53 results about "Thermal explosion" patented technology

The present invention relates to the technical field of remote monitoring of emulsion explosive filling, and specifically to a remote monitoring control system and method for explosive filling based on the industrial Internet of Things. The method comprises: obtaining emulsion explosive production data in the emulsion explosive production process, obtaining thermal explosion performance data of emulsion explosive; being used to compare and analyze the emulsion explosive production data based on the emulsion explosive production index to obtain the emulsion explosive production safety index; calculating the thermal explosion performance index based on the thermal explosion performance data, judging whether the emulsion explosive meets the filling conditions based on the thermal explosion performance index, and if so, generating a signal that the emulsion explosive meets the filling conditions, obtaining the emulsion explosive production safety index, and analyzing and processing the emulsion explosive production safety index to generate a production safety warning signal; being used to receive a signal that the emulsion explosive does not meet the filling conditions, and generating a filling warning signal. The present invention can improve the production efficiency of emulsion explosives and reduce the safety risks of emulsion explosive filling.

The invention discloses a self-reaction substance drying process safety assessment and classification method based on thermal analysis kinetics. The method comprises the following steps: performing a multi-heating-rate programmed heating test on a self-reaction substance under a closed condition by adopting DSC to obtain an exothermic initial temperature, a peak temperature and a specific exothermic quantity, constructing a thermal decomposition kinetic model based on the obtained data, and solving kinetic parameters such as apparent activation energy and pre-exponential factors; combining an energy conservation equation and a thermal explosion theory, predicting a self-accelerated decomposition temperature SADT under an adiabatic condition TD24 and a given filling and heat dissipation condition, determining a temperature safety threshold value of a drying process according to the SADT, and dividing a working condition safety interval; further introducing three dimensionless safety factors including a temperature safety margin, a time safety margin and a thermal explosion margin, constructing a comprehensive risk index, and carrying out risk grade division on the drying working condition. The method provided by the invention has the advantages of low sample consumption, simple test conditions and standardized calculation process, can quantitatively evaluate the safety drying temperature upper limit of different self-reaction substances and under different process conditions, and provides a reliable basis for drying process design and safety control of the self-reaction substances.

The utility model provides a lightning arrester disconnector shell, which comprises a protective shell and a disconnector body, the protective shell comprises a bottom shell and an upper cover, the bottom shell is internally provided with an inner cavity, the disconnector body is arranged in the inner cavity, the inner side wall of the inner cavity is provided with a plurality of drainage plates, the outer side surface of the bottom shell is provided with a plurality of pressure relief cavities, and the pressure relief cavities are communicated with the drainage plates. Exhaust holes are formed in the tops of the sides, away from the bottom shell, of the pressure relief cavities, pressure relief holes are formed in the bottoms of the sides, close to the bottom shell, of the pressure relief cavities, and the pressure relief cavities communicate with the inner cavity through the pressure relief holes. According to the disconnector, the protective shell is additionally arranged on the disconnector body, so that the protective shell has the function of protecting the disconnector body from thermal explosion, high-temperature splashed chippings are prevented from burning nearby constructors, the chippings generated during thermal explosion are prevented from being splashed out along the exhaust holes through the structure of the pressure relief cavity, and the protective effect is better.

Disclosed is a composition which is applied to products or elements generating heat or having possibility of ignition or explosion during driving, storage and / or maintenance processes. The composition is capable of effectively responding to the heat, ignition, and explosion. For example, the composition is applied to an article comprising a plurality of the products or elements. The composition is capable of responding to abnormal heat generation, explosion, and ignition occurring in any one element or product, and is capable of preventing or minimizing propagation of such heat generation, explosion, and ignition to other adjacent elements or products. The composition also exhibits excellent handleability and storage stability. The present specification may also provide a use of the composition.

The invention provides a horizontal rotary heating device for detecting the thermal burst pulverization rate of limestone. The horizontal rotary heating device comprises a fixed kiln cylinder device, an in-kiln rotary device, an outer kiln cylinder fixed circular sleeve and a device base, the device base comprises a bottom plate I and a side plate I, and a guide rail is arranged on the bottom plate I; the kiln cylinder fixing device is fixedly mounted on the side plate I, and the other end of the kiln cylinder fixing device is open; a movable tray and a movable trolley are mounted on the guide rail; the movable trolley is provided with a bottom plate II and a side plate II, the side plate II is provided with a sealing large bearing, and the other side plate II is provided with an external kiln fixed bearing; the in-kiln rotating device comprises a rotating cylinder, one end of the rotating cylinder is sealed through a circular plate, and a connecting shaft is installed on the circular plate. The circular plate is rotatably installed on the sealing large bearing, and the connecting shaft is rotatably installed on the external kiln fixing bearing. According to the invention, the bursting pulverization characteristics of the limestone with different characteristics can be tested in advance, so that the thermal bursting pulverization performance of the limestone can be accurately evaluated.

