37results about How to "Reduce the chance of being corroded" patented technology

The invention discloses a product waste heat ring-shaped partition-type recovery system and method for a pellet calcining rotary kiln, and belongs to the technical field of rotary kiln product waste heat recovery technology. The recovery system comprises a ring-shaped partition heat exchange mechanism and a blast tube heat exchange mechanism. Both a high temperature segment hood body and a middle temperature segment hood body are cylinders with openings at two ends, both internal diameters of high temperature segment hood body and the middle temperature segment hood body are greater than the external diameter of a cooling cylinder, the high temperature segment hood body sleeves on a high temperature segment, and the middle temperature segment hood body sleeves on a middle temperature segment. The blast tube heat exchange mechanism comprises a blast tube, the blast tube comprises a blast tube holding segment and a blast tube heating segment, the blast tube heating segment is disposed in the cooling cylinder, an outlet of the blast tube heating segment comes out of a feed inlet of the cooling cylinder, and the outlet of the blast tube heating segment communicates with an air inlet of a burner through a pipe. According to the product waste heat ring-shaped partition-type recovery system and method for the pellet calcining rotary kiln, the efficiency of waste heat utilization of a rotary kiln is raised, the consumption of cooling water is reduced, the probability that a cooling device is corroded is reduced, and the operation environment can be improved.

The invention provides a purpus privet seedling trimming device, and belongs to the field of plant trimming devices. The device comprises a supporting frame, an adjustment device, a rotary plate and atrimming knife, and the supporting frame is connected with the rotary plate through supporting legs; a sliding groove is formed in the rotary plate, the trimming knife is slidably installed in the sliding groove, a sliding block which is fixedly connected with the trimming knife is capable of sliding in the sliding groove, an upright column groove is formed in a poke rod of the adjustment device,an upright column on the trimming knife fixedly connected with the sliding block is capable of slidably moving in the upright column groove, arc-shaped baffle pieces are arranged on an outer circumferential surface of the rotary plate, and a baffle plate is arranged at the tail end of the poke rod. The device has the advantages that sounds are not generated in the operation of the device to achieve silent operation, the arc-shaped baffle pieces can not only prevent the sliding block from moving out of the sliding groove, but also can prevent juice from plants from entering into the interior of the rotary plate through the sliding groove, corrosion probability of the interior of the device is reduced, service life of the device is prolonged, manual and knot-free adjustment within a trimming area radius can be achieved by the baffle plate, and complexity degree of the device is reduced.

The invention discloses a high efficiency wet-type desulfurization method through ammonia recovery method for oxidation and concentration outside a tower, and a device thereof. The method comprises the following steps: (1) feeding flue gas into the top part of a concentrating tower after dust removal, cooling down and humidifying the flue gas, then feeding the flue gas into a first level venturi section of a desulfurization absorption system to contact atomized ammonia water so as to have the first level absorption reaction, performing the second level and the third level desulfurizations, and discharging the flue gas after the purification; (2) oxidizing the ammonium sulfite solution generated in a desulfurizing tower and then overflowing the ammonium sulfite solution into a mother liquor tank from the top part of an oxidation tank; and (3) pumping the ammonium sulfate solution in the mother liquor tank to the top part of the concentrating tower through a mother liquor pump to perform heat exchange with the high temperature flue gas after atomization so as to form a supersaturated solution containing 3 to 5 percent of crystal, wherein the supersaturated solution flows out of the bottom of the concentrating tower and is pumped into a hydraulic cyclone through a slurry pump to perform the first level solid-liquid separation, and then the clear solution automatically flows into the mother liquor tank; the crystal-liquid mixed solution flowing out of the bottom of the concentrating tower automatically flows into a centrifugal machine to perform the second level solid-liquid separation, and then the clear solution automatically flows into the mother liquor tank; and solid ammonia sulfate is fed into an automatic packaging machine to be packaged and put into storage. The method has simple processes, greatly reduces investment, and can reclaim agricultural level ammonia sulfate and industrial level ammonia sulfate.

