548 results about "Hearth" patented technology

The invention discloses a method and system for optimizing temperature uniformity of a hearth of a temperature isostatic pressing machine, and the method comprises the steps: arranging a plurality of layers of temperature measurement planes and a temperature monitoring network in the hearth, collecting all-region temperature data in real time, calculating three-dimensional temperature field distribution and uniformity indexes, generating a heater power regulation and control instruction in combination with the indexes, and controlling the temperature uniformity of the hearth of the temperature isostatic pressing machine. And dynamically adjusting the output power of the partitioned independent controllable heater array. According to the method, the whole area of a hearth is covered through multi-layer temperature measurement, temperature uniformity is evaluated through quantitative indexes, prospective power compensation is achieved with the help of a predictive control algorithm, control parameters are optimized through a thermodynamic simulation model, the problems that a traditional temperature isostatic pressing machine is incomplete in temperature monitoring and poor in heating regulation and control pertinence are solved, and the temperature isostatic pressing efficiency is improved. And the temperature uniformity of the hearth is greatly improved, the heating consistency of workpieces is guaranteed, and the device is suitable for a warm isostatic pressing machining scene of high-precision material forming.

The invention relates to the technical field of Isa furnace metal smelting processes, in particular to a numerical simulation method and system for reaction of pulverized coal at the upper part of a hearth of an Isa furnace and monitoring of flue gas components at an outlet, which are based on reasonable basic assumption and in combination with field parameters, construct a simulation equation and perform parameter coupling on a control equation in the simulation process. The physical quantity field distribution in the hearth in the metal smelting process of the Isa furnace can be subjected to accurate numerical simulation, the obtained data is matched with the actual production data, the corresponding production rule can be obtained, and the method has important guiding significance for controlling the coal consumption of the Isa furnace and the flue gas components at the outlet; besides, the numerical simulation method for monitoring the pulverized coal reaction at the upper part of the hearth of the Isa furnace and the flue gas components at the outlet and the corresponding data can be used as a basic support for intelligent feeding or other related parameter management and control in the metal smelting process, so that more accurate management and control in the smelting production link of the Isa furnace can be realized; and the effects of reducing cost and increasing efficiency are achieved.

The application discloses a double-hearth two-stage heating vacuum distillation furnace, which comprises an evaporation furnace and a condensation furnace which are communicated through a gas passage, wherein the evaporation furnace comprises an evaporation furnace body and at least one top heating mechanism which is detachably arranged on the top of the evaporation furnace body; and the condensation furnace comprises a condensation furnace body, a side heating structure and a furnace cover, wherein the condensation furnace body is divided into a temperature control condensation chamber and a plurality of layers of multistage condensation chambers, and the gas passage can be combined or replaced according to the required reaction conditions of different materials. The vacuum distillation furnace can collect different metals through the gradient change of the temperature of the two hearths, reduces the process of secondary distillation of volatile matters after the furnace is stopped, can complete the processing of diversified raw materials, improves the work efficiency and reduces the processing cost; the modular top heating mode directly radiates heat to the materials, improves the heat utilization rate, can realize the working mode of stopping the furnace without stopping the work, helps to improve the work efficiency, and is convenient for completing the furnace cleaning, maintenance and solid material taking and placing.

The invention provides a top-spraying feeding type high-temperature activation furnace and a control method thereof.The activation furnace comprises a vertical furnace body, and a fuel nozzle, a first combustion-supporting air nozzle, a cooling liquid nozzle and a cold air nozzle are sequentially arranged on a first section, a second section, a third section and a fourth section in a hearth of the vertical furnace body from top to bottom; a reduction gasification area, a peroxidation combustion area, a primary cooling area and a secondary cooling area are sequentially defined in the hearth so as to control the temperature in different areas; the fuel nozzles are arranged in pairs and arranged around the center circle of the hearth in a symmetrical tangent circle opposite spraying mode so that opposite flow can generate turbulent disturbance in the center area of the hearth to establish a first swirling flow field, and a feeding nozzle is arranged on the furnace top of the vertical furnace body to be communicated with the hearth and spray materials towards the first swirling flow field to form top combustion. Therefore, the high-temperature activation treatment of the livestock and poultry excrement is realized.

