314results about How to "Improve roast quality" patented technology

The invention relates to an air conditioning controller special for curing tobacco and a control method thereof. The special air conditioning controller for curing tobacco comprises a wire controller; the wire controller comprises an input unit and an MCU of the wire controller, which are connected; the MCU of the wire controller is respectively connected with a first display unit, a cured tobacco curve, a tobacco-curing recording memory unit, a spare power supply unit, a dry-bulb temperature and wet-bulb temperature detection unit, a load control interface unit, a heat pump system protective unit and a three-phase power fault tolerant unit; and the MCU of the wire controller receives a control instruction from the input unit so as to control the working states of a heat pump and an electric heating and dehumidifying device. The air conditioning controller utilizes the heat pump heating technology and a heat recovery device in the process of curing tobacco, can reduce the air pollution and save energy, can also improve the curing quality of the tobacco and reduce the working intensity of curing tobacco, control the dry-bulb temperature and the wet-bulb temperature in a curing room precisely and greatly improve the automation degree and the control precision.

The invention provides an automatic baking monitoring system and method which are used for monitoring a food baking process in an oven. The system mainly comprises a central control computer and an acquisition control subsystem which is in data communication with the central control computer, wherein the acquisition control subsystem comprises a baking heater, ventilation adjustment equipment, a humidity and temperature sensor, a proportion integration differentiation (PID) controller and an electronic nose. By using the automatic baking monitoring system and the automatic baking monitoring method, actual temperature, actual humidity and actual gas components in the food baking process in the oven can be automatically acquired in real time through circulating judgment and control; a baking stage of foods can be accurately judged in real time according to the actual gas components in the oven; the temperature and the humidity in the oven are correspondingly adjusted to be equal to a baking temperature set value and a baking humidity set value which correspond to the baking stage of the foods; adaptive adjustment monitoring of the food baking process is realized; and the accuracy and the baking quality of a baking process are improved.

The invention discloses a high-temperature walking beam furnace beam and column insulation lining slag-adhesion-preventing coating. The coating comprises the raw materials of, by weight: 55-60% of the bauxite clinker, 5-10% of magnesium aluminate spinel, 5-10% of calcined anthracite, 2-5% of flake graphite, 3-6% of silicon carbide, 4-6 % of alpha-Al2O3 powder, 4-6% silica micro-powder, 5-7% of calcium aluminate cement, 0.5-1.5% of metal silicon powder, 2.5-3.5% of water-soluble epoxy resin and water-soluble curing agent, 0.05-0.10% of explosion-proof fiber, 0.1-0.15% of sodium hexametaphosphate, 0.05-0.10% of an organic reducing agent, and 0. 04-0.07% of an organic silane coupling agent. With the slag-adhesion-preventing coating, the comprehensive targets are achieved, that service lives of the furnace beam and the column insulation lining are prolonged, furnace energy consumption and insulation lining surface slag adhesion amount are reduced, furnace maintenance cost is reduced, and high-temperature-oriented silicon steel production efficiency is improved.

The invention relates to an intensive curing barn baking process for airflow alternate-operation flue-cured tobacco, belonging to the technical field of flue-cured tobacco preparation process. The intensive curing barn baking process for airflow alternate-operation flue-cured tobacco is the improvement on the existing intensive curing barn baking process. The improvement point is characterized inthat interval time for the alternate operation of airflow rise and airflow descending is as follows: in the low-temperature humidifying and yellowing stage: two airflow operation modes are provided, the time interval is 0.50 hour, and alternation is carried out once; in the stable-temperature dehumidifying and withering stage: two airflow operation modes are provided, the time interval is 0.50 hour, and alternation is carried out once; in the ventilating, dewatering and leaf-drying stage: two airflow operation modes are provided, the time interval is 0.75 hour, and alternation is carried out once; and in the temperature and moisture controlling and tendon drying stage: two airflow operation modes are provided, the time interval is 1.00 hour, and alternation is carried out once. Other baking operation technologies of the process are same with the conventional baking process. The intensive curing barn baking process can obviously improve the baking property of the tobacco loading chamber of the intensive curing barn, improve tobacco leaf baking quality, and improve the safety for baking the tobacco leaf. The intensive curing barn baking process is suitable for intensive baking underdifferent ecological environment conditions in the tobacco area in China.

