64results about How to "Long continuous operation period" patented technology

The invention discloses a high-pressure separator and a method for high-pressure separation, and is characterized in that: a cyclone gas-liquid separator is disposed on the middle-upper part of a housing of the high-pressure separator; the cyclone gas-liquid separator is connected to the housing of the high-pressure separator through a column tray plate or a gas-collecting pipe; mixed gas entering the high-pressure separator is cyclone-separated by the cyclone gas-liquid separator; after oil, water and few solid particles are removed, the gas is discharged from the high-pressure separator. The invention can reduce the gas phase molecular weight of the high-pressure separator, eliminate physical factors which cause foaming of desulfurizers in a desulfurization tower, and prolong the continuous operation period of the whole device.

The invention discloses a three-phase multi-raw-material pressurized coal gasification device and a process thereof, which comprises a coal slurry preparing and conveying mechanism, a dry coal powder preparing and conveying mechanism and a pressurized gasification mechanism, wherein the coal slurry preparing and conveying mechanism consists of a coal mill, a coal slurry groove, a high-pressure coal slurry pump, and a high-pressure coal slurry pipeline; the dry coal powder preparing and conveying mechanism consists of a dry powder preparer, a dry powder storage groove, a screw conveyor, a coal powder pipeline and a nozzle feeding bin; and the pressurized gasification mechanism consists of a combustion chamber and a quench chamber. The high-pressure coal slurry pipeline and the nozzle feeding bin are respectively connected with a mixing nozzle which is arranged on the combustion chamber and is communicated with the interior of the combustion chamber. By the combination of multiple phases and multiple raw materials, the pressurized coal gasification device increases the content of carbon in the reactants and increases reacting efficiency and production intensity, and the contents of carbon monoxide and hydrogen in the active ingredients are increased from 80% to 84%-88%, thereby improving the comprehensive utilization ratio of the coal resource and reducing the discharge amount of carbon dioxide.

The invention discloses a three-phase multi-material three-dimensional pressurized clash coal gasification device and a process thereof, which comprises a coal slurry preparing and conveying mechanism, a dry coal powder preparing and conveying mechanism and a pressurized gasification mechanism, wherein the coal slurry preparing and conveying mechanism consists of a coal mill, a coal slurry groove, a high-pressure coal slurry pump and a high-pressure coal slurry pipeline; the dry coal powder preparing and conveying mechanism consists of a dry powder preparer, a dry powder storage groove, a screw-rod conveyer, a coal powder pipeline and a nozzle feeding bin; and the pressurized gasification mechanism comprises a combustion chamber and a quench chamber. A water-coal slurry nozzle and a dry coal powder nozzle are arranged on the combustion chamber and are respectively communicated with the interior of the combustion chamber; and the dry coal powder nozzle and the water-coal slurry nozzle are also connected with a high-pressure gas pipeline. The dry coal powder nozzle arranged at the top reduces the damages of the returned air current mixture to the vault and the blind-head firebricks, thereby improving the utilization rate of the equipment. The injection mode of the dry powder and the carbon dioxide at the top increases the content of carbon in the reactants, and the active ingredients in the coal gas are increased to 85% above, thereby improving the utilization ratio of the coal resource and reducing the discharge amount of carbon dioxide.

The invention relates to the field of coal chemical wastewater treatment, in particular to a device and a method for purifying methanol-to-olefin device washing water. The method comprises the following steps: pumping out the washing water from the bottom of a washing tower, and sending to a granular-bed separator; enabling the washing water to run through the granular bed in a horizontal direction, intercepting particulate matters in water, and agglomerating microfine oil droplets in the water under the oil substance adsorbing and agglomerating actions of medium particles in the granular bed;performing settling separation on the agglomerated oil droplets under the action of gravity; after the granular bed adsorbs the particulate matters in the water till a saturated state, feeding wastewater from the bottom of the granular bed, mixing with gas, fluidizing the medium particles till a boiling state, releasing solid pollutants between bed layers, and sending the pollutants to a solid concentrating unit along with backwashing liquid. By the method, separation of catalyst particles and the oil substances from the washing water is achieved.

