31results about How to "Will not spontaneously combust" patented technology

Disclosed herein are a polymer composition for air purification and a filter manufactured using the polymer composition. The polymer composition comprises a peroxide or superoxide and silicone (i.e. an organopolysiloxane). Since the silicone has a high gas permeability, the polymer composition comprising the peroxide or superoxide as an air purifier rapidly absorbs harmful gases and is highly stable even when in contact with water, allowing the polymer composition to show superior characteristics. Particularly, since the polymer composition comprises a stabilizer, it is highly stable and thus is not spontaneously ignited even at very high temperatures. Accordingly, the polymer composition can be manufactured into filters having various shapes by common rubber processing.

The invention relates to a method for pre-vulcanizing a hydrogenation catalyst outside a hydrogenation reactor and activating the hydrogenation catalyst in the hydrogenation reactor. The method comprises the following steps of: (1) pre-vulcanizing the catalyst outside the hydrogenation reactor; (2) passivating the catalyst; and (3) reactivating the catalyst. A vulcanization method for the hydrogenation catalyst provided by the invention can guarantee high vulcanization rate of the catalyst; the passivated catalyst does not have abnormal odor and does not release hydrogen sulfide gas when being in contact with air or vapor; and the catalyst does not spontaneously combust and is not required to be protected by inert gas. Storage, transportation and filling methods and the like of the catalyst are simple and convenient. The catalyst can reach an activated state in a few hours during reactivation of an atmosphere containing a vulcanizing agent and hydrogen, is short in processing time, convenient to operate and has high catalytic performance.

The invention discloses a waterproof coal powder and a preparation method thereof. The waterproof coal powder comprises the following components in parts by weight: 5-30 parts of calcium salt or Ca(OH)2, 1-10 parts of stearic acid or stearic acid Salt and 60-94 parts of coal powder; the preparation method first weighs the component formula of the said parts by weight, puts it into a drum reactor and raises the temperature to 110-140°C, and keeps heating for 20-60 minutes to obtain the waterproof coal powder . The method of the invention can change the coal powder from a hydrophilic substance to a hydrophobic substance, greatly reduce the hydrophilic property of the coal powder, and can prevent the volatilization of the volatile matter in the coal powder, thereby effectively avoiding the coal powder in storage. The problem of spontaneous combustion prolongs the storage time, increases the safety during storage and transportation, and has a good application prospect.

The safe procymidone smoke agent consists of procymidone, combustion assistant and fuel in the ratio of 12-20 to 22-25 to 35-40. The combustion assistant is one or several selected from ammonium nitrate, potassium nitrate, sodium nitrate, potassium perchlorate and potassium permanganate; and the fuel is one or several selected from corn cob, cow, dung powder, straw and bagasse. It is bagged and thus is safe without spontaneous combustion; and it has simple production process and equipment and less environmental pollution.

The invention provides a utilization system for the tail gas of a calcium carbide furnace. By the system, without purification treatment, the tail gas of the calcium carbide furnace is directly conveyed into a burner and then burnt, investment to the purification treatment of the tail gas of the calcium carbide furnace is eliminated, and hidden danger in the purification treatment of the tail gas of the calcium carbide furnace, which contains high-concentration carbon oxide (CO), is eliminated. The utilization system for the tail gas of the calcium carbide furnace comprises a heat exchanger, a pressurizing conveying fan and a lime rotary kiln, wherein the heat exchanger cools the tail gas of the calcium carbide furnace; the lime rotary kiln is provided with the burner; and a calcium carbide furnace tail gas discharge pipe, the heat exchanger, the pressurizing conveying fan and the burner are sequentially connected in series. The invention also provides a utilization method for the tail gas of the calcium carbide furnace. The method comprises the following steps of: reducing the temperature of the tail gas of the calcium carbide furnace to 200 to 400 DEG C; pressurizing the tail gas of the calcium carbide furnace to be over 3,000 Pa by using the pressurizing conveying fan; conveying the tail gas of the calcium carbide furnace into the burner of the lime rotary kiln; and burning the tail gas of the calcium carbide furnace.

The invention discloses a bamboo bundle dry heat treatment method. A pressure tank filled with a bamboo bundle is placed into hot oil, the impermeability of the heat treatment process is guaranteed, and spontaneous combustion cannot happen even when the heat treatment temperature reaches 220 DEG C. A hot oil pool is adopted, it can be guaranteed that in the heat treatment process, the temperature is constantly kept consistent, and the uniformity of heat treatment of the bamboo bundle is improved. The water content of the bamboo bundle not treated is controlled below 10%, acid gas generated through hydrolysis of the bamboo in the heat treatment process can be effectively reduced, corrosivity to equipment is reduced, and the service life of the equipment can be prolonged.

