176results about How to "Avoid gathering" patented technology

The utility model relates to the technical field of plastic particle processing, in particular to a drying device for a plastic granulator, which comprises a drying box, and a conveying mechanism and a shifting mechanism are mounted in the drying box. A plurality of fixing rods are arranged in the water mechanism, so that plastic particles falling on water filtering plates are dispersed, the plastic particles are prevented from being gathered, the plastic particles make full contact with the water filtering plates for dehydration, and under the action of the two water filtering plates, the flowing path of the plastic particles in the vibration water removal process is prolonged; meanwhile, plastic particles on a water filtering plate are prevented from directly sliding into the drying box, it is guaranteed that the plastic particles are fully vibrated, meanwhile, under the action of a guide plate and two pieces of absorbent cotton, the plastic particles subjected to vibration water removal are wiped again and then guided into the drying box, water retention on the surfaces of the plastic particles is avoided, and the drying effect is improved. And therefore, water on the surfaces of the plastic particles fully falls off, and the drying uniformity and drying efficiency of the plastic particles are improved.

The utility model relates to battery technical field discloses a battery and battery package, a kind of battery, including shell, cover plate, electric core and baffle;Shell has accommodating cavity and open mouth;Cover plate is capped in open mouth, and cover plate is equipped with liquid injection hole;Electric core is located in accommodating cavity;Baffle is connected to the one end of electric core in first direction close to cover plate;Along first direction, the orthographic projection of liquid injection hole on auxiliary plane falls into the orthographic projection range of baffle on auxiliary plane;Wherein, along first direction, the size of baffle is hmm, and the spacing distance between electric core and cover plate is H1mm satisfy: 0.5<=h / H1<=0.8;The battery of the utility model sets up baffle on electric core, and baffle can guide electrolyte from liquid injection hole into accommodating cavity, to avoid forming liquid seal phenomenon, improve electrolyte overall infiltration efficiency;By limiting 0.5<=h / H1<=0.8, can realize the uniform infiltration of electric core from bottom to top, improve the coverage degree of electrolyte to pole piece and diaphragm.

The invention discloses a novel antifreeze polypeptide with a clear structure and excellent performance and a protection method of cryopreserved cells. The core structure of the polypeptide is formed by covalently connecting two functional modules, the N end is a unit with ice crystal binding performance, the C end is a super-hydrophilic unit, and the two functional modules are bridged through a flexible linker. Experimental verification shows that the synthetic polypeptide shows excellent anti-freezing activity, can significantly inhibit nucleation, growth and recrystallization processes of ice crystals, and has particularly outstanding ice recrystallization inhibition activity. The novel antifreeze polypeptide shows excellent biocompatibility, and is suitable for low-temperature cryopreservation of cells sensitive to freezing damage and other living microbial preparations. Results show that the polypeptide can greatly improve the freeze-drying survival rate of cells and the activity of the cells after recovery, is non-toxic to the cells, and shows the potential of replacing a traditional cryoprotectant. Therefore, the method has wide application prospects in food industry, biological medicine, agricultural breeding and low-temperature preservation technologies of biological sample libraries.

The application discloses an array substrate and a liquid crystal display panel, and belongs to the technical field of display. The array substrate has a plurality of sub-pixel regions. The array substrate comprises a substrate, and a sub-pixel, a first insulating layer, a common electrode and a first supporting column located on one side of the substrate. The sub-pixel comprises a transistor and a pixel electrode, and the first insulating layer is located between the transistor and the pixel electrode in a direction perpendicular to the substrate. In the same sub-pixel region, the first insulating layer comprises a first via, and the pixel electrode is overlapped with a first electrode of the transistor through the first via. One first supporting column corresponds to two first vias adjacent in a first direction. For the corresponding first supporting column and two first vias, the first supporting column has a part extending into the two first vias, and in the first direction, the maximum width of the first supporting column located in the first via is less than the maximum width of the first via. In this way, the uniform distribution of the guide liquid can be ensured, and the display uniformity is improved.

