68results about How to "Complete chemical reaction" patented technology

The invention relates to a process for preparing novel expanded ammonium nitrate explosive, which comprises the following steps: water-phase dissolving and oil-phase melting; mixing two phases; expanding crystallization; realizing uninterrupted discharging through alternately converting vacuum cavities; mixing expanded explosive with a functional additive which is subjected to measurement after a product is dropped into a cool mixed spiral through a feeding bin; dropping a prepared semifinished product of the expanded explosive into a suspension conveyer through a spiral conveying device; and conveying the semifinished product to a filling package workshop by the suspension conveyer for explosive filling to obtain a finished product of the expanded ammonium nitrate explosive through package. The invention is the process for preparing the expanded ammonium nitrate explosive with safety and environmental protection, zero discharge of pollutant, small online explosive amount, high operating safety and high automatic control.

The invention relates to a technology for making acid by combined incineration of waste sulfuric acid and hydrogen sulfide, and a used incinerator. The technology comprises the following steps: (1) atomizing the waste sulfuric acid, with concentration of greater than or equal to 75%, as a by-product in an oil refinery to form acid mist by combining high pressure pump conveying mechanical atomization with compressed air auxiliary atomization, wherein the grain diameter is smaller than or equal to 80 microns; (2) completely mixing hydrogen sulfide gas, with concentration of 0 to 50%, as the by-product in the oil refinery with hot air in a cyclone air inlet to product mixed gas; and (3) spraying the acid mist into the incinerator by using a waste acid spray gun, meanwhile spraying the mixed gas of hydrogen sulfide gas and hot air into the incinerator by a hydrogen sulfide spray gun and carrying out incineration, pyrolysis and reduction reaction to generate SO2 burner gas, wherein the SO2 burner gas enters an acid making system after the heat is recycled through a heat recovery boiler. During the reaction, the grain diameter of the acid mist is smaller than or equal to 80 microns, and the acid mist is introduced into the incinerator at the same time, so that various reactions can be performed completely and heat loss is reduced furthest at the same time, and produced products meet the requirement of the subsequent acid making technology.

The invention discloses a method and a device for preparing a nickel iron roasted ore by utilizing a lateritic nickel ore. The method comprises the following steps: firstly, grinding the lateritic nickel ore into an ore powder, then carrying out high-temperature roasting of the obtained ore powder, during the high-temperature roasting process, allowing the ore powder to be in a pre-reduction system and carry out a high-temperature preheating reduction reaction, followed by allowing the high-temperature roasted ore to go into a rotary kiln for high-temperature calcination, thus obtaining a roasted ore containing nickel pig iron after completing high-temperature calcination, and then after dipping the roasted ore into water for cooling, separating to obtain the nickel iron roasted ore. The device comprises a hopper-type elevator, an air chute, a chute draught fan, a rotary feeder, a sluice valve, a rotary kiln, a water-cooling stirring tank, a burner, a hot wind mixing chamber, a high-temperature draught fan, a cyclone dust remover, a bag-type dust remover, a chain-type conveyor, a burner and a pre-reduction system. The preparation method and the device allow the heat transfer area of the ore powder to be large, enable each particle to be uniformly and fully subjected to a chemical reaction, have short reaction time, and have high utilization rate of the lateritic nickel ore.

The invention discloses a mixing device for grout in an inlet well at the ground and an application method thereof. The mixing device comprises a mandril, a protecting bush and a grout collector, wherein the mandril is arranged in the protecting bush, and two ends of the mandril move through the protecting bush; the bottom end of the mandril is fixed to the protecting bush, and the upper end of the mandril is connected to a drilling rod through a short tube; the upper end of the protecting bush is connected to the grout collector; rightward rotating blades and leftward rotating blades are correspondingly arranged on the mandril in a staggering manner; the rightward rotating blade and the leftward rotating blade are arranged from the middle positions of the corresponding previous blades. The mixing device has the beneficial effects that the three purposes of injection mixing, swirling and agitating mixing, and slitting mixing can be essentially achieved in theory; the grout of two types can be fully mixed and completely chemically reacted, and the grouting effect is obvious.

