CN113237067A

CN113237067A - Heat-storage wind-equalizing functional incinerator

Info

Publication number: CN113237067A
Application number: CN202110603527.3A
Authority: CN
Inventors: 董小松; 许柱; 李宝荣; 茅佳俊; 查浩; 葛珉
Original assignee: Yangzhou Haitong Electronic Technology Co ltd
Current assignee: Yangzhou Haitong Electronic Technology Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-08-10

Abstract

The invention provides a heat-storage wind-equalizing functional incinerator, which comprises a waste gas inlet, an incinerator body, a grid, a heat-insulating layer, a waste gas outlet, a combustion unit, a baffle plate, a front combustion chamber, a heat-storage combustion chamber, a grid supporting plate, a rear combustion chamber and a base, wherein the waste gas inlet and the waste gas outlet are respectively arranged at two ends of the incinerator body; an insulating layer is laid in the incinerator body, and a combustion unit, a baffle plate, a front combustion chamber, a heat accumulation combustion chamber and a rear combustion chamber are sequentially arranged from a waste gas inlet to an outlet; the heat accumulation combustion chamber is made of heat accumulation materials and is supported by a grid which is fixed on a grid supporting plate which is welded on the incinerator body. Compared with the existing incinerator, the invention has the advantages of increasing the heat storage function, improving the uniform air performance, fully and stably burning the waste gas and saving energy.

Description

Heat-storage wind-equalizing functional incinerator

Technical Field

The invention relates to the field of waste gas incineration, in particular to a heat-storage and air-balancing incinerator which can efficiently and stably treat waste gas by using an incineration technology.

Background

Organic waste gases (VOCs) are one of the main sources of air pollution and are also the main objects of comprehensive treatment of environmental pollution. The existing incineration technology can completely oxidize and decompose organic components in organic waste gas to generate CO harmless to the environment₂And H₂And O is discharged, which is one of the most effective and mature methods for treating the VOCs waste gas.

The direct combustion type waste gas incinerator and the recovery type thermal incineration system which are designed at present are difficult to enable waste gas to uniformly pass through the incinerator during design, and difficult to control the temperature in the incinerator to realize small-range fluctuation, so that the oxidative decomposition of organic matters is incomplete, the fuel consumption is increased, a layer of thick and thick sediments are deposited on equipment behind the incinerator, and the exhaust emission of the incinerator exceeds the standard.

Therefore, how to solve the problem of uniform distribution of the waste gas of the incinerator when passing through the incinerator during design and to solve the problem of maintaining a longer retention time of the waste gas at a high temperature section, thereby maintaining energy saving, high efficiency and stable operation of the incinerator, is a technical problem to be solved urgently by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide a heat storage and air equalization function incinerator, which improves the performance of the incinerator in the aspects of heat storage and air equalization.

The technical solution for realizing the purpose of the invention is as follows: a heat-accumulating and air-equalizing incinerator comprises a waste gas inlet, an incinerator body, a grid, a heat-insulating layer, a waste gas outlet, a combustion unit, a baffle plate, a front combustion chamber, a heat-accumulating combustion chamber, a grid supporting plate, a rear combustion chamber and a base, wherein the waste gas inlet and the waste gas outlet are respectively arranged at two ends of the incinerator body; an insulating layer is laid in the incinerator body, and a combustion unit, a baffle plate, a front combustion chamber, a heat accumulation combustion chamber and a rear combustion chamber are sequentially arranged from a waste gas inlet to an outlet; the heat accumulation combustion chamber is made of heat accumulation materials and is supported by a grid which is fixed on a grid supporting plate which is welded on the incinerator body.

Compared with the prior art, the invention has the following remarkable advantages: 1) the heat storage layer is added in the incinerator, when the combustion temperature is high due to high reactant concentration and the like, the heat storage layer stores heat, and when the combustion temperature is low due to low reactant concentration and the like, the heat storage layer releases the heat, so that the contact time of reactants in a high-temperature section is ensured, waste gas is fully reacted and converted into harmless substances, the influence of fluctuation of working conditions on the treatment efficiency is avoided, and the incinerator is kept in an efficient state; 2) the added heat storage layer has good air equalizing effect, can ensure that the treated waste gas uniformly passes through the incinerator, and is favorable for mutual diffusion and heat transfer among the waste gas. 3) The invention can lead the incinerator to operate more energy-saving, high-efficiency and stable from the structural design.

Drawings

FIG. 1 is a schematic view showing the construction of an incinerator apparatus according to the present invention.

Fig. 2 is a schematic view of the structure at the baffle of the present invention.

FIG. 3 is a schematic view of the structure at the heat storage layer of the present invention.

Fig. 4 is a schematic view of the structure at the grid of the present invention.