The application belongs to the technical field of oil and gas exploitation, and relates to a kind of amphiphobic nano oil displacement agent and a preparation method thereof, which takes nano silicon dioxide as the core, is modified by amino silane coupling agent and hydrophobic silane coupling agent in sequence respectively, and forms dumbbell-shaped prepolymer after mixing; then is grafted by perfluoroalkyl silane coupling agent to give it hydrophobic and oleophobic properties; finally is crosslinked and solidified by epoxy silane coupling agent to form a three-dimensional network structure. The obtained oil displacement agent has excellent amphiphobicity, high temperature and high salt stability and adsorption resistance, can effectively enter the low permeability oil reservoir pore throat, and significantly improves the oil recovery. The preparation method has simple process and mild conditions, is suitable for large-scale production, and has good application prospect in improving the efficiency of oil and gas exploitation.

The utility model relates to the technical field of washing machines, and discloses a drying device for an embedded bathroom cabinet washing machine all-in-one machine, the drying device comprises an exhaust pipe and a collection box, the exhaust pipe is arranged between a cabinet and an outer cylinder; the air inlet end of the exhaust pipe is communicated with an outer barrel of the washing machine; the air outlet end part of the exhaust pipe is arranged outside the cabinet body; the position, close to the air outlet end, of the exhaust pipe is lower than the position, close to the air inlet end, of the exhaust pipe. The collecting box is communicated with the exhaust pipe. The drying device has the effect of reducing the possibility that the interior of the cabinet body is moistened by damp and hot gas exhausted by the drying device.

The invention discloses a wafer IPA drying method for improving wafer edge particle aggregation, and belongs to the technical field of semiconductor manufacturing. The method comprises the following steps: after a wafer is cleaned, lifting the wafer from pure water to the 4 / 5 position of the wafer to be separated from the water surface by using a bottom supporting table, and then clamping the 2 / 3 edge position of the wafer by using a top clamp to continuously lift until the wafer is completely separated from the water surface; in the lifting process, the surface of the wafer is purged through mixed gas of N2 and IPA, and the completely-dried wafer is obtained. According to the invention, the wafer is dried by replacing a wafer lifting mode and cooperating with an IPA drying mode, so that the wafer can be completely dried, and the watermark problem caused by local dryness due to contact between the wafer and the supporting table in the medium replacement process can be avoided. The method is wide in practicability, simple in technological process, short in treatment time, low in cost and good in application prospect.

The invention relates to a preparation method of peppermint essence, which solves the problems of quick volatilization and poor durability of the traditional peppermint essence by optimizing the combination of essence components and a slow-release carrier by adopting a multi-layer microcapsule slow-release technology and a nanocapsule technology. According to the method, essence components such as menthol, menthone and leaf isovalerate are mixed with at least two layers of microcapsules, the outer layer microcapsules slowly release fragrance, the inner layer microcapsules quickly release fragrance, and it is ensured that the fragrance is kept for a long time in the using process. Meanwhile, the essence is uniformly dispersed in different carrier systems through ultrasonic-assisted emulsification by adopting a nanocapsule technology, so that the stability and dispersity of the essence are improved. In addition, the temperature-responsive and pH-responsive polymer materials are introduced, so that the release rate of the essence can be adjusted according to the external environment, and the adaptability of the essence is further enhanced.

This invention discloses a compound traditional Chinese medicine powder inhaler for respiratory tract infections and its preparation method, relating to the field of pharmaceutical formulation technology. The compound traditional Chinese medicine powder inhaler for respiratory tract infections is composed of polysaccharide composite gel microspheres, forsythia, scutellaria, honeysuckle, and isatis root. The polysaccharide composite gel microspheres are composed of seaweed sulfated polysaccharide, lentinan, calcium chloride, and curcumin. Seaweed sulfated polysaccharide, lentinan, curcumin, and calcium chloride cross-link to form a three-dimensional network spherical structure, improving the particle morphology and flowability of the micropowder. Furthermore, due to its good hygroscopic and moisturizing properties, it competitively reduces the moisture absorption of the micropowder, preventing aggregation and further improving flowability. In addition, the gel microspheres have excellent adhesion, adhering to the infection site after entering the respiratory tract, reducing expulsion losses due to respiration, maintaining an effective drug concentration at the infection site, and improving therapeutic efficacy.

