1386 results about "Centrifuge" patented technology

Disclosed in the present invention are high-rise pile cap equipment under a horizontal load and a centrifuge test method for foundation bearing characteristics thereof. The equipment comprises a model box, a sand layer, a model pile cap, at least eight model piles, a horizontal loading device, at least two laser displacement sensors, an axial force sensor, and a plurality of strain gauges. The method comprises: S1, performing one-way horizontal loading on high-rise pile cap equipment under a horizontal load to obtain an ultimate foundation bearing capacity situation, a model pile body axial force distribution situation, a pile foundation axial force comparison situation, a model pile body bending moment distribution situation, and a model pile body bending moment comparison situation of the equipment; and S2, performing one-way variable amplitude cyclic loading on the high-rise pile cap equipment under the horizontal load to obtain a foundation displacement situation, an effect of the number of cycles on foundation stiffness, an effect of a cyclic load amplitude on the foundation stiffness, and a foundation inclination situation. In this way, the foundation design of the high-rise pile cap can be optimized, and a basis and a reference for evaluating safety of foundation long-term service are provided.

The invention relates to the field of uranium concentration, and discloses an energy-saving device and method for drying a first-batch centrifugal unit. According to the device, an inlet of a centrifugal machine is connected with an outlet of an evaporator through a pipeline provided with a fourth cooling valve and an eighth cooling valve and is connected to the secondary side of a cooling plate heat exchanger and the secondary side of a heating plate heat exchanger respectively; an outlet of the centrifugal machine is connected with an inlet of the evaporator through a sixth cold valve, a first cold valve and a second water pump. An inlet of the sixth cold valve is connected with the secondary side of the heat supply plate heat exchanger through a first water pump. The primary side of the cold supply plate heat exchanger is connected with a newly-built cooling tower loop, and the primary side of the heat supply plate heat exchanger, the condenser and the newly-built cooling tower form circulation. By optimizing system connection and a heat energy circulation path, the energy utilization efficiency and the equipment utilization rate are effectively improved, and the investment and operation cost is remarkably reduced.

The invention relates to the technical field of sulfur recovery, in particular to sulfur recovery equipment and a recovery method thereof.The sulfur recovery equipment comprises a recovery box, a reaction box is arranged on the recovery box, an air outlet is formed in the reaction box, an air inlet pipe is arranged on the side wall of the reaction box, lifting mechanisms are arranged in the recovery box and the reaction box, and a spraying mechanism is arranged on the reaction box; and a centrifugal mechanism is arranged in the recycling box. According to the device, the lifting mechanism and the cleaning mechanism are matched, so that the atomizing nozzle can be rotationally cleaned during up-and-down movement, particles are effectively prevented from being blocked at the atomizing nozzle, a desulfurizing agent can be uniformly and smoothly sprayed, and the sulfur recovery efficiency and quality are improved; by arranging the centrifugal mechanism, under the action of centrifugal force, liquid is discharged through the drainage pipe, solid is discharged through the drainage groove, effective separation of the solid and the liquid is achieved, the treatment efficiency and quality are improved through the solid-liquid separation mode, the solid and the liquid can be conveniently and intensively treated in a distinguished mode, and further recycling of resources is facilitated.

The invention discloses a centrifugal machine for sludge dewatering, belongs to the technical field of sludge dewatering, and aims to solve the problems that when the centrifugal machine for sludge dewatering is used, sludge on the inner wall of a rotary drum can be gradually compacted to form a filter cake layer, particles in the filter cake layer easily form a bridging structure at an inlet of a through hole, and the sludge dewatering efficiency is affected. A controller is arranged on the outer wall of the supporting frame, a cylinder is arranged in the supporting frame, one side of the cylinder communicates with a drainage pipe, a first driving assembly is arranged in the cylinder, a dewatering assembly is arranged on one side of the first driving assembly, a second driving assembly is arranged in the cylinder and rotationally connected with the cylinder, and a sewage pumping assembly is arranged at the top of the supporting frame. According to the invention, dual blockage clearing of crushing blockages by the conical rod and purging by high-pressure gas is conveniently realized, shutdown disassembly is not needed, continuous smoothness of the water outlet hole is guaranteed, stable efficiency of centrifugal dewatering is maintained, and the dewatering effect is enhanced.

