49 results about "Perchlorate salt" patented technology

The invention discloses a copper-titanium etching solution and a preparation method thereof, and belongs to the technical field of etching solution preparation. The etching solution is prepared from the following components in percentage by mass: 4.5-7.5% of potassium peroxymonosulfate composite salt, 1.2-2.8% of sodium percarbonate, 1.2-2.8% of benzotriazole-2, 3, 4-triazole-2, 3, 4-triazole-2, 3, 4-triazole-2, 3, 4-triazole-2, 3- The cleaning agent is prepared from the following components in percentage by weight: 1.2%-1.8% of 1, 3-dicarboxylic acid, 0.3%-0.8% of 5-aminotetrazole, 0.15%-0.45% of ethylenediamine tetraacetic acid tetrasodium salt, 0.15%-0.45% of hydroxyethylidene diphosphonic acid, 0.15%-0.45% of cocamidopropyl betaine, 0.3%-0.8% of benzotriazole, 0.15%-0.45% of 2-mercaptobenzothiazole, 0.02%-0.08% of poly-N-isopropylacrylamide, 0.7%-1.8% of potassium perchlorate and the balance of ultrapure water. According to the etching solution, the copper-titanium etching rate can be accurately regulated and controlled, back cutting and titanium residues are effectively inhibited, the stability of the etching solution is improved, and the service life of the etching solution is prolonged.

The invention discloses an efficient flame-retardant fire extinguishing agent for rapidly extinguishing a lithium battery fire and a preparation formula, and relates to the technical field of fire fighting. The fire extinguishing agent is composed of a liquid-phase component and a solid-phase component, wherein the liquid-phase component comprises ethylene glycol, triethanolamine, fluoroalkyl betaine, sodium dodecyl benzene sulfonate, a phosphate flame retardant, an orange peel extracting solution and purified water; the solid-phase component comprises dodecyl sulfate, ammonium phosphate, potassium perchlorate, sodium carboxymethyl cellulose, polyacrylamide, benzotriazole and the like. The method comprises the following steps: drying and activating solid-phase components after graded crushing, and stirring in a nitrogen atmosphere; carrying out segmented treatment on liquid-phase components, and carrying out ultrasonic emulsification on an orange peel extracting solution; and after solid-liquid mixing, carrying out vacuum defoaming, high-speed shearing dispersion and homogenization treatment. According to the lithium battery fire extinguishing agent, component particle sizes with different dissolution rates are matched through graded crushing, nanoscale dispersion is achieved through ultrasonic emulsification, the bubble residual rate is reduced through vacuum defoaming, and the problems that a traditional lithium battery fire extinguishing agent is low in insulativity, low in cooling efficiency and insufficient in flame retardant efficiency are solved.

The invention discloses a preparation method of a graphene dispersion liquid applied to fiber modification, and belongs to the technical field of application of new graphene materials. In order to solve the problems that graphene is poor in dispersity and easy to agglomerate in the aramid mother liquor, the purpose of preparing the high-performance graphene reinforced aramid fiber composite material is achieved. The preparation method comprises the following steps: dispersing crystalline flake graphite into concentrated sulfuric acid, adding potassium perchlorate into a mixed solution, and reacting to obtain a mixed solution of potassium perchlorate / crystalline flake graphite / concentrated sulfuric acid; adding deionized water into the mixed solution obtained in the step 3 to obtain a mixed solution of deionized water, potassium perchlorate, crystalline flake graphite and concentrated sulfuric acid; a graphene oxide aqueous solution is obtained in a centrifugal cleaning mode and dispersed in N, N-dimethylacetamide, and graphene oxide dispersion liquid is obtained. And the stability of mechanical properties of the fibers can be ensured to be stable when the aramid fibers are produced on a large scale due to the uniformity of liquid dispersion stability.

The invention relates to the technical field of firework and firecracker production, in particular to a firework and firecracker liquid mixing safety production process which comprises the following steps: adding modified bentonite into starch adhesive cement, and uniformly stirring to obtain adhesive cement; pouring metal powder, potassium perchlorate and sulfur into the glue slurry in batches, and uniformly stirring to form mixed slurry; a bobbin with the sealed bottom is filled with the mixed slurry, the bobbin is subjected to vibration treatment, and then a paper sheet is stuffed into the top of the bobbin and sealed through glue; and the glue-sealed bobbin is fed into a drying room to be dried, and a finished product is obtained. The starch and the water are adopted to prepare the flow-state liquid slurry, then the metal powder, the potassium perchlorate and the sulfur are mixed with the liquid slurry, low-temperature drying and dehydration are performed after filling, explosion caused by friction and influence of environment temperature change are avoided during the period, and therefore the danger of a traditional production process is completely eradicated; meanwhile, no smoke is generated, and the problem of environmental pollution which is difficult to solve thoroughly for a long time in the production industry is solved.

