Air supply system of waste incineration device

Abstract

The utility model relates to the technical field of biogas energy utilization, in particular to an air supply system of a waste incineration device, which comprises an air supply pipeline, a preheating cavity is communicated with the air supply pipeline, and a linear burner is arranged in the preheating cavity; the combustion fan is communicated with the linear combustion engine and provides oxygen-containing gas for the linear combustion engine; the marsh gas supply device is communicated with the combustion fan and provides marsh gas transmission for the linear combustion engine; and the oxygen-containing gas and the biogas can be mixed and combusted in the linear combustor to heat the gas in the preheating cavity. Through the arrangement of the linear combustion engine on the air supply pipeline, energy generated by combustion of biogas energy in the combustion engine is used for heating primary air in the preheating cavity, the utilization rate of the biogas energy can be increased, meanwhile, consumption of external energy of primary air preheating can be reduced, the treatment mode of the biogas energy is optimized, and the energy consumption is reduced. The utilization rate of biogas energy is improved, and waste of biogas energy is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a marsh gas energy utilization technical field, especially a garbage incineration device air supply system. BACKGROUND

[0002] Marsh gas is a renewable energy, which is a flammable mixed gas produced by the microbial decomposition and fermentation of organic matter under anaerobic conditions. Because marsh gas does not produce harmful substances, it is considered as clean energy.

[0003] The existing marsh gas treatment technology mainly has two ways of discharging torch and entering furnace for blending. In the discharging torch way, marsh gas is directly combusted and treated, causing waste of marsh gas energy. In the entering furnace for blending way, because the combustion characteristics of marsh gas are different from those of garbage, the heat value and composition of marsh gas are different from those of the gas produced by garbage combustion, leading to uneven combustion and appearing of partial combustion problem, affecting the stability and efficiency of combustion in the garbage incinerator hearth, causing reduction of combustion efficiency and low utilization rate of marsh gas energy, and causing waste of marsh gas energy. SUMMARY

[0004] The utility model aims at providing a garbage incineration device air supply system, which optimizes the treatment way of marsh gas energy, improves the utilization rate of marsh gas energy, and reduces the waste of marsh gas energy.

[0005] To solve the above technical problems, the embodiment of the utility model provides a technical scheme as follows:

[0006] A garbage incineration device air supply system comprises a wind supply pipeline, a preheating cavity is connected on the wind supply pipeline, and a linear combustion machine is arranged in the preheating cavity; a combustion air fan is connected with the linear combustion machine and provides oxygen-containing gas to the linear combustion machine; a marsh gas supply device is connected with the combustion air fan and provides marsh gas transmission to the linear combustion machine; the oxygen-containing gas and the marsh gas can be mixed and combusted in the linear combustion machine, and the gas in the preheating cavity is heated.

[0007] Further, the marsh gas supply device comprises a marsh gas supply pipeline, a marsh gas induced draft fan and a marsh gas valve group are arranged on the marsh gas supply pipeline, and the marsh gas valve group is used for adjusting the gas flow in the marsh gas supply pipeline.

[0008] Further, the wind supply pipeline comprises a primary air pipeline arranged upstream of the preheating cavity and a preheating air pipeline arranged downstream of the preheating cavity, and a plurality of air supply pipelines are connected with the preheating air pipeline.

[0009] Further, an adjusting valve is arranged between the preheating air pipeline and the air supply pipeline, and the adjusting valve is used for adjusting the gas flow in the air supply pipeline.

[0010] Further, a temperature sensor is arranged on the preheating air pipeline.

[0011] Further, the control device is in communication with the temperature sensor and the linear combustion machine, and the control device is capable of adjusting the combustion load of the linear combustion machine according to the data information of the temperature sensor.

[0012] Further, the output adjustment ratio of the linear combustion machine can reach 20:1.

[0013] Further, the volume percentage vol% of methane in the biogas is greater than or equal to 60%.

[0014] The garbage incineration device air supply system provided by the utility model is equivalent to the prior art, the linear combustion machine is arranged on the air supply pipeline, the biogas energy can be more fully combusted in the linear combustion machine, the energy of the biogas energy combusted in the combustion machine is used for heating the primary air gas in the preheating cavity, the utilization rate of the biogas energy can be improved, the consumption of external energy for primary air preheating can be saved, the treatment mode of the biogas energy is optimized, the utilization rate of the biogas energy is improved, and the waste of the biogas energy is reduced; the combustion load of the linear combustion machine is controlled by the control device and the temperature sensor, which is beneficial to guarantee the stability and safety of the biogas energy combustion process and optimize the consumption and emission control of the biogas energy. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document, these example are not to be construed as limiting the embodiments, elements having the same reference numerals in different figures represent like elements, unless otherwise indicated, the figures in the drawings are not to scale.

[0016] Figure 1 is a garbage incineration device air supply system structure schematic view in the utility model embodiment.

[0017] Mark explanation: 1, biogas supply device;11, biogas supply pipeline;10, biogas induced draft fan;20, biogas valve group;30, linear combustion machine;40, air supply fan;50, preheating cavity;60, combustion air fan;70, temperature sensor;80, air supply pipeline;81, primary air pipe;82, preheating air pipe;83, air supply pipeline;84, regulating valve, 90, garbage incineration device. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the various embodiments of the utility model, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed by the various claims of the present application can be implemented.

[0019] In order to improve the efficiency of waste incineration, the primary air required by the waste incineration device 90 needs to be preheated, and the waste is dried so that the waste can be fully burned.

