Composite combustion treatment device for organic waste gas and coal-based solid waste

Abstract

The utility model discloses a combined type combustion treatment device for organic waste gas and coal-based solid waste, and belongs to the technical field of solid waste treatment equipment. The combustor comprises a combustor body, a combustion chamber is formed in the combustor body, and the combustor body is provided with a first fuel channel, a first solid waste channel, a second fuel channel and a second solid waste channel which are sequentially arranged in a sleeved mode from inside to outside. The first fuel channel, the first solid waste channel, the second fuel channel and the second solid waste channel are each sleeved with an air distribution channel. According to the combined type combustion treatment device for the organic waste gas and the coal-based solid waste, fuel is used for driving a small amount of solid waste to be combusted, then heat energy generated by combustion is used for heat tracing of a large amount of solid waste, and finally sufficient combustion of the large amount of solid waste is achieved. Therefore, the problem that traditional coal-based solid waste is difficult to burn due to low heat value can be effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to solid waste treatment equipment technical field more specifically, relate to a kind of for organic waste, coal-based solid waste's composite combustion treatment device. BACKGROUND

[0002] Solid waste will be produced in the process of coal exploitation, such as coal gangue produced in the process of coal exploitation, fly ash produced in the process of coal combustion, gasification ash produced in the process of coal chemical conversion and so on. These solid wastes are collectively referred to as coal-based solid waste. Traditional disposal mainly relies on landfill storage, which not only pollutes the environment, but also wastes resources.

[0003] In recent years, with the improvement of environmental standards, solid waste treatment has been raised to a high level. Incineration is an important direction for solid waste reduction, harmlessness and resource utilization. Incineration makes use of the limited heat of solid waste, and the remaining material can be used as raw material for building material production, turning waste into treasure and maximizing resource utilization. However, coal-based solid waste has low carbon content, low calorific value and ultra-low volatile matter, which belongs to difficult-to-burn fuel, making combustion and utilization difficult, thus limiting the combustion of coal-based solid waste.

[0004] After searching, CN212565758U discloses a low-calorific-value fuel gas burner. The application includes a housing, an igniter, an air inlet pipe, a primary air first passage, a primary air second passage, the housing has a combustion chamber inside, and the housing is provided with a conical port directly communicating with the combustion chamber; a guide pipe is arranged on the primary air second passage, one end of the guide pipe communicates with the primary air second passage, the other end of the guide pipe extends through the conical port and extends to the inlet of the combustion chamber, the primary air first passage is arranged outside the guide pipe, and the primary air first passage cooperates with the conical port, the air outlet end of the air inlet pipe is arranged inside the guide pipe, and the air outlet of the air inlet pipe extends to the inlet of the combustion chamber, and secondary air enters the combustion area on the downstream housing of the combustion chamber. When burning low-calorific-value fuel gas, the application can adjust the amount of combustion air in two stages according to the combustion condition of low-calorific-value fuel gas, and can continuously and stably burn low-calorific-value fuel gas to solve the problem of burning low-calorific-value fuel gas. However, the industry still needs more diverse designs to solve the problem of difficult combustion of low-calorific-value solid waste. UTILITY MODEL CONTENTS

[0005] 1. Problem to be solved

[0006] In view of at least some problems existing in the prior art, the utility model provides a kind of for organic waste gas, coal-based solid waste's composite combustion treatment device, its purpose is to solve the existing coal-based solid waste, because its calorific value is lower, and the problem of greater combustion difficulty caused.

[0007] 2、Technical scheme

[0008] In order to solve the above problems, the technical scheme adopted by the utility model is as follows:

[0009] The utility model discloses a kind of for organic waste gas, coal-based solid waste's composite combustion treatment device, including combustor body, the combustor body is formed with combustion chamber, the combustor body is equipped with from inside to outside sequentially sleeved first fuel passage, first solid waste passage, second fuel passage and second solid waste passage;Wherein, the first fuel passage, first solid waste passage, second fuel passage and second solid waste passage are each sleeved with one air distribution passage.

[0010] Further, the combustor body is equipped with flue gas outlet, and heat exchanger is equipped between the flue gas outlet and the inlet of air distribution passage.

[0011] Further, the heat exchanger is provided with two in front and back along the direction of high-temperature flue gas flow, wherein the heat load passage outlet of the heat exchanger in front is communicated with the inlet of air distribution passage outside first fuel passage;The heat load passage outlet of heat exchanger in back is divided into three roads, and is communicated with the inlet of other three air distribution passages respectively.

[0012] Further, the fuel that is passed into the first fuel passage, second fuel passage is organic waste gas.

[0013] Further, the solid waste that is passed into the first solid waste passage, second solid waste passage is coal-based solid waste.

[0014] Further, the air that is passed into the air distribution passage is heated.

[0015] Further, the combustor body is equipped with igniter, and the inner wall of combustor body is equipped with refractory layer.

