33results about How to "Easy to cause blockage" patented technology

The invention relates to a lunar soil "concrete" and a preparation method thereof, which are mainly used in technical fields such as aerospace, aviation, and architectural coatings. The lunar soil "concrete" hybrid 3D printing technology is an important key technology for the construction of the future lunar base. The lunar soil simulant hybrid 3D printing device can realize continuous and controllable printing by designing the lunar soil simulant hybrid 3D printing head. Extrusion of lunar soil "concrete". The hybrid 3D printing head is a key component of the lunar soil hybrid printing device, which is used to realize the continuous and controllable extrusion of lunar soil "concrete". It is a functional component that integrates drive motors, couplings, screw pumps, interfaces, screw extrusion devices, printing nozzles and other components to realize the continuous and controllable extrusion of lunar soil "concrete" materials.

The invention provides a pure powder granulation negotiable machine and belongs to the field of medical instruments. The pure powder granulation negotiable machine comprises a feeding device, a roller pressing device, a granulating device and a negotiable device; the feeding device is located on the upper portion of the roller pressing device, and the granulating device is arranged between the roller pressing device and the negotiable device; the feeding device is provided with a feeding screw inside; the granulating device comprises a smashing mechanism and a granulating mechanism, and a discharging hopper is arranged below the granulating mechanism and is connected to the feeding port of the negotiable device. A radial blade and drum of the smashing mechanism are integrated as designed, a fixing bolt is arranged inside the drum, the end of the smashing mechanism is provided with the blade, the smashing dead corner is avoided, the integral production of granulating and negotiable is implemented, pure powder negotiable can be implemented, additives and water are omitted, and the producing efficiency can be improved effectively.

The invention relates to a coal and oil coprocessing method and device. The coprocessing method comprises steps as follows: step one, oil slurry pretreatment: heavy oil, a non-hydrogenated cycling solvent and a first catalyst are mixed, oil slurry is prepared and subjected to first hydrocracking reaction, a first product is obtained and separated, and first light distillate oil and first heavy distillate oil are obtained; step two, coal and oil coprocessing, solvent oil circulation and finished product separation. The coprocessing device comprises an oil slurry pretreatment device, a coal and oil coprocessing device body, a solvent oil circulating device and an oil product quality improving device. According to the coal and oil coprocessing method and device, selectivity for the heavy oil during coal and oil coprocessing is reduced, the percentage amount of pulverized coal in a coal and oil coprocessing process is increased, and the coal and oil coprocessing method and device are more suitable for practical application.

The invention relates to a lunar soil concrete suitable for extrusion and a preparation method thereof, which are mainly used in technical fields such as aerospace, aviation, and architectural coatings. The lunar soil "concrete" hybrid 3D printing technology is an important key technology for the construction of the future lunar base. The lunar soil simulant hybrid 3D printing device can realize continuous and controllable printing by designing the lunar soil simulant hybrid 3D printing head. Extrusion of lunar soil "concrete". The hybrid 3D printing head is a key component of the lunar soil hybrid printing device, which is used to realize the continuous and controllable extrusion of lunar soil "concrete". It is a functional component that integrates drive motors, couplings, screw pumps, interfaces, screw extrusion devices, printing nozzles and other components to realize the continuous and controllable extrusion of lunar soil "concrete" materials.

The invention discloses a liquid cooling radiator capable of improving heat dissipation effect. The liquid cooling radiator comprises a water tank body, a connecting mechanism, a heat dissipation mechanism and a filtering mechanism, wherein the connecting mechanism is arranged on the water tank body. Through mutual cooperation of heat dissipation fins, connecting blocks, first heat conduction blocks, heat conduction pieces, second heat conduction blocks, clamping blocks, clamping grooves, fixing bolts, fixing blocks and fans, the heat dissipation effect of the liquid cooling radiator is greatly improved, and heat dissipation efficiency is improved; the directions of the two fans can be changed according to needs in a later period, so applicability is greatly improved; and through mutual cooperation of a top block, a sealing plug, a filter screen, a limiting block, a limiting groove, a pull block and a baffle, impurities can be conveniently filtered and intercepted, pipeline blockage caused by too many impurities is avoided, the situation that the liquidity of liquid is greatly influenced by pipeline blockage is avoided, heat dissipation effect is prevented from being influenced, practicability is improved, and great convenience is brought to a user.

The invention discloses a sugar boiling pot capable of recycling waste heat. The sugar boiling pot comprises a pot bottom, a steam chamber and a steam drum, wherein the pot bottom is provided with a feed pipe and a massecuite outlet, a juice catcher and a juice steam outlet are formed in the steam chamber, a steam condensate drainage pipe, a heating steam inlet pipe and a non-condensable gas drainage pipe are arranged on the steam drum, and an outlet of the non-condensable gas drainage pipe is connected to the feed pipe; two non-condensable gas inlets, namely a non-condensable gas lower inlet and a non-condensable gas upper inlet, are formed in the non-condensable gas drainage pipe; the distance from the non-condensable gas lower inlet to a lower tube plate is 100-200mm; the non-condensable gas upper inlet is formed above an upper tube plate with a distance of 5-10mm; and a valve is arranged on the non-condensable gas drainage pipe and is used for controlling the on-off and quantity of the discharge of non-condensable gas. According to the sugar boiling pot disclosed by the invention, syrups or molasses can be heated by using the heat of the non-condensable gas, and the heat energy of the non-condensable gas can be recycled so as to ensure that the problem that the non-condensable gas is directly discharged to cause energy waste in a conventional sugar boiling process can be solved.