Provided are a method for producing a titanium-based electrolytic raw material with relatively low Al and O contents while suppressing or eliminating the use of calcium fluoride and potassium perchlorate, and a method for producing pure metallic titanium or Ti—Al alloy. The method for producing a titanium-based raw material for electro-refining according to the present invention is a method for producing a titanium-based raw material for electro-refining used for molten salt electro-refining to obtain pure metallic titanium or Ti—Al alloy, the method comprising: a reaction step of bringing a titanium compound, at least a part of the titanium compound containing titanium oxide, into contact with, in melt, pure metal and / or alloy of aluminum as a reducing agent, and a melting accelerator, and causing reactions including deoxidation of a part of O in the titanium oxide to obtain a titanium alloy product comprising Al and O, wherein the melting accelerator comprises calcium oxide (CaO), and a content of calcium oxide in the melting accelerator is 80% by mass or higher.

The invention relates to the technical field of gas purification, and discloses gas purification equipment for potassium perchlorate preparation, the gas purification equipment comprises a gas inlet shell, the right side of the gas inlet shell is connected with a separation shell, the inner wall of the right side of the gas inlet shell is connected with an air bellow in a penetrating manner, the right side of the air bellow is connected with a separation pipe, and a screen is arranged in the separation shell; the supercharging assembly is used for increasing the flow speed of the waste gas during purification; the wall scraping assembly is used for promoting falling of waste residues in the separation pipe; the vibration assembly is used for preventing waste residues from accumulating on the surface of the screen. Through the arrangement of the pressurizing assembly, waste gas with the low flow speed is accumulated in the space between the gas inlet shell and the top of the sliding plate, after the waste gas is accumulated to a certain amount, the waste gas is pushed by the sliding plate to enter the follow-up purification procedure, the flow speed of the waste gas is increased, and therefore the solid particle separation efficiency is improved.

A thermal destruction reservoir system and a method of using the same to thermally destroy certain chemical and / or biological materials. The reservoir relies upon the use of a sheet comprising potassium perchlorate and iron dispersed in a polymeric binder.

The invention discloses a potassium perchlorate / zinc-magnesium alloy composite energetic material for mechanical detonation, which comprises the following components in percentage by weight: 70% of potassium perchlorate and 30% of zinc-magnesium alloy powder, the mass fraction of magnesium in the zinc-magnesium alloy powder is 50-80%, and the zinc-magnesium alloy powder is prepared by adding Zn powder into Mg powder through a centrifugal atomization method. According to the method, zinc is added into magnesium to prepare the zinc-magnesium alloy, so that an oxidation shell layer on the surface of metal powder is broken through, diffusion of magnesium is promoted, the reaction activity and energy output of the magnesium-based composite energetic material are remarkably improved, and energy release of the magnesium-based composite energetic material is more concentrated. The impact sensitivity and the friction sensitivity of the formula are high, and the excellent detonation sensitivity can be shown under the high-speed impact condition.

The invention relates to an energetic material based on a urea-potassium perchlorate eutectic system and a preparation method of the energetic material, and belongs to the technical field of safe and environment-friendly energetic materials. The energetic material based on the urea-potassium perchlorate eutectic system is prepared from the following components in parts by weight: 18 to 35 parts of high-molecular fluorine polymer with the particle size of 50 to 400 microns; 15-40 parts of active metal powder with a particle size of 10-75 [mu] m; 10-30 parts of urea with a particle size of 20-100 [mu] m; 12-35 parts of potassium perchlorate with a particle size of 10-120 [mu] m; 0.5 to 3 parts of a silane coupling agent; 0.5 to 5 parts of a binder; 5 to 10 parts of nano silicon dioxide; 0.5-3 parts of a stabilizer; the urea and the potassium perchlorate are used for constructing a urea-potassium perchlorate eutectic system. According to the energetic material, through co-crystallization treatment of urea and potassium perchlorate, the synergistic effect of an oxidizing agent and a gas generating agent is optimized, and then the problems that a traditional energetic material for emission is large in pollution and poor in safety are solved.