The invention discloses a treatment chemical for lead-zinc flotation tailing wastewater, wherein the chemical comprises, in percentage by weight, 80-90% of carbonate, 9-19% of phosphate and 0.5-1% of non-ionic polyacrylamide; and the treatment chemical is suitable for treating lead-zinc flotation tailing wastewater with suspended solids, highly-free calcium oxide, high pH, high-concentration heavy metal ions, and over-standard COD (chemical oxygen demand) and BOD (biochemical oxygen demand). The new chemical has the multi-functions of rapidly removing calcium, removing suspended matters and precipitates, i.e., heavy metal ions and the like, as well as is large in the particle size of precipitate particles and complete in precipitation. Moreover, operation is simple and cost is low by using the chemical.

The invention belongs to the zeolite field and discloses a method for preparing zeolite 4A by using kaolin as raw material. The method comprises the following steps: mixing kaolin and sodium hydroxide solution, placing the mixture in a reaction kettle to perform activation treatment and obtain the mixture containing active silica and active alumina, standing the obtained mixture for aging, crystallizing, filtering the crystallization product, washing and drying to obtain zeolite 4A. The method of the invention has the advantages that the process is simple, the energy consumption is low, the production cycle is short, the obtained product has high quality and low cost, etc.

The composition of fire-extinguishing agent is made of (wt%) 40-65% of oxidant, 10-20% of fuel, 20-40% of catalyst, 0-5% of additive and 3-7% of combustion speed regulator, in which the oxidant is ammonium nitrate, the fuel is a compound whose molecular formula is CnH2n-2On-1 (n=5-7), and the catalyst is one of nitrates or mixture of more than two kinds of them, and the combustion speed regulatoris chloride, inorganic acid salt and organic acid salt. Said invented fire extinguisher includes exhaust chamber, cooling chamber and charging chamber, said three portions are made into cylindrical form. Said exhaust chamber includes filtering screen and nozzle on the filtering screen, the cooling chamber includes includes at least 6 layers of sieve plates, on the plate the screen for holding cooling agent is laid, and the charging chamber also is equipped with a starter made of chemical initiating agent. Its combustion speed is high, it does not pollute environment, and is extensive in application.

The invention discloses a device and a method for producing a small hollow electroslag ingot, belongs to the technical field of hollow electroslag ingot melting, and solves the technical problems of incapacity of ensuring the concentricity of the hollow electroslag ingot, incapacity of ensuring a high filling ratio, complex structure, high production cost and inapplicability to a small hollow electroslag ingot in the prior art. According to the device disclosed by the invention, an inner crystallizer is fixed to a bottom water tank, and an outer crystallizer is of a movable structure. The method disclosed by the invention comprises the following steps: welding a re-melting electrode of the hollow electroslag ingot; melting a solid pre-melting slag; pouring the liquid slag into the crystallizers in the invention, and carrying out electrifying melting; and carrying out die release after the melting is concluded. The device disclosed by the invention has the advantages of being simple in structure, easy to produce, simple to operate during a melting process, and low in production cost.

The invention discloses a method for preparing barium hydroxide by using barium carbonate. The method comprises the following steps of firstly grinding ores containing barium carbonate into ore powder, carrying out high-temperature roasting on the ore powder in a suspension fluidized state to obtain roasted ore containing barium hydroxide, soaking the roasted ore in water to react and generate a barium hydroxide solution, carrying out solid-liquid separation on the barium hydroxide solution, cooling and crystallizing to obtain barium hydroxide products. The method for preparing the barium hydroxide by using the barium carbonate, disclosed by the invention, has the advantages that the heat transfer area of the ore powder is large, each ore particle can uniformly and totally finish a chemical reaction, the reaction time is short, and the utilization rate of barium carbonate is high.

