52results about How to "Stop approaching" patented technology

A pump type foam discharge container wherein an air suction opening capable of sucking a large amount of the outside air is provided so that water is reliably prevented from entering the container and so that foam is prevented from being sucked from the air suction opening. An air suction opening (45) is open on the side opposite the discharge opening (43) of a nozzle body (4). The air suction opening (45) is made to communicate through a communication hole (46) with an air flow path located between an inner tube section (41) and an outer tube section (42). A skirt-like cover section (47) hanging down from the outer edge of the top of the nozzle body (4) is formed so as to extend further downward than the air suction opening (45). At least one or more pairs of partition wall sections (49) for separating and isolating inner spaces of the skirt-like cover section (47) (which are space portions between the inner side of the cover section (47) and the outer tube section (42)) from each other in the circumferential direction of the nozzle body are provided in such a manner that each of the pairs is arranged on both sides of the air suction opening (45) relative to the circumferential direction of the nozzle body (4).

The invention relates to a corrosion inhibitor used for a reforming device, and a preparation method thereof. The corrosion inhibitor used for the reforming device comprises an amine complexing agent, and the amine complexing agent comprises, by weight, 40-55% of monoethanolamine, 30-45% of diethanolamine and 10-20% of triethanolamine. The corrosion inhibitor is an oil-soluble film forming substance, contains polar groups, and can be adsorbed on the surface of the reforming device to form a single-molecular waterproof protection film, and the single-molecular waterproof protection film has a strong repulsion effect on hydrogen ions and prevents the hydrogen ions from approaching a metal device, so the effects of HCl and H2S are alleviated.

An unmanned aerial vehicle signal processing device and processing method thereof, the device comprises a receiving module (1), a monitoring module (2), an early warning module (3), an interference module (4) and a transmitting module (5), an early warning module (3 ) includes a storage unit (10) for storing unmanned aerial vehicle frequency domain data and a comparison unit ( 11), when the comparison result is within the predetermined range, the early warning module (3) sends an alarm, and the interference module (4) includes a baseband signal generator (12) for setting the baseband signal frequency, a baseband signal modulated into a noise signal Interference modulator (13), operational amplifier (14) to increase noise power and combiner (15) to combine different noise frequency bands. The invention detects the working frequency band of the drone, early warning of the approaching flight of the drone and prevents the approaching flight of the drone to a protected security area.

The invention provides an anti-explosion fire rescue door which comprises a vertical hinged door, a door leaf limiting mechanism and a rescue overturning table; the vertical hinged door comprises a door frame arranged on a wall body and a door leaf hinged to the door frame through a plurality of anti-explosion hinges, and the door leaf is provided with a door lock allowing people to open from the outer side of the wall body; the door leaf limiting mechanism is used for restraining the door opening angle of the door leaf opening towards the outer side of the wall body; and the rescue overturning table comprises a standing plate, one side of the standing plate is hinged to the bottom of the door frame, the other side of the standing plate is provided with a protective fence structure allowing people to pass through, and a swing restraining structure is arranged between the standing plate and the vertical hinged door. According to the invention, personnel can conveniently open the door leaf from the outer side of the wall body by using a conventional means and quickly build the rescue overturning platform extending out of the wall body, so that the safety of the personnel and equipment is better ensured, and safe and reliable conditions are provided for quick rescue actions.

The invention discloses a multi-ball point pre-buried pile for geological disaster early warning, which belongs to the field of geological disaster early warning. It is a multi-ball point pre-buried pile for geological disaster early warning. Through the setting of the pre-buried pile, when the geological subsidence occurs, The pre-breaking sinking rod is subjected to downward pressure, and acts on the lower outer marking end, so that the surface of the marking ball is notched, and the colored sand inside overflows. When the pre-breaking sinking rod breaks, the outer marking end recovers after losing the pressing force. , the gap disappears, and the sand mining stops overflowing. When the pre-embedded pile detects that there is subsidence, the soil near the pre-embedded pile can be excavated, and the specific subsidence situation can be judged according to the amount of colored sand. , the sharp thorns gradually approach the inner photosphere until it will pierce, causing the fluorescent liquid inside to overflow, which can be used for auxiliary marking of geological subsidence, which will help the staff to intuitively judge the situation of geological subsidence, and facilitate corresponding Countermeasures to reduce potential safety hazards.

The invention relates to a crystallizer a crystallization method of monoammonium phosphate. The crystallizer comprises a crystallizer container which is provided with a feed inlet and a discharge port. The internal cavity of the crystallizer container is a crystallizer cavity. The container wall of the crystallizer container is provided with a permeation cavity, which is communicated with a circulation liquid inlet tube and a circulation liquid outlet tube. A wall between the crystallizer cavity and the permeation cavity is a liquid permeating wall, which is provided with multiple liquid permeating holes. The liquid permeating holes are provided with a semi-permeable membrane. During crystallization production of a product solution, an auxiliary material can be introduced into the permeation cavity, substances in the auxiliary material pass through the semi-permeable membrane to enter the crystallizer container and form an ion enrichment region on the inner wall of the container so as to keep crystalline substances away. Therefore, crystallization fouling is avoided or minimized. When the crystallization method of monoammonium phosphate is carried out in the above crystallizer, formation of crystallization fouling on the inner wall of the crystallizer container can be avoided or minimized.

The invention discloses an anti-twisting automatic bale plucker which comprises a cotton conveying pipe, a stretchable pipe, a suction bin hopper, a bale plucking roller, a supporting plate, a top plate, a trolley, a sliding ring, an inner ring wallboard and an outer ring wallboard. The cotton conveying pipe is connected with the top of the stretchable pipe. The lower end of the stretchable pipe is connected with the top of the suction bin hopper. A material sensing sensor is arranged on the side wall of the suction bin hopper. A bale plucking roller is installed inside the suction bin hopper. A plurality of bale plucking fluted discs are evenly distributed on the bale plucking roller in the axial direction. The number of plucking teeth arranged on the bale plucking fluted discs is the multiple of 3, one third of the plucking teeth and the bale plucking fluted discs are on the same plane, the other two plucking teeth adjacent to the plucking teeth on the same plane of the bale plucking fluted discs are bent towards the two sides of the axial direction respectively, and a driving motor for driving the bale plucking roller is installed on the suction bin hopper. The anti-twisting automatic bale plucker is simple in structure, uniform in peeling cotton suction, capable of achieving intelligent motion cotton suction, capable of effectively preventing the bale plucking roller from being twisted by cotton, and capable of improving the working efficiency.