41results about How to "Avoid damage to health" patented technology

The invention relates to the technical field of recycling of scrap metal, in particular to a method for recycling copper and nickel by treating copper and nickel plating sludge through rotational flow electrolysis. The method comprises the following steps: taking the copper and nickel plating sludge as a raw material, adding sulfuric acid in the copper and nickel plating sludge for leaching, adding a copper extracting agent in leachate obtained by filter pressing for extracting to obtain a copper-containing organic phase and raffinate, carrying out copper reextraction on the copper-containing organic phase to remove oil, and then carrying out copper electrodeposition by a rotational flow electrolysis device to obtain copper with the purity greater than 99.95% on a cathode; carrying out complexing on the raffinate to remove iron from the raffinate, then carrying out continuous saponification and counter-current extraction on the raffinate, removing oil from the raffinate, and then carrying out nickel electrodeposition by the rotational flow electrolysis device to obtain nickel with the purity greater than 99.95% on the cathode. The method for recycling copper and nickel by treating the copper and nickel plating sludge through rotational flow electrolysis is efficient, reliable, clean and pollution-free; a technological process is simple; copper and nickel recycling rate is high; and regenerated copper and nickel products are high in purity.

The invention relates to an exercise equipment for assisting squat movement, comprising a bottom plate mechanism, a stand column mechanism and a lifting mechanism, wherein the stand column mechanism is perpendicularly fixed on one side of the bottom plate mechanism; the bottom plate mechanism comprises a base seat, a bottom plate, a foot limiting device and a knee limiting device; the foot limiting device is arranged on the bottom plate; the knee limiting device is perpendicularly fixed on the bottom plate; the stand column mechanism comprises a guide rail with a sliding platform; the lifting mechanism is fixed on the sliding platform on the stand column mechanism; the lifting mechanism is provided with a handle device, an elbow limiting device and a back pushing device. According to the invention, the foot limiting device and a knee limiting device are installed on the bottom plate mechanism, and the handle device, the elbow limiting device and the back pushing device are installed on the lifting mechanism; therefore, each vertebra joint of human body can be exercised, and when in a normal squat process of human body, the elbow part, the knee part and the feet cannot move naturally so that corresponding exercises can be achieved.

The invention discloses anautomatic welding machine for welded elbows, which mainly solves the problems of high skill level requirements for operators, high working intensity, terrible working environment, low welding efficiency andunstable gap welding quality when manual welding is adopted during welding of the welded elbows. The automatic welding machine for welded elbows is characterized in that a bracket is provided with a traction seat driven by a first power source by a first power source to make linear movement in the horizontal direction; the traction seat is provided with a liftable welding gun,and a support is provided with a rotating disc; a workpiece is arranged on the rotating disc and the rotating disc hasa first position in which the top outer wall of the workpiece corresponds to the welding gun and a second position in which the bottom outer wall of the workpiece corresponds to the welding gun after rotation.According to the automatic welding machine for welded elbows,the welded elbows are driven to rotate by arotatable rotating disc and are weldedin a following mode by the liftable welding gun.Weld is in high quality and stability, weld seams are attractive in appearance,requirements for the welding professional skill of operators are not high, and the phenomenon that the operators inhale harmful gas during welding operation due to long time operation is avoided.

The invention relates to an environment-friendly healthy barbecue oven, and belongs to the field of barbecue devices. The environment-friendly healthy barbecue oven comprises an oven body, charcoal grooves, end plates, side plates and a water tank; the oven body is a hollow box body shaped like a prism in the transverse direction, a barbecue opening for containing food skewers is formed in the upper bottom face, and the box body is formed by fixedly connecting a lower bottom plate, the end plates on the end faces of the left side and the right side and the side plates on the front side and the back side; the water tank over against the barbecue opening is arranged on the lower bottom face in the oven body, and the charcoal grooves are formed in the lower bottom face in the oven body and located in the front side and back side of the water tank; the longitudinal section of the oven body is a polygon formed by connecting the upper bottom edge of a rectangle and the lower bottom edge of a trapezoid in an edge-shared mode, and openings facilitating inlet and outlet of the charcoal grooves and the water tank are formed in the lower side of the end plate of at least one end face of the oven body; each charcoal groove is a rectangular box body with the opened upper bottom face, wherein a combustion chamber is formed in the upper layer, an air chamber is formed in the lower layer, and an oven bridge is arranged between the two layers; the water tank is a rectangular box body with the opened upper bottom face. The barbecue oven is environmentally friendly, healthy, sanitary, convenient to use and suitable for home and commercial application and saves energy, and barbecued food is fresh and tender in flavor.

