61 results about "Mixed dust" patented technology

The invention discloses a resource utilization method of blast furnace dust and coke furnace dust. The resource utilization method comprises the following steps: 1) sieving out the blast furnace dust and the coke furnace dust with the grain sizes of 150-400 meshes; 2) mixing the sieved blast furnace dust and the sieved coke furnace dust according to a mass ratio of (2-5): 1, adding bentonite and an ammonium salt solution, stirring uniformly, granulating to obtain granules with the grain sizes of 1.5- 5.0mm; 3) drying the granules, adding the granules into a muffle furnace, rising the temperature to be 400- 650 DEG C at a heating speed of 12-18 DEG C/min in an inert gas atmosphere, roasting for 1-2h, sintering to obtain mixed dust granules; 4) adding the mixed dust granules into coking biochemical effluent, adjusting the PH value to 3-5, uniformly stirring and mixing, sufficiently degrading organic substances in the coking biochemical effluent for deep treatment. By the resource utilization method, the problems of environment pollution and large floor area of the blast furnace dust and the coke furnace dust are solved, the deep treatment of the coking biochemical effluent is implemented and the treatment cost of the coking wastewater is reduced.

The invention provides an electrostatic bag type mixed dust remover, which relates to the technical field of flue gas cleaning and dust removal. The electrostatic bag type mixed dust remover comprises a plurality of rows of discharge electrodes arranged at intervals along the direction of the gas flow at an inlet and a plurality of rows of filter bags. Two sides of each row of filter bags are provided with dust-collecting polar plates, and V-shaped deflectors and V-shaped sealing plates are arranged at the front and back ends of two adjacent dust-collecting polar plates respectively. The electrostatic bag type mixed dust remover has the structural characteristic that the dust-collecting polar plates consist of front dust-collecting polar plates positioned at a front section and connected with the deflectors, dust-collecting orifice plates positioned at a back section and connected with the upper parts of the front dust-collecting polar plates, and lower dust-collecting polar plate connected with the lower parts of the front dust-collecting polar plates. The dust-collecting orifice plates are uniformly distributed with a plurality of orifices, and the rows of filter bags are arranged at the back sections of the dust-collecting polar plates at the positions of the dust-collecting orifice plates. The invention adopts combined dust-collecting polar plates, reduces the ash filtration load of the filter bags, realizes a complete ash cleaning process, and improves the performance of a whole dust-removal system.

A method for treating sulfur slag comprises the following steps of: performing liquation treatment on sulfur slag containing 65-73% of tin and 6-15% of copper on the crude tin liquid in an iron pot in the range of 500-700 DEG C, thereby obtaining liquid crude tin and liquation slag containing 48-60% of tin and 8-23% of copper, recovering the liquid crude tin in the pot and completely oxidizing the liquation slag by industrial oxygen at a high temperature into mixed dust of copper oxide and tin dioxide, leaching the mixed dust for 2-3 hours under conditions of normal temperature and normal pressure, 70-120 g/L initial acid, and then filtering; reducing and smelting the filter residue to obtain crude tin, and concentrating, crystallizing and separating the filtrate to produce copper sulfate pentahydrate or performing electrolysis to produce electrolytic copper; and then returning the crystallization mother liquor or the liquid after electrolysis to the leaching process for liquid preparation. The method provided by the invention is capable of directly recovering most metal tin and realizing recovery of tin and copper in the sulfur slag without generating wastewater, waste gas and waste residues.

