6results about How to "Stable and safe installation" patented technology

The utility model relates to a kind of lifting platform and filling hydraulic support based on it in coal mining technology field, comprising: lifting platform component, it includes one or more filling lifting work platform component, filling lifting work platform component, comprising: platform support seat, platform lifting guide beam and lifting platform, and ear seat is equipped on platform support seat;Platform lifting guide beam is vertically inserted in the platform support seat, and lifting platform is fastened connection in the top of platform lifting guide beam;Platform support seat is equipped with multiple platform lifting oil cylinders, the top of platform lifting oil cylinder is connected with lifting platform, and the bottom of platform lifting oil cylinder is connected with platform support seat;Lifting platform is equipped with filling conveyor, and filling conveyor is driven by filling conveyor push oil cylinder to slide horizontally on the upper surface of lifting platform.This scheme solves the problem that filling conveyor of present filling hydraulic support is prone to swing and shake when carrying material.

The utility model provides a tubular evaporator, which relates to the technical field of evaporators and comprises an outer cylinder, an upper spraying cavity is arranged on the upper portion of the outer cylinder, a lower cavity is arranged on the lower portion of the outer cylinder, an evaporation chamber is arranged between the upper spraying cavity and heat exchange tubes, and a plurality of groups of heat exchange tubes are sleeved in the evaporation chamber. The upper end and the lower end of the heat exchange pipe are arranged in the set of positioning clamping pieces in a sleeved mode respectively, the upper end of the heat exchange pipe is led into the upper spraying cavity, the lower end of the heat exchange pipe is led into the lower cavity, the middle of the outer barrel is sleeved with a middle fixing sleeve, an outer pipe opening is formed in the middle of the front side of the middle fixing sleeve, and the upper spraying cavity is of a hollow cone structure. A nozzle is arranged at the upper end of the upper spraying cavity, and the heat exchange pipe is of a hollow cylinder structure. The efficiency that materials form film shapes on the inner walls of the heat exchange tubes is improved, film forming is more uniform, the speed of secondary steam is improved, the downward movement starting speed of liquid materials is further improved, and the film forming device is more efficient and practical.

The utility model relates to a steam tail gas cooling and collecting device which comprises a sleeve, a cooling water outlet pipe is fixedly installed on the surface of the sleeve, and a cooling water inlet pipe is fixedly installed on the bottom face of the sleeve. Plugging plates are fixedly installed on the two end faces of the sleeve, and a conveying pipeline is installed in a mode of penetrating through the two plugging plates. Preformed holes are formed in the side wall faces of the plugging plates arranged on the two sides. The conveying pipeline comprises a first transverse pipe, a second transverse pipe, a third transverse pipe, a first communicating bent pipe and a second communicating bent pipe, the third transverse pipe penetrates through the plugging plate and enters the sleeve through the preformed hole, the end of the third transverse pipe is fixedly connected with the first transverse pipe through the second communicating bent pipe, the end of the first transverse pipe is fixedly connected with the first communicating bent pipe, and the end of the second transverse pipe is fixedly connected with the second communicating bent pipe. A second transverse pipe is fixedly connected to the end of the first communicating bent pipe, penetrates through the plugging plate and extends to the outside of the plugging plate through the reserved hole. The utility model has the beneficial effects of convenience in use and installation, easiness in operation, low processing and manufacturing cost, safety and reliability in use, energy conservation and environmental protection.

The utility model relates to a rotary evaporation device for preparing L-phenylalanine methyl ester hydrochloride, and aims to solve the technical problems that in the rotary evaporation preparation process of L-phenylalanine methyl ester hydrochloride at present, an operator needs to continuously add liquid into a water bath kettle, and stability and safety are poor after a collecting bottle and a second bottle opening connector are installed. A water bath kettle is installed on one side of the surface of the base, a carrier plate is installed on one side of the water bath kettle, a liquid level adjusting pipe is fixedly connected to the top end of the carrier plate, a liquid conveying tank is connected to one end of the liquid level adjusting pipe in a sealed mode, and a liquid guide pipe is connected to the other end of the liquid level adjusting pipe in a sealed mode. According to the L-phenylalanine methyl ester hydrochloride rotary evaporation device, a proper amount of liquid is automatically added into the water bath kettle of the rotary evaporation device, the situation that an operator continuously adds the liquid into the water bath kettle in the rotary evaporation preparation process of L-phenylalanine methyl ester hydrochloride is avoided, and the convenience of the rotary evaporation device in the use process is improved.

The utility model relates to the technical field of elasticizers, in particular to a smoke suction motor for an elasticizer, which comprises a motor outer box, dismounting and cleaning mechanisms are arranged on the inner wall of a smoke suction cover and the surface of a filter screen plate, a noise reduction mechanism is arranged on the surface of the motor outer box, and a safety and stability mechanism is arranged in a mounting frame plate. According to the utility model, the phenomenon of potential safety hazards caused by falling of the smoke suction motor in the use process is avoided, so that when the smoke suction motor is used, a user can conveniently pull out the filter screen plate from the interior of the smoke suction cover to clean the surface of the filter screen plate; the phenomenon that the surface of the filter screen plate is blocked in the using process of the smoke suction motor is avoided, the interior of the motor outer box can be silenced when the smoke suction motor is used, the interior of the motor outer box achieves a better noise reduction and silencing effect, and the smoke suction motor is more practical.