The invention relates to a flow water-cooling sealing structure of a well type carburizing furnace bottomless muffle tank. The flow water-cooling sealing structure of the well type carburizing furnace bottomless muffle tank comprises a carburizing furnace body. The inverted bottomless muffle tank is arranged in the carburizing furnace body. An annular structure sealing layer is arranged between the muffle tank and a furnace platform, namely an inner cavity of the part, penetrating through the furnace platform, of the muffle tank. The gap between the muffle tank and the furnace platform is sealed by the structure sealing layer. A water cooling sealing groove is formed below the structure sealing layer, and cooling water is input into the water cooling sealing groove to cool the tail end of the muffle tank or cool the tail end of the muffle tank and the lower end of the structure sealing layer. The water-cooling sealing structure has the high safety, will not cause spontaneous combustion, avoids or even completely eradicates the spontaneous combustion phenomenon caused by traditional oil liquid sealing, and greatly improves safety. The gap is sealed by the structure sealing layer, the excellent sealing effect is achieved, the phenomenon that losing of the temperature and furnace pressure of the muffle tank or water flowing are caused through the gap is effectively prevented, the reliability is greatly improved, and inferior-quality products or waste products are prevented from being formed in the furnace body.

The biomass hydrogenation liquefaction catalyst described in the present invention is an iron-based desulfurizer waste agent, and the active component of the iron-based desulfurizer waste agent is FeS 2 , the FeS 2 The content is 10wt%-70wt% based on the content of iron element. FeS 2 Biomass hydrogenation as an active component, not only has a good hydrogenation effect on biomass, the fraction of ≤350 °C reaches 89%, and FeS 2 The property is stable and will not spontaneously ignite during the grinding process, which improves the safety performance of the catalyst; on the other hand, the hydrogenation catalyst uses waste desulfurization agent as raw material, turning waste into treasure, and avoiding environmental pollution caused by waste desulfurization agent , greatly reducing the cost of biomass hydrogenation.

Disclosed is a hot and humid high-pressure wood heat treatment method. Wood is treated through a pressure tank, and the pressure tank is put in hot oil, so that the airtight effect of a heat treatment process is guaranteed, and spontaneous ignition cannot occur even though the heat treatment temperature reaches 220 DEG C; a hot oil pool is adopted so that the effect that the temperature is kept consistent all the time in the heat treatment process can be guaranteed, and accordingly the uniformity of wood heat treatment is improved; the moisture content of the wood before treatment is adjusted to saturated water content and always kept in the state of the saturated water content and the wood is always kept in the environment of saturated steam before drying treatment in the step (5); under the action of water molecules, the heat treatment time can be effectively shortened, and the energy consumption of heat treatment is reduced; nutrient substances in the wood are more thoroughly degraded; and the color and luster of the treated wood are more uniform, the wood can be prevented from being cracked in the heat treatment process, and the quality of the heat-treated wood is effectively improved.

The invention discloses a garlic fresh-keeping smoke agent, which is characterized in that the garlic fresh-keeping smoke agent comprises the following raw materials in parts by weight: 5%-20% of fresh-keeping active medicine, 5%-10% of smoke agent, and 10% of cooling agent ‑20%, weighting agent 5%‑10%, combustion agent 15%‑25%, combustion aid 2%‑5% and inert carrier. The invention discloses a garlic fresh-keeping smoke agent, which forms a highly dispersed system of fresh-keeping active drugs, improves the conversion rate of active ingredients in the fresh-keeping smoke agent into smoke, and increases the diffusion range of the drug smoke, thereby further achieving prevention and treatment of garlic sprout ash. In addition, the invention has a high smoke rate and no open flame, which improves the safety performance and environmental protection performance of the garlic fresh-keeping smoke agent.

The invention discloses an environment-friendly firework propellant which is characterized by being composed of the following components in parts by weight: 10-65 parts of rare earth, 15-35 parts of potassium perchlorate, 10-20 parts of aluminum magnesium alloy, 5-20 parts of combustible agent, 2-5 parts of plant gum and 3-10 parts of resin, wherein the combustible agent is selected from any one or combined by any two from hemp xyloid stem carbon powder and Chinese fir carbon powder at any proportion, and the plant gum is a rice flour adhesive. The environment-friendly firework propellant is free of chlorate, small in horizontal launching force, low in moisture absorption property, low in impact and friction sensitivity, small in dosage of charges for preparing fireworks, slight in smoke, long in shelf life and displaying time, free of residues after displaying, good in physical and chemical stability, simple in processing technology and suitable for various firework propellants.

The composite liquid fuel consists of glycol, ethanol, propanol, propyl ether, ethyl acetate, stearic acid, petroleum ether and inorganic combustion improver KNO3 or NaNO3. The fuel of the present invention is used mainly for self-supporting hot pot and in field cooking and may be also used in household. The fuel of the present invention is non-toxic, smell-less, pollution-less, safe, high in heat value and stable in combustion and produces no carbon deposit to blacken kitchen ware.