31 results about "GAS RAISING" patented technology

The invention provides a low-rank coal downward circulating fluidized bed pyrolysis quality improvement process. A low-rank coal is dried and raised by a gas raising pipe, low-rank coal particles separate from each other in a hierarchical mode, flue gas exhausts outwards, fine particles enter a downward hybrid tube of low-rank coal quality improvement, and self-mixing, temperature rising and pyrolysis of large-medium particle low-rank coals with high temperature cycling carbocoal is achieved quickly at the top end of a downward pyrolytic reactor. Oil gas quickly separates from the carbocoal under a reactor vertical pipe. Through a condenser, a liquid product and coal gas are obtained from pyrolytic oil gas. The carbocoal is divided into two parts through a sub-material valve. Part of carbocoal flows into the downward hybrid tube of the low-rank coal quality improvement, and part of carbocoal enters a burning raising pipe and is burned and heated. High temperature carbocoals separate from each other in a hierarchical mode. The flue gas preheats air, and then is led to the bottom of the flue gas raising pipe to promote and dry a low-rank coal with a size less than six millimeters. The large-medium particles enter the top portion of the downward pyrolytic reactor to act as the high temperature cycling carbocoal. Fine carbocoal inflows the hybrid tube of the low-rank coal quality improvement and mixes with the low-rank coal and exchanges heat with the low-rank coal, and further, the fine carbocoal partially softens and pyrolyzes a thermoforming machine to produce a quality improvement type coal.

A combined tower tray is composed of tower plate with regularly arranged gas-raising holes, spray unit on said tower plate, liquid collector, down-flow spout and secondary down-flow spout. Said spray unit has a spray cover above said tower plate and with spray holes, and two-layer gas-liquid separating unit above said spray cover and consisting of a perforated plate and a blind plate.

The invention provides a flue gas desulfurization and SCR denitration combined system and process. The flue gas desulfurization system comprises: a desulfurization tower, wherein the desulfurization tower comprises a flue gas washing section, a flue gas desulfurization section, a desulfurization liquid capturing section, a flue gas cooling section, a demisting section and a flue gas preheating section which are sequentially arranged from bottom to top; a gas rising hole is formed in a smoke rotation accelerating device in the trapping section, and smoke is accelerated after passing through the gas rising hole; and the opening degree of the gas raising hole is greater than or equal to 25% and less than 100%; a flue gas heat exchange unit connected with the flue gas preheating section; a flue gas mixer sequentially connected with the flue gas heat exchange units; and an SCR denitration reactor and a heat exchanger. The desulfurization liquid trapping section is arranged, so that a desulfurization agent entrained in flue gas can be trapped and recycled, escape of the desulfurization agent and secondary pollution caused by escape of the desulfurization agent are reduced, and the emission concentration of SO2 and NOx is relatively low.

The invention discloses a TAIC high-rate anaerobic reactor, comprising a first reaction chamber and a second reaction chamber which are superposed, a charging tube, a discharging tube, a gas raising tube, a sludge circulation backflow tube, a tri-phase separator and a steam-liquid separating tank. The invention is characterized in that the height and diameters of the two superposed reaction chambers are different, and the upper second reaction chamber is larger than the lower first reaction chamber; the tri-phase separator relates to a ball-crown inclined connecting tri-phase separator; a circulation backflow pump provided with speed-adjusting function is arranged on the gas raising tube; the sludge circulation backflow tube is directly communicated with the lower part of a nozzle of a charging header tube; an automatic pressure-regulating charging tank is arranged on the charging tube; the charging header tube is connected with a cloth system arranged at the bottom of the first reaction chamber. The reactor is provided with super-high volume load rate, small occupied area, low capital outlay, high gas-generation, better purified water quality and strong anti-impact capability andcan be widely used for the anaerobic processing to organic waste liquids of various concentrations.

The invention relates to a gas lift well drainage simulation test device and a test method, and belongs to the technical field of gas lift well drainage in oil and gas fields. The gas lift well drainage simulation test device is composed of a wellbore simulation system, a liquid supply system, a gas supply system and a temperature and pressure control device; the gas lift well drainage simulation test method is based on the actual production well conditions, and the fluid drainage simulation test is set For the test parameters of the device, establish a gas lift well drainage simulation test device, adjust the test parameters of the liquid drainage simulation test device according to the operation status of the liquid drainage simulation test device, and determine the actual operating parameters of the actual production well. The beneficial effects are: using the opening and closing working conditions of the gas lift valve in the wellbore simulation system, observing the gradual reduction process of the liquid level in the wellbore simulation system with the working condition of the gas lift valve, and adjusting the operating parameters of the gas lift valve in the wellbore simulation system, Determine the operating parameters of the gas lift valve in the actual production well to ensure that the gas lift valve is in the best condition and ensure that the wellbore effusion is discharged step by step.