The invention discloses a high-efficiency and energy-saving intensive tobacco flue-curing house, which comprises a heat supply chamber, a baking chamber, a hot air circulating system and an absorption type heat pump system, wherein the hot air circulating system is connected with the heat supply chamber, the baking chamber and the absorption type heat pump system sequentially by a pipeline; and the absorption type heat pump system is arranged on the top of the baking chamber. According to the high-efficiency and energy-saving intensive tobacco flue-curing house, the heat exchange efficiency and energy utilization rate are improved by utilizing a technology of performing heat exchange by a rotary air heat exchanger, a technology of preheating air required by the combustion of a hearth by recovered smoke waste heat, a technology that the recycled smoke waste heat is used as a heat source of the absorption type heat pump system and the like; a baking effect of the tobacco flue-curing house is improved by utilizing technologies of supplying air from two sides of a side wall air distribution board and exhausting the air from the center of a central air draft pipe; and a humidity-discharging effect and an energy-saving effect are improved by utilizing a technology of performing deep dehumidification and recovering humidity-discharging waste heat by the heat pump system. Therefore, the high-efficiency and energy-saving intensive tobacco flue-curing house has the characteristics of high heat exchange efficiency, high energy utilization rate, good baking effect and good humidity-discharging effect, is particularly suitable for low-cost and large-scale production, and can be widely applied to the technical field of tobacco flue-curing.

The invention discloses a roasting furnace, and particularly relates to a secondary roasting furnace for carbon products. The secondary roasting furnace is structurally characterized in that two rows of furnace chambers are symmetrically arranged on two sides of a furnace central line in a furnace body, each row of furnace chambers consists of a plurality of single chamber bodies, each single furnace chamber body is divided into n-1 material tanks by n flame paths, each material tank comprises flame path walls on two sides, transverse walls at two ends and a material tank bottom, a light heat-insulation furnace cover for sealing is arranged on the top of each material tank, volatile matter balancing channels are arranged on upper portions of the flame path walls, volatile matter flowing channels are arranged on upper portions of the transverse walls, ends of the two rows of furnace chambers are connected by communicating flame paths, volatile matter flowing control gate discs are inserted into the volatile matter flowing channels from tops of the transverse walls, smoke vents are disposed on upper surfaces of the transverse walls and communicated with smoke discharge devices, the smoke discharge devices are communicated with a main smoke flue, and flame path gate discs are arranged among the flame path walls of the adjacent single furnace chamber bodies. Asphalt volatile matters generated during roasting are guided to the high-temperature flame paths to be completed burned, and environmental pollution due to the fact that asphalt smoke is discharged into the atmosphere is thoroughly eliminated.

The invention discloses a method for roasting high-temperature drought premature tobacco leaves. The method mainly includes the step of the early stage of yellowing, the step of the middle stage of yellowing, the steps o f the later stage of yellowing, the step of the early stage of color fixing, the step of the later stage of color fixing, and the step of the stem drying stage. According to the method, roasting losses of the high-temperature drought premature tobacco leaves are reduced by adjusting the roasting technological parameters, and the roasting quality of the tobacco leaves is remarkably improved. The proportion of the better-than-average tobacco leaves is obviously increased, the proportion of the variegated tobacco leaves is decreased, and the proportion of the tobacco leaves which are slightly greenish in the middle upper portions is greatly decreased.

The invention discloses a flue-curing method for fresh tobacco leaves. The flue-curing method includes steps of weaving and binding the fresh tobacco leaves, hanging the fresh tobacco leaves in tobacco flue-curing chambers and carrying out flue-curing on the fresh tobacco leaves. The flue-curing method is characterized in that the fresh tobacco leaves are woven and bound by two rod racks, binding wires are arranged on the rod racks, butted side surfaces arranged on the two rod racks are butted to one another, and a plurality of spaced tobacco leaf mounting spaces are formed on the two rod racks, so that the ends of the fresh tobacco leaves can be bound into the tobacco leaf mounting spaces by the binding wires, the fresh tobacco leaves are in suspension states, contact between the tobacco leaves and the rod racks can be reduced during flue-curing, and the flue-curing uniformity can be improved. The flue-curing method has the advantages that the flue-curing method can be implemented easily, conveniently and quickly and is favorable for improving the flue-curing quality of tobacco leaves, the fresh tobacco leaves can be quickly woven and bound, and the like.

