Program-controlled flushing device for vacuum belt dewatering filter cloth

Abstract

The invention provides a program-controlled flushing device for vacuum belt dewatering filter cloth. The program-controlled flushing device comprises a program-controlled rail trolley, a high-pressure water gun, an electrical control system and an anti-splashing seal cover, wherein the program-controlled rail trolley comprises a slide rail and a guide rail screw parallel to the slide rail, the slide rail and the guide rail screw are fixed to a support, the high-pressure water gun comprises a spray nozzle and a stiff pipe connected to the spray nozzle, the stiff pipe is connected to the slide rail and the guide rail screw by means of a slider, and the electrical control system comprises a motor fixed to the support and movably connected to the guide rail screw. The stiff pipe is connected to a hose. The stiff pipe is fixed to the slider by means of a clamp. The motor is connected to the guide rail screw by means of a gearbox and a coupling. Two ends of the guide rail screw are connected to the support by means of bearings. The electrical control system further comprises a controller, a driver and a transformer. The motor is a stepping motor. The support is provided with a plurality of guide wheels.

Description

technical field [0001] The invention relates to a filter cloth flushing device, in particular to a program-controlled flushing device for a vacuum belt conveyor filter cloth. Background technique [0002] The vacuum belt conveyor is used for the secondary dehydration of gypsum in the desulfurization system. It is an important part of the desulfurization system. The permeability of the filter cloth directly affects the dehydration effect of the gypsum. Operation will cause problems such as high water content in gypsum and non-drying. [0003] The traditional method is to design 4 rows of flushing water pipes at the end of the filter cloth, and design 24 nozzles for each row of pipes, to flush the filter cloth continuously for 24 hours, and the flushing pressure is 0.2MPa. The disadvantage is that the flushing position and angle are fixed, and the coverage rate cannot reach 100%. In addition, the flushing pressure is low, and the long-term operation will inevitably cause the ...

AI Technical Summary

Problems solved by technology

The disadvantage is that the flushing position and angle are fixed, and the coverage rate cannot reach 100%. In addition, the flushing pressure is low, and the long-term operation will inevitably cause the filter cloth to be blocked, the negative pressure will increase, and the dehydration effect will deteriorate.

[0004] The disadvantages of manual flushing are: 1. The labor cost is high, and the flushing process requires one person to hold a water gun to flush and one person to monitor, which is low in efficiency and labor-intensive; 2. The quality of manual flushing is uneven, the flushing quality is poor, and it is affected by interference factors Larger; 3. During manual washing, water splashes are easy to occur, and circuit equipment and roller bearings are easy to be damaged.

Its disadvantage is that there are too many flushing nozzles, the structure is complex, and it is not easy to install, maintain, and disassemble the device; too many nozzles also increase the possibility of nozzle damage and increase the burden of human supervision; , will reduce the impact force of the water flow, in order to meet the impact force of the water flow, it is necessary to increase the flow rate, waste water resources, and cause water splashes; in addition, due to the complex and fixed structure, it is difficult to be used in other dehydrators, and the versatility is poor

Its disadvantage is that the position is fixed, and the direction of the nozzle and the distance from the filter cloth cannot be adjusted according to the actual situation of the filter cloth. Since the high-pressure water pipe connects multiple nozzles, the impact force of the water flow will be reduced. In order to ensure the impact force of the water flow, It is necessary to increase the flow rate, waste water resources, and cause splashing

Images