This utility model relates to the field of quartz sand processing technology, specifically to a quartz sand drying system. It includes a frame and a horizontal drum rotatably mounted on the frame. Several support rollers for supporting the horizontal drum are installed on the frame. A biomass hot air device is also included. Fixed covers are fitted onto the outer sides of both ends of the horizontal drum. A heat-conducting cylinder is coaxially installed inside the horizontal drum, with both ends mounted on the frame and extending through the two fixed covers. A drying space is formed between the heat-conducting cylinder and the horizontal drum. The air outlet of the biomass hot air device is connected to one end of the heat-conducting cylinder, and the other end of the heat-conducting cylinder is connected to an exhaust gas treatment device. A feed inlet is connected to the fixed cover near the air outlet of the biomass hot air device, and an outlet is provided on the fixed cover at the other end. Both the feed inlet and outlet are connected to the drying space, which is connected to the exhaust gas treatment device via an exhaust pipe. This quartz sand drying system has low drying costs and does not contaminate the quartz sand.

The utility model relates to the technical field of drawing frames, and discloses an anti-blocking device for a drawing frame, the anti-blocking device comprises a U-shaped frame arranged at an inlet of the drawing frame, two rotating shafts are rotatably mounted in the U-shaped frame, the two rotating shafts are both fixedly sleeved with hair collecting roller sleeves, felt is detachably mounted and fixed on the two hair collecting roller sleeves, and the hair collecting roller sleeves are fixedly sleeved with the felt. A driving assembly is arranged on the front side of the U-shaped frame and used for controlling the two rotating shafts to rotate relatively, and two dust suction hoods with the bottoms being open are fixedly installed in the U-shaped frame. Compared with the prior art, the device has the following advantages and effects that the adhesion effect of the felt is matched with the negative pressure dust collection effect, a dual protection mechanism is formed, short fibers, fluff and other impurities on the surfaces of fiber strips can be comprehensively and efficiently cleaned away, the blocking phenomenon caused by accumulation of the impurities at an inlet of the drawing frame is avoided, the impurities cannot enter the drawing frame easily, and the service life of the drawing frame is prolonged. Therefore, smoothness of a fiber rod conveying channel at the inlet of the drawing frame is guaranteed, and stable and efficient operation of the drawing frame is guaranteed.

The utility model discloses a kind of N, N-diisopropyl ethylamine neutralization distillation device, it is related to neutralization distillation technical field, the N, N-diisopropyl ethylamine neutralization distillation device, including neutralization reaction kettle, stirring mechanism and lye distribution mechanism are equipped in neutralization reaction kettle, lye distribution mechanism is installed in the upper portion of neutralization reaction kettle, it is arranged horizontally annularly, the lower end of lye distribution mechanism is fixedly connected with the upper end of stirring mechanism, and lye distribution mechanism is rotated simultaneously when driving stirring mechanism rotation, it is even sprayed into reaction liquid phase area in circumferential direction multiple points to alkali liquor, the efficient dispersion and mixing of alkali liquor are realized.The utility model is rotated by the synergistic effect of multiple point injection lye distribution mechanism and micro rectifier structure, realize the spatial uniform distribution and rapid mixing of alkali liquor in reaction system, effectively avoid local over-alkali, improve the uniformity, stability and product yield of neutralization reaction.

This utility model discloses a surface degreasing device for gear production, relating to the technical field of gear production equipment. The utility model includes a cleaning tank, and further includes: an degreasing section disposed on the cleaning tank for holding the gears to be degreased; a rotating section disposed inside the cleaning tank for driving the degreasing section to rotate; and a stirring section located inside the cleaning tank for stirring the mixture of cleaning fluid and oil. After the cleaning fluid is poured into the cleaning tank, the gears to be degreased are poured into the degreasing section, and then the rotating section drives the degreasing section to rotate, ensuring uniform contact between the gears and the cleaning fluid. This utility model, by incorporating a rotating section, solves the problem in existing degreasing devices where it is inconvenient to rotate the gears in the cleaning fluid, resulting in uneven contact between the surface of each gear and the degreasing agent, thus affecting the overall cleanliness of the gears.