The invention discloses a method for detecting and judging the tobacco leaf yellowing degree and the baking progress in a tobacco baking and yellowing stage. The method comprises the following steps of placing representative tobacco leaves into a sampling window when the tobacco leaves are baked and packaged; measuring color indexes of 10 representative tobacco leaves extracted from the sampling window through a colorimeter in need of judging the yellowing degree of the tobacco leaves in the tobacco leaf yellowing stage, measuring the chlorophyll content, the carotenoid content and a ratio of the chlorophyll content to the carotenoid content at the same time, and taking average values. According to the method disclosed by the invention, the problem that definite indexes and a measuring method for the tobacco leaf yellowing degree and the baking progress of the tobacco baking and yellowing stage are always deficient is solved. According to the method, the indexes are definite; objective judgment indexes are obtained; the baking progress can be quantized; the error caused by vision is alleviated. Tobaccos are monitored by the method, and the colors of the baked tobacco leaves are uniform and consistent; the comprehensive quality is improved; the tobacco leaf baking quality can be improved. The method is suitable for tobacco enterprises.

The invention relates to the technical field of tobacco curing equipment, in particular to a liquefied petroleum gas tobacco curing house. The liquefied petroleum gas tobacco curing house comprises a hot air chamber provided with a heating device, and a tobacco curing chamber provided with a tobacco hanging rack, a circulation flue is formed between the tobacco curing chamber and the hot air chamber through an air inlet and an air return opening, and the heating device is connected with a heat exchange pipe. A first draught fan is arranged at the part, close to the air inlet, of the lower portion of the hot air chamber, and a second draught fan blowing upwards is arranged on the part, opposite to the first draught fan, of the lower portion of the tobacco curing chamber. The tobacco hanging rack comprises vertical rods arranged vertically and transverse rods arranged transversely, and a plurality of clamping parts used for being connected with the transverse rods in a clamping mode are arranged on the vertical rods. The novel tobacco curing house further comprises motors arranged on the lower portions of the vertical rods respectively and transmission rods connected with the motors, and the upper portions of the transmission rods are connected with the bottoms of the vertical rods. The heating device is a liquefied petroleum gas fuel heating device. Liquefied petroleum gas serves as fuel of the liquefied petroleum gas fuel heating device, environmental friendliness and cleanness are achieved, and the liquefied petroleum gas tobacco curing house has the advantages of being clean, sanitary, safe, cheap, high in heating efficiency, convenient to use and the like.

The invention belongs to the technical field of tobacco leaf flue-curing, and discloses an intelligent dual-power tobacco flue-curing barn which comprises a tobacco flue-curing chamber, a heating chamber, a heat pump unit, a biomass fuel furnace, a field control instrument, an infrared spectrum analyzer, a temperature and humidity detection system and data transmission equipment. The heating chamber is adjacent to the tobacco flue-curing chamber, an air inlet and a return air inlet are formed in the upper portion and the lower portion of a heat-insulation wall, a circulating fan is arranged inthe heating chamber and directly faces the air inlet, a heat pump evaporator of the heat pump unit is arranged on the lower portion of the heating chamber and directly faces the return air inlet, a heat pump condenser of the heat pump unit is arranged on the upper portion of the heat pump evaporator, the biomass fuel furnace is arranged in the heating chamber and is positioned on a side of the heat pump unit, the infrared spectrum analyzer is arranged in the tobacco flue-curing chamber, probes of the infrared spectrum analyzer directly face tobacco leaves, probes of the temperature and humidity detection system are arranged in the tobacco flue-curing chamber, the data transmission equipment is arranged in the heating chamber, and the infrared spectrum analyzer, the temperature and humidity detection system, the data transmission equipment, the circulating fan and the heat pump unit are electrically connected with the field control instrument. The intelligent dual-power tobacco flue-curing barn has the advantages of simple structure, energy conservation, consumption reduction, intelligent regulation and control, quality improvement and aroma enhancement.

