CN216604401U - Secondary combustion chamber with sedimentation dust removal structure - Google Patents

Abstract

The utility model discloses a secondary combustion chamber with a sedimentation dust removal structure, which comprises a chamber body and a sedimentation part, wherein the sedimentation part comprises a treatment cavity, an air inlet, a first ash blocking wall, a second ash blocking wall, an ash collection pit and an air outlet, the first ash blocking walls and the second ash blocking walls are alternately arranged at intervals, the first ash blocking walls and the second ash blocking walls are partially superposed on the lateral projection surface, and the ash collection pit is in a bucket shape. The utility model can force the flue gas/gas to change direction continuously when flowing in the chamber body by arranging the chamber body and the sedimentation part, so that the flue gas flows fully in a turbulent flow state, the sedimentation effect of dust is improved, and the problems that the existing secondary combustion chamber cannot thoroughly treat the dust in the flue gas, the burden and consumption of subsequent equipment can be increased, and other flue gas treatment equipment is easy to block and damage are solved.

Description

Secondary combustion chamber with sedimentation dust removal structure

Technical Field

The utility model belongs to the technical field of centralized incineration and thermal cracking of solid wastes, and particularly relates to a secondary combustion chamber with a settling and dedusting structure.

Background

At present, the common secondary combustion chamber furnace body structure only comprises: air inlet, chamber body, gas outlet. When the secondary combustion chamber is used, the temperature of the secondary combustion chamber body is firstly heated to a set temperature, then the flue gas/gas needing high-temperature treatment is sent into the chamber body from the air inlet, and when the flue gas flows through the chamber body in a high-temperature state, harmful substances in the flue gas are destroyed (decomposed), and organic substances originally remaining in the flue gas are incinerated. However, the original dust in the flue gas is not removed, and new dust may be generated in the incineration process. The original dust and the newly generated dust are discharged from the air outlet together with the flue gas and flow to the following equipment. This can greatly increase the burden and consumption of the following fine dust removal equipment, and cause blockage and damage to the following flue gas/gas treatment equipment, affecting the normal performance of the whole flue gas/gas treatment system. In order to solve the problems, it is particularly necessary to design a secondary combustion chamber with a settling dust removal structure.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a secondary combustion chamber with a settling dust removal structure, which has the advantages that when smoke/gas is forced to flow in a chamber body, the direction can be continuously changed, the smoke flow is fully in a turbulent flow state, the settling effect of dust is improved, the smoke is fully combusted, and the emission of harmful substances such as dioxin is reduced, and the problems that the dust in the smoke is not thoroughly treated in the conventional secondary combustion chamber, the burden and consumption of subsequent equipment are increased, and other smoke treatment equipment is easily blocked and damaged are solved.

The utility model is realized in such a way that the secondary combustion chamber with the sedimentation dust removal structure comprises a chamber body and a sedimentation part for separating dust in flue gas, wherein the sedimentation part comprises a treatment cavity arranged in the chamber body, an air inlet arranged on one side of the treatment cavity, a plurality of first ash blocking walls arranged on the top wall in the treatment cavity, a plurality of second ash blocking walls arranged on the bottom wall in the treatment cavity and matched with the first ash blocking walls, a plurality of ash collecting pits arranged on the bottom wall of the chamber body and an air outlet arranged on the top wall of the chamber body and communicated with the treatment cavity, the plurality of first ash blocking walls and the plurality of second ash blocking walls are alternately arranged at intervals, the first ash blocking walls and the second ash blocking walls are partially superposed on the upper part of a side projection surface, and the ash collecting pits are bucket-shaped.

Preferably, the bottom of the ash collecting pit is provided with an ash outlet, and the ash outlet is provided with a valve.

Compared with the prior art, the utility model has the following beneficial effects:

1. by arranging the chamber body and the sedimentation part, the high-temperature treatment of the flue gas/gas can be realized without increasing the number of equipment, and a considerable amount of dust in the flue gas/gas can be removed. Meanwhile, the first ash blocking wall and the second ash blocking wall are arranged in the chamber body, so that the direction of flue gas/gas is continuously changed when the flue gas/gas flows in the chamber body, the flue gas flows fully in a turbulent flow state, the settling effect of dust is improved, the flue gas is fully combusted, the emission of harmful substances such as dioxin is reduced, and the problems that the existing secondary combustion chamber cannot thoroughly treat the dust in the flue gas, the burden and consumption of subsequent equipment can be increased, and other flue gas treatment equipment is blocked and damaged easily are solved.

