36results about How to "High heat and mass transfer coefficient" patented technology

The invention provides a pneumatic drying method and equipment thereof for realizing large-flow tobacco material puffing drying treatment; the method comprises the following steps: puffed tobacco material is conveyed to a drying pipe for being dried by hot air flows, and then the tobacco material is separated from hot sir; the drying pipe is composed of a horizontal drying pipe and a vertical drying pipe of which the cross section is more than the cross section of the horizontal drying pipe; hot air with the temperature at 100-250 DEG C and air flow speed of10-50m/s of is sent in the horizontal drying pipe, wherein the air flow feeding direction is vertical to the material feeding direction; the material driven by hot air flows enters in the vertical drying pipe and is ascended in a suspension way, and the ascending speed of the material is reduced to 0.5-5m/s; meanwhile, sundries such as slivers with large density in the material can not be suspended and are separated pneumatically under the wind speed. By arranging the vertical drying pipe with large caliber, the speed of the material, moving upwards along the air flow direction, is reduced, on the premise of not increasing the drying route, the drying time of the material is prolonged, heat-transferring and mass transferring coefficient is improved, and the drying time of the material is improved.

The invention belongs to the technical field of environmental protection, and particularly relates to a device and method for flue gas cyclone jet white removal coupling absorption heat pump waste heat recovery. The device comprises a desulfurization tower, a fan, a cyclone jet, an alkali liquor tank, a liquid collecting tank, a water storage tank, an absorption heat pump and a driving heat source. According to the device and method, flue gas white removal and low-temperature waste heat recovery are coupled, so that the exhaust gas temperature can be reduced, saturated water vapor and solublesalt are condensed and separated out, and the content of the water vapor and the soluble salt in the exhausted flue gas is reduced; the cyclone jet cuts and atomizes liquid into small liquid drops, sothat the heat transfer and mass transfer coefficients of the flue gas and the liquid drops are increased; the liquid drops absorb the heat of the flue gas to become low-temperature heat source water,the low-temperature heat source water flows into the absorption heat pump to release heat and be cooled to become cooling water, one part of the cooling water is used for supplementing water for desulfurization slurry, the other part of the cooling water enters the cyclone jet to be sprayed and atomized and then absorbs the heat of the flue gas, and the process is circulated. The device is smallin occupied area, low in investment cost, free of moving components, easy and convenient to maintain and suitable for existing unit transformation.

The invention relates to a refractory poor iron ore pulsating fluidized bed magnetizing roasting device and a refractory poor iron ore pulsating fluidized bed magnetizing roasting method. Iron ore powder is magnetized and roasted by adopting a pulsating fluidized bed formed by direct coupling of Rick tube type pulsating combustion and a fluidized bed. The iron ore powder is preheated by an ore heater (6) in a bin (7) and then delivered to a roasting furnace (1), the roasting exhaust is cooled by the ore heater (6) and then delivered to a burner (8) and burnt, and the burnt exhaust is cooled by a gas-gas pre-heater (9), delivered to a bag-type dust remover (10) and then discharged to the atmosphere. Sensible heat of high-temperature iron ore concentrate is reclaimed by an ore cooler (14). The device has the advantages of simple system, compact structure, low energy consumption, reduced resistance, short roasting time and the like; and by using the device and the method, poor phenomena of channeling, dead zone, short circuit and the like of common fluidized bed magnetizing roasting and the problem of over wide residence time distribution of a reactor are effectively solved, and the roasting quality and the roasting efficiency are improved.

The invention discloses a horizontal polyester solid-phase polycondensation reaction device, which comprises the following parts: horizontal tank (8), several fluid bed boards (3), several fluid chambers (9) separated by baffle (4), fluid bed row (10) between adjacent fluid chambers (9), nitrogen chamber (11) on the bottom of each fluid bed row (10) with nitrogen exhaust chamber on the top (12), wherein the feed hole (1) is set on the tank (8); the fluid bed board (3) is set in the tank (8), which displays inclined shape.

The invention discloses a gas-liquid whole-heat exchange device with a built-in cold and heat source based on a metal fiberfill. The gas-liquid whole-heat exchange device comprises a heat exchange coil, a sprayer, a metal fiberfill, a solution tank, a solution pump, a solution circulating pipeline and a tank body, wherein the solution tank is located under the tank body; the sprayer is arranged above the metal fiberfill; the solution tank is communicated with the sprayer through the solution circulating pipeline; the solution pump is arranged on the solution circulating pipeline; the heat exchange coil and the metal fiberfill are arranged in the tank body; the metal fiberfill is formed by overlapping and assembling the inclined ripple metal fiber mats at two angles; the surfaces of the metal fiber mats are preferably treated through hydrophilic nano coating; the heat exchange coil comprises a metal heat exchange tube which penetrates through the metal fiber mats along the overlapped direction of the metal fiber mats; a solution flowing channel and an air-guide channel are formed between the two adjacent metal fiber mats. According to the device, can effectively increase the contact area between the solution and air can be effectively increased, the contact time of the solution and air can be effectively prolonged, the heat mass transfer coefficient can be increased and the device can be served as a dehumidifying or regenerating unit of a solution humidity-adjusting air-conditioning system.