The invention belongs to the technical field of boiler flue gas purification and discloses a process and a device for dehumidifying wet flue gas purification tail gas. The process comprises the following steps that: desulfurized flue gas enters the washing section of a desulfurizing tower from a gas raising cap (9) and washing liquid sprayed by a washing nozzle (10) is sprayed to remove SO2 and NH3 escaping along with the desulfurized flue gas; the flue gas rises continually and enters a two-stage baffle plate demister, the two-stage baffle plate demister removes liquid drops of which the particle sizes are more than 5 microns from the flue gas and nozzles above and below the baffle plate demister rinse inorganic salt and fume attached to the baffle plate demister out; and the flue gas enters a smoke pipe (17), a water collecting sump (18) on the lower part of a horizontal pipe at the tail end of the smoke pipe (17) intercepts condensate in the smoke pipe and the condensate enters a condensate collecting groove (19) and is recycled into a liquid storage tank (3) through a liquid return pipe (28). In the process and the device, water spraying, demisting, liquid flow intercepting, recycling and the like are performed on the desulfurized flue gas, so that purified flue gas entering a flue and a chimney does not contain liquid water, desulfurization efficiency is improved and byproduct recovery rate is increased.

The invention provides a low-rank coal downward circulating fluidized bed pyrolysis quality improvement process. A low-rank coal is dried and raised by a gas raising pipe, low-rank coal particles separate from each other in a hierarchical mode, flue gas exhausts outwards, fine particles enter a downward hybrid tube of low-rank coal quality improvement, and self-mixing, temperature rising and pyrolysis of large-medium particle low-rank coals with high temperature cycling carbocoal is achieved quickly at the top end of a downward pyrolytic reactor. Oil gas quickly separates from the carbocoal under a reactor vertical pipe. Through a condenser, a liquid product and coal gas are obtained from pyrolytic oil gas. The carbocoal is divided into two parts through a sub-material valve. Part of carbocoal flows into the downward hybrid tube of the low-rank coal quality improvement, and part of carbocoal enters a burning raising pipe and is burned and heated. High temperature carbocoals separate from each other in a hierarchical mode. The flue gas preheats air, and then is led to the bottom of the flue gas raising pipe to promote and dry a low-rank coal with a size less than six millimeters. The large-medium particles enter the top portion of the downward pyrolytic reactor to act as the high temperature cycling carbocoal. Fine carbocoal inflows the hybrid tube of the low-rank coal quality improvement and mixes with the low-rank coal and exchanges heat with the low-rank coal, and further, the fine carbocoal partially softens and pyrolyzes a thermoforming machine to produce a quality improvement type coal.

The invention provides a liquid collecting and gas distributing device for a large-scale flue gas desulfurization tower. The device consists of a cross section-variable base plate gas raising pipe, a grid beam type gas raising pipe, a double-layer type liquid baffling hood, an inclined channel type main beam with a function of guiding liquid flow, an extracting hopper, an extracting pipe and a plane expansion joint. The device has an all-welded structure for preventing liquid from escaping, the liquid falling, the liquid drop sputtering and the zero escaping of liquid fog and the lower pressure drop can be realized due to the double-layer type liquid baffling hood, the aperture ratio of the device can be increased and the convenient corrosion prevention can be carried out due to the grid beam type gas raising pipe, the impacting foaming can be reduced and the lateral line extraction quantity can be guaranteed due to the deep extracting hopper and inclined channel; a detachable sealed liquid leakage device can be completely eradicated due to the plane expansion joint, and the thermal deformation caused by high temperature can be skillfully absorbed; and the gas distributing evenness can be guaranteed due to the gas raising pipes which are geometrically and evenly distributed. The device can be widely used for the desulfurization tower in the steel mill, the electric power plant and the like, and the large-scale packed tower in the industries of oil refining, petrifaction, chemical industry and the like.

