429 results about "Screw press" patented technology

The invention relates to a screw press for separating filtrate from a feed material. It is characterised in that a sensor arrangement comprising a sensor for measuring the filtrate content is arranged in the discharge area, the feed material flowing towards and / or around the sensor. This allows simple, prompt, and accurate measurement of the filtrate content.

An energy-saving rolling support and radial symmetric hydraulic cylinder drum type intelligent braking structure of a screw press comprises a motor, the motor is fixed to an upper cross beam, an output shaft of the motor is connected with a gear, the gear is meshed with an outer ring gear on a flywheel, the flywheel and a first screw are connected and rotate together, and the top of the first screw is tensioned through a first nut; hydraulic cylinders are symmetrically arranged above the upper cross beam in the radial direction, hydraulic oil enters cavities of the hydraulic cylinders through oil conveying pipelines on the upper cross beam, advancing and retreating of piston push rods are achieved, drum brakes are installed on the front portions of the piston push rods, friction plates are symmetrically arranged on the end faces of the drum brakes, and when the piston push rods are ejected out, the friction plates make contact with the lower end faces of flywheels. Therefore, the braking of the screw rod mechanism is realized; according to the invention, the space is saved, and the braking sensitivity is improved; the friction loss of the screw press in the operation process is reduced, and the energy utilization rate is increased.

According to an example aspect of the present invention, there is provided a method comprising: providing a pulp composition; screening the pulp composition to obtain an accept fraction and a reject fraction; and dewatering the accept fraction output from the screening by a screw press.

The key groove milling tool is provided with a V-shaped block, a check block is installed at one end of a V-shaped sinking groove of the V-shaped block, and a flat position positioning block is installed at the other end of the V-shaped sinking groove of the V-shaped block; axial positioning screws are rotationally mounted on the stop blocks, and the axial positioning screws abut against the shaft end faces of the shaft parts to be used for axial positioning of the shaft parts with different lengths; the upper end face of the flat position positioning block is provided with a flat position positioning inclined face, the inclination angle alpha of the flat position positioning inclined face is equal to the included angle between a shaft part key groove and a flat position, and the flat position positioning inclined face makes contact with and is attached to the flat position of the shaft part. The V-shaped block is provided with a pressing plate, and the pressing plate downwards presses the shaft part and tightly presses and fixes the shaft part on the V-shaped block. The technical problem that the machining efficiency is low when a three-axis machining center is used for machining a shaft key groove and a milling key groove with the angle relation between the flat position and the shaft key groove is solved, the structure is simple and compact, economical and practical, clamping is convenient, the machining difficulty is reduced, the machining efficiency is improved, and universality is high.

The utility model discloses a high-energy screw press for inner flange processing, which comprises a shell and a base fixedly mounted at the lower end of the shell, a driving motor is fixedly mounted at the upper end of the shell, a threaded rod is fixedly mounted at the output end of the driving motor, and the surface of the threaded rod is in threaded connection with a threaded sleeve. The lower end of the threaded sleeve is fixedly provided with a lifting piece, and the left end and the right end of the shell are provided with limiting grooves. According to the high-energy screw press for machining the inner flange, when a lifting part descends, a limiting block slides downwards along the interior of a limiting groove, so that the limiting block extrudes a first air bag, the extruded first air bag conveys air in the first air bag through an air guide pipeline, the conveyed air enters a second air bag, and the second air bag conveys the air into the second air bag; therefore, the second air bag can expand to automatically jack up the protection plate when the second air bag is filled with air, and the protection plate is arranged, so that workers inside the device and outside can be isolated when the device works, and the workers are prevented from being easily and safely injured.