The utility model relates to the technical field of glue drying, in particular to a waste gas treatment device for glue drying. A waste gas treatment device for glue drying comprises a rack; the conveying device is arranged on the rack and is used for conveying paper; the furnace body shell is positioned above the conveying device and is arranged on the rack; the heating assembly comprises a first heating pipe and a second heating pipe, and the first heating pipe and the second heating pipe are parallel to each other up and down and are arranged in the furnace body shell; and the feeding hole is formed in one side of the furnace body shell. The waste gas treatment device has the beneficial effects that through the reasonable layout of the filtering assembly and the adsorption assembly, the high efficiency of waste gas treatment is ensured, the waste gas is prevented from being gathered in the furnace body, and when the filtering assembly needs to be replaced or cleaned, the maintenance can be completed only by pulling out the furnace cover without disassembling the whole device, so that the downtime is greatly reduced, and the production efficiency is improved. And the production continuity is improved.

The invention relates to the technical field of photovoltaic materials, in particular to an anti-migration black pigment, a high-reflection black packaging adhesive film and a photovoltaic module. The anti-migration black pigment has a structural general formula as shown in a formula I, wherein R1 is at least one of R1, R2, R3, R4, R5, R6 and R7. The anti-migration black pigment disclosed by the invention is blue-phase black, and has excellent damp-heat resistance and migration resistance; when being used for a black packaging adhesive film, the black packaging adhesive film can be well matched with the color of a battery piece without adding other auxiliary pigments for color matching; and in a high-temperature and high-humidity environment, the color difference change value (delta E) of the color of the adhesive film is remarkably reduced, and the requirement that delta E is less than or equal to 2 in long-term use of the photovoltaic adhesive film is completely met.

The application discloses a composite flocculant based on aluminum chloride and a preparation method thereof, and belongs to the technical field of flocculant preparation, and is used for solving the technical problem that the stability and flocculation performance of the flocculant need to be further improved in the prior art; the branched polymer containing polycarboxyl groups is prepared by the reaction of tris(2-aminoethyl)amine and pyromellitic dianhydride, and the taurine groups are introduced to obtain the sulfobranched polycarboxyl polymer; the titanium phosphorus silicon aminopropyl composite is synthesized by using the sol-gel method, and the inorganic-organic network combination is realized; the polyimidazolium-hydroxy ether is obtained by the reaction of imidazole, epichlorohydrin and bisphenol A diglycidyl ether; the composite flocculant is formed by the reaction of the three under the acidic condition, the composite flocculant combines the polycarboxyl groups, the sulfonic acid groups, the imidazolium groups and the inorganic-organic skeleton, has high charge density, good adsorption and bridging performance, can rapidly form stable flocs, and can effectively remove the suspended particles and organic pollutants in water.

This invention relates to the field of carbon nanotube technology, specifically disclosing a high-viscosity carbon nanotube conductive paste and its preparation method. The raw materials for this high-viscosity carbon nanotube conductive paste include ultra-long single-walled carbon nanotubes, short-cut multi-walled carbon nanotubes, conductive carbon black, carboxyl-terminated hyperbranched polyester-polyethylene glycol block copolymer, polyacrylic acid, fluorinated silane coupling agent, γ-butyrolactone, and N-methylpyrrolidone. The high-viscosity carbon nanotube conductive paste provided by this invention achieves uniform dispersion, low volume resistivity, excellent anti-settling properties, and good coating processability of the carbon nanotube conductive paste under high solids content through the synergistic effect of the carboxyl-terminated hyperbranched polyester-polyethylene glycol block copolymer, the fluorinated silane coupling agent, and polyacrylic acid, combined with multi-stage grinding and high-pressure homogenization processes.

