30results about How to "Reduce solid particle content" patented technology

The invention discloses a method for pyrolyzing municipal sludge and preparing biological oil and active carbon simultaneously, which can obtain high-quality biological oil and active carbon simultaneously and solves the problem that the conventional sludge pyrolysis method only can obtain a single recycled product. In the method, sludge (A) enters a pyrolysis reactor (1) through a vane feeder (1-1); fluidized wind (B) enters the pyrolysis reactor (1) through a wind chamber (1-2) and a wind distribution plate (1-3); a cyclone separator (2) catches and collects fallen pyrolytic carbon (C) and returns the pyrolytic carbon (C) to the pyrolysis reactor (1) for circulation through a blank pipe (3), a material feedback device (4) and a material returning pipe (5); the pyrolytic carbon (C) becomes active carbon (D) after repeated circulation; and then, the active carbon (D), together with pyrolytic gas (E), enters a ceramic filter (8) and is caught and collected by the ceramic filter (8); the pyrolytic gas (E) discharged by the ceramic filter (8) enters a condenser (9); and the lower part of the condenser recovers biologic oil (H) and discharges noncondensing gas (I).

The invention discloses a novel flue gas purification tower which comprises at least two stages of purification chambers, namely, a drying purification chamber and a main purification chamber from bottom to top. The two stages of purification chambers are of urn-shaped structures with narrow upper parts and narrow lower parts and wide middle parts, the lower end of the main purification chamber extends into the drying purification chamber and is communicated with the drying purification chamber, and a guide cylinder is arranged in the center of the communication joint. An arch shoulder is formed at the wider part of the drying purification chamber, a flue gas inlet connecting pipe is arranged at the arch shoulder, and absorbent slurry spraying devices are arranged in inner cavities of themain purification chamber and the drying purification chamber. Flue gas in the purification tower moves from bottom to top, and water drops in desulfurization slurry sprayed by flue gas in the dryingpurification chamber and the main purification chamber are subjected to a continuous self-circulation process of evaporation and condensation. In the self-circulation process, complex heat transfer and mass transfer effects are generated on the water drops and the flue gas, and flue gas purification is achieved. The novel flue gas purification tower has the advantages of being simple in structure,high in flue gas purification efficiency, free of waste water, low in operation and maintenance cost and the like.

The invention discloses a treatment method for printed circuit board sewage. The method comprises the following steps: adjusting ink wastewater to be acidic, and adding a first coagulant into the inkwastewater adjusted to be acidic for full coagulation; adding a first flocculating agent into the ink wastewater in which the first coagulant is added; and performing precipitation treatment on the flocculated ink wastewater, and performing oxidation treatment on the waste liquid obtained after the precipitation treatment. By the above manner, the method provided by the invention can reduce hardening of sludge at the bottom of a precipitation tank and further reduce a chemical oxygen demand of the sewage.

The invention relates to a diseased animal pyrolysis and charring treatment system. The diseased animal pyrolysis and charring treatment system comprises a cyclone deduster, a spraying treatment tower, an oil and water separator, a combustor and a pyrolysis and charring furnace, wherein the oil and water separator comprises a conical inlet, a vertical passage, a conical outlet and a conical separating plate; a sediment chamber is arranged at the lower end of the oil and water separator, and a water drain passage is arranged at the lowermost end of the sediment chamber, and is connected with a spraying nozzle in the spraying treatment tower; a heating sleeve is arranged at the outer surface of the cyclone deduster, and a heating coil is arranged between the heating sleeve and the cyclone deduster; the combustor comprises a fuel discharge assembly, an air pipeline, a combustor wall, an igniter and a venturi pipe, the fuel discharge assembly comprises a discharge end, a fuel lifting pipe and a flame stabilizing structure, and the flame stabilizing structure is arranged at the first inside of one side of the axis of the combustor wall. The diseased animal pyrolysis and charring treatment system has the advantage that the problem of large emission amount of NOX (nitrogen oxide) is solved, the gas produced by pyrolysis and charring is sufficiently utilized, and the purifying stress of tail gas is decreased.

