Air supply structure for changing the air flow environment in a multi-drum roasting furnace

Abstract

The present invention provides an air supply structure for changing the airflow environment within a multi-cylinder roasting furnace. The multi-cylinder roasting furnace is an integrated structure comprising a high-temperature section and a cooling section connected by end plates. The air supply structure is fixed to the cooling section and is characterized in that the air supply structure comprises: a central air inlet pipe fixed to the end plates, one side of the central air inlet pipe being blocked by a central pipe plugging plate, and a multi-head spiral ribbon disposed within the central air inlet pipe; and air inlet branch pipes fixed to the central air inlet pipe and uniformly distributed circumferentially. This air supply structure ensures uniform and controllable airflow within the multi-cylinder roasting furnace, ensuring long-term stable operation. It can precisely control material product performance parameters by adjusting the atmosphere within the furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and in particular to an air supply structure for changing the air flow environment in a multi-drum roasting furnace. Background Art

[0002] Iron phosphate (FePO4) is the most important precursor of lithium iron phosphate (LFP) material. It has the characteristics of high safety and low cost, and has a high cost-effectiveness in terms of long-range electric vehicle driving. It has huge market demand. However, the roasting furnace is the most core drying equipment for iron phosphate. It has few means to control the airflow environment in the furnace, which makes it difficult to control the material temperature in the roasting furnace. Summary of the Invention

[0003] In response to the above-mentioned deficiencies in the prior art, the present invention provides an air supply structure for changing the airflow environment in a multi-drum roasting furnace. This structure can control the airflow environment in the roasting furnace and accurately control the performance parameters of material products by adjusting the atmosphere in the furnace.

[0004] In order to achieve the above-mentioned object, the present invention provides an air supply structure for changing the airflow environment in a multi-cylinder roasting furnace. The multi-cylinder roasting furnace is an integrated structure, comprising a high-temperature section and a cooling section connected together by end plates. The air supply structure is fixed to the cooling section and comprises:

[0005] An air inlet central tube, the air inlet central tube is fixed to the end plate, one side of the air inlet central tube is blocked by a central tube plugging plate, and a multi-head spiral belt is further provided inside the air inlet central tube;

[0006] The air inlet branch pipes are fixed on the air inlet central pipe and are evenly distributed in the circumferential direction.

[0007] In some embodiments, the multi-start spiral ribbon is a reverse spiral, so that when part of the material enters the air inlet central tube, it can be rotated back to the high-temperature section of the multi-drum roasting furnace through the multi-start spiral ribbon.

[0008] In some embodiments, the high-temperature section of the multi-drum roasting furnace is in a single-drum form, and the cooling section is in a multi-drum form.

[0009] In some embodiments, the number of the air inlet branches varies with the number of cylinders in the cooling section and the requirements of the environment in the roasting furnace.

[0010] In some embodiments, the tail end of the air inlet branch pipe can be bent.

[0011] In some embodiments, the air supply structure is reinforced on the cylinder of the cooling section by a fixed tie rod.

[0012] In some embodiments, the air supply structure further includes a branch pipe tie rod for fixing the plurality of air inlet branch pipes.

[0013] In some embodiments, a filter element is further provided on the air inlet branch pipe.

[0014] In some embodiments, the filter element can be replaced according to the amount of air supply and changes in the use environment.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The present invention provides an air supply structure for changing the airflow environment in a multi-drum roasting furnace. Specifically, it is an air supply structure that can effectively change the gas flow field in the furnace, ensuring that the airflow in the multi-drum roasting furnace is uniform and controllable, and the structure operates stably for a long period of time. The air supply structure for changing the airflow environment in a multi-drum roasting furnace provided by the present invention is suitable for drying equipment for fine iron phosphate powder particles of new energy materials, and can achieve precise control of material product performance parameters by adjusting the atmosphere in the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of an air supply structure for changing the airflow environment in a multi-drum roasting furnace according to an embodiment of the present invention;

[0019] Figure 2 This is a left side view of a multi-drum roasting furnace shown in an embodiment of the present invention;

[0020] in:

[0021] 1-end plate;

[0022] 2-High temperature section;

[0023] 3-Cooling section;

[0024] 4-Fixed stretching;

[0025] 10-air supply structure;

[0026] 11- air inlet center pipe;

[0027] 12-Center pipe plugging plate;

[0028] 13-Multi-head screw ribbon;

[0029] 14-air inlet branch pipe;

[0030] 15-branch reinforcement;

[0031] 16-Filter element. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the present invention, but it is not intended to limit the scope of protection of the appended claims of the present invention.