The invention relates to a layered composite light acoustical material for a rail train. The rail train adopts a multilayer structure which consists of an aluminum rail train aluminium section, an inner wall plate, and a heat preservation and flame retardant material between the aluminum rail train aluminium section and the inner wall plate. The layered composite light acoustical material is characterized by being arranged between the aluminum rail train aluminium section and the inner wall plate, wherein the acoustical material at least comprises a latticed rubber framework material layer. The layered composite light acoustical material also comprises a porous material layer or/and a damping layer. The layered composite light acoustical material and the inner wall plate are in an integrated structure. On the basis of an original heat preservation and flame retardant material applied to a carriage of a high-speed train, the novel composite material has the advantages that the properties of sound absorption, sound insulation and vibration reduction are good, and at the same time, less space in the carriage is occupied.

The invention discloses a production process of environment-friendly regenerated rubber prepared through chemical desulfurization, milling and molding procedures with a tread rubber powder as a raw material. The preparation method is characterized in that: in the chemical desulfurization procedure, the added tread rubber powder and auxiliary agent formula comprises the components in parts by weight: 1200-2000 parts of the tread rubber powder, 120-200 parts of vegetable oil pitch, 2-10 parts of an activator, and 100-400 parts of water. The vegetable oil pitch instead of conventional coal tar, pine tar, coal pitch and the like is used as a softener for chemical vulcanization of the regenerated rubber, so that the prepared regenerated rubber can reach national standard A-level regenerated rubber standards, and is environmentally friendly and odorless. A leather shoe sole prepared from the regenerated rubber does not turn blue, and is good in wear resistance and good in quality.

The invention discloses a method for preparing novel high-quality regenerated rubber. The method comprises the steps of crushing and magnetic separation and chemical desulfurization, wherein the step of crushing and magnetic separation comprises the processes of crushing lumpy tires by a coarse crusher, sieving, so as to obtain coarse granules, carrying out first-time magnetic separation and second-time magnetic separation, so as to obtain pure coarse rubber granules and recovered steel wires, crushing the pure coarse rubber granules by a crushing machine, and then, sieving, thereby obtaining tread rubber powder; the step of chemical desulfurization comprises the processes of adding the tread rubber powder and auxiliaries, wherein a formula comprises the following ingredients in parts by weight: 1,200-2,000 parts of tread rubber powder, 120-200 parts of vegetable oil asphalt, 2-10 parts of activator, 5-20 parts of hydroxide and 100-400 parts of water. According to the method, iron wires can be effectively separated, so that the wear to equipment is reduced, and the quality of the prepared tread rubber powder is good; the existing softener is replaced with the vegetable oil asphalt, and meanwhile, hydroxide is added, so that the prepared product reaches the class-A recycled rubber standard of the national standard, is environmental-friendly and odorless and is not subjected to bluing.

The invention discloses expansion joint cutting equipment for bridge construction. According to the expansion joint cutting equipment for bridge construction, a water tank device is used for sprayingwater to a saw blade; fracture and damage of the saw blade caused by being in a high-temperature state for a long time are avoided, water is contacted with dust, flying dust is reduced, a dust collection device is used for collecting dust generated during cutting of the saw blade; the visibility of equipment line cutting is ensured; the body health damage caused by flying dust inhaled by workers is avoided; a large-diameter broken stone storage box is used for blocking and collecting large-diameter dust; large-diameter dust is prevented from entering the dust collection device to cause blockage and damage of the dust collection device; the dust collection device, the water tank device and a cutting turntable device are driven by a same motor; an extra motor is not needed, utilization of the motor is greatly improved, resources and cost are saved, two piston cylinders in opposite states of the dust collection device can enable a dust suction hood to continuously suck dust, the dust falling efficiency is improved, the front shovel cleans a bridge floor, and cutting is prevented from being affected by sundries on a cutting line.

The invention discloses a hairdressing service system. The hairdressing service system comprises a background management module and a terminal platform module arranged in a hair salon, wherein the background management module allows a system administrator to manage background data and stores background data containing a plurality of advertising messages into a background cloud system; the terminal platform module is in communication connection with the background management module and the background cloud system and comprises a plurality of display equipment arranged in front of seats in the hair salon and an access host in communication connection with the display equipment, the advertising message pre-downloaded from the background cloud system are stored in the access host, the background cloud system allows the advertising messages stored in the access hose to be displayed on the display equipment according to instructions issued by the background management module and a schedule table. By the hairdressing service system, product selecting efficiency of consumers can be increased, and time and money waste are avoided.

The utility model belongs to the field of computer hardware and concretely provides a display with timing prompting and air purifying functions. The display comprises a display housing. The display is characterized in that the left side of the top of the display housing is provided with a bearer; the bearer is provided with a square box; a breathing hole is formed in the square box; activated carbon is filled in the square box; and the display housing is equipped with a timing prompting device. The beneficial effects of the display with the timing prompting and air purifying functions are that compared with the prior art, functions of the display are enriched; with an addition of a timing prompting device, the display possesses functions of recording time and giving an alarm for prompt in due time, so a user can be reminded of resting after long-time work in front of the computer and body health can be protected; air surrounding the computer can be purified, so damage to human body by harmful substance in the air can be prevented; and the display with the timing prompting and air purifying functions is simply structured with rational design and certain practicality.

