37results about How to "Avoid poisoning accidents" patented technology

The invention discloses a sodium abietate insecticide and a preparation method thereof. The sodium abietate insecticide is a water dispersible granule containing 15wt% of sodium abietate. The preparation method comprises the following steps of: A, weighting a soluble powder containing 20wt% of sodium abietate, and mechanically crushing into granules of 180-200meshes; B, evenly mixing the soluble powder containing 20wt% of sodium abietate, sugar-free sodium lignin sulfonate, sodium sulfate and a dispersant, and crushing the mixture by a jet mill at the pressure of 600kg; C, dropwise adding a liquid substance, evenly stirring, and prilling by a rotary granulator; and D, placing in a thermostat, and drying for 8-10 hours at 54 DEG C to obtain the water dispersible granule containing 15wt% of sodium abietate. The sodium abietate water dispersible granule has the advantages of a water dispersible granule. By combing the technical process disclosed by the invention, the sodium abietate insecticide and a preparation method thereof are worthy of popularization.

The invention discloses a fertilizer, in particular an iodine accumulation seaweed fertilizer and a manufacture method thereof. The iodine accumulation seaweed fertilizer has the special aspects that the iodine accumulation seaweed fertilizer is a solid preparation made of the material and auxiliary materials by weight parts as follows: iodine is 1 to 35 parts, benzoate is 110 to 160 parts, compound sodium nitrophenolate is 1 to 8 parts, alcohol is 300 to 800 parts, water is 60 to 120 parts, and alkali is 1 to 2 parts. The solid preparation is granula, which has the particle size range that the diameter ranges from 2 to 3mm. The iodine accumulation seaweed fertilizer effectively improves the root environments of planting crops, and restrains the proliferation rate and the survival rate ofnematodes, thereby restricting the quantity and the epidemic degree of the nematodes and promoting the well-developed root system of the planting crops. The iodine accumulation seaweed fertilizer notonly provides microelement nutrition to the nutrient deficiency of plants, but also has restraining and repellent effects on the root knot nematode, and is the ideal preparation for producing harmless agricultural products.

The invention provides a wellhead discharge device and an exhaust method of an SAGD production well and the SAGD production well. The SAGD production well comprises a sleeve and a liquid discharge pipe arranged in the sleeve. The wellhead discharge device comprises a first pipeline communicating with the liquid discharge pipe, a second pipeline and a first throttle device arranged on the second pipeline. The first end of the second pipeline communicates with the sleeve, and the second end of the second pipeline is connected to the first pipeline. The first throttle device comprises a one-way valve and a first valve which are arranged in a spaced mode. The conducting direction of the one-way valve is from the second end of the second pipeline to the first end of the second pipeline. By adoption of the technical scheme, the problems that an operator is prone to poisoning during exhaust operation of an SAGD production well exhaust device, and exhaust operation pollutes the environment are solved.

The invention discloses a hydrogen sulfide inhibitor for drilling fluid and a preparation method of the hydrogen sulfide inhibitor. The hydrogen sulfide inhibitor is ethanolamine doped cellulose / cyclodextrin microspheres, and the hydrogen sulfide inhibitor is specifically obtained by stirring and cross-linking reaction of cellulose and cyclodextrin under an alkaline condition at the temperature of30-50 DEG C. The preparation method disclosed by the invention is mild, the prepared hydrogen sulfide inhibitor can be used for strengthening the performance of the drilling fluid and guaranteeing the safety when the water-based drilling fluid is used for drilling a sulfur-containing stratum; the hydrogen sulfide inhibitor has the effects of constraining hydrogen sulfide and lubricating the drilling fluid, so that the accident that an operator is poisoned due to release of hydrogen sulfide when the drilling fluid carrying drilling cuttings returns to the ground due to the fact that the drilling fluid contains hydrogen sulfide is avoided.

The present invention proposes a kind of intelligent control pyrite mine underground working face SO 2 Concentration method, the method is by establishing a measuring station at the underground working face; the measuring station includes a sampling ore pile formed by stacking high-grade pyrite in the working face, and also includes a controller, SO 2 Concentration sensor, temperature sensor; The controller passes SO 2 The concentration sensor collects the station position SO 2 Concentration data, temperature data at the location of the station are collected by the temperature sensor, and the ventilation fan and the accident alarm at the working face are controlled according to the monitoring data. 2 concentration and temperature, it is safe for SO 2 concentration is controlled.