[0020] As shown in Figure 1 An embodiment of the utility model relates to a waste incineration device air supply system, comprising: air supply pipeline 80, preheating cavity 50 is connected on air supply pipeline 80, linear combustion machine 30 is arranged in preheating cavity 50;Combustion air fan 60, combustion air fan 60 is communicated with linear combustion machine 30 and provides oxygen-containing gas for linear combustion machine 30;Biogas supply device 1, biogas supply device 1 is communicated with combustion air fan 60 and provides biogas transmission for linear combustion machine 30;The oxygen-containing gas and the biogas can be mixed and burned in linear combustion machine 30, and the gas in preheating cavity 50 is heated, the air supply pipeline 80 includes primary air pipe 81 arranged in the upstream of preheating cavity 50 and preheating air pipe 82 arranged in the downstream of preheating cavity 50, preheating air pipe 82 is connected with a plurality of air supply pipelines 83, air supply fan 40 is arranged on primary air pipe 81, and air supply fan 40 is used to guide the transmission of primary air. By the arrangement of linear combustion machine 30 and combustion air fan 60, the oxygen necessary for biogas combustion is provided by combustion air fan 60, the high burnout rate of biogas in the combustion chamber of linear combustion machine 30 is ensured, that is, biogas is fully consumed in the combustion process, the biogas energy utilization efficiency is improved, harmful emissions are reduced, primary air is output to preheating cavity 50 through primary air pipe 81, primary air is preheated in preheating cavity 50 by the combustion of biogas, and the preheated primary air is transmitted to waste incineration device 90 through preheating air pipe 82, so that the waste in waste incineration device 90 is dried, and the waste can be fully burned. Preferably, adjusting valve 84 is arranged between preheating air pipe 82 and air supply pipeline 83, and adjusting valve 84 is used to adjust the flow of gas in air supply pipeline 83. Adjusting valve 84 can adjust the flow of primary air supplied to waste incineration device 90 in corresponding air supply pipeline 83, so as to ensure the burning efficiency of waste in waste incineration device 90 and improve the processing efficiency of waste incineration.

[0021] In one embodiment, the garbage incineration device air supply system is provided with a biogas supply device 1, which comprises a biogas supply pipeline 11, a biogas induced draft fan 10 and a biogas valve group 20 arranged on the biogas supply pipeline 11, and the biogas valve group 20 is used for adjusting the gas flow in the biogas supply pipeline 11. The combustion process of the biogas in the linear burner 30 is controlled by the adjustment of the biogas valve group 20, which is beneficial to the full combustion of the biogas and improves the utilization rate of the biogas energy.

[0022] In one embodiment, the garbage incineration device air supply system further comprises a control device (not shown in the drawings), the preheating air pipeline 82 is provided with a temperature sensor 70, the control device is in communication connection with the temperature sensor 70 and the linear burner 30, and the control device can adjust the combustion load of the linear burner 30 according to the data information of the temperature sensor 70. Preferably, the linear burner 30 has a high burnout rate and a high adjustment ratio, the output adjustment ratio of the linear burner 30 can reach 20:1, can adapt to the large fluctuation of the biogas flow, ensures the combustion efficiency and stability, and increases the stability of the gas temperature in the preheating cavity 50. In one exemplary example, the volume percentage vol% of methane in the biogas is greater than or equal to 60%.

[0023] The garbage incineration device air supply system provided by the utility model can make the biogas energy more fully burn in the linear burner, use the energy of the biogas energy burned in the burner for heating the primary air gas in the preheating cavity, can not only improve the utilization rate of the biogas energy, but also can save the consumption of external energy for primary air preheating, optimizes the processing mode of the biogas energy, improves the utilization rate of the biogas energy and reduces the waste of the biogas energy.

[0024] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the utility model, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the utility model.

Claims

1. A waste incineration device air supply system characterized by comprising: The utility model relates to a linear combustion machine, which comprises: A supply air pipe (80) is provided with a preheating cavity (50) in communication, and a linear combustion machine (30) is arranged in the preheating cavity (50); a combustion-supporting fan (60) is in communication with the linear combustion machine (30) and provides oxygen-containing gas to the linear combustion machine (30); a biogas supply device (1) is in communication with the combustion-supporting fan (60) and provides biogas transmission to the linear combustion machine (30); the oxygen-containing gas and the biogas can be mixed and combusted in the linear combustion machine (30), and the gas in the preheating cavity (50) is heated.

2. The air supply system of a waste incineration device according to claim 1, characterized in that, The biogas supply device (1) comprises a biogas supply pipe (11), and a biogas induced draft fan (10) and a biogas valve group (20) are arranged on the biogas supply pipe (11); the biogas valve group (20) is used for adjusting the gas flow in the biogas supply pipe (11).

3. The air supply system of a waste incineration device according to claim 1, characterized in that, The supply air pipe (80) comprises a primary air pipe (81) arranged upstream of the preheating cavity (50) and a preheating air pipe (82) arranged downstream of the preheating cavity (50); the preheating air pipe (82) is provided with a plurality of air supply pipes (83) in communication.

4. The waste incineration device air supply system according to claim 3, characterized in that, An adjusting valve (84) is arranged between the preheating air pipe (82) and the air supply pipe (83); the adjusting valve (84) is used for adjusting the gas flow in the air supply pipe (83).

5. The waste incineration device air supply system according to claim 3, characterized in that, A temperature sensor (70) is arranged on the preheating air pipe (82).

6. The waste incineration device air supply system according to claim 5, characterized in that, A control device is further arranged, which is in communication connection with the temperature sensor (70) and the linear combustion machine (30); the control device can adjust the combustion load of the linear combustion machine (30) according to the data information of the temperature sensor (70).

7. The waste incineration device air supply system of claim 1, wherein, The output adjustment ratio of the linear combustion machine (30) can reach 20:

1.

8. The waste incineration device air supply system according to any one of claims 1-7, characterized in that, The volume percentage vol% of methane in the biogas is greater than or equal to 60%.

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