The invention provides a static hop-pocket mixed dust removal device and a control method thereof, belonging to the technical field of flue gas purification and dust removal. The device of the invention comprises a plurality of static hop-pocket mixed dust chambers and is structurally characterized in that the flue gas inlet of the static hop-pocket mixed dust chamber is connected with an inlet main flue by an outlet sub flue provided with a flue gas stop valve. The flue gas outlet of the static hop-pocket mixed dust chamber is connected with an outlet main flue by an outlet sub flue provided with the flue gas stop valve, and a flue gas purification chamber at the top part of the static hoop-pocket mixed dust chamber is connected with the outlet main flue by an upper outlet sub flue provided with the flue gas pipe valve. The inlet main flue and the outlet main flue are respectively provided with a flue gas interconnection valve on the main flues arranged between two adjacent front inlet sub flues and between two adjacent rear outlet sub flues. The invention can realize flexible conversion of multiple operation modes, and improves dust removal efficiency of the whole dust removal system.

The invention discloses a building engineering dust falling device based on collision and jet airflow combination and a using method thereof. Comprising a main body supporting mechanism, a dual-action type magnetoelectric mixed dust adsorbing and filtering mechanism, a jet flow multi-direction type anti-static adhesion type high-temperature rapid cooling mechanism, a collision mixed type atomization dust falling type dusty air water mist cleaning mechanism and a collision friction type ion increasing type air purifying and conveying mechanism. The main body supporting mechanism comprises a bottom plate, a water storage tank body, a supporting plate, an adsorption tank body, a friction tank body and a fixing frame. The invention belongs to the technical field of constructional engineering equipment, and particularly relates to a constructional engineering dust falling device based on impact and jet airflow combination and a using method thereof. According to the building engineering dust falling device based on impact and jet airflow combination and the using method thereof, dust can be adsorbed and treated through the two-way effect, water can be fully utilized, and the dust falling process can be cooled in multiple directions.

The invention relates to a titanium high temperature electrolytic furnace special-purpose tail gas processing system, wherein the tail gas contains a hydrogen fluoride gas and a few solid calcium fluoride dust or calcium fluoride and lithium fluoride mixed dust. The system provided by the invention comprises a deduster, a pneumatic tube, a tail gas control device, a tail gas processing device, a woven hose and a proportioning device, wherein the deduster is used to remove a few solid calcium fluoride dust or the calcium fluoride and lithium fluoride mixed dust contained in the tail gas; the pneumatic tube is used to convey the tail gas into the tail gas processing device; the tail gas control device is used to control the flow of the tail gas; the woven hose is used to convey an absorption liquid into the tail gas processing device; and the proportioning device is used to proportion the absorption liquid and pump the absorption liquid into the tail gas processing device through the woven hose.

The invention relates to a linear vibrating screen underneath type dust removal system and a linear vibrating screen underneath type dust removal method. The linear vibrating screen underneath type dust removal system and the linear vibrating screen underneath type dust removal method not only an achieve dustless discharge during the sand screening process, but also can reduce electric energy used in a background technology by about 50%. The linear vibrating screen underneath type dust removal system comprises a fixed type linear vibrating screen, wherein one layer or multiple layers of movable type vibrating linear screens are arranged below the fixed type linear vibrating screen, a seal cover covers the periphery of a discharge hole of the fixed type linear vibrating screen and the multiple layers of the movable type vibrating linear screens, and a negative pressure dust suction port is located on the discharge hole of the fixed type linear vibrating screen, and communicated with the movable type vibrating linear screen on the upper layer of the multiple layers of the movable type vibrating linear screens through the seal cover. The linear vibrating screen underneath type dust removal system and the linear vibrating screen underneath type dust removal method have the advantages of 1) needing no wind to blow sand, being capable of completely sucking mixed dust screened out by the fixed type linear vibrating screen, preventing the dust and the sand from being mixed, and obtaining pure sand; 2) being low in energy consumption, and then saving energy due to the fact that sucked material of a cyclone dust collector is the dust low in weight; 3) guaranteeing that cleaning gas is discharged through an exhaust pipe of a pulse bag type dust collector.