The utility model discloses a micro-nano powder washing, dispersing and filtering device, which relates to the technical field of powder washing and separating equipment and comprises an outer barrel and a centrifugal barrel, a plurality of through holes I are arranged on the barrel wall of the centrifugal barrel, filter cloth is mounted close to the inner wall of the centrifugal barrel, the barrel bottom of the centrifugal barrel is a smooth arc-shaped bottom surface, and a discharge port is arranged in the center of the bottom of the centrifugal barrel. The bottom of the centrifugal barrel is connected with a driving motor I through a transmission assembly penetrating through the outer barrel, the driving motor I drives the centrifugal barrel to rotate, a liquid outlet is formed in the bottom of the outer barrel, and the problems that in the prior art, micro-nano powder is difficult to wash and disperse, and agglomeration and hardening are prone to occurring when a conventional centrifugal machine is adopted for washing and dispersing are solved.

The invention relates to the technical field of centrifugal machines, in particular to a variable-frequency energy-saving automatic control system of a centrifugal machine, which comprises a centrifugal module used for separating materials according to the centrifugal machine to obtain a target product and comprising a driving motor used for providing centrifugal power; the data processing module comprises a data acquisition unit used for acquiring operation data of the centrifugal machine; the frequency conversion self-control module comprises a main MCU (Microprogrammed Control Unit) for outputting an adjusting strategy of the centrifugal machine according to a neural network model; the counting adjusting module is used for determining the counting frequency of the timer in the slave MCU according to the start-stop response duration of the driving motor; the feed-forward adjusting module is used for determining the feed-forward lead of the auxiliary motor according to the phase deviation value of the PWM signal; and the cache adjustment module is used for determining an operation data cache trigger threshold according to the slave MCU instruction response deviation duration. The real-time performance of frequency conversion self-control of the centrifugal machine is improved.

A portable centrifuge comprising a base, which includes a rotational mechanism contained within. A sequester wheel having a plurality of concentric rings, forming at least one channel and a central container. The at least one channel comprising a second volume and the central container comprising a first volume. A first cover is disposed over the sequester wheel to create a seal. A second cover is disposed over the first cover and is rotatable to engage with the rotational mechanism to initiate rotation at a predetermined RPM. The whole blood and / or other tissue is separated into its constituent components and deposited into the at least one channel and the central container. Specific volumes of the constituent components may be calculated to match or substantially match the first and second volumes for predetermined volume control and ease of access.

The invention relates to the technical field of centrifugal machine intelligent control, in particular to an intelligent control system of a high-speed centrifugal machine, and the system comprises a sensing module which is used for collecting operation state parameters of the centrifugal machine in real time, carrying out the synchronous sampling of the operation state parameters, and generating multi-mode operation data; the dynamic modeling module is used for correcting parameters of the dynamic physical model in real time so as to generate a characteristic parameter set reflecting the overall dynamic state of the centrifugal machine; the control execution module is used for adjusting the rotating speed and the running time of the centrifugal machine driving motor in real time to realize closed-loop control; the automatic control module is used for adaptively correcting control strategy parameters according to a learning result so as to generate a dynamically updated centrifugal control curve and sending the centrifugal control curve to the control execution module so as to execute real-time control; and the sample characteristic data module is used for storing the sample characteristic data. And the operation stability, the control precision and the self-adaptive capacity of the centrifugal machine can be improved.

The application relates to an exosome extraction centrifuge tube, which comprises a tube body, a first filter and a second filter, a sealing rubber cap is arranged at the upper end of the tube body, and the first filter and the second filter are arranged in the tube body in a spaced mode; the tube body comprises an upper branch pipe and a lower branch pipe, the lower branch pipe is provided with an annular groove, the upper branch pipe is provided with a connecting sleeve, the connecting sleeve can be inserted into the annular groove and is in threaded connection with the lower branch pipe, the first filter is located in the upper branch pipe, and the second filter is located in the lower branch pipe. The exosome extraction centrifuge tube is provided with the first filter and the second filter, so that the body fluid is filtered twice, thereby obtaining exosomes of a specified specification in the exosome extraction centrifuge tube at one time, and the exosomes do not need to be extracted through secondary separation, and the quality of exosome filtration and extraction is improved.

