9036 results about "Hot blast" patented technology

The invention provides a disinfection equipment production and processing quality control method and system based on intelligent analysis. Precise control of the drying process is achieved through three-stage collaborative optimization, firstly, hot air distribution parameters and historical energy consumption data of the drying process are integrated, a hot air uniformity and energy efficiency collaborative optimization model is constructed, and a dynamic target parameter system is established. Secondly, temperature field distribution data are collected in real time in the equipment operation process, multi-dimensional dynamic correlation analysis is conducted on the temperature field distribution data and energy consumption data of the heat supply device, heat field abnormal fluctuation and energy consumption correlation characteristics are recognized through a machine learning algorithm, and finally a heating power dynamic adjusting instruction is generated based on an analysis result; and by adopting the synergistic effect of a differential control algorithm and a frequency conversion regulation technology, process requirements are accurately converted into power supply frequency regulation and control signals, and millisecond-level dynamic response and self-adaptive regulation of the heating power are realized. According to the technical scheme provided by the invention, the production and processing quality control efficiency and accuracy of the disinfection equipment can be improved.

The invention provides an underground heat supply system based on an air energy heat pump as a heat source and a remote monitoring method, and the system comprises a heat source dynamic tuning subsystem which carries out the dynamic parameter optimization processing of environment temperature and energy storage state data, and obtains an air energy heat pump operation instruction; first characteristic adjustment of air energy heat pump output is formed through an air energy heat pump operation instruction, and matching of the temperature of an energy storage water tank and an environment heat source is achieved. The underground hot air accurate adjusting subsystem obtains underground real-time temperature data, the underground real-time temperature data is subjected to spatial thermal field calculation processing to obtain air volume demand parameters, and dynamic balance between the air supply intensity and the underground thermal environment is formed; and the multi-stage cooperative control center subsystem performs three-stage logic verification processing on the signals of the air energy heat pump operation instruction and the fan frequency instruction to obtain an equipment regulation and control instruction set. The underground intelligent heat supply system of the air energy heat pump, which has the environment self-adaption capability, the dynamic balance capability of a thermal field and the remote monitoring characteristic, is constructed.

The invention relates to the field of food drying, in particular to a multi-layer circulating food drying machine which adopts a stage treatment technology combining condensation dehumidification and adsorption dehumidification and utilizes a preheating mechanism to recover condensation waste heat. The drying device structurally comprises a plurality of layers of independently sealed drying areas, each area is provided with a bottom air inlet groove, a top exhaust groove and a bottom exhaust groove, and a hot air path is optimized through a flow guide plate; the condensation mechanism adopts a spiral runway-shaped condensation pipe and a cooling fin to realize primary dehumidification, and the adsorption mechanism alternately works through a rotatable fan-shaped adsorption area to maintain the adsorption efficiency; the preheating mechanism absorbs condensation heat dissipation to preheat external air and then supplements the external air to the circulating system. Through hot air cyclic utilization, multi-stage dehumidification and waste heat recovery, the drying efficiency is remarkably improved, the energy consumption is reduced, meanwhile, the adaptability to food with different water contents is enhanced, and uniform and rapid drying is achieved.

The invention discloses a spray drying device for boron carbide production, the spray drying device comprises a spray drying tower, a hot blast stove, a cyclone separator and a system controller, an atomizer and an online detection module are arranged in the spray drying tower, and the online detection module is used for monitoring temperature parameters in the spray drying process; comprising a first temperature sensor, a second temperature sensor and a temperature signal processing unit, the temperature signal processing unit adopts a multi-stage filtering and error compensation technology, noise and interference are effectively suppressed, and the accuracy of detection data is ensured. The air inlet temperature and the air outlet temperature are monitored in real time through the online detection module, the fuzzy-PID control algorithm is combined, the temperature control precision and the response speed are remarkably improved, and temperature fluctuation is reduced. The device dynamically adjusts the heating power of the hot blast stove according to real-time working conditions, the energy utilization efficiency is optimized, and the energy consumption is reduced.

