40results about How to "Realize gas-solid separation" patented technology

The invention relates to a coal pyrolysis device, belongs to the technical field of coal quality improvement, and relates to a detachable plate type indirect heating coal pyrolysis device which comprises a casing. The top of the casing is provided with a coal feeding port and a pyrolytic gas outlet. The bottom of the casing is provided with a semi-coke discharging port. A detachable modularized heat exchange system is arranged below the coal feeding port in the casing and comprises one or more heat exchange modules in series connection in sequence. Each heat exchange module comprises a plate bundle, a tube plate and a supporting plate, at least one supporting plate is axially arranged on the circumference of the plate bundle, and the two ends of the plate bundle are fixed to the tube plate. The plate bundle is connected with the tube plate through a high temperature resistant expanding material. Along with the changes of environment temperature, the plate bundle and the tube plate are fastened or separated, and the heat exchange modules and the whole heat exchange system are detachably replaceable. Coal and high temperature gas undergo indirect type heat exchange in reverse flows on the two sides of a plate slice to achieve coal pyrolysis, so that high-quality pyrolysis gas is obtained, and energy consumption of a purification system is reduced.

The invention discloses a dust removal filtering device and method. The dust removal filtering device comprises a shell, a tubular plate, at least one filtering element, an air inlet pipeline and a back flushing structure, wherein the shell is provided with an air inlet and an air outlet, the air inlet is formed in the lower end of the shell, and the air outlet is formed in the upper end of the shell; the tubular plate is provided with at least one through hole, arranged in the shell and located between the air inlet and the air outlet of the shell; the filtering element is arranged in the shell and located below the through hole of the tubular plate, and the upper end of the filtering element is fixed to the tubular plate; the air inlet pipeline penetrates through the air inlet of the shell and extends into the shell, and the air outlet of the air inlet pipeline is located below the tubular plate; the back flushing structure is arranged below the tubular plate, and the air outlet direction of the back flushing structure faces the through hole of the tubular plate. The dust removal filtering device is simple and reasonable in structure, the load of the filtering element can be effectively reduced, the reentrainment problem is effectively avoided in the back flushing process, dust removal efficiency of the dust removal filtering device is improved, and cost is reduced.

The invention discloses a powder selecting and collecting device, which comprises a powder selecting pipe and a powder collecting pipe, wherein the upper part of the powder selecting pipe is provided with a feeding hole; the lower end of the powder selecting pipe is provided with a discharging hole; the powder selecting pipe and the powder collecting pipe are communicated with each other; the powder selecting pipe is arranged obliquely to the horizontal surface; the included angle alpha between the powder selecting pipe and the horizontal surface is more than or equal to 45 degrees and less than or equal to 90 degrees; the powder collecting pipe is arranged horizontally; the lower end of the powder selecting pipe is provided with an air inlet; the powder collecting pipe is provided with an air outlet far away from one end which is communicated with the powder selecting pipe; and the air outlet is connected with a draught fan. In the device, high air speed required by a powder selecting process of a centrifugal separating technology is not required, the aims of selecting powder and subsequently collecting powder can be fulfilled by setting the air speed at 2 meters per second in the powder selecting pipe, and the energy consumption is lowered; mostly importantly, powder selection and powder collection are performed in the powder selecting pipe and the powder collecting pipe which are communicated with each other but are not interfered with each other, so that the influence of airstream flow during centrifugal separation on powder collection is avoided, and the powder selecting and powder collecting efficiencies are increased; and the overall pressure loss of the device does not surpass 100 Pa which is only 5-10 percent of the pressure loss of the conventional centrifugal separation powder selecting system, and the energy-saving effect is remarkable.

The invention discloses a dust removal filter device and a method. Wherein, the dust removal and filtering device includes: a housing provided with an air inlet and an air outlet, the air inlet is arranged at the lower end of the housing, and the air outlet is arranged at the upper end of the housing; the tube plate is provided with at least one A through hole, the tube plate is arranged inside the shell, and is located between the air inlet and the air outlet of the shell; at least one filter element, the filter element is arranged inside the shell and below the through hole of the tube plate, and its upper end Fixed on the tube plate; the air intake pipe, the air intake pipe extends into the shell through the air inlet of the shell, and the air outlet of the air intake pipe is located below the tube plate; Direction towards the through hole of the tube sheet. The dust removal filter device of the present invention has a simple and reasonable structure, can effectively reduce the load of the filter element, and effectively avoids the problem of secondary dust raising during the back blowing process, thereby improving the dust removal efficiency of the dust removal filter device and reducing costs.

