Century New Power (Tianjin) International Trade Co., Ltd

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BLAST FURNACE BAGHOUSE

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This dust remover is a new type of high efficiency bag filter which is improved on the current domestic blast furnace gas purification of the non-standard bag filter, which can also be used for other operating pressure of the dust inflammable gas purification system.

The integral welding structure makes the box, the air tube, dust hopper and emission tube etc. as a whole. The integral structure has the characteristic of good hermetic and no leakage and it is safe and reliable so as to protect the atmospheric environment and the safety of staff, the equipment is strictly tested for air tightness and pressure before it come out from the factory, which also contains a riot valve and a emission tube.

Principle

The gas that after initial separation get into the box from the bottom of the dust remover, and larger particles fall on the ash bucket by their own weight, and the smaller particles dispersion in the room of the filter bags, so they are remained on the surface of the bags and then the clean gas is sent to the users. With the procession of the dust remover, dust remained on the surface of the filter bags become more and more, the  resistance of the bags increases, when the resistance of the bags reaches upper threshold, the system will open the purge-valve automatically in order to send the cleaning gas into the pressure static box, which makes the filter bags changed from a state of deflated to a state of expansion so that the dust absorbed on the surface of the filter bags will fall into the dust hopper at the bottom of the box and the dust in the hopper will be cleaned by the ash valve. When the resistance of the filter bags reaches down threshold, the system will close the purge-valve to stop cleaning, as so the dust remover works again.

Installation and Debugging

1.       Shell installation. To ensure the stability of equipment, a platform or ground equipment for installation should be flat, when the shell is installed in place, use a level measurement instrument to find a flat place and then fix anchor bolts.

2.       Filter bags installation. The shell should be cleared of all debris after its installation, and check whether there is damage in the bags and whether the skeleton of the filter bags is intact and make sure there is no bending and wrong mouth, if it does happen, repair or replace it.

3.       Check the filter bag, check-hole and blasting valve comprehensively when it is installed, duel with it if problems found.

4.       Conduct a trial to run the equipment when installation is completed, open or close the air valve, emission valve, dust

valve, check-hole, blasting valve, etc. send the air to the box, the air pressure is of 0.01Mpa. At the same time conduct a comprehensive inspection to make sure there is no leakage in the connection point.

5.       Carry out thermal insulation and anti-corrosion treatment on the shell of the equipment when it pass the test.

Maintenance and Repair

1.       Do not accumulate too much dust in the hopper (to prevent blockage), clean dust timely.

2.       Check automatically purge-control systems regularly to prevent failures.

3.       Check filter bags regularly, replace it when damage found.

4.       Rule out the residual gas before repairing it in order to prevent gas poisoning.

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