46results about How to "Thorough descaling" patented technology

The invention belongs to the field of steel strip production, and particularly relates to an environment-friendly thorough method for removing oxide, namely scale, on the surface of a steel strip with a fine condition. The method includes the steps: A, feeding the steel strip into a scale breaking device to break the scale on the surface of the steel strip; B, feeding the steel strip treated in the step A into a sand blaster, blasting steel shots, high-pressure water and high-pressure air to the surface of the steel strip, and further breaking and washing the scale on the surface of the steel strip; C, feeding the steel strip treated in the step B into a brush roll device, polishing and brushing the surface of the steel strip and further removing residual scale and smoothening the surface of the steel strip; D, feeding the steel strip treated in the step C into a strip brush device and brushing off cuttings and remaining scale on the upper surface of the steel strip after polishing and brushing; E, feeding the steel strip treated in the step D into a cleaning device and washing the surface of the steel strip with clear water; and F, rolling the cleaned steel strip by the aid of a gripping roll.

The invention relates to a water heater capable of being descaled. The water heater capable of being descaled comprises a support, a water storage tank, transparent pipes and heat collection pipes. Each heat collection pipe is divided into an inner layer and an outer layer. Each outer layer is a heat absorbing pipe made from a hard material. Each inner layer is a spiral pipe formed by spiraling and curling a long-strip elastic piece. The heat absorbing pipes extend into the water storage tank. The upper end of each spiral pipe is fixed to the water storage tank, and the lower end of each spiral pipe is installed on a rotary plate. Through holes are formed in the rotary plates. A scale accumulation cavity is further fixed to the lower portion of each rotary plate. A smashing rod is further arranged on the axis of each heat collection pipe. One end of each smashing rod is installed on the water storage tank, and the other end of each smashing rod is installed on the support. Smashing pins extending in the radial direction of the smashing rod are further distributed on the periphery of each smashing rod. The length of the smashing pins is smaller than the radius of the corresponding heat collection pipe. The water heater capable of being descaled is ingenious in structure and capable of being descaled completely and efficiently, and meanwhile water pipe blockage and human body harms are not caused.

The invention relates to a rotary hearth furnace smoke comprehensive treatment system and method. The treatment system comprises a rotary hearth furnace, a high-temperature smoke outlet of the rotaryhearth furnace is connected with a waste heat boiler, an outlet of the waste heat boiler is connected with an air heat exchanger, the air heat exchanger is connected with a bag type dust collector, anoutlet of the bag type dust collector is connected with a cyclone dust collector through a pipeline, and the cyclone dust collector is connected with a chimney. A frequency-adjustable high-sound-intensity acoustic wave soot blower located on the air heat exchanger can conduct effective blockage removing and descaling on the air heat exchanger; after zinc-containing metal dust and other metal dustenter the bag type dust collector, ultrafine particles are aggregated into large particles through a first acoustic wave aggregation device, and the metal dust recovery efficiency of the bag type dust collector is improved; the bag type dust collector is further subjected to real-time blockage removing, the service life of the bag type dust collector is prolonged, the cost is reduced, and high-sound-intensity acoustic waves conduct collaborative efficiency improving and descaling on the bag type dust collector in the rotary hearth furnace smoke system; and the ultralow emission requirement for smoke of the rotary hearth furnace is met on the front section of the chimney through an acoustic wave aggregation dedusting device.

A boiler descaling agent comprises the following raw materials in parts by weight: 80 to 100 parts of water, 10 to 20 parts of benzotriazole, 30 to 60 parts of acetic acid, 5 to 10 parts of lauryl sodium sulfate, 4 to 15 parts of thiourea, 3 to 8 parts of ammonium fluoride and 0.2 to 0.5 part of spice. According to the invention, installation and operation on a cleaning site are simplified and facilitated; the corrosion inhibition efficiency is high, the cleaning speed is fast, washing waste liquid treating is simple and convenient, and pre-filming after washing is facilitated; equipment safety is guaranteed, the descaling is thorough and the corrosion rate is low; corrosion and poisonousness to operating personnel are basically avoided, and the operation is simple, safe and reliable; meanwhile, the boiler descaling agent is free from toxic and harmful substances, can be discharged after simple neutralizing treatment, and is safe and environment-friendly; the boiler descaling agent adopts solid components, is safe, simple and convenient to use, has no harms to human bodies, is non-corrosive to equipment and has no influences on the environment.

The invention discloses scale removal equipment for a plate heat exchanger. The scale removal equipment comprises a plate heat exchanger body (15) and an electric control device (7), wherein the plate heat exchanger body (15) is respectively connected with an ultrasonic generating device (8) and a gas pulse generating device (10); and the electric control device (7) is connected with an energy transducer (11) and the gas pulse generating device (10). The scale removal equipment can be used for rapidly and thoroughly removing scales.

The scavenger specially for lane in expressway toll gate consists of: smoke-free kerosene with flash point over 50 deg.c 93 wt%; industrial lauric acid 2 wt%; industrial triethanolamine 1.28 wt%; industrial banana essence 0.58 wt%; and industrial cresol 3.14 wt%. It has fast dirt dissolving speed, complete dirt eliminating effect, no corrosion to road surface and low cost.

