123 results about "Steam explosion" patented technology

Material cage type steam explosion equipment relates to the technical field of steam explosion and comprises an explosion kettle body, a material cage is detachably installed in the explosion kettle body, and the material cage is installed in the explosion kettle body in a rotating mode through a material cage rotating structure with the axis of the material cage as the rotating center. The steam explosion kettle solves the problems that in the prior art, when a steam explosion kettle body is large, materials are prone to being stacked when the steam explosion kettle body is filled with the materials, the material explosion effect is poor, charging and discharging are troublesome, and the material explosion efficiency is affected.

An instant opening valve for steam explosion equipment relates to the technical field of instant opening valve structures and comprises a cylindrical valve body, a valve cover for opening and closing a release port of the valve body is arranged on the outer wall of the valve body in a swinging manner, a plurality of clamping jaws arranged in a swinging manner are arranged on the periphery of the outer wall of the valve body, and a matching inclined surface is arranged between the contact surfaces of the clamping jaws and the valve cover. The problems that in the prior art, a pull explosion air cylinder is limited by the structure, and the sealing problem and the release time requirement are difficult to solve are solved; and in the actual application process, the ball valve is seriously abraded and is difficult to realize large scale, so that the ball valve cannot be applied to large-scale steam explosion equipment.

The utility model discloses a waste heat recovery device of a straw steam explosion wall, and relates to the technical field of waste heat recovery of the steam explosion wall, the waste heat recovery device of the straw steam explosion wall comprises a steam explosion tank and a material receiving device, the discharge port of the steam explosion tank is communicated with the feed port of the material receiving device, and the discharge port of the steam explosion tank is communicated with the feed port of the material receiving device. A steam outlet of the material receiving device is communicated with the settling chamber through a first pipeline, and a steam outlet of the settling chamber is communicated with the heat exchanger through a second pipeline. Straw in steam can be removed through the settling chamber, then the steam is cooled through the heat exchanger, cooled gas is discharged into the air, heat, lost in the heat exchanger, of the steam can be absorbed and applied by another heat exchange medium in the heat exchanger, and therefore waste heat recovery of the steam explosion wall of the straw is achieved.

The invention discloses an endogenous steam in-situ braking expansion device and a hard carbon material preparation method, and belongs to the technical field of biomass pretreatment, and the endogenous steam in-situ braking expansion device comprises a steam explosion reaction cabin and a water storage cabin which are communicated. An electric heating device is arranged outside the steam explosion reaction cabin, the steam explosion reaction cabin is communicated with the water storage cabin, and an inductance heating device is arranged outside the water storage cabin. The brake expansion device adopts a mode of combining electric heating and inductive heating, water vapor is generated in situ, and energy loss caused by vapor condensation is effectively reduced. Compared with a traditional steam explosion machine, the steam explosion machine has the advantages that energy consumption is effectively reduced, materials can be conveniently fed and discharged, and meanwhile the problem that steam is generated, enters the steam explosion reaction cabin, is condensed and drips on the materials, and consequently treatment is not uniform is solved.

The utility model discloses sodium chondroitin sulfate extraction equipment, which relates to the technical field of sodium chondroitin sulfate production and comprises a steam explosion device, an enzymolysis device, a centrifugal device and a filtering device which are sequentially connected. The steam explosion device comprises a first tank body, a feeding port formed in the first tank body, a discharging port formed in the bottom of the first tank body and a storage barrel connected with the bottom of the discharging port, and a one-way air inlet assembly is arranged on the first tank body. The enzymolysis device comprises a second tank body, a stirring assembly and a heating assembly arranged on the outer surface of the second tank body; material conveying pipe assemblies for communicating the steam explosion device with the enzymolysis device, the enzymolysis device with the centrifugal device and the centrifugal device with the filtering device are arranged between the steam explosion device and the enzymolysis device, between the enzymolysis device and the centrifugal device and between the centrifugal device and the filtering device; the method has the advantages of low production cost, greenness and no pollution.