The invention provides an iterative optimization method and system for the optimal hearth target temperature of a sintering ignition furnace and a storage medium, and the method comprises the steps: obtaining real-time working condition data in a stable operation state, judging an ignition state through an ignition effect prediction model, taking the current hearth temperature as a starting point, carrying out the iterative optimization in a gradual cooling mode when the state is normal, and obtaining the optimal hearth target temperature of the sintering ignition furnace. The state is evaluated again after the target temperature is slightly reduced and stable operation is carried out every time, iteration is continued if the ignition state is kept normal, stopping is immediately carried out if underburning is detected, the previous normal temperature is determined as the critical lowest safety temperature, and finally the optimal target temperature considering energy conservation and quality is obtained by increasing the safety margin. And long-term operation parameters are set. The intelligent closed-loop optimization of the sintering ignition process is realized, the energy consumption is obviously reduced on the premise of ensuring the sintering quality, the optimal balance of the quality and the energy consumption is realized, and the intelligent closed-loop optimization method has the capabilities of automatic triggering, automatic iteration, automatic judgment and automatic setting.

The invention relates to the technical field of vacuum brazing furnace temperature control, and discloses a vacuum brazing uniform heating and cooling system with multi-temperature-zone cooperative control. According to the system, a temperature deviation trend spectrum is generated by matching a multi-zone actual temperature curve with a workpiece target temperature curve, multi-temperature-zone energy dynamic rebalance is started accordingly, and a preliminary power scheduling atlas and collaborative cooling trigger nodes are generated. And then heat flow disturbance compensation amount caused by heat radiation of the hearth is calculated and integrated with the atlas and the nodes to form a unified final process control atlas, and the atlas comprises heating correction and cooling scheduling instructions at the same time. Predictive regulation and control of the furnace temperature change trend and active compensation of temperature interval thermal disturbance can be achieved, the heating process and the cooling process are highly coordinated, and the temperature uniformity and the process consistency of a large or complex workpiece in the brazing process are improved.

The invention discloses a hearth flue gas velocity field measurement method and system based on a multi-layer sonic sensor, and the method comprises the steps: obtaining the sound wave propagation time when a sound wave reaches other sonic sensors after the sound wave is transmitted each time according to the multi-layer sonic sensor; different two-dimensional plane temperature fields are formed based on sound wave propagation time obtained by the same-layer sound wave sensors; according to different two-dimensional plane temperature fields, performing estimation by combining a correlation analysis method and a linear interpolation method to obtain three-dimensional hearth temperature field distribution; constructing a solving equation based on the three-dimensional hearth temperature field distribution, the acoustic wave propagation time and propagation path from the lower acoustic wave sensor to the upper acoustic wave sensor, and a preset flue gas velocity field; and solving the solving equation, outputting unknown parameters in the flue gas velocity field, and reconstructing full-field velocity distribution according to a preset flue gas velocity field formula. According to the method, no hardware cost is increased, the velocity field in the vertical direction of the hearth smoke is accurately measured, and key data support is provided for combustion optimization and intelligent monitoring of a power plant.

The invention relates to the technical field of direct-current combustors. The direct-current burner comprises a nozzle body arranged at the corresponding corner of a boiler hearth, a spray head arranged at an air outlet of the nozzle body and a blade window separation mechanism, an elbow is arranged in the middle of the nozzle body, primary inertial concentration is carried out when pulverized coal airflow passes through, and the concentration a of the fire-facing side is improved; the blade window separation mechanism is arranged in the spray head, and secondary adjustable concentration is carried out when pulverized coal airflow passes through the blade window separation mechanism. When the boiler is in a low-load operation state, the elbow can enable coarse particle pulverized coal with the particle size larger than 50 micrometers to be enriched in a wall-attached mode, high-concentration wall-attached flow with the thickness larger than or equal to 50 mm is formed, and the concentration is 80%-100% higher than that of main flow; the stable combustion of the boiler in a rated load range of 15%-100% can be realized through the adjustment of the control piece; and when the load is low (less than or equal to 30% of rated load), the smoke temperature at the outlet of the hearth is increased by 30-50 DEG C, the ignition condition is improved, the smoke temperature at the inlet of the SCR denitration system is maintained to be more than or equal to 300 DEG C, and the NOx emission concentration is controlled to be below 50mg / m.

