Firewood kiln

Abstract

The utility model discloses a firewood kiln which comprises a kiln body with a kiln chamber, a kiln door arranged at the front end of the kiln body and used for opening and closing the kiln chamber, and an exhaust pipe. Combustion furnaces with combustion chambers are arranged on the two sides of the kiln body; the combustion furnace is lower than the kiln body; a fire barrier is arranged at the lower part of the adjacent part of the combustion chamber and the kiln chamber, and the upper part of the combustion chamber is communicated with the kiln chamber; the combustion chamber is provided with a feeding port, and the combustion furnace is provided with a furnace door used for opening and closing the feeding port. A fire bar is arranged at the bottom of the combustion chamber, an ash collecting chamber is arranged on the combustion furnace and located below the combustion chamber, and an ash outlet is formed in the lower portion of the ash collecting chamber. A gas collecting body with a gas collecting chamber is arranged at the rear end of the kiln body, and an exhaust port used for being communicated with the gas collecting chamber is formed in the lower portion of the rear end of the kiln chamber. And the exhaust pipe is arranged at the top of the gas collecting body and is communicated with the gas collecting chamber. The utility model has the advantages that the heat can be more uniformly distributed in the whole kiln chamber, so that the common problem of uneven temperature in the traditional single-combustion-chamber layout is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of firing kilns, in particular to a wood-fired kiln. Background Art

[0002] Wood kiln is an ancient ceramic firing technology that uses firewood as the main fuel source. This type of kiln has a long history in China, especially in ceramic centers such as Jingdezhen, where wood kilns are used to fire high-quality porcelain, such as blue and white porcelain and other fine ceramic products. The reason why wood kilns have not been eliminated is mainly because wood ash melts at high temperatures and adheres to the surface of the ceramic, which can produce unique glaze colors and textures that are difficult to replicate with electric kilns or gas kilns. There are many existing wood kiln combustion methods, among which direct combustion is the most traditional layout method, with the combustion chamber directly connected to the kiln chamber. The firewood burns in the combustion chamber, and the flame and heat directly enter the kiln chamber and come into contact with the ceramic. This method can produce a strong flame flow. There is also a layout of a main combustion chamber and an auxiliary combustion chamber, as well as a layout of a lower combustion chamber and an upper combustion chamber, etc. The heating uniformity of this layout needs to be further improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a wood-fired kiln.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] A wood kiln comprises a kiln body with a kiln chamber, a kiln door arranged at the front end of the kiln body and used for opening and closing the kiln chamber, and an exhaust pipe; combustion furnaces with combustion chambers are arranged on both sides of the kiln body; the height of the combustion furnace is lower than the kiln body; a fire retaining wall is arranged at the lower part of the combustion chamber adjacent to the kiln chamber, and the upper part of the combustion chamber is connected with the kiln chamber; the combustion chamber has a feeding port, and the combustion furnace is provided with a furnace door for opening and closing the feeding port; grate bars are arranged at the bottom of the combustion chamber, an ash collecting chamber is arranged on the combustion furnace and below the combustion chamber, and an ash outlet is arranged at the lower part of the ash collecting chamber; a gas collecting chamber with a gas collecting chamber is arranged at the rear end of the kiln body, and an exhaust port for communicating with the gas collecting chamber is arranged at the lower part of the rear end of the kiln chamber; the exhaust pipe is arranged at the top of the gas collecting chamber and is connected with the gas collecting chamber.

[0006] Preferably, the furnace door is arranged on the combustion furnace through a sliding structure, and the sliding structure includes a lower guide rail fixedly connected to the combustion furnace and located below the feeding port, and an upper guide rail fixedly connected to the combustion furnace and located above the feeding port; the furnace door is connected to the lower guide rail and the upper guide rail through sliding guide cooperation.

[0007] Preferably, one side of the furnace door is connected to the kiln body through a hinge structure, and two connectors with U-shaped openings are arranged at intervals on the other side. The kiln body is hingedly connected to a screw rod that cooperates with the corresponding connector rod, and a handle nut is screwed on the screw rod.

[0008] Preferably, an observation port is provided on the kiln door, and a detachable plug is provided on the observation port.

[0009] Preferably, a handle is provided on the furnace door.

[0010] Preferably, the exhaust port is in the shape of a horizontal strip, and its width is close to the width of the kiln chamber.