The invention provides a baking technology effectively avoiding the phenomenon that dust is hung on tobacco leaves at the upper portion. A tobacco stem tobacco weaving mode is adopted, and according to the tobacco leaf change state in the baking process, the baking process is divided into 9 stages: the stage when leaves become 70-80% yellow and leaf tips and leaf edges become soft, the stage whenthe leaves become 90% yellow and the tobacco leaves at the middle temperature layer start to hook the tips and curl the edges, the stage when yellow leaves have green tendons and the tobacco leaves atthe middle temperature layer reach small dug cylinders, the stage when branch veins of the tobacco leaves are totally yellow and the leaves at the middle temperature layer are 2/3 dried, the stage when the yellow leaves have yellow tendons and the leaves are totally dried, the stage when the tobacco tendons state to be dried, the stage when bases of the tobacco tendons become brown and tobacco tendons are shrunk and become brown, the stage when the leaves are 2/3 or above dried, and the stage when the tobacco tendons are totally dried. 9 key temperatures and precise humidity control points are mainly set, the time and speed change of the temperatures and the humidity is precisely controlled, the phenomenon that due to imbalance of the time and temperature change of the tobacco leaves, thedust is hung on the tobacco leaves at the upper portion, and the baking quality of the tobacco leaves is improved.

The invention discloses an intensive type bakery baking yellow and baking fragrant baking process for honghuadajinyuan tobacco. The baking process comprises three steps of conducting humidity adjustment on the tobacco at a proper temperature until the tobacco becomes yellow; conducting humidity elimination, color determination and leaf drying on the tobacco at a stable temperature; and conducting temperature controlling, humidity limiting and stems drying. Compared with the prior art, the intensive type bakery baking yellow and baking fragrant baking process for honghuadajinyuan tobacco has the advantages that the baking process improves greatly the quality of baking; the color of tobacco leaf is bright and shining; the amount of oil and fragrance of the tobacco are adequate; the quality of the fragrance is good; and the penetrating force of the fragrance is strong.

The invention discloses a roasting method of high-temperature droughty unripe tobacco leaves. The roasting method comprises the following six steps: a yellowing early stage, a yellowing middle stage, a yellowing later stage, a color-fixing front stage, a color-fixing later stage and a stem drying stage. With the roasting method disclosed by the invention, roasting loss of high-temperature droughty unripe tobacco leaves is reduced by regulating roasting process parameters, and roasting quality of the tobacco leaves is improved. Moreover, a proportion of middle and upper grades of tobacco leaves is obviously increased, the proportion of variegated tobacco leaves is reduced, and the proportion of tobacco leaves which are greenish on middle upper parts is obviously lowered, and good effect is achieved.

The invention discloses a method for improving the curing quality of tobacco leaves affected by Cold Dew. In the method, tobacco leaves with whitened tobacco stems and most setae falling off as well as faint yellow color are adopted, the tobacco loading density inside a curing barn is 42-45 kg/m<3>, and the tobacco loading volume at least occupies 95% of the total volume of the curing barn; the curing process with low temperature and limited low-humidity yellowing as well as the room-temperature drying is adopted, and specifically comprises a preheating stage, a yellowing stage, a color setting stage and a stem drying stage, and curing is carried out till the main veins of the tobacco leaves in the whole curing barn become dry, wherein the temperature rising speed in each curing stage is controlled to be 1 DEG C/1-2 h. The method is particularly suitable for the tobacco leaves planted in a delayed manner due to various reasons, and the tobacco leaves growing in tobacco areas with high altitude, low temperature and long growth period of flue-cured tobaccos, wherein the harvesting and curing of the tobacco leaves are finished during the Autumnal Equinox and the Frost's Descent, the material metabolism, synthesis and degrading of the substances inside the tobacco leaves become slow, the leaves become thick, the tissues are coarse, and the fading and yellowing are slow. The method is simple and easy to operate, the curing quality of the tobacco leaves affected by cold dews can be improved, the loss is reduced, and the income of the tobacco growers is increased.

The present invention discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature. The present invention also discloses an automatic measurement and control method for the heating regenerative ladle comprising an automatic measurement and control method for ladle internal lining, an automatic measurement and control method for the smoke and dust density in the flue exhaust and an automatic measurement and control method for flue exhaust temperature; the present invention can ensure the sufficient burning of fuel and the heating quality of the ladle; the present invention can thoroughly remove the defect that the smoke and dust will pollute the environment and the energy-saving effect is obvious.