The utility model discloses a continuous separation device for oil residue-containing wastewater in a rare earth production process, which comprises a shunting pool, a Dole clarifying barrel, a horizontal screw centrifuge and a disc centrifuge, the shunting pool comprises a shunting pool body and an oil residue scraper, the shunting pool body is of a box body structure with an opening at the top, a track is arranged at the top of the shunting pool body, and the oil residue scraper is arranged at the bottom of the shunting pool body. An oil residue scraper is mounted on the track; the shunting pool body is provided with an oil collecting groove, a shunting pool oil discharging opening, a shunting pool water discharging opening, a slag collecting groove and a shunting pool slag discharging opening; the shunting pool oil discharging opening and the shunting pool slag discharging opening are respectively provided with a conveying pump and a control valve; an oil discharge port of the shunting pool is connected with a material inlet of the disc centrifuge through a pipeline, and a slag discharge port of the shunting pool is connected with a material inlet of the Dole clarifying barrel through a pipeline. According to the utility model, continuous oil-water-slag separation of the sulfuric acid rare earth transformation wastewater can be realized, so that the pretreatment efficiency of the rare earth transformation wastewater is improved.

The invention relates to the technical field of centrifugal machine control, in particular to a centrifugal machine temperature control parameter optimization method and system, and the method comprises the steps: collecting a plurality of parameters of a centrifugal machine, and constructing a sample data set; an XGBoost stage classification model is trained based on the sample data set, the working condition probability of the centrifugal machine is output, the chamber temperature and the refrigeration power of the centrifugal machine at the next moment are preset, and a temperature precision penalty coefficient, a temperature change rate risk coefficient and an energy consumption penalty coefficient are calculated; the weights of the temperature precision penalty coefficient, the temperature change rate risk coefficient and the energy consumption penalty coefficient are dynamically adjusted based on the proportions of the steady speed, the accelerated speed and the decelerated speed in the real-time working condition, an objective function is constructed, and a comprehensive control error is calculated; and multiple groups of historical data most similar to the working condition at the current moment are selected as reference data, all the reference data are traversed, the compressor rotating speed corresponding to the reference data with the minimum comprehensive control error is selected as the optimal rotating speed, the optimal rotating speed is issued to the compressor for execution, and the temperature control precision of the centrifugal machine is improved.

The invention discloses a centrifuge full life cycle intelligent analysis and operation and maintenance method. The method comprises the following steps: constructing a health scoring model which is based on an SAE-SOM neural network and comprises wavelet denoising and future parameter prediction functions; constructing an equipment life prediction model; a data set obtained from detection equipment is subjected to problem sample screening and normalization operation, and then a feedforward neural network is trained. And the hyper-parameter of the feedforward neural network is determined through a genetic algorithm. And a fault tracing model is constructed. The system is composed of a feature extraction network, a middle layer, a relation measurement network and a fault classification network. And establishing an equipment operation environment cross validation module. According to the invention, through mutual cooperation of the equipment health assessment module, the whole machine life estimation module, the fault alarm module, the early warning and traceability module, the operation environment cross validation module and the warning module, fusion analysis is carried out on key operation parameters of the centrifugal machine and external environment data; the method can be widely applied to water plants and other complex industrial scenes with high requirements for the operation reliability of key equipment.

The invention discloses a horizontal type spiral sedimentation disc centrifugal machine, and belongs to the technical field of centrifugal machines, a plurality of dispersing openings are formed in the outer wall of a spiral conveyor in the circumferential direction in an annular array mode, the dispersing openings are arranged into multiple sets in the axis direction of the spiral conveyor, and first sliding grooves are formed in the dispersing openings; a first sliding groove is formed in the middle of the disc, a first sliding block is arranged in the first sliding groove in a sliding mode, one end of the first sliding block is elastically connected with the inner end face of the first sliding groove through a first spring, and a torsion shaft is rotationally installed on the first sliding block. According to the centrifugal machine, the slag discharging speed can be increased through forward pushing, further dehydration can be achieved through backward extrusion, the stepped smashing effect of the discs and the fluid mechanics dispersing effect of the dispersing holes on the residues are combined, the residues can be effectively prevented from adhering and caking, the risk that the slag outlet is blocked is remarkably reduced, and continuous and stable operation of the centrifugal machine is guaranteed.