The invention relates to a micro-cyclone liquid collecting method and device for regeneration gas of a flue gas and carbon dioxide capture system. The method comprises the following steps: (a) carrying out air cooling and water cooling on the regeneration gas from a regenerating column so as to convert the serotonin solution-containing saturated steam carried in the regeneration gas into fog drops, thus obtaining regeneration gas carrying aerosol particles; (b) performing gas-liquid micro-cyclone separation on the regeneration gas carrying aerosol particles so as to capture the aerosol particles carried in the regeneration gas so as to obtain aerosol particle-removed regeneration gas; and (c) collecting the captured aerosol particles into a liquid, and directly returning the liquid to the serotonin solution system together with the serotonin solution output from the bottom of a regenerating tower.

The invention relates to a rotational-flow purifying device for a gaseous product in a fluidized-bed residual oil hydrogenation reactor. The device comprises the fluidized-bed residual oil hydrogenation reactor and a thermal high-pressure gas/hydrogen heat exchanger, wherein a thermal high-pressure flash tank is arranged between the reactor and the heat exchanger, and comprises a thermal high-pressure flash tank shell and an inlet distribution ring arranged in the shell; the inlet distribution ring has a spiral structure and defines a spiral channel together with the thermal high-pressure flash tank shell; a gaseous product inlet is formed in the thermal high-pressure flash tank shell; a tangential inlet guide pipe is mounted on the gaseous product inlet; the thermal high-pressure flash tank also comprises a micro-rotational-flow separator set arranged at the top in the thermal high-pressure flash tank shell. According to the device, the gaseous product in the fluidized-bed residual oil hydrogenation reactor is subjected to stepped rotational-flow separation, so that the entrainment quantity of liquid and catalysts in the gaseous product during a cold high-pressure separation process is reduced, the problem of blockage of the high-pressure heat exchanger is avoided, the energy consumption of a fluidized-bed hydrogenation device is greatly reduced, and the running cycle of the device is prolonged.

The invention discloses a continuous enlarging cultivation device for mineral-bioleaching microorganisms. The cultivation device comprises a cylinder which is formed by sequentially connecting an upper cylinder body, a middle cylinder body and a lower cylinder body, wherein the upper cylinder body can collect feed liquid which is discharged due to overflowing, the middle cylinder body can continuously cultivate the microorganisms in an enlarged mode, and the lower cylinder body can collect discharged precipitates. A detachable multi-layer filler assembly is arranged in the middle cylinder body, the multi-layer filler assembly is composed of a multi-layer filler box and filler which is arranged in the filler box, a heater, a nutrient solution distributing plate and an aeration device are arranged below the multi-layer filler assembly, and the aeration device is arranged below the nutrient solution distributing plate. The cultivation device is simple in design, continuous cultivation canbe achieved, the concentration of the microorganisms in a mature bacteria solution can be improved, and while continuous production of the high-concentration bacteria solution is maintained, the problem about the loss of strains in a reactor is effectively eased. The cultivation efficiency of the mineral-bioleaching microorganisms is improved, and the device has the advantages of being safe, efficient, low in space occupation, low in power consumption, simple and easy in operation and capable of achieving combined cultivation of a plurality of cultivation devices.

The invention discloses a heat-dissipation assembly suitable for a standard 4U cabinet. The heat-dissipation assembly comprises a heat-conducting plate arranged in the cabinet. The heat-conducting plate is connected with a cabinet plug-in panel; the heat-conducting plate is embedded by a plurality of heat-conducting pipes; the heat-conducting pipes conduct heat to the plug-in panel; a heating element in the cabinet is attached to the heat-conducting plate; the cabinet plug-in panel is externally provided with a heat-dissipation fin; and the heat-dissipation fin is internally embedded by a fan. The heat in the cabinet is conducted to the cabinet plug-in panel through the heat-conducting plate embedded with the heat-conducting pipes, and then, the heat is diffused to the air through the heat-dissipation fin and the fan and through forced air circulation without providing holes in the cabinet, thereby reducing dust pollution of the elements in the cabinet, improving device service life, improving reliability and enhancing anti-interference capability.

