A New Design of Horizontal Pressure Leaf Filter-Shell retraction horizontal pressure leaf filter
In the existing horizontal leaf filter, considering the manufacture and use, the filter cartridge is unmoved after filtration, and the moving head is pulled open. scum. Although it is relatively simple to open the sealing head, because the drainage ports of each filter screen guide frame are set on the same collecting pipe, each time the filter screen is pulled in and pulled out to move the slag, the liquid collecting pipe interface must be disassembled first. filter to move. The slag unloading work is relatively frequent, and sometimes the slag needs to be unloaded several times a day. Each time the slag is unloaded, the interface of the collector needs to be disassembled. After the slag is unloaded, the interface needs to be connected again, which not only increases the workload, but also frequently disassembles the interface. It will cause the deterioration of the sealing performance of the interface, and the leakage of the residual liquid in the collecting pipe, which will pollute the operating environment. This structure has not changed for a long time, and it has become a common practice in the industry. At the same time, it has also become a problem and defect of the horizontal leaf filter for a long time.
Our company provides an improved horizontal leaf filter that does not move the filter screen when the slag is unloaded, and the external pipe interface does not need to be disassembled. We call it a Shell retraction horizontal pressure leaf filter.The main improvement is that when unloading the slag, the head connected to the filter screen is not moved, the filter cartridge is pulled apart and moved, and all the external pipe ports except the steam inlet and outlet on the cylinder are moved to the head, so that the The liquid collecting pipe mouth of the net discharge port is fixedly connected with the outer pipe, which avoids the disassembly of the interface when the slag is discharged, and overcomes the defect caused by the movement of the original head and the need to disassemble the liquid collecting pipe interface. Specifically, the new type of horizontal leaf filter includes a filter support, which is provided with a filter body with a thermal insulation jacket, a relatively openable and closable head and a cylinder body. A filter screen with a guide frame, a liquid collection pipe connected to the liquid outlet of each filter screen guide frame, and various external pipe ports arranged on the filter body, characterized in that the filter body head is fixedly arranged on the bracket, The filter body cylinder is axially moved and arranged on the bracket, and various external pipe ports are arranged on the filter body head.
The new type of support can be a hanging type, that is, the filter body is hung on the support; it can also be a lower support type, that is, the filter body is supported on the support. One of them is preferably a lower support type, which is convenient to manufacture and has a small installation space.
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