[0011] The above technical solution has the following advantages:

[0012] The utility model adopts a bilaterally symmetrical double combustion chamber layout, which not only optimizes the combustion efficiency, but also greatly improves the balance of heat energy utilization. A fire baffle is set in each combustion chamber. This design cleverly guides the direction of the flame, so that the heat can be more evenly distributed in the entire kiln chamber, thereby avoiding the temperature unevenness problem common in the traditional single combustion chamber layout. Through the guidance of the fire baffle, the hot air flow is effectively controlled to flow in from the middle of both sides of the kiln chamber. This unique air intake method ensures that the hot air flow can form a stable thermal circulation environment around the pottery. After the hot air flow fully contacts the pottery and heats it evenly, it will naturally flow to the exhaust port at the bottom of the rear of the kiln chamber, and then enter the gas collecting chamber for discharge. During the whole process, the flow path of the hot air flow is precisely controlled, ensuring the effective transfer and utilization of heat, and greatly improving the energy efficiency during the firing process. In addition, due to the uniform distribution of the hot air flow, the pottery can reach a consistent temperature during the firing process, which is crucial to improving the quality of pottery. Uniform heating not only helps to stabilize the internal structure of the pottery, but also effectively reduces cracks and deformation during the firing process, thereby improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the utility model;

[0014] Figure 2 for Figure 1 A top view of

[0015] Figure 3 for Figure 1 Left view of

[0016] Figure 4 for Figure 1 Right view of;

[0017] Figure 5 for Figure 1 Stereoscopic image of

[0018] Figure 6 for Figure 5 Schematic diagram of the middle kiln door and some components opened;

[0019] Figure 7 for Figure 1 Sectional view of AA in the middle;

[0020] Figure 8 for Figure 2 Cross-sectional view of the middle BB;

[0021] Fig. 9 for Figure 6 Magnified view of part C.

[0022] In the figure:

[0023] 1-kiln chamber, 2-kiln body, 3-kiln door, 4-exhaust pipe, 5-combustion chamber, 6-combustion furnace, 7-fire retaining wall, 8-feeding port, 9-furnace door, 10-grate bar, 11-ash collecting chamber, 12-ash outlet, 13-gas collecting chamber, 14-gas collecting gas, 15-exhaust port, 16-lower guide rail, 17-upper guide rail, 18-hinge structure, 19-U-shaped mouth, 20-connecting piece, 21-screw, 22-handle nut, 23-observation port, 24-plug body, 25-handle. DETAILED DESCRIPTION

[0024] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] As shown in the accompanying drawings, a wood kiln comprises a kiln body 2 having a kiln chamber 1, a kiln door 3 arranged at the front end of the kiln body 2 and used for opening and closing the kiln chamber 1, and an exhaust pipe 4; a combustion furnace 6 having a combustion chamber 5 is arranged on both sides of the kiln body 2; the height of the combustion furnace 6 is lower than the kiln body 2; a fire retaining wall 7 is arranged at the lower part of the combustion chamber 5 adjacent to the kiln chamber 1, and the upper part of the combustion chamber 5 is communicated with the kiln chamber 1; the combustion chamber 5 has a feeding port 8, and a furnace door 9 for opening and closing the feeding port 8 is arranged on the combustion furnace 6; a grate bar 10 is arranged at the bottom of the combustion chamber 5, an ash collecting chamber 11 is arranged on the combustion furnace 6 and located below the combustion chamber 5, and an ash outlet 12 is arranged at the lower part of the ash collecting chamber 11; a gas collecting chamber 14 having a gas collecting chamber 13 is arranged at the rear end of the kiln body 2, and an exhaust port 15 for communicating with the gas collecting chamber 13 is arranged at the lower part of the rear end of the kiln chamber 1; the exhaust pipe 4 is arranged at the top of the gas collecting chamber 14 and is communicated with the gas collecting chamber 13.

[0026] As a preferred technical solution of this embodiment, the furnace door 9 is arranged on the combustion furnace 6 through a sliding structure, and the sliding structure includes a lower guide rail 16 fixedly connected to the combustion furnace 6 and located below the charging port 8, and an upper guide rail 17 fixedly connected to the combustion furnace 6 and located above the charging port 8; the furnace door 9 is connected to the lower guide rail 16 and the upper guide rail 17 through sliding guide cooperation. The charging port 8 can be opened and closed by moving the furnace door 9 along the lower guide rail 16 and the upper guide rail 17, and the operation is convenient and quick.

