When calibrating the regenerator catalyst regeneration lockhopper, a slide valve is used. What is a slide valve?

It involves installing a plug valve at the bottom of the vertical pipe in the locking area of the closed hopper.

We also have reprocessing; the \"closed hopper calibration\" was not used during catalyst regeneration calibration. Could LZ explain this in more detail so that we can learn from it?*

A gate valve will suffice. First, measure the height at the empty level of material; increase this value by 20% each time, and then measure it at the full level of material. Take 5 measurements at each height and calculate the average value. Detailed information can be provided by the manufacturer or the patent holder

A slide valve is a valve that uses a sliding valve core. 　　A diverter valve (see valves) is a device that uses a valve core (plunger, valve disc) to slide on the sealing surface in order to change the position of the inlet and outlet channels for fluids such as hydraulic or pneumatic fluids, thereby controlling the flow direction of the fluid. Sliding valves are commonly used in steam engines to enable the moving mechanism to move in a predetermined direction and over a specified distance, or to achieve automatic continuous operation. Working principle of slide valve valves: Plunger-type slide valves are widely used in hydraulic and pneumatic systems. p1 is the inlet pressure of the fluid, while p2 is the outlet pressure for the pressure-relief return flow. Channels A and B are connected to chambers A and B of the pressure cylinder (hydraulic or pneumatic cylinder) that is being controlled, respectively. When the plunger is in the position on the right side of the diagram, the fluid at pressure p1 flows through channel A into chamber A of the pressure cylinder, pushing the piston to move to the left. At this time, the fluid in chamber B flows through channel B toward the outlet. When the piston reaches the left extreme position (the end of its stroke), the spool drive shaft is activated, causing the plunger to move to the left and thus changing the direction of fluid flow. The fluid at pressure p1 then flows into channel B and enters chamber B of the pressure cylinder, pushing the piston to the right. Meanwhile, the fluid in chamber A flows back into channel A and out through the outlet. When the piston reaches the right extreme position, the drive shaft of the slide valve is moved again, causing the plunger to return to its right position. In this way, the slide valve causes the piston in the pressure cylinder to complete one cycle of reciprocating motion. In this continuous cycle, the piston moves back and forth automatically and continuously. If the spool drive shaft is placed in the middle position, the piston movement stops. In planar single-disc slide valves, the valve disc is subject to a large pressure difference, which results in high friction on the sliding surface; as a result, the valve operates poorly and wears out easily. It also has structural drawbacks that prevent it from adjusting within a low-flow range; as a result, its economic efficiency decreases when mechanical equipment operates under light load. The planar double-disc slide valve incorporates an additional disc, which improves flow regulation performance and the stress conditions on the discs; however, it still suffers from the drawback of high friction. Planar valve disc slide valves are mainly used in steam engines. The advantage of rotary slide valves is their rapid and precise switching action, as well as the possibility for fine tuning, but their sealing performance is poor. It is suitable for applications with low pressure and temperature. 　　The drive methods for the slide valve are manual and automatic (mechanical, electromagnetic). The automatic slide valve is driven by the mechanical equipment it controls; the two work in coordination to enable the mechanical equipment to operate automatically and continuously.