The invention provides a method for determining tobacco stem steam explosion pretreatment pressure intensity. The method comprises the following steps that (1) the filling amount of tobacco stem materials is determined according to the capacity of a steam explosion equipment reactor; (2) determining the dwell time t, min of the reactor; (3) determining the size of a blasting factor R according to the requirements of the tobacco stems after steam blasting pretreatment; (4) calculating the pressure intensity P and MPa according to the following formula; r is equal to-0.395 + 1.135 p / 3.06; and (5) the obtained value p is the pressure intensity of the steam explosion pretreatment of the tobacco stems. According to the determination method, the tobacco stem steam explosion pretreatment pressure is determined according to different materials and the requirements of products after steam explosion, and the method is simple, rapid, efficient and accurate.

The present application provides a kind of bamboo piece steam explosion equipment and method, including equipment body and pressure maintaining mechanism, the pressure maintaining mechanism includes the steam pipeline being arranged in equipment body and the valve group being fixed on steam pipeline;It also includes the positioning mechanism being movably arranged in equipment body for carrying the positioning mechanism of bamboo piece;And the transmission part being movably arranged in equipment body is connected with positioning mechanism;Bamboo piece is placed to positioning mechanism fixed, steam is supplemented to equipment body by steam pipeline and pressure is maintained, then control valve group makes equipment body steam explosion, while in the process of pressure maintaining and steam explosion, transmission part pulls positioning mechanism to move in equipment body;The present application makes bamboo piece in the steam explosion process of equipment body in the function of active state, to improve the utilization rate of steam explosion bamboo piece and steam explosion efficiency, and solve the problem of destroying bamboo piece shape in the process of steam explosion.

The present invention relates to a nuclear power plant with improved steam explosion mitigation performance, the nuclear power plant comprising: an integrated reactor including a hemispherical first portion inside which a core and a steam generator are positioned and a cylindrical second portion positioned above the first portion; a containment vessel for accommodating the integrated reactor, having a cooling space surrounding the integrated reactor, and including a first containment portion facing the first portion and a second containment portion facing the second portion; and a lower structure which is located in the cooling space and is located under the integrated reactor, wherein the lower structure comprises a first plate and a second plate disposed below the first plate, and the first plate and the second plate are arranged in a horizontal direction and face each other.

The invention relates to the technical field of computer aided design, discloses a three-phase analogue simulation method and system for a steam explosion phenomenon, and is used for solving the technical problem that the efficiency and the precision of simulation of the steam explosion phenomenon are insufficient in the prior art. The method comprises the steps that modeling is conducted on a steam explosion scene based on physical scene parameters, a control equation set based on three-phase immiscible flow is obtained, and three phases comprise a relative high-temperature liquid phase, a relative low-temperature liquid phase and a gas phase; establishing a closed relation model for describing interphase pressure relaxation, mass transfer, heat transfer and momentum exchange; and calling a step-by-step solving strategy, and sequentially solving a convection step and a relaxation step of the control equation set based on the control equation set and the closed relation model to realize simulation of the steam explosion phenomenon. The method is used for improving the simulation precision and simulation efficiency of the steam explosion phenomenon.

The invention relates to the technical field of steam explosion, and particularly discloses a straw continuous steam explosion device which comprises an explosion tank, a steam supply unit, a material uniformizing unit and a material turning unit. The hollow rotating shaft rotates to drive the steam exhaust supporting rod to rotate in the circumferential direction, high-temperature steam dynamically covers the bottom space of the explosion tank from the steam opening, and three-dimensional contact between the steam and straw is achieved. The deflection disc obliquely deflects relative to the spherical sleeve, so that the straws are uniformly dispersed to the material uniformizing opening; deflection synchronously drives the material screening bag to shake, vibration screening is achieved, and blocking due to caking is avoided. When the fan-shaped turning plate periodically turns downwards, the fan-shaped sealing plate is unfolded, so that the straws flow into the upper layer of the turning plate through the stepped groove; during upturning, the fan-shaped sealing plates close the stepped grooves, outer-layer straw is thrown to the center area of the annular support, axial and radial double turning from bottom to top and from outside to inside is formed, steam dead corners are thoroughly broken, full-dimension uniform steam receiving of the straw is achieved, and the blasting effect and treatment continuity are greatly improved.