The utility model relates to energy storage equipment technical field especially relates to a submerged liquid cooling energy storage cabinet convenient to maintain, including energy storage cabinet, the energy storage cabinet is arrayed and is equipped with a plurality of baffle, forms independent cavity between adjacent baffle, and the positioning frame is placed in the independent cavity, and the guide sliding block is symmetrically installed positioning frame both sides, and the guide sliding block is slid in the guide sliding groove that is opened in independent cavity both sides, and the electric core is arrayed and placed on the positioning frame, and the handle is installed on the electric core top. The utility model discloses through separating the energy storage cabinet into a plurality of independent chambers, and each independent chamber places the positioning frame, and places a plurality of electric cores on the positioning frame, and each electric core is relatively independent, so when needing to detect and maintain the electric core, only need to pull the handle on the corresponding electric core, can take out the corresponding electric core, does not need to dismantle integrally, and the maintenance is more convenient, and each independent chamber is independently filled with coolant, thereby avoiding the problem that the temperature of the center electric core is too high due to the whole accumulation of the electric core.

The utility model belongs to the technical field of energy-saving heating, and particularly relates to an energy-saving heating mechanism of silicone rubber processing equipment, which comprises a bottom plate and a heating box, a plurality of exhaust holes are formed in the top of the heating box, a centrifugal exhaust fan is fixedly connected to the front side of the top of the bottom plate, and a fan speed regulator is fixedly connected to the front side of the top of the bottom plate. And the top of the centrifugal exhaust fan communicates with a gas collecting pipe, the right side of the centrifugal exhaust fan communicates with a gas conveying pipe, heat dissipation fences are fixedly connected to the front side and the rear side of the inner wall of the heating box correspondingly, and adjusting air doors are fixedly connected to the sides, away from each other, of the two heat dissipation fences correspondingly. According to the utility model, hot air in the heating box is pumped out through the centrifugal exhaust fan, after the hot air is transferred through the pipeline, heat is dissipated through the heat dissipation holes and the heat exchange fins, the air guiding-out amount is controlled by the adjusting air door, the hot air is prevented from being gathered by the guide plate, the heating efficiency is improved, and the device has the energy-saving effect and also guarantees the processing quality.

The application discloses a zinc battery negative electrode material, a preparation method thereof and a zinc ion battery. The zinc battery negative electrode material is a composite of a carbon base material and zinc nanoparticles; the carbon base material is a porous carbon material with through nano or sub-micron channels, the zinc nanoparticles are distributed in the channels of the carbon base material, the surface of the zinc nanoparticles is wrapped by a carbon network, and the carbon network anchors the zinc nanoparticles in the channels of the carbon base material. A pulse mode is adopted to alternately introduce zinc sources and carbon sources, and interval purging is performed after each introduction; in view of the unique physical and chemical characteristics of zinc, a synergistic process of "functional group guidance-pulse deposition-immediate anchoring" is designed, so that the deposition of zinc nanoparticles and the growth of the carbon network are alternately performed. The zinc battery negative electrode material can not only inhibit the growth of zinc particles in a long-term electrochemical cycle process, improve the utilization rate of zinc, but also reduce the direct contact area of zinc and electrolyte, and is helpful to inhibit the occurrence of side reactions such as hydrogen evolution.

This invention discloses a carbon-coated nano-zero-valent iron composite material, its preparation method, and its application. The preparation method includes the following steps: mixing lignin and tetrahydrofuran to obtain liquid B; adding an aqueous solution of nano-ferric oxide to liquid B to obtain liquid A; adding ZnCl2 to liquid A and stirring evenly at room temperature; heating at 80-90°C for 8-9 hours to obtain a dried composite; grinding the composite into powder; heating to 300°C and maintaining the temperature for 2-3 hours under nitrogen or inert gas conditions; cooling to room temperature to obtain a composite precursor; grinding the composite precursor into powder; calcining at 800-900°C for 2-3 hours under nitrogen or inert gas conditions to obtain the carbon-coated nano-zero-valent iron composite material. The carbon-coated nano-zero-valent iron composite material of this invention has a core-shell structure, inhibiting the aggregation of nano-zero-valent iron, and achieving antioxidant properties while ensuring the activity of nano-zero-valent iron, exhibiting efficient removal of 2,4-dichlorophenol.