The invention provides a mixing reactor for preparing potassium perchlorate, and relates to the technical field of chemical equipment, the mixing reactor comprises a tank body assembly, the top of the tank body assembly is provided with a top cover assembly, the center axis position of the top of the top cover assembly is vertically provided with a stirring assembly, and the stirring assembly comprises a stirring main shaft, a driving motor and a quick release flange embedded with the top cover assembly; the top cover comprises a top cover body and a quick-release flange, the quick-release flange is of a double-layer structure, the upper layer and the top cover body are positioned through a bearing, the lower layer and the stirring spindle are positioned in a sleeved mode, and the blade assembly is installed in the middle and at the bottom end of the stirring spindle and sleeved with the surface of the stirring spindle and comprises an installation hoop connected with the stirring spindle in a positioned mode. Stirring blades are symmetrically mounted on the two sides of the mounting hoop, homogenizing holes are uniformly formed in the surfaces of the stirring blades, the homogenizing holes are polygonal holes, burrs are removed from the edges of the stress surfaces of the homogenizing holes, impact grooves are formed in the surfaces of the stirring blades at equal intervals, and the cross section of each impact groove is of a structure with the deep middle and the two gradually shallower sides.

A gas generant formulation for a side impact airbag includes a primary fuel, a primary oxidant, a secondary fuel, and a secondary oxidant. The secondary fuel includes at least melamine nitrate in an amount ranging from about 1.00 wt% to about 10.00 wt%. The secondary oxidant includes at least potassium perchlorate in an amount ranging from about 1.00 wt% to about 10.00 wt%. The formulation provides a combustion rate of at least 50 mm / s at 40 MPa and a combustion rate slope equal to or less than 0.40.

This invention relates to the field of carbon dioxide fracturing technology, specifically to a special powder for carbon dioxide activators and its large-scale preparation process. The special powder uses potassium perchlorate, salicylic acid, and ammonium oxalate as main raw materials, compounded with trace functional additives. The formula is scientifically controlled, possessing both high exothermic properties and inherent safety. The preparation process includes: pre-treating the raw materials followed by multi-gradient drying, graded ball milling and sieving, pre-mixing, homogenization and mixing, and secondary drying. The special powder prepared by this invention has a component uniformity deviation of ≤1%, a shelf life of up to 24 months at room temperature with sealing, 100% ignition reliability, and is compatible with various carbon dioxide fracturing devices, exhibiting significant safety, environmental, and economic advantages in mining, municipal engineering, and high-gas mines.

The invention relates to the technical field of potassium perchlorate wastewater treatment, and discloses a wastewater treatment device for potassium perchlorate preparation, which comprises a pool body for treating wastewater, a plurality of aeration frames mounted at the bottom of the pool body, aeration pipelines mounted in the aeration frames, and a membrane treatment unit mounted at the top of the aeration frames, the membrane treatment unit comprises a membrane frame and a membrane group which is arranged in the membrane frame and consists of a plurality of membranes; a steel shaft body is installed in the aeration frame, a plurality of first spiral blades and second spiral blades are arranged on the steel shaft body, and the first spiral blades and the second spiral blades are connected with the steel shaft body through detachable sleeves. The first spiral blade and the second spiral blade rotate through bubbles generated by aeration, and the first spiral blade and the second spiral blade are arranged in a staggered mode and are designed to be different in diameter, so that the bubbles can be more effectively cut and stirred in the rotating process of the first spiral blade and the second spiral blade.

This invention provides a potassium perchlorate temperature-controlled stirrer, relating to the field of chemical engineering technology. It includes a housing, with a fixed plate fixedly connected to the inner wall of the housing. A motor is fixedly connected to the outer wall of the top of the housing, and a drive rod is fixedly connected to the drive end of the motor. The outer wall of the drive rod is rotatably connected to the inner wall of the housing. This invention employs multiple sets of bevel gears and stirring blades, allowing a single motor to simultaneously drive the stirring blades and stirring rod to rotate in opposite directions. This enables the two parts of the device to stir the solution in reverse, thereby accelerating the stirring rate. Furthermore, the stirring rod is hollow and equipped with an air jet structure, allowing for air jetting into the solution during stirring, further accelerating the reaction rate. Additionally, the stirring blades are adjustable, allowing for changes in their lateral area to increase the stirring range. This provides better stirring results for different stirring conditions, enhancing its practicality.

