JPH03217705A - Device for combusting sludge scum - Google Patents

Abstract

PURPOSE:To discharge uncomfortable gas in a complete combustion state in the open air by a method wherein a partition wall is located on the downstream side of a combustion chamber, the given number of through-holes is formed in a partition wall, and the upper stream side of the partition wall is in communication with the downstream side thereof. CONSTITUTION:Uncomfortable gas is guided through a flue 6 to a combustion part 2, the flue 6 is opened in an auxiliary cylinder 22, and a partition wall 7 is located in an auxiliary cylinder 22. The partition wall 7 is arranged flush with the opening end of the flue 6, and the upper stream side is worked as a combustion chamber B. A burner 8 for combustion installed in the combustion chamber B is positioned facing the partition wall 7, and uncomfortable gas is burnt by means of the combustion heat of the burner 8 for combustion. A through-hole 71 is formed in the partition wall 7, and combustion gas being uncomfortable gas is discharged through the through- hole 71 to the outside of the combustion chamber B. When the ratio of the sectional area of the whole of the through-holes 71, 71... to the sectional area of the partition wall 7 is set to 40-60%, a combustion temperature is increased to 800-1100 deg.C. Therefore, uncomfortable gas is rapidly and completely burnt, and combustion gas being uncomfortable gas is discharged through a discharge pipe 23.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a sludge scum combustion device.

[Prior art]

Sludge scum (scum from squeezed Zygro liquid, water content 80~
90%), in conventional combustion devices, this sludge scum is dried in a combustion chamber, the unpleasant gases generated at this time are combusted in the combustion chamber, and exhaust gas is discharged.

[Problem to be solved by the invention]

However, in conventional combustion devices, the combustion temperature in the combustion chamber is 400 to 500°C, so unpleasant gases are released into the atmosphere in a state of incomplete combustion, resulting in discomfort to surrounding residents, etc. This has the disadvantage that it tends to give off an odor.

An object of the present invention is to eliminate such disadvantages.

[Means for Solving the Problems] In order to achieve the above problems, a sludge scum combustion apparatus according to the present invention includes a drying chamber and a combustion chamber, and a flue is connected between the drying chamber and the combustion chamber. In the sludge scum combustion apparatus, the sludge scum is dried in the combustion chamber, and the unpleasant gas generated during the drying is combusted in the combustion chamber. By forming a required number of through holes in the partition wall, the upstream side and the downstream side of the partition wall are communicated with each other.

In addition, the ratio of the cross-sectional area of all the through-holes in the partition wall to the cross-sectional area of the partition wall can also be set to 40 to 60%.

Further, the partition wall may be arranged flush with the opening end of the flue opening.

[Operation of the invention] Since the sludge scum combustion apparatus according to the present invention is configured as described above, that is, the partition wall is installed on the downstream side of the combustion chamber, the unpleasant gas is likely to remain in the combustion chamber, and The inside of the combustion chamber tends to reach a high temperature, and furthermore, since the required number of through holes are formed in the partition wall, the flow of the unpleasant gas and the hot air tends to cause turbulence, and as a result, the unpleasant gas flows into the flame of the burner. It is easy to come into contact with.

In addition, if the ratio of the cross-sectional area of all the through holes in the partition wall to the cross-sectional area of the partition wall is set to 40 to 60%,
Since the combustion temperature rises to 800 to 1,100°C, the unpleasant gas is likely to be quickly and completely combusted.

Moreover, if the partition wall is arranged flush with the opening end of the flue opening, the unpleasant gas and hot air in the combustion chamber are more likely to cause turbulence.

[Explanation of Examples]

Embodiments of the present invention will be described below based on the drawings.

In FIG. 3, 1 is a drying section in the combustion apparatus A, and 2 is a combustion section thereof.

In the drying section 1, 11 is a drying casing, the interior of which constitutes a drying chamber D. 111 is an input port;
It is formed in the upper part of the drying casing 11. Sludge scum is introduced into the drying chamber D through this input port 111. 3 is a drying burner, which is installed on the side surface of the drying chamber D. The sludge scum is dried by the combustion heat of the burner 3. Note that at this time, unpleasant gas is generated. Reference numeral 4 denotes a conveying rotary, which is installed approximately in the center of the drying chamber D. The dried sludge scum is transported downward via this transport rotary 4. 5 is a screw conveyor, which is installed at the bottom of the drying chamber D. The screw conveyor 5 transports the dried sludge scum (to the right) and discharges it from the outlet 12.

