33results about How to "Reduce the probability of secondary pollution" patented technology

The invention discloses a method for processing copperish electroplating sludge. The method comprises steps of a. adding dilute sulfuric acid into the copperish electroplating sludge for leaching, then filtering the leached sludge, reserving the leach liquor for replacement; b. adding scrap iron into the leach liquor, stirring, then taking out unreacted scrap iron, filtering so as to obtain copper sponge powder; c. putting the copper sponge powder into dilute acid and soaking, then filtering so as to obtain copper powder. The method has the characteristics of simple steps, short reaction time and high efficiency, the recovery rate of copper in the electroplating sludge reaches 95%, and secondary pollution rate to environment is lowered.

The invention discloses a high-quality harmless utilizing method of a hyperaccumulator. The high-quality harmless utilizing method comprises the following steps: smashing and drying the hyperaccumulator, and sieving through a sieve of which the density is 100 meshes; carbonizing at a carbonization temperature being 450 to 550 DEG C and in carbonization time being 25 to 35 minutes, thus obtaining acarbonized material; immersing the carbonized material by using an alkaline solution of which the mass percentage is 45 to 55 percent; drying at 90 to 120 DEG C for 10 to 15 hours after immersing for20 to 28 hours, thus obtaining an amorphous particulate carbon block; activating the amorphous particulate carbon block into an activated carbon coarse product under a nitrogen atmosphere, wherein the activating temperature is 750 to 850 DEG C, and the activation time is 25 to 35 minutes; drying for 10 to 15 hours, thus obtaining metal-containing activated carbon with a catalytic effect; grindingthe activated carbon, thus obtaining an activated product HA-AC; adding 5 to 15 percent of the activated carbon product HA-AC to biomass or other reaction raw materials; putting a swelled material ina supercritical reaction kettle, and carrying out sealing reaction at the reaction temperature being 380 to 600 DEG C and the reaction pressure being 22.1 to 30 MPa, thus obtaining a hydrogen-rich gas. The high-quality harmless utilizing method disclosed by the invention has the advantages that additional metal loading is not required, a complicated preparation technology and a longer preparationperiod are not required, heavy metal can be fully stabilized, and secondary pollution can be avoided.

The invention discloses a high-purification automatic impurity-removing and tea-sterilizing process comprising the following steps: charging, fine processing, weighting and packaging. In the fine-processing step, tea is primarily screened by adopting a winnowing mode and residual impurities in the tea are removed by using a manual-selection mode; aroma-extracting and sterilizing working proceduresare set after the manual-selection step: tea moisture is removed, tea aroma is improved and bacteria in the tea are killed; far infrared rays are adopted to bake and heat the tea so as to greatly improve the tea quality; meanwhile, the far infrared rays have the thermal effect and the biological effect, and keep the activity of the tea and the nutrition and the luster of food to a maximum extent;and the automatic processing degree is high. The invention has the advantages of intelligently controlled technological process, compact connection, strong continuity, effectively controlled secondary pollution, little manpower consumption and high tea-making efficiency.

The invention discloses an automatic packing machine for plastic oil bottles, and relates to the field of packing equipment. The packing machine comprises a rack and a bottle conveying belt, wherein acounting device is arranged on one side of the bottle conveying belt, a bottle pushing plate is arranged on one side of the bottle conveying belt, a bottle placing plate is horizontally arranged on the other side of the conveying belt, a bottle pushing mechanism is arranged on the side, away from the bottle placing plate, of the bottle pushing plate, a rectangular first baffle is arranged at theposition, located at a discharging end of the bottle conveying belt, of the rack, a second baffle is arranged on the side, away from the first baffle, of the bottle placing plate, a bottle conveying plate parallel to the bottle pushing plate is arranged above the bottle placing plate, a lifting mechanism for driving the bottle conveying plate to ascend and descend is arranged above the bottle conveying plate, a bottle conveying mechanism is further arranged above the bottle conveying plate, the bottle conveying plate and the bottle pushing plate move in the same direction, a bagging mechanismis arranged at a discharging end of the bottle placing plate, a material collecting table is horizontally arranged on the side, away from the bottle pushing plate, of the bottle placing plate, a heatsealing mechanism used for sealing is arranged between the bottle placing plate and the material collecting table, and the upper surfaces of the bottle conveying belt, the bottle placing plate and thematerial collecting table are coplanar. The packing machine has the advantage of high packing efficiency.

The invention discloses a brick tea automatic blending control system and method. The system comprises a PLC (programmable logic controller), a console, an inductor group, a tea weighing module group, an analog quantity input module group, an analog quantity output module group, a vibration tea conveying module group, a tea pouring module, a mold conveying module and an alarm module. According to the method, the system is powered on; the console sends starting signals; equipment resetting and initialization operation are carried out; the residual quantity of tea leaves is detected; if the residual quantity of the tea leaves is lower than a threshold value; a tea storage box performs discharging operation until the residual quantity of the tea leaves is higher than the threshold value; the vibration module group is controlled to vibrate and convey the tea leaves; the tea leaves are dynamically weighed; after the weight of the tea leaves meets a set target value, a mold is conveyed to a designated tea leaf pouring site, and the tea leaves are poured into the mold; the mold is conveyed to a next designated tea leaf pouring site, and another tea leaf blending process is carried out; and after all tea blending processes required by brick tea are finished, the mold is conveyed to a next tea making working area. According to the brick tea automatic blending control system and method of the invention, the automatic control of brick tea blending is realized, and blending weight accuracy and blending efficiency are improved.