The invention provides a forging process of a single vacuum 300M gear forge piece, which comprises the following steps: step 1, blank making: upsetting and blind hole punching are carried out; (2) die forging is conducted, specifically, a forge piece obtained after blank manufacturing is heated to 1100 + / -10 DEG C, the heating and heat preservation time of a cold material is 50-110 minutes, during die forging, the blank is accurately placed in a die forging die, die forging is conducted through a 40MN electric screw press, and it is ensured that die forging is completed through one heating number; 3, heat treatment including normalizing and tempering is conducted, during normalizing, the forged piece is charged at the temperature smaller than or equal to 750 DEG C, heat preservation is conducted for 150-180 minutes at the temperature of 935 DEG C + / -10 DEG C, air cooling is conducted till the temperature is smaller than or equal to 600 DEG C, and then air cooling is conducted; and during tempering, the forge piece is charged at the temperature of less than or equal to 600 DEG C, is kept at the temperature of 720 + / -10 DEG C for 270-300 minutes, and According to the method, the forging process is optimized, deformation and temperature parameters are accurately controlled, and the special forging die is combined, so that efficient and high-quality production of the single-vacuum 300M gear forge piece is achieved.

The utility model relates to a garbage three-phase synchronous treatment system which comprises a garbage storage pool, a garbage transfer device, a primary screening mechanism, an ultra-high-temperature biological aerated filter and a secondary screening mechanism, and the primary screening mechanism comprises a shaftless screw feeder, a ball mill and a conical drum dewatering screen which are communicated with one another; the garbage transfer device is arranged between the garbage storage pool and the shaftless screw feeder, the ultra-high-temperature biological aerated filter is communicated with the conical drum dewatering screen, the secondary screening mechanism comprises a cyclone desander, a slurry dewatering screen and a screw squeezing dehydrator which are communicated with one another, the cyclone desander is communicated with the ultra-high-temperature biological aerated filter, and the slurry dewatering screen is communicated with the screw squeezing dehydrator. And the cyclone desander, the slurry dewatering screen and the screw squeezing dehydrator are all communicated with the shaftless screw feeder. According to the invention, the household garbage can be prepared into regenerated plastic particles or RDF fuel, can be used as asphalt and plastic filler, and can be used for producing various plastic profiles, road bricks and the like, so that the purposes of zero landfill and zero incineration are achieved, and the environmental benefit, the economic benefit and the carbon emission reduction effect are remarkable.

The utility model relates to a screw press clutch easy to maintain, and belongs to the field of screw presses, the screw press clutch easy to maintain comprises a press body, the press body comprises a screw rod, and the screw rod is vertically arranged; the flywheel is coaxially and rotatably connected with the screw rod; the cylinder body is located above the flywheel, a piston plate is arranged in the cylinder body, a sealing cavity is formed between the piston plate and the cylinder body, and the piston plate can move in the axis direction of the screw rod; a placing cavity is formed between the piston plate and the flywheel; the friction disc is located in the containing cavity and connected with the screw. The friction disc is provided with a friction block; the two abutting plates are connected to the sides, opposite to the flywheel, of the piston plate through bolts correspondingly. When the piston plate moves downwards, the friction block tightly abuts against the two abutting plates, so that the flywheel rotates to drive the friction disc and the screw to rotate, and when the piston plate moves upwards, the friction block releases the piston plate and the flywheel. The flywheel has the advantages that the maintenance difficulty caused by abrasion of the flywheel is reduced, and the maintenance cost is reduced.

The invention relates to the field of turning equipment, and discloses oil press pressing screw outer spiral machining equipment which comprises a rack base, an embedded stabilizing mechanism is located on an operation sliding table, and the embedded stabilizing mechanism is matched with an external rotary drum and a distribution guide rail of a guide roller shaft to be used for conducting circumferential clamping along the interior of a pressing screw blank. The linear traction mechanism is located on the center guide groove table, and the synchronous switching mechanism is located on the rack base and used for fixing thread groove cutting tools and synchronously switching the tools in cooperation with the side sliding table, the regulation and control screw rod, the linear opposite grooves of the center guide groove table and the U-shaped guide grooves of the linkage guide groove table. Synchronous clamping, fixing and rotating of two sets of pressing screw blanks are achieved through a concentric clamping mechanism and an opposite output mechanism which are symmetrically designed, double-station external spiral cutting is completed at a time in cooperation with a synchronous switching mechanism driven by linear traction, a mechanical structure that a center gear is in linkage with upper and lower opposite racks is adopted, strict synchronous movement of the clamping mechanisms on the two sides is ensured, and the working efficiency is improved. Machining errors caused by single-side stress are avoided, and meanwhile the power input requirement is simplified.