The invention discloses an inter-pipe redistributed film generation device capable of automatically cleaning away smoke dirt outside a pipe. The inter-pipe redistributed film generation device comprises a shell, an upper baffle, a lower baffle, a film distribution unit and a hoisting liquid receiving pot. A siphon pipe is arranged in the hoisting liquid receiving pot. Each film distribution unit comprises an initial film distribution device, a fixed pulley, a movable pulley, a pulley line, a falling film pipe, a film redistribution device, an ash scraping ring and a bearing rope, wherein the top end of the falling film pipe is connected to the upper baffle, the bottom end of the falling film pipe is connected to the lower baffle, the initial film distribution device is located in a through hole in the upper baffle, the fixed pulley is fixedly connected to the initial film distribution device, the two ends of the pulley line are connected to a pulley hook of the fixed pulley and the top end of the film redistribution device, the ash scraping ring is located outside the falling film pipe, magnetic force exists between the ash scraping ring and the film redistribution device, and the two ends of the bearing rope are connected with the movable pulley and the hoisting liquid receiving pot. In the inter-pipe distributed film generation device, the film redistribution devices can reciprocate in the pipe for film redistribution, occurrence of channeling or plume is effectively restrained, liquid film distribution is uniformized, and dust accumulated outside the pipe is removed through the ash scraping devices outside the pipe.

The invention relates to a screw type pneumatic drying machine and method. The screw type pneumatic drying machine comprises an airtight drying machine body (3), wherein the drying machine body (3) comprises a first end part (31), a second end part (32) and a shell (33); the first end part (31) and the second end part (32) are oppositely arranged, and the first end part (31); the first end part (31) and the second end part (32) are connected through the shell (33); and the second end part (32) and the shell (33) form an airtight working space. The drying machine also comprises a screw propulsion unit (2), a wet sludge feed port (1), high temperature smoke inlet (7) and a low temperature smoke outlet (4), wherein the screw propulsion unit (2) is installed in the working space; the wet sludge feed port (1) and the high temperature smoke inlet (7) are respectively arranged on the drying machine body (3); and the low temperature smoke outlet (4) is arranged on the drying machine body (3) and penetrates through the shell (33). The device and method are suitable for drying sludge, and have the advantages that the operation is continuous, the labor intensity is low, and the heat consumption is low.

The invention discloses a humidification and dehumidification type water purification device for evaporation enhancement of a fluidized bed. The humidification and dehumidification type water purification device comprises a condensation chamber, a condenser, an evaporation chamber, an upper partition board, a lower partition board, a spraying device, a heating device and a drive device, wherein an evaporation cavity is limited in the evaporation chamber, a second gas inlet, a second gas outlet and a sewage outlet are formed in the evaporation chamber, and the second gas outlet is communicated with a first gas inlet; the upper partition board and the lower partition board are arranged in the evaporation cavity in a spaced mode so as to divide the evaporation cavity into an upper cavity, a middle cavity and a lower cavity, suspended solid particles are arranged in the middle cavity, the second gas inlet is communicated with the lower cavity, and the second gas outlet is communicated with the upper cavity. The spraying device is provided with a spraying nozzle in the upper cavity. The heating device is connected between the spraying device and a water outlet pipe. The drive device is connected between a first gas outlet and the second gas inlet. By means of the humidification and dehumidification type water purification device, water purification efficiency can be improved, the structure is simple, and cost is low.

The present invention discloses a double side liquid film reverse cross double scale ripple plate absorber heat exchanging element, which includes at least two groups double scale ripple plate heat conduction plate bundles (1) disposed vertically that has a double crossing harrow type guide devices (2) mounted between each corresponding pair of plates. The harrow type guide device (2) includes an upper edge (21), the lower surface of the upper edge (21) is disposed with a guide tongue (22), and the side surface of the upper edge (21) is disposed with a liquid blocking piece (23). The present invention can realize the reverse for the double side liquid film, and fully uses the heat conduction surface of the heat exchanging element, improves the absorb ability of the solution liquid film on the heat exchanging element, and has excellent strengthen heat conduction and mass transfer characteristics.

The invention provides an evaporative cooling system which comprises a fan, an evaporation device, a water drainage device and a drive device. The evaporation device comprises a multi-stage linked roller set and a water storage box, and the water storage box is arranged at the bottom of the multi-stage linked roller set. The fan is arranged at the top of the evaporation device. The water drainagedevice is arranged at the bottom of the water storage box. The drive device is connected with the evaporation device and used for driving the evaporation device to run. A ventilation cooling system comprises a building wall and the evaporative cooling system, and the evaporative cooling system is arranged in the building wall. Compared with a traditional roller type evaporative cooler, the wet superficial area of multi-stage rollers is increased by more than three times, the heat and mass transfer area of air and water is larger, and the heat and humidity transfer effect is better.