Waste gas combustion purification equipment

Abstract

The utility model belongs to the technical field of waste gas treatment, in particular relates to waste gas combustion and purification equipment, and aims to solve the problems that combustible dust contained in the existing waste gas generated in industrial production has certain explosion risk and is easily attached to the inner wall of a pipeline, the combustible dust is generally captured in a filtering and electrostatic dust collection mode, and the waste gas is difficult to combust. In order to solve the problem of explosion risk in the treatment process of electrostatic dust collection, the utility model provides the following scheme: the device comprises a waste gas source, a gas inlet pipeline, a gas outlet pipeline, a motor, a combustion chamber, an inner cylinder, an outer cylinder and a filter screen, the outer cylinder sleeves the outer side of the inner cylinder, a gap between the upper and lower parts of the outer cylinder and the inner cylinder is blocked by a sealing plate, and a cavity is formed between the inner cylinder and the outer cylinder; according to the device, combustible dust in waste gas can be rapidly removed, and the device is simple in structure, high in reliability, low in energy consumption, high in dust removal efficiency, good in effect, small in occupied area and high in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to waste gas combustion purification equipment. Background Art

[0002] During the industrial production process, waste gas containing combustible dust such as fluff and flour is generated. The combustible dust contained in the waste gas has a certain explosion risk and is easy to adhere to the inner wall of the pipe. It is generally captured by filtering and electrostatic dust removal. Electrostatic dust removal has an explosion risk during the treatment process. At the same time, other substances contained in the waste gas, such as volatile organic compounds (VOCs), can cause filter material blockage and electrostatic dust removal plates to become sticky, thereby affecting the normal operation of the equipment.

[0003] The utility model provides a waste gas combustion purification device, which aims to realize the reliable operation of the combustible dust purification process in the waste gas. Utility Model Content

[0004] The utility model provides a waste gas combustion purification device, which solves the problem in the prior art that waste gas containing combustible dust such as fluff, flour, etc. is generated during the industrial production process. The combustible dust contained in the waste gas has a certain explosion risk and is easy to adhere to the inner wall of the pipeline. It is generally captured by filtering and electrostatic dust removal. The electrostatic dust removal has the disadvantage of explosion risk during the processing process.

[0005] The utility model provides the following technical solutions:

[0006] A waste gas combustion purification device comprises a waste gas source, an air intake pipe, an air outlet pipe, a motor, a combustion chamber, an inner cylinder, an outer cylinder, and a filter screen. The outer cylinder is sleeved on the outer side of the inner cylinder, and the gap between the upper and lower parts of the outer cylinder and the inner cylinder is blocked by a sealing plate, so that a cavity is formed between the inner cylinder and the outer cylinder, and the cavity is in a sealed form. The top of the outer cylinder is fixedly connected with an air outlet pipe. The combustion chamber is located in the cavity between the inner cylinder and the outer cylinder, which is a fan-shaped area with an angle of 10° to 90°. The combustion chamber is composed of two baffles and a burner. The combustion chamber is fixed. One side of the outer cylinder is fixedly connected with an air intake pipe connected to the cavity. The outer side of the inner cylinder is detachably fixedly wrapped with a filter screen by screws. The air outlet pipe is connected to the filter screen. After the exhaust gas enters the cavity between the inner cylinder and the outer cylinder through the air intake pipe, it is filtered by the filter screen wrapped on the inner cylinder to complete the purification of dust in the exhaust gas, and then enters the inner cylinder and is discharged through the air outlet pipe. The inner cylinder is connected with a driving structure.

[0007] Preferably, the driving structure includes a motor fixedly connected to the bottom of the outer cylinder, and the motor is fixedly connected to the bottom of the inner cylinder. The motor can drive the inner cylinder to rotate, and the inner cylinder can drive the filter to rotate, so that the filter can circulate and rotate through the combustion chamber, so that the filter is always in a high temperature state to facilitate the adhesion of dust in the exhaust gas.

[0008] Preferably, the motor drives the inner cylinder to rotate via a reduction gear.

[0009] Preferably, the sealing plate of the outer cylinder is wrapped with thermal insulation cotton, and an inspection hole is provided below the outer cylinder, and the inspection hole is blocked by an inspection plate.

[0010] Preferably, the inner cylinder is a hollow structure, and a plurality of through holes are arranged on the outside, and the filtered exhaust gas enters the inner cylinder through the through holes and is discharged from the exhaust pipe.