2. According to the utility model, the ash outlet and the valve are arranged, so that dust accumulated in the treatment cavity can be conveniently cleaned, and the valve can be automatically opened or manually opened.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic diagram of a third structure according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a fourth structure according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a fifth embodiment of the present invention;

fig. 6 is a schematic diagram of a sixth structure according to an embodiment of the present invention.

In the figure: 1. a chamber body; 21. a treatment chamber; 22. an air inlet; 23. a first ash blocking wall; 24. a second ash retaining wall; 25. a dust collecting pit; 26. an air outlet; 31. an ash outlet; 32. a valve; 41. a first inclined portion; 51. a first extension portion; 52. a second extension portion; 53. a second inclined portion; 61. a third extension portion; 62. a fourth extension portion; 63. a third inclined portion; 71. a fourth inclined portion; 72. a fifth inclined portion; 81. a first arcuate portion; 82. a second arcuate portion.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

The structure of the present invention will be described in detail below with reference to the accompanying drawings.

Example one

As shown in fig. 1, the second combustion chamber with a settling dust removal structure provided by the embodiment of the present invention includes a chamber body 1 and a settling component for separating dust in flue gas, where the settling component includes a processing chamber 21 disposed inside the chamber body 1, an air inlet 22 disposed on one side of the processing chamber 21, a plurality of first ash blocking walls 23 disposed on an inner top wall of the processing chamber 21, a plurality of second ash blocking walls 24 disposed on an inner bottom wall of the processing chamber 21 and matched with the first ash blocking walls 23, a plurality of ash collecting pits 25 disposed on a bottom wall of the chamber body 1, and an air outlet 26 disposed on an upper wall of the chamber body 1 and communicated with the processing chamber 21, the plurality of first ash blocking walls 23 and the plurality of second ash blocking walls 24 are alternately disposed at intervals, the first ash blocking walls 23 and the second ash blocking walls 24 are partially overlapped on a side projection plane, and the ash collecting pits 25 are in a hopper shape.

According to the utility model, by arranging the chamber body 1 and the sedimentation part, the volume of the secondary combustion chamber is determined according to the amount of flue gas/gas to be processed in the secondary combustion chamber and the required residence time of the flue gas/gas in the secondary combustion chamber body 1; the settling velocity of the dust is determined according to the size of dust particles in the smoke to be intercepted, the settling velocity of the dust is determined according to the volume of a secondary combustion chamber, the distribution and the quantity of the ash blocking walls, the ash collecting pit 25 and the ash outlet 31 are comprehensively considered, the smoke is decomposed in the processing cavity 21, the air inlet 22 is located at the lower position, the first ash blocking walls 23 and the second ash blocking walls 24 can form a zigzag winding channel, the mass of the dust in the smoke/gas is large, when the smoke/gas passes through the zigzag winding channel, the flowing direction of the airflow is continuously changed, so that dust particles cannot be timely changed due to large inertia, the dust particles collide with the first ash blocking walls 23 and the second ash blocking walls 24, the dust particles are intercepted and fall into the ash collecting pit 25, and the settled gas is discharged from the air outlet 26.

Referring to fig. 1, the bottom of the ash collecting pit 25 is provided with an ash outlet 31, and a valve 32 is arranged on the ash outlet 31.

Adopt above-mentioned scheme: through setting up ash hole 31 and valve 32, can conveniently clear up the accumulational dust in the process chamber 21, valve 32 can select automatic opening or manual opening.

Example two

Referring to fig. 2, the other structure remains the same, which is different from the first embodiment: the top of second ash blocking wall 24 is equipped with the first slope 41 towards gas outlet 26 one side slope, through setting up first slope 41, can prevent that the dust from piling up at second ash blocking wall 24 top, convenient clearance.

EXAMPLE III

Referring to fig. 3, the other structure remains the same, which differs from the first embodiment: the bottom of first ash blocking wall 23 is equipped with first extension 51 that sets up along vertical direction, the top of second ash blocking wall 24 is equipped with second extension 52 that sets up along vertical direction, the width of first extension 51 is less than first ash blocking wall 23, the width of second extension 52 is less than second ash blocking wall 24, first extension 51 is located the left side of first ash blocking wall 23, second extension 52 is located the right side of second ash blocking wall 24, be equipped with the second rake 53 that links to each other with second extension 52 on the left side roof of second ash blocking wall 24, through setting up first extension 51, second extension 52 and second rake 53, can prolong flue gas channel's length, improve the stroke of flue gas, improve the effect of subsiding of dust, second rake 53 can prevent that the dust from piling up at second ash blocking wall 24 top.

