9results about How to "Avoid Potential Contamination" patented technology

The invention relates to the field of constructional engineering, and particularly discloses a construction waste recycling device for constructional engineering and a recycling method thereof.The construction waste recycling device comprises a recycling bin mechanism, a waste recycling bin mechanism and a waste recycling bin mechanism, and the recycling bin mechanism comprises a guide frame assembly and a recycling bin assembly fixedly connected with the guide frame assembly; the electromagnet mechanism comprises an electromagnet assembly and a driving assembly, the electromagnet assembly is rotationally clamped and embedded in the guide frame assembly, the driving assembly is installed on the outer side of the guide frame assembly, and the driving assembly can drive the electromagnet assembly to rotate; the compression mechanism comprises a compression block assembly and a hydraulic cylinder, the compression block assembly is clamped and embedded in the recycling box assembly in a sliding mode, the hydraulic cylinder is fixedly installed on the outer side of the recycling box assembly, and the hydraulic cylinder can drive the compression block assembly to slide; through the electromagnet mechanism, iron, nickel, cobalt and alloys thereof in the construction waste can be efficiently adsorbed, and valuable materials can be rapidly recycled; and the recycled metal is compressed through the compression mechanism, so that the space required during storage and transfer is effectively reduced, and the recycling process is more compact and efficient.

The invention relates to the technical field of industrial wastewater treatment, and discloses an aluminum oxidation wastewater slag treatment method which comprises the following steps: S1, pretreatment and solid-liquid separation: carrying out sedimentation and filter pressing treatment on aluminum oxidation wastewater slag to separate solid waste slag and liquid wastewater, and adjusting the pH value of the waste slag; s2, preparing an adsorption material and removing heavy metals: preparing a composite adsorption material from chitosan and nano iron oxide, and adding the adsorption material into the waste residues to remove the heavy metals; s3, aluminum oxide extraction and recovery: aluminum oxide in the waste residues is extracted through an acid dissolution method, and aluminum ions are precipitated and calcined to recover aluminum oxide. The low-cost chitosan / nano iron oxide composite adsorption material is used for effectively removing heavy metals in wastewater residues, so that the risk of environmental pollution is reduced. The aluminum oxide is recycled through the steps of acid dissolution, precipitation, calcination and the like, resource utilization is achieved, and economic benefits are improved. Meanwhile, the wastewater is recycled after being treated, so that water resources are saved, and the discharge amount is reduced.

The utility model provides an EPS (Expandable Polystyrene) foam board cutting machine, which relates to the technical field of cutting machines and comprises a U-shaped frame, a cutting mechanism is arranged on the outer surface of the U-shaped frame, a wind power mechanism is arranged on the outer surface of the U-shaped frame, and the cutting mechanism comprises a driving motor, two mounting plates and two placing plates. And the output end of the driving motor slidably penetrates through the outer surface of the U-shaped frame and extends to one side, the output end of the driving motor is fixedly connected with a threaded lead screw, and the outer surface of the threaded lead screw is in threaded connection with a moving plate. According to the foam board cutting device, a worker only needs to place a foam board on the placing plate and then starts the motor to cut the foam board, in the operation process, the worker can be far away from a cutting area and does not need to make direct contact with the cutting machine, a traditional manual cutting mode is abandoned, and therefore potential safety hazards caused by manual operation are reduced, and the work efficiency is improved. Therefore, the personal safety is ensured.

The utility model discloses a heat dissipation device, a light source controller and a camera system, and relates to the field of radiators, the heat dissipation device comprises an air cooling radiator and a refrigeration assembly, the refrigeration assembly comprises a thermoelectric refrigerator, and the refrigeration assembly further comprises a condensate water absorption part; an opening is formed in the condensate water absorbing part, the thermoelectric refrigerating unit is arranged in the opening, and the surface of the cold end of the refrigerating assembly faces the outer side of the opening; a mounting hole communicated with an inner cavity of the air-cooled radiator is formed in a shell of the air-cooled radiator, and the condensate water absorbing part is arranged on the mounting hole. The heat dissipation device not only obviously delays formation of condensate water, but also efficiently collects and treats the generated condensate water, thereby preventing potential pollution of water drops to equipment, and ensuring stable operation and long-term performance of the equipment.