The invention relates to a diseased animal pyrolysis and charring treatment system. The diseased animal pyrolysis and charring treatment system comprises a cyclone deduster, a spraying treatment tower, an oil and water separator, a combustor and a pyrolysis and charring furnace, wherein the oil and water separator comprises a conical inlet, a vertical passage, a conical outlet and a conical separating plate; a sediment chamber is arranged at the lower end of the oil and water separator, and a water drain passage is arranged at the lowermost end of the sediment chamber, and is connected with a spraying nozzle in the spraying treatment tower; a heating sleeve is arranged at the outer surface of the cyclone deduster, and a heating coil is arranged between the heating sleeve and the cyclone deduster; the combustor comprises a fuel discharge assembly, an air pipeline, a combustor wall, an igniter and a venturi pipe, the fuel discharge assembly comprises a discharge end, a fuel lifting pipe and a flame stabilizing structure, and the flame stabilizing structure is arranged at the first inside of one side of the axis of the combustor wall. The diseased animal pyrolysis and charring treatment system has the advantage that the problem of large emission amount of NOX (nitrogen oxide) is solved, the gas produced by pyrolysis and charring is sufficiently utilized, and the purifying stress of tail gas is decreased.

The invention discloses a modularized garbage oxidation treatment device, and relates to the technical field of garbage treatment. The modularized garbage oxidation treatment device comprises a machine box part, wherein a dehydration and feeding module is arranged on the side portion of the machine box part; the dehydration and feeding module comprises a box body part connected with the upper portion of the case part; a material pushing plate body is arranged in the box body part; filter holes are formed in the bottom of the box body part; a shell is arranged below the filter holes; a flue gas inner side air channel is arranged in the machine box part in a surrounding mode; and an opening for flue gas to enter is formed in the lower portion of the flue gas inner side air channel. According to the device, dehydration and feeding operation can be conducted on garbage, secondary oxidation operation can be conducted on flue gas, sufficient secondary oxidation of the garbage flue gas is achieved, and the content of solid particles of carbonaceous compounds in the whole waste gas of the device is greatly reduced; and the device is further provided with a supporting bridge body, which is of a spliced bridge type structure, and a plurality of important parts are made into a split type connecting structure, so that a flue gas conveying pipeline is prevented from being violently deformed in a large-batch garbage combustion treatment process, and the service life of the whole combustion device is prolonged.

The invention relates to a pyrolytic charring apparatus for diseased livestock, comprising a primary treatment column, a cyclone dust collector, a secondary treatment column, an oil-water separator, a combustor, and a pyrolytic charring furnace; the outer surface of the cyclone dust collector is provided with a heating jacket, and a heating coil is disposed between the heating jacket and the cyclone dust collector; the combustor comprises a fuel discharge assembly, an air pipeline, a combustor wall, an igniter and a Venturi tube; the fuel discharge assembly comprises a discharge end, a fuel lifting pipe and a flame stabilizing structure, flue gas passing through the secondary treatment column enters an air passage of the combustor, air is preheated and combusted, and high-temperature flue gas is produced to externally heat the pyrolytic charring furnace. The problem of high NOx emission is solved, dust and oil are fully recycled, the blockage problem is thoroughly solved, and equipment runs more smoothly.

The invention discloses an environment-friendly nano calcium carbonate carbonation method which comprises the following steps: S1, injecting lime slurry into a reaction kettle, stopping feeding when the feeding amount is 1/5-2/5 of the volume of the reaction kettle, and adjusting the rotating speed at the same time; introducing kiln gas into the reaction kettle, and discharging reaction tail gas after treatment; when the pH value of the slurry in the reaction kettle is 7.5-8.0, stopping air intake, and adjusting the rotating speed; and s2, injecting lime slurry into the reaction kettle containing the seed crystal, stopping feeding when the feeding amount reaches 4/5 of the volume of the reaction kettle, adjusting the rotating speed, stirring and aging; and introducing the kiln gas again, and when the pH value of the slurry in the reaction kettle is 7 and the slurry at the upper part and the lower part in the reaction kettle has no relative temperature difference, enabling the carbonation reaction to reach the end point. According to the method, the nano calcium carbonate with the average particle size of 40-100 nm is stably produced, and meanwhile, in the production process, the generated tail gas is treated and then discharged, so that the atmosphere is hardly influenced, and the environmental protection requirement is met.