The invention discloses a dust-absorbing speed-regulating upper grinding machine which comprises a grinding machine body, a rotating shaft, a water pipe, an induced draft fan and an atomizing nozzle.The top of the grinding machine is provided with a nameplate, and a motor is arranged below the left side of the nameplate. A speed control button is disposed below the motor, an indicator light is disposed below the right side of the speed control button, and the rotating shaft is mounted on the motor. A dust removal circulation system is disposed inside the original grinding machine, and the induced draft fan adsorbs dust generated by grinding into a dust removing tank, the atomizing nozzle liquefies the dust in the dust removing tank, the liquid mixed with the dust is transported to a watercirculating tank through a water pipe, and the dust is filtered through a filter screen and gathered in a dust separating area, and water is stored in a water storage area for recycling. At the sametime, the induced draft fan can eliminate dust odor, reduce the respiratory damage to an operator, reduce the outside dust residue, reduce the safety hazard in a production workshop, and reduce the additional economic investment on the dust treatment.

The invention discloses a mixed dust removal device comprising a dust removal chamber; the bottom of the dust removal chamber is provided with dust hoppers. The mixed dust removal device is characterized in that the dust removal chamber is divided into an electric dust removal chamber and a bag dust removal chamber by a segregation plate, one side of the electric dust removal chamber is provided with an airflow inlet, the electric dust removal chamber is internally provided with a polar plate, and the top of the electric dust removal chamber is provided with a power supply; and the bag dust removal chamber is internally provided with a plurality rows of filter bags, the top of the bag dust removal chamber is provided with an airflow outlet, the bottom of the bag dust removal chamber is horizontally provided with a guide pipe communicating with the electric dust removal chamber, and the guide pipe is provided with opening holes. With combination of working principles of an electric dust removal device and a bag dust removal device, the structures and positions of various components are reasonable arranged, and the dust removal efficiency and the dust removal effect are improved.

The invention relates to a determination method for the dispersity of dust in air of a working field. The determination method comprises the following steps: preparation of a dust suspension solution according to GBZ/T192.3-2007 and ocular lens micrometer calibration; preparation of a dust sample, namely inflating the uniformly-mixed dust suspension solution into a counting tank of a blood counting plate; standing and depositing dust grains at the bottom of the counting tank; dispersity determination, namely taking off an objective lens micrometer and putting the blood counting plate into which the dust sample is dropped on an objective table; finding out the dust grains by using a low-power lens; observing with magnifying power by a calibration ocular lens micrometer; selecting four corners of a large square cell at the center of the counting tank and five middle square cells at the center of the counting tank; sequentially determining the size of each dust grain by using the objective lens micrometer; measuring a long diameter when meeting a long diameter amount and measuring a short diameter when meeting a short diameter amount; and recording by groups and calculating the percentage. According to the determination method, a blood counting plate method is used for determining the dispersity of the dust so as to effectively avoid the error caused by human factors of smearing and measuring links in a previous method, and guarantee the accuracy of a determination result.

The invention relates to an industrial boiler slag solid waste comprehensive environment-friendly treatment method, in particular to an industrial boiler slag solid waste comprehensive environment-friendly treatment device which comprises a mounting bottom plate, supporting legs, a supporting frame, a collecting box, a feeding port, a mixing mechanism and a stirring mechanism. The method can solve the problems that in the process of an industrial boiler slag solid waste comprehensive environment-friendly treatment method, the mixing proportion and the mixing degree of dust and water mist are difficult to control, mixed dust slurry is difficult to effectively scrape, mixed loose dust slurry is difficult to convey and guide, and the adhesion and accumulation phenomena of the dust slurry are generated, the mixed dust slurry is difficult to push and flatten in the circumferential direction, and the drying efficiency and the forming effect of the slurry dust are reduced.