A clothes drying device, including an air channel, an air path switching assembly, multiple clothes drying apparatuses, and multiple heating apparatuses. The air path switching assembly includes a first multi-position switching component and a second multi-position switching component. The first multi-position switching component and the second multi-position switching component are respectively provided between a hot air input section and intermediate heat source sections and between a hot air output section and the intermediate heat source sections; the first multi-position switching component and the second multi-position switching component have the same number of switching positions and are configured to work in conjunction to each other so that at least one clothes drying apparatus is selectively communicated with the corresponding hot air input section, the hot air output section, and the intermediate heat source sections so as to form a circulation loop.

The invention relates to the technical field of wafer test equipment, in particular to a heating aging test tool which comprises a storage rack and further comprises a wafer clamp placed on the storage rack. The detection assembly comprises a plurality of elastic probes located on one side of the storage rack and a heating disc; and the hot air guide assembly comprises a ventilation male head arranged on one side of the heating disc, an air guide pipe is arranged on the side, away from the ventilation male head, of the heat conduction cover, the air amount in the cavity is gradually decreased from near to far away from the air guide pipe, and the air flow speed is gradually decreased. A hot air flow guide assembly is arranged on a conveying frame, heat of a heating disc is guided to the position above a wafer through airflow through a heat conduction cover, the space above the wafer is divided into a plurality of cavities, the space size and the space shape of each cavity are set, the air flow speed and the contained hot air amount of each space are adjusted, and therefore the heat conduction efficiency of the wafer is improved. The influence of heat loss in the air flow process is reduced, so that the heating effects of all parts of the wafer are similar, and the detection effect is improved.

According to the drying module, the drying water tank and the integrated cabinet, when a draught fan and a heating piece in an air inlet channel work, air in the inner space of the cabinet can be sucked through an air inlet of the air inlet channel to be heated and conveyed to a drying air channel outside the tank to heat and dry the water tank, and the water tank is heated and dried while the warm and dry environment of the water tank is guaranteed; through the hot air return channel, hot air passing through the out-of-groove drying air channel is exhausted to the inner space of the cabinet from the air outlet channel, so that air internal circulation of the inner space of the cabinet is achieved, the inner space of the cabinet is dried, the warm and dry environment of the inner space of the cabinet is kept, user experience is improved, and the user experience is improved. Moreover, air in the internal space of the cupboard is heated and dried and then is conveyed to the drying air duct outside the tank through the air inlet channel to dry the water tank, so that the drying temperature is increased, and the time required for heating and drying the water tank is shortened.

The utility model relates to the technical field of drip irrigation tape production, in particular to plastic particle drying equipment which is characterized in that the lower end of a storage box is connected with a star-shaped discharge valve, the input end of a material uniformizing groove is positioned right below a discharge pipe, the output end of the material uniformizing groove is positioned right above the input end of a conveying belt, a hot air discharge pipe is fixedly connected above the conveying belt, and the hot air discharge pipe is fixedly connected with the conveying belt. The output end of the hot air generator is connected with the hot air discharging pipe through an air inlet pipe, and an air collecting hood is fixedly connected to the upper portion in the drying box. The star-shaped discharging valve is arranged at the lower end of the material storage box, so that the discharging amount in unit time can be controlled, materials can uniformly fall on the conveying belt by arranging the material uniformizing groove and the vibration motor, and the problem that a large number of plastic particles are accumulated is solved; the gas collecting hood is arranged in the drying box and communicated with the treatment box, the odor removing layer is arranged in the treatment box, peculiar smells generated in the plastic particle drying process can be removed, and pollution to the surrounding environment is avoided.

The utility model discloses a cleaning base station which at least comprises a base station body, a heating module and a fan component, the heating module and the fan component are installed on the base station body, the base station body is provided with a rolling brush cleaning tank and a drying air channel communicating with the rolling brush cleaning tank, and the drying air channel extends in the front-back direction and is provided with two side walls; the heating module is arranged in the drying air channel and comprises a hot water module used for heating liquid, a hot air module used for heating gas and a heating element used for heating the hot water module and the hot air module. The hot water module is provided with a hot water flow channel which is located in the drying air channel and is parallel to or perpendicular to the extending direction of the drying air channel. According to the technical scheme provided by the invention, the heating module of the cleaning base station has a composite heating function and does not occupy extra space of the base station.