Example four

Referring to fig. 4, the other structure remains the same, which is different from the first embodiment: the bottom of first ash blocking wall 23 is equipped with third extension 61 that sets up along the horizontal direction, the top of second ash blocking wall 24 is equipped with the fourth extension 62 that sets up along the horizontal direction, third extension 61 sets up with fourth extension 62 in opposite directions, third extension 61 and fourth extension 62 partially coincide on the plane of projection of overlooking, the top right side of third extension 61 is equipped with the third rake 63 towards the upper left side slope, through setting up third extension 61, fourth extension 62 and third rake 63, can further prolong flue gas channel's length, makes the flow direction of flue gas more changeable, improves the stroke of flue gas, improves the settlement effect of dust, and third rake 63 can prevent that the dust from piling up at third extension 61 top.

EXAMPLE five

Referring to fig. 5, the other structure remains the same, which is different from the first embodiment: the bottom of the first dust blocking wall 23 is provided with a fourth inclined part 71 which inclines towards the lower right, the top of the second dust blocking wall 24 is provided with a fifth inclined part 72 which inclines towards the upper left, the fourth inclined part 71 and the fifth inclined part 72 are partially overlapped on the overlooked projection plane, the length of a flue gas channel can be further prolonged by arranging the fourth inclined part 71 and the fifth inclined part 72, the flow direction of flue gas is more variable, the stroke of flue gas is improved, the sedimentation effect of dust is improved, and the fourth inclined part 71 and the fifth inclined part 72 are obliquely arranged, so that dust accumulation can be prevented.

EXAMPLE six

Referring to fig. 6, the other structure remains the same, which is different from the first embodiment: a first arc-shaped part 81 extending towards the lower right is arranged at the bottom of the first ash blocking wall 23, a second arc-shaped part 82 extending towards the upper left is arranged at the top of the second ash blocking wall 24, and the first arc-shaped part 81 and the second arc-shaped part 82 are partially overlapped on the overlooked projection plane; through setting up first arc portion 81 and second arc portion 82, can further prolong flue gas channel's length, make the flow direction of flue gas more changeable, improve the stroke of flue gas, improve the effect of subsiding of dust, because first arc portion 81 and second arc portion 82 are the arc, can make the gas flow more smooth and easy.

The working principle of the utility model is as follows:

in use, flue gas is guided into the processing chamber 21 through the gas inlet 22, and then blocked by the first dust blocking wall 23 and the second dust blocking wall 24, so that the direction of the gas flow is changed continuously, because the weight of the dust in the flue gas is larger, the dust falls downwards, part of the dust collides with the first dust blocking wall 23 and the second dust blocking wall 24 and is blocked on the dust collecting pit 25 at the bottom of the second dust blocking wall 24, and when more dust is accumulated in the dust collecting pit 25, the valve 32 can be opened, so that the dust is discharged from the dust outlet 31.

In summary, the following steps: this two combustion chambers from area subsides dust removal structure through setting up the room body 1 and subside the part, under the condition that does not increase equipment quantity, both realized the high temperature treatment to flue gas/gas, can carry out a considerable quantity to the dust in the flue gas/gas again and get rid of. Meanwhile, because the first ash blocking wall 23 and the second ash blocking wall 24 are arranged in the chamber body 1, when the flue gas/gas flows in the chamber body 1, the direction is continuously changed, the flow of the flue gas is fully in a turbulent flow state, the sedimentation effect of dust is improved, the full combustion of the flue gas is ensured, the emission of harmful substances such as dioxin and the like is reduced, and the problems that the dust in the flue gas is not thoroughly treated in the conventional secondary chamber, the burden and consumption of subsequent equipment can be increased, and other flue gas treatment equipment is blocked and damaged easily are solved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a two combustion chambers from area subsides dust removal structure, includes the room body (1) and is arranged in the settlement part of separating the dust in the flue gas, its characterized in that: the sedimentation component comprises a treatment cavity (21) arranged in a chamber body (1), an air inlet (22) arranged on one side of the treatment cavity (21), a plurality of first ash blocking walls (23) arranged on the inner top wall of the treatment cavity (21), a plurality of second ash blocking walls (24) arranged on the inner bottom wall of the treatment cavity (21) and matched with the first ash blocking walls (23), a plurality of ash collecting pits (25) arranged on the bottom wall of the chamber body (1) and an air outlet (26) arranged on the top wall of the chamber body (1) and communicated with the treatment cavity (21), wherein the first ash blocking walls (23) and the second ash blocking walls (24) are alternately arranged at intervals, the first ash blocking walls (23) and the second ash blocking walls (24) are partially overlapped on the side projection surface, and the ash collecting pits (25) are in a hopper shape.

2. The secondary combustion chamber with the settling dust removing structure as set forth in claim 1, wherein: the bottom of the ash collecting pit (25) is provided with an ash outlet (31), and the ash outlet (31) is provided with a valve (32).

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