Next, 6 is a flue, which is communicated with the drying chamber D. This smoke chamber 6 guides the unpleasant gas to the combustion section 2. Next, in FIG. 1, 21 is an outer cylinder of the combustion section 2, and 22 is an auxiliary cylinder fitted inside this outer cylinder 21.

The flue 6 opens into the auxiliary cylinder 22 . Reference numeral 7 denotes a partition wall, which is installed inside the auxiliary cylinder 22.

This partition wall 7 is arranged flush with the open end of the flue 6, and its inner side (upstream side) acts as a combustion chamber B. A combustion burner 8 is installed in the combustion chamber B.

This combustion burner 8 faces the partition wall 7 direction.

The unpleasant gas is combusted by the combustion heat of the combustion burner 8. Next, 71, 71, . . . are through holes formed in the partition wall 7 (see FIGS. 1 and 2).
(see figure). Via this through hole 71, combustion gas, which is an unpleasant gas, is discharged to the outside of the combustion chamber B. Here, all through holes 71.
71. If the ratio of the cross-sectional area of ... to the cross-sectional area of the partition wall 7 is set to 40 to 60%, the combustion temperature will be 800 to
1. Since the temperature rises to 100°C, the unpleasant gas is likely to be quickly and completely combusted. Note that 23 is an exhaust pipe for exhausting unpleasant combustion gas.

〔effect〕

The sludge scum combustion apparatus according to the present invention includes a drying chamber and a combustion chamber, the drying chamber and the combustion chamber are communicated through a flue, and the sludge scum is dried in the combustion chamber, and the sludge scum is dried in the combustion chamber. In the sludge scum combustion apparatus, a sludge scum combustion apparatus is provided in which unpleasant gases generated during combustion are combusted in the combustion chamber. Because the side and the downstream side are communicated, that is, because a partition wall is installed on the downstream side of the combustion chamber, the unpleasant gas tends to stay in the combustion chamber and the temperature inside the combustion chamber tends to rise. Due to the number of through holes formed, the flow of the unpleasant gas and the hot air tends to be turbulent, and as a result, the unpleasant gas tends to come into contact with the flame of the burner.

Therefore, if this sludge scum combustion device is used, the combustion temperature in the combustion chamber can easily be increased to 500°C or higher, and the unpleasant gases are released into the atmosphere in a complete combustion state, resulting in no unpleasant odor in the exhaust gas. It is something.

In addition, if the ratio of the cross-sectional area of all the through holes in the partition wall to the cross-sectional area of the partition wall is set to 40 to 60%,
Since the combustion temperature rises to 800 to 1,100°C, the unpleasant gas is likely to be quickly and completely combusted.

Furthermore, if the partition wall is arranged flush with the opening end of the flue opening, the unpleasant gas and hot air in the combustion chamber are more likely to become turbulent, so the unpleasant gas is more It is even more combustible.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of a part in FIG. 3, FIG. 2 is a view of the main part in the direction of arrow 2 in FIG. 1, and FIG. 1 is a partial sectional view of an embodiment of the present invention. A... Sludge scum combustion device B... Combustion chamber D... Drying chamber 6... Flue 7... Partition wall 71... Penetration hole Figure 1 ClpJ A Procedural amendment Heisei May 24th, 2015 '9k,

Claims (3)

[Claims] (1), comprising a drying chamber and a combustion chamber, the drying chamber and the combustion chamber are communicated through a flue, the sludge scum is dried in the combustion chamber, and the unpleasant gas generated during this drying is removed from the combustion chamber; In a sludge scum combustion device that is burned in a combustion chamber, a partition wall is provided on the downstream side of the combustion chamber, and the upstream side and downstream side of the partition wall are separated by forming a required number of through holes in the partition wall. A sludge scum combustion device characterized by communicating with each other. (2) The sludge scum combustion apparatus according to claim 1, wherein the ratio of the cross-sectional area of all the through holes in the partition wall to the cross-sectional area of the partition wall is 40 to 60%. (3) The sludge scum combustion apparatus according to claim 1 or 2, wherein the partition wall is disposed flush with the opening end of the flue opening.