The invention relates to the technical field of kitchen environment-friendly treatment, in particular to an environment-friendly kitchen waste solid-liquid separation treatment device which comprises a screw press used for conducting solid-liquid separation on kitchen waste, a material blocking cover is arranged at the discharging end of a screw press body, and the bottom of the material blocking cover communicates with a material collecting cover. A fixing plate is mounted on the screw press body, and the fixing plate is used for fixing the material collecting cover; a discharging plate is fixedly mounted at the bottom of the material collecting cover; according to the screw press disclosed by the invention, the material blocking cover is arranged at the discharging end of the screw press body, so that extruded dry kitchen waste is ensured to fall onto the discharging plate through the material blocking cover and the material collecting cover; and therefore, the extruded dry kitchen waste can uniformly fall into the material receiving barrel through the multiple discharging holes, meanwhile, it is guaranteed that the dry kitchen waste falls into the material receiving barrel to be in a tiled state, and the effective volume utilization rate of the interior of the material receiving barrel is further increased.

The invention belongs to the technical field of water treatment, and particularly relates to a channel coupling type superfine grid based on water passing capacity improvement and an operation method thereof.The main body frame is connected with the bottom face of a fine grid channel through a first support, a water inlet baffle is further vertically arranged on the bottom face of the fine grid channel, and the water inlet baffle is buckled to the end, close to a water inlet, of a side plate; a cover plate of the fine grid channel is provided with a second support and a spiral squeezing groove; an equipment outer cover is buckled on a side plate and the spiral squeezing groove; a filtering grid plate is horizontally and fixedly arranged between the side plates, the two ends of the filtering grid plate are connected with the water inlet baffle and the slag guide plate respectively, and the slag guide plate is further connected with the spiral squeezing groove; a driving rotating shaft, a first driven rotating shaft and a second driven rotating shaft are arranged between the side plates; the driving chain wheel, the first driven chain wheel and the second driven chain wheel are connected through a transmission chain, and a slag scraping plate is arranged on the transmission chain. The problems of insufficient water passing capacity, separation grid slag penetration, high driving energy consumption and the like of a traditional fine / superfine grid can be solved.

The invention relates to the technical field of high-rise building elevators, and provides a high-rise elevator emergency air pressure slow descending device which comprises an elevator car, first wedge-shaped blocks fixed to the two sides of the elevator car, a plurality of slow descending mechanisms embedded in the two sides of an elevator shaft in a gradient mode and an air pressure bottom sinking mechanism arranged at the bottom of the elevator shaft. The multi-layer buffering mechanism combining non-Newtonian fluid damping, pneumatic pressurization and elastic supporting has the synergistic effect, the shear thickening effect of non-Newtonian fluid in the box body is activated through the stirring components (the spiral pressing pieces and the stirring blades), the fluid viscosity is greatly improved instantly when the lift car descends suddenly, dynamic damping force is formed, and the dynamic damping effect is achieved. The first air cylinder is used for compressing air to drive the air bag to expand, the reverse thrust assembly (the second air cylinder and the lower pressing plate) is combined to achieve conversion from air pressure energy to mechanical energy, secondary buffering is formed, non-linear and self-adaptive energy absorption is achieved through coupling of fluid mechanics (non-Newtonian fluid) and gas dynamics, and the device is particularly suitable for high-speed falling scenes.

This invention provides a sludge dewatering system, including a screw press dewatering machine, a sludge pump, a dosing pump, a stirrer, and a controller. The inlet of the screw press dewatering machine is connected to the outlets of the sludge pump and the dosing pump via pipelines. The outlet of the sludge pump is equipped with a sludge flow meter, the outlet of the dosing pump is equipped with a dosing flow meter, and the filtrate outlet of the screw press dewatering machine is equipped with a filtrate flow meter. The controller is electrically connected to the sludge pump, the dosing pump, the stirrer, the sludge flow meter, the dosing flow meter, and the filtrate flow meter. The screw press dewatering machine has a screw pitch of 3-4 mm, a screw shaft diameter of 40-55 mm, a screw shaft compression ratio of 2-3.5, a screw shaft rotation speed of 3-7 rpm, and an outlet pressure of 0.02-0.04 MPa. The sludge dewatering system of the present invention can adjust the moisture content of the dewatered sludge to between 85% and 95%, provided that the sludge feed rate is stable at 400-680 kg·ds / h and the sludge feed moisture content is between 99% and 96%.