The utility model relates to the technical field of skin care product production, and discloses a low-speed table centrifuge convenient for fixing a test tube, the low-speed table centrifuge comprises a shell, the bottom of the inner wall of the shell is provided with a driving mechanism, the top of the driving mechanism is connected with a centrifugal frame, and the centrifugal frame is provided with a plurality of placing holes in an annular array; and clamping claws are arranged in the multiple placing holes. According to the low-speed table type centrifugal machine convenient for fixing the test tube, a push plate is matched with a telescopic rod to downwards apply pressure to a connecting plate, so that the connecting plate drives a plurality of swing rods to swing while moving downwards, the plurality of swing rods push a plurality of push rods, and the push rods push movable claws to move towards corresponding fixed claws; and the fixed claw is matched with the movable claw to clamp and fix the test tubes in the placing holes, so that the effects that the multiple test tubes can be conveniently and simultaneously clamped and fixed, the multiple test tubes do not need to be fixed one by one, the fixing speed of the multiple test tubes is increased, and the overall working efficiency of the centrifugal machine is improved are achieved.

This utility model discloses a conical drum device for a horizontal decanter centrifuge, relating to the field of horizontal decanter centrifuge technology. It includes a straight drum body and a conical drum body, with a positioning component between them. The positioning component includes an inner positioning groove fixedly formed on the inner wall of the end of the straight drum body, and an outer positioning groove fixedly formed on the outer ring of the end of the conical drum body. The outer and inner positioning grooves are interlocked. This utility model, through the installation of the positioning component, pre-positions the welding area between the straight and conical drum bodies before welding, thereby ensuring the welding quality. This solves the problem in existing horizontal decanter centrifuges where the conical and straight drum bodies cannot be pre-positioned before welding, leading to easy misalignment during welding and affecting the welding quality.

The utility model discloses an overload protection circuit breaking device of a light storage centrifugal machine, and relates to the technical field of overload protection circuit breaking. The circuit breaker comprises a circuit breaker body, and two ends of the circuit breaker body are provided with a plurality of wiring grooves. According to the utility model, the two rotation driving mechanisms approach to the two ends of the wire harness at the same time, then the two moving mechanisms drive the corresponding limiting mechanisms to move, and as the two limiting mechanisms and the moving mechanisms are installed in a sliding manner, the moving mechanisms play a role in guiding the sliding of the limiting mechanisms, and when the two rotation driving mechanisms rotate, the two rotation driving mechanisms are driven by the moving mechanisms to move. The two limiting mechanisms can get close to each other in the direction of the wire harness along the moving mechanism, and after the two limiting mechanisms move to the two ends of the outer wall of the wire harness, the outer walls of the two ends of the wire harness are limited and fixed, so that the situation that the wire harness is pulled by external force during follow-up equipment maintenance operation is prevented; and poor contact between the circuit of the optical storage centrifugal machine and the circuit breaker is caused.

This utility model discloses a continuous deoiling device for microcrystalline wax, including a sealed wax melting tank and a deoiling device. The sealed wax melting tank transports the mixture to the inside of a spiral plate heat exchanger via a variable frequency pump. The spiral plate heat exchanger is connected to a high and low temperature integrated machine, which can circulate and cool the coolant flowing inside the spiral plate heat exchanger. The spiral plate heat exchanger transports the crystallized mixture to the inside of a centrifuge. The centrifuge separates the crystallized wax from the filtrate through centrifugal action, and the separated filtrate enters the sealed filtrate tank for recycling. This utility model can achieve continuous deoiling of microcrystalline wax through the synergistic effect of components such as the sealed wax melting tank, variable frequency pump, spiral plate heat exchanger, and centrifuge. At the same time, the curved structure in the channel of the spiral plate heat exchanger forces the fluid to form a strong spiral flow. The high flow velocity and turbulence can scour the wall surface and prevent wax crystals or impurities from depositing.

