33results about How to "Energy saving treatment" patented technology

The invention relates to the technology field of processing and recycling of casting moulding sand and in particular relates to a moulding sand cooling dedusting tower as well as a casting moulding sand processing device and a using method thereof. The moulding sand cooling dedusting tower comprises a vertical box body, a cooling box, a water inlet pipe, a water outlet pipe, a dedusting pipe and an air pipe, wherein a sand inlet is arranged at the upper end of the vertical box body; the cooling box of which the upper surface is an oblique surface is fixed in the inner cavity of the vertical box body; the upper end of the cooling box is a moulding sand flow-in end and communicated with the sand inlet; the lower end of the cooling box is a moulding sand flow-out end; and a sand outlet is arranged at the exterior of the vertical box body at the lower end of the corresponding cooling box and communicated with the moulding sand flow-out end. The device provided by the invention has a reasonable and compact structure, relatively large plastic and iron particles are separated through a filtering block net, small iron impurities are separated by a magnetic separation conveyor, and fine screening and cooling dedusting of the moulding sand are realized through the moulding sand cooling dedusting tower, therefore, the moulding sand cooling dedusting tower can be used for processing the casting moulding sand in an energy-saving, efficient and high-quality mode, has high working efficiency, is economical and environmentally-friendly, and can be used for reducing the labor intensity, the potential safety hazard and the labor cost.

The invention discloses an alkaline chloride zinking primer, wherein the primer comprises following components based on mass percent: 9.6% to 14.5% sodium hydroxide, 5.0% to 7.0% potassium chloride, 0.6% to 0.9% zinc oxide, 0.35% to 0.45% DPE-3 adjuvant, 0.35% to 0.45% ZB-80 lustre-coating agent and 76% to 84% water. The preparation method of the alkaline chloride zinking primer is provided. The invention has advantages that the plating layer has high combination ratio, high depositing speed, bright and fined plated products without brittleness, coarse skin and color change when baking temperature is at 250 deg. C, great anti-impurity capacity, without fogging and bubbling phenomena. The salt spray test uses 150 hours to 200 hours with low cost. The invention saves energy and is easy to processes waste.

The invention discloses a multi-directional selective noise reduction system and method for a space environment, comprising a noise detection module, a noise processing module, a central control system, a human voice elimination module, and a noise reduction module. The noise is detected, the noise processing module is used to process the noise detected by the noise detection module, the central control system is used to control the entire multi-point noise reduction system, and the human voice elimination module is used to eliminate noise The human voice in the noise detected by the detection module is identified and eliminated, and the noise reduction module is used to reduce the noise detected by the noise detection module. The present invention is scientific and reasonable, safe and convenient to use, avoids the operation of noise reduction processing for each noise signal, reduces the steps of noise reduction for multiple noise signals one by one, and makes the multi-point noise reduction system realize effective noise signal reduction. Differential noise reduction makes the multi-point noise reduction system more intelligent and humanized.

The invention relates to a method for treating greenhouse gases produced by the industries of industry, dining halls, power stations and the like. The treatment method comprises that: the greenhouse gases are recycled into a gas burner (2) by a recycling device (1) for burning treatment. By the treatment method, the problem in the prior art that the greenhouse gases are incompletely treated and finally emitted to the air to pollute the environment and cause the rapid intensification of global warming is solved; combination simplicity and simplicity and convenience of mounting are achieved; when the method is used, conventional facilities are not required to be replaced, so the method is low in cost and convenient to popularize; and when the method is used, the recycled greenhouse gases are utilized as combustion improvers, so more energy can be saved.

The invention provides a method for removing organic matters and carbon dioxide in tail gas by using carbonic ester produced from carbon dioxide and fatty alcohol. The method comprises the following steps of: mixing raw materials such as methanol with urea; entering a carbonic ester synthesis unit to obtain a carbonic ester product; feeding synthetic tail gas into a tail gas recovery system; removing organic matters and carbon dioxide; and returning an obtained methylamine solution and liquid ammonia into a urea synthesis unit. According to the method, ammonia consumed by synthesizing urea can be completely replenished through a recovery alcoholysis reaction. Raw materials consumed in the method are mainly cheap carbon dioxide, fatty alcohol and the like, a produced product is carbonic ester with high added value, and the method can be applied to industrial production.

The invention discloses a low temperature methanol wash method and equipment, wherein the method comprises an absorption step, a desorption step and a methanol heat regeneration step. The absorption step further comprises: adopting first lean methanol solution to absorb virgin gas for the first time, and cooling to form first rich methanol solution; forming first gas and first liquid after gas-liquid separation; adopting second lean methanol solution to absorb the first gas for a second time, and forming second absorbed rich methanol solution after the second lean methanol solution is absorbed for a second time; carrying out flash distillation on the second absorbed rich methanol solution to form second gas and flash distillated rich methanol solution; and adopting third lean methanol solution to absorb the second gas for a third time, forming third gas and reflux rich methanol solution, and respectively recycling the third gas and the reflux rich methanol solution. The method can be high-efficient, flexible, safely and energy-saving to treat carbonyl gas with different pressures, temperatures, moisture contents and sulphur concentrations.