The invention belongs to the technical field of polycrystalline silicon production, and relates to a chlorosilane-containing slurry treatment method and a chlorosilane-containing slurry treatment system. The chlorosilane-containing slurry treatment method disclosed by the invention comprises the following steps: chlorosilane-containing slurry gets into a slurry collection tank, and is kept still,and by utilizing the incompatibility and density difference between components in the slurry, the slurry is formed into supernate and bottom turbid liquid in the slurry collection tank; the supernateis discharged out from a plurality of chlorosilane outlets which are arranged at different heights on the slurry collection tank, sequentially passes through a filter and a delivery pump, and gets into a chlorosilane recovery device; and the bottom turbid liquid gets into a washing device from the bottom outlet of the slurry collection tank under the effect of pressure difference and is washed. According to the invention, the chlorosilane recovery rate is high, the quality of recovered chlorosilane is better, and the requirement of electronic-grade polycrystalline silicon production on qualitycan be met. Moreover, the investment of the process is low, safety is good, the continuous operation period is long, later operation and maintenance costs are low, the investment recovery period is short, and risk is low.

The invention relates to a deep control method and a deep control device of a pollutant in burning gas of an ethane cracking furnace and provides a deep control method of a pollutant in burning gas of an ethane cracking furnace. The method comprises the following steps: (a) performing micro cyclone separation on the burning gas of the ethane cracking furnace so as to remove solid impurities in gas; (b) washing the gas obtained in the step (a) so as to preliminarily absorb and cool the stinky pollutant in the gas; (c) performing micro cyclone absorption and cooling on the gas obtained in the step (b) so as to deeply absorb and cool the stinky pollutant and absorb enriched liquid and stinky pollutant condensate to separate and recycle; (d) regenerating the absorption enriched liquid obtained in the step (c) for cycle use. The invention further provides the deep control device of pollutant in the burning gas of the ethane cracking furnace.

The invention relates to a treatment method and device for concentrating, drying and detoxifying a dead catalyst entrained in isobutylene during preparation of the isobutylene by isobutane dehydrogenation. The method comprises the following steps: (a) washing a high-temperature isobutene gas generated by isobutane cracking reaction by using circulating cooling water, so as to obtain a washing wastewater containing the dead catalyst; (b) concentrating dead catalyst particles in the obtained washing wastewater by adopting micro cyclone separation, so as to obtain dead catalyst concentrate; (c) carrying out pressure filtration on the obtained dead catalyst concentrate, so as to further remove free water in the concentrate, thus obtaining a dead catalyst filter cake; (d) baking the obtained dead catalyst filter cake by using a flue gas discharged by a regenerator during preparation of the isobutylene by isobutane dehydrogenation to obtain a wet catalyst filter cake with low moisture content, and simultaneously raising the temperature of the wet catalyst filter cake by using the heat of the regenerated gas; and (e) introducing a CO gas to the regenerator, and carrying out redox reaction to generate a catalyst.

The invention relates to a high speed rotating casing pump unit, in particular to a rotating casing pump unit composed of a gear speed increasing assembly type high speed rotating casing pump. The pump unit comprises the gear speed increasing assembly type high speed rotating casing pump, an integrated shaft head oil pump, a coupler and a driving motor. The coupler enables the driving motor to be connected with a low speed shaft of the gear speed increasing assembly type high speed rotating casing pump. The gear speed increasing assembly type high speed rotating casing pump is composed of a stator part, a rotor part and a box body part. The stator part is composed of two rotating casing pump suction/discharging parts, a protection casing of the stator part is connected onto a location flange of the box body part, and a shaft seal part is located on the inlet side of each suction part. The rotor part is composed of a high speed shaft system and a low speed shaft system and adopts a single-oblique-tooth gear pair, each rotating casing pump rotor is directly connected with the high speed shaft, and double-side thrust discs for balancing residual axial force are arranged on two sides of the small gear tooth width direction of the high speed shaft to meet the alternating axial load work condition. The high speed rotating casing pump unit is compact in appearance, small in axial force borne by the bearing, large in pump unit flow application range and good in anti-cavitation performance.