Provided are a method for producing a titanium-based electrolytic raw material with relatively low Al and O contents while suppressing or eliminating the use of calcium fluoride and potassium perchlorate, and a method for producing pure metallic titanium or Ti-Al alloy. The method for producing a titanium-based raw material for electro-refining according to the present invention is a method for producing a titanium-based raw material for electro-refining used for molten salt electro-refining to obtain pure metallic titanium or Ti-Al alloy, the method comprising: a reaction step of bringing a titanium compound, at least a part of the titanium compound containing titanium oxide, into contact with, in melt, pure metal and / or alloy of aluminum as a reducing agent, and a melting accelerator, and causing reactions including deoxidation of a part of O in the titanium oxide to obtain a titanium alloy product comprising Al and O, wherein the melting accelerator comprises calcium oxide (CaO), and a content of calcium oxide in the melting accelerator is 80% by mass or higher.

The utility model relates to the potassium perchlorate precipitation field especially relates to a needle type potassium perchlorate precipitation filtering device. Including the precipitation box, first cooling precipitation mesh plate and second cooling precipitation mesh plate, the precipitation box main part is square box structure, the inside of precipitation box is vertically arranged with a plurality of first cooling precipitation mesh plate and second cooling precipitation mesh plate, first cooling precipitation mesh plate and second cooling precipitation mesh plate level from one side first insertion port and second insertion port insert, first cooling precipitation mesh plate and second cooling precipitation mesh plate staggered arrangement, the top middle part of precipitation box is provided with liquid inlet. Through the refrigeration of refrigerating machine to the precipitation box, makes inside keep a temperature that can fast precipitate, the structure of first cooling precipitation mesh plate and second cooling precipitation mesh plate can make solution can quickly spread, thereby make the precipitation effect better, first cooling precipitation mesh plate and second cooling precipitation mesh plate can be quickly replaced after the precipitation is complete.

The utility model discloses a quicksand type potassium perchlorate production device which comprises a centrifugal machine, a centrifugal head tank, a material mixing device, a material screening device and a soaking tank, the material mixing device comprises a charging barrel, a stirring mechanism, a sealing cover plate mechanism and a discharging port, the stirring mechanism is connected with the charging barrel, the sealing cover plate mechanism is installed on a feeding port of the charging barrel in a sealing mode, and the material screening device is installed on the discharging port of the charging barrel. The discharge port is formed in the bottom of the charging barrel; the stirring mechanism is used for mixing a plurality of materials in the charging barrel; the material screening device comprises a material screening groove, a discharging bin, a filter screen and a vibration motor, the material screening groove is formed in the bottom of the material barrel, the discharging port is communicated with the material screening groove, the discharging bin is installed at an opening in the lower portion of the material screening groove, the filter screen is installed in the material screening groove, the discharging port is higher than the filter screen, and the vibration motor is installed on the material screening groove; the potassium perchlorate production device aims at solving the problem that in the prior art, when a potassium perchlorate production device is used for producing potassium perchlorate, potassium perchlorate is caked.

The utility model relates to anti-caking stirring equipment in the drying process of potassium perchlorate, and belongs to the technical field of chemical equipment, the anti-caking stirring equipment can fully stir the potassium perchlorate and prevent the potassium perchlorate from caking in the drying process to a certain extent, and the comprehensive practicability is good. The mounting box is detachably mounted at the bottom of the stirring tank; the three supporting discs are fixedly welded to the bottom of the mounting box; the driving motor is detachably mounted in the mounting box, and the output end of the driving motor extends into the stirring tank through an output hole formed in the stirring tank and is fixedly welded with a stirring shaft; the stirring cover is slidably connected to the end, away from the mounting box, of the stirring tank; the plurality of stirring blades are fixedly welded on the stirring shaft, the stirring blades are uniformly arranged in three layers, the included angles between each layer of stirring blades and the horizontal plane are respectively 20 degrees, 40 degrees and 60 degrees, and a pneumatic vibrator is fixedly mounted at one end, far away from the stirring shaft, of each stirring blade.

The utility model relates to wastewater recovery technical field, the utility model provides a system of recycling potassium perchlorate, sodium chloride in wastewater, the system includes MVR evaporation crystallization device, MVR centrifugal device, cooling crystallization device, cooling centrifugal device, anti -dissolution device, anti -dissolution centrifugal device, frozen crystallization device, frozen centrifugal device. The utility model utilizes the different features of the concentration and solubility of potassium perchlorate, sodium chloride in wastewater, first evaporates and concentrates under high temperature condition and precipitates sodium chloride, then precipitates potassium perchlorate by cooling, and the precipitated potassium perchlorate is purified by anti -dissolution and frozen crystallization, and the mother liquor is recycled in the process. Through the above technical scheme, potassium perchlorate and sodium chloride are effectively separated and recovered, the comprehensive utilization of wastewater is realized, and the technical problem of low product quality in the prior art is solved.

