to one side far away from the groove of the cover body, so that the suspension rod body is prevented from interfering with an operation area; the cover body is hung on a cross beam above a woodworking saw bench through the hook piece, so that the cover body is hung above a rotary saw, nails are prevented from splashing to hurt people, and the safety of operators is guaranteed.

The invention relates to a medical device (1) for the observation of a partly fluorescent object (2) such as tissue (3) comprising at least one fluorophore (4). The fluorophore (4) absorbs light in at least one spectral excitation waveband (46) and emits fluorescent light in at least one spectral emission waveband (54). In order to be able to observe also non-fluorescent regions in the tissue (3) without complicated filter arrangement, the medical device (1) according to the invention comprises at least one filter system (16, 38) which comprises, in a filter plane (18), comprises a filter area (20) and a transmission window (22). The filter area (20) comprises a band pass filter (24) having at least one passband (44) comprising the at least one excitation waveband. The transmission window has a passband (48) which is wider than the passband (44) of the filter area (20). In particular, a filter layer (64) of the filter area (20) may be missing in the transmission window (20).

The invention relates to a display module supporting structure, a spliced screen module and a display screen module. The display module supporting structure comprises a bottom shell and a first colloid, a mounting groove is formed in the bottom shell and used for containing the lamp panel, the mounting groove comprises a first groove part and a second groove part which communicate with each other, the second groove part is arranged on the side, close to a groove opening of the mounting groove, of the first groove part, and the groove wall of the second groove part is sunken towards the side, away from the center line of the mounting groove, relative to the groove wall of the first groove part; a step wall is formed at the joint of the first groove part and the second groove part; the first colloid is filled in the gap between the groove wall of the second groove part and the lamp bead on the lamp panel so as to cover the step wall. The step wall is covered by the first colloid to partially shield the edge of the bottom shell, so that the exposed area of the bottom shell is reduced under the front view angle, the thickness of the splicing gap of the adjacent screen bodies is reduced under the multi-screen splicing application scene, the splicing black edge is greatly eliminated, and the display effect of the whole screen is improved.

The present application provides a kind of pipe diameter inner shot blasting device centralizer, including throw head arm, throw head arm one end is equipped with throw head, throw head arm is equipped with centralizer ring, centralizer ring is equipped with multiple curved support rods, support rod can be telescopic, support rod one end is equipped with universal ball bearing, multiple universal ball bearings are abutted on pipe diameter;Multiple universal ball bearings are jetted towards the side of pipe diameter.Just by the free rotation of its ball, universal ball bearing is adapted to the horizontal movement of pipe diameter rotation and throw head, reduce the resistance when throw head and pipe diameter relative motion.At the same time, the buffer mechanism of support rod and spring can reduce the larger vibration generated when universal ball bearing ball passes through pipe diameter weld, buffer the impact of throw head deadweight to the whole equipment.Universal ball bearing ejects the reaction force of gas and offsets the gravity of throw head arm part.Avoid throw head and pipe diameter contact, avoid scratch when universal ball bearing and pipe diameter contact, affect pipe diameter quality.

The invention discloses a Pi-shaped open-web steel-concrete composite beam for assisting steel bar positioning, which is applied to the field of buildings and is characterized in that stirrups and floor steel bars in the beam are quickly and accurately positioned through a short web provided with first bar penetrating holes, and the assembling efficiency of first profile steel and second profile steel and the manufacturing speed of a beam body are remarkably improved; meanwhile, the hollow cavity defined by the pair of short webs and the horizontal plate and the floor slab reinforcing steel bars movably penetrating through the first profile steel greatly enhance the anchoring effect of the profile steel, the beam pouring block and the floor slab pouring block, toggle pins needed by traditional H-shaped steel can be replaced, construction is simplified, and steel is saved; in addition, the structure reduces the exposed area of the profile steel and reduces the consumption of the fireproof coating; in addition, the second bar penetrating holes are formed in the first profile steel to enable the stirrups to penetrate to the floor area, and the reverse webs and the inner tie bars are arranged, so that the integrity of the beam and the floor pouring block and the connection stability between the profile steel are effectively improved.