[0016] 3、Beneficial effects

[0017] Compared with prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model relates to a kind of composite combustion treatment device for organic waste gas, coal-based solid waste, including two fuel channels and two solid waste channels, and each channel is equipped with air distribution channel, first utilize fuel to drive a small amount of solid waste to burn;Then the heat energy generated by combustion is used for a large amount of solid waste to heat, to finally realize the full combustion of a large amount of solid waste, so that the problem that traditional coal-based solid waste is difficult to burn due to low calorific value can be effectively solved.Simultaneously, since the first solid waste channel is located between the two fuel channels, so that the small amount of solid waste in the combustion chamber is surrounded by the fuel introduced by the two fuel channels, which is also conducive to the preferential combustion of a small amount of combustion.

[0019] (2) The utility model relates to a kind of composite combustion treatment device for organic waste gas, coal-based solid waste, heat exchanger is equipped between the flue gas outlet on combustor body and the entrance of air distribution channel, high-temperature flue gas generated after combustion in combustor body is used to heat exchange air, then the air after heat exchange is used as air distribution, which can effectively improve the utilization rate of heat. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of a kind of composite combustion treatment device for organic waste gas, coal-based solid waste of the utility model.

[0021] In the figure: 1, combustor body;11, combustion chamber;12, refractory layer;

[0022] 21, first fuel channel;22, second fuel channel;31, first solid waste channel;32, second solid waste channel;41, first air distribution channel;42, second air distribution channel;43, third air distribution channel;44, fourth air distribution channel;51, first heat exchanger;52, second heat exchanger. DETAILED DESCRIPTION

[0023] To further understand the contents of the utility model, the utility model is described in detail in conjunction with the drawings.

[0024] In the description of the utility model, it should be explained that the orientation or position relationship indicated by terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicative or implied relative importance.

[0025] The utility model is further described below in conjunction with specific embodiment.

[0026] As Figure 1 The organic waste gas and coal-based solid waste composite combustion treatment device of the embodiment includes a burner body 1 and a plurality of channels arranged on the burner body 1. The burner body 1 is provided with an igniter, and the inner wall of the burner body 1 is provided with a refractory layer 12 to form an adiabatic combustion chamber 11, thereby providing a good reaction atmosphere and reaction space for the combustion of solid waste. The plurality of channels are respectively used to introduce fuel, combustion-supporting gas and solid waste into the burner body 1, and finally complete the combustion treatment of the solid waste in the combustion chamber 11.

[0027] Specifically, the channels include two groups of fuel channels, two groups of solid waste channels and four groups of air distribution channels. For the convenience of description, the two groups of fuel channels are defined as a first fuel channel 21 and a second fuel channel 22, the two groups of solid waste channels are defined as a first solid waste channel 31 and a second solid waste channel 32, and the four groups of air distribution channels are defined as a first air distribution channel 41, a second air distribution channel 42, a third air distribution channel 43 and a fourth air distribution channel 44. The plurality of channels are arranged in a nested manner, and from the inside to the outside, they are the first fuel channel 21, the first air distribution channel 41, the first solid waste channel 31, the second air distribution channel 42, the second fuel channel 22, the third air distribution channel 43, the second solid waste channel 32 and the fourth air distribution channel 44.

[0028] In the working process of the organic waste gas and coal-based solid waste composite combustion treatment device of the embodiment, fuel and combustion-supporting gas are introduced into the combustion chamber 11 through the first fuel channel 21, the second fuel channel 22 and the air distribution channel. At the same time, a small amount of solid waste is introduced into the combustion chamber 11 through the first solid waste channel 31. At this time, the small amount of solid waste is surrounded by fuel, and the combustion of the fuel can preferentially ignite the small amount of solid waste. Then, a large amount of solid waste is introduced into the combustion chamber 11 through the second solid waste channel 32, and the temperature generated by the previous combustion is utilized. At the same time, the newly added fuel and the air distribution control the combustion temperature at about 1100℃, realize the continuous and stable combustion of the fuel in the combustion chamber 11, and finally realize the full combustion of the large amount of solid waste. Preferably, the mass ratio of the solid waste introduced from the first solid waste channel 31 and the second solid waste channel 32 is about 1:9.

[0029] In the embodiment, the solid waste introduced into the first solid waste channel 31 and the second solid waste channel 32 is coal-based solid waste. The combustion-supporting gas introduced into the air distribution channel is heated air, and the mixture of the hot air and the solid waste and the fuel can further reduce the difficulty of the combustion of the solid waste. At the same time, the fuel introduced into the first fuel channel 21 and the second fuel channel 22 is organic waste gas. The heat generated by the combustion of the organic waste gas can heat the low-calorific-value solid waste which is difficult to burn alone, thereby treating the organic waste gas and solving the problem of the difficulty in treating the coal-based solid waste, and achieving the full utilization of resources.