The utility model discloses potassium perchlorate smashing and screening integrated equipment, and relates to the technical field of potassium perchlorate production equipment, the potassium perchlorate smashing and screening integrated equipment comprises a smashing mechanism and a screening mechanism, the bottom of the smashing mechanism and the top of the screening mechanism are fixedly installed, in the potassium perchlorate smashing and screening integrated equipment, a negative pressure pump conducts negative pressure operation on the interior of a machine body through a negative pressure pipe; the inside of the machine body is in a certain negative pressure environment, external air is difficult to enter the machine body, meanwhile, in the crushing process, a ventilator pumps dust-containing air in the machine body to dust removal equipment through a pipeline, and through the mode that a negative pressure pump and the ventilator are combined, the diffusion range of dust can be controlled, and the safety of the equipment is improved; in the crushing process, the pump body conveys low-temperature cooling liquid in the circulating cooling box into the spiral cooling pipe, the cooling liquid spirally flows upwards through the spiral cooling pipe, heat generated in the crushing process is taken away in time, the situation that the temperature is too high due to heat accumulation is avoided, and the possibility of accidents such as explosion caused by high temperature is reduced.

This invention provides a boron-based composite energetic material with sodium molybdate assembled with an oxidant and its preparation method. The material includes a boron matrix, an energetic oxidant assembled on the boron matrix, and sodium molybdate dispersed within the energetic oxidant. The boron matrix is ​​boron powder, mono-modified boron powder, or binary modified boron powder. The energetic oxidant is ammonium perchlorate, ammonium nitrate, or potassium perchlorate. The morphology of the boron-based composite energetic material is rough-surfaced spherical particles. The ignition delay time of the boron-based composite energetic material with sodium molybdate assembled with an oxidant prepared by spray drying is 37-30 ms, which is half that of boron powder or surface-modified boron powder; the oxidation peak temperature of this composite energetic material is 560-533℃, which is more than 100℃ lower than that of boron powder or surface-modified boron powder.

NASA's mandate is a human mission to Mars in the 2030s and sustained exploration of Mars requires in-situ resource utilization (ISRU). Exploiting the Martian water cycle (alongside perchlorate salts that depress the freezing point of water to <213K) and the available 95 vol. % atmospheric CO2, we detail an ultra-low temperature (255K) CO2—H2O electrolyzer to produce methane fuel and life-supporting oxygen on Mars. Methane production is thermodynamically favored across a range of operational pressures and temperatures and our electrolyzer polarization model concurred with reported experimental performance. A 10-cell, 100 cm2 electrode-area-per-cell electrolyzer produced 0.406 LW−1day−1 of CH4 and 2.08 LW−1day−1 of O2 at 2V / cell (operating voltage) vs. 2.202 L W−1day−1 of O2 produced by the Mars Oxygen in-situ Resource Utilization Experiment (MOXIE) from NASA's Mars 2020 mission (MOXIE produces no fuel). Material performance requirements are presented to show that this technology is an energy-efficient complement to MOXIE's high temperature approach.

Gas-generating compositions according to various embodiments comprise a fuel, an oxidizer, and at least two combustion modifiers. The oxidizer can be a metal nitrate, such as basic copper nitrate, and the fuel can be a nitrogen-containing organic compound, such as melamine nitrate. The at least two combustion modifiers are ammonium perchlorate and potassium perchlorate. The ammonium perchlorate and potassium perchlorate are present in a ratio of between 3:1 and 1:3. In some embodiments, the ratio is 1:1. Optionally, the gas-generating compositions can include additional components, such as processing lubricants, slagging agents, and additional fuels, oxidizers, and combustion modifiers.