[0011] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0012] In the utility model, the exhaust gas passes through the air intake pipe into the cavity between the outer cylinder and the inner cylinder. When the exhaust gas passes through the filter, the combustible dust in the exhaust gas adheres to the outside of the filter under the action of filtration and adhesion of the filter. Then the filter and the inner cylinder are connected to an external motor, and driven by the motor to rotate through the combustion chamber. Under the action of the flame burning in the combustion chamber, the dust attached to the filter that is transferred to the combustion chamber area is burned and removed, and the filter is heated. The high-temperature flue gas generated in the combustion chamber and the exhaust gas purified by the filter are mixed in the inner cylinder after passing through the filter, and finally discharged through the exhaust pipe.

[0013] The utility model can realize the rapid removal of combustible dust in the exhaust gas, and has the advantages of simple structure, high reliability, low energy consumption, high dust removal efficiency, good effect, small footprint and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the main cross-sectional structure of an exhaust gas combustion purification device provided by an embodiment of the utility model

[0015] Reference numerals:

[0016] 1. Air outlet pipe; 2. Inner tube; 3. Thermal insulation cotton; 4. Air inlet pipe; 5. Combustion chamber; 6. Filter; 7. Outer tube; 8. Burner; 9. Motor. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms, "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "connection" can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed" means that they are connected to each other and the relative position relationship after connection remains unchanged. The directional terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present utility model.

[0019] In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0020] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0021] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0022] Example 1

[0023] Combined with Figure 1 During the operation of the setting machine in a printing and dyeing factory, a large amount of waste gas containing combustible dust such as fluff will be generated. This scheme takes the waste gas from the setting machine in a printing and dyeing factory as an example.

[0024] Before starting the setting machine, the equipment is first purged. The specific operations are as follows: the air inlet pipe 4 is closed, the air outlet pipe 1 is opened, the fuel pipe of the burner 8 is in a closed state, the air supply fan of the burner 8 is turned on, the motor 9 is started, and the purging begins. The purging time lasts for more than 10 minutes.

[0025] After the purging is completed, the air intake pipe 4 is opened, and the exhaust gas of the setting machine passes through the air intake pipe 4 into the cavity between the outer cylinder 7 and the inner cylinder 2. When passing through the filter screen 6, the combustible dust in the exhaust gas of the setting machine adheres to the outside of the filter screen 6 under the filtering and adhesion of the filter screen 6, and then the filter screen 6 and the inner cylinder 2 are connected to the external motor 9, and rotate through the combustion chamber 5 driven by the motor 9. Under the action of the flame burning in the combustion chamber 5, the dust attached to the filter screen 6 in the combustion chamber 5 area is burned and removed, and the filter screen 6 is heated. The high-temperature flue gas generated in the combustion chamber 5 and the exhaust gas of the setting machine purified by the filter screen 6 are mixed in the inner cylinder 2 after passing through the filter screen 6, and finally discharged through the air outlet pipe 1.

[0026] After the setting machine stops working, the air inlet pipe 4 is closed, and the rest of the equipment works normally, so that the filter screen 6 rotates through the combustion chamber 5 to obtain a higher temperature and more complete burning purification. The duration is more than 30 minutes, the fuel pipeline of the burner 8 is closed, and the air supply fan of the burner 8 is used for blowing, which lasts for more than 10 minutes. After the blowing is completed, the air supply fan of the burner 8 is closed, the air outlet pipe 1 is closed, and the motor 9 is turned off.

[0027] Based on the above principles, the technical solution structure of the utility model is as follows:

[0028] The invention comprises an exhaust gas source, an air inlet pipe 4, an air outlet pipe 1, a motor 9, a combustion chamber 5, an inner tube 2, an outer tube 7, and a filter screen 6. The outer tube 7 is sleeved on the outer side of the inner tube 2, and the gap between the outer tube 7 and the inner tube 2 is blocked by a sealing plate, so that a cavity is formed between the inner tube 7 and the outer tube 2. The cavity is in a sealed state. The top of the outer tube 7 is fixedly connected with the air outlet pipe 1. The combustion chamber 5 is located in the cavity between the inner tube 2 and the outer tube 7, which is a fan-shaped area with an angle of 10° to 90°. The combustion chamber 5 consists of two The outer tube 2 is composed of a baffle and a burner 8, the combustion chamber 5 is fixed, one side of the outer tube 7 is fixedly connected with an air inlet pipe 4 connected to the cavity, the outer side of the inner tube 2 is detachably fixed with a filter screen 6 by screws, the air outlet pipe 1 is connected with the filter screen 6, after the exhaust gas enters the cavity between the inner tube 2 and the outer tube 7 through the air inlet pipe 4, it is filtered by the filter screen 6 wrapped on the inner tube 2 to complete the purification of dust in the exhaust gas, and then enters the inner tube 2 and is discharged through the air outlet pipe 1, and the inner tube 2 is connected with a driving structure.