The invention discloses asphalt concrete recycled material recycling equipment, which belongs to the technical field of asphalt concrete milling material processing and comprises feeding equipment, heating equipment and metering and stirring equipment. The heating equipment comprises a recycled material regeneration heating roller, a combustor and a low-temperature hearth, the feeding equipment is located at the input end of the recycled material regeneration heating roller, and the output end of the recycled material regeneration heating roller is communicated with the combustor through the low-temperature hearth. The feeding direction of the reclaimed material is opposite to the flame direction of the combustor, and the combustor and the reclaimed material regeneration heating roller are transited through the low-temperature hearth, so that direct contact between the reclaimed material and high-temperature flame is avoided. Low-temperature airflow is conveyed to the inner barrel through the backflow cavity, so that the outlet temperature of the low-temperature hearth is kept in a low-temperature state of about 600 DEG C. The recycled material is gradually heated in the recycled material regeneration heating roller, so that the recycled material and asphalt are prevented from being overheated and aged, the heating efficiency is higher, and the heat utilization is more sufficient.

The invention relates to a partitioned charging and discharging method for a roller hearth quenching furnace, belongs to the technical field of plate heat treatment, and solves the problem of low application efficiency of a roller hearth furnace in the prior art. A roller hearth type quenching furnace partitioned charging and discharging method comprises the steps that S1, virtual partitioning is conducted according to the physical partitioning size of a roller hearth furnace and the type of a plate to be produced; according to the sequence of the virtual partitions, plate material preparation is carried out in sequence, and the real length of each virtual partition is obtained through calibration; s2, after plate feeding is completed, driving motors of the roller hearth furnace and the charging roller bed operate at the same time, and the aluminum alloy plate is driven to enter the furnace to be heated; and S3, after the plates are fed into the furnace and heated through the roller hearth type quenching furnace, the plates in the multiple subareas are sequentially discharged out of the furnace according to the heating time needed by the plates in the subareas. Reasonable partition and sequential charging and discharging of the plates are achieved, and the use efficiency of the roller hearth furnace is improved.

The invention discloses a mounting method of an engineering blackbody element in an industrial heating furnace, which comprises the following steps: three positioning holes are symmetrically formed in an element mounting surface in a triangular shape, a semicircular diversion trench is formed between every two adjacent positioning holes, and the mounting surface is subjected to sand blasting treatment; manufacturing a positioning gasket according to the curvature of the inner wall of the hearth, wherein the positioning gasket is arranged between the element mounting surface and the inner wall of the hearth; coating or spraying a high-temperature-resistant permeation type adhesive on the element mounting surface and the inner wall of the hearth, adhering the element to the inner wall of the hearth, and screwing the element on the inner wall of the hearth by adopting a screw through a positioning hole and a positioning gasket; high-temperature-resistant fastening screws are evenly distributed on the periphery of the element and vertically screwed into refractory bricks or concrete base materials on the inner wall of a hearth to lock the position of the element. According to the method, the defects of traditional engineering black body element installation are overcome, high-strength, long-acting and stable connection between the engineering black body element and the inner wall of the hearth is achieved, the problem that the element is prone to displacement and falling off under the high-temperature working condition is effectively solved, and the continuous effectiveness of kiln energy-saving transformation is guaranteed.

The application provides a filling method for converter joint material, and relates to the technical field of converter smelting.The filling method for converter joint material comprises the following operation steps: step one: laying magnesium-carbon bricks on a new movable hearth steel shell, and installing a conical protective cover above the magnesium-carbon bricks to form a new movable hearth; step two: installing the new movable hearth to a converter body; step three: pouring joint material for joints into the converter from a converter port; step four: rocking the converter three times; step five: rocking the converter to the right, and pouring joint material for joints into the converter from the converter port; step six: keeping the converter still for 3 min; step seven: pouring joint material for joints into the converter from the converter port; and step eight: keeping the converter still, baking the converter, and starting the converter. The filling method for converter joint material can ensure that the joint material is efficiently, accurately and densely filled to the joint, and the service life of the furnace lining is ensured.