A system for removing or reducing the accumulation of fouling deposits within furnaces and heat exchangers in industrial systems by introducing a periodic steam blast. The steam blast is directed into the process stream from which fouling deposits precipitate onto the heat exchanger surfaces. The steam blast increases the flow rates, creates turbulence and increases the temperature within the heat exchanger to dislodge foulant in both soft and hardened states from internal surfaces upon which foulants have adhered and accumulated.

A method for refining molten iron is provided that can be carried out safely and stably without steam explosions or machine losses when using the heat of high-temperature slag remaining in a reaction vessel to preheat a cold iron source. The method uses the heat of slag generated after the completion of refining a previous charge of molten iron to preheat the cold iron source. The method includes a first step of discharging the molten iron refined while it remains in the reaction vessel as residual slag from the reaction vessel, a second step of charging the cold iron source through a scrap chute as a coolant for cooling the residual slag to solidify it, and a third step of charging the next charge of molten iron into the reaction vessel and refining it. In the second step, the K value calculated using a predetermined relational expression using the mass Wsl of the residual slag, the mass Wsc of the cold iron source charged through the scrap chute, and the temperature Tf of the hot material remaining in the furnace in the first step is less than 0, and no waiting time T is required after charging the cold iron source.

The application provides a split type steam explosion equipment, and relates to the technical field of steam explosion equipment. The steam explosion equipment comprises a rack, a steam explosion tank is fixedly connected inside the rack, a lower piston sealing plate and an upper piston sealing plate are slidably connected inside the steam explosion tank, a lifting push rod is fixedly connected to the top surface of the upper piston sealing plate, a buffer mechanism is arranged inside the rack, a feeding mechanism is arranged outside the steam explosion tank, and a silencing mechanism is arranged outside the rack. The steam explosion tank, the buffer mechanism, the feeding mechanism and the silencing mechanism are arranged, the whole steam explosion machine is split into multiple independent components, the processing difficulty is greatly reduced, transportation and on-site installation are facilitated, and the maintenance cost is reduced. The buffer mechanism, the feeding mechanism and the silencing mechanism can significantly improve the operation stability and operation convenience of the equipment, effectively guarantee the sealing performance of the device, reduce the noise generated during equipment operation, and improve the use comfort and environmental protection of the equipment.

Process for the production of recycled lignocellulose fragments (10), comprising a step in which refined material (1) from recycled lignocellulose based boards or panels is introduced into a receptacle, and wetted, heated and pressurized using steam; wherein the process comprises a step of steam explosion of the wetted, heated and pressurized material, in which the pressure in the receptacle is reduced by at least 3 bar, and in which recycled lignocellulose fragments (10) are produced; wherein the steam explosion is a multistage steam explosion.

A sampling-based steam explosion consequence analysis method includes the following steps: providing key influencing factors of steam explosion and their corresponding input probability distributions, and providing a steam explosion analysis program; automatically sampling the key influencing factors and generating input cards; inputting the input cards into the steam explosion analysis program to obtain a probability distribution of steam explosion consequences. This method can cover the range of variation of key factors through large-scale sampling and accurately simulate steam explosion consequences using probabilistic methods, thereby providing data support for nuclear power plant safety design and accident consequence assessment. The present invention also provides a computing device.

The present application relates to the technical field of home appliance accessories, and discloses a heating device with explosion anti-dripping, which comprises a heating device body (100) and a valve body assembly (200), wherein the valve body assembly (200) is provided with an explosion channel (211); the heating device body (100) is provided with a deformation piece (110), the deformation piece (110) is used for sensing the heating temperature of the heating device body (100), and when the temperature of the deformation piece (110) reaches a deformation temperature, the deformation piece (110) triggers the explosion channel (211) in the valve body assembly (200) to open. The present application has the advantages of being capable of avoiding the dripping phenomenon and having a good steam explosion effect.