The invention discloses an explosion-protection rapid purging device for natural gas systems, which comprises a shell, a gas pipe and an gas-guide pipe both arranged outside the shell and respectively provided with a gas ball valve and a natural gas ball valve, a fire-extinguishing gas pipe connected with the other end of the gas ball valve, and a natural gas pipeline connected with the other end of the natural gas ball valve. The invention is characterized in that a partition is arranged inside the shell, and a gas-guide moving interface mechanism and a gas-guiding static interface mechanism together with linked ball valve control mechanisms thereof are arranged at two sides of the partition. The invention has the advantages of reasonable design, good effect, and strong function of automatic rapid purging; and is particularly incorporated in the PLC automatic control system together with the rapid cut-off valve, thereby realizing the rapid purging with capability of automatic safety control of natural gas.

The invention relates to a pipeline type suffocation-preventing emergency mask capable of releasing water and oxygen. The emergency mask comprises a mask body and hangers. The hangers are arranged on the two sides of the mask body which comprises a wrapping gauze layer, a filtering layer, an oxygen-supply moisturizing layer and a breathable soft pad layer, wherein the filtering layer, the oxygen-supply moisturizing layer and the breathable soft pad layer are sequentially arranged in the wrapping gauze layer from outside to inside. The filtering layer is used for filtering poisonous gas and smoke generated in a fire hazard, so that air is purified, and poisoning accidents are avoided; the oxygen-supply moisturizing layer can release water to keep the cotton pad layer wet, high-temperature dry air is cooled and humidified, and therefore intense stimulation on the respiratory tract of a human body is avoided; oxygen particles are decomposed by water to generate a large quantity of oxygen, so that oxygen in air sucked in by the human body is supplemented, deaths by suffocation due to oxygen deprivation in the fire hazard are avoided, and the first-aid effect in the fire hazard is achieved. Besides, the mask is light in structure, low in price and easy to wear and can be popularized in hospitals, schools, factories, office buildings and all families.

The invention discloses a method for detecting aniline pollutants in water bodies, and belongs to the technical field of chemical sensor detection materials. This method utilizes the color difference produced by the "selective" absorption of spiropyran UV-Vis spectrum in aniline aqueous solution to rapidly qualitatively and quantitatively detect aniline pollutants. The technical content includes: (1) Obtaining a color standard card related to the aniline concentration according to the color change of the spiropyranose test paper in the aniline water standard solution of serial concentrations. (2) According to the color of the spiropyranose test paper in the solution to be tested, compare the color standard card to quickly determine the concentration of aniline. The detection method has simple material preparation, convenient operation, and is not limited by large-scale testing equipment and professional technicians, and is especially suitable for rapid on-site detection of aniline pollutants in the environment.

A poisoning prevention control system against poisonous gas in a vehicle comprises a poisonous gas detection unit, a control unit, a first alarm unit and a second alarm unit. The poisonous gas detection unit is used for detecting the concentration of the poisonous gas in the vehicle. The control unit comprises a central processing module and a time control module. The central processing module receives the poisonous gas concentration and simultaneously sends first alarm control signals and first timing signals according to the poisonous gas concentration. The time control module sends first control conversion signals to the central processing module according to the first timing signals so that the central processing module can stop sending the first alarm control signals according to the first control conversion signals and send second alarm control signals. The first alarm unit receives the first alarm control signals and gives an alarm according to the first alarm control signals. The second alarm unit receives the second alarm control signals and gives an alarm according to the second alarm control signals. The invention further relates to a poisoning prevention control method against the poisonous gas in the vehicle.

The invention discloses a coke oven partial combustion chamber gas exchange and heating method. The method includes the steps that firstly, when an oven wall of an Nth coking chamber needs to be repaired, gas inflow of the Nth row, the (N+1)th row and the (N+2)th row of blast furnaces is shut off, and gas inflow of the (N-1)th row, the Nth row, the (N+1)th row and the (N+2)th row of coke ovens is started; secondly, the cover plate opening degree of air inlet doors of an Nth, an (N+1)th and an (N+2)th exchange opening and closing devices of a flue is increased, and the turning plate opening degree of an (N-1)th, the Nth, the (N+1)th, the (N+2)th and an (N+3)th exchange opening and closing devices of the flue is reduced; thirdly, after flame on the top of the furnaces is normal, a four-way small porous plate needing to be cooled and corresponding to a fire path is taken off and replaced with a blind plate, and the oven wall of the Nth coking chamber is repaired; fourthly, after the oven wall is repaired, the doors are heated, and after the temperature of the fire path reaches the kindling point, the blind plate is taken off and replaced with the original small porous plate; fifthly, gas inflow of the coke ovens in the first step is shut off, the cover plate opening degree of the air inlet doors of the exchange opening and closing devices and the turning plate opening degree of the exchange opening and closing devices in the second step are restored, and gas inflow of the blast furnaces in the first step is restored. The method has the advantages of being safe and convenient to use.