The invention discloses an integral pouring method and structure of a blast furnace hearth for replacing a cooling wall. A lining body formed by integrally pouring a high-thermal-conductivity amorphous refractory material is directly arranged on the inner side of a furnace shell; a plurality of hole channels are formed in the furnace shell, cooling elements are arranged in the hole channels, one end of each cooling element is embedded into and penetrates through the lining body and is in close contact with the lining body, a cooling wall is omitted, air gap thermal resistance is avoided, the cooling elements are in direct contact with a high-thermal-conductivity refractory material, heat can be quickly and directly transmitted to a cooling system, and the cooling efficiency is greatly improved; a protective slag iron shell is easily formed on the hot surface of the hearth; the overall pouring structure is free of brick joints, and permeation erosion of molten iron and alkali metal is avoided; the high thermal conductivity ensures that the temperature field of the hearth lining is uniformly distributed, the thermal stress is small, and the ring crack risk of a traditional structure is fundamentally eradicated; if abnormal erosion occurs in a local area, online repair can be performed by adopting a press-in technology, so that the maintenance cost is low, and the service life of the first-generation blast furnace is prolonged.

The utility model discloses a fuel steam boiler, which belongs to the field of steam boilers, and comprises a boiler barrel, and a combustion chamber, a reversal chamber, a first smoke tube assembly, a smoke box and a second smoke tube assembly which are arranged in the boiler barrel, and a feed port and a smoke outlet are formed on the boiler barrel; one side of the reversal chamber is communicated with the first smoke pipe assembly, the other end of the first smoke pipe assembly is communicated with the smoke box, the other end of the smoke box is connected with the second smoke pipe assembly, and the other end of the second smoke pipe assembly is communicated with the smoke outlet. According to the fuel steam boiler, the secondary air inlets, the air blower and the induced draft fan are arranged on the left side and the right side of the hearth of the boiler barrel, so that combustibles can be fully burnt out, heat efficiency is improved, and emission of pollutants is reduced; and meanwhile, through the three-return-stroke design, a downstream combustion structure is formed, and the combustion efficiency and the heat transfer efficiency are greatly improved.

The utility model discloses a special gas burner for a low-temperature hearth, which belongs to the technical field of burner equipment and comprises a barrel, the barrel is fixed with a bottom plate of a heating furnace, a lower brazier brick is arranged in the barrel, a large round hole and a small round hole are arranged at the bottom of the barrel, the large round hole is connected with a fixed disc, an outer gas gun penetrates through the small round hole, and a central gas gun and an incandescent light are mounted on the fixed disc. The outer gas gun, the center gas gun and the main gas pipeline are communicated through a three-way component, the barrel is provided with an air adjusting butterfly valve for controlling combustion-supporting air, and a heat preservation layer is arranged in the barrel. According to the combustor, the concentration of NOx and CO is adjusted through combination of fuel gas classification, flue gas self-circulation and rich-lean combustion technologies, the problems of high CO emission and unstable combustion of a low-temperature hearth are solved, the combustion efficiency and stability are improved, and the combustor is suitable for heating the low-temperature hearth in the industries such as petroleum refining and the like, meets the requirements for environmental protection and energy conservation and has wide application prospects.

The utility model relates to the technical field of heating tube detection, in particular to a high-temperature heating tube performance detection device, which comprises a furnace body with an open top surface and a hearth box cover for sealing the top surface of the furnace body, heat insulation plates are arranged on the inner side walls of the furnace body and the surface of the hearth box cover; a carrier plate for fixing the heating rod is arranged in the furnace body; the furnace body is provided with a box cover locking assembly used for fixing the hearth box cover to the top surface of the furnace body. When the device is used, the heating rod is fixed on the support plate and then is put into the furnace body for airtight detection, so that the scald risk is reduced, the detection is safer, and the detected data is more accurate.

