41results about How to "Improve ash removal efficiency" patented technology

The invention provides a loudspeaker box dust screen cleaning device capable of combining inertial dust collection with airflow lotion dust collection, and relates to the field of loudspeaker box cleaning equipment. The loudspeaker box dust screen cleaning device capable of combining inertial dust collection with airflow lotion dust collection comprises a supporting fixed housing, wherein the sidewall of the supporting fixed housing is spliced with a holding internal hollow fixing barrel; the side wall of the holding internal hollow fixing barrel is spliced with a lateral grip; the top of theinner wall of the supporting fixed housing is spliced with a dust-proof moisture-proof protecting case; the top of the supporting fixed housing is provided with a floating dust cleaning and removal mechanism. According to the loudspeaker box dust screen cleaning device capable of combining inertial dust collection with airflow lotion dust collection, one end of a rotary sliding rod is controlledby a driving motor to slide in a concave sliding ring to enable the rotary sliding rod to incline to one side of a jacking spring; after sliding, an overturning linkage rod is jacked under the elasticfunction of the jacking spring to drive a round knocking ball on the end part of the overturning linkage rod to knock the loudspeaker box dust screen, dust is separated from the dust screen due to the influence of inertia, and the dust removal efficiency of the loudspeaker box dust screen is effectively improved.

The invention discloses a dust removal device used for rice fine processing and a usage method. The device includes a shell body, a stirring device located in the shell body, and a dust suction deviceoutside the shell body. Compared with the prior art, the device utilizes openings on a stirring shaft to cooperate with the dust suction device to process materials, the separation efficiency is high, and process steps are reduced, thereby improving the ash removing efficiency; compared with a conventional process, the process no longer adopts a centrifugal principle, does not increase generationof broken rice, and cooperates with dry ice to cool the interior of the materials, the electrostatic adsorption effect is decreased, after the temperature is lowered, dust on the materials is polished down more easily, and the dust removal efficiency is improved; magnets are disposed inside an inner shell and can fully attract iron scraps, and the like in the materials, and so, production and food safety is ensured, and dust removal is more thorough; and the device is suitable for all links of unhusked rice production, has a wide range of applications, and can effectively remove the iron scraps in the materials, the iron scraps are collected in the inner shell, if the iron scraps contained in the magnets are too much, the iron scraps cannot fall into the device, and the iron removal effect is more obvious.

The invention relates to an ash removing device of the tail flue of a fluidized boiler. The ash removing device comprises a smoke inlet pipe, a cooling pipe, a separation pipe and a sedimentation pipe, wherein the axis of the columnar pipeline of the separation pipe is vertical to the ground, the open end of the columnar pipeline faces to the ground, and the smoke inlet pipe is arranged on the lateral wall of the columnar pipeline; one end of the smoke inlet pipe is communicated with the interior of the columnar pipeline, and the other end thereof is communicated with the tail flue of the fluidized boiler; the cooling pipe is mounted at the sealed end at the top of the separation pipe, the other end of the cooling pipe is communicated with the interior of the separation pipe, and a spraying component is mounted in the cooling pipe; a separator is disposed on the wall face of the separation pipe and comprises a plurality of filter plates, and the filter plates are arranged on the inner wall of the separation pipe in a zigzag and staggered manner; an exhaust pipe is arranged at the bottom of the separation pipe. The ash removing device has the advantages that smoke is absorbed through water, and separation of waste gas, particles and soluble impurities is achieved by the filtering separation mechanism.

The invention discloses a flue gas ultra-clean wet dust collection system of a power plant. A scrubbing tower is communicated with a venturi scrubber connected with flue gas at the outlet of the tail part of a boiler; the bottom of the scrubbing tower is provided with a scrubbing tower circulation pump; the scrubbing tower circulation pump has two outlets, one outlet is connected with the venturi scrubber, and the other outlet is connected with a circulation water heat exchanger; an outlet of the circulation water heat exchanger is connected with a connector at the upper part of the scrubbing tower; an outlet at the top of the scrubbing tower is connected with a chimney; ash in flue gas from the tail part of the boiler is mainly removed by the venturi scrubber and the scrubbing tower; flue gas passes through the venturi scrubber, so that the ash content is soaked fully and then is removed by the scrubbing tower; ash water extracted from the lower middle part of the scrubbing tower is pressurized by a circulation pump of the scrubbing tower to act as scrubbing water of the venturi scrubber; in order to improve the removing efficiency of acid gas, an alkaline solution can be added into ash water which is introduced into the scrubbing tower; boiler feed water serving as fresh supplied water is added into the circulation solution of the tower. The system is simple in structure, is low in investment, and is high in dedusting efficiency.