The utility model relates to the field of medical instruments, and discloses a centrifugal mechanism of a full-automatic liquid-based cell slide-making and dyeing all-in-one machine, which comprises a liquid-based cell slide-making and dyeing all-in-one machine body, and a top cover is hinged on the outer wall of the liquid-based cell slide-making and dyeing all-in-one machine body. The inner wall of the liquid-based cell slide preparation and dyeing all-in-one machine body is slidably connected with a sedimentation cabin, a test tube is placed at the top of the sedimentation cabin, the outer wall of a top cover is rotatably connected with a gear, the outer wall of the gear is fixedly connected with a cleaning rod, and the inner wall of the top cover is fixedly connected with a sealing ring plate; a rotating disc is slidably connected into the inner wall of the sealing ring plate. According to the cleaning device, the ultrasonic transducer at the bottom end of the cleaning rod is matched with physical cleaning of the cleaning rod, stubborn stains and cell residues on the inner wall and the bottom of a test tube can be efficiently removed, the cleaning effect is remarkably improved, it is guaranteed that a sample is not interfered by impurities in subsequent liquid-based cell preparation dyeing operation, and the detection accuracy is improved.

The invention discloses a centrifugal machine structure capable of outputting two rotating speeds simultaneously and achieving continuous separation. Comprising a base, a motor, a rotating support, a supporting bearing, a lower-layer planet wheel, a gear ring, an upper and lower planet wheel transmission shaft, a protective cover, a pipeline support, an upper-layer planet wheel, a sun wheel, a high-speed rotating disc, a pipe clamp, a rotating bearing, a rotation axis, a revolution axis, a mixed liquid load and a mixed liquid load connecting pipeline. Only one motor is used for driving, and two speeds V1 and V2 which are the same in direction, different in size and fixed in proportion are output at the same time through transmission of an inner upper-layer gear structure and an inner lower-layer gear structure. The high-speed turntable is provided with the mixed liquid load and rotates at a high speed V2, and the pipeline support is provided with the mixed liquid load connecting pipeline and rotates at a low speed V1, so that the mixed liquid load connecting pipeline is prevented from being wound during rotation, continuous separation of mixed liquid containing various component particles is realized, the separation efficiency is greatly improved, and time and cost are saved.

The invention relates to the field of chemical equipment, in particular to a 1-nitroanthraquinone continuous production process based on a dynamic liquid membrane continuous flow reactor, which comprises a solid feeding device, a homogeneous emulsifier, a quenching kettle, a solid-liquid separator, a centrifugal separator and a dynamic liquid membrane reactor, a sulfuric acid storage tank is divided into two branches through a sulfuric acid feeding pump, one branch is connected to the dynamic liquid membrane reactor, the other branch is connected to the dynamic liquid membrane reactor through a flow self-control valve, the quenching kettle is connected to a solid-liquid separator, the solid-liquid separator is divided into two branches, one branch is connected to an anthraquinone crude product storage tank, the other branch is connected to a centrifugal separator, and the other branch is connected to a gas-liquid separator. The centrifugal separator is divided into two branches, one branch is connected to the acid water storage tank, and the other branch is connected to the dichloroethane storage tank, so that the reaction selectivity of the anthraquinone nitration reaction can be effectively improved, high-viscosity solids are prevented from being blocked, and the conversion rate of raw materials in the continuous reaction of the anthraquinone nitration reaction is improved.

This utility model provides an expansion joint cleaning device, comprising: a suction frame connected to a garbage collection bin for sucking garbage into the garbage collection bin; a suction assembly connected to a high-pressure centrifuge, wherein there is at least one suction assembly, which is fixed downwardly at least on one side of the suction frame for sucking up smaller pieces of garbage from the road and bridge expansion joint; a spray washing assembly hinged to the upper part of the suction assembly for rinsing up smaller pieces of garbage from the road and bridge expansion joint; and a sealing assembly rotatably installed at the lower part of the suction assembly for sealing the suction assembly. This utility model cleans the internal gaps of the expansion joint through high-pressure washing by the spray washing assembly, regardless of the depth of the expansion joint; and sucks up mud, garbage, and water used for cleaning from the expansion joint through the suction force of the suction assembly, achieving not only thorough cleaning of the internal gaps of the expansion joint but also collecting mud, garbage, and cleaning water all at once, ensuring a clean and aesthetically pleasing work site.