The invention discloses a line lightning arrester, and relates to the technical field of power system lightning protection, the line lightning arrester comprises a lightning arrester body, a hinge fixing base and an electric control separation device, the lightning arrester body comprises a first lightning protection unit and a second lightning protection unit which are connected in series, and the bottom end of the first lightning protection unit is hinged to the hinge fixing base; the electric control disconnecting device comprises a thermal explosion disconnector and a leakage current monitoring module, the thermal explosion disconnector is connected with the first lightning protection unit and the second lightning protection unit, and the leakage current monitoring module is used for collecting the leakage current value of the first lightning protection unit in real time; under the condition that the leakage current value of the first lightning protection unit exceeds a preset action current threshold value, the leakage current monitoring module controls the thermal explosion disconnector to trigger a disengagement action, so that the top end of the first lightning protection unit is separated from the second lightning protection unit, and then the first lightning protection unit can rotate towards the ground around the hinged fixed base under the action of self weight; therefore, the first lightning protection unit and the second lightning protection unit are reliably separated, and timely separation of the fault lightning arrester is realized.

The application relates to a device for preparing ceramic blocks by self-propagating high-temperature synthesis, and belongs to the technical field of ceramic preparation. The device comprises a ceramic block limiting device and a detonation-driven flyer device arranged above the ceramic block limiting device; after the explosion of the explosive in the detonation-driven flyer device, a flyer is driven to impact the ceramic block limiting device; the ceramic block limiting device comprises a top cover, a constraint component coaxially sleeved outside the top cover and a base connected with the constraint component; the top cover is provided with a groove capable of closely matching a convex side surface of the base, and an outer edge extending outward is arranged at the groove mouth; the constraint component is limited by the abutment of a stepped surface in the constraint component and an upper end surface of the outer edge; an ignition hole for placing an aluminized agent is arranged on the side surface of the top cover, and a through groove for placing an ignition wire in contact with the aluminized agent is arranged on the side surface of the constraint component. The device realizes omnibearing limitation of ceramic initial blanks, and is favorable for obtaining ceramic blocks with high compactness.

Disclosed in the present specification are a composite and a heat-absorbing device, which are applied to products or devices in an abnormal state or in which the abnormal state is likely to occur, and thus can effectively respond to heat, an ignition and an explosion in the abnormal state. For example, the composite and the heat-absorbing device are applied to articles including a plurality of the products or devices, and thus can respond to abnormal heat generation, an explosion and an ignition occurring in any one device or product, and prevent or minimize propagation of the heat generation, the explosion and the ignition to other adjacent devices or products. The composite and the heat-absorbing device also exhibit excellent handling and storage stability. In addition, the present specification can provide a use of the composite and the heat-absorbing device.

The invention discloses a method for simultaneously obtaining ignition temperature and ignition heat of biomass spontaneous combustion, and belongs to the technical field of biomass characteristic detection. Grinding the original biomass sample, and drying to obtain biomass powder; putting the biomass powder sample into a synchronous thermal analyzer to obtain a TG-DSC curve of non-isothermal combustion; a DSC inflection point method is adopted, and the ignition temperature and ignition heat of the biomass powder at different heating rates are determined through a TG-DSC curve of non-isothermal combustion; and carrying out nonlinear fitting on the ignition temperature and the ignition heat of the biomass powder at different heating rates, and substituting the heating rates into a nonlinear fitting equation to obtain the ignition temperature and the ignition heat of the biomass in a stacking state. According to the method, the biomass characteristics are obtained based on experiments and in combination with the thermal explosion theory, and high accuracy is achieved.