The application provides a heat exchange device, a single-phase module, a power device, an energy storage converter and an energy storage station, and relates to the technical field of energy storage converters. The heat exchange device comprises a heat exchange element, a liquid outlet end and a liquid inlet end. The heat exchange element has a first included angle with a horizontal plane, and the heat exchange element comprises a heat exchange flow channel configured to circulate a heat exchange medium. The liquid inlet end is arranged on the heat exchange element and is in communication with the heat exchange flow channel. The liquid outlet end is arranged on the heat exchange element and is located above the liquid inlet end. The liquid outlet end is also in communication with the heat exchange flow channel. The application can improve the heat exchange effect of the heat exchange device, thereby improving the temperature uniformity of the single-phase module.

This invention discloses a method for preparing 5-methoxy-1-[4-(trifluoromethyl)phenyl]-1-pentanone using a microchannel reactor, comprising: weighing 2-methyltetrahydrofuran according to a predetermined ratio in a pre-dried reaction vessel; adding magnesium (1.1 to 1.3 equivalents) and an initiator to the 2-methyltetrahydrofuran; adding 1-chloro-4-methoxybutane (1.0 equivalents) dropwise; maintaining the reaction temperature at 30-60°C; and keeping the temperature constant for two hours after the addition is complete to obtain a 4-methoxybutylmagnesium chloride solution, which is raw material A solution; and dissolving 4-trifluoromethylbenzonitrile (0.9-0.95 equivalents) in 2-methyltetrahydrofuran. This invention can improve reaction yield, reduce side reactions, enhance mass transfer efficiency, solve the production safety hazards caused by violent exothermic reactions, overcome the safety risks of traditional batch reactor technology, use microreactors for safe and efficient post-processing, and use continuous distillation to purify the product, finally obtaining 5-methoxy-1-[4-(trifluoromethyl)phenyl]-1-pentanone in a yield of over 92%.

The application belongs to the technical field of catalytic dye degradation, and particularly relates to a Co@C / FHP catalyst and a preparation method and application thereof. The preparation method comprises the following steps: dissolving Co(NO3)2.6H2O and terephthalic acid in DMF, adding fruit hair of Platanus (FHP), carrying out hydrothermal reaction, washing and drying, and then calcining under N2 atmosphere to obtain the Co@C / FHP catalyst. In the application, FHP is used as a carrier, Co-MOF is in-situ grown on the surface of the carrier, FHP is carbonized into a porous carbon carrier after pyrolysis, and Co-MOF is converted into metal cobalt nanoparticles wrapped by a carbon layer. The catalyst has the advantages of high dispersion degree of active sites, good stability and good conductivity, and can efficiently activate persulfate to degrade organic pollutants.

The invention discloses a preparation method of an Al-RE intermediate alloy based on an alloy opposite doping method, which comprises the following steps: firstly, industrial pure aluminum Al and mother alloy Al-90RE are taken as raw materials, the raw materials are dried according to a mass ratio meeting the requirement of Al-(10-50) RE, then, the raw materials are melted by adopting a two-stage variable-temperature melting method to obtain an Al-RE melt, then, the Al-(10-50) RE melt is refined, and meanwhile, the Al-RE intermediate alloy is prepared by adopting an alloy opposite doping method. The steel ingot mold is preheated, and finally, the refined Al-RE melt is poured into the preheated steel ingot mold to be cooled, so that an Al-RE intermediate alloy ingot based on the alloy opposite doping method is obtained; rE is one of La, Ce or La + Ce alloy. The obtained Al-RE intermediate alloy is compact in metallographic structure and less in inclusion; in addition, the yield is greater than 90.0%.