The invention relates to the technical field of processing machine tools, in particular to screw crimping equipment with an automatic transposition keeping function and an automatic transposition keeping method. The locking disc is fixedly connected with the rotating disc, and a plurality of sets of limiting grooves are formed in the locking disc; the elastic structure is matched with the limiting groove and can axially lock the rotating disc; the driving assembly is arranged in the box body, and the driving assembly can drive the rotating disc to rotate; and the follow-up assembly is connected with the driving assembly, and before the driving assembly drives the rotating disc to rotate, the follow-up assembly can be matched with a one-way deflection piece arranged on the elastic structure, so that the elastic structure is separated from the limiting groove, and the machining precision is improved.

To provide maintenance of both the flow rate of coagulated sludge supplied to a dehydrator and a water content of a dehydrated cake discharged from the dehydrator in a prescribed range.SOLUTION: A control unit (10) includes an acquisition unit (101) for acquiring measurement data including at least a flow rate of coagulated sludge supplied to a screw press type dehydrator that dehydrates the coagulated sludge during transportation, a prediction unit (102) for predicting a water content of the dehydrated cake to be discharged from the dehydrator at a point in time when a residence time has elapsed from the measured on-time point of the measurement data by using the measurement data, and an indication unit (103) for indicating a rotational speed of a screw so that the flow rate of the coagulated sludge falls within a first predetermined range if the flow rate of the coagulated sludge is outside the first predetermined range while indicating the rotational speed of the screw so that the water content of the dehydrated cake falls within a second predetermined range if the flow rate of the coagulated sludge is within the first predetermined range and a predicted value of the water content of the dehydrated cake is outside the second predetermined range.SELECTED DRAWING: Figure 1

The slag stopping device comprises a base, a plurality of fastening screws and two slag stopping discs, the base is provided with a plate portion and bending portions at the two ends, the plate portion is installed on a trolley body, the fastening screws are in threaded connection with the two bending portions respectively, the two slag stopping discs are each provided with a disc body and an elastic plate stacked on the disc body, and the elastic plates are connected with the plate portion in a threaded mode. The slag stopping disc is assembled between the bent parts at the two ends of the plate part in a drawable mode, the slag stopping disc abuts against the base through the fastening screws, the two disc bodies jointly define a second receding hole, the two elastic plates jointly define a third receding hole, and the third receding hole is located in a projection area, in the thickness direction of the slag stopping disc, of the second receding hole. And the moving track of the drill rod passes through the third avoiding hole. Rock which can directly impact a mechanical arm, a drill pipe warehouse and drill pipe warehouse accessory equipment near a drill pipe during drilling operation can be blocked as much as possible through the elastic plate, and the service life of the mechanical arm, the drill pipe warehouse and the drill pipe warehouse accessory equipment is prolonged.

The miniature rotary integral Stirling cryocooler comprises a crankcase, a compression piston assembly, a pushing piston assembly and a motor component, and the motor component comprises a motor stator assembly, a rotor spring assembly and a rotor protection sleeve; the compression piston assembly, the pushing piston assembly and the rotor spring assembly are all arranged in the crankcase, the motor stator assembly is arranged above the crankcase, and the crankcase and the rotor protection sleeve are pressed and fixed through a threaded clamping ring. The compression piston assembly is connected with the pushing piston assembly through a connecting rod, the compression piston assembly is connected with the rotor spring assembly through a connecting rod, and the motor stator assembly and the rotor spring assembly are isolated through a rotor protection sleeve. According to the embodiment of the invention, the radial size of the crankcase can be reduced through a sealing and pressing structure which replaces screw pressing and fixing through threaded clamping ring pressing and fixing, so that the height of the refrigerator is reduced, the weight of the refrigerator is reduced, and the miniaturized design of the rotary integral Stirling refrigerator is realized.

