A water vapor exhaust device for a ternary material kiln

Abstract

The utility model discloses a water vapor exhaust device for a ternary material kiln, belonging to the technical field of ternary material equipment processing, comprising a kiln body and an exhaust fan duct for exhausting water vapor from the kiln body, the kiln body being provided with a plurality of temperature control zones, the kiln body being provided with an exhaust port at the top corresponding to each temperature control zone, the exhaust port being connected to the exhaust fan duct through a water vapor duct, the kiln body being provided with a plurality of reflux channels at equal intervals, and the air inlet of the reflux channel being penetrated through a tee pipe and arranged in the middle and lower part of the kiln body, the air outlet of the reflux channel being penetrated through a tee pipe and arranged in the middle and upper part of the kiln body, and a through hole being provided on the top cover plate of the kiln body, the through hole being connected to the exhaust fan duct through a connecting pipe; the problem that part of the water vapor in the existing kiln in the production process of the ternary material is easily converted into liquid condensed water and dripped onto the material, resulting in incomplete reaction of the material after absorbing water, and secondly being easily accumulated in the insulation layer and causing corrosion and rust of the equipment is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ternary material equipment processing, in particular to a ternary material kiln water vapor exhaust device. Background Art

[0002] At present, the production process of ternary materials adopts the sintering solid phase method. When lithium hydroxide and NCM matrix are sintered under high temperature oxygen conditions, the free water and structural water in the material are separated, which will cause a large amount of water vapor to be discharged. The current kiln has an exhaust port on the top of the furnace, and the exhaust ports of each temperature zone are connected in series. A fan is used to extract the water vapor. However, the sealing of the refractory bricks of the kiln becomes poor as the service time increases. A lot of water vapor will pass through the refractory bricks and be absorbed by the insulation cotton between the shell and the refractory bricks. The temperature difference between the steel plate above the insulation cotton and the interior is large, causing water vapor condensation. The water vapor becomes liquid condensed water. The condensed water formed first accumulates in the insulation layer, which can easily cause corrosion and rust of the equipment. Secondly, the condensed water generated is easy to drip onto the internal material, causing incomplete reaction of the material after absorbing water, affecting the quality of the product.

[0003] Chinese patent CN210773414U discloses a kiln equipment water vapor collection and emission device, specifically in the kiln field, including an evaporator, an evaporator bottom, a kiln, a kiln bottom, a support frame, and a conveyor belt. A water vapor sensor is fixedly installed on one side of the top of the inner cavity of the evaporator, a sensing line is fixedly connected to one side of the water vapor sensor, and a conductor is fixedly connected to the other end of the sensing line. A collection pipe is fixedly installed on the other side of the conductor, and a filter box is fixedly installed in the middle of the collection pipe. Chinese patent CN210952383U discloses a kiln exhaust gas treatment device, including a main box body, a baffle, a pair of support plates with the same structure, and a smoke inlet pipe. The baffle is installed on the inner wall of the main box body and forms an independent closed space with the left and right sides of the main box body. A pair of support plates are vertically installed on the upper side of the main box body, and the smoke inlet pipe is installed on the main box body. A sulfur treatment structure is connected to the smoke inlet pipe, and an acid treatment structure is connected to the main box body. However, in the existing kilns, some water vapor is easily converted into liquid condensed water during the production process of ternary materials, which is easy to drip onto the materials, resulting in incomplete reaction of the materials after absorbing water. Secondly, the liquid condensed water will accumulate in the insulation layer, and if it is not effectively treated for a long time, it will cause equipment corrosion and rust. Therefore, it is necessary for this application to provide a water vapor discharge device with good water vapor discharge effect in the production process of ternary materials. Utility Model Content

[0004] The purpose of the utility model is to overcome the problem that part of the water vapor in the existing kiln during the production process of ternary materials is easily converted into liquid condensed water and dripped onto the material, causing incomplete reaction of the material after absorbing water, and secondly, the liquid condensed water will accumulate in the insulation layer, which will cause corrosion and rust of the equipment if not treated for a long time. The utility model provides a ternary material kiln water vapor discharge device with good water vapor discharge effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a water vapor discharge device for a ternary material kiln, comprising a kiln body and an exhaust fan duct for discharging water vapor from the kiln body, the kiln body comprising an outer shell layer, a refractory layer and a heat insulation layer, the heat insulation layer being arranged between the outer shell layer and the refractory layer, the kiln body being provided with a plurality of temperature control zones, and the kiln body being provided with an exhaust port at the top thereof corresponding to each temperature control zone, the exhaust port being connected to the exhaust fan duct through a water vapor duct, the kiln body being provided with a plurality of reflux channels at equal intervals, the reflux channels being arranged between the refractory layer and the heat insulation layer, and the air inlet of the reflux channel penetrating the refractory layer through a three-way pipe being arranged in the middle and lower part of the kiln body, the air outlet of the reflux channel penetrating the refractory layer through a three-way pipe being arranged in the middle and upper part of the kiln body, and a through hole being provided on the top cover plate of the kiln body, the through hole being connected to the exhaust fan duct through a connecting pipe.