[0027] As a preferred technical solution of this embodiment, one side of the furnace door 9 is connected to the kiln body 2 through a hinge structure 18, and two connecting pieces 20 with U-shaped openings 19 are arranged at intervals on the other side. The kiln body 2 is hingedly connected to a screw 21 that matches the corresponding connecting piece 20, and a handle nut 22 is screwed on the screw 21. The furnace door 9 of this opening and closing method has good airtightness.

[0028] As a more preferred technical solution of this embodiment, the exhaust port 15 is in the shape of a horizontal strip, and its width is close to the width of the kiln chamber 1. By increasing the width of the exhaust port 15, the uniformity of the airflow discharge from the kiln chamber 1 can be ensured.

[0029] As a further improved technical solution of the present embodiment, an observation port 23 is provided on the kiln door 3 , and a detachable plug 24 is provided on the observation port 23 .

[0030] As a further improved technical solution of this embodiment, a handle 25 is provided on the furnace door 9 .

[0031] The utility model adopts a bilaterally symmetrical double combustion chamber 5 layout, and a fire baffle 7 is set in each combustion chamber 5. The fire baffle 7 can guide the direction of the flame. Through the guidance of the fire baffle 7, the hot air flow is effectively controlled so that it flows in from the middle of both sides of the kiln chamber 1. This unique air intake method ensures that the hot air flow can form a stable thermal circulation environment around the pottery, that is, the heat can be more evenly distributed in the entire kiln chamber 1, thereby avoiding the temperature unevenness problem common in the traditional single combustion chamber layout. Due to the uniform distribution of the hot air flow, the pottery can reach a consistent temperature during the firing process, which is crucial to improving the quality of the pottery. Uniform heating not only helps to stabilize the internal structure of the pottery, but also effectively reduces cracks and deformation during the firing process, thereby improving the yield rate.

[0032] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A wood kiln, comprising a kiln body (2) having a kiln chamber (1), a kiln door (3) arranged at the front end of the kiln body (2) and used to open and close the kiln chamber (1), and an exhaust pipe (4); characterized in that: A combustion furnace (6) having a combustion chamber (5) is arranged on both sides of the kiln body (2); the height of the combustion furnace (6) is lower than that of the kiln body (2); a fire retaining wall (7) is arranged at the lower part of the combustion chamber (5) adjacent to the kiln chamber (1), and the upper part of the combustion chamber (5) is connected to the kiln chamber (1); the combustion chamber (5) has a feeding port (8), and the combustion furnace (6) is provided with a furnace door (9) for opening and closing the feeding port (8); the bottom of the combustion chamber (5) is provided with a furnace The kiln (10) is provided with an ash collecting chamber (11) on the combustion furnace (6) and below the combustion chamber (5), and an ash outlet (12) is provided at the lower part of the ash collecting chamber (11); a gas collecting chamber (14) having a gas collecting chamber (13) is provided at the rear end of the kiln body (2), and an exhaust port (15) for communicating with the gas collecting chamber (13) is provided at the lower part of the rear end of the kiln chamber (1); and the exhaust pipe (4) is provided at the top of the gas collecting chamber (14) and communicates with the gas collecting chamber (13).

2. The wood kiln according to claim 1, characterized in that: The furnace door (9) is arranged on the combustion furnace (6) through a sliding structure, and the sliding structure includes a lower guide rail (16) fixedly connected to the combustion furnace (6) and located below the charging port (8), and an upper guide rail (17) fixedly connected to the combustion furnace (6) and located above the charging port (8); the furnace door (9) is connected to the lower guide rail (16) and the upper guide rail (17) through sliding guide cooperation.

3. The wood kiln according to claim 1, characterized in that: One side of the furnace door (9) is connected to the kiln body (2) via a hinge structure (18), and two connecting pieces (20) with U-shaped openings (19) are arranged at intervals on the other side. A screw rod (21) that cooperates with the corresponding connecting piece (20) is hingedly connected to the kiln body (2), and a handle nut (22) is screwed onto the screw rod (21).

4. The wood kiln according to claim 1, characterized in that: The kiln door (3) is provided with an observation port (23), and a detachable plug (24) is provided on the observation port (23).

5. The wood kiln according to claim 1, characterized in that: The furnace door (9) is provided with a handle (25).

6. The wood kiln according to claim 1, characterized in that: The exhaust port (15) is in the shape of a horizontal strip, and its width is close to the width of the kiln chamber (1).

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