[0030] As a preferred embodiment of the composite combustion treatment device for organic waste gas and coal-based solid waste, the combustor body 1 is provided with a flue gas outlet, and a heat exchanger is arranged between the flue gas outlet and the inlet of the air distribution channel, so that the high-temperature flue gas generated in the combustion chamber 11 is used to heat the air, and then the heated air is used as the air distribution, which can effectively improve the utilization rate of heat.

[0031] Specifically, the heat exchanger is arranged in front of and behind the direction of the high-temperature flue gas flow, and is respectively a first heat exchanger 51 and a second heat exchanger 52. The heat source channel inlet of the first heat exchanger 51 in front is connected with the flue gas outlet, and the heat source channel outlet is connected with the heat source channel inlet of the second heat exchanger 52. The heat load channel inlet of the first heat exchanger 51 is connected with the cold air source, and the outlet is connected with the inlet of the first air distribution channel 41. The heat load channel inlet of the second heat exchanger 52 is connected with the cold air source, and the outlet is divided into three paths, which are respectively connected with the second air distribution channel 42, the third air distribution channel 43 and the fourth air distribution channel 44. In the embodiment, the high-temperature flue gas flowing out of the flue gas outlet is about 900℃, and after being heated by the first heat exchanger 51 and the cold air, high-temperature air of about 750℃ is formed. The part of high-temperature air enters the combustion chamber 11 through the air distribution channel and mixes with a small amount of solid waste, which is helpful to the ignition operation of the small amount of solid waste. The high-temperature flue gas after the first heat exchange enters the second heat exchanger 52 to continue heat exchange with the cold air, and the secondary high-temperature air of about 600℃ is formed; the part of secondary high-temperature air enters the combustion chamber 11 through the air distribution channel and mixes with a large amount of solid waste for heating. It should be noted that two heat exchangers are used for two-stage heat exchange in the embodiment, because a more sufficient heat source is needed for the initial ignition of a small amount of solid waste. Therefore, the first heat exchanger 51 is used for one-time heat exchange to form high-temperature air with higher temperature, and the high-temperature air is used for auxiliary heating, which is helpful to ensure that the small amount of solid waste can be ignited smoothly.

[0032] The composite combustion treatment device for organic waste gas and coal-based solid waste in the embodiment first uses fuel to drive a small amount of solid waste to burn; then uses the heat energy generated by combustion to heat a large amount of solid waste, so as to finally realize the full combustion of a large amount of solid waste, thereby effectively solving the problem that the traditional coal-based solid waste is difficult to burn due to low calorific value. At the same time, the heat of the high-temperature flue gas is used to heat the air to assist the heating, which can effectively improve the utilization rate of heat.

[0033] The above describes the utility model and its embodiments in a schematic manner, and the description is not restrictive, and the drawings only show one of the embodiments of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are designed without creativity, and all should belong to the protection scope of the utility model.

Claims

1. A composite combustion treatment device for organic waste gas and coal-based solid waste, comprising a burner body (1), a combustion chamber (11) is formed in the burner body (1), characterized in that: The combustor body (1) is provided with a first fuel channel (21), a first solid waste channel (31), a second fuel channel (22) and a second solid waste channel (32) from inside to outside; wherein, the first fuel channel (21), the first solid waste channel (31), the second fuel channel (22) and the second solid waste channel (32) are each provided with an air distribution channel.

2. A combined combustion treatment device for organic waste gas, coal-based solid waste according to claim 1, characterized in that: The combustor body (1) is provided with a flue gas outlet, and the flue gas outlet and the inlet of the air distribution channel are provided with a heat exchanger.

3. The combined combustion treatment device for organic waste gas, coal-based solid waste according to claim 2, characterized in that: The heat exchanger is provided with two heat exchangers in front and back along the direction of high-temperature flue gas flow, wherein the heat load channel outlet of the heat exchanger in front is communicated with the inlet of the air distribution channel outside the first fuel channel (21); the heat load channel outlet of the heat exchanger in back is divided into three paths and is respectively communicated with the inlets of the other three air distribution channels.

4. The combined combustion treatment device for organic waste gas, coal-based solid waste according to claim 1, characterized in that: The fuel introduced into the first fuel channel (21) and the second fuel channel (22) is organic waste gas.

5. The combined combustion treatment device for organic waste gas, coal-based solid waste according to claim 1, characterized in that: The solid waste introduced into the first solid waste channel (31) and the second solid waste channel (32) is coal-based solid waste.

6. The combined combustion treatment device for organic waste gas, coal-based solid waste according to claim 1, characterized in that: The air introduced into the air distribution channel is heated air.

7. The combined combustion treatment device for organic waste gas, coal-based solid waste according to any one of claims 1-6, characterized in that: The combustor body (1) is provided with an igniter, and the inner wall of the combustor body (1) is provided with a refractory layer (12).

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