This application relates to the technical field of firing ceramsite, and specifically discloses a coal gangue-based water-retaining ceramsite, its preparation method and application. The preparation method of the coal gangue-based ceramsite disclosed in this application is as follows: Drying: The green balls of ceramsite are fed into the drying section, and the hot air from the decarbonization section is cooled and then sent to the drying section to dry the green balls; The green balls of ceramsite are prepared by uniformly mixing coal gangue raw materials and modified silica sol and then calcined. Pyrolysis: The hot air generated from the decarbonization section is heated to 350-400 °C and then introduced into the pyrolysis section to pyrolyze the green balls. Decarbonization: The hot air from the pyrolysis section and the cooling section heats and supports combustion of the material layer in the decarbonization section to complete the decarbonization of the ceramsite. Cooling: The decarbonized ceramsite is cooled by blowing air. Using the technical solution of this application, the processing scale of coal gangue ceramsite can be increased, the energy utilization of coal gangue itself can be maximized, the production cost can be effectively reduced, and the ceramsite can meet the requirements of decarbonization, water retention and strength.

The invention relates to the technical field of cleaning equipment, and particularly discloses a steam cleaning machine. The cleaning machine comprises a cleaning machine body, a steam generation system, a cleaning agent conveying device, a waste water suction device, a hot air device and a control device are arranged in the cleaning machine body, the cleaning machine body is connected with a multifunctional integrated spray head through a multi-channel connector and a multi-channel connecting pipe, and the multifunctional integrated spray head is of a multi-layer hierarchical structure. The steam nozzle, the cleaning agent nozzle and the spherical suction head are sequentially arranged from inside to outside; during use, steam and a cleaning agent cooperatively soften and decompose dirt, the wastewater suction device sucks sewage through a spherical suction head of the spray head, the hot air device blows out hot air for drying, and all the systems are controlled by the control device. The cleaning device integrates the functions of steam cleaning, cleaning agent assisting, waste water sucking and hot air drying, achieves closed-loop cleaning, is convenient to operate and high in efficiency, and meets the cleaning requirements of floors, furniture, tabletops, household appliance gaps and the like in families, hotels and other scenes.

The utility model discloses a perforated flow guide air plate for wet spunlace drying, which comprises an upper-layer flow guide air plate and a lower-layer flow guide air plate, the upper-layer flow guide air plate and the lower-layer flow guide air plate are both mounted in a drying oven, the upper-layer flow guide air plate is mounted at the upper part of the drying oven, and the lower-layer flow guide air plate is mounted at the lower part of the drying oven. And the lower-layer flow guide air plate is mounted at the lower part of the drying oven. Due to the unique penetrating type design, hot air can directly act on the surfaces of materials, the drying time is greatly shortened, and meanwhile energy consumption is reduced.

The invention belongs to the technical field of board baking, and particularly relates to a board baking device for circuit board production, which comprises a hot air circulation box, the hot air circulation box is connected with a bearing frame through a box top table, a filter assembly is arranged at the top of the bearing frame, a loading plate is longitudinally and slidably arranged in the bearing frame, a fan assembly is arranged on the loading plate, and a heating assembly is arranged at the bottom of the bearing frame. And a box door is mounted on the hot air circulation box. The air cylinder drives the carrying plate and the fan assembly to move downwards synchronously, in the downward moving process of the carrying plate, the carrying plate drives the push plate to move synchronously through the T-shaped plate, the push plate drives the baffle to slide from the airflow cavity to the heat flow cavity through the connecting rod and the sliding rod, airflow passing through the heat flow cavity is reduced, and the airflow is promoted to enter the hot air circulation box through the airflow cavity; and under the condition of ensuring the airflow intensity, the airflow temperature is reduced, the influence of hot air on lead-free soldering tin on the circuit board is reduced, and the phenomenon of poor contact between the circuit board and a component is avoided.