The invention provides a three-dimensional film spraying and perforating tray belonging to the field of mass transfer and heat transfer equipment in chemical engineering. The three-dimensional film spraying and perforating tray comprises a tower body and a tower plate arranged inside the tower body, and spraying covers arranged on the tower plate. The three-dimensional film spraying and perforating tray is characterized in that a plurality of fixing holes are formed in the tower plate, a guide cylinder is fixed in each fixing hole, a liquid seal trough is arranged at the outer ring of the side wall of each guide cylinder, a gas raising hole is formed at the bottom of each liquid seal trough and is concentric with each fixing hole, the spraying cover is arranged at the inner ring of the side wall of each guide cylinder, the lower end face of the side wall of each spraying cover is welded with the bottom of each liquid seal trough, a plurality of spraying holes are formed in the side wall of each spraying cover, a top cover is arranged at the top of each spraying cover, a liquid receiving trough is arranged at the upper end of each spraying cover, the side wall of each guide cylinder is coaxially connected with the outer wall of each spraying cover and the side wall of each liquid seal trough, gaps are reserved between the side wall of each guide cylinder and the outer wall of each spraying cover and between the outer wall of each spraying cover and the side wall of each liquid seal trough, and a gap is reserved between each top cover and each spraying cover. According to the three-dimensional film spraying and perforating tray, by adopting a perforating technology, on the one hand, the problem caused by liquid streaming and mixing is solved, and on the other hand, the gas-liquid contact time is increased and through perforation, and thus the mass transfer efficiency is increased.

The invention discloses a stripper for a combined catalyst or other solid particles, and belongs to the field of gas-solid catalytic reaction. The combined catalyst stripper consists of a plate type overflow stripping region without backmixing at the upper part and a dense-phase grating stripping region at the lower part, wherein stripping gas raising hole plates, catalyst overflow weirs and catalyst descending channels are arranged on an overflow stripping plate; the cross section of the stripper is divided into many channels communicated from top to bottom through gratings in the grating stripping region, so that the high-efficiency contact between a gas phase and a solid phase can be realized, the free flow and the free exchange of the catalyst and stripping gas are realized, and the enough contact time of the catalyst and the stripping gas can also be ensured. The combined catalyst stripper disclosed by the invention is suitable for stripping various catalyst entraining reaction products and various entrainment impurities in the catalytic conversion technology.

The invention relates to a gas phase distribution device of a baffle plate tower. The gas phase distribution device is characterized by comprising an automatic liquid-level control system, a gas distributor, a pressure dropping adjusting plate and a tower plate with gas raising pipelines, wherein the tower plate with the gas raising pipelines is arranged in the baffle plate tower and is located below tower filling; the pressure dropping adjusting plate is located above the tower plate with the gas raising pipelines; the edge of the tower plate with the gas raising pipelines is connected to the tower wall of the baffle plate tower in a sealing manner; gaps are formed at two sides between the gas distributor and the tower wall of the baffle plate tower and between the pressure dropping adjusting plate and the tower wall of the baffle plate tower; the automatic liquid-level control system is arranged between the pressure dropping adjusting plate and the tower plate with the gas raising pipelines and is located on the external of the baffle plate tower; long holes are formed in a baffle plate located between the pressure dropping adjusting plate and the tower plate with the gas raising pipelines; a plurality of openings are formed in an area, located at a prefrationation section of the baffle plate tower, of the tower plate with the gas raising pipelines; and a gas raising pipeline is arranged at each opening.

The invention discloses an intelligent gas collecting device for waste gas treatment in a hot galvanizing production technology. A movable cover face on the top face of a gas collecting cover body, communicated with the gas raising face of a hot galvanizing tank, of the device is connected to a cover face driving motor and driven by the cover face driving motor so that the top face of the gas collecting cover body can be opened and closed. An air pipe is positioned and installed between a tank liquid line in the hot galvanizing tank and the top face of the gas collecting cover body. A gas collecting cover position sensor is arranged between the tank liquid line in the hot galvanizing tank and the top face of the gas collecting cover body. The cover face driving motor, a draught fan and the gas collecting cover position sensor are electrically connected with an electric control device and controlled by signals sent by the electric control gear. By means of the device, 100 percent of the collection rate of technological waste gas can be reached, the proportion of target gas collecting objects is larger than 90 percent, the investment cost is reduced, the occupied space is small, operation and observation of workers are not affected, and automatic control and remote control of a whole waste gas treatment system can be achieved through a PLC according to needs.