2results about How to "Improve social image" patented technology

The utility model provides a coal tar hydrogenation liquid sulfur injection device, which belongs to the technical field of liquid supply, and comprises an output pipe connected with a storage tank, the end part of the output pipe is connected with a plurality of water supply units, each water supply unit is connected with a feed pipe of a stirring barrel, and the stirring barrel is used for mixing liquid sulfur and coal tar; the water supply unit comprises a water supply pipe connected with the output pipe, the end of the water supply pipe is connected with the water inlet pipe, and the water supply pipe is sequentially provided with a switch valve used for water flow on-off, a pressure stabilizing valve used for stabilizing water pressure, a pressure regulating valve used for regulating pipeline water flow and a pressure gauge used for detecting the water pressure. According to the liquid sulfur injection device, water is stably and continuously supplied to the mixing drum through the water supply units, and the other water supply unit can be used for working when one water supply unit cannot work normally, so that the liquid sulfur injection work can be normally operated.

The utility model relates to the technical field of marking machine, concretely is a clean marking machine that does not produce dust after marking, including bottom plate, one side fixed mounting of bottom plate top has the adjusting frame, is set up marking machine through the sliding plate on the adjusting frame, the dust accumulation box is still fixedly installed in the bottom plate top other end, and the dust inlet end of dust accumulation box is provided with dust cover through the dust inlet pipe, the top of dust accumulation box still is fixedly installed with the air outlet pipe, and the air outlet end fixed mounting of air outlet pipe has the fan, and the air outlet end of fan still is set up filter sleeve through the installation pipe. The device sets up the dust accumulation box in the bottom plate top, utilizes the suction of fan generation, cooperates dust cover and dust inlet pipe, can suck into the dust accumulation box in time when the marking machine works the dust produced, effectively avoids the dust to scatter to the working environment, has greatly improved the working environment of operator, reduced the harm of dust to the health of operator's body, has also reduced the abrasion of dust to the precision parts of equipment.