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2673results about How to "Avoid accumulation" patented technology

Hydraulic reversing mechanism

The invention discloses a hydraulic reversing mechanism. The hydraulic reversing mechanism comprises an upper joint, a center shaft, a guide ring, an upper shell, a guide pin, a connection nipple, a compression spring, a lower shell, a limiting sleeve and a lower joint, wherein the upper joint is connected with the center shaft, the guide ring is arranged between the upper joint and the upper shell, and the upper shell, the connection nipple, the lower shell and the lower joint can be slidably arranged on the outer side of the center shaft. The guide pin is arranged on the upper shell, a guidegroove is formed in the portion, corresponding to the guide pin, of the center shaft, the guide pin can rotate in the guide groove, a compression cavity is defined by the connection nipple, the lowershell, the lower joint and the center shaft, and the compression spring and the limiting sleeve are arranged in the compression cavity. The hydraulic reversing mechanism has the benefits that the hydraulic reversing mechanism can be used for rotational reversing of a sand washing tool, the washing operation is more sufficient, no atomization is generated, and the washing capacity is ensured. According to the hydraulic reversing mechanism, reversing is achieved under the hydraulic action, the structure is simple, and convenience is brought to installation, disassembly and maintenance. The large-discharge-capacity cleaning work can be met, and rotary jetting to the washing tool can be achieved.
Owner:JEREH ENERGY SERVICES

Method and corresponding device for taming crystal oscillation frequency of time-keeping device

The invention discloses a method and corresponding device for taming crystal oscillation frequency of a time-keeping device, which comprises the following steps of: step 1, acquiring the standard time pulse A that is located and output by a navigation satellite; step 2, acquiring the standard time pulse B output by device crystal oscillation fractional frequency; step 3, measuring the clock difference between the standard time pulse A and the standard time pulse B; and step 4, if clock difference exists between A and B, adjusting the crystal oscillation frequency of the device to make the clock difference be in the allowed scope. For the time-keeping equipment with pressure control and temperature compensating crystal oscillation or pressure control crystal oscillation, the frequency deviation of the corrected crystal oscillation can be detected in real time by the method provided by the invention to eliminate the time-keeping error caused by crystal oscillation frequency deviation and avoid accumulation of error. Therefore, the invention is suitable for various satellite navigation systems, such as GPS, Beidou first generation navigation satellite, Beidou second generation navigation satellite, GLONASS, GALILEO and other satellite navigation systems.
Owner:TECHTOTOP MICROELECTRONICS

Raw material crushing and drying integrated equipment for chemical industry production

The invention provides raw material crushing and drying integrated equipment for chemical industry production. The raw material crushing and drying integrated equipment comprises a tank body; the tank body is arranged to be a hollow cylinder with the two ends communicating with each other, and the tank body is horizontally arranged; an opening in the left end of the tank body is provided with a left end cover, and an opening in the right end of the tank body is provided with a right end cover; the middle upper portion of the left end cover is fixedly provided with a feeding pipe in a welded manner; the top face of the tank body is provided with a dehumidification device; the outer wall of the tank body is fixed to a bottom plate through supporting plates in a welded manner; the tank body is internally provided with a processing cavity; and the processing cavity is internally provided with a first crushing and material-turning-over device and a second crushing and drying device. Through the arrangement of the first crushing and material-turning-over device and the second crushing and drying device, materials are sheared and crushed through second rotary crushing blades in cooperation with first crushing blades, hot air blown in by a warm air machine is uniformly distributed through air injection holes uniformly distributed in the surface of a second rotary shaft, the distribution area of the hot air is expanded, and the raw materials are fully dried conveniently.
Owner:合肥多智科技开发有限公司

Building construction waste recycling device

The invention discloses a building construction waste recycling device. The building construction waste recycling device comprises a housing, wherein a transverse partition is fixedly connected between inner walls at the two sides of the housing; the inner walls at the two sides of the housing are fixedly connected with stamping barrels; the bottoms of the stamping barrels are fixedly connected with the upper surface of the transverse partition; a charge hole is fixedly connected in the middle position of the upper surface of the housing; the bottoms at the two sides of the charge hole are fixedly connected with connecting blocks through transverse rods; the connecting blocks are movably connected with separating inclined plates through pin rolls; and one side, away from each connecting block, of each separating inclined plate is fixedly connected with the side surface of the corresponding stamping barrel through a fixed block. The building construction waste recycling device has the advantages of preliminarily crushing and separating building waste; the building waste is re-separated after being preliminarily crushed, so that normal crushing of a crushing device is prevented; and moreover, the building construction waste recycling device further has the advantages of high waste crushing efficiency and uniform crushing, and solves the problem that building waste cannot be effectively recycled directly.
Owner:盛尔建设集团有限公司

