JPH11277013A - Washing apparatus for cooling water pipes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove soot adhering to water pipes and at the same time to heighten the heat exchange efficiency of water pipes. SOLUTION: This washing apparatus for cooling water pipes cuts out quick lime or a mixture of quick lime and sand stored in a lower part of a hopper F by a cutting-out rotary damper 18, conveys the quick lime or the mixture of quick lime and sand to an upper part of cooling water pipes 17 by a conveyor 19, sends the quick lime or the mixture of quick lime and sand to a distributor 21 through a cutting-out rotary damper 20 installed in the conveyor 19, and sprays the quick lime or the mixture to the outer circumference of water pipes 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is a technical field for removing soot adhering to a group of cooling water pipes.

[0002]

2. Description of the Related Art Conventionally, soot blowers for spraying steam or high-pressure air have been commercially available, but their effects may not be sufficient.

[0003]

Conventionally, it has been extremely difficult to remove soot generated by burning old tires and high-molecular compound plastics when they adhere to the cooling water pipes. The purpose of the present invention is to solve this problem.

[0004]

According to the present invention, soot and quicklime or a mixture of quicklime and sand stored in a lower hopper F are taken out by a rotary rotary damper 18 and separated by a separator 23 soot and granular quicklime or quicklime. And sand mixture is separated, soot is discharged to the outside, and quicklime or a mixture of quicklime and sand is carried to the upper part of the cooling water pipe group 17 by the conveyor 19, and is passed through the cut-out rotary damper 20 provided on the conveyor 19 to the distributor. 21 and sprayed on the outer circumference of the cooling water pipe group 17. This is a cleaning device for a cooling water pipe group having such a configuration.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Since the present invention is configured as described above, it is possible to remove soot adhering to the water tube group and to increase the heat exchange efficiency of the water tube group.

[0006]

EXAMPLES In order to carry out the present invention, a test machine having a furnace width of 500 mm was manufactured and performance tests were repeatedly performed.

[0007]

According to the present invention, the soot adhering to the water pipe group is removed while being confined in quicklime or a mixture of quicklime and sand, and separated into a soot and granular quicklime or a mixture of quicklime and sand by a separator. The separated quicklime or the mixture of quicklime and sand is then sent to a conveyor for reuse for washing. In addition, when quick lime comes into contact with the high-temperature combustion gas flowing from the combustion chamber E, it is partially decomposed into slaked lime and combined with chlorine in the combustion gas, so that a desalting effect can also be obtained. As described above, the soot removal effect of the water pipe group is reduced, and the amount of dust is reduced and the salt is removed.

[Brief description of the drawings]

FIG. 1 is a sectional view of the present invention.

FIG. 2 is a plan view of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Fuel inlet 2 Gas generating furnace 3 Ignition burner 4 Mechanical reversal stalker 5 Push-in blower 6
Conduit 7 High-pressure air blower 8 Ejector 9 Mixer The unburned gas is guided to the mixer 9 through the conduit 6 by the attraction of the ejector 8 which acts by the wind power of the high-pressure air blower 7. 10 Burning rib burner 11 High pressure air blower
12 air pipe 13 air nozzle 14 stop valve 15 automatic valve
16. Water nozzle In order to prevent combustion explosion inside the conduit 6, water is supplied from the H line to monitor the temperature of unburned gas inside the conduit 6 and perform automatic temperature control. 17 Cooling water pipe group 18 Cut-out rotary damper 19 Conveyor 20 Cut-out rotary damper 21 Distributor 22 Ashing damper 23 Separator 24 Ashing conveyor WF Fireproof insulation front wall WB Fireproof insulation floor wall WS
Refractory insulation side wall WI Intermediate baffle of refractory insulation structure WM Refractory insulation partition wall WR Refractory insulation rear wall AC Air curtain KL Clinker discharge line A Air chamber B Combustion chamber C Reburning chamber D Combustion chamber E Combustion chamber outlet F Lower hopper G Ash hopper H Water supply line J Combustion burner burner K Unburned gas burner L Incinerator outlet O Oxygen gas supply line

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[Procedure amendment]

[Submission date] October 24, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 2

FIG. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 31, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

Claims (1)

[Claims] 1. A cleaning device for spraying quicklime or a mixture of quicklime and sand on the outer periphery of a cooling water pipe from an upper stage to a lower stage to remove soot adhering to the outer periphery of the cooling water tube.