[0006] Furthermore, the outlet pipe opening of the three-way pipe at one end of the air inlet of the reflux channel is arranged downward, and the outlet pipe opening of the three-way pipe at one end of the air outlet of the reflux channel is arranged downward.

[0007] Furthermore, the diameter of the outlet pipe opening of the tee pipe is smaller than the diameter of the connecting pipe opening of the tee pipe.

[0008] Furthermore, the reflux channel is arranged corresponding to each temperature control zone, and the air inlet and the air outlet of the reflux channel are provided with air valves to make the gas in the reflux channel move in one direction.

[0009] Furthermore, the through hole is opened at the top between the heat insulation layer and the refractory layer corresponding to the kiln body.

[0010] Furthermore, one end of the exhaust fan duct is closed, and the other end of the exhaust fan duct is connected to an exhaust fan.

[0011] The utility model provides a ternary material kiln water vapor exhaust device, which has the following beneficial effects:

[0012] The utility model effectively discharges the water vapor generated in the process of processing ternary materials in the kiln body through the reasonable arrangement of the water vapor pipeline in combination with the reflux channel and the exhaust fan pipeline, avoids part of the water vapor from becoming liquid condensed water in the insulation layer, and reduces the residence of water vapor in the kiln body, thereby improving the discharge effect of the water vapor discharge device of the present application; the utility model is easy to operate and has strong practicality, and effectively solves the problem that part of the water vapor in the production process of ternary materials in the existing kiln is easily converted into liquid condensed water and drips onto the material, resulting in incomplete reaction of the material after absorbing water, and secondly, the liquid condensed water will accumulate in the insulation layer, which will cause corrosion and rust of the equipment if not handled for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural schematic diagram of the water vapor exhaust device of the ternary material kiln of the utility model.

[0014] Figure 2 It is a schematic cross-sectional view of the kiln body of the utility model of the water vapor exhaust device of the ternary material kiln.

[0015] Figure 3 This is a schematic diagram of the structure of the reflux channel of the water vapor exhaust device of the ternary material kiln of the utility model

[0016] In the figure, 1. kiln body; 2. exhaust fan duct; 3. outer shell layer; 4. refractory layer; 5. insulation layer; 6. water vapor duct; 7. reflux channel; 8. connecting pipe. DETAILED DESCRIPTION

[0017] The technical solution of the utility model is described clearly and completely below in conjunction with the specific embodiments of the utility model. The described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0018] Example 1

[0019] like Figure 1-3As shown, the utility model provides a ternary material kiln water vapor discharge device, including a kiln body 1 and an exhaust fan duct 2 for discharging water vapor from the kiln body 1. The kiln body 1 of the present application has the use functions of the existing ternary material kiln, which are not shown in the figure (such as a feed port, a discharge port, etc.). The kiln body 1 includes an outer shell layer 3, a refractory layer 4 and a heat insulation layer 5. The heat insulation layer 5 is arranged between the outer shell layer 3 and the refractory layer 4, and a heat preservation layer is formed between the refractory layer 4 and the heat insulation layer 5. The kiln body 1 is provided with a plurality of temperature control zones, and the kiln body 1 is provided with an exhaust port at the top thereof corresponding to each temperature control zone. The exhaust port is connected to the exhaust fan duct 2 through a water vapor duct 6, and the water vapor formed in the inner cavity of the kiln body 1 is discharged into the exhaust fan duct 2 through the water vapor duct 6, so as to reduce the residence time of the water vapor in the kiln body 1. The kiln body 1 is provided with a plurality of reflux channels 7 at equal intervals. The reflux channel 7 is arranged between the refractory layer 4 and the thermal insulation layer 5, and the air inlet of the reflux channel 7 passes through the refractory layer 4 through a three-way pipe and is arranged in the middle and lower part of the kiln body 1, and the air outlet of the reflux channel 7 passes through the refractory layer 4 through a three-way pipe and is arranged in the middle and upper part of the kiln body 1, and a through hole is opened on the top cover plate of the kiln body 1, and the through hole corresponds to the top of the kiln body 1 opened between the thermal insulation layer 5 and the refractory layer 4; the through hole is connected to the exhaust fan pipe 2 through a connecting pipe 8, and the reflux channel 7 is arranged corresponding to each temperature control zone, and the air inlet and air outlet of the reflux channel 7 are provided with air valves, so that the gas in the reflux channel 7 moves in one direction, on the one hand, the utilization rate of the heat in the kiln body 1 is improved, and on the other hand, the temperature between the refractory layer 4 and the thermal insulation layer 5 is avoided to be too low, and water vapor enters between the refractory layer 4 and the thermal insulation layer 5 to form liquid condensed water, thereby improving its practical performance.

