초록 ▼

An automated chemical storage and feed system for a use station to chemically treat and monitor a process at a use station where the process is being run, including one or more base tanks at the use station storing chemicals and having means intermittently or continuously feeding the chemicals to th

An automated chemical storage and feed system for a use station to chemically treat and monitor a process at a use station where the process is being run, including one or more base tanks at the use station storing chemicals and having means intermittently or continuously feeding the chemicals to the process. A level sensor is provided in each base tank to determine the chemical level and to deliver a signal to a control and processing unit. Sensors may be provided on the process for generating chemical condition information to the control and processing unit. A telemetry system receives the information from the control and processing unit and transmits it to a supply station where the information is recorded and read out by a person to monitor the chemical supply in the base tank and to monitor the chemical condition of the process so that the chemical feed may be adjusted as needed from the supply station and so that further chemical may be delivered to the use station to be introduced into the base tank for maintaining an adequate supply to prevent interruption of the process. Refill tanks are shipped from the supply station to the use station, transported to the base tank, and emptied into the base tank. Thereafter, the refill tanks are returned to the supply station to be refilled. A unique hand truck is used at the use station to transport a refill tank to the base tank and to handle the refill tank during unloading.

대표청구항 ▼

A hand truck for transporting a cylindrically shaped refill tank of about fifty gallon capacity filled with a chemical product and for unloading the product into a stationary base tank, said refill tank having a discharge means at the bottom of the tank, said hand truck also having means for transpo

A hand truck for transporting a cylindrically shaped refill tank of about fifty gallon capacity filled with a chemical product and for unloading the product into a stationary base tank, said refill tank having a discharge means at the bottom of the tank, said hand truck also having means for transporting a nitrogen cylinder for pressurizing the refill tank during unloading and transfer of product to the base tank, and equipment to interconnect the nitrogen cylinder and refill tank and control the pressurizing of the refill tank during transfer, said hand truck including a generally upright elongated frame having upper and lower ends, a front side and a back side, running wheels mounted on the lower end for supporting the truck and allowing it to be wheeled along a generally flat surface, handle means at the upper end of the frame, lifting means on the lower end of the frame at the front side for engaging the bottom of a refill tank, means intermediate the upper and lower end of the frame for selectively securing the refill tank to the frame, a cage at the back side of the frame for receiving a nitrogen cylinder used to unload the product from the refill tank, nitrogen connection and control means connecting the nitrogen cylinder to the refill tank and controlling the pressure of nitrogen in the refill tank, and means coacting with the running wheels to position the truck and refill tank and elevate the bottom of the tank to facilitate connection of a transfer line from the base tank to the discharge means of the refill tank.