The invention provides high-temperature-resistant, high-strength and high-plasticity micro-nano inoculant reinforced die steel and a preparation method. The preparation method of the high-temperature-resistant, high-strength and high-plasticity micro-nano inoculant reinforced die steel comprises the following steps: putting Ti powder, B powder and Al powder into a mixing machine to obtain a mixture; after the mixture is wrapped with aluminum foil, a thermal explosion reaction is carried out, an alloy containing a micrometer-size nucleating agent is obtained, C powder, Ti powder and Fe powder are put into a mixing machine to be mixed, a powder mixture is obtained, and the powder mixture is packaged with the aluminum foil; the method comprises the following steps: heating an alloy containing a micron-sized inoculant and commercial die steel to obtain a melt, adding an aluminum foil packaging powder mixture into the melt until the aluminum foil packaging powder mixture is completely molten, and carrying out impurity removal, vacuum casting, forging and heat treatment to obtain the high-temperature-resistant high-strength plastic micro-nano inoculant reinforced die steel with the yield strength of more than or equal to 970MPa and the tensile strength of more than or equal to 1033MPa at the temperature of more than or equal to 600 DEG C; and the fracture strain is greater than or equal to 13.1%.

The application discloses a UHPC glazed panel and a preparation method thereof. The structure of the UHPC glazed panel comprises a UHPC base body, a reaction bonding layer and a glaze layer which are sequentially stacked, and the reaction bonding layer is formed by a precursor film through a firing process, and the precursor film is diffused and reacted with raw materials of the UHPC base body and the glaze layer in the firing process. By adopting a unique UHPC base body and glaze formula, the application reduces the firing temperature, and avoids thermal damage to the base body and the risk of "thermal explosion" in the firing process. By setting the precursor film, the application initiates in-situ reaction at the interface through the firing process, generates a dense transition layer, i.e. the reaction bonding layer, which is continuously and gradually changed in composition and structure, perfectly matched in thermal expansion coefficient, and has extremely high bonding strength. The UHPC glazed panel has the advantages of high strength, high durability of the UHPC, and the advantages of wear resistance, corrosion resistance, easy cleaning and strong decoration of the glaze layer.

The present specification provides a composite, a heat-absorbing apparatus, manufacturing methods therefor, and uses of the composite and the like. The composite and the like are applied to products or devices that generate heat or has the possibility of ignition or explosion during operation, storage and / or maintenance, thereby enabling effective response to the heat, ignition and explosion. For example, the composite and the like are applied to an article that includes a plurality of the products or devices, so as to respond to abnormal heat generation, explosion and ignition occurring in any one of the devices or products and prevent or minimize the propagation of the heat generation, explosion and ignition to other adjacent devices or products.

The present specification discloses a composite and a heat-absorbing apparatus, which may be applied to a product or a device in an abnormal state or having the possibility of the abnormal state occurring, so as to effectively respond to heat, ignition, and explosion in the abnormal state. For example, the composite and the heat-absorbing apparatus may be applied to an article comprising a plurality of such products or devices so as to respond to abnormal heat generation, explosion, and ignition occurring in any one of the devices or products, and block or minimize the propagation of such heat generation, explosion, and ignition to the other adjacent devices or products. The composite and the heat-absorbing apparatus also have excellent handleability and storage stability. The present specification may also provide a use of the composite and the heat-absorbing apparatus.

The present specification discloses a composition and a use thereof. The composition may form a low-density layer, sheet or film having excellent delay or prevention characteristics against heat and flames, and excellent flame retardancy. Such a layer, sheet or film may be referred to as a foam sheet. The present specification also discloses the composition or the foam sheet. For example, the composition or the foam sheet is applied to a product formed by integrating a plurality of elements, whereby it is possible to effectively respond to heat or flames generated from the elements while uniformly maintaining the temperature of the product. For example, the composition or the foam sheet is applied to the product, whereby even when abnormal heat generation, explosion, or ignition occurs in one of the plurality of elements, it is possible to prevent or minimize the influence of such heat generation, explosion, or ignition on other adjacent elements.

Disclosed in the present specification are a composite and a heat-absorbing device, which are applied to products or devices in an abnormal state or in which the abnormal state is likely to occur, and thus can effectively respond to heat, an ignition and an explosion in the abnormal state. For example, the composite and the heat-absorbing device are applied to articles including a plurality of the products or devices, and thus can respond to abnormal heat generation, an explosion and an ignition occurring in any one device or product, and prevent or minimize propagation of the heat generation, the explosion and the ignition to other adjacent devices or products. The composite and the heat-absorbing device also exhibit excellent handling and storage stability. In addition, the present specification can provide a use of the composite and the heat-absorbing device.

