Combustion-supporting air exhaust device for double-hearth kiln

Abstract

The utility model discloses a combustion-supporting air exhaust device of a double-hearth kiln, which comprises a combustion-supporting air pipeline, two ends of the combustion-supporting air pipeline are respectively connected with a reversing valve and a release valve, the reversing valve is connected with a waste gas dust removal pipeline, the release valve is connected to a combustion-supporting air release pipeline, the combustion-supporting air release pipeline is connected to the waste gas dust removal pipeline, and the waste gas dust removal pipeline is connected with a combustion-supporting air exhaust pipeline. An airflow buffering assembly is connected into the combustion-supporting air release pipeline and used for changing the airflow direction in the combustion-supporting air release pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of double-chamber kiln technology, and specifically relates to a combustion air exhaust device for a double-chamber kiln. Background Technology

[0002] When the double-chamber kiln reverses direction, the pressure inside the kiln needs to be released. This is currently accomplished by a primary release valve on the 35M platform and a secondary release valve on the 11.4M platform. (See reference...) Figure 1 and Figure 2 During the reversing pressure relief of the double-chamber kiln, the primary release valve 7 discharges the combustion air 100 to the exhaust gas dust removal pipe 4, while the secondary release valve 8 directly discharges the combustion air 100 into the atmosphere. In actual operation, the primary release valve 7 uses a hard seal, which has poor sealing performance and is prone to leakage. This causes large pressure fluctuations inside the kiln during production, affecting product quality and frequently requiring significant manpower and resources for inspection and maintenance. Therefore, improvements are urgently needed to effectively release the combustion air during the reversing pressure relief of the double-chamber kiln. Utility Model Content

[0003] The purpose of this invention is to provide a combustion air exhaust device for a double-chamber kiln, thereby overcoming the technical defects existing in the background art. The specific technical solution is as follows:

[0004] A combustion air exhaust device for a double-chamber kiln includes a combustion air duct. A reversing valve and a release valve are respectively connected to both ends of the combustion air duct. The reversing valve is connected to a dust removal duct, and the release valve is connected to a combustion air release duct. The combustion air release duct is connected to the dust removal duct. An airflow buffer assembly is connected inside the combustion air release duct. The airflow buffer assembly is used to change the airflow direction in the combustion air release duct.

[0005] Preferably, the combustion air release pipe includes a release pipe, a bend pipe, and a buffer pipe connected in sequence. The release pipe is set horizontally and then connected to the release valve, and the buffer pipe is set vertically and then connected to the exhaust gas dust removal pipe.

[0006] Preferably, the airflow buffer assembly is disposed within the buffer pipe.

[0007] Preferably, the length of the buffer pipe is 10 mm or more.

[0008] Preferably, the airflow buffer assembly includes a plurality of buffer plates arranged sequentially along the airflow direction, the plurality of buffer plates being arranged at equal intervals in the combustion air release pipe, and the plurality of buffer plates being staggered from each other.

[0009] Preferably, in the airflow buffer assembly, a plurality of buffer plates are arranged in the combustion air release pipe with a spacing of 1 mm.

[0010] Compared with existing technologies, the present invention provides a dual-chamber kiln combustion air exhaust device that eliminates the existing primary release valve equipment. Then, the combustion air release pipe is connected to the exhaust port of the secondary release valve, and the other end of the combustion air release pipe is connected to the exhaust gas dust removal pipe. At the same time, an airflow buffer component is set in the combustion air release pipe to prevent the impact of airflow and avoid damage to the dust collector bags. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a front view of the existing double-chamber kiln combustion air exhaust device;

[0013] Figure 2 This is a side view of the existing combustion air exhaust system for a double-chamber kiln;

[0014] Figure 3 This is a front view of the double-chamber kiln combustion air exhaust device provided by this utility model;

[0015] Figure 4 This is a front view of the double-chamber kiln combustion air exhaust device provided by this utility model;

[0016] Figure 5 yes Figure 4 An enlarged schematic diagram of the airflow buffer assembly in section A. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "center," "longitudinal," and "lateral" are used interchangeably.

[0019] The terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "top surface," "bottom surface," "inner," "outer," "inner side," and "outer side" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0022] See Figure 3 , Figure 4 and Figure 5 A combustion air exhaust device for a double-chamber kiln includes a combustion air duct 1. A reversing valve 2 and a release valve 3 are respectively connected to both ends of the combustion air duct 1. The reversing valve 2 is connected to a waste gas dust removal duct 4. The release valve 3 is connected to a combustion air release duct 5. The combustion air release duct 5 is connected to the waste gas dust removal duct 4. An airflow buffer assembly 6 is connected inside the combustion air release duct 5. The airflow buffer assembly 6 is used to change the airflow direction in the combustion air release duct 5.