The invention discloses a warm insulation device for a subway passage, comprising a subway passage, a blower is installed on the top of one side of the subway passage, and the air outlet end of the blower is connected with an air outlet pipe extending along the top of the subway passage. The lower end of the air outlet pipe is equidistantly provided with a plurality of air outlets, a solenoid valve is installed at the corner of the end of the air outlet pipe, and a fan blade is arranged inside the end of the air outlet pipe, and the fan blade is connected with a connecting shaft. The ground of the subway channel is provided with a drainage groove, the bottom of the drainage groove is connected with a drainage pipe, the notch of the drainage groove is covered with a spacer, the inner wall of the drainage groove is horizontally provided with a mounting groove, and the connecting shaft The lower end of the lower end extends into the installation groove, and the inner wall of the installation groove is rotatably connected with a reciprocating lead screw. The invention has a reasonable structure, can form an air curtain to isolate warm gas, reduce the electric energy required for air-conditioning and cooling, and can timely absorb accumulated water on the screen.

The invention discloses a material screening device, which comprises a first support plate, a second support plate is fixed on one side of the top end of the first support plate, and a third support plate is fixed on the end of the second support plate away from the first support plate, And the first support plate and the third support plate are arranged in parallel, the top side of the first support plate is fixed with a rotary motor, and the output shaft of the rotary motor passes through the third support plate and is fixed with a circular feed box. The invention can rotate the feeding box to complete intermittent feeding, preventing excessive feeding at one time, which is easy to cause blockage, and at the same time, can carry out agitation, dust removal and intermittent feeding through one driving source, which improves the practicability. The materials can be vibrated and screened, collected separately, which improves the convenience, and the collected materials can be dropped into the collection bags one by one for packaging, which improves the practicability. Various mechanical transmissions in the present invention pass through one driving source Realized, the equipment cost is low.

The invention belongs to the technical field of glass homogenizing treatment equipment, and particularly relates to a building glass homogenizing furnace. The building glass homogenizing furnace comprises a furnace body, a fan and a heater, wherein an air inlet and an air outlet are formed in the furnace body; the inside of the furnace body is separated into a heating chamber, heating cavities, anair inlet passage and an air outlet passage; a built-in air passage communicated with the air inlet passage is arranged in the heating cavity; a lug boss is arranged above the built-in air passage; afirst steel wire net, a second steel wire net and a third steel wire net are sequentially and vertically arranged between the lug boss and the bottom of the furnace body from the left side to the right side; sliding blocks are arranged under the first steel wire net, the second steel wire net and the third steel wire net and are used for taking out the first steel wire net, the second steel wirenet and the third steel wire net for cleaning; a movable plate is arranged on the air inlet passage. The temperature of the air can be more uniform when entering a position between the heating cavities; the effects of the hot air on glass reaction can be improved; the glass homogenizing effect is improved; the product quality is improved; the production cost is reduced.

The invention provides a nano-cellulose composite material and its preparation method and application. The present invention uses nano-cellulose as raw material, adopts TEMPO / NaClO / NaBr oxidation system to oxidize nano-cellulose, uses hexadecylamine as a monomer to carry out amidation modification on the oxidized nano-cellulose, and adds natural vegetable oil to flow The extended method is used to prepare the film, and under the condition of negative pressure, the film is impregnated with polyurethane acrylic resin, and the obtained nano-cellulose composite material not only has the biodegradability and recyclability of cellulose, but also endows the composite material with good hydrophobicity. , thermal expansion resistance, flexibility and light transmittance, it is an ideal flexible screen matrix material, and has broad application prospects in the field of flexible screen matrix materials.

The invention relates to the technical field of door and window machining and specifically discloses a door pocket groove-milling device which comprises a bed body, a feeding mechanism and a groove-milling machining mechanism, wherein the feeding mechanism and the groove-milling machining mechanism are arranged on the bed body. The feeding mechanism comprises a plurality of feeding rollers rotatably connected with the bed body. The bed body is provided with a first driving mechanism for driving the feeding rollers to rotate. The groove-milling machining mechanism comprises a tool apron fixed on the bed body and a plurality of milling cutters, wherein the milling cutters are arranged in the feeding direction of the feeding mechanism in sequence. The milling cutters are rotatably connected with the tool apron and a datum face used for limiting door plank edges is arranged on the tool apron. In the feeding direction of the feeding mechanism, a vertical distance between a rotating center of the milling cutters and the datum face increases gradually. The vertical distance of a plane passing through a rotating center of two adjacent milling cutters and being parallel to the datum face issmaller than the diameter of the milling cutters. A second driving mechanism used for driving the milling cutters to rotate is arranged on the bed body. The door pocket groove-milling device can reduce cutting quantity and loads of the milling cutters and lower damage probability of the milling cutters when milling a groove.