The invention discloses a solar modular photovoltaic module convenient to clean, and relates to the technical field of photovoltaic power generation, the solar modular photovoltaic module comprises a frame mechanism, the frame mechanism comprises a main beam, a side beam, a middle beam, an auxiliary beam, a side rod, a stop column and a storage chute; a water collecting mechanism is installed on the top face of the main beam and comprises a supporting column, a water collecting tank, a water distribution chamber and a water injection rod. A power generation mechanism slides in the storage sliding groove, and the power generation mechanism comprises a rotating motor, a frame, a top frame, a bottom frame, a solar panel and a storage groove; an unfolding mechanism is mounted in the storage groove, and the unfolding mechanism comprises a rotating shaft, a blocking strip, an unfolding plate, an anti-rotating plate and a blocking block; a cleaning mechanism is mounted in the top frame and comprises a shell, a water storage bin, a cleaning belt and a convex pattern cylinder; the solar photovoltaic module has the advantages that the solar photovoltaic module is modularly designed, the solar photovoltaic module can be quickly folded and unfolded, the service life is prolonged, the power generation efficiency is improved, and meanwhile the solar photovoltaic module is cleaned.

The warm-keeping quilt comprises a quilt cover and a quilt core, the upper end face of the quilt cover and the upper end face of the quilt core are jointly provided with a visible opening, a covering curtain is fixedly installed on the inner wall of the visible opening, the inner walls of the two sides of the visible opening are connected with the outer walls of the two sides of the covering curtain through sealing zippers, first edge covering cloth is sewn on the upper end face of the quilt cover, and a second edge covering cloth is sewn on the lower end face of the quilt cover. A plurality of first female buckles are fixedly installed on the inner wall of the first edge covering cloth, and first male buckles matched with the first female buckles are fixedly installed on the upper end face of the cover curtain. Through the arrangement of the cover curtain, the sealing zipper, the first mother buckle, the first son buckle and other components, the warm-keeping quilt can be locally and conveniently opened and closed, medical staff do not need to lift the quilt integrally during examination, only need to separate the first mother buckle and pull the sealing zipper, the exposure area of a patient is greatly reduced, the body temperature can be maintained, cold can be prevented, privacy can be protected, and the medical staff can conveniently use the warm-keeping quilt. The awkwardness of the patient is reduced, the comfort and the adaptability are improved, and the practicability is high.

The application discloses a kind of near vertical medium-thick, thick coal seam filling mining method, it is related to coal mine filling mining technical field.In near vertical coal seam, the working face that is arranged downward is carried out, and according to the depth of coal seam, the working face is divided into multiple mining stages;In the top and bottom of each mining stage, horizontal direction goaf strip is respectively constructed, and goaf strip is filled with high water-cement ratio cementing material to form artificial false roof and artificial false bottom;From artificial false roof, the working face is downwardly mined until artificial false bottom, forming the goaf of mining stage;The goaf is completely filled with low water-cement ratio cementing material;Repeat the step to realize the filling mining of entire near vertical medium-thick, thick coal seam.This method can solve the mining problem of near vertical medium-thick, thick coal seam coal resources, release the stagnant coal resources caused by complex occurrence conditions, and can effectively reduce strata movement and surface deformation.

This application discloses a testing apparatus for an energy storage device. The testing apparatus includes: a housing with an upward-facing opening; a top cover covering the opening and forming a receiving space with the housing, the receiving space for accommodating the energy storage device; and a salt spray device including multiple salt spray nozzles disposed on the top cover and facing the receiving space, the multiple salt spray nozzles being uniformly arranged along a first direction perpendicular to the thickness direction of the top cover. The testing apparatus provided by this application can improve the accuracy of test results.

This invention discloses a method for excavating underground mine roadways containing weak interlayers, relating to the field of underground mine roadway construction technology. A horizontal grouting hole is drilled at the arch of the roadway for single-hole grouting of the surrounding rock. In the middle of the roadway, trench excavation is carried out to create a support trench. Wooden pillars are used to temporarily support the support trench, and hydraulic equipment is used to apply prestress to the roadway roof. The left half of the roadway is excavated, and after construction on one side, support work is carried out on that side. Then, the right half is excavated, and after construction on one side, support work is carried out on that side. After both sides are excavated and supported, the wooden pillars supporting the middle section are removed, and the surrounding rock of the roadway roof is maintained. Single-hole grouting reinforces the top surrounding rock; the use of wooden pillars to support the support trench, and the unilateral construction and support during roadway excavation, minimize the exposed area of ​​the surrounding rock during construction, preventing continuous rockfall.