The utility model provides a rotary hot-blast stove with an adjustable air outlet angle, which relates to the technical field of rotary hot-blast stoves and comprises a hot-blast stove body, an adjusting mechanism is arranged at the top of the hot-blast stove body and comprises a fixing pipe, a sleeve block is sleeved on the outer surface of the fixing pipe and is fixedly connected with the fixing pipe, and the air outlet angle of the hot-blast stove is adjustable. A rotating pipe is connected into the sleeve block in a sleeved mode, the rotating pipe is rotationally connected with the sleeve block, and a ratchet wheel is arranged in the sleeve block. According to the hot-blast stove, by arranging the adjusting mechanism, the blowing angle of the hot-blast stove can be adjusted, so that the blowing angle cannot be blocked by part of objects in actual use, it is guaranteed that hot air can be conveyed to the maximum extent, meanwhile, the air outlet angle of the rotating pipe can be adjusted, and the installation limitation of the hot-blast stove is smaller; and the ratchet wheel and the pawl are arranged, and the pawl can limit the ratchet wheel under the action of the first spring.

The invention relates to the technical field of wafer processing, one embodiment of the invention provides a multi-specification wafer spin-drying device which comprises an equipment body and a centrifugal mechanism, a spin-drying cavity is formed in the equipment body, the centrifugal mechanism is arranged in the spin-drying cavity, a cylinder cover used for opening and closing the spin-drying cavity is installed on the equipment body, and the centrifugal mechanism is arranged in the spin-drying cavity. The device further comprises a liquid falling plate, a sliding plate, a heating assembly, a hot air mechanism and a drainage mechanism, the liquid falling plate is fixedly connected to the interior of the spin-drying cavity, the sliding plate is fixedly connected to the interior of the spin-drying cavity, the heating assembly is used for heating the interior of the spin-drying cavity, and the hot air mechanism is used for being matched with the heating assembly to blow hot air into the spin-drying cavity. And the drainage mechanism is used for discharging the cleaning agent sliding down along the sliding plate in time. By means of the technical scheme, the technical problem that in the prior art, a cavity in a spin-drying device is in a wet high-pressure environment under the action of hot air and a thrown-out cleaning agent, and spin-drying of wafers is not convenient is solved.

The invention relates to the technical field of fired ceramsite, and particularly discloses high-strength ceramsite prepared from coal gangue as well as a preparation method and application of the high-strength ceramsite. The invention discloses a preparation method for preparing ceramic particles from coal gangue. The preparation method comprises the following steps: drying; performing pyrolysis; decarburization: carrying out heating combustion-supporting on a material layer from top to bottom by hot air with the temperature of 450-600 DEG C from the pyrolysis section and the cooling section in the decarburization section, and completing decarburization of the ceramsite from top to bottom; hot air from the cooling section is subjected to heat compensation and temperature rise to heat ceramsite, the temperature of a ceramsite material layer is 1000-1140 DEG C, and the ceramsite material layer is subjected to heating combustion supporting from top to bottom; and cooling: cooling the roasted ceramsite to 80-100 DEG C. By means of the technical scheme, the treatment scale of the coal gangue ceramsite can be increased, the production cost is effectively reduced, and the ceramsite meets the requirements for decarburization, low water absorption and high strength.

The invention relates to the technical field of intelligent cigarette manufacturing, and discloses a cigarette making machine parameter setting prediction system based on an incoming material state. The system comprises an incoming material feature acquisition module, a process adaptation analysis module, a parameter mapping calculation module, an abnormal working condition identification module and a prediction parameter generation module which are connected in sequence. The system obtains a tobacco shred moisture content distribution curve and temperature field data in real time, and generates an incoming material state characteristic sequence in combination with the conveying speed; dividing water content fluctuation sections and associating temperature distribution rules according to the water content fluctuation sections, and generating a process adaptive partition map; establishing a time sequence mapping relation between the roller rotating speed and the hot air temperature, and generating a parameter optimization mapping table through stability comparison; and finally outputting a parameter prediction scheme by identifying the abnormal working condition deviating from the standard relationship and combining the matching of historical data and the current incoming material state. According to the system, refined parameter prediction of non-uniform supplied materials can be realized, equipment operation parameters are dynamically optimized, and the stability of cigarette production and the consistency of product quality are improved.