The invention relates to the technical field of aluminum alloy waste machining equipment, in particular to a purifying and smelting device for recycling aluminum alloy waste. Comprising a bottom plate and a smelting furnace, the smelting furnace is arranged on the bottom plate and used for smelting aluminum alloy waste, a supporting frame is arranged on the bottom plate, and a hollow frame is installed on the supporting frame. By arranging the automatic feeding mechanism and the inclined rotary drum structure, automatic operation of the whole process from conveying, pretreatment to furnace entering of aluminum alloy waste is achieved, operators are prevented from making close contact with a high-temperature smelting furnace, harm to workers caused by heat radiation, metal splashing and sudden accidents is effectively reduced, and the production efficiency is improved. The heater and the discharging mechanism are arranged in the device, before the aluminum alloy waste enters the smelting furnace, residual water on the surface of the aluminum alloy waste can be fully evaporated to dryness, steam is discharged in time through a negative pressure system formed through suction of the air pump, the possibility of steam explosion caused by damp waste is fundamentally reduced, and stable equipment operation and personnel safety are guaranteed.

The utility model provides a high-fiber corn by-product steam explosion smashing device which comprises an explosion tank body, a blocking piece used for blocking the explosion tank body is installed at the bottom of the explosion tank body, a detachable top cover is installed at the upper end of the explosion tank body, and a stop valve used for being connected with a high-temperature steam pipe is installed on the outer surface of the lower end of the explosion tank body. An electromagnetic valve is installed on the outer surface of the upper end of the blasting tank body, the end, away from the blasting tank body, of the electromagnetic valve is communicated with a silencing pot, an exhaust pipe is installed on the upper portion of the outer surface of the end, away from the electromagnetic valve, of the silencing pot, a water collecting box is arranged under the silencing pot, and a plurality of supporting pieces are evenly installed at the bottom of the water collecting box. A limiting piece used for limiting and supporting the silencing pot is installed on the side face, away from the blasting tank body, of the water collecting box, and a drainage valve is installed at the bottom of the water collecting box.

The invention discloses a method for repairing the surface of a failed precious metal titanium anode, and relates to the technical field of electro-catalytic anodes, the method comprises the following steps: S100, soda boiling: soaking a failed anode plate into a fused alkali solution at 360-560 DEG C for 10-40 minutes, the alkali solution comprises main salt: KOH and / or NaOH; the auxiliary component is NaNO3 and / or KNO3; an additive; the anode subjected to soda boiling is quenched and immersed in cold water for 2-15 min, and a residual coating on the surface of the titanium anode is stripped through steam explosion; the titanium anode obtained after alkali explosion is soaked in acid liquor, residual dirt on the surface of the titanium anode and hanging alkali are subjected to an acid-base neutralization reaction, and the cleanliness of the surface of the titanium anode is further improved; and S400, washing with water and drying. According to the method, the steps of high-temperature soda boiling and shock cooling alkali explosion are creatively combined, the internal structure of the failed coating is fully loosened through soda boiling, the binding force between the internal structure of the failed coating and a titanium substrate is remarkably weakened, and the loosened coating is subjected to efficient and thorough physical stripping through generated high-pressure steam explosion and huge thermal stress during alkali explosion.

The utility model relates to the field of forage grass processing, and discloses a steam explosion device for processing rice straws to produce roughage, which comprises a vertically arranged explosion tank, a feed port arranged above the explosion tank, a feed valve arranged on the feed port, a discharge port arranged below the explosion tank, and a discharge valve arranged on the discharge port. A plurality of air inlets are formed in the bottom of the blasting tank; a plurality of spiral material guide plates which are uniformly distributed on the circumference are fixed on the inner wall of the blasting tank; the spiral material guide plates extend to the lower part of the blasting tank from the upper part of the blasting tank; and each air inlet is positioned between two corresponding adjacent spiral material guide plates. The problems that in a traditional device, materials are heated unevenly, and the fiber degradation effect is poor are effectively solved, full contact of steam and straw is achieved, the straw is heated evenly, and the straw treatment efficiency and the coarse fodder quality are improved.