The utility model discloses a dangerous waste incineration system, including rotary kiln, two combustion chamber, its characterized in that, the side of two combustion chamber bottom is provided with the hopper plate that the inner surface is smooth and the inclination is 50 65 DEG, and another side of two combustion chamber bottom is connected with rotary kiln, and the smoke outlet of rotary kiln kiln tail is towards hopper plate, and the position of hopper plate upper end and two combustion chamber side wall interface is provided with combustion port, and combustion port is used to along the inclined direction of hopper plate to two combustion chamber bottom air supply combustion, and the bottom of two combustion chamber is provided with decoking burner still, and decoking burner is used to inject flame between the smoke outlet of rotary kiln kiln tail and hopper plate.

The invention provides a biodegradable graphene / PBAT composite packaging bag and a preparation method thereof. The method comprises the following steps: S1, heating and calcining rice husks in an air furnace to obtain rice husk ash; s2, mixing the rice hull ash with potassium hydroxide, and reacting at 700-900 DEG C; s3, adding a product obtained in the step S2 into lime milk for full reaction, precipitating calcium carbonate among graphene, then filtering, cleaning to be neutral, and drying to obtain a calcium carbonate / graphene composite material; s4, blending the calcium carbonate / graphene composite material with a PBAT master batch, performing melt extrusion by using a double-screw extruder, performing air cooling, and performing pelletizing for standby application to obtain a calcium carbonate / graphene / PBAT composite master batch; and S5, preparing the full-biodegradable graphene-based PBAT film from the calcium carbonate / graphene / PBAT composite master batch by adopting a film blowing method, and then preparing the packaging bag.

This invention belongs to the field of vibrating screen technology and discloses a linear vibrating screen, including a support, a buffer assembly, a limiting shell, a feed plate, a screen, a first discharge port, a second discharge port, and a vibrating assembly. Buffer assemblies are fixedly connected to the four corners of the top of the support, and the limiting shell is fixedly connected to the inner side of each buffer assembly. During screening, the vibrating assembly drives the first transmission assembly to move, which in turn drives the second transmission assembly to move. This causes the second transmission belt to be driven by the third transmission wheel. The second transmission belt, through a connecting block, drives a telescopic assembly to move. When the telescopic assembly moves, it drives the upper pressure assembly to move along the bottom surface of the screen. Due to the engagement of the gears and toothed plates, the pressure assembly rotates as a whole, causing the plastic block to intermittently squeeze the bottom of the screen, thus preventing material from accumulating at the top of the screen and increasing screening efficiency.

The application discloses a steel profile fireproof glass frame system, which comprises a door frame and a door leaf, a fireproof glass is arranged in the middle of the door leaf, fireproof expansion strips are arranged on the outer walls of the door frame and the door leaf, a breaking strip is connected to one side of the fireproof expansion strip, a first metal sheet and a second metal sheet are connected to one side of the breaking strip, and elastic fireproof fabric is connected to the edges of the first metal sheet and the second metal sheet. The application has the characteristics that it can respond to fires occurring at different positions. When a fire occurs outside, the sealing structure in the device can improve the sealing performance of the large gap between the door frame and the door hinge through the natural expansion of the internal gas and the fireproof expansion strip. When a fire occurs inside, the sealing structure can quickly leak when it senses heat, so that the counterweight quickly falls down, the door leaf is forcibly opened through the extrusion of the counterweight, ventilation is achieved, and a large amount of smoke is prevented from gathering in the room.

The present disclosure relates to the technical field of semiconductor technology, and discloses a semiconductor structure and a forming method thereof. The semiconductor structure comprises an active pillar, a gate oxide layer and a gate layer. The active pillar comprises a source region, a channel region and a drain region distributed in sequence along the extension direction of the active pillar. The channel region comprises a first region and a second region distributed adjacently. The first region is distributed adjacently with the source region and / or the drain region. The first region and the source region or the drain region are different in doping type. The gate oxide layer covers the surface of the source region, the channel region and the drain region. The gate layer covers the surface of the gate oxide layer. The orthographic projection of the gate layer on the active pillar coincides with the channel region. The semiconductor structure can reduce the probability of breakdown between the source region and the drain region, and improve the reliability of the device.