Kiln with uniform heating function

Abstract

The utility model is suitable for the technical field of ceramic closestool processing kilns, and provides a uniformly heated kiln, which comprises a kiln body, the preheating section, the firing section and the cooling section are arranged on the kiln body, and the firing section is located between the preheating section and the cooling section; the flow guide pipe is fixed at the top of the preheating section through a bracket; the oxygen bottle is arranged on one side of the preheating section; the oxygen inlet pipe is fixedly communicated between the output end of the oxygen bottle and the outer side wall of the flow guide pipe; the oxygen conveying pipe is fixedly communicated with the bottom of the flow guide pipe and is positioned on the inner side of the preheating section; through the oxygen conveying pipes which are arranged in the preheating section in a front-sparse and rear-dense mode, the temperature borne by the ceramic closestool after entering the preheating section is gradually increased, then it is guaranteed that the temperature suddenly rises when the ceramic closestool is heated, the temperature in the preheating section is rapidly increased by introducing oxygen, it is guaranteed that the ceramic closestool is evenly heated, and the firing quality is improved; the yield is improved, and sintering cracks are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of kilns for processing ceramic toilets, and particularly relates to a kiln with uniform heat distribution. Background Art

[0002] The kiln has a preheating section, a firing section, and a cooling section. After the ceramic toilet passes through these three sections in sequence, the firing of the ceramic toilet is completed.

[0003] In the prior art, the preheating section relies on the heat transferred from the firing section to preheat the ceramic toilet to be sintered in the preheating section. The preheating effect is poor, resulting in a sudden temperature rise of the ceramic toilet moving from the preheating section to the transition section, which easily causes cracks, poor sintering quality, and low yield. Since the ceramic toilets are stacked in the kiln, the ceramic toilets located inside the stack are difficult to effectively contact the heat, thus causing the problem of uneven heat distribution.

[0004] Therefore, a kiln with uniform heat distribution is proposed. Content of the Utility Model

[0005] The utility model provides a kiln with uniform heat distribution, aiming to solve the above problems.

[0006] The utility model is realized as follows: a kiln with uniform heat distribution includes: a kiln body; a preheating section, a firing section, and a cooling section provided on the kiln body, and the firing section is located between the preheating section and the cooling section; a diversion pipe fixed to the top of the preheating section through a bracket; and an oxygen cylinder provided at a position on one side of the preheating section; an oxygen inlet pipe fixedly connected between the output end of the oxygen cylinder and the outer side wall of the diversion pipe; an oxygen delivery pipe fixedly connected to the bottom of the diversion pipe, and the oxygen delivery pipe is located inside the preheating section; oxygen ejection holes opened at the bottom of the oxygen delivery pipe; a guide rail provided at a position directly below the inner side of the kiln body; a moving plate provided above the guide rail; a longitudinal heat conduction plate fixed to the center of the top of the moving plate through bolts; heat conduction blocks embedded in the outer side wall of the longitudinal heat conduction plate; a through groove opened at the center of the bottom of the moving plate; and a slider fixed to the bottom of the moving plate near the outer side of the guide rail through bolts.

[0007] Preferably, both the preheating section and the cooling section are communicated with the firing section, and the cross-sections of the internal spaces of the preheating section, the firing section, and the cooling section are all trapezoidal structures.

[0008] Preferably, both the oxygen inlet pipe and the oxygen delivery pipe are communicated with the diversion pipe.

[0009] Preferably, the length of the preheating section accounts for one-fifth of the overall length of the kiln body.

[0010] Preferably, there are thirty oxygen delivery pipes in total, and the thirty oxygen delivery pipes are arranged in a way that they are sparse in the front and dense in the back. The oxygen delivery pipes are made of silicon carbide pipes.

[0011] Preferably, there are several oxygen ejection holes in total, and the several oxygen ejection holes are equally spaced and opened at the bottom of the oxygen delivery pipes.

[0012] Preferably, the longitudinal heat conduction plate and the heat conduction block are made of an aluminum plate and an aluminum block respectively, and the longitudinal heat conduction plate is a hollow cuboid structure with an open bottom.

[0013] Preferably, the guide rail and the slider are matched and fit together, and they are slidably connected between the guide rail and the slider.

[0014] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0015] Through the oxygen delivery pipes arranged in a sparse-in-the-front-and-dense-in-the-back manner inside the preheating section, the temperature received by the ceramic toilet can gradually rise after entering the preheating section, thereby ensuring that the temperature of the ceramic toilet does not suddenly rise when heated. The combustion after introducing oxygen can quickly increase the temperature inside the preheating section, with high heating efficiency. The heat is transferred to the ceramic toilet inside the stack through the longitudinal heat conduction plate and the heat conduction block, thereby ensuring uniform heating of the ceramic toilet, improving the firing quality, increasing the yield rate, and reducing sintering cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a cross-sectional view of the present utility model;

[0018] Figure 3 is a schematic structural diagram of the preheating section of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the moving plate of the present utility model.