The invention discloses an automatic processing device for a gear module, which relates to the technical field of gear processing and assembly, including a press-fitting component, a feeding component, a marking component and a screw driving machine. The invention adopts multiple feeding components, which can realize the simultaneous feeding of multiple screws, and simultaneously perform installation operations on multiple screws under the action of the press-fitting component and the screw driving machine. Compared with the traditional method, the assembly efficiency is significantly improved. After the feeding component is completed and continues to move forward, it can use a paddle to drive the marking component to rotate a certain angle, and the marking component will then brush a mark on the side of the gear component, so that the marking processing of the gear component can be realized while pressing and fitting.

The centrifugal machine feeding and compressing device comprises a feeding valve assembly and a spiral material pressing assembly, the upper end of the feeding valve assembly is fixedly connected with the spiral material pressing assembly, the upper end of the spiral material pressing assembly is connected with a thickener, the discharging end of the feeding valve assembly is connected with a feeding pipe, and the discharging end of the feeding pipe is connected with a screw rod. The tail end of the feeding pipe is connected with the centrifugal machine, the feeding valve assembly comprises a stirring part and discharging valve parts, the upper end of the stirring part is connected with the spiral material pressing assembly, at least one discharging valve part is arranged on the circumferential surface of the side of the upper end of the stirring part, and the discharging valve parts are connected with the feeding pipe. According to the efficient anti-blocking centrifugal machine feeding compression device, it is ensured that materials enter a centrifugal machine at the stable speed and pressure to be separated, and therefore the efficiency and effect of the centrifugal separation process are greatly improved.

The utility model relates to the technical field of grape wine, and discloses a screw press for grape wine production, which comprises a press case frame and a loading plate, the front side of the press case frame is fixedly connected with a controller, the upper surface of the press case frame is fixedly connected with a cover plate, and the upper surface of the press case frame is fixedly communicated with a feed port; a stepping motor is arranged on the outer side of the squeezer box frame, the inner wall of the squeezer box frame is fixedly connected with the outer surface of the carrying plate, and the output end of the stepping motor is fixedly connected with a spiral shaft. According to the screw press for wine production, through the arrangement of the controller, the stepping motor, the centrifugal machine, the filter box, the water suction pump, the filter screen, the blocking plate and the press machine box, grape juice and grape pulp can be effectively separated, later-stage wine production is facilitated, the stepping motor is controlled by the controller to work, and the wine production efficiency is improved. The stepping motor drives the spiral shaft to work under the supporting effect of the squeezer box, and squeezing of grapes is achieved.

To provide a water stop mechanism of a discharge part in a screw press which can prevent leakage of a cleaning liquid from a discharge part and prevent the cleaning liquid from flowing into a dehydrated cake discharged into a cake chute, by moving along an axial direction a pressing plate disposed to face the discharge part of a filtration chamber and cleaning an outer cylinder screen in a state where the discharge part is closed.SOLUTION: A screw press comprises a pressing plate 13 which is axially movable, expanded in diameter, tapered toward a discharge direction, and disposed in a discharge part 12 of a dehydrated cake. The screw press further comprises a base part 21 having a pressing surface 24 arranged on a tapered surface of the pressing plate 13, in parallel to a discharge-side end surface 22 of an outer cylindrical screen 5, and thereby, the discharge part 12 of a filtration chamber 16 can be water-tightly closed so as to be able to prevent the cleaning liquid from leaking from the discharge part 12.SELECTED DRAWING: Figure 2

A faucet assembly and a locking device for securing a faucet to a mounting table to which the faucet assembly is mounted. The faucet assembly includes a spout that discharges fluid therefrom. The base is mounted on the first surface of the mounting table and between the nozzle and the mounting table. The base is sized and shaped such that the base cannot pass through the channel of the mounting table when mounted on the first surface. The base is connected with a mounting handle, and the mounting handle is inserted into the channel. The mounting handle has a circular outer surface with an external thread thereon. The nut includes a tube section having an inner wall with internal threads. The inner wall defines a channel sized to receive a mounting shank such that the internal thread of the inner wall engages the external thread. A cantilever including a threaded through-hole extends from an outer wall of the tube section. An externally threaded screw is screwed through the threaded through hole until the distal end of the screw presses against the second surface of the mounting table and biases the internal thread of the tube section against the external thread of the mounting shank, thereby securing the faucet assembly to the mounting table.