The invention discloses a display module and a mobile terminal, and belongs to the field of mobile terminal installation. The display module comprises a display screen and a flexible circuit board; the display screen comprises a display layer, a first conductive layer located below the display layer and a shading layer located below the first conductive layer; a gap is formed between the display layer and the edge of the first conductive layer, so that the edge of the first conductive layer is shielded by the display layer; the flexible circuit board comprises a substrate layer, a second conductive layer located on the substrate layer and a cover film located on the second conductive layer. The first conductive layer and the second conductive layer are electrically connected through the third conductive layer. According to the invention, the edges of the first conductive layer and the display layer are arranged at intervals, the edge of the first golden finger is shielded by the display layer, so that the first golden finger is not exposed outside, the probability that the first golden finger is corroded is reduced, the probability that the display screen cannot work normally is further reduced to a certain extent, and the working stability of the display module is improved.

The invention relates to the field of white light LED luminescent materials, in particular to a full-spectrum borosilicate fluorescent glass and a preparation method thereof, comprising a matrix glass and a full-spectrum fluorescent powder, and the matrix glass is made of Na 2 O, ZnO, B 2 o 3 , SiO 2 and CaO components; the mass mole fraction of each component of the matrix glass is: Na 2 O: 10‑15%, ZnO: 20‑35%, B 2 o 3 : 20‑50%, SiO2: 0‑20%, CaO: 0‑20%; the full-spectrum phosphor is composed of the following components: a cyan phosphor with an emission peak at 480‑500nm under blue light excitation; Green fluorescent powder with an emission peak at 520-540nm, and a red fluorescent powder with an emission peak at 615-640nm under excitation by blue light. The molar percentages of the components of the full-spectrum fluorescent powder are: cyan phosphor: green phosphor: red Optical phosphor = 1~1.5: 1.3~1.6: 0.3~0.7.

The invention provides a high-efficiency purification device for flue gas in a coal-fired power plant, which is installed between the boiler and the chimney of the coal-fired power plant, and is used to purify the flue gas produced by the coal-fired power plant, including an economizer, an air preheater and an electrostatic precipitator It also includes denitration reactor, desulfurization tower, chemical scrubber and / or demister; boiler, economizer, denitration reactor, air preheater, electrostatic precipitator, desulfurization tower and chimney are connected in sequence, chemical scrubber And / or the demister is set between the desulfurization tower and the chimney; when the flue gas generated by the coal-fired power plant flows through the chemical scrubber, it mixes with the chemical reagents in the chemical scrubber and is washed. The invention also discloses a method for purifying flue gas of a coal-fired power plant. The design of the high-efficiency purification device for flue gas in coal-fired power plants is reasonable in design, and it performs special treatment for SOx, NOx, particulate matter, sulfuric acid rain and gypsum rain formed by acid droplets in the flue gas discharged from coal-fired power plants, and solves the problem of Corrosion problems in chimneys.

The invention provides a red luminous glass ceramic for white light LEDs and a preparation method thereof, belonging to the technical field of rare earth luminescent materials. The red luminescent glass-ceramic is composed of matrix glass and red fluorescent powder; the preparation method is to firstly prepare matrix glass by melting method, and grind it into glass powder, then mix the glass powder and red phosphor powder, and obtain a red color after sintering and annealing. Luminous glass ceramic. The red luminescent glass ceramic has a high color rendering index of Ra≥80, excellent optical performance and high reliability, and can be used for white LED devices with high color rendering index.

A dye-sensitized solar cell comprises at least a first photovoltaic conversion unit and a second photovoltaic conversion unit. The first photovoltaic conversion unit further comprises a first photo-anode and a first counter electrode, the second photovoltaic conversion unit further comprises a second photo-anode and a second counter electrode, the first photo-anode and the second counter electrode are in electric connection respectively through a first electrical lead arranged on the first photo-anode and a second electrical lead arranged on the second counter electrode to form a series circuit, the first electrical lead and the second electrical lead of the series circuit are vertically overlapped, and the transverse length of the overlapped position is smaller than the length of the longer one of the first electrical lead and the second electrical lead. In the industrialized production process, the dye-sensitized solar cell largely reduces the materials used by the electrical leads, lengthens a diffusion path of an electrolyte solution, reduces the possibility that metal gates are corroded, and prolongs the service life.