31results about How to "Meet the requirements of the conditions of use" patented technology

The crop straw medium density fiberboard using natural rubber, the raw materials include crop straw fiber, adhesive, waterproof and lubricant, flame retardant, and the adhesive is natural rubber, including vegetable glue and animal glue. Water repellants and lubricants are natural waxes, stearic acid or stearate salts. Flame retardants are non-toxic and harmless flame retardants. The proportion of various raw materials by weight is: crop straw fiber 75% to 93%, binder 1% to 8% (dry), waterproof and lubricant 0.5% to 8%, flame retardant 5.5% to 23.5% . Various raw materials are mixed, sizing, paving, pre-pressing, hot-pressing, and trimming to make finished products, and microwaves are used for auxiliary heating in the hot-pressing stage. The crop straw medium density fiberboard made of natural rubber of the present invention can be completely degraded under natural conditions after being discarded and damaged, and will not cause any irreversible damage to the environment, so that the production and use of crop straw medium density fiberboard can be realized. Complete sustainability and recyclability, with significant practical and historical significance.

The invention relates to a method for preparing cold rolled household electrical appliance sheet with bell-type furnace, which in detail relates to a household electrical appliance sheet with high yield ration and high percentage of elongation mainly by controlling steel chemical component and adjusting bell- type funance annealing process. The comprised chemical component and weight percentage are follows: C 0.03-0.15, Si<=0.034, Mn0.17-0.65, P<=0.025, S<=0.02, Als0.02-0.055, N<=0.006 and Nb<=0.03. The annealing process comprises: temperature 200- 400 Deg. C, time 1- 2 hours; 400- 600 Deg. C, 4- 5 hours; 600- 710 Deg. C, 4- 6 hours; thermal insulating at 710 Deg. C; 710- 670 Deg. C, 3- 4hours; thermal insulating at 670 Deg. C for 3- 5 hours; water injecting at 400- 300 Deg. C; tapping temperature is 100- 50 Deg. C. The performance of prepared cold rolled household electrical appliance sheet reaches: yield strength 304 Mpa; strength for extension 379 Mpa, elongation 30%, rigidity HRB 63, and increased income of over100 yuan / t.

The invention relates to a photocatalysis wastewater degradation reactor capacity expanding method capable of incidentally preventing lamp region from causing water burst, belonging to the technical field of wastewater treatment. Existing relevant technologies has the problem of the water burst of an electrodeless lamp installing cavity, namely, a quartz tube cavity, and also has the problems of microwave energy waste, slightly small single-tank wastewater treatment capacity, catalyst agent loss, difficulty in distinguishing degradation reaction endpoints, incapability of immediately finding catalytic agent agglomeration, corrosion of secondary ozone reverse channeling to a magnetron, and the like. Aiming at the series problems, the capacity expanding method mainly comprises the steps of: connecting a miniature diaphragm pump used for replenishing air at a normal state and with low power consumption and low flow to an air channel leading into the quartz tube cavity in a bypass manner; restraining a microwave irradiation airspace by using a metal cage so as to conveniently largely expand the capacity of a reactor; intercepting a catalytic agent by stages by using a multi-stage filter; sensing a degradation endpoint by using an ozone sensor, and automatically switching off a power supply at the degradation endpoint; self-detecting the agglomeration trend of the catalytic agent; separating a waveguide tube by using a wave-transparent airtight partitioning plate, and blocking a secondary ozone reverse channeling channel.

The invention discloses a water-saving reverse osmosis water purifier, comprising a flush valve, a large-flow throttle valve, a pretreatment filter core, a return pipe, a booster pump, a small-flow throttle valve and a reverse osmosis processor, wherein the inlet of the pretreatment filter core is communicated with a water source; the outlet of the pretreatment filter core is communicated with the inlet of the reverse osmosis processor; the booster pump is arranged inside a water inlet pipeline of the reverse osmosis processor; one end of the return pipe is communicated with a concentrated water outlet of the reverse osmosis processor; the other end of the return pipe is communicated with the water inlet pipeline of the booster pump; the large-flow throttle valve is arranged on the return pipe; the inlet of the flush valve is communicated with the concentrated water outlet of the reverse osmosis processor; the outlet is communicated with the water inlet pipeline of the booster pump; the inlet of the small-flow throttle valve is communicated with the water inlet pipeline of the reverse osmosis processor or a concentrated water discharge pipeline of the reverse osmosis processor or the return pipeline; and the outlet of the small-flow throttle valve is idle. The washing water generated when the water-saving reverse osmosis water purifier is washed can be completely recycled. Therefore, the rinse discharge water of a reverse osmosis processor can be reduced to zero.

The invention relates to a composite kiln mouth pouring material with high thermal shock resistance, which comprises the following components and parts by weight: 13-25 parts of magnesia-iron brick particles, 15-25 parts of magnesia-alumina brick particles, 10-15 parts of andalusite, 18-28 parts of cordierite, 10-20 parts of alumina powder, 3-5 parts of silica fume, 5-10 parts of light-burned magnesium oxide powder, and 4-8 parts of complex magnesium-aluminum cement. By adopting the above formula, the present invention has the advantages of good thermal shock resistance, good mechanical strength and chemical corrosion resistance, low porosity, long service life and the like.

The invention provides an integral reactor with a double-layer structure at the top, which comprises a reactor core arranged in a pressure vessel, a built-in steam generator, a main pump and a control rod drive mechanism. A pressure vessel upper cylinder and a ring-shaped equipment support platform form an integral structure, and an arc-shaped pressure vessel inner top cover is connected to the equipment support platform through a flange of the pressure vessel inner top cover and the equipment support platform; the control rod drive mechanism is arranged on the pressure vessel inner top cover, and the main pump is arranged on the equipment support platform; the reactor core and the built-in steam generator are arranged below the equipment support platform; and a pressure vessel outer top cover is arranged at the top end of the cylinder which is arranged at the upper part of the pressure vessel, and is connected with the pressure vessel upper cylinder through a flange of the pressure vessel outer top cover and the pressure vessel upper cylinder. The invention is a structural design solution to the integral reactor having higher safety and better construction property.

The invention relates to the technical field of building partition materials, in particular to a waterproof gypsum environmental-friendly building block. The waterproof gypsum environmental-friendly building block is produced through the steps of stirring beta semi-hydrated gypsum, a water reducing agent, an inorganic material and a composite water-proofing agent, adding water and performing casting, wherein the percentage by weight of the raw materials is that the weight of the inorganic material is 9-15% of that of the beta semi-hydrated gypsum, the weight of the water reducing agent is 0.4-0.7% of that of the beta semi-hydrated gypsum, the weight of the composite water-proofing agent is 0.7-1.2% of that of the beta semi-hydrated gypsum, and the weight of the water is 58-70% of that of the beta semi-hydrated gypsum. Compared with the prior art, the environmental-friendly building block disclosed by the invention is produced through the following steps of mixing and stirring the beta semi-hydrated gypsum, the inorganic material, the water reducing agent and the composite water-proofing agent, then adding the water, and performing casting and shaping so that the problems that the coagulation time is too long, productivity is difficult to form, the intensity is low, the cost is high, and efflorescence and mildewing occur, are solved.

The invention provides an acidic inorganic repairing agent and its preparation method and repairing method, comprising: silica sol, silicon dioxide, boron nitride, and glass glaze; wherein, the pH value of the silica sol is 2-5. The acidic inorganic repairing agent of the invention can avoid the problem of pyrolysis of organic resins, is suitable for use at high temperatures, and has a stable and long-lasting repairing effect on ceramics and their composite materials that are not resistant to alkali.