Biomass straw smashing and forming all-in-one machine

The invention provides a biomass straw smashing and forming all-in-one machine, and relates to a straw smashing and forming device. The biomass straw smashing and forming all-in-one machine solves the problems that in an existing straw forming fuel production process, the straw smashing procedure and the compressing and compacting forming procedure are independently completed through a smashing device and a squeezing forming device respectively, the power consumption is high, the logistics cost is high, and the working cycle is long. The vertical smashing device and the squeezing forming device are arranged on a walking plate in parallel from front to back, walking wheels are arranged below the walking plate, a blade is arranged at the bottom of a feed port of the vertical smashing device, a main shaft of the smashing machine is sleeved with a sleeve, hammer carrier plates are arranged on the sleeve from top to bottom, a hammer set is arranged between every two adjacent hammer carrier plates in an annular mode, hammers of each hammer set are evenly arranged in the vertical direction, each hammer is of a multi-tooth-edge rectangular structure, an air blower is arranged at the bottom of a machine shell and communicate with a material storage hopper, and the material storage hopper is communicated with an inlet of the squeezing forming device through an air duct. The biomass straw smashing and forming all-in-one machine is used for smashing and forming biomass straw.
Owner:NORTHEAST FORESTRY UNIVERSITY

Forward and reverse rotation drum type grain drying device

The invention discloses a forward and reverse rotation drum type grain drying device which comprises a base, a drying cylinder, a motor and an air heater. According to the forward and reverse rotation drum type grain drying device, a transmission mechanism is utilized to realize forward and reverse rotation of the drying cylinder; during the process of forward and reverse rotation, the drying cylinder can swing grain the drying cylinder to avoid grain accumulation so as to uniformly heat the grain; an air heating pipe is arranged in the center of the drying cylinder to dissipate heat from the center to the periphery so as to uniformly distribute heat of the drying cylinder, and a material turnover rod can turn over grain in the drying cylinder to further ensure that the grain is uniformly heated; in addition, the drying cylinder can do reciprocating motion left and right, so that the material turnover rod can turn over the grain in an all-around manner and the material turnover range is larger; a lantern ring with embedded balls is arranged to ensure rotating stability of the drying cylinder and does not affect left-right movement of the drying cylinder; and filtration holes are formed in the cylinder wall of the drying cylinder to effectively filter dust and impurities in the grain.
Owner:ZHENGZHOU UNIV

Well drilling type oil gas preparing system through gasification and dry distillation of oil shale at normal position and technical method thereof

The invention relates to a well drilling type oil gas preparing system through gasification and dry distillation of oil shale at a normal position and a technical method thereof. At least two parallelly arranged directional wells are arranged in an oil shale layer, the horizontal sections of the directional wells are arranged at the bottom of the oil shale layer, an igniting well is respectively arranged between the tail ends of the horizontal sections of the directional wells and the ground, a plurality of auxiliary gasifying wells are arranged between the horizontal sections of the directional wells and the ground, the horizontal sections of the directional wells are arranged between the vertical sections of the directional wells and the igniting wells, and a plurality of oil gas collecting wells are arranged between the gasifying area and the ground. The technological procedure includes: igniting for reverse fire power penetration and expanding a gasification and dry distillation passage; gasifying and dry-distilling the oil shale layer of the gasifying area in positive, negative or fixed point mode; loosening and heating the oil shale layer in a dry distillation area so as to produce cracks on the dry distillation area and generate oil shale oil gas and combustible gas; collecting the oil shale oil gas through an oil gas collecting well; and condensing and separating the oil shale oil gas on the ground surface, thereby obtaining oil shale oil and combustible gas. The well drilling type oil gas preparing system through gasification and dry distillation of the oil shale at the normal position integrates shaft building, oil shale exploitation and ground surface dry distillation oil preparing technology, shortens the production process, is small in investment, high in efficiency and safe and protects the environment.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Hydraulic press with automatic weighing device and reciprocating work table

The invention belongs to a hydraulic press and particularly relates to a press for powder compression molding forming. The press for powder compression molding forming consists of a hydraulic station taken as a power source, a control system and a main frame, wherein the main frame consists of a press and an automatic weighing device; and the press is formed according to the following mode: an upper beam (1), a lower beam (2) and a vertical column (3) are linked into a stress frame; an upper connecting plate (4), a movable cross-beam (5) and a pull rod (6) are linked into a closed frame which is fixedly connected with a piston rod of a potting oil cylinder (7) fixedly connected to an upper plane of the upper beam (1); the movable cross-beam (5) is guided through a guide sleeve (8) and can move up and down along the vertical column (3); an upper plane of the movable cross-beam (5) is fixedly provided with a guide rail (9); the guide rail (9) is provided with a reciprocating work table (10) which can move left and right along the guide rail; and a piston type master cylinder (13) fixedly connected with the lower beam (2) is arranged below the movable cross-beam (5). The press has the advantages of compact structure, automatic powder weighing, feeding and charging, and high automation degree of the whole machine.
Owner:吉林省吉大机电设备有限公司
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