[0020] In the figure: 1. Furnace body; 2. Preheating section; 3. Firing section; 4. Cooling section; 5. Diversion pipe; 6. Oxygen cylinder; 7. Oxygen inlet pipe; 8. Oxygen delivery pipe; 9. Oxygen ejection hole; 10. Guide rail; 11. Moving plate; 12. Longitudinal heat conduction plate; 13. Heat conduction block; 14. Through groove; 15. Slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] An embodiment of the utility model provides a kiln furnace with uniform heat reception, as Figures 1-4 shown, including a kiln furnace body 1. The kiln furnace body 1 is composed of a preheating section 2, a firing section 3, and a cooling section 4. The firing section 3 is located between the preheating section 2 and the cooling section 4. The preheating section 2 and the cooling section 4 are both connected to the firing section 3. The cross-sections of the internal spaces of the preheating section 2, the firing section 3, and the cooling section 4 are all trapezoidal structures. A diversion pipe 5 is fixedly connected to the top of the preheating section 2 through a bracket and bolts. An oxygen cylinder 6 is arranged at one side position of the preheating section 2. An oxygen inlet pipe 7 is fixedly connected and communicated between the air outlet end of the oxygen cylinder 6 and the outer side wall of the diversion pipe 5. A oxygen delivery pipe 8 is fixedly connected and communicated near the inner side position of the bottom of the diversion pipe 5. The oxygen inlet pipe 7 and the oxygen delivery pipe 8 are both connected to the diversion pipe 5. Oxygen ejection holes 9 are formed at the bottom of the oxygen delivery pipe 8. A plurality of oxygen ejection holes 9 are provided, and the plurality of oxygen ejection holes 9 are equidistantly arranged at the bottom of the oxygen delivery pipe 8. A guide rail 10 is arranged at the inner side and lower position of the kiln furnace body 1. A moving plate 11 is arranged above the guide rail 10. A longitudinal heat conduction plate 12 is fixedly connected to the central position of the top of the moving plate 11 through bolts. A heat conduction block 13 is embedded on the outer wall of one side of the longitudinal heat conduction plate 12. A through groove 14 is formed at the central position of the bottom of the moving plate 11 near the directly lower position of the longitudinal heat conduction plate 12. A slider 15 is fixedly connected to the outer side position of the bottom of the moving plate 11 near the guide rail 10 through bolts. The guide rail 10 and the slider 15 are matched and fitted, and are slidably connected between the guide rail 10 and the slider 15.

[0024] It should be noted that in the existing kiln preheating section, after the temperature is transferred from the firing section by heat transfer, the ceramic toilets to be sintered in the preheating section are preheated. However, the preheating effect is poor, resulting in a sudden increase in the temperature of the ceramic toilets moving from the preheating section to the transition section, which easily leads to cracks, poor sintering quality, and low yield. Since the ceramic toilets are stacked in the kiln, the ceramic toilets located inside the stack are difficult to effectively contact the heat, resulting in uneven heating. In this embodiment, the oxygen delivery pipes 8 arranged in a front-sparse and rear-dense manner inside the preheating section 2 can enable the temperature of the ceramic toilets to gradually rise after entering the preheating section 2, thereby ensuring that the temperature of the ceramic toilets does not suddenly rise when heated. By introducing oxygen, the temperature inside the preheating section 2 can be quickly increased, with high heating efficiency. The heat is transferred to the ceramic toilets inside the stack through the longitudinal heat conduction plates 12 and the heat conduction blocks 13, thereby ensuring uniform heating of the ceramic toilets, improving the firing quality, increasing the yield, and reducing sintering cracks.

[0025] Specifically, in this embodiment, the solution mainly includes oxygen delivery pipes 8 and longitudinal heat conduction plates 12. When firing ceramic toilets, the ceramic toilets are stacked on the moving plate 11. The longitudinal heat conduction plates 12 are located inside the stacked ceramic toilets. By sliding the slider 15 on the guide rail 10, the moving plate 11 is pulled inside the kiln body 1 by an external traction mechanism (such as a tractor or a winch). The ceramic toilets enter the preheating section 2 as the moving plate 11 is pulled. The oxygen in the oxygen cylinder 6 enters the diversion pipe 5 through the oxygen inlet pipe 7. Under the diversion and splitting of the diversion pipe 5, the oxygen enters the oxygen delivery pipes 8, and finally the oxygen is ejected downward through the oxygen ejection holes 9 opened at the bottom of the oxygen delivery pipes 8, increasing the oxygen concentration inside the preheating section 2, thereby increasing the combustion reaction speed inside the preheating section 2, quickly increasing the temperature inside the preheating section 2, and reducing the temperature difference between the preheating section 2 and the firing section 3. The ceramic toilets are preheated inside the preheating section 2, and the preheated ceramic toilets enter the firing section 3 for high-temperature firing, and finally are cooled and formed through the cooling section 4.