[0033] Certain words are used in the specification and subsequent claims to refer to specific components or parts. A person of ordinary skill in the art should understand that technical users or manufacturers may refer to the same component or part with different nouns or terms. This specification and the subsequent claims do not use differences in names as a way to distinguish components or parts, but rather use differences in the functions of components or parts as the criteria for distinction. The words "including" and "comprising" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connect" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0034] It should be noted that, in the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and "about", or "approximately", "substantially", "left and right" and the like to indicate directions or positional relationships or parameters are all based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description content, and do not indicate or imply that the device or element referred to must have a specific direction, specific size or be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] See Figure 1-2 , one embodiment of the present invention provides an air supply structure for changing the air flow environment in a multi-cylinder roasting furnace, the multi-cylinder roasting furnace is an integrated structure, the multi-cylinder roasting furnace includes a high-temperature section 2 and a cooling section 3 connected together by an end plate 1, the air supply structure 10 is fixed on the cooling section 3, the air supply structure 10 includes: an air inlet central pipe 11, the air inlet central pipe 11 is fixed on the end plate 1, and can be fixed by, for example, welding; one side of the air inlet central pipe 11 is blocked by a central pipe blocking plate 12, and a multi-head spiral ribbon 13 is also provided inside the air inlet central pipe 11; the multi-head spiral ribbon 13 is welded inside the air inlet central pipe 11; an air inlet branch pipe 14, the air inlet branch pipe 14 is fixed on the air inlet central pipe 11 and is evenly distributed in the circumferential direction, and can be fixed by, for example, welding.

[0036] The multi-start spiral ribbon 13 is a reverse spiral, and is used for rotating part of the material into the high-temperature section 2 of the multi-drum roasting furnace through the multi-start spiral ribbon 13 when the material enters the central air inlet pipe 11 .

[0037] The high temperature section 2 of the multi-drum roasting furnace is in a single-drum form, and the cooling section 3 is in a multi-drum form.

[0038] The number of the air inlet branch pipes 14 varies with the number of cylinders in the cooling section 3 and the requirements of the environment in the roasting furnace; the tail end of the air inlet branch pipe 14 can be bent.

[0039] In this embodiment, the air supply structure 10 is reinforced on the cylinder of the cooling section 3 through a fixed tie rod 4, and can be reinforced by, for example, welding.

[0040] In this embodiment, the air supply structure 10 further includes a branch pipe tie rod 15 for fixing the plurality of air inlet branch pipes 14 .

[0041] In this embodiment, the air inlet branch pipe 14 is further provided with a filter element 16; the filter element 16 can be replaced according to the amount of air supply and changes in the use environment; or when the air supply structure is not used, a plug can be used for blocking.

[0042] The air supply structure for changing the airflow environment in a multi-drum roasting furnace provided in an embodiment of the present invention can achieve precise control of material product performance parameters by adjusting the atmosphere in the furnace.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An air supply structure for changing the airflow environment in a multi-tube roasting furnace, wherein the multi-tube roasting furnace is an integrated structure comprising a high-temperature section and a cooling section connected by end plates, and the air supply structure is fixed to the cooling section, characterized in that: The air supply structure includes: An air inlet central tube, the air inlet central tube is fixed to the end plate, one side of the air inlet central tube is blocked by a central tube plugging plate, and a multi-head spiral belt is further provided inside the air inlet central tube; Air inlet branch pipes, the air inlet branch pipes are fixed on the air inlet central pipe and evenly distributed in the circumferential direction; The multi-start spiral ribbon is a reverse spiral, which is used to rotate back to the high-temperature section of the multi-drum roasting furnace through the multi-start spiral ribbon when part of the material enters the air inlet central tube; The high temperature section of the multi-drum roasting furnace is a single-drum type, and the cooling section is a multi-drum type; The tail end of the air inlet branch pipe can be bent; The air supply structure is reinforced on the cylinder of the cooling section through a fixed tie rod; The air supply structure further includes a branch pipe tie rod for fixing the plurality of air inlet branch pipes; The air inlet branch pipe is also provided with a filter element.

2. The air supply structure for changing the airflow environment in a multi-drum roasting furnace according to claim 1 is characterized in that: The number of the air inlet branches varies with the number of cylinders in the cooling section and the requirements of the environment in the roasting furnace.

3. The air supply structure for changing the airflow environment in a multi-drum roasting furnace according to claim 1 is characterized in that: The filter element can be replaced according to the size of the air supply volume and changes in the use environment.

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