The utility model discloses a novel biomass combustion furnace deashing device, which relates to the technical field of combustion furnaces, and comprises a furnace body, a support frame is fixed on the inner wall of the furnace body, two groups of fire grates are mounted at the top of the support frame, the fire grates are semicircular, a mounting component for mounting the fire grates is arranged at the top of the support frame, and the mounting component is fixed on the inner wall of the furnace body. The utility model has the beneficial effects that when the cam rotates to a high position, the two groups of fire grates are driven to vibrate up and down, the fire grates are vibrated to clean ash through the repeated rotation of the cam, the fire grate structure is a trapezoidal structure gap with a small upper part and a large lower part, the effect of only falling ash without falling materials is achieved under the vibration effect, the air inlet of a hearth is facilitated, and the energy consumption is reduced. A good ash removal effect is achieved under the conditions that the cam keeps a reasonable stroke and an existing combustion layer is not damaged, the two fire grates are combined into a circle, the fire grates are of a two-piece structure, and the fire grates can be conveniently taken out from an access hole.

The utility model discloses a novel biomass combustion furnace chimney device, which relates to the technical field of combustion furnaces, and comprises a furnace body, the top of the furnace body is provided with a radiator for carrying out heat exchange on combustion flue gas, one side of the radiator is communicated with an air outlet pipe, the top of the air outlet pipe is provided with a chimney body, and the chimney body is communicated with the radiator. The chimney has the advantages that the inclined pipe is beneficial to stabilizing the airflow in the chimney, if a straight-barrel-shaped chimney is adopted, the situation that the pulling force of the chimney is not enough can be generated in the high-speed working process of a fan, the airflow in the chimney needs to be supplemented through the inclined pipe, and therefore the chimney is not prone to being damaged. Otherwise, the overall length of the chimney needs to be increased, the cost is increased, the air outlet space of the connecting pipe is blocked through movement of the baffle, and therefore the effect of adjusting the air quantity entering the chimney body is achieved, and the air speed is adjusted according to the feeding and combustion conditions in the hearth.

The utility model discloses a flat type three-face heating box-type furnace hearth, and relates to the technical field of box-type furnace hearths. The utility model comprises an outer layer, the inner wall of the outer layer is provided with a middle layer, and the inner wall of the middle layer is provided with an inner layer. According to the utility model, the bearing mechanism is inserted into the two placing mechanisms which are highly symmetrical by hands and slides to a deeper position of the inner layer along the two placing mechanisms, and the bearing mechanism falls into the placing mechanisms due to gravity along with the sliding of the bearing mechanism; at the moment, the two containing mechanisms with the same height support and limit the bearing mechanism, then a crucible containing powder, liquid and other materials is placed on the containing mechanisms, solid materials can also be placed on the containing mechanisms, and then the adaptability of different heating requirements is greatly improved by adjusting the height of the heated materials. And therefore, the heating effect and the product quality are obviously improved.

The utility model relates to the technical field of cooking equipment, in particular to a baking stove heating furnace, which comprises an aggregate cooking stove and an aggregate cooking stove heating furnace, and the aggregate cooking stove is formed by assembling one or more baking stove single heating furnace stoves. According to the scheme of the utility model, various heating stove appliances in a kitchen are all concentrated together to form a whole intercommunicated assembly stove, all heaters are mutually universal, and heat energy generated during working of each heating stove in the assembly stove can flow orderly in the inner space of the assembly stove. When a certain single cooking stove does not work or works less, heat energy in the aggregate cooking stove flows into a hearth of the single cooking stove which does not work to form a hearth-passing fire flow, and the hearth-passing fire flow is used for assisting and supplementing processing and heating of the interior of the stove which does not work or the upper surface of the single cooking stove. Food can be directly processed and heated by the utensil for containing the food.