The invention discloses a surrounding furnace tea cooking device which can utilize a first heating body to radiate heat outwards to cook tea or cook a hot pot or bake food and the like, and can also utilize a hot air assembly to heat and utilize an atomization humidification assembly to humidify and reduce dryness. The air blower can accelerate flowing of air in the water tank, the pressure intensity in the water tank is increased, mist is blown out in the circumferential direction, the temperature of air on the circumferential side is increased, mist outlet is even, the coverage range is large, all users sitting on the periphery of the surrounding furnace table can be covered, and meanwhile flowing of air in the heat dissipation cavity can be accelerated through the air blower, and heat dissipation is conducted on the heating furnace assembly. No extra heat dissipation structure is needed, and the practicability is improved.

The invention relates to the field of flow-state solidified soil, and discloses flow-state solidified soil prepared from construction waste, preparation equipment and a preparation method. The pre-dehydration module is used for controlling the water content of discharged materials to be less than or equal to 14%; the system further comprises a main drying system, an auxiliary material adding device, a water adding device and mixing equipment. The main drying system comprises a high-temperature drying area, a high-temperature buffering area and a heat preservation discharging area which are arranged in the vertical direction, materials treated by the pre-dehydration module are lifted into the high-temperature drying area through lifting equipment, the main drying system comprises at least two sets of material conveying belts, and a plurality of hot air openings are evenly formed in the top of the high-temperature drying area; an inlet of the hot air pipe is communicated with an air cavity heated by a heat source; a recovery channel communicating with the portion, close to the bottom, of the heat preservation discharging area is arranged on one side of the main drying system, and an obliquely-arranged dust baffle is arranged in the recovery channel. According to the invention, the problems of fluctuation of construction waste sources and large change of material moisture content in the prior art are solved.

The invention discloses a horizontal sludge dryer which comprises a rack, a first drying cylinder is arranged on the rack in an obliquely downward mode through a supporting piece, a sludge feeding mechanism is arranged in the upper end of the first drying cylinder, and a cyclone conveying mechanism in the first drying cylinder is connected with the air outlet end provided with a screw air compressor through a connecting pipe. A crushing mechanism is arranged at the discharging end of the sludge feeding mechanism, a second drying cylinder is movably connected to the discharging end of the first drying cylinder, a roundabout conveying mechanism is arranged in the second drying cylinder, a hot air inlet pipe is arranged in the lowest end of the second drying cylinder, and a discharging control mechanism is arranged in the lower end of the second drying cylinder. An air outlet is formed in the lower end of the first drying cylinder and connected with a sludge feeding mechanism through an air return pipe, and a first rotation driving mechanism is arranged on the rack. The sludge drying device is simple in structure, sludge can be effectively crushed, heat and mass transfer is enhanced, the drying path is prolonged, and waste heat can be effectively recycled.

The invention discloses a hot air blowing device for a porcelain bushing, and relates to the technical field of electric precipitators, the hot air blowing device comprises an inner top, a heat preservation box with a heat preservation cavity, a suspender, an insulating porcelain bushing and a porcelain bushing cover plate, the heat preservation box is fixed above the inner top, the insulating porcelain bushing is arranged in the heat preservation cavity and fixed above the inner top, and the porcelain bushing cover plate is installed at the top end of the insulating porcelain bushing; the upper end of the hanging rod is connected with a porcelain bushing cover plate, the porcelain bushing cover plate is provided with a plurality of communicating holes used for guiding hot air in the heat preservation cavity into the insulating porcelain bushing, the heat preservation box is provided with an air inlet, the porcelain bushing cover plate is provided with a blowing assembly, and the blowing assembly comprises a plurality of air guide blades and an adjusting assembly used for adjusting the inclination direction of the air guide blades. The air guide blades correspond to the communicating holes and are used for guiding hot air guided in by the communicating holes to the surface of the inner wall of the insulating porcelain sleeve. According to the scheme, the hot air blowing path can be changed by adjusting the angles of the air guide blades, local dust accumulation is avoided, it is guaranteed that the inner wall is evenly cleaned, the cleaning effect is improved, and the equipment operation period is prolonged.