The utility model discloses a thermal explosion deburring device with stable quality, which belongs to the technical field of thermal explosion deburring, and adopts the technical scheme that the thermal explosion deburring device comprises a protective shell, a buffer mechanism is fixedly connected to the inner side of the protective shell, a working cavity is fixedly connected to the surface of the buffer mechanism, and an air inlet mechanism is fixedly connected to the rear side of the working cavity; a sealing door is rotatably connected to the front side of the protective shell, a placing disc is slidably connected to the inner side of the working cavity, an ignition device is fixedly connected to the right side of the working cavity, and the ignition end of the ignition device penetrates through the buffer mechanism and extends to the inner side of the working cavity; according to the buffer mechanism, through cooperative arrangement of a rubber pad, a sleeve, a buffer spring, a connecting piece, a contact rod and a buffer plate, when shock waves are generated by explosion in the working cavity, the buffer plate can directly bear the impact force of the shock waves, the buffer plate extrudes the connecting piece through the contact rod after being stressed, and then the buffer spring is compressed; the buffer spring absorbs energy of shock waves in the compression process.

The present specification discloses a composition for use in a product or element that generates heat or has a potential for ignition or explosion during the driving, storage and / or maintenance process, thereby being able to effectively respond to heat, ignition and explosion. For example, the composition is applied to an article comprising a plurality of products or elements so as to be able to respond to abnormal heat, explosion and fire occurring in any one of the elements or products and prevent or minimize the propagation of such heat, explosion and fire to other adjacent elements or products. The composition also exhibits excellent operability and storage stability. The present specification may also provide uses of the composition.

The application discloses a method for determining critical moisture content of explosive material, which comprises the following steps: obtaining explosive material with different moisture contents and determining the moisture contents; researching thermal decomposition characteristics and determining a moisture content interval of thermal explosion experiment; obtaining an isothermal delay period of the explosive material with a certain moisture content through the thermal explosion experiment; obtaining isothermal delay periods of the explosive material with different moisture contents; and analyzing the relationship between the isothermal delay period and the moisture content to determine the critical moisture content of the explosive material. The method can be used to obtain the critical moisture content of the explosive material with a certain size, and has more guiding significance for safety engineering application of the explosive.

The present specification discloses compositions and uses thereof. The composition can form a layer having both excellent thermal resistance and flame retardant properties. The invention further discloses application of the composition. For example, the composition is applied to a product formed by integrating a plurality of elements, whereby heat generated by the elements can be effectively treated. Applying the composition to such a product makes it possible to prevent or minimize the effects of such heat, explosion and / or fire on other adjacent elements, for example, even when abnormal heat, explosion or fire occurs in any of the plurality of elements. The composition can also stably exhibit such functions over a long period of time.

The invention relates to the technical field of natural coke development, in particular to an experimental device for measuring closed hole gas output in natural coke in real time, which comprises a temperature control device, a sample cracking tank is arranged in the temperature control device, and a gas outlet of the sample cracking tank is communicated with a gas collecting and measuring device; the sample fracturing tank comprises a tank body and a tank cover, and the tank cover is communicated with the gas collecting and measuring device; the tank body is arranged in a temperature control device to maintain the temperature required by the reaction, and a crushing assembly coupled by adopting multiple crushing modes is arranged in the tank body; an intercepting assembly is arranged on the tank cover and is used for intercepting powder generated by crushing the natural coke sample to enter the gas collecting and measuring device. The device is simple in structure and convenient to operate, can efficiently and safely collect the gas in the natural coke closed hole, can accurately measure the gas content in the natural coke closed hole, provides evaluation parameters for judging the thermal explosion property of the natural coke, and is suitable for experimental research in the field of natural coke development.

The utility model relates to the technical field of lightning arresters, in particular to a matched insulated cross arm lightning arrester, which is mounted on a telegraph pole and comprises a cross arm body, a first mounting mechanism, a support plate, a mounting bracket, a second mounting mechanism, a fixing port, a thermal explosion disconnector, a lightning arrester body and a fixing mechanism, the insulator supporting cross arm adopts internal and external insulation treatment, the first mounting mechanism is arranged on the cross arm body and used for fixing the cross arm body to a telegraph pole, the multiple supporting plates are fixedly arranged on the cross arm body, and the mounting support is arranged on the cross arm body. And the thermal explosion disconnector and the lightning arrester body can be conveniently installed and fixed through movement and rotation of the driving ring, so that the problem of relatively low installation efficiency of the lightning arrester and the thermal explosion disconnector in the prior art is solved.