The utility model relates to the technical field of hearth flame monitoring, in particular to a hearth flame monitoring device which comprises a mounting plate, a bottom plate, a flame monitor and a supporting device, the mounting plate is fixedly mounted on the bottom plate, and the flame monitor penetrates through the mounting plate. The supporting device comprises a sliding seat, an adjusting block, a moving block, a locking rod, an initial positioning assembly and a sliding assembly, a sliding groove is formed in the bottom plate, the adjusting block is installed on the bottom plate in a sliding mode and located in the sliding groove, the sliding seat is fixedly installed on the adjusting block, a moving groove is further formed in the sliding seat, the moving block is installed on the sliding seat in a sliding mode, and the locking rod is fixedly installed on the moving block; the initial positioning assembly is arranged on the bottom plate, the sliding assembly is arranged on the bottom plate, and the sliding assembly drives the adjusting block and the sliding seat to move, so that the sliding seat can be adjusted to a proper supporting position according to the length of the flame monitor, the flame monitor can be conveniently locked by the locking rod, and the supporting and fixing effect on the flame monitor is improved.

Cooking appliance muffle (4) for a cooking appliance (2), comprising a cooking chamber (6) with a cooking chamber opening (8) that can be tightly closed by means of a door of the cooking appliance (2) and at least one cooking chamber wall (10) to delimit the cooking chamber (6), wherein the cooking appliance muffle (4) is designed to be suitable for explosion tests, where in one of the at least one oven chamber wall (10) a pressure equalization opening (12) is arranged for the discharge of an explosion pressure generated during an explosion test, wherein the pressure equalization opening (12) is tightly closed in a normal state of the cooking appliance muffle (4), in which the cooking chamber pressure in the cooking appliance muffle (4) is less than the explosion pressure, by means of a purely mechanical closing device (14) of the cooking appliance muffle (4), and wherein the closing device (14) is designed and arranged such that the closing device (14) automatically opens the pressure equalization opening (12) when the cooking chamber pressure is greater than or equal to the explosion pressure and automatically closes the pressure equalization opening (12) again after the cooking chamber pressure drops to a value below the explosion pressure, wherein the closing device (14) has a closing lid (16) attached to a remainder of the cooking appliance muffle (4) for closing the pressure equalization opening (12) in the normal state of the cooking appliance muffle (4), characterized by the fact that the locking device (14) has a stop (18) attached to the rest of the cooking appliance muffle (4), wherein the sealing lid (16) and the stop (18) are designed and arranged in such a way that the sealing lid (16) automatically closes the pressure equalization opening (12) again after the cooking chamber pressure has dropped to a value below the explosion pressure by means of a spring return force of the sealing lid (16), wherein the stop (18) is designed as an angle spanning the pressure equalization opening (12) and the closure cover (16) and clamped on both sides.

The invention discloses an anti-blocking gas protection kiln which comprises a kiln body, a hearth is formed in the kiln body, the kiln body is further provided with an air inlet communicating with the hearth, the air inlet is used for introducing normal airflow and intermittent pulse airflow into the hearth, and the air pressure of the pulse airflow is larger than that of the normal airflow; the gas uniformizing plate is inserted into the hearth and divides the hearth into a machining area and a gas inlet area, the machining area is used for containing a machining object, the gas inlet area is communicated with the gas inlet, gas uniformizing holes are formed in the gas uniformizing plate, and the gas inlet area is communicated with the machining area through the gas uniformizing holes. The pulse airflow is used for impacting and purging dust, ash or sediments attached to the air uniformizing holes, so that the problem of blockage of the air uniformizing holes is automatically relieved or even eliminated under the condition that the air holes do not need to be brushed, the stability and uniformity of atmosphere distribution in a hearth are maintained, and the machining quality and the product consistency are improved.

The utility model discloses a steam generator, which comprises a hearth and a plurality of heat exchange tubes arranged in the hearth, the plurality of heat exchange tubes are annularly distributed to form a heat exchange tube ring, and the steam generator is characterized in that the heat exchange tubes are vertically arranged, a gap is formed between every two adjacent heat exchange tubes, the bottom of each heat exchange tube is a water inlet, and the top of each heat exchange tube is a steam outlet; a heat insulation part is arranged in the middle of the inner side of the heat exchange pipe ring and divides the heat exchange pipe ring into a main heat exchange area and an overheat area. A main heat exchange area is arranged in the heat exchange pipe ring below the heat insulation part, and an overheat area is arranged in the heat exchange pipe ring above the heat insulation part; a combustor is arranged in the main heat exchange area. According to the utility model, the heat exchange effect is improved, the service life is prolonged, and the maintenance rate is reduced.