The invention discloses a heat treatment process of a gear, which relates to the technical field of automobile gear heat treatment, and comprises the following steps: S1, blanking, S2, forging, S3, normalizing: preheating the gear in a preheating furnace by adopting a heating mode of combining infrared radiation and hot air circulation, S4, rough machining, S5, carburizing and quenching: carburizing and quenching, s6, induction heat quenching: performing induction heat quenching on an induction coil; S7, nitriding treatment; S8, low-temperature tempering; S9, finish machining; normalizing is combined with infrared radiation, hot air circulation preheating and induction heating, the effects of reducing energy consumption and machining cost and improving production efficiency are achieved, the forging force is reduced through isothermal forging, the energy consumption of equipment is greatly reduced, pulse type vacuum carburizing, high-pressure gas quenching and induction heat quenching are adopted to introduce a self-adaptive induction heating technology, and the energy consumption of equipment is greatly reduced. And a plasma nitriding technology and a composite nitriding technology are adopted, so that the surface hardness, wear resistance and fatigue strength are improved.

The utility model discloses a drying tunnel curing system for composite paper, which is used for jet drying of the composite paper in a drying tunnel and comprises at least four drying ovens sequentially connected along a production line, and all the drying ovens form the drying tunnel for jet drying of the composite paper. An air inlet and an air outlet are respectively formed in two sides of the upper part of each drying oven; a plurality of nozzles for jetting and impacting hot air on the composite paper coating are uniformly arranged in the upper space of the drying oven between the air inlet and the air outlet; an air outlet is further formed in the lower space of the drying oven; a fan, a heating box and a heat exchanger are arranged beside each drying oven, an air outlet of each drying oven returns air to the heating box through an air return pipe, the fan is connected to one side of the heating box, and the output end of the fan is communicated with the air inlet of the drying oven through an air inlet pipe; the other side of the heating box communicates with a heat exchanger through a pipeline, and the heat exchanger is connected with a fresh air inlet pipe, a first air exhaust connecting pipe communicating with an air exhaust opening of the drying box and a second air exhaust connecting pipe for sending out air in the first air exhaust connecting pipe.

The air blowing head of the air heater comprises an air head part, the air head part is provided with a heating groove, the cross section of the heating groove is non-circular, an air channel is formed in the air head part, and air outlet holes are distributed in the inner wall of the heating groove and used for guiding hot air in the air channel into the heating groove and heating a workpiece. A feeding hole is formed in one side of the air head part, the feeding hole is communicated with the heating groove and is used for introducing a to-be-heated workpiece into the heating groove, the width of the feeding hole is smaller than that of the heating groove, and the air outlet hole close to one side of the feeding hole is configured to face the inner side of the heating groove. Through the arrangement of the non-circular heating grooves and the optimized air outlet holes, hot air escape is effectively reduced, the heating efficiency and uniformity are improved, meanwhile, it is ensured that workpieces are rapidly preheated, and heat loss is reduced.

The invention belongs to the technical field of air source heat pumps, and particularly relates to a defrosting device for an air source heat pump unit, which comprises a heat pump unit body, a movable seat is arranged on one side of the heat pump unit body, and two movable rollers are rotatably connected below the movable seat; and the defrosting mechanism is used for increasing the air speed of hot air in the defrosting process and enabling the hot air to impact the surfaces of the fins in the inclined direction, the defrosting mechanism comprises a fixed guide rail fixedly connected to the upper portion of the movable base, and a sliding block is slidably connected into the fixed guide rail in the vertical direction. By arranging the defrosting mechanism, in the defrosting process, hot air in the rotating process can be obliquely sprayed out from the ventilation holes and impacts on the surfaces of the fins, the obliquely sprayed hot air can increase the force impacting on the surfaces of the fins under the action of centrifugal force, meanwhile, the oblique hot air can achieve the effect similar to'shoveling ', and the defrosting efficiency is improved.