The present invention discloses a method for resource recovery of potassium perchlorate from industrial wastewater, which includes: deeply removing perchlorate in the wastewater by using macroporous strongly basic anion exchange resin, enriching the perchlorate into the ion exchange resin, concentrating the perchlorate anion into the resin desorption solution by a resin regenerant, and precipitating potassium perchlorate to obtain crude potassium perchlorate crystals. The present invention obtains a large amount of crude potassium perchlorate crystals, and then purifies the crude potassium perchlorate crystals through an anti-solvent recrystallization process to obtain fine potassium perchlorate crystals with smaller particle size and higher purity. The particle size of the crude potassium perchlorate crystals of the present invention is greater than 100 microns, and the purity of potassium perchlorate reaches more than 90%; the particle size of the potassium perchlorate crystals after anti-solvent recrystallization is 8 - 45 microns, and the purity can reach more than 99.5%. In addition, the removal rate of perchlorate anion in the fireworks wastewater can reach more than 95%, the removal rate of sulfate radical reaches more than 99%, and the removal rate of COD reaches more than 60%.

A gas-generating agent composition containing guanidine nitrate, basic copper nitrate, and potassium perchlorate, the gas-generating agent composition having a potassium perchlorate content of 12 parts by weight or more when the total content of guanidine nitrate, basic copper nitrate, and potassium perchlorate is 100 parts by weight, and the gas-generating agent composition containing guanidine nitrate, basic copper nitrate, and potassium perchlorate. The gas-generating agent composition further contains an amorphous oxide.

The invention relates to the field of inorganic materials, in particular to spherical potassium perchlorate and a preparation method and application thereof. Modified nano graphite powder is evenly divided into two parts, and the parts are respectively added into a potassium chloride aqueous solution and a sodium perchlorate aqueous solution to obtain a suspension A and a suspension B. A surfactant and n-butanol are added into cyclohexane to obtain an oil phase, and the oil phase is evenly divided into two parts, and the suspension A and the suspension B are respectively added into the oil phase to obtain a microemulsion A and a microemulsion B. The microemulsion A and the microemulsion B are mixed and reacted, and then centrifuged. The product is collected, washed and dried. The potassium perchlorate prepared by the invention has high stability and low accident risk during production, storage, transportation and use.

The invention relates to the field of inorganic materials, in particular to potassium perchlorate and application in safety airbags, and the potassium perchlorate comprises a potassium perchlorate core body and a protective layer coating the surface of the potassium perchlorate core body; the preparation method of the potassium perchlorate comprises the following steps: dispersing a potassium perchlorate core body in a solvent containing an organic ligand, enabling the organic ligand to be adsorbed on the surface of the potassium perchlorate to form an induction layer, then adding the induction layer into a growth solution containing metal ions, enabling a metal organic framework crystal to grow on the surface of the potassium perchlorate to form a protective layer, and finally obtaining the potassium perchlorate. The prepared potassium perchlorate has extremely low moisture absorption rate and extremely high friction safety, in addition, possibly, transition metal ions in a protective layer have catalytic activity, but the burning speed is increased, and the potassium perchlorate can be applied to safety airbags of automobiles.

The invention discloses a nitramine compound / potassium perchlorate / zinc-magnesium alloy high-energy insensitive explosive which comprises the following components in percentage by weight: 49-51% of nitramine compound, 26-34% of potassium perchlorate and 17-23% of zinc-magnesium alloy powder, the mass fraction of magnesium in the zinc-magnesium alloy powder is 50%, and the zinc-magnesium alloy powder is prepared by adding Zn powder into Mg powder through a centrifugal atomization method. The high-energy insensitive explosive disclosed by the invention is high in exothermic peak temperature and good in thermal safety; meanwhile, heat release is concentrated and large, and the characteristic of high energy release rate is achieved; the impact sensitivity and the friction sensitivity of the formula are low, and the mechanical safety is good.

The utility model belongs to the technical field of potassium perchlorate production, and provides a double-auger material conveying device in potassium perchlorate production, which comprises a trough, a first auger, a second auger, a driver, a transmission assembly, a coupling assembly and a controller. The trough is a cuboid trough body, two base angles in the length direction are arc-shaped, and the trough body is divided into two trough cavities by a middle partition plate; the first auger and the second auger are the same in size and shape, spiral twisting pieces and two or three axial straight stirring pieces are arranged on twisting shafts, the twisting shafts are arranged in the two groove cavities in an inverted mode, the twisting shafts are coaxial with the arc-shaped bottom corners of the material grooves respectively, and the two ends of the twisting shafts penetrate through the end plates of the material grooves respectively to be connected with the transmission assembly or the coupling assembly. According to the double-auger material conveying device, by changing the rotating speed and the rotating direction of the first auger and the second auger, the trough can rapidly receive a large number of materials intermittently output by a centrifugal machine, the buffering effect is achieved, the materials can be continuously and evenly output from a discharging port in the bottom of the trough, and the material retention phenomena such as wall hanging and arching do not exist.