Curing pump selection and maintenance

Defining a Curing Agent Pump Usually only a mechanical diaphragm metering pump is used to transport the curing agent (benzene sulfonic acid) onto a resin sand mixer. A kind of special volume pump that can meet the needs of resin sand mixing process flow, the flow rate can be steplessly adjusted within 0-100, and used to transport liquid (especially corrosive liquid). Working principle Curing agent pump mainly by the drive motor, crank connecting rod mechanism, pump head, check valve, flow adjustment knob and other components. The motor drives the worm and worm gear to make variable-speed motion through the direct drive, and converts the rotational motion into the reciprocating and linear motion under the action of the crank and connecting rod mechanism. The slide bar is directly connected with the diaphragm. During the work, the slide bar reciprocates and pushes the diaphragm back and forth to move forward and backward. The purpose of suction and discharge is achieved through the opening and closing of the one-way valve on the pump head to achieve the function of transporting the curing agent. Curing pump installation 1. The pump should be installed on concrete 300-500 mm above the ground, or the corresponding solid base, the pump is horizontal state correction. 2. Suction and discharge piping should not have sharp bends, and minimize pipe bending and increase the resistance of the components. 3. Do not install the pump in direct sunlight. 4. Do not install the pump in a place exposed to moisture or corrosive gases. 5. Install the pump ambient temperature should be -20 --- +40 degrees Celsius. Curing agent pump input and output pipe installation 1. Inhalation pipe diameter can not be less than the pump suction valve diameter, and should try to shorten the suction pipe length, generally 1-2 meters is appropriate, such as the need to increase the length, but the length does not exceed 4 meters. 2. Inhalation, the valve connected to the discharge valve can not be forced to increase the load on the pump valve shall not be the weight of pipes and valves by the suction pump and suction valve, pipe installation is completed should support and fix the pipe fittings. 3. In order to ensure the safe operation of the pump and piping system, it is recommended to install a safety valve on the discharge line. If it is necessary to reduce the pulse during the curing agent delivery, install a damper on the discharge line close to the pump. If the pump Outlet pressure instability, it is recommended to install back pressure valve. Curing pump storage a, short-term storage 1. In a dry environment, indoor storage at room temperature. 2. In accordance with the requirements of the operating environment, precautions can be taken to prevent water or moisture from entering the eccentric housing. 3. Conduct a full inspection before starting. Second, the long-term storage of long-term storage, every 12 months to drive the motor power, let the pump run for at least one hour, the implementation of the operation without fluid in the pump head, but the outlet must be connected with the atmosphere. Application of curing agent pump resin sand sand casting machine, FRP production machinery, sewage treatment and other industries.