The invention discloses a utilization device of an integral natural gas compressor energy-saving technique. The utilization device comprises a fan blade, a driving shaft, an efficient air filter, a shaft seat, a driving pulley, a synchronous belt, a driven pulley, a circulating pump, a drain pipe, a copper pipe, fins, a pumping pipe, a water tank, an injection port and an access pipe. According tothe utilization device, the efficient air filter is installed on the right end of the fan blade, the driving shaft passes through the efficient air filter, the rotation of the driving shaft cannot beinfluenced, and additionally, a primary filter screen and an efficient filter screen are installed in the efficient air filter, so that tail gas is filtered, and mixed dust can be blocked; a dust removal mechanism is installed on the left end of the inner top of the efficient air filter, a reciprocating driving mechanism is arranged in the dust removal mechanism, and the mechanism is controlled by an independent motor, so that an inner pipe is stricken in a reciprocating mode by a bottom impact block, dust attached to the inner wall of the inner pipe conveniently falls off, and the manual cleaning is facilitated.

The invention discloses a dust-gas mixing device for semi-dry desulphurization reactors, which comprises a dust-gas mixing section, wherein the lower port of the dust-gas mixing section is a flue gas inlet, the upper port of the dust-gas mixing section is a flue gas outlet, and the cross-sectional area of the flue gas outlet is greater than that of the flue gas inlet; the right side face of the dust-gas mixing section is provided with a mixed dust inlet; and the inside of the dust-gas mixing section below the mixed dust inlet is provided with a declivitous distributing plate. The dust-gas mixing device disclosed by the invention has the advantages that flue gas is fed into the dust-gas mixing device from the flue gas inlet at the lower part of the dust-gas mixing section, and mixed dust is fed into the dust-gas mixing device from the mixed dust inlet; and under the action of the distributing plate, the mixed dust and the flue gas are excited and mixed and uniformly distributed in the whole cross section of the dust-gas mixing device, so that a flue gas purifying device keeps efficient operation.

The invention discloses a system and method for the joint production of calcium carbide, lime nitrogen and carbon black. The system includes: a calcium carbide granulation tower, in which a heat exchange area and a gas distribution area are defined from top to bottom. The granulator includes a rotating disk and a rotating shaft arranged at the lower end of the rotating disk. A carbon dioxide distribution disk is arranged below the rotating disk. An inlet of calcium carbide liquid and an outlet of carbon dioxide after heat exchange are arranged at the upper end of the heat exchange area. A second carbon dioxide is arranged in the gas distribution area. Inlet and outlet of calcium carbide particles; nitriding furnace, which defines the nitriding reaction space and gas distribution space from top to bottom. The nitriding reaction space has an inlet of calcium carbide particles and an outlet of gas after nitriding. Lime nitrogen outlet; first cyclone separator, with mixed gas inlet, first dedusted gas outlet and dust outlet containing lime nitrogen powder and carbon black; powder separation device, with mixed dust inlet, lime nitrogen powder outlet and carbon black Export.

The invention discloses a treatment method of iron and steel smelting dust mud and an iron correction material. The treatment method of the iron and steel smelting dust mud comprises the following steps that S1, dust premixing is conducted, specifically, feeding low-grade dust and high-grade dust into a premixing system to be evenly mixed, and forming the mixed dust; S2, mud cake pre-crushing andmixing: feeding the low-grade mud cake and the high-grade mud cake into a pre-crushing system for crushing and mixing to obtain a mud cake mixture; s3, strong mixing granulation: sending the mixture of the mixed dust and the mud cake into a strong mixing granulation system, and fully mixing to prepare mixed particles; sending the mixed particles into a stockpiling area, and stockpiling for 1-3 days to form an iron correction material. According to the treatment method of the iron and steel smelting dust mud and the iron correction material, the problem that mud cakes generated by low-grade dust and sewage environment treatment are difficult to treat is solved, resource utilization of the iron and steel smelting dust mud is achieved, and good economic and environmental benefits are achieved.