The invention provides a hydrogen production method. The method comprises the steps of enabling feed gas to enter a pyrolysis reactor in presence of iron powder so as to have reaction, and then separating reaction effluent to obtain a gas phase material and a solid phase material; enabling the gas phase material to enter a sulfur catcher for recovering elemental sulfur, and then enabling the gas phase material without the elemental sulfur to enter a desulfurization device and react with an absorbent to obtain hydrogen-rich gas and rich absorbing liquid; enabling the rich absorbing liquid to enter a regeneration tower to obtain a regenerated absorbent and desorbed gas; sending the solid phase material into a magnetic field separator, and separating to obtain ferrous sulfide and the iron powder. The invention also provides a hydrogen production system. After the hydrogen production method and the hydrogen production system are adopted, the decomposition rate of H2S is improved.

The invention discloses a device for removing acid gases in garbage incineration smoke at the high temperature. The device comprises a material separation hopper, a primary feed hopper, a secondary feed hopper, a tertiary feed hopper, a primary cross flow moving bed reactor, a secondary cross flow moving bed reactor, a tertiary cross flow moving bed reactor, a primary adjustable star discharge device, a secondary adjustable star discharge device, a tertiary adjustable star discharge device, a smoke inlet, a smoke outlet, a recovery bin, a drier, an implementing bin, a fresh material implementing bin, a garbage incineration smoke pipeline and an air preheater. The invention further discloses a method for removing the acid gases in the garbage incineration smoke at the high temperature. According to the invention, multiple stages of cross flow moving bed reactors are adopted, the garbage incineration smokes at moderate and high temperatures sequentially pass through the cross flow moving bed reactors and are in contact with adsorbents in the reactors to perform multi-stage deep acid gas removal, reduce corrosion and blockage by the acid gases on pipelines and equipment, and achieve the exhaust of the garbage incineration smoke in a purifying way.

The invention relates to a conveying experimental device for pneumatic conveying performance measurement of an expanded graphite loose material. The conveying experimental device comprises a hopper, a gas-solid separator, a negative pressure fan and a conveying pipeline and an adjusting detection device. The conveying pipeline is connected to the hopper and the gas-solid separator, a mixing proportional valve and a first negative pressure gauge are arranged in a position where the hopper is connected, a second negative pressure gauge is arranged on the right side, connected to the inlet of the gas-solid separator, of the conveying pipeline, and the right air outlet of the gas-solid separator is connected to the negative pressure fan through the adjusting detection device; in the gas-solid separator, a rotating screen with a minigroove metal net and a fixed sleeve in clearance fit form a gas-solid separating structure; the gas-solid separator comprises a sealed box body, the fixed sleeve, the minigroove metal net, the rotating screen, a star discharger, a rotating shaft and a bearing pedestal. The conveying experimental device provided by the invention solves the problems that the expanded graphite is liable to block the pipeline and the material is broken by means of an existing vacuum sucking and feeding mode, and meanwhile, the conveying experimental device can collect pneumatic conveying performance parameters of the expanded graphite particles in real time, thereby providing test equipment and method for researching pneumatic conveying basic data of ultralight loose materials.

The invention provides a device for removing dioxin in incinerator smoke carrying airflow. The device is low in cost and can be effectively suitable for removing of dioxin in high-temperature smoke, and potential safety hazards are avoided. The invention further provides a method for removing dioxin in incinerator smoke carrying airflow. The device comprises an incinerator. The incinerator is connected with a secondary combustion chamber and then communicates with an inlet of a stabilizer. An outlet of the stabilizer communicates with an electrostatic dust collector. The electrostatic dust collector communicates with an exhaust chimney through a fan I. A dust collection hopper is arranged below the electrostatic dust collector. A flue is mounted between the stabilizer and the electrostatic dust collector. Nozzles are mounted in the flue and connected with a quantitative conveying controller and a fan II through an ejection pipeline. The quantitative conveying controller is connected with an adsorbent storage bin. A modified nano activated silica adsorbent is stored in the adsorbent storage bin.

The invention provides a hydrogen production process method. According to the hydrogen production process method, raw material gas enters a pyrolysis reactor and is subjected to a reaction in the presence of iron powder, the reaction effluent is separated to obtain a gas phase material and a solid phase material, the gas phase material is recovered by a sulfur collector to obtain elemental sulfur, the obtained gas phase material enters desulfurization equipment and reacts with an absorbent to obtain a hydrogen-rich gas and a rich absorption liquid, the rich absorption liquid enters a regeneration tower to obtain a regenerated absorbent and desorption gas, and the solid phase material enters a magnetic field separator and is separated t obtain ferrous sulfide and iron powder. The present invention further provides a hydrogen production process system. With the method and the system f the present invention, the H2S decomposition rate can be improved.