The invention relates to a semi-solid alloying method for preparing a metal alloy material. The method comprises the following steps: firstly, obtaining a solid-liquid coexistence temperature interval suitable for treatment based on a phase diagram and thermodynamics calculation; then selecting metal raw materials forming the target component, and assembling the metal raw materials into an original blank with a close contact interface; and in the semi-solid temperature interval, a heat-force coupling process is adopted, a solid-liquid coexisting semi-solid structure is formed through local liquefaction induced by diffusion / mass transfer, and macroscopic flow mixing and microstructure reconstruction of the material are enhanced under the shear deformation or stirring effect, so that uniform alloying and structure refinement of the target alloy material are achieved. Compared with the prior art, the method has the advantages that uniform alloying and structure refinement of the alloy material can be realized under the condition that the traditional multi-step series connection of smelting, casting, heat treatment, deformation processing and the like is not needed, the alloy material with uniform components, fine matrix structure and uniformly distributed second phase is obtained, the process flow is simplified, and the energy consumption is low.

This utility model provides a spray cooling structure for a double-headed umbrella, belonging to the technical field of double-headed umbrellas. It solves the problems of high processing costs and difficult installation of existing umbrella spray cooling structures. The double-headed umbrella spray cooling structure includes a hollow upright pole, with an umbrella frame slidably connected to the upright pole vertically. An umbrella fabric is placed on the umbrella frame. The top of the hollow upright pole has a main upper umbrella plate located in the middle of the umbrella fabric. Two auxiliary upper umbrella plates extend outwards from the left and right sides of the umbrella frame. The spray cooling structure includes a connecting hose. The middle or lower end of the hollow upright pole has a clearance inlet for the connecting hose to enter the hollow upright pole's inner cavity, and the upper end has a clearance outlet for the connecting hose to exit the hollow upright pole's inner cavity. This double-headed umbrella spray cooling structure has minor improvements, reducing processing costs. Furthermore, during installation, the connecting hose is directly threaded onto the upright pole, and then the water pump and water pump nozzle are installed, making installation convenient.

The utility model discloses a PVD coating environment temperature monitoring device which comprises a heat insulation box, a furnace temperature monitor is arranged in an inner cavity of the heat insulation box, a top cover is connected to the top end of the heat insulation box in a clamped mode, a sliding groove is formed in one side of the top end of the top cover, and a temperature measuring plate is connected to an inner cavity of the sliding groove in a sliding mode. The side hole is formed in the top of one side wall of the heat insulation box and used for a temperature detection line to pass through, two hole blocking plates are arranged in an inner cavity of the side hole, a through hole is formed in one side of the front face of each hole blocking plate, and an auxiliary disassembly piece is arranged on one side of the top cover. According to the utility model, through the arrangement of the temperature measuring plate, after the device monitors the environment in the furnace, the monitoring line end of the furnace temperature monitor can be taken down from the temperature measuring plate, and then the push rod is moved, so that the ejector block moves towards one side of the temperature measuring plate in the inner cavity of the built-in groove until the temperature measuring plate is partially ejected out of the inner cavity of the chute; a worker can conveniently disassemble the temperature measuring plate, and then the normal-temperature temperature measuring plate is installed on the top cover through the sliding groove.

This invention discloses an unmanned tracked robot for agricultural sowing, relating to the field of agricultural machinery technology. It includes an unmanned tracked sowing vehicle with a trapezoidal block fixedly connected to its top. A fixed horizontal plate is fixedly connected to the side wall of the trapezoidal block, and a centrifugal sowing component is mounted on the top of the fixed horizontal plate. The centrifugal sowing component includes a stepper motor fixedly connected to the side wall of the trapezoidal block. The centrifugal sowing component utilizes centrifugal force to throw seeds from the sowing device, causing the seeds to disperse evenly within a certain range. This avoids excessive concentration or uneven distribution of seeds, ensuring uniform seed distribution in the field and promoting uniform crop growth. The centrifugal sowing device can perform sowing operations at a high speed, significantly improving sowing speed compared to traditional manual sowing or some low-speed sowing methods. It can complete large-area sowing tasks in a short time, making it particularly suitable for large-scale agricultural production and effectively shortening the sowing cycle.

This invention relates to a positive electrode for a lithium secondary battery and a lithium secondary battery. Specifically, the positive electrode includes: a first positive electrode binder layer in contact with a positive electrode current collector; and at least one second positive electrode binder layer disposed on the first positive electrode binder layer. The first positive electrode binder layer comprises a first positive electrode active material and a first binder, and the second positive electrode binder layer comprises a second positive electrode active material and a second binder. The average particle size (D) of the first positive electrode active material is... 50 The particle size is smaller than the average particle size (D) of the second positive electrode active material. 50 The cathode has a diameter of 0.1 μm to 2 μm. It exhibits improved penetration resistance even when metal objects such as nails penetrate the electrode, while also possessing high capacity, high output performance, excellent cycle characteristics, and thermal stability.