The invention relates to a feed method for coal tar. After the pressure of a coal tar raw material is boosted by a hydrogenation reaction raw material booster pump, the coal tar raw material enters a hydrogenation reactor without any indirect heat exchange; and before the pressure of the coal tar raw material is boosted, the coal tar raw material can be hot stream from a fractionating tower. The method can avoid a high-pressure heat-exchange temperature-rise process of the coal tar, eliminate the problem of fouling of high-pressure coal tar heat exchangers, reduce the hydrogenation catalyst bed pressure drop, slow down the coking, and prolong the operation cycle.

The invention discloses a hydrogen purification equipment carbon adsorption tower in electronic-grade polycrystalline silicon production process. The hydrogen purification equipment carbon adsorptiontower comprises a tower body which is of a cylindrical structure, and five groups of oil input pipes, five groups of oil output pipes and 31 heat exchange pipes which are arranged in the tower body; ajacket form is adopted by the outer wall of the tower body, the oil output pipes and the oil input pipes are connected with the heat exchange pipes in the tower body, and the jacket, and the rest space in the tower body is filled with activated carbon. The hydrogen purity is improved, impurities in hydrogen are reduced, the safety of the system is improved, and the continuous operation period ofthe system is prolonged.

The invention provides a tripolycyanamide whole circulation production process and device. Liquid urea is used as a raw material to be fed into a tripolycyanamide reactor; tripolycyanamide, ammonia and carbon dioxide gas mixture material gas is generated; after the cooling and purification separation, the tripolycyanamide is subjected to desublimation to form a solid phase in a chiller to realizethe gas-solid separation in an efficient separator; the tripolycyanamide is fed into a packaging system; gas containing ammonia and carbon dioxide and separated from the efficient separator enters a combined efficient washing cooling tower; one path of gas subjected to washing, cooling and temperature lowering is pressurized to enter the tripolycyanamide reactor; one path is subjected to liquid urea synthesis through an efficient synthesis urea conversion system and then enters the tripolycyanamide reactor for repeated production of the tripolycyanamide product. The tripolycyanamide productionprocess has the advantages that tripolycyanamide process tail gas cannot be discharged to a position outside a tripolycyanamide production device boundary region; the tripolycyanamide process tail gas realizes the self circulation utilization inside the tripolycyanamide process production device boundary region; the device belongs to a clean environmental-friendly device; the total efficient circulation utilization of the tripolycyanamide process tail gas in the tripolycyanamide process production device can be realized.

The invention relates to the field of biodiesel preparation, and discloses a method and system of utilizing a temperature variable-pressure variable continuous method to prepare biodiesel. According to the method, raw materials containing grease and alcohols are directly introduced into a first reactor to carry out reactions, a first material is obtained from the upper part of the first reactor; then the first material is introduced into at least two serially connected second reactors to carry out reactions, and a second material is obtained from the upper part of the last second reactor. According to the provided temperature variable-pressure variable continuous method, raw materials containing grease and alcohols are directly introduced into the first reactor to carry out reactions and do not go through a conventional preheating reactor, thus precipitates will not be accumulated in a high pressure heater during the preheating process, and the defect that the system cannot run stablyfor a long term is overcome.

The invention relates to a purification method and device for short-process coal gasification black water. The purification method for the short-process coal gasification black water comprises the following steps: (i) allowing the short-process coal gasification black water to enter a jet flash separator for flash evaporation treatment; (ii) feeding the short-process coal gasification black water having been subjected to jet flash evaporation treatment to a micro-cyclone separator for preliminary centrifugal separation; (iii) sending the short-process coal gasification black water primarily purified by the micro-cyclone separator to a fluidized-bed separator for secondary purification; (iv) sending the short-process coal gasification black water deeply purified by the fluidized-bed separator to a deaerator for deoxygenation; and (v) after the fluidized-bed separator operates for a period of time and a pressure difference is 0.3 MPa, mixing the recycled short-process coal gasification black water and nitrogen and reversely feeding the obtained mixture to regenerate the separation medium of the fluidized-bed separator. The invention further provides the purification device for the short-process coal gasification black water .