The invention discloses a liquid dust removal device with a regional dust removal function. The liquid dust removal device comprises a bottom liquid storage shell, wherein a bottom liquid storage space is formed in the bottom liquid storage shell; the center of the top end in the bottom liquid storage shell is provided with a main liquid inlet pipeline; and a liquid inlet is formed in the main liquid inlet pipeline. The liquid dust removal device provided by the invention can form mist-like water drops in a larger range, thereby adsorbing and dropping dust floating in surrounding air, and playing a role in dust falling; moreover, the device can reuse falling liquid, thereby improving the utilization rate of liquid and reducing the waste of water sources; in addition, the device has a solidseparation and liquid collection mechanism which can separate mixed dust and liquid and reuse liquid; and furthermore, the device is provided with a gas directional guide flow mechanism which can guide the surrounding air into mist-like liquid parts, thereby improving the dust falling quality and having strong practicability.

The invention discloses an energy-saving type diesel generator set, belongs to the technical field of power generating equipment, and solves the problems that a diesel generator set in the prior art is low in air clarity, poor in dust removing effect and poor in preheating effect are solved. The energy-saving type diesel generator group comprises a chassis, and a compartment is arranged above the chassis in a covering mode; a water tank, a diesel engine and a generator are sequentially arranged in the compartment, and an air filtering device is arranged on the diesel engine; the air filtering device comprises a drying dust-suction mechanism and a temperature pre-adjusting mechanism, the drying dust-suction mechanism comprises an air passage with a molecular sieve blocking opening, an electrostatic generating device and a dust accommodating chamber arranged at the bottom of the electrostatic generating device; and the temperature pre-adjusting mechanism is arranged on the other side of the drying dust-suction mechanism. According to the energy-saving type diesel generator set, air enters the diesel engine is purified by arranging the air filtering device, the air with particle dust is prevented from entering the diesel generators, an electrostatic producer is utilized to generate electrostatic, so that mixed dust and particles in the air are absorbed.

PURPOSE: A combination type dust collecting apparatus is provided which maintains high dust collecting performance of the dust collecting apparatus and substantially extends performance and life time of dust collecting filter at the same time. CONSTITUTION: In a combination type dust collecting apparatus in which discharge electrodes(20), collecting electrodes(30) and dust collecting filters(40) are installed inside a main body(10) having inlet(11) and outlet(12), the combination type dust collecting apparatus comprises a splitting plate(50) installed inside the main body between the inlet and outlet; a plurality of mounting holes(51) formed on the splitting plate with being spaced apart from each other in a certain distance; cylindrical dust collecting filters one end of which is insertingly adhered to the mounting holes in a lower part of the splitting plate, and which are horizontally installed in a plurality of rows; a plurality of collecting electrodes which are adhered to the lower surface of the splitting plate at both sides of the dust collecting filters with being spaced apart from each other, and which are arranged slantly and horizontally in a row; a plurality of discharge electrodes which are spaced apart from each other at an outer side of the collecting electrodes and adhered to a mounting ring(60) vertically installed inside the main body in a plurality of rows; guiding portions(70) installed at the lower surface of the splitting plate in front of the collecting electrodes and dust collecting filters corresponding to the inlet; and an outlet installed at one side of the main body in an upper part of the splitting plate.

The invention relates to a coke oven smoke dust fullytotally-closed scattered collection and centralized treatment method. A fullytotally-closed smoke dust collection cover is used for completely sealing a coke oven and accessory facilities thereof, after the coke oven escaped smoke dust collected on the top of the smoke dust collection cover is mixed with the smoke dust in a coal loading dust collection main pipe, a coke pushing dust collection main pipe and a coke discharging dust collection main pipe, the mixed dust is conveyed into a dust removal system to be centralized treated by virtueof a smoke dust conveying pipeline. By adopting the coke oven smoke dust fullytotally-closed scattered collection and centralized treatment method, the comprehensive collection of the coke oven escaped smoke dust and the integration of the coke oven dust collection system can be realized, and a complete safety facility is provided; and an actual effective solution is provided for solving the cokeoven smoke dust pollution problem which isperplexing to the enterprise.