[0023] See Figures 1-4In this utility model, the release valve 3 is equivalent to the existing secondary release valve. In the prior art, a primary release valve and a secondary release valve are used to depressurize the combustion air of a double-chamber kiln. If the primary release valve is eliminated and the secondary release valve is used directly for depressurization, the initial air pressure is relatively high, and opening the secondary release valve will generate a strong impact airflow, which will significantly affect the surrounding production environment and cause safety hazards. Therefore, this device eliminates the primary release valve, reducing the maintenance cost of the equipment and significantly improving product quality assurance. At the same time, to avoid the significant impact on the surrounding production environment caused by using only one release valve, an airflow buffer assembly 6 is installed in the combustion air release pipe 5 connected to the release valve 3. When the combustion air in the double-chamber kiln enters the exhaust gas dust removal pipe 4 through the combustion air pipe 1 and the release valve 3, the airflow buffer assembly 6 can buffer the combustion air, avoiding the impact of the impact airflow generated by the secondary release valve on the surrounding production environment. Simultaneously, the buffering can prevent the airflow from impacting the dust collector bags.

[0024] See Figure 4 and Figure 5 The combustion air release pipe 5 includes a release pipe 51, a bend pipe 52, and a buffer pipe 53 connected in sequence. The release pipe 51 is horizontally arranged and connected to the release valve 3, and the buffer pipe 53 is vertically arranged and connected to the exhaust gas dust removal pipe 4. The airflow buffer assembly 6 is disposed inside the buffer pipe 53.

[0025] The length of the buffer pipe 53 is 10 mm or more.

[0026] See Figure 5 The airflow buffer assembly 6 includes a plurality of buffer plates 61 arranged sequentially along the airflow direction. The plurality of buffer plates 61 are arranged at equal intervals in the combustion air release pipe 5, and the plurality of buffer plates 61 are staggered from each other. The plurality of buffer plates 61 in the airflow buffer assembly 6 are arranged in the combustion air release pipe 5 with a spacing of 1 mm.

[0027] In the specific implementation plan, a Ф915*5mm round pipe is connected to the exhaust port of the release valve 3 as a buffer pipe 53. The other end of the buffer pipe 53 is connected to the exhaust gas dust removal pipe. In order to prevent the dust collector bag from being damaged by the impact of the airflow, the connected pipe should be more than 10m long to ensure the buffer stroke. In addition, a 500*10mm buffer plate is installed every 1m in the pipe to ensure the buffering effect.

[0028] In summary, the dual-chamber kiln combustion air exhaust device provided by this utility model eliminates the existing primary release valve equipment, reducing the maintenance cost of the equipment and significantly improving product quality assurance. Then, the combustion air release pipe is connected to the exhaust port of the secondary release valve, and the other end of the combustion air release pipe is connected to the exhaust gas dust removal pipe. At the same time, an airflow buffer component is set in the combustion air release pipe to prevent airflow impact and avoid damage to the dust collector bags.

[0029] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A combustion air exhaust device for a double-chamber kiln, characterized in that, The system includes a combustion air duct (1), with a reversing valve (2) and a release valve (3) connected to both ends of the combustion air duct (1). The reversing valve (2) is connected to the exhaust gas dust removal duct (4), and the release valve (3) is connected to the combustion air release duct (5). The combustion air release duct (5) is connected to the exhaust gas dust removal duct (4). An airflow buffer assembly (6) is connected inside the combustion air release duct (5), and the airflow buffer assembly (6) is used to change the airflow direction in the combustion air release duct (5).

2. The combustion air exhaust device for a double-chamber kiln according to claim 1, characterized in that, The combustion air release pipe (5) includes a release pipe (51), a bend pipe (52) and a buffer pipe (53) connected in sequence. The release pipe (51) is set horizontally and connected to the release valve (3). The buffer pipe (53) is set vertically and connected to the exhaust gas dust removal pipe (4).

3. The combustion air exhaust device for a double-chamber kiln according to claim 2, characterized in that, The airflow buffer assembly (6) is disposed inside the buffer pipe (53).

4. The combustion air exhaust device for a double-chamber kiln according to claim 2, characterized in that, The length of the buffer pipe (53) is 10 mm or more.

5. The combustion air exhaust device for a double-chamber kiln according to claim 1, characterized in that, The airflow buffer assembly (6) includes a plurality of buffer plates (61) arranged sequentially along the airflow direction. The plurality of buffer plates (61) are arranged at equal intervals in the combustion air release pipe (5), and the plurality of buffer plates (61) are staggered from each other.

6. The combustion air exhaust device for a double-chamber kiln according to claim 4, characterized in that, In the airflow buffer assembly (6), a plurality of buffer plates (61) are arranged in the combustion air release pipe (5) with a spacing of 1 mm.

Images