The invention provides a blowing-type induction melting furnace which comprises a furnace body, an air brick, a mechanical stirring system, a blowing system and an induction system, wherein the furnace body and a refractory crucible of the induction system form a molten pool; the inner wall of the furnace body and the induction system are partitioned and sealed through a thermal insulation material; the air brick is arranged at the bottom part or the side wall of the furnace body, directly passes through the furnace body and is communicated with the induction system and the molten pool; the mechanical stirring system comprises a mixing propeller and a control box; the mixing propeller is inserted into the molten pool and controls the rotating speed when working through the control box; the blowing system comprises a gas source and a high-pressure carrier gas transmission pipeline, and is connected with the bottom part of the furnace body through the high-pressure carrier gas transmission pipeline; an air outlet of the pipeline is opposite to the air brick; the induction system comprises an induction coil, an electromagnetic induction body, the refractory crucible and the thermal insulation material; the induction coil is in tight contact with the thermal insulation material on the inner wall of the furnace body; the thermal insulation material is arranged between the induction coil and the electromagnetic induction body; and the refractory crucible is located on the innermost layer.

The invention discloses denitrification filler and a method for deep denitrification of municipal sewage. The denitrification filler is prepared from the following raw materials by weight percent: 0.5-1.5% of aluminum powder, 8-12% of aluminum hydroxide, 3-8% of sulfur powder, 15-25% of sodium thiosulfate, 1.5-3% of sodium silicate, 40-55% of calcium hydroxide, 1.5-3% of fine sawdust and the balance of water. The denitrification filler is insoluble in the water, can react for a long time, is not powdered or argillation, and is low in cost, rich in source of raw materials and simple in preparation method; the method for the deep denitrification of the municipal sewage combines a chemical method and a biological method, thus having the advantages of being rapid and thorough of the chemical reaction as well as the advantages of being low in cost and having environmental adaptability of the biological method; therefore, the method provided by the invention is an efficient deep denitrification method.

The invention relates to a process for preparing methanol from brown coal in gasification, which is characterized in that: the brown coal is crushed to brown coal powder of less 8; the brown coal powder is arranged into a totally-enclosed processing warehouse for being dried, and then is delivered into a direct-injection fluidization and gasification gas furnace in inside and outside cycle; the air and vapor are mixed to prepare the gasification agent with rich oxygen by adopting a transformation oxygen-enrichment adsorption process unit; the gasification agent is delivered into a furnace from the bottom of the direct-injection fluidization and gasification gas furnace in inside and outside cycle; and the clean water is sprayed into the furnace from the bottom. The fully mixed material in the furnace is implemented on high temperature and high pressure, so that which is cracked to generate the air with rich methanol, further, the high-purity methanol can be generated when the air with rich methanol is processed through separation, desulfurization, decarbonization and purification. The adaptability of low-quality feed coal can be expanded by taking the low-quality as raw material according to the process for preparing methanol, thereby the utilization rate of the desulfurization and gasification on the feed coal can be improved; the energy consumption can be lowered, the environmental quality can be improved; and the economical efficiency is stronger. The invention also provides special equipment so as to meet the needs of the process.

The invention discloses a production method for barium stearate. The production method comprises the following steps: 1) adding water into a reactor and starting stirring and heating; 2) with water as a reaction dispersion medium and under the conditions of stirring and heating, adding powdery barium hydroxide at normal pressure so as to form a barium hydroxide suspension, then adding subparticle stearic acid while stirring when temperature reaches 50 to 60 DEG C, stopping heating when temperature reaches 65 to 66 DEG C and carrying out a reaction for 20 to 30 min when temperature rises to 69 to 70 DEG C caused by reaction exotherm; and 3) subjecting a reaction product to filtering separation, drying and crushing so as to obtain a barium stearate product. The production method provided by the invention realizes a complete chemical reaction of stearic acid with barium hydroxide under the reaction condition that a catalyst is not added and has low requirements on equipment; process flow is simple; the reaction medium water can be cyclically used, so no waste water is discharged, causing no pollution to the environment; reaction temperature is low, and little energy is consumed; no catalyst is needed, and production cost is reduced.