The invention relates to the technical field of smoke exhaust devices, and discloses a smoke exhaust device for metal casting processing desulfurization, the smoke exhaust device for metal casting processing desulfurization comprises a casting desulfurization boiler, one side of the casting desulfurization boiler is fixedly connected with a safety valve, and the other side of the casting desulfurization boiler is fixedly connected with a smoke exhaust device. A first smoke exhaust pipeline is fixedly connected to one side of the safety valve, a heat exchange device is movably connected to the bottom of the first smoke exhaust pipeline, a metal part heating device is arranged on the back face of the heat exchange device, a second smoke exhaust pipeline is fixedly connected to the bottom of one end of the heat exchange device, and a smoke outlet pipe is fixedly connected to one end of the second smoke exhaust pipeline. The top of the smoke outlet pipe is fixedly connected with a cleaning mechanism, the temperature in smoke can be effectively reduced, effective circulation of energy is achieved, meanwhile, moisture on the metal part can be removed, and therefore the amount of steam generated by rapid vaporization when the moisture makes contact with the high temperature is greatly reduced, and the risk of steam explosion can be reduced.

The invention belongs to the technical field of pulping, and particularly relates to a method for preparing dissolving pulp by using herb gold violet as a raw material. The preparation method comprises the following steps: crushing, screening, washing and filtering grass gold violet serving as a biomass raw material, entering a transfer bin, putting the grass gold violet into a reaction kettle, carrying out steam explosion twice and alkali liquor reaction, and after the reaction is finished, squeezing, pulping, bleaching, secondary squeezing, forming and drying to obtain the finished product dissolving pulp. The preparation method disclosed by the invention is high in environmental protection property, high in pulping yield and excellent in pulp quality, and provides a new direction for industrial pulping.

The utility model relates to the technical field of steam explosion, and discloses a steam explosion blow-off assembly and steam explosion equipment, the steam explosion blow-off assembly comprises a nozzle communicated with a cooking container, the nozzle is provided with an inner diameter gradually-shrinking section and an inner diameter gradually-expanding section which are sequentially arranged in the direction away from the cooking container, a throat part is formed at the joint of the inner diameter gradually-shrinking section and the inner diameter gradually-expanding section, so that materials in the cooking container can pass through the throat part; according to the utility model, the inner diameter reducing section of the nozzle can narrow the blowing channel of the material to be subjected to steam explosion in the cooking container, so that the material to be subjected to steam explosion in the cooking container can be continuously blown at a smaller blowing flow, and an action element does not need to be arranged on the blowing pipeline of the cooking container for intermittent blowing; furthermore, a plurality of defects existing in the existing intermittent spraying discharging can be overcome; the inner diameter gradually-shrinking section can effectively increase the flow speed of the steam explosion material to be sprayed, and then through quick release of the inner diameter gradually-expanding section, the steam explosion effect of the material to be subjected to steam explosion is remarkably improved.

The invention discloses a lignocellulose continuous multi-stage steam explosion pretreatment process and device, and relates to the technical field of lignocellulose raw material pretreatment. Comprising the following steps: continuously conveying lignocellulose loaded with a chemical additive into a steam explosion pretreatment reaction tube, carrying out continuous three-stage low-temperature reaction coupling high-pressure explosion treatment, and spraying to obtain a pretreated lignocellulose material; wherein the specific parameters of the continuous three-stage low-temperature reaction coupling high-pressure blasting treatment are as follows: the treatment is performed for 5-9 minutes at the temperature of 80-120 DEG C in the first-stage treatment, the treatment is performed for 2-6 minutes at the temperature of 140-160 DEG C in the second-stage treatment, and the treatment is performed for 1-3 minutes at the temperature of 180-220 DEG C in the third-stage treatment; the pressure is 0.5 to 2.0 MPa. According to the continuous steam explosion lignocellulose complete equipment and the pretreatment method, effective continuous production of biomass raw materials can be achieved, low-inhibitor lignocellulose hydrolysis sugar liquid is obtained, fermentation conversion of downstream microorganisms is facilitated, wastewater discharge and use of chemical auxiliaries are reduced, and commercialized large-scale production is expected to be further achieved.