The invention discloses a liquid cooling heat dissipation system of a focused ultrasound therapeutic instrument. The system comprises a cooling water tank, a liquid level monitoring unit, a water supply and drainage unit, a flow monitoring unit, a cooling liquid path switching unit, at least two groups of cooling liquid path units and an MCU, the liquid level monitoring unit is used for monitoringthe liquid level height of the cooling liquid; the flow monitoring unit is used for monitoring the flow of the cooling liquid; the cooling liquid switching unit is used for switching the two groups of cooling liquid path units; wherein the water supply and drainage unit and the flow monitoring unit are respectively connected with the cooling water tank, the cooling liquid path switching unit is respectively connected with the inlet end of the cooling liquid path unit and the flow monitoring unit, the outlet end of the cooling liquid path unit is connected with the cooling water tank, and theliquid level monitoring unit, the water supply and drainage unit, the flow monitoring unit and the cooling liquid path switching unit are respectively connected with the MCU. Compared with the prior art, the working intensity of a user can be reduced, and the reliability and the operation safety of the liquid cooling heat dissipation system are improved.

The invention discloses an air purification device based on a low-temperature plasma technology, and belongs to the field of air purification. According to the the scheme of the air purification device based on the low-temperature plasma technology, a fan rotates after being powered on, and air forms circulating air flow through a circulating air inlet hole and an exhaust ring to enable a purification air duct to rotate, suspended substances in the air are prevented from adhering to the inner wall of the shell so that the air quality is improved; the cold catalyst layer performs catalytic reaction on harmful substances in the air at normal temperature to generate water and carbon dioxide, the suspended substances and the harmful substances are mixed with the water, the weight of the suspended substances and the harmful substances is increased, and the suspended substances and the harmful substances fall into the storage frame, air enters the purification air duct through the air inletholes along the flow guide grooves in the outer ends of the adsorption blades through purification of harmful substances and suspended solids by hydrogen peroxide, the cleaning plate expands when encountering water, abuts against the inner wall of the shell and limits rotation of the purification air duct, and water generated by reaction of the cold catalyst layer and harmful gas is prevented fromcirculating to the exterior of the shell.

The invention relates to a clean pipeline drying system. The clean pipeline drying system comprises a shell, an oil-free mute air compressor arranged in the shell and a pressure gun connected with theoil-free mute air compressor, wherein a control panel is arranged on the shell; an air purification device is arranged in the shell; a heating wire electrically connected with the control panel is arranged in the pressure gun; and the air purification device comprises a filter assembly. According to the clean pipeline drying system, the air sprayed by the pressure gun is filtered by the filter assembly and then becomes clean air; the heating temperature of the heating wire on the control panel is adjusted, so that the air sprayed by a heating gun is high-temperature clean air; and the secondary pollution probability of pipe cavity type equipment during drying operation is reduced.

The invention belongs to the technical field of garbage cleaning, and discloses an internal compression solid-liquid separation device for an intelligent sweeper, the internal compression solid-liquid separation device comprises a recycling bin, the right side of the recycling bin is fixedly connected with a feeding treatment box, a filter plate is fixedly mounted in the recycling bin, and a water baffle located at the bottom of the filter plate is fixedly mounted on the right side of an inner cavity of the recycling bin. Through a filter plate, a water baffle and a vibrating plate, the vibrating plate can drive garbage to vibrate around the axis of a rotating shaft under the transmission action of a vibrating motor, a connecting shaft and an oval top block and the positioning action of a mounting frame and a positioning spring, and therefore most of water and soil residues attached to the surface of the garbage can be shaken off; and the waste water falls to the bottom in the feeding treatment box, so that part of the waste water at the bottom in the feeding treatment box can enter the bottom in the recycling barrel under the action of a water baffle, and the effect of separating the waste, the soil residues and the waste water is achieved.

The invention relates to a vegetable cleaning production line, and relates to the technical field of living vegetable cleaning equipment. The vegetable cleaning production line comprises a silt cleaning machine for cleaning silt on vegetables, a crushed vegetable leaf separator for separating the vegetables from crushed vegetable leaves, and a water and vegetable separator for separating cleaningwater from the vegetables, the silt cleaning machine is connected with the crushed vegetable leaf separator through a conveying device, and the crushed vegetable leaf separator is connected with the water and vegetable separator; and the crushed vegetable leaf separator comprises a fourth rack and a vibration cleaning device, wherein the vibration cleaning device comprises a screen hopper and a vibration motor, the screen hopper is horizontally arranged, second filtering holes are formed in the lower end surface of the screen hopper, and the vibration motor is fixedly connected to the screen hopper. The cleaning water can be separated from the vegetables, the number of the cleaning water attached to the vegetables is reduced, and the probability that the cleaning water causes secondary pollution to the vegetables is reduced.

The invention relates to the technical field of sewage treatment, and discloses an environment-friendly sewage treatment method for textile production, which comprises the following steps: A, introducing sewage into a filter pipe, filtering out large-particle impurities and sundries in the sewage through a coarse filter screen in the filter pipe, and filtering out small-particle impurities in the sewage through a fine filter screen in the filter pipe; and B, introducing the filtered sewage into an adjusting tank, uniformly scattering sodium hydroxide into the adjusting tank, and adjusting the pH value of the sewage to 4. According to the method, the sewage treatment effect is ideal, a microbiological degradation mode is adopted, organic matter in sewage is biodegraded, the probability of secondary pollution of water is reduced, flocculates in the sewage can be removed in time, water turbidity is prevented, and therefore the water quality is guaranteed, and the method is high in treatment efficiency and low in input cost, and other pollutants are not generated, so that the method has a certain market popularization prospect.