In the figure, 1-a waste gas inlet, 2-an incinerator body, 3-a grid, 4-a heat insulation layer, 5-a waste gas outlet, 6-a combustion unit, 7-a baffle, 8-a front combustion chamber, 9-a heat storage material, 10-a grid support plate, 11-a rear combustion chamber and 12-a base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

As shown in fig. 1, a heat-accumulating and air-equalizing incinerator comprises a waste gas inlet 1, an incinerator body 2, a grid 3, a waste gas outlet 5, a combustion unit 6, a baffle 7, a front combustion chamber 8, a heat-accumulating combustion chamber, a grid support plate 10, a rear combustion chamber 11 and a base 12, wherein the waste gas inlet 1 and the waste gas outlet 5 are respectively arranged at two ends of the incinerator body 2; an insulating layer 4 is laid in the incinerator body 2, and a combustion unit 6, a baffle 7, a front combustion chamber 8, a heat accumulation combustion chamber and a rear combustion chamber 11 are sequentially arranged from a waste gas inlet to an outlet; the heat accumulation combustion chamber is composed of a heat accumulation material 9, and a grid is arranged on the air outlet side of the heat accumulation material; the grid is fixed in the grid backup pad, the grid backup pad welds on burning furnace body.

In a preferred embodiment, the incinerator body 2 has a cylindrical or rectangular shape.

As a preferred embodiment, the ventilation opening in the baffle 7 is annular, and the surface is paved with the heat preservation layer 4 for changing the wind direction of the inlet air, so that the wind direction of the treated gas is parallel to the incineration equipment and is positioned on the axis of the equipment, and the waste gas is conveniently and uniformly distributed around when entering the combustion chamber. .

In a preferred embodiment, the burner of the combustion unit 6 is located on the axis where the wind speed of the exhaust gas is concentrated through a baffle, and is in the same direction with the direction of the exhaust gas, which is beneficial to heating the exhaust gas.

In a preferred embodiment, the size of the pre-combustion chamber 8 is such that the exhaust gas space residence time is between 0.5s and 1 s.

In a preferred embodiment, the thickness of the heat storage material is usually 0.6 to 1.5m, and the air velocity through the heat storage material 8 is 1 to 1.5 Nm/s.

In a preferred embodiment, the post combustor 11 is sized to provide an exhaust gas space residence time of from 0.2s to 1 s.

In a preferred embodiment, the heat storage material 9 is a material such as honeycomb ceramics, plate-type honeycomb ceramics, toothed honeycomb ceramics, layered honeycomb ceramics, or the like, preferably layered honeycomb ceramics.

As a preferred embodiment, the grid material has high temperature resistance, and is generally made of 310s stainless steel.

Principle of operation

Flue gas gets into from waste gas entry 1, it is unanimous with the axial that burns burning furnace to make the wind direction through baffle 7, flame syntropy with burning unit 6, combustor 8 diffuses and heats in the front, and take place the preliminary combustion reaction, the gaseous rethread heat accumulation layer of preliminary combustion, further even diffusion, and take place the heat exchange with the heat accumulator contact simultaneously, make gaseous reaction of higher temperature section further abundant again, the gaseous of intensive mixing and reaction is through postcombustion chamber 11 further contact and reaction, guarantee the more efficient reaction of organic component in the waste gas, the gaseous 5 discharges through exhaust outlet of exhaust outlet after purifying finally.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A heat-storage air-equalizing functional incinerator is characterized by comprising a waste gas inlet (1), an incinerator body (2), a grid (3), a heat-insulating layer (4), a waste gas outlet (5), a combustion unit (6), a baffle (7), a front combustion chamber (8), a heat-storage combustion chamber, a grid support plate (10), a rear combustion chamber (11) and a base (12), wherein the waste gas inlet (1) and the waste gas outlet (5) are respectively arranged at two ends of the incinerator body (2); an insulating layer (4) is laid in the incinerator body (2), and a combustion unit (6), a baffle plate (7), a front combustion chamber (8), a heat accumulation combustion chamber and a rear combustion chamber (11) are sequentially arranged from a waste gas inlet to an outlet; the heat accumulation combustion chamber is composed of heat accumulation materials (9) and is supported by a grid (3), the grid (3) is fixed on a grid supporting plate (10), and the grid supporting plate (10) is welded on the incinerator body (2).

2. The incinerator with heat storage and air balancing functions according to claim 1, wherein the incinerator body (2) is cylindrical or rectangular.

3. The incinerator with heat storage and air equalization functions according to claim 1, characterized in that the ventilation openings in the baffles (7) are annular, and the surface of the baffles is paved with heat insulation layers (4) for changing the wind direction of inlet air, so that the wind direction of treated gas is parallel to the incinerator and is positioned on the axis of the incinerator, and waste gas is uniformly distributed around when entering the combustion chamber.

4. The incinerator with heat storage and air equalization functions according to claim 1, wherein the burners of the combustion unit (6) are located on the axis where the exhaust gas wind speed is concentrated and are in the same direction as the exhaust gas, so that the exhaust gas is heated.

5. The incinerator according to claim 1, wherein the size of the front combustion chamber (8) is such that the exhaust gas space residence time is 0.5s to 1 s.

6. The incinerator according to claim 1, wherein the thickness of the heat-accumulating material is 0.6-1.5 m, and the air velocity through the heat-accumulating material (8) is 1-1.5 Nm/s.

7. The incinerator according to claim 1, wherein said post-combustion chamber (11) is sized so that the exhaust gas space residence time is 0.2s to 1 s.

8. The incinerator according to claim 1, wherein the heat-accumulating and wind-equalizing function is selected from the group consisting of honeycomb ceramics, plate-type honeycomb ceramics, toothed honeycomb ceramics, and layered honeycomb ceramics.

9. The incinerator of claim 1, wherein said grate material is made of high temperature resistant 310s stainless steel.