According to the condensate temporary storage device, the pressure relief mechanism is arranged on the tank body, the air pressure in the tank body is adjusted through the pressure relief mechanism, so that explosion is relieved or prevented, potential safety hazards of a liquid storage tank are reduced, meanwhile, the temperature of condensate is controlled through the heat exchanger, and the temperature of the condensate is controlled through the heat exchanger. The explosion danger caused by the fact that the pressure in the tank body rises too fast due to the fact that the temperature of the condensate is too high and saturated steam explosion of the condensate in the tank body is caused is avoided, and follow-up use or condensate detection is facilitated through temperature control over the condensate.

This invention provides a silicon-carbon composite material based on steam explosion, its preparation method, and its application, belonging to the field of silicon-carbon composite material technology. The preparation method includes the steps of preparing a precursor composite slurry, steam explosion, and simultaneous carbonization and activation. The steam explosion treatment step involves pumping the precursor composite slurry into a steam explosion reactor, introducing saturated steam, and maintaining pressure at 200-280℃ and 2.0-4.5MPa for 30-40 minutes. During the pressure maintenance, ultrasonic assistance is activated. After the pressure maintenance, a step-by-step depressurization is performed, i.e., 3-8 depressurizations are completed within 6-10 seconds, with each depressurization pressure being 10-30% of the previous one. After each depressurization, the pressure is held momentarily for 0.1-0.2 seconds, and finally completely depressurized to atmospheric pressure. After drying, the exploded product is obtained. The silicon-carbon composite material obtained by the method of this invention exhibits excellent cycle performance and rate performance when applied to batteries.

The invention relates to the technical field of steam explosion of animal fat emulsion, in particular to a steam explosion production method of animal fat emulsion, which comprises the following steps: selecting fresh leaf fat without deterioration, unstacking, unboxing and removing a packaging film; the selected leaf fat is placed in a crusher, the raw materials are crushed, and the crushed raw materials are placed in a meat mincer to be subjected to coarse mincing treatment; the pretreated raw materials are weighed according to 80% of the volume of a steam explosion tank and loaded into the steam explosion tank, the pressure in the tank rises to 2.0-2.5 MPa, the internal raw materials are heated to 1.0-1.5 MPa and 210 DEG C or above, and then explosion is conducted; the mixture obtained after blasting passes through a centrifugal filter with the diameter ranging from 0.1 mm to 1.0 mm, and slag is removed; carrying out homogenization strengthening on the material without the dregs through a pipeline type emulsification pump; the system can be applied to food enterprises, catering enterprises and families, is low in equipment investment, simple in process, energy-saving, environment-friendly, high in automation and intelligence degree and capable of greatly improving the production efficiency and the product standardization.

A method for processing a lignocellulose biomass material with a moisture content below 10 weight-% and an ash content below 1.0 weight-% includes: adding an acid catalyst to the lignocellulose biomass material; after adding the acid catalyst, thermally treating the lignocellulose biomass material with steam at an elevated pressure and an elevated temperature in at least one reactor; discharging the lignocellulose biomass material and blow steam from the at least one reactor using a steam explosion discharge device; and forming pellets and / or briquettes from at least part of the discharged thermally treated lignocellulose biomass material.

The utility model discloses a steam absorption device for a steam explosion material receiving bin, which comprises an absorption device bin body which is of a hollow columnar structure, the first end of the absorption device bin body in the length direction is open and is connected with an exhaust port of the material receiving bin, and a plurality of air outlet holes are formed in the second end of the absorption device bin body in the length direction; the buffer baffles are fixed to the inner wall of the absorption device bin body and arranged in the length direction of the absorption device bin body in a staggered mode at intervals, and a plurality of air holes are formed in the buffer baffles. According to the steam absorption device for the steam explosion material receiving bin, provided by the utility model, secondary buffering can be carried out on high-speed shock waves generated by steam explosion, and particles or liquid drops in airflow can be intercepted at the same time.