153results about How to "Recycle" patented technology

The invention relates to an automatic foundation pit settlement alarm device, comprising a settlement monitoring device and a signal receiving terminal, wherein a balance bar of the balance bar is horizontally connected to a fixed base via a rotating shaft and can rotate along the rotating shaft, a conductive clip ball is arranged at one end of the balance bar, a clip seat matched with the conductive clip ball is arranged at the other end of the balance bar, and the conductive clip ball can be clamped in the clip seat of the adjacent alarm device; an alarm, a power supply, a power sensing switch, an alarm flasher and a wireless signal transmitting device are respectively arranged on the fixed base; and the signal receiving terminal comprises a display screen, a trigger switch and an automatic dialing device. The alarm device is simple in structure, compact in design and convenient to use; a plurality of alarm devices are connected in sequence to accurately and quickly judge the position of settlement in a foundation pit; and the alarm device is low in cost, can effectively monitor and alarm the foundation pit and can be recycled.

The invention discloses water-based paint spraying equipment, which comprises a base seat, wherein locking universal wheels are arranged on the four corners of the bottom surface of the base seat; aninserting groove is formed on the upper surface of the base seat; an inserting block is inserted in the inserting groove; screw holes are formed in the lower end of the inserting block; a threaded rodis inserted and mounted in the screw hole in a threaded manner; a first servo motor is fixedly connected to the inner side wall of the inserting groove; the right end of the threaded rod is fixedly connected with the output end of the first servo motor; and a crossbar is inserted into the inserting block in a sliding manner. According to the invention, the orderly spraying of a whole wall can becompleted by utilizing the left-right translation of the spray head and the position adjustment on the vertical height, the manual labor is replaced by machinery, the labor is saved, and the working efficiency is improved; and the paint sprayed and dropped on the wall is collected through a material holding groove, so that the paint can be re-added into the spraying process of the paint, the paintsprayed and dropped can be recycled, the waste of the paint is avoided, and the economic benefit is improved.

The invention discloses an acidic bifunctional ionic liquid catalysis method for synthesis of benzoxanthene derivatives. The key points of the technical scheme provided by the invention are as below: the acidic bifunctional ionic liquid catalysis method for synthesis of the benzoxanthene derivative employ aromatic aldehyde and 2-naphthol as raw materials and employs the acidic bifunctional ionic liquid comprising cation containing hydrogen bond donor and Bronsted acidic anion as the catalyst, and the raw materials and the catalyst are heated to 110-125 DEG C at atmospheric pressure to synthesize the benzoxanthene derivative. The invention adopts the bifunctional acidic ionic liquid as the catalyst; the materials have wide sources and are simple for preparation and low in cost; the catalyst has low dosage, high catalytic activity, and can be recycled; and the reaction process can be performed under solvent-free conditions to avoid the use of organic solvents, so as to achieve environmental and economical double benefits. The method for the synthesis of the benzoxanthene derivatives is efficient, environmentally friendly, and conducive to large-scale industrial production.

The invention provides an automatic chicken foot deboning machine and relates to the field of food processing. The automatic chicken foot deboning machine comprises a stand, wherein positioning tubesare fixed on the stand, through holes are formed in two sides of the outer wall of each positioning tube, airbags are installed on the side walls with the through holes, deboning devices are installedon two sides of each positioning tube, each deboning device comprises a driving part and a deboning knife, each driving part comprises a first gear, a second gear and a rack, and the first gear, thesecond gear and the rack are meshed with each other; a motor is also arranged on each first gear, sliding chutes are formed in the stand, the sliding chutes are communicated with the through holes, and the racks are arranged in the sliding chutes; the tail parts of the deboning knives are hinged with the racks, torsion springs are arranged between the deboning knives and the racks, the head partsof the deboning knives are pinpoint-shaped, cutting parts are formed between the head parts and the tail parts, sleeves are arranged on the outer sides of the cutting parts and the sleeves are connected with the tail parts of the deboning knives through springs. According to the scheme, the deboning knives are driven by the motors to break the chicken foot bones and then the chicken foot bones arepicked out, thereby realizing automatic deboning of chicken feet and being capable of thoroughly removing the chicken foot bones.

The invention provides equipment for preparing sulfuric acid, which comprises a high-concentration flue gas supply device, a sulfur dioxide transformation device, a sulfur trioxide absorbing device, an absorbing device, a desorbing device and a sulfur dioxide liquefying device, connected in sequence, wherein a sulfur dioxide absorbing agent is arranged in the absorbing device to absorb sulfur dioxide in high-concentration flue gas; the desorbing device is used for releasing sulfur dioxide through rising the temperature; the sulfur dioxide transformation device is used for transforming sulfur dioxide into sulfur trioxide; the sulfur trioxide absorbing device is used for absorbing sulfur trioxide with sulfuric acid to obtain sulfuric acid and acid making exhaust gas containing sulfur dioxide; the sulfur dioxide liquefying device is used for liquefying gaseous sulfur dioxide. The flue gas purification equipment can provide sulfur dioxide enriched or recovered in flue gas, and finally obtain sulfuric acid or liquid sulfur dioxide.

A power supply device capable of preventing electric shock and short circuit comprises a power supply seat and a power supply plug, wherein the power supply plug is matched with the power supply seat, a sliding groove is formed in the power supply seat, a groove opening is formed in a front end of the sliding groove and communicates with the outside, fixed power supply grooves are horizontally and symmetrically formed in a rear end wall of the sliding groove, first power supply elastic sheets are arranged in the fixed power supply grooves, a sliding block is arranged in the sliding groove and can slide forwards and rearwards, a slot with an opening facing a front end is formed in a front end surface of the sliding block, first guide grooves are horizontally and symmetrically formed in the sliding block and are provided with openings facing the slot, second guide grooves are also horizontally and symmetrically formed in the sliding block and are provided with openings deviating from the slot, through grooves are formed between the first guide grooves and the second guide grooves, gears are rotatably arranged in the through grooves, gear rings of the gears are exposed out of the first guide grooves and the second guide grooves, extrusion and push arms are arranged in the first guide grooves in a sliding way, locking arms are arranged in the second guide grooves in a sliding way, and racks are arranged on end surfaces, opposite to each other, of the extrusion and push arms and the locking arms and are engaged with the gear rings of the gears.

The invention discloses a liquid steel refine process clarifier for ladle and bakie especially a molten steel purifying slag agent, which comprises the following steps: choosing bauxite or alumina, calcium carbonate, full iron, low silicon flux, coal ash of waste and mineralization agent as raw material; igniting with coke in high furnace; burning; adding with batch; repeating; forming circle product; setting melting temperature at 1370-1770 deg.c; taping at the state of fusion; annealing with order advance vessel; cooling with semi-drying method; stewing; bruising; rough destroying; middle destroying; thin destroying. The cost of this slag agent is low, which saves a good deal of aluminum magnesium metal.