Arrangement (1) for pasteurizing and subsequently separating solids from a slurry containing solid and liquid components, comprising: • a heating device (2) for heating the slurry containing solid and liquid components, • a storage container (5) for the slurry upstream of the heating device (2), namely a biogas plant, • a pasteurization device (3) downstream of the heating device (2) for pasteurizing the slurry containing solid and liquid components, • a pressing device (4), preferably a screw press separator, further downstream for separating the solids from the previously pasteurized slurry, • a combined heat and power plant (7) that can be operated by burning a gas phase (6), preferably biogas, escaping from the slurry stored in the storage container (5), wherein the heating device (2) for heating the slurry is designed to utilize at least part of the waste heat from the combined heat and power plant (7).and• a gassing vessel (8) for directly heating the slurry contained therein by direct supply and / or dispersion of a waste heat stream (13), namely a hot exhaust gas stream, from the combined heat and power plant (7) into the slurry.

The utility model discloses a ceramic conduction slurry hole filling processing device, including seal cover, the even several air holes of seal cover top surface are equipped with, the both sides of seal cover top surface near edge all have the bonding of clamping block, the movable joint of seal cover top surface has the bottom plate, the vacuum chuck of being equipped with in the bottom plate inside the air hole top, the both sides of bottom plate surface all are fixed with the mounting of connecting plate, the one side of connecting plate surface is located the fixed mounting of lantern ring in the position of screw hole, the both sides of lantern ring and connecting plate all are installed with the screw press bar of penetrating, the gasket of movable installation of screw press bar other end, the fixed mounting of holding lever of connecting plate top surface, this device is equipped with the vacuum chuck of soft texture in the air hole top, can effectively solve the problem of poor adsorption effect caused by the uneven surface of ceramic base.

This invention relates to the field of water pollution technology, specifically to a screw press sludge dewatering device for wastewater treatment. It includes a dewatering chamber, and further comprises: a drive shaft rotatably connected between the sludge inlet chamber and the sludge discharge hood; a variable-pitch screw shaft mounted on the drive shaft and located within both the sludge inlet chamber and the dewatering chamber; a sleeve movably fitted onto the drive shaft, with a back pressure plate fixed to its outer wall within the sludge discharge hood, the back pressure plate having a plurality of sludge discharge holes evenly spaced circumferentially; and a fixing ring fixed to the drive shaft and located outside the back pressure plate, with a plug corresponding to each sludge discharge hole fixed on the side of the fixing ring closest to the back pressure plate. This invention, by configuring the sleeve, back pressure plate, sludge discharge holes, fixing ring, plugs, and axial movement mechanism, allows switching between two sludge discharge modes according to sludge characteristics, achieving efficient adaptability of the equipment to different operating conditions.

The invention discloses an oil press for refining rice bran oil. The oil press comprises a stirring barrel, a stirring assembly and a stirring driving device, wherein the stirring barrel is used for containing rice bran mixed pulp to be subjected to enzymolysis; the stirring assembly is arranged in the stirring barrel and is connected with a heating device; the rice bran pulp mixing device comprises a stirring assembly, a stirring barrel arranged in the stirring assembly, a heat conduction oil circulating cavity arranged in the stirring assembly and used for circularly conveying heat conduction oil, a jacket arranged on the outer side of the stirring barrel and used for circularly conveying temperature control liquid, a controller, a first temperature detection device arranged in the stirring barrel and used for detecting the rice bran pulp mixing temperature, and a second temperature detection device arranged in the stirring barrel and used for detecting the rice bran pulp mixing temperature, the controller adjusts the temperature of the stirring assembly based on the comparison result of the rice bran pulp mixing temperature detected by the first temperature detection device and the rice bran pulp mixing set temperature. According to the oil press for refining rice bran oil, uniform heating of the stirring barrel is achieved, and the temperature difference of rice bran pulp mixing in the stirring barrel is reduced.