The invention relates to the technical field of automobile parts, in particular to an automobile rubber sealing part and a preparation method thereof. A metal framework base material is stamped in a numerical control mode, and a framework blank is obtained by controlling deviation through a positioning pin; after being slightly roughened, the blank is phosphatized, coated with a special rubber prime coat adhesive and subjected to infrared drying; weighing the raw materials according to the ratio, feeding into an internal mixer by stages, and mixing at controlled temperature and speed to obtain a rubber compound; feeding the mixed rubber into a double-roller open mill to press a continuous rubber sheet in a step-by-step distance-adjusting manner; performing hydraulic cutting by a special cutting die to obtain a slightly large formed rubber sheet; sticking the molded film to the framework into a mold with a positioning boss, exhausting, boosting and vulcanizing to obtain a semi-finished product; feeding the semi-finished product into a hot air oven and introducing nitrogen for secondary vulcanization; and carrying out laser thickness measurement and visual inspection, packaging qualified products in an anti-static manner, and sealing in a corrugated carton. The framework precision and the rubber bonding strength are improved, and degumming is avoided; stable rubber material performance and uniform rubber sheet thickness are guaranteed, and material shortage is reduced; vulcanization displacement and bubbles are prevented, rubber oxidation and aging are inhibited, and the durability and stability of the product are improved.

The utility model relates to the technical field of air conditioners, in particular to an air conditioner shell and an air conditioner, the air conditioner shell is provided with an air inlet, an air outlet and an air duct, the air duct communicates with the air inlet and the air outlet, the air outlet is located at the upper end of the air conditioner shell, the air inlet is located at the lower end of the air conditioner shell, and the air conditioner shell comprises a shell body and a front panel; the front panel is arranged at the front end of the shell body, the front panel is located below the air outlet, the front side face of the front panel extends in the direction from top to bottom and is obliquely arranged backwards, and according to the air conditioner shell, hot air flow can fall on the ground, and the flowing distance of the hot air flow on the ground is long.

The invention relates to the technical field of electric heater preheating, in particular to an electric heater preheating system and method. Wherein the electric heater comprises a shell, an electric heating tube and a junction box; the preheating device comprises a hot air module, a control module, a pressure sensor, a temperature and humidity sensor and a switch valve. The hot air module comprises a draught fan, a heating piece and a connecting air pipe, and the connecting air pipe is connected with the first pipe opening so that hot air generated by the hot air module can be input into the shell through the first pipe opening. The second pipe orifice is used for discharging air, the pressure sensor and the temperature and humidity sensor are arranged at the second pipe orifice to detect a pressure value, a temperature value and a humidity value, and the switch valve is arranged at the second pipe orifice to adjust the opening and closing and / or the opening degree of the second pipe orifice. When the electric heater is in a shutdown state, the external preheating device is connected with the electric heater to form a preheating system, energy of a molten salt system does not need to be depended on, non-internal circulation air is utilized, and preheating and moisture removal of the electric heater are achieved.

The utility model discloses an efficient waste heat utilization system for a sintering circular cooler. Waste gas outlets of the section I and the section II of the circular cooler are communicated with a waste gas inlet of the waste heat boiler; a waste gas outlet of the waste heat boiler is communicated with an air inlet of the first circulating fan and an I-section air bellow and an II-section air bellow of the circular cooler; air inlets of the first cooling fan and the second cooling fan are communicated with the environment; an air outlet of the first cooling fan is sequentially communicated with waste gas outlets of a V-section air bellow and a III-section air bellow of the circular cooler; an air outlet of the second cooling fan is sequentially communicated with the IV-section air box of the circular cooler, the second circulating fan and the IV-section air box of the circular cooler; and a waste gas outlet of the III-section air bellow of the circular cooler is communicated with a hot air cover of the sintering machine.

The present invention discloses a gas infrared radiation and hot air dual-mode drying furnace for drying printing inks, which comprises a furnace body housing. Inside the furnace body housing, there are a heating chamber and two machine position chambers. The two machine position chambers are symmetrically distributed at the top and bottom of the heating chamber. An inlet and an outlet penetrating through the furnace body housing are respectively arranged on both sides of the middle of the heating chamber. The present invention heats printing paper through two modes of gas infrared radiation and hot air. Due to the physical properties that infrared rays can penetrate and objects can actively absorb the heat of infrared rays, the ink and the interior of the paper can be quickly heated. In the later stage, the high-temperature flue gas waste gas generated by the front-end gas infrared radiation burner is used, and is guided to the air knife for drying through the hot air circulation mode by a blower and a forced air blower. The gas consumption of the burner is lower, and the heating speed is faster, further reducing the gas energy consumption. Under the condition of the same gas consumption, the speed of the printing press is significantly increased, meeting the requirement of lower gas energy consumption of existing conventional gas burners.