The invention discloses a downward-drive type device for removing dust on the inner surface of a steel pipe. The device comprises an air nozzle, an air suction cavity, a plurality of multi-station rotating discs, a plurality of driving assemblies and a long arc sealing plate. The distance between the air nozzle and the air suction cavity is slightly larger than the length of the steel pipe, and the air nozzle and air suction cavity are arranged at the dust removing position. The multi-station rotating discs are arranged in the axial direction of the steel pipe, at least three gaps are formed in each multi-station rotating disc, and each gap is a station. The driving assemblies are correspondingly connected with the multi-station rotating discs and drive the multi-station rotating discs to synchronously rotate with the axes of the multi-station rotating discs as rotating axes. The two sides of each station are respectively provided with a sealing side plate which is arranged in the axial direction of the steel pipe, and each sealing side plate is fixedly arranged between every two adjacent multi-station rotating discs. The long arc sealing plate is arranged below the multi-station rotating discs in the axial direction of the steel pipe, and a sealing space is formed between the long arc sealing plate and the sealing side plates at the dust removing position. The downward-drive type device for removing the dust on the inner surface of the steel pipe can rapidly and effectively remove the dust on the thin and long steel pipe and improve reliability and working efficiency.

The invention relates to an electrostatic spraying method for aluminum profile manufacturing. The method involves a bottom plate, a conveying device, a fixing device and dust removing devices, wherein the conveying device is fixedly arranged on the upper end face of the bottom plate, the fixing device is installed at the position, close to the left end, of the upper end face of the conveying device, and the dust removing devices are symmetrically arranged at the position, close to the right end, of the upper end face of the conveying device front and back. The method can solve the following problems possibly occurring in the dust removing process of an existing aluminum profile that a, adhesion treatment is manually performed on the surface of the aluminum profile through adhesion equipment to remove dust attached to the surface of the aluminum profile, and the mode can cause high labor intensity of dust removing personnel and lead to low dust removing efficiency due to high time consumption; and b, the situation of missing adhesion or incomplete adhesion often occurs during manual dust removing, so that the subsequent electrostatic spraying process is influenced, and consequently the production quality of the aluminum profile is poor.

The invention discloses an ash removal method for high-sulfur coal after high-temperature gasification, and belongs to the technical field of ash removal. The ash removal method after high-temperaturegasification of the high-sulfur coal comprises the following steps: step 1, performing cyclone separation; step 2, performing filtering; step 3, performing primary treatment of fly ash; step 4, performing secondary treatment of the fly ash; and step 5, performing discharging. The ash removal method for the high-temperature gasified high-sulfur coal has the advantages of being high in ash removalefficiency, easy and convenient to operate, low in energy consumption, low in treatment cost, small in environmental pollution and the like.

The invention discloses a device and method for pre-removing coarse particle ash in front of an SCR denitration device. The device comprises an economizer outlet flue, an economizer ash hopper, a plurality of baffle plates, a plurality of ash collecting hoppers and a plurality of ash falling pipes. A flue gas inlet is formed in the top of the economizer outlet flue, the baffle plates are sequentially distributed in the economizer outlet flue, the baffle plate on the outermost side is fixed on the outer wall of the economizer outlet flue, the baffle plate on the outermost side is obliquely distributed, the other baffle plates are of herringbone structures or other structural forms capable of enriching dust and guiding the dust into the dust collecting hoppers, a gap is formed between everytwo adjacent baffle plates, wherein one gap corresponds to one ash collecting hopper and one ash falling pipe, the ash collecting hopper is located below the corresponding gap, a bottom outlet of theash collecting hopper is communicated with the upper end of the corresponding ash falling pipe, and the lower ends of the ash falling pipes penetrate through the side wall of the economizer outlet flue to be inserted into the economizer ash hopper. The device and the method can effectively improve the ash collecting effect of the economizer flue.

The invention relates to the field of coal chemical industry, in particular to a method for preparing ultra-pure coal. The method for preparing the ultra-pure coal comprises the following steps: (1) roasting coal in protective gas; (2) carrying out alkali treatment on the roasted coal to obtain secondary coal; and (3) adding acid into the secondary coal for leaching, and conducting washing and drying to obtain the ultra-pure coal. According to the method, the coal is roasted, so that organic volatile components in the coal can be effectively reduced, the situation that a filtering channel is blocked by colloidal particles is reduced when the coal is treated by a subsequent acid-alkali method, filtering and washing are facilitated, and the content of residual alkali in the secondary coal is greatly reduced. According to the method disclosed by the invention, the ash removal efficiency of the coal, especially the coal with low coalification degree, is improved, the ash content of the obtained ultra-pure coal is less than 0.3 wt%, the use amount of acid and alkali is reduced, and the pollution and comprehensive treatment cost are reduced.