The invention provides a falling-film air stripping device with a flash evaporation function and belongs to the field of devices for chemical clean production. The falling-film air stripping device comprises a flash chamber and a falling-film air stripping tower, and also comprises a gas stripping chamber. The falling-film air stripping device is successively provided with the flash chamber, the falling-film air stripping tower and the gas stripping chamber from top to bottom. A feed inlet is arranged at the side face of the flash chamber. The bottom of the gas stripping chamber is provided with a feed liquid outlet. One end of a U-shaped material transfer tube is communicated with the flash chamber, the other end of which is communicated with the falling-film air stripping tower. A gas phase outlet is positioned at the top of the flash chamber. The falling-film air stripping tower is communicated with a feed liquid receiving tank. Gas which goes out of the falling-film air stripping tower enters a vacuum condensation system. By integrating flash evaporation and falling-film air stripping into one equipment, the device is used for removing halogenated hydrocarbon from saponification raffinate of vinylidene chloride without external heat energy, and the saponification raffinate also can be cooled. In addition, gas quantity in the air stripping process is low.

The invention relates to a bubbling cavitation method for degrading organic pollutants in wastewater to solve the problem of water pollution. The technical scheme adopted in the invention comprises the following steps of: adding glass beads into a degradation device; adding wastewater containing organic pollutants into the degradation device with the wastewater level being over the glass beads; letting a gas enter from the bottom of the degradation device, and reacting for 3-5 hours. By the combined action of glass beads and air bubbling, organic pollutants such as acid red B in wastewater can be effectively degraded with the degradation rate being more than 97%. The bubbling cavitation method provided by the invention is a high efficient and energy-saving sewage processing method with nosecondary pollution, requires simple equipment, has practical values, and can be utilized to process various wastewaters on a large scale.

The invention relates to a system for comprehensive utilization of floater pretreatment and a cement kiln. The invention relates to the system for comprehensive utilization of floater pretreatment and the cement kiln, which comprises a crusher, a screening machine, a material drying bed, a blower fan, a feeding bucket, a first conveyer, a magnetic separator, a weigher and a second conveyer; an outlet of the crusher is connected with an inlet of the screening machine by a conveying apparatus, an outlet of the screening machine for a qualified product is connected with the inlet of the materialdrying bed; an inlet terminal of the blower fan is connected with an exhaust gas chimney of a kiln head or a kiln end of the cement kiln by pipelines, an output terminal of the blower fan is connected with a hot air inlet of material drying bed by pipelines; an outlet of the material drying bed is connected with an inlet of the feeding bucket, an outlet of the feeding bucket is connected with theweigher by the first conveyer, the magnetic separator is arranged on the first conveyer; the weigher is connected with an inlets of the decomposing furnace by the second conveyer, an outlet of the conveyer pipe is connected with an input of the decomposing furnace of the cement kiln. The system realizes safe, harmless, recycling, energy saving disposal and utilization of the floater.

The invention relates to an energy-saving processing system for vapor of an LNG receiving station. A high pressure LNG transmission branch is separated from a high pressure LNG outer transmission line of an existing natural gas transmission system of the LNG receiving station; the output end of the high pressure LNG transmission branch is connected with the input end of a gas-gas ejector mixer; the output end of the gas-gas ejector mixer is connected with the input end of a short distance direct sending pipe of a natural gas user; the gas-gas ejector mixer is also provided with a low pressure suction inlet; the low pressure suction inlet is connected with the output end of a vapor-discharging total pipe of an LNG storage tank; and the vapor-discharging total pipe is provided with a vapor flow control valve that can be adjusted according to pressure conditions of the LNG storage tank. Low pressure boil-off gas discharged by cooling the LNG storage tank is absorbed by using the pressure energy of the output high temperature LNG; full mix and energy exchange between the high pressure LNG and the low pressure boil-off gas are completed in the gas-gas ejector mixer; the mixed gas is output to meet requirements of users of medium-high pressure natural gas. The energy-saving processing system is suitable for vapor treatment of large and medium LNG receiving stations with different gas state outer transportation pressure requirements.

The invention discloses a manganese-oxygen composite material for efficiently removing VOCs, a preparation method and application thereof. The specific steps of the preparation method are as follows: the manganese-oxygen composite material doped with Mg and supported on carbon nanotubes prepared by the hydrothermal method is mixed with quartz sand, put into a microwave device, and VOCs gas is introduced , for the removal reaction. Among them, the manganese-oxygen composite material is not only doped with Mg but also supported on carbon nanotubes. The invention has the advantages of fast catalytic rate, high catalytic efficiency, low catalyst cost, simple catalyst synthesis method, strong catalyst stability, no secondary pollution and no need for reprocessing.

The invention discloses equipment for treating burning tail gas of pesticide package waste. The equipment comprises an atomizing nozzle, a venturi tube mixer, a barrel and a cone, wherein the venturi tube mixer is vertically arranged; an upper air inlet end of the venturi tube mixer is connected with a smoke pipeline; the atomizing nozzle for atomizing alkali liquor is arranged at a central position of the smoke pipeline in front of the upper air inlet of the venturi tube mixer; the lower part of the venturi tube mixer is arranged in the barrel and is positioned at a central position of the barrel; the upper end of the barrel is closed; the upper part of the barrel is provided with a gas outlet; the lower end of the barrel is connected with the cone.

The invention relates to a reactor for direct oxidation treatment of sewage, especially an improved microdynamic oxidation reactor for sewage treatment. Bamboo charcoal is used as the carrier, modified by surface modification, and sintered to prepare a large-area particle catalytic reaction layer, which is respectively loaded into the pre-oxidation chamber, main oxidation chamber and deep oxidation chamber of the oxidation reactor for three-stage oxidation treatment and decomposition. The oxidation reactor of the present invention is aimed at the special conditions of large temperature difference in seasonal climate changes and unstable water volume, which can be immediately opened and closed to treat sewage. Using this technical device can realize low energy consumption and intermittent operation, and achieve effective treatment with high efficiency and energy saving. So as to achieve the purpose of protecting the environment.