[0020] Example 2

[0021] Based on the above embodiment, in order to prevent some water vapor from forming liquid condensed water in the insulation layer, the present embodiment Figure 3 As shown, the three-way pipe outlet at one end of the air inlet of the reflux channel 7 in this embodiment is arranged downward, and the three-way pipe outlet at one end of the air outlet of the reflux channel 7 is arranged downward, and the diameter of the three-way pipe outlet is smaller than the diameter of the three-way pipe connecting pipe. Through the setting of the reflux channel 7, the temperature of each corresponding temperature control zone is transferred between the thermal insulation layer 5 and the refractory layer 4 through the three-way pipe, thereby increasing the temperature between the thermal insulation layer 5 and the refractory layer 4, preventing water vapor from forming liquid condensed water in the thermal insulation layer, causing corrosion and rust to the equipment.

[0022] Example 3

[0023] On the basis of the above embodiments, in order to improve the water vapor emission effect, the present embodiment Figure 1As shown, one end of the exhaust fan duct 2 described in the present application is closed, and the other end of the exhaust fan duct 2 is connected to the exhaust fan. The exhaust fan duct 2 of this embodiment is connected to the kiln body 1 through the water vapor duct 6 and the connecting duct 8. The exhaust fan acts on the exhaust fan duct 2, so that the water vapor in the kiln body 1 is quickly extracted and discharged in one direction, avoiding part of the water vapor from forming liquid condensed water in the kiln body 1, so as to reduce the residence of water vapor in the kiln body 1, thereby improving the emission effect of the water vapor emission device of the present application.

[0024] When the utility model is in use, the exhaust fan is started by a controller so that the water vapor generated by the ternary material in the kiln body 1 during the production process can be quickly and timely extracted and discharged from the kiln body 1. At the same time, the reflux channel 7 is set to prevent part of the water vapor generated by the ternary material in the kiln body 1 from forming liquid condensed water in the insulation layer, which may easily cause corrosion and rust to the equipment during long-term use. This effectively solves the problem that part of the water vapor in the existing kiln during the production of ternary materials is easily converted into liquid condensed water and drips onto the material, causing incomplete reaction of the material after absorbing water, and secondly, the liquid condensed water will accumulate in the insulation layer, which may cause corrosion and rust to the equipment if not handled for a long time.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water vapor exhaust device for a ternary material kiln, comprising a kiln body (1) and an exhaust fan duct (2) for exhausting water vapor from the kiln body (1), characterized in that: The kiln body (1) comprises an outer shell layer (3), a refractory layer (4) and a heat-insulating layer (5), wherein the heat-insulating layer (5) is arranged between the outer shell layer (3) and the refractory layer (4), the kiln body (1) is provided with a plurality of temperature control zones, and an exhaust port is provided at the top of the kiln body (1) corresponding to each temperature control zone, wherein the exhaust port is connected to the exhaust fan pipe (2) via a water vapor pipe (6), the kiln body (1) is provided with a plurality of reflux channels (7) at equal intervals, wherein the reflux channels (7) are arranged between the refractory layer (4) and the heat-insulating layer (5), and the air inlet of the reflux channel (7) penetrates the refractory layer (4) via a three-way pipe and is arranged at the middle and lower part of the kiln body (1), and the air outlet of the reflux channel (7) penetrates the refractory layer (4) via a three-way pipe and is arranged at the middle and upper part of the kiln body (1), and a through hole is provided on the top cover plate of the kiln body (1), wherein the through hole is connected to the exhaust fan pipe (2) via a connecting pipe (8).

2. The ternary material kiln water vapor exhaust device according to claim 1 is characterized in that: The outlet pipe opening of the three-way pipe at one end of the air inlet of the reflux channel (7) is arranged to face downward, and the outlet pipe opening of the three-way pipe at one end of the air outlet of the reflux channel (7) is arranged to face downward.

3. The water vapor exhaust device for a ternary material kiln according to claim 2 is characterized in that: The pipe diameter of the outlet pipe opening of the tee pipe is smaller than the pipe diameter of the connecting pipe opening of the tee pipe.

4. The water vapor exhaust device for a ternary material kiln according to claim 1 is characterized in that: The reflux channel (7) is arranged corresponding to each temperature control zone, and the air inlet and the air outlet of the reflux channel (7) are provided with air valves to enable the gas in the reflux channel (7) to move in one direction.

5. The ternary material kiln water vapor exhaust device according to claim 1 is characterized in that: The through hole is opened at the top of the kiln body (1) between the heat insulation layer (5) and the refractory layer (4).

6. The water vapor exhaust device for a ternary material kiln according to claim 1 is characterized in that: One end of the exhaust fan duct (2) is closed, and the other end of the exhaust fan duct (2) is connected to an exhaust fan.

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