The invention discloses a cleaning device for a plate heat exchanger. The cleaning device for the plate heat exchanger comprises the plate heat exchanger (15) and a control system (7). The plate heat exchanger (15) is connected with a reaction still (8) and an ultrasonic reaction device (10). The control system (7) is connected with an energy converter (11) and the ultrasonic reaction device (10). The cleaning device for the plate heat exchanger can remove scale quickly and thoroughly.

The invention discloses a shell-and-plate blast furnace evaporation air cooling system using a soft water closed recirculation cooling system and a plate scale treatment method thereof and belongs to the technical field of blast furnace iron making production. The shell-and-plate blast furnace vaporation air cooling system using the soft water closed recirculation cooling system comprises a base, a shell body which is over the base and is fixedly connected with the base, a cooling plate set which is a vertical layered layout is arranged in the shell body in a fixation mode, and induced air cooling towers which are connected with the shell body in a fixation mode and right above the shell body. Through replacing an induced air motor with an air suction function with the induced air cooling towers, installed gross and production running cost are lowered, there is no need to frequently change and maintain a soggy and fragile fan motor, and the induced air cooling towers are capable of being at a normal working state for a long time and saves electric energy and water consumption of refrigerant water. Physical descaling can be conducted periodically in the whole operational process of the system through the plate scale treatment method, and also thorough descaling can be conducted in a stopping process. The induced air cooling towers are flexible and mobile and through in treatment effect. The heat exchange and cooling effects of the whole system are improved, and the continuous working period and service life are prolonged.

The invention belongs to the technical field of oil-water well casing descaling, and particularly relates to a novel hydraulic jet unblocking device. The novel hydraulic jet unblocking device comprises a filter, a short pipe, a barrel, a motor, a reciprocating motion mechanism and a rotating disc, wherein the filter and the barrel are fixedly connected to the upper end and the lower end of the short pipe respectively, the motor is fixedly installed in the barrel through a motor support, the power input end of the reciprocating motion mechanism is connected with an output shaft of the motor, and the power output end of the reciprocating motion mechanism is fixedly connected with the rotating disc. According to the device, compared with the prior art, a brand-new descaling and unblocking mode, and the device has the advantages of simple construction process, low construction cost and large treatment depth; and meanwhile, an emulsifier is rotationally sprayed, so that jet flows of the emulsifier impact scales on the inner wall of a casing in the radial direction and the tangential direction, the scales are easier to remove, and a descaling effect is effectively improved.

The invention discloses a scale inhibition method for a boiler, and relates to the technical field of industrial boilers, and the scale inhibition method comprises the following steps: extracting a small amount of boiler water at a boiler dosing port in advance, collecting the index information of the boiler water, and obtaining the concentration of an added scale inhibitor; a scale inhibitor is added with the outlet end of a deoxidizing opening of the boiler as a dosing opening, and the scale inhibitor mainly comprises pure water, sodium alginate, organic phosphate, trisodium phosphate, sodium hydroxide, a deoxidant and a metal corrosion inhibitor; the action condition of the scale inhibitor is monitored, and the concentration of the scale inhibitor is adjusted. The corrosion and scale inhibitor has excellent corrosion and scale inhibition performance, can form a layer of protective film on the metal surface, greatly reduces the corrosion rate, and has the advantages of simple operation, thorough descaling, convenient cleaning, safety to equipment, safety and environmental protection.

The invention relates to a method for evaluating an anti-scaling agent for a crude oil gathering pipeline in a laboratory. The invention belongs to the technical field of laboratory evaluation. The method for evaluating the anti-scaling agent for the crude oil gathering pipeline in the laboratory is characterized by comprising the following technological processes: (1) putting an on-site oil and water sample into a circulator with a heater and a stirrer, starting the stirrer and the heater and heating to the on-site working condition temperature; (2) weighing a scale sample, putting the scale sample into a filtering box and fixing the filtering box in a circulating pipeline; (3) adding the anti-scaling agent into the oil and water sample of the circulator; (4) starting a circulating pump, circulating and accumulating the experimental time; (5) after the experiment, taking out the filtering box in the circulating pipeline, weighing the scale sample in the filtering box and calculating the loss rate of the scale sample. The method has the advantages that the operation is simple, the on-site process working condition can be simulated maximally, the obtained experimental result is more accurate, and the anti-scaling agent with good effect obtained by evaluation is more suitable for on-site use.

The invention relates to a high tower type geothermal production well and a using method thereof, and belongs to the field of geothermal energy development. The high tower type geothermal production well comprises an inner shaft and an outer protection structure, wherein the inner shaft is connected with a production well shaft through an annular connecting assembly, the interior of the outer protection structure wrapped around the inner shaft is filled with a thermal insulation material, the outer protection structure comprises two half bodies which are oppositely arranged, and the half bodies can move through sliding rails arranged on the ground surface. According to the high tower type geothermal production well and the using method thereof, under the assistance of hoisting equipment, the inner shaft is exposed through movement of the outer protection structure, the inner shaft is replaced with a prepared replacement sleeve, after replacement is completed, the outer protection structure is closed again, and normal production can be rapidly recovered; and after normal production is recovered, calcium scale removal operation can be carried out on the replaced shaft with calcium scales attached to the inner wall on the ground surface. According to the high tower type geothermal production well and the using method thereof, the duration of production halt caused by descaling operation can be greatly shortened, meanwhile, the calcium scale removing effect is improved, the calcium scale removing speed is increased, and high economic benefits are achieved.