The application discloses a horizontal spiral concentration centrifugal machine for coal chemical industry and relates to the field of centrifugal machines, which comprises a machine shell, an inner rotating drum is arranged in the machine shell, a material distributing cavity is arranged in the inner rotating drum, countercurrent outlets and parallel flow outlets are arranged at positions corresponding to the material distributing cavity respectively, a boss is arranged in the material distributing cavity, countercurrent pressure tables and parallel flow pressure tables which are mutually symmetrical are arranged at positions corresponding to the countercurrent outlets and the parallel flow outlets respectively, sliding grooves are arranged on the two sides of the parallel flow pressure table, rotating shafts are slidably connected in the sliding grooves, and the rotating shafts are fixedly connected to sealing plates which are used for sealing the countercurrent outlets or the parallel flow outlets. The sealing plates can be slid to seal one of the outlets, so that the countercurrent discharging and the parallel flow discharging of the inner rotating drum can be conveniently switched, the inner rotating drum does not need to be disassembled, and only the ejector rod needs to be simply operated in the shutdown state, the shutdown time is effectively shortened, and the operation efficiency and the flexibility of the equipment are improved.

The application discloses a flow cytometry sample processing system and belongs to the technical field of automatic processing of biological samples. The flow cytometry sample processing system comprises a machine table, a flow tube block placing structure, a transfer mechanical arm, a shaking module and a centrifuge. The flow tube block placing structure is arranged on the machine table, a flow tube block is arranged on the flow tube block placing structure, a flow tube is arranged on the flow tube block, the transfer mechanical arm provided with a clamping jaw can integrally transfer the flow tube block provided with a clamping hole to the shaking module and the centrifuge, and the whole process automation is truly realized, and the sample centrifugal processing efficiency is improved.

The utility model relates to a kind of cooling plate structure for magnetic suspension bearing controller, including cooling plate, and inlet and outlet are arranged along diagonal on cooling plate, and cooling flow channel is communicated between inlet and outlet, which is set in the inside of cooling plate, cooling flow channel is composed of several mutually intersecting communication horizontal, vertical cooling flow channel, to facilitate refrigerant circulation, cooling plate can be placed in closed space, which can avoid the risk caused by condensate water and dust;Inlet and outlet are arranged at diagonal, and several mutually intersecting communication horizontal, vertical cooling flow channel make the whole cooling path course "S" shape, which is conducive to increasing the flow area of cooling, enhancing cooling effect;It is conducive to making refrigerant flow along the designed flow channel, improving the efficiency of cooling;It is conducive to temperature control of bearing controller, so that it keeps running in the optimum temperature range;It is conducive to long-term stable operation of magnetic suspension centrifuge.

To provide: a container for enhancing the processing capacity of a centrifuge; and a method for treating a treating target material using said container.SOLUTION: A container 100 is held on a rotation body of a centrifuge, the centrifuge comprising a revolution body revolvable around its revolution axis, the rotation body held on the revolution body and rotatable around its rotation axis, and a drive unit for applying, to at least one of the revolution body and the rotation body, a revolution / rotation force. The container comprises: a bottom wall portion 110 and a side wall portion 120; and a raised portion 130, which rises from the bottom wall portion 110 while contacting the side wall portion 120. The raised portion 130 comprises: an upstream side surface 132 facing an upstream side of rotation of the rotation body; and a downstream side surface 134 facing a downstream side of the rotation of the rotation body. The upstream side surface 132 and the downstream side surface 134 each have an inclined surface that is inclined relative to the side wall portion 120. The inclined surface of the upstream side surface 132 has a larger inclination angle than the inclined surface that the downstream side surface 134 has, relative to the side wall portion 120.SELECTED DRAWING: Figure 2

The utility model discloses a high automation vortex mixing device which comprises a main body and a protective cover, the protective cover is arranged on the outer side of the main body, the upper side of the main body is respectively provided with a PLC (programmable logic controller) and a touch screen, the lower side of the main body is provided with a vortex mechanism, and the main body is respectively provided with a vertically moving Z-axis moving mechanism and a horizontally moving Y-axis moving mechanism. The vortex mechanism is connected with the Y-axis moving mechanism, and the main body is provided with a cap dismounting / screwing mechanism connected with the Z-axis moving mechanism. The Z-axis moving mechanism and the Y-axis moving mechanism are used for driving the cap dismounting / screwing mechanism which moves automatically to carry out automatic cap dismounting and screwing operation on the centrifugal tube, so that the pollution risk caused by manual operation is avoided, and the full-flow standardization in a high-throughput experiment is realized.