Disclosed in the present specification are: a composite to be applied to products or devices that are in an abnormal state or are likely to be in an abnormal state, so as to effectively respond to the abnormal state; and a fire extinguishing device. For example, the composite and the like are applied to an article including a plurality of the products or devices, so as to respond to abnormal heat generation, explosions and ignition that occur in any one device or product, and prevent or minimize the propagation of the heat generation, explosions and ignition in other adjacent devices or products. The composite and the like also exhibit excellent handling properties and storage stability. The present specification can also provide uses of the composite and the like.

The application discloses a calcium-based tar residue composite gasification briquette based on a carbon dioxide capturing process, which comprises the following components in parts by mass: 100 parts of coal powder; 1-10 parts of slaked lime calculated according to calcium oxide; 1-15 parts of coal tar residue; and 1-10 parts of a high molecular binder; the use amount of each raw material is the use amount after moisture is deducted; the mixture is formed and dried by using boiler flue gas, and the preparation is completed while capturing carbon dioxide; the mechanical strength and thermal stability of the gasification briquette are improved due to the combination of the organic high molecular binder and the tar residue; the obtained gasification briquette has high mechanical strength and low production cost, and is not prone to thermal explosion and powdering during gasification, and can meet the requirements of coal gasification on granular raw materials; meanwhile, carbon dioxide capturing and resource utilization are realized during the preparation of the composite gasification briquette, and the disposal of coal tar residue hazardous waste is realized by blending and burning the composite gasification briquette in a pressurized gasification slagging furnace.

The invention relates to a preparation method of a high-temperature alloy blank embedded with cooling liquid, which comprises the following steps of: forming a cylindrical high-temperature alloy block with nickel-based high-temperature alloy powder on the periphery by a cooling core consisting of Ti powder, Al powder, Mg powder and Zn powder through a sheath structure, and opening an air exhaust hole of a sheath; then the high-temperature alloy block is pressed in a stepped heating mode, so that an internal heat conduction and heat dissipation carrier structure is constructed, firstly, the Ti powder and the Al powder are pressed at the temperature of 700 DEG C, then the Ti powder and the Al powder are pressed at the temperature of 1070 DEG C, the Ti powder and the Al powder are subjected to plastic deformation, the Mg powder is in a softened state and is dispersed and distributed in the tissue, and high-temperature alloy powder particles are recrystallized; and after pressing is conducted at the temperature of 1200 DEG C, the Ti powder and the Al powder are subjected to a thermal explosion reaction, the organization structure becomes disordered, the Mg powder is in a softened state and is dispersed and distributed in the organization, high-temperature alloy powder particles are completely recrystallized, and the compactness reaches 100%.

The application provides a kind of pellet return utilization method, through the method steps provided by the application, the pellet return is used for fluidized reduction ironmaking raw material, only needs moderate processing, and does not need to be finely ground to the concentrate particle size level required for pelletizing, thereby avoiding excessive wear of equipment, reducing grinding cost.Moreover, when used for fluidized bed reduction ironmaking, the pellet return has high cold and hot strength, good reducibility, and does not produce crystallization water decomposition endotherm and thermal explosion problem, thus having more excellent metallurgical properties than conventional iron ore powder raw material for fluidized bed, can effectively avoid particle pulverization, reduce sticking and loss of flow, and can reduce energy consumption, improve the production stability of fluidized bed.

The present specification discloses a composite material and a heat absorbing device which can be applied to a product or element which is in an abnormal state or is likely to enter the abnormal state, so as to effectively respond to heat, ignition, and explosion in the abnormal state. For example, the composite material and the heat absorbing device can be applied to an article including a plurality of the products or elements, so as to respond to abnormal heat generation, explosion, and ignition that occur in one of the elements or products, and prevent or minimize the propagation of such heat generation, explosion, and ignition to other adjacent elements or products. The composite material and the heat absorbing device also exhibit excellent handling and storage stability. The present specification may also provide the use of the composite material and the heat absorbing device.

The invention discloses a composition, a fire extinguishing device and application of the fire extinguishing device. The composition and the fire extinguishing device can be applied to products having the likelihood of abnormal heat, fire and / or explosion during driving, storage and / or maintenance processes to effectively respond to heat, fire and explosion. The composition and the fire extinguishing device can be applied to, for example, articles including a plurality of products in response to abnormal heat, explosion and / or fire occurring in any one of the products, and can prevent such heat, explosion and / or fire from propagating to other adjacent products. The composition and the fire extinguishing device also have excellent operability and storage stability. The invention further discloses application of the composition and the fire extinguishing device.