The utility model relates to the technical field of vibration control, in particular to a vibration reduction foundation of a screw press. The device comprises a foundation and a foundation block, the foundation block is embedded in the foundation, the device further comprises an anti-torsion buffering device and a back pressure device, and the anti-torsion buffering device comprises a limiting baffle and an anti-torsion elastic buffering component; the back pressure device comprises a back pressure plate and a foundation bolt, a buffer gap in the horizontal direction is reserved between the assembly through hole and the foundation bolt, the foundation bolt is sequentially matched with the assembly through hole and the installation through hole from bottom to top, and the press machine base and the back pressure plate are fixed to the foundation block. The vibration reduction foundation of the screw press is simple in structure, long in service life and capable of optimizing stress in the working process of equipment and preventing the equipment from being damaged, thereby effectively improving the utilization rate of the equipment and the machining precision of the equipment, being beneficial to improving economic benefits and being suitable for popularization and application. The method can be suitable for basic vibration control of various friction type screw presses and electric direct-drive screw presses, and the application prospect is very wide.

A method and system for preparing forged structural parts from TC6 material are disclosed. First, TC6 bar stock is sawn, and the β-phase transformation temperature (Tβ) of the sawn TC6 bar billet is measured. Then, the billet is heated to a high temperature (Tβ-40) ±10℃ in an electric furnace and held to obtain a pre-treated TC6 bar billet. Next, the pre-treated TC6 bar billet undergoes a series of processes in sequence: small-end aggregation, flat forging, bending, flat forging, large-end aggregation, flat forging, large-end forming, flat forging, and intermediate billet treatment to obtain a secondary-treated TC6 bar billet. This secondary-treated TC6 bar billet is then heated to a high temperature (Tβ-40) ±10℃ in an electric furnace and held to obtain a billet to be forged. Finally, it is forged using an electric screw press, followed by heat treatment, isothermal annealing, and physicochemical testing to obtain the machined TC6 material structural part. Finally, the parts are inspected, and qualified parts are stored in the warehouse. This process yields qualified structural parts.

The invention relates to the technical field of sludge dewatering, and discloses an efficient sludge dewatering screw press which comprises a first fixing frame, a driving machine is fixedly connected to the top of the first fixing frame, a machine box is fixedly connected to the side wall of the driving machine, and a second fixing frame is fixedly connected to the inner wall of the machine box. A compression assembly is arranged in the equipment, a sliding blocking block is located in a gap of a spiral fan blade before being used, when the spiral fan blade rotates and drives sludge to move towards a discharging box, the spiral fan blade drives a sliding block to slide along the inner wall of a sliding rail through the sliding blocking block at the same time, and in the process, the sliding block can slide along the inner wall of the sliding rail. As the sliding blocking block is always inserted into the inner wall of the sliding rail, and a single position gap of the sliding rail is reduced, the flowing speed of sludge is slowed down, and through the application of the components, the situation that the squeezing effect of equipment is influenced by reverse flowing caused by the reduction of the distance between the sliding rails is effectively prevented.

This application provides a device for repeated cold pressing of camellia fruit, relating to the field of camellia fruit cold pressing technology. It includes a first support frame, with a cold pressing mechanism mounted on top of the first support frame. The cold pressing mechanism includes a screw press connected to a feeding hopper. The screw press has a liquid outlet and a solid outlet. A crushing box is located on one side of the first support frame at the solid outlet of the screw press. The crushing box has a crushing structure, and a collection box is connected to the bottom of the crushing box. The collection box is connected to an auger conveyor, which is connected to a discharge pipe, the bottom end of which extends into the feeding hopper. Through the crushing box, solid fibers discharged from the solid outlet of the cold pressing mechanism are crushed by the crushing structure and then conveyed to the feeding hopper via the auger conveyor and discharge pipe. The cold pressing mechanism automatically and repeatedly cold presses the solid fiber powder, eliminating the need for manual handling and feeding, thus reducing the labor intensity of workers.