[0029] In the utility model, the driving structure includes a motor 9 fixedly connected to the bottom of the outer cylinder 7, and the motor 9 is fixedly connected to the bottom of the inner cylinder 2. The motor 9 can drive the inner cylinder 2 to rotate, and the inner cylinder 2 can drive the filter 6 to rotate, so that the filter 6 circulates and rotates through the combustion chamber 5, so that the filter 6 is always in a high temperature state to facilitate the adhesion of dust in the exhaust gas.

[0030] In the present invention, the motor 9 drives the inner cylinder 2 to rotate through the reduction gear.

[0031] In the utility model, the sealing plate of the outer cylinder 7 is wrapped with the heat-insulating cotton 3, and an inspection hole is arranged below the outer cylinder 7, and the inspection hole is blocked by the inspection plate.

[0032] In the utility model, the inner cylinder 2 is a hollow structure, and a plurality of through holes are arranged on the outside, and the filtered exhaust gas enters the inner cylinder 2 through the through holes and is discharged from the exhaust pipe 1.

[0033] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. An exhaust gas combustion purification device, comprising an exhaust gas source, an air inlet pipe (4), an air outlet pipe (1), a motor (9), a combustion chamber (5), an inner cylinder (2), an outer cylinder (7), and a filter (6), characterized in that: The outer cylinder (7) is sleeved on the outer side of the inner cylinder (2), and the gap between the outer cylinder (7) and the inner cylinder (2) is blocked by a sealing plate, thereby forming a cavity between the inner cylinder (2) and the outer cylinder (7), and the cavity is in a sealed state. The top of the outer cylinder (7) is fixedly connected with an air outlet pipe (1). The combustion chamber (5) is located in the cavity between the inner cylinder (2) and the outer cylinder (7), and is a fan-shaped area with an angle of 10° to 90°. The combustion chamber (5) is composed of two baffles and a burner (8). The combustion chamber (5) is fixed. One side of the outer cylinder (7) is fixedly connected with an air intake pipe (4) communicating with the cavity; the outer side of the inner cylinder (2) is detachably fixedly wrapped with a filter screen (6) by means of screws; the air outlet pipe (1) is connected with the filter screen (6); after the exhaust gas enters the cavity between the inner cylinder (2) and the outer cylinder (7) through the air intake pipe (4), it is filtered by the filter screen (6) wrapped on the inner cylinder (2) to purify the dust in the exhaust gas, and then enters the inner cylinder (2) and is discharged through the air outlet pipe (1); the inner cylinder (2) is connected with a driving structure.

2. The exhaust gas combustion purification equipment according to claim 1, characterized in that: The driving structure comprises a motor (9) fixedly connected to the bottom of the outer cylinder (7), and the motor (9) is fixedly connected to the bottom of the inner cylinder (2). The motor (9) can drive the inner cylinder (2) to rotate, and the inner cylinder (2) can drive the filter (6) to rotate, so that the filter (6) circulates and rotates through the combustion chamber (5), so that the filter (6) is always in a high temperature state to facilitate the adhesion of dust in the exhaust gas.

3. The exhaust gas combustion purification equipment according to claim 1, characterized in that: The motor (9) drives the inner cylinder (2) to rotate via a reduction gear.

4. The exhaust gas combustion purification equipment according to claim 1, characterized in that: The sealing plate of the outer cylinder (7) is wrapped with thermal insulation cotton (3), and an inspection hole is provided below the outer cylinder (7), and the inspection hole is blocked by an inspection plate.

5. The exhaust gas combustion purification equipment according to claim 1, characterized in that: The inner cylinder (2) is a hollow structure and is provided with a plurality of through holes on the outside. The filtered exhaust gas enters the inner cylinder (2) through the through holes and is discharged from the exhaust pipe (1).

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