The weighing reaction pot control system achieves temperature control by automatically changing the circulation flow rate, and reduces the speed of spiral operation by increasing the density of materials, thereby adjusting the feed discharge rate per unit time. The reaction kettle automatically controls the temperature or directly circulates oil heating based on the temperature changes inside the jacket and reaction kettle. The temperature of the oil tank is automatically controlled. When installing the weighing module for the reaction kettle, various issues such as load transfer, installation of connectors, and container deformation must be considered. The combination of explosion-proof Electronic scales and other components can be easily connected to various shapes of mechanical devices to form a weighing control system, such as connecting rollers, platforms, vertical tanks, tanks, hoppers, reaction kettles, etc., when used for measuring in reaction pots. The ingredient control system adopts a combination of floating and semi floating, and forms a weighing and ingredient system using electronic scales. It can automatically measure weighing data, store it in a computer, and manage the weighing data. The electric heating reaction pot consists of a pot cover, a cylinder body, a jacket, a stirrer, a shaft seal transmission device, and a support. The pot body and components in contact with the materials inside the pot are made of OCr18Ni9 or 1Cr18Ni9Ti stainless acid resistant steel plate.

The weighing reaction kettle includes a kettle body, a driving motor, a stirring shaft, and blades. The kettle body is placed on a hole in the floor slab of the factory building, and the upper and lower parts are located in the space of two floors respectively. The driving motor is placed above the kettle body, and the driving motor is connected to the stirring shaft, which has blades. The kettle body is an axisymmetric rotating kettle, and it also includes springs, support columns, and Weighing modules. There are several support columns vertically and uniformly distributed outside the circumference of the kettle body, and each support column has a spring sleeve connected to the outside. The support column is connected to the floor slab through a spring to bear weight, and two pressure sensors are arranged at the positions of the two farthest support columns.

The Weighing system of the reaction kettle includes a weighing scale and a feeding device above the weighing scale. Each weighing scale is connected in series with a weighing controller connected to a PLC. Each stainless steel weighing scale corresponds to multiple feeding devices, and each feeding device transports one type of material; The first feeding device corresponding to the first waterproof weighing scale includes a hopper and a screw Feeder, the second feeding device corresponding to the second electronic weighing scale includes a stepper motor and a metering gear pump connected to the stepper motor. The metering gear pump is connected to the formula liquid barrel through a pipeline, and the third feeding device corresponding to the third double-layer weighing scale includes a stepper motor and a metering gear pump or metering peristaltic pump connected to the stepper motor. The metering gear pump or metering peristaltic pump is connected to the formula liquid barrel through an input pipeline, and the screw feeder and stepper motor are connected to the PLC, which is connected to the display operator.

The first feeding device of the reactor Batching system is also equipped with a stirring device, which includes a reduction motor and a stirrer. The reduction motor and the stepper motor of the screw feeder are installed above the hopper. The screw shaft of the screw feeder is inserted into the hopper, and the output shaft of the reduction motor is connected to the stirrer through a transmission mechanism. The stirring rod of the stirrer is located on the outer circumference of the screw shaft, and the speed reduction motor is connected to the PLC. PLC is responsible for calculating the total number of revolutions of the feeding device, controlling the speed, sampling weight data, and calculating and correcting the weight value per revolution. The stepper motors of the spiral feeder and the second and third feeding devices are equipped with high-speed feeding and low-speed feeding. Each feeding is carried out at high speed first, and then at low speed when approaching the weighing value of a single formula. The PLC compares the actual weight data of each weighing scale with the set weight data to calculate the measurement correction parameters of the feeding device corresponding to the explosion-proof weighing scale.

Technical parameters

*Nominal capacity: 50L, 100L, 300L, 500L, 1000L, 2000L, 3000L

*Electric heating power KW: 4 × 2,6 × 2,6 × 4,9 × 4,12 × 4,15 × 5,15 × 6

*Inner pot diameter mm: φ 400, φ 500, φ 800, φ 900, φ 1200, φ 1400, φ 1600

*Jacket diameter mm: φ 600, φ 700, φ 100, φ 1100, φ 1400, φ 1600, φ 1800

*Gearbox model (BLD): 0.8-1, 1.1-1, 2.2-2, 3-2,4-3, 4-3, 5.5-3

*Electric motor n/kw: 1450/(0.8, 1.1, 2.2, 3, 4, 4, 5.5)

*Mixing speed: 60-100 rpm (all the same)