According to the bag-pulling centrifugal machine for the energetic materials, the drum is rotationally installed in the barrel body, the through hole is formed in the drum, the feeding pipe is installed at the top of the barrel body, and particularly, the discharging opening of the feeding pipe faces the inner wall of the drum, so that the energetic materials are not prone to falling off in the input process of the energetic materials due to the structural design. Materials are directly sprayed out from the pipe opening of the feeding pipe to impact the inner side of the pull bag, after spin-drying, cleaning and re-spin-drying, the materials penetrate through the opening from the gap between the supports to be discharged out of the rotary drum, due to the fact that the diameter of the feeding pipe is not changed, energetic materials in the feeding pipe cannot be extruded in the feeding process, the explosion risk is reduced, and the production efficiency is improved. The problem that in the prior art, the explosion risk is too high when a bag-pulling centrifugal machine treats energetic materials is solved.

The invention relates to the technical field of horizontal screw centrifuges, and provides a high-speed horizontal screw centrifuge which comprises a machine base, a machine shell, a differential driving system, a rotary drum and a spiral conveying pipe, the machine shell and the differential driving system are installed on the machine base, the spiral conveying pipe is located in the rotary drum, and the spiral conveying pipe and the rotary drum are both in transmission connection with the differential driving system. The rotary drum is characterized in that a convex part extending outwards in the radial direction is arranged on the periphery of one end, close to the differential driving system, of the rotary drum, an end cover of the differential driving system covers the outer side of the convex part, and a seam allowance used for being fixedly connected with the differential driving system is formed in the convex part. By means of the technical scheme, the technical problem that in the prior art, material leakage is prone to being caused by connecting structures of the two ends and the end covers of the horizontal screw centrifugal machine rotary drum is solved.

The present application relates to the field of pressure test for testing the strength characteristics of solid materials with mechanical stress, in particular to a slidable vertical loading device for centrifuge shaking table shear box and its use method. The slidable vertical loading device for centrifuge shaking table shear box comprises a loading box (1), characterized in that: it further comprises a base (2), a main loading device (3), a loading panel (4) and a control device (5), the main loading device (3) comprises a support (31), a loading motor (32), an extension rod (33), a transmission mechanism (34), a connecting plate (36) and a loading rod (37); the loading panel (4) comprises an upper panel (41), a lower panel (42) and a rolling body (43). The use method of the slidable vertical loading device for centrifuge shaking table shear box is characterized by: sequentially implementing the following steps: S1. installation; S2. loading experiment. The present application is convenient to build and has strong adaptability.

The utility model relates to the technical field of centrifugal machine damping devices, and discloses a vertical scraper discharging centrifugal machine damping device which comprises a bearing plate, short columns are fixedly connected to the four corners of the bottom wall of the bearing plate respectively, first springs are fixedly connected to the four corners of the bottom wall of the bearing plate respectively, and second springs are fixedly connected to the four corners of the bottom wall of the bearing plate respectively. Limiting blocks are fixedly connected to the four corners of the bearing plate correspondingly, connecting plates are arranged on the two sides of the bottom wall of the bearing plate correspondingly, connecting columns are fixedly connected to the opposite surfaces of the connecting plates, and two sets of first long plates are fixedly connected to the two sides of the bottom wall of the bearing plate correspondingly. When the centrifugal machine works, the bearing plate is vibrated, the first corner spring firstly absorbs energy and buffers vibration, the damping assemblies on the two sides of the bottom wall are in linkage, the connecting block changes the angle to enable the second long plate and the sliding column to move, the second spring stretches out and draws back to absorb vibration, the multiple parts form a multi-dimensional damping system, the first spring is guaranteed to work normally through the limiting block, amplitude reduction and stable operation are achieved, and the system is stable; and the equipment reliability and life are improved.