The invention discloses bulb cleaning type mounting equipment for a mine ceiling lamp, and relates to the technical field of bulb cleaning. The invention aims to provide the bulb cleaning type mounting equipment for the mine ceiling lamp capable of automatically clearing dust on the ceiling lamp, being convenient for an operator to replace a bulb, and capable of avoiding flying dust. The bulb cleaning type mounting equipment for the mine ceiling lamp comprises a grab handle, a sliding rod, a fixing sleeve, a first compression spring, a bulb mounting and dismounting device and the like; the sliding rod is fixedly arranged at one end of the grab handle, and the fixing sleeve is arranged on the sliding rod in a sliding mode; and one end of the first compression spring is fixedly connected with one side of the fixing sleeve, and the other end of the first compression spring is fixedly connected with one side of a circular block on the sliding rod. According to the bulb cleaning type mounting equipment for the mine ceiling lamp, by means of the arranged bulb mounting and dismounting device and an arranged lamp holder dust brushing device, the dust on a lamp holder can be automatically cleared, and a worker can conveniently mount, dismount and replace the bulb.

The invention relates to a preparation method of infant anti-mosquito summer talcum powder. The talcum powder comprises the following components in parts by mass: 35-45 parts of corn flour, 5-8 partsof squalane, 5-8 parts of squalene, 3-5 parts of tea polyphenol, 5-8 parts of pollen pini, 3-5 parts of peach leaf, 4-6 parts of mother chrysanthemum, 1-12 parts of glycyrrhiza, 2-4 parts of aloe, 3-6parts of xanthan gum, 1-2 parts of allantoin, 2-4 parts of ethylene glycol and 5-10 parts of liquid paraffin.

The invention relates to the technical field of sickbeds, in particular to an obstetrical sickbed for infants. The obstetrical sickbed for infants comprises a turnover frame, a lifting mechanism, an auxiliary lifting mechanism and a side opening and closing mechanism. An upper body of an infant is lifted to a reasonable posture through the auxiliary lifting mechanism and a situation that health of the infant is damaged due to the fact that the infant lies for breast-feeding for a long time is avoided; through cooperation of a miniature air blower and an air bag cushion in the auxiliary lifting mechanism, when a diaper of the infant is replaced, a part of legs and a buttock of the infant are lifted, such that an operator can conveniently replace the diaper under a condition that a space is small; and a side plate can be opened by rotating a rotary knob block through the side opening and closing mechanism, such that a family member lying on the bed can conveniently carry out operations such as holding up, putting down and touching, and an effect of better interaction with the infant in person is achieved.

The invention discloses a paint spraying device for threads of a water meter shell, belongs to the technical field of automatic coating control, and relates to a paint spraying device, with the nominal caliber of 15 mm according with GB778-2018, for threads of a water meter shell. The paint spraying module is mainly composed of a support, a sliding table cylinder, a rotating cylinder, a spray head, an upper protective cover, a water meter shell tool, a lower protective cover, a large-diameter open clamp, a paint discharge opening, a Teflon rod, another sliding table cylinder, another rotating cylinder, another Teflon rod, another spray head, a right protective cover, a left protective cover, another large-diameter open clamp and another paint discharge opening, wherein one sliding table cylinder is arranged on the support, so that the whole paint spraying module is close to the water meter shell; one rotating cylinder is used for controlling rotation of the corresponding spray head and Teflon rod; and the protective covers are controlled by one large-diameter open clamp to prevent spray paint from being sprayed to the outer surface of the water meter shell, so that the device can achieve the automatic paint spraying function on a water inlet thread, a water outlet thread and a top thread of the water meter shell.

A reagent for testing colored wine is prepared from 0.2 ¿C 0.6 % of methyl red, 0.2 ¿C 0.6 % of helianthin, 0.5- 1.5 % of phenothalin, 1.5 ¿C 2 % of bromthymol blue, 6 ¿C 7 % of alcohol solution and 90 ¿C 95 % of basic electrolytic water. It features that reagent is blue, different coloured wine presents different colour when reagent is added into wine and then true or false tested wine can be judged according to its presented colour.

The invention discloses a low-temperature tobacco heating control system and a heating control method. The control system comprises a power supply, a controller, a key control unit, a first heating unit and a second heating unit, wherein the power supply, the key control unit, the first heating unit and the second heating unit are all connected with the controller; the first heating unit is not incontact with a cigarette tobacco part and heats the cigarette tobacco part, and the second heating unit heats air in a low-temperature smoke inlet channel; and the control system also comprises a first current detection unit connected with the first heating unit and a second current detection unit connected with the second heating unit. The control system can stop working when the heating units are in open circuits for reminding a user, thereby saving energy; the tobacco part can be fully and uniformly heated and atomized, the temperature is relatively low, the heat insulation structure is simple, the phenomena of local burning of the tobacco part or scalding of an oral cavity are avoided, the smoke outlet speed is high, the smoke quantity and the smoke temperature are stable, the workingreliability is high, the safety coefficient is high, and the user experience is good.