The present application belongs to the technical field of conveying mechanism auxiliary, and discloses a sagger deviation correction mechanism of roller furnace, which comprises a conveying mechanism and a group of saggars placed thereon. Through the cooperation of the correction assembly and other structures, when the sagger deviates, the second correction rod is folded and pushes the counterweight frame up through the connecting rod, and is higher than the other counterweight frame. The counterweight block slides to the first correction rod. Under the deviation state, the supporting force of the conveying roller on the sagger is uneven, the counterweight frame and the counterweight block increase the weight on one side of the sagger, the force applied to the folding of the first correction rod increases, the conveying roller drives the roller to rotate instead of directly contacting the correction rod, and four factors are added. The other side of the sagger is preferentially moved by the conveying roller rotation, and when the two correction rods are located on the same axis, the sagger can move normally. The position deviation during the sagger placement is solved, so that the sagger is stuck on the furnace wall or scratches appear between the sagger and the furnace wall, and the sintering condition is affected.

The present application relates to a kind of alkali recovery furnace water washing process, the process includes the following steps: step one: after alkali recovery furnace shutdown, open disc valve, plug valve and hearth furnace door, carry out hearth cooling;Step two: after cold furnace, washing water is pumped to alkali recovery furnace soot blower by feed water pump, by soot blower flushes the surface of heat exchange element, and the slagging and coking material therein is cleaned up completely;Washing waste water is recycled by dissolving tank and venting tank;Step three: after washing furnace, by hot air into air supply system, air draft system exhaust, dry hearth and heat exchange element;Step four: after drying furnace, in chute pouring castable, repair the part that is washed away by combustion melt and washing water, a kind of alkali recovery furnace water washing process designed by the present application can conveniently clean ash and remove coke with high efficiency, good effect, can effectively guarantee the cleanliness of heat exchange element, improve alkali recovery furnace operating efficiency.

The utility model discloses a biomass fuel combustion device for making burnt pepper, which comprises a fixed bottom plate, the fixed bottom plate is of a plate-shaped structure, a support frame body is arranged on one side of the top end of the fixed bottom plate, a feeding assembly is mounted at the top end of the support frame body, and the top end of the feeding assembly penetrates through a combustion hearth. A feeding hopper is arranged above the feeding assembly, the combustion hearth is arranged on the other side of the top end of the fixed bottom plate, and an air blowing assembly is arranged on one side of the combustion hearth. According to the biomass fuel combustion device for making the burnt peppers, the cross section of the whole fire grate body is of an inclined structure, when residues are collected subsequently, the residue collecting assembly only needs to be rotated at the position of the residue removing opening, and in the whole process, the residues are not prone to falling off. According to the slag removal device, the slag can be thoroughly removed without manually taking an external deflector rod to swing in the hearth in a large range by a worker, the operation is convenient, and the slag removal effect is better.

The utility model relates to the technical field of biomass particle heating furnaces, and discloses a turnover ash removal device based on a biomass particle heating furnace. The striker plate is fixedly connected to the upper surface of the horizontal section of the L-shaped rocker; the two supporting blocks are rotationally connected to the outer portion of the horizontal section of the L-shaped rocker, and the two supporting blocks are symmetrically distributed on the two sides of the material blocking plate. The rocker limiting mechanism is movably attached to the vertical section of the L-shaped rocker and is close to the surface of one side of the horizontal section; by means of the linkage design of the L-shaped rocker and the striker plate, the quick unlocking and locking functions of the rocker limiting mechanism are combined, and convenience and dustless dumping of ash are achieved; during operation, only the T-shaped pressing plate needs to be pressed and the L-shaped rocker needs to be rotated, so that the striker plate can be driven to turn over, ash is discharged from the bottom of the hearth at a time, and the problem of dust raising caused by repeated operation in the traditional ash digging process is solved.