The invention discloses a dry type pure suction sweeper truck which comprises a chassis and a dustbin body, the chassis is provided with side suction devices located on the two sides of the middle section of the chassis, a rear suction device located on the tail section of the chassis and a pneumatic conveying device located on the chassis. The pneumatic conveying device is positioned in an area between the vehicle head on the chassis and the dustbin; a multi-stage dry type dust removal device is arranged at the airflow input end of the pneumatic conveying device, and the pneumatic conveying device communicates with the inner cavity of the dustbin through the multi-stage dry type dust removal device so that vacuum negative pressure is formed in the inner cavity of the dustbin, and dust particles in the dustbin can are prevented from entering the atmosphere through the pneumatic conveying device; the side suction device and the rear suction and pickup device are independently arranged and communicate with the interior of the dustbin so as to suck and pick up garbage on the road surface through vacuum negative pressure in the dustbin. The road edge garbage can be effectively swept, operation flying dust can be effectively controlled, the content of solid particles in exhausted gas is small, and the environmental protection requirement can be met.

The invention relates to a standard brick preparation process and a standard brick, and relates to the field of building bricks and preparation thereof. The process includes the steps of: 1. making agreen brick; 2, spraying a surface treatment liquid I accounting for 1-5wt% of the mass of the green brick to the surface of the green brick; wherein the surface treatment liquid I is prepared from the following components by mass percentage: A. 5-8% of inorganic mineral powder with a particle size of less than or equal to 1.5mm, B. 3-5% of a water-soluble polymer, C. 1.5-3.0% of fumed silica, andD. the balance water; the inorganic mineral powder is a mixture of nano aluminum oxide, cryolite powder and mica powder; and the water-soluble polymer is a mixture of polyvinyl alcohol and water-soluble chitosan; 3. under the condition of 70-90DEG C, drying the green brick sprayed with the treatment liquid I; and 4, performing roasting. The standard brick preparation process provided by the invention has the advantages that the content of solid particles in the brick making waste gas can be effectively reduced and the emission of solid particles is reduced from the source, and the prepared standard brick has the advantages of excellent physical and mechanical properties and good permeation resistance.

The invention relates to a pyrolytic charring apparatus for diseased livestock, comprising a primary treatment column, a cyclone dust collector, a secondary treatment column, an oil-water separator, a combustor, and a pyrolytic charring furnace; the outer surface of the cyclone dust collector is provided with a heating jacket, and a heating coil is disposed between the heating jacket and the cyclone dust collector; the combustor comprises a fuel discharge assembly, an air pipeline, a combustor wall, and an igniter; the fuel discharge assembly comprises a discharge end, a fuel lifting pipe and a flame stabilizing structure, the flame stabilizing structure is disposed on a first inner side of one side of the axis of the combustor wall, flue gas passing through the secondary treatment column enters an air passage of the combustor for combusting reaction, and high-temperature flue gas is produced to externally heat the pyrolytic charring furnace. The problem of high NOx emission is solved, dust and oil are fully recycled, the blockage problem is thoroughly solved, and equipment runs more smoothly.

The invention discloses an energy-saving cooking range. The energy-saving cooking range comprises a fuel cavity, a main combustion chamber, a waste heat recovery chamber, a screw feeder, a driving device and a fan, wherein the main combustion chamber is internally provided with a fire scattering basin used for containing a combustion medium, the screw feeder is driven by the driving device to run, the bottom of the fuel cavity communicates to the head end of the screw feeder, the tail end of the screw feeder communicates to the inner wall of the fire scattering basin, the bottom of the fire scattering basin is provided with multiple vent holes, an air outlet of the fan communicates to the vent holes, a first through hole is formed between the main combustion chamber and the waste heat recovery chamber to make the main combustion chamber communicate with the waste heat recovery chamber, and an air outlet is formed in the waste heat recovery chamber. The energy-saving cooking range is used for solving the problems that an existing cooking range cannot fully utilize energy, and the flame is nonuniform and difficult to control in the burning process.