The invention relates to the technical field of labels, in particular to a two-dimensional code label body, a sample storage device and a preparation method of the two-dimensional code label body. The surface coating layer is located on the label carrier, a printing layer with a two-dimensional code negative film pattern is printed on the surface coating layer, and a curing layer covers the printing layer; and a groove corresponding to the two-dimensional code negative film pattern processed on the curing layer. Therefore, the problem that the surface of the two-dimensional code is easy to frost or dew in a low-temperature environment in the prior art is solved.

The invention discloses a sampling device for hydraulic power plant transformer oil sample detection, which comprises a sampling needle used for penetrating through a transformer oil sealing layer and extracting an oil sample; the control unit is used for operating the movement of the sampling needle and controlling the sampling amount; the storage container is used for collecting and storing the extracted oil sample; the sensor is used for monitoring the state of the oil sample and the pressure change in the sampling process, personal errors are reduced through automatic sampling, and the sampling accuracy and repeatability are improved; secondly, the potential pollution of an oil sample to the environment is effectively avoided through the sealing and anti-leakage design, and the operation safety is enhanced; furthermore, the safety and the integrity of the sampled data are ensured by the built-in data recording and encrypting functions, and the reliability of the data is improved; in addition, the real-time monitoring and intelligent analysis capability provides powerful support for preventive maintenance and fault diagnosis of the transformer, and is helpful for prolonging the service life of equipment and reducing the accidental downtime.

The utility model discloses an incubator water adding device and an incubator system. The incubator comprises a water tank and sample placement layers arranged above the water tank, a water tank opening is formed in the water tank, and a matched sample placement layer opening is formed in the position, corresponding to the water tank opening, of the bottommost sample placement layer adjacent to the water tank; the water adding device comprises a water inlet flow channel used for injecting water; one end of the buffer box body is connected with the water inlet flow channel, and the buffer box body is used for temporarily storing water flow injected into the water inlet flow channel so as to relieve flow fluctuation; and the water outlet flow channel is connected with the other end of the buffer box body and is used for guiding water in the buffer box body into a water tank of the incubator. And the sectional area of the water outlet runner is larger than that of the water inlet runner. The utility model fills up the blank that the incubator in the prior art is not provided with a special appliance for adding water, has the functions of continuous water injection and quick water outlet, can add water into the incubator efficiently, quickly and conveniently, and is simple in structure, low in cost and convenient to use.

The invention belongs to the technical field of cutting processing, and discloses a titanium alloy semi-synthetic cutting fluid as well as a preparation method and application thereof. The titanium alloy semi-synthetic cutting fluid comprises the following components in parts by weight: 20-25 parts of base oil, 5-15 parts of an alkali storage agent, 5-10 parts of an antirust agent, 2-5 parts of a titanium alloy corrosion inhibitor, 20-30 parts of a lubricant, 3-6 parts of a dispersant, 3-5 parts of a coupling agent, 3-6 parts of a surfactant, 2-4 parts of a bactericide and 0.05-0.2 part of a defoaming agent. The titanium alloy semi-synthetic cutting fluid has excellent titanium alloy corrosion inhibition performance, lubricating performance, defoaming performance, cooling performance and stability, can be applied to the cutting machining process of titanium alloy and other metal materials difficult to machine, can meet the machining requirements of the materials, reduces the cutting force and the cutting temperature in the cutting process, and improves the cutting efficiency. And moreover, the cutting fluid does not contain formaldehyde-releasing materials, and meets the requirements of environmental protection RoHS2.0 (Restriction of Hazardous Substances 2.0).