[0026] In a further preferred embodiment of the present invention, as Figure 1 shown, the length of the preheating section 2 accounts for one-fifth of the overall length of the kiln body 1.

[0027] In this embodiment, the preheating section 2 with a length of one-fifth can provide sufficient preheating space for the ceramic toilets and ensure that the firing section 3 and the cooling section 4 can fully fire and cool the ceramic toilets in a long space.

[0028] In a further preferred embodiment of the present invention, as Figure 1 and Figure 3 shown, a total of thirty oxygen delivery pipes 8 are provided, and the thirty oxygen delivery pipes 8 are arranged in a front-sparse and rear-dense manner. The oxygen delivery pipes 8 are made of silicon carbide pipes.

[0029] In this embodiment, by arranging the oxygen delivery pipes 8 in a pattern that is sparse at the front and dense at the rear, the temperature in the preheating section 2 can rise slowly. As a result, the temperature of the ceramic toilet gradually increases as it enters the preheating section 2, thus ensuring that there is no problem of sudden temperature rise when the ceramic toilet is heated.

[0030] In a further preferred embodiment of the present utility model, as Figure 1 and Figure 4 shown, the longitudinal heat conduction plate 12 and the heat conduction block 13 are respectively made of aluminum plates and aluminum blocks, and the longitudinal heat conduction plate 12 has a hollow cuboid structure with an open bottom.

[0031] In this embodiment, the heat conduction performance can be ensured by the longitudinal heat conduction plate 12 and the heat conduction block 13 made of aluminum material, and then the heat is transferred to the ceramic toilet inside the stack, thus ensuring uniform heating of the ceramic toilet. Through the longitudinal heat conduction plate 12, the heat can flow vertically upward, further enabling the heat to be transferred to the ceramic toilet inside the stack.

[0032] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0033] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units can have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0034] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0035] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only partial embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the circumstances, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. A uniformly heated kiln, characterized in that: include: Kiln body (1); A preheating section (2), a firing section (3) and a cooling section (4) are arranged on the kiln body (1), wherein the firing section (3) is located between the preheating section (2) and the cooling section (4); A flow guide pipe (5) fixed to the top of the preheating section (2) via a bracket; and An oxygen cylinder (6) disposed at one side of the preheating section (2); An oxygen inlet pipe (7) fixedly connected between the output end of the oxygen cylinder (6) and the outer wall of the flow guide pipe (5); An oxygen delivery pipe (8) fixedly connected to the bottom of the flow guide pipe (5), wherein the oxygen delivery pipe (8) is located on the inner side of the preheating section (2); An oxygen ejection hole (9) is provided at the bottom of the oxygen delivery pipe (8); A guide rail (10) disposed directly below the inner side of the kiln body (1); A movable plate (11) disposed above the guide rail (10); A longitudinal heat conducting plate (12) fixed at the top center of the movable plate (11) by means of bolts; A heat conducting block (13) embedded in the outer side wall of the longitudinal heat conducting plate (12); A through slot (14) is provided at the central position of the bottom of the movable plate (11); A sliding block (15) is fixed to the bottom of the moving plate (11) at a position close to the outside of the guide rail (10) by means of bolts.

2. A uniformly heated kiln as claimed in claim 1, characterized in that: The preheating section (2) and the cooling section (4) are both connected to the firing section (3), and the cross-sections of the internal spaces of the preheating section (2), the firing section (3) and the cooling section (4) are all trapezoidal structures.

3. A uniformly heated kiln as claimed in claim 1, characterized in that: The oxygen inlet pipe (7) and the oxygen delivery pipe (8) are both connected to the flow guide pipe (5).

4. A uniformly heated kiln as claimed in claim 1, characterized in that: The length of the preheating section (2) accounts for one fifth of the overall length of the kiln body (1).

5. A uniformly heated kiln as claimed in claim 1, characterized in that: A total of thirty oxygen delivery pipes (8) are provided, and the thirty oxygen delivery pipes (8) are arranged in a sparse manner at the front and dense manner at the back. The oxygen delivery pipes (8) are made of silicon carbide pipes.

6. A uniformly heated kiln as claimed in claim 1, characterized in that: A total of a plurality of oxygen ejection holes (9) are provided, and the plurality of oxygen ejection holes (9) are arranged at equal intervals at the bottom of the oxygen delivery pipe (8).

7. A uniformly heated kiln as claimed in claim 1, characterized in that: The longitudinal heat conducting plate (12) and the heat conducting block (13) are made of an aluminum plate and an aluminum block respectively, and the longitudinal heat conducting plate (12) is a hollow rectangular parallelepiped structure with an open bottom.

8. A uniformly heated kiln as claimed in claim 1, characterized in that: The guide rail (10) and the slider (15) are matched and fit together, and the guide rail (10) and the slider (15) are slidably connected.

Images