The invention discloses an online rapid pickling device and method for a condenser in a power plant. The online rapid pickling device comprises a pickling liquid distribution device and a servo motor which are arranged outside a condenser water chamber, wherein an underwater positioning device for accurately positioning and a rapid filler for injecting pickling liquid are arranged in the condenser water chamber; the servo device is connected with the underwater positioning device; the pickling liquid distribution device is connected with the rapid filler; the servo device is used for transmitting a command to an underwater vertical positioning device in order to drive the rapid filler on a vertical coupler support to arrive at a specified area; a propeller on the support is used for driving the rapid filler to move forwards to be in hermetical butt joint with a condenser tube plate; the liquid distribution device is used for supplying pickling liquid to the rapid filler; the rapid filler is used for filling the pickling liquid into a plurality of rows of condenser heat exchange tubes in a covered area; after set cleaning and soaking time is reached, the rapid filler is separated from the condenser tube plate under the driving action of the propeller, and moves to a next area according to a set program for cleaning continually. By adopting the online rapid pickling device and method, the cleaning time is shortened greatly, the equipment running reliability is enhanced, and the cleaning cost of the condenser is lowered.

The invention relates to a non-pollution treatment device, which comprises a raw material pre-treatment system, a raw material hoister, an auxiliary material batching system, a reactor system and a belt conveyor. The device is characterized in that stirring claws of the raw material pre-treatment system have bar-shaped structures; two spiral pushing shafts are arranged at two ends of a feed port of the raw material pre-treatment system respectively, wherein one shaft rotates leftwards, while the other shaft rotates rightwards; the raw material pre-treatment system and the raw material hoister are connected; the raw material hoister feed raw materials into the reactor system by adopting spiral hoisting; the auxiliary material preparation system and the raw material hoister are connected to feed auxiliary materials into the reactor system; and a discharge port of the reactor system is connected with the belt conveyor. The whole device has a closed structure, has simple and convenient operation and high treatment efficiency on putrid wastes.

The invention discloses an online precision chemical descaling device and method thereof of an industrial tube nest type water cooler. A descaling agent distribution device and a servo control device are arranged outside a water chamber of the water cooler, an underwater positioning device and a descaling agent injection device are mounted in the water chamber of the water cooler, the underwater positioning device is connected with the servo control device through a waterproof cable, the descaling agent distribution device is connected with the descaling agent injection device through a guide tube, the servo control device transmits commands to the underwater positioning device, descaling agent injection nozzles on a driving support and orifices of cooler heat exchange tubes are docked, and the descaling agent distribution device supplies descaling agent to the descaling agent into the descaling agent injection nozzles. After set washing and soaking time is up, the descaling agent injection nozzles are separated from docking with the orifices of the cooler heat exchange tubes under drive of the servo control device and automatically move to inlets of the next group of cooler heat exchange tubes. On the premise of zero emission, reliability of operating of the equipment is improved, cleaning cost of the cooler is greatly reduced, and cleaning effect is greatly improved.

The invention relates to an isothermal self-compensating type liquid level adjusting water bath kettle which comprises a water bath kettle body, a first temperature controller for controlling the temperature of a water bath area of the water bath kettle, and a water supplementing tank, a first liquid level controller (1), a second liquid level controller (2) and a second temperature controller, wherein the water bath kettle body is arranged in the water supplementing tank, a liquid level water supplementing area (7) is arranged between the inner wall of the water supplementing tank and the outer wall of the water bath kettle body, the first liquid level controller (1) is arranged at a lower part of the water bath kettle body and is used for control water input when the liquid level of a water bath kettle water bath area (6) is too low, the second liquid level controller (2) is arranged at an upper part of the water supplementing tank and is used for control water input when the liquid level of the liquid level water supplementing area (7) is too low, and the second temperature controller is used for controlling the temperature of the liquid level water supplementing area (7) to keep consistent with the temperature of the water bath kettle water bath area (6). The isothermal self-compensating type liquid level adjusting water bath kettle can realize the function of unmanned water self-compensation (water at the same temperature).