The invention relates to a treatment system for a concentration tank of iron ore concentrates. The treatment system comprises the concentration tank, a concentration tank overflow tank, a central distribution barrel and ore concentrate pipelines, wherein output ports of the ore concentrate pipelines are connected with the central distribution barrel; the concentration tank is arranged at the outer side of the central distribution barrel; the concentration tank overflow tank is arranged at the outer side of the concentration tank; the ore concentrate pipelines are composed of a plurality of thin ore concentrate pipelines and a plurality of thick ore concentrate pipelines; the plurality of thin ore concentrate pipelines are communicated with the plurality of thick ore concentrate pipelines through a fed ore distribution box; the number of the thin ore concentrate pipelines is larger than that of the thick ore concentrate pipelines; and one ends of the thick ore concentrate pipelines are connected with the central distribution barrel, and the other ends of the thick ore concentrate pipelines are connected with the fed ore distribution box. The ore concentrate pipelines are composed of the thin ore concentrate pipelines and the thick ore concentrate pipelines, so that the ore feeding flow rate is reduced to ensure that the content of solid particles in overflow water cannot exceed the standard under the condition that the concentration tank operates over a design, and furthermore, the treatment capacity of the concentration tank is enhanced, and the content of the solid particles in the overflow water is reduced.

The invention discloses an anti-blocking cutting fluid filtering device of a boring-milling machine. The device comprises an input liquid pump, a first filter tank, a second filter tank and an outputwater pump, the water outlet of the input liquid pump is connected with a water conveying pipe; the water conveying pipe is inserted into the first filter tank and extends to the bottom of the first filter tank; a drainage notch is formed in one side of the top end of the first filter tank; a drainage diversion trench is connected to the drainage notch; the tail end of the drainage diversion trench communicates with the second filter tank; a first baffle, a second baffle and a third baffle are sequentially arranged in the second filter tank; a first electromagnetic grid plate, a second electromagnetic grid plate and a third electromagnetic grid plate are correspondingly mounted at the tops of the first baffle, the second baffle and the third baffle respectively, a water outlet is formed inthe side, away from the drainage diversion trench, of the bottom of the second filter tank, and a water pumping pipe is connected between the water outlet and the output water pump.

The invention relates to a double-working-condition gas generator propellant grain. A gas generator propellant is contained in a wrapping sleeve. The middle of the surface of the gas generator propellant is provided with a sharp combustion supporting groove. An inner ring combustion supporting groove and an outer ring combustion supporting groove are sequentially arranged outside the sharp combustion supporting groove. A lining layer is arranged at the contact portion between the side face of the gas generator propellant and the wrapping sleeve. The double-working-condition gas generator propellant grain starts combustion on the surface of the gas generator propellant and the surface of the combustion supporting groove at the same time, the combustion surface is large in the early stage, the combustion surface tends to be reduced after 12 seconds, and the combustion surface tends to be stable after 16 seconds. The double-working-condition gas generator propellant grain is used for a guided missile servo power device and has the advantages of being low in combustion temperature, changeable in combustion surface, capable of achieving double-working-condition pressures of two-graded charge through single-combustion-rate charge and the like.

A new heavy oil suspended bed hydrocracking process, the hydrocracking reactor used in the process is a full back-mixing loop reactor, and a fixed-bed hydrofinishing reactor matched with it is attached. The catalyst used in this process is a catalyst compounded by iron-nickel-manganese-molybdenum-cobalt and other multi-metal water-soluble salts, and its co-catalyst is a water-soluble sulfur-containing compound. Multiple cyclone separators are installed in the product separation system, thereby greatly reducing the solid content of circulating tail oil and vacuum tail oil. The process also has a solvent separation system, and the residue obtained from the bottom of the cyclone separator can be further processed for solvent treatment and catalyst recovery. This process has a high conversion rate and distillate oil yield and very good naphtha and diesel products for the treatment of inferior heavy oil and its atmospheric pressure and vacuum residue.

The invention relates to consumable-free particle specified flue gas solid particle treatment equipment. The equipment comprises a box body provided with a gas inlet and a gas outlet formed in two sides of the body, respectively; a mechanical collision assembly, a gas flow collision assembly, a spraying assembly, a specified particle interception assembly and a gas-liquid separation assembly are sequentially arranged on one side, between the gas inlet and the gas outlet, in the box body; the mechanical collision assembly comprises a collision frame with vent holes formed in two sides of the collision frame; vent holes in the two sides are formed in a staggered manner; a plurality of flow guide profiles are arranged in the gas flow collision assembly; the spraying assembly comprises a spraying pipe and a spraying head, wherein the spraying head faces the gas inlet; the particle interception assembly at least comprises one intercepting pore plate; and the gas-liquid separation assembly comprises a gas-liquid separation net. The consumable-free specified particle flue gas solid particle treatment equipment is free of consumables, can save cost, is thorough in flue gas treatment, and can achieve up-to-standard emission.