The invention belongs to the technical field of reaction kettles, and particularly discloses a chemical reaction kettle with an automatic temperature changing function. The chemical reaction kettle comprises a base, an electric heating wire plate, a lithium battery, a kettle body, a control box, a control panel, a displayer, an indicator lamp, a timer, a buzzer, a cooling pipe, a fixing ring, a temperature sensor, a top cover, a fixing pipe, a slider, a connecting rod, a movable frame, a rack plate, a fixing plate, a half gear, a first motor, an arc-shaped groove, a second motor, a fixing block, a stirring shaft, a stirring plate and side holes. The chemical reaction kettle is reasonable in structure; the temperature in the kettle body is detected through the temperature sensor, the temperature in the kettle body is displayed on the displayer, the kettle body is heated through the electric heating wire plate, the temperature in the kettle body is raised, cold water is guided into the cooling pipe for cooling the interior of the kettle body, the heating time and cooling time are calculated through the timer, temperature changing is more accurate, the heating or cooling state is displayed through the indicator lamp, and workers are reminded through the buzzer.

The invention discloses a new process for semi-ecological sewage treatment, which comprises a sewage treatment tank, a sewage storage room is arranged at the lower part of the sewage treatment tank, a support layer is set above the sewage storage room, a filter material layer is provided above the support layer, and a filter material layer is arranged above the support layer. The material layer includes a filter layer and an organism ecological treatment layer. An aeration pipe is provided at the bottom of the sewage holding room. The bottom of the sewage holding room is also connected to a water inlet pipe. The other end of the water inlet pipe is connected to a sewage separator. The sewage separator includes a separation device and Circulating water treatment device. By combining physical purification and biological purification, the present invention avoids the problem of long purification time in the simple ecological treatment of sewage, and at the same time avoids the excessive pollution of sewage entering the ecological sewage treatment pool, which will cause the microorganisms to be in the sewage The environment is harsh, which leads to low sewage treatment efficiency, poor water quality after treatment, and the phenomenon that the water cannot be completely up to standard, which can ensure that the sewage can be completely purified.

The invention discloses a dye waste liquid treatment device including a machine body, an input cavity with an upward opening is formed in the upper portion of the interior of the machine body. A cylindrical rotary drum wall is arranged below the input cavity; a mixing cavity communicated with the input cavity is formed in the wall of the rotary drum, and a filtering device is arranged in the mixing cavity. According to the device, person entering into the device can be avoided so as to carry out the cleaning operation, such that the harm of the waste liquid precipitate on the human body can besubstantially reduced, and the overall treatment efficiency can be improved.

The invention discloses a water bath kettle with a clamping device. The water bath kettle comprises a tank body, a water channel and a control cabinet, wherein an air pump is arranged in the control cabinet and is connected with a gas piping, and the gas piping penetrates in from the top of the water channel and out from the bottom of the water channel; a storage plate horizontally arranged is arranged in the water channel, a plurality of clamping devices are arranged on the storage plate, each clamping device comprises a containing hole formed in the storage plate, a plurality of elastic elements are arranged on the containing hole, all the elastic elements are connected with clamping assemblies, and the adjacent clamping assemblies can be matched with each other and connected. Different shapes of containers in the water channel can be stabilized, an automatic water supply device is arranged, the tank body is heat-insulating and energy-saving, and the water bath kettle has the advantages of being short in heating time, uniform in water temperature, high in accuracy of experiment results, wide in application range, good in scale-preventive performance, high in safety performance and the like, and is good in usability and worthy of wide popularization.

The invention discloses a polyferric PAC (poly aluminium chloride) reaction tank. The polyferric PAC reaction tank comprises a reaction tank body, wherein one side of the outer surface of the reactiontank body is connected with a movable baffle plate through a hinge; one side of the movable baffle plate is connected with a handle; a water inlet tube, a working panel and a feeding tube are separately arranged at the top of the reaction tank body; a temperature knob and a display are separately arranged at the top of the working panel; a reaction chamber is arranged above the inner part of thereaction tank body; and the polyferric PAC reaction tank is further equipped with a partition plate, a solid chamber and the movable baffle plate. After chemical reaction is ended, solid impurities ina solution can be blocked by the partition plate to keep in the solid chamber when the solution passes through the partition plate, and liquid enters the liquid chamber through the partition plate; and after use is ended, a user can open the movable baffle plate through the handle and the hinge so as to intensively clean the solid impurities in the solid chamber, so that the user uses the reaction tank more conveniently.