Furnace door sealing structure of kiln

Abstract

The utility model discloses a furnace door sealing structure which comprises a furnace pipe, a furnace chamber is formed in the furnace pipe in a surrounding mode, a feeding narrow channel which extends horizontally and is communicated with the furnace chamber is formed in the front end of the furnace pipe, a gate channel which is vertically communicated with the feeding narrow channel is formed in the furnace pipe above the feeding narrow channel, and the gate channel is communicated with the feeding narrow channel. A gate plate which can vertically ascend and descend and horizontally stretches across the feeding narrow channel is arranged in the gate channel, and the feeding narrow channel is blocked or emptied along with ascending and descending of the gate plate. A lifting driving assembly used for driving the gate plate to ascend and descend is arranged on the periphery of the furnace pipe, and the driving assembly is connected with the gate plate through at least one preset transmission rod extending and penetrating into the gate channel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of kiln sealing structure, especially a kiln door sealing structure. BACKGROUND

[0002] In the field of industrial kiln, as the production and treatment of new materials such as magnetic materials and new energy materials, the atmosphere and temperature fluctuation in the kiln are also relatively high, and the charging port of the kiln needs to continuously send the sagger loaded with materials, therefore, the atmosphere and heat in the furnace are easy to leak outward through the charging port of the kiln, thereby causing air leakage, heat loss and other problems, resulting in energy loss and temperature fluctuation, therefore, if the leakage of heat and hot atmosphere can be reduced as much as possible under the premise of not interfering with the feeding of materials, it is undoubtedly a technical problem to be solved by the current technical personnel in the field. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, and provides a kiln door sealing structure with excellent sealing performance and stability.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a kiln door sealing structure, which comprises a furnace shell, the inside of the furnace shell is surrounded to form a furnace chamber, the front end of the furnace shell is formed with a horizontal extension and a feeding channel communicated with the furnace chamber, wherein the furnace shell is formed with a gate passage vertically communicated with the feeding channel above the feeding channel, the inside of the gate passage is provided with a gate plate which can be vertically lifted and moved and horizontally span the feeding channel, and the gate plate is lifted and moved to block or avoid the feeding channel, the periphery of the furnace shell is provided with a lifting and driving assembly for driving the gate plate to lift and move, wherein the driving assembly is connected with the gate plate through a transmission rod which is extended through the gate passage.

[0005] Further, a transmission beam is horizontally arranged on the periphery of the furnace shell, wherein the end of the transmission beam is in transmission connection with the lifting and driving assembly, the upper end of each transmission rod is fixedly connected with the transmission beam, and the lower end of each transmission rod is vertically extended through the gate passage and connected with the gate plate.

[0006] Further, each transmission rod is fixedly connected with the transmission beam at equal intervals.

[0007] Further, the periphery of the furnace shell is provided with a guide sliding groove on both sides for sliding cooperation of the two ends of the transmission beam.

[0008] Further, the driving assembly comprises a driving motor, a synchronous rod and two chain wheel assemblies arranged on both sides of the periphery of the furnace tube, wherein the two chain wheel assemblies are connected by two vertical transmission sprockets and a transmission chain wound around the two transmission sprockets, and the two transmission chains are respectively connected to the two ends of the transmission beam; the two ends of the synchronous rod are respectively connected to one of the transmission sprockets in the two chain wheel assemblies on the same shaft, and the output shaft of the driving motor is connected to one of the transmission sprockets in one of the chain wheel assemblies.

[0009] Further, the height of the gate plate is greater than the height of the feeding channel.

[0010] Further, the bottom of the gate plate is provided with a soft blocking strip.

[0011] Further, the height of the feeding channel is less than or equal to 1 / 5 of the height of the furnace chamber.

[0012] Further, the two side end faces of the gate plate are sealingly fitted with the inner side faces of the feeding channel.

[0013] The kiln door sealing structure has the advantages of excellent sealing performance and stability, high efficiency, low energy consumption, long service life and the like. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of the kiln structure.

[0015] Figure 2 is a cross-sectional view of the kiln structure.

[0016] Figure 3 is a schematic view of the gate plate and the lifting driving assembly.

[0017] Figure 4 is an enlarged schematic view of the end of the transmission beam.

[0018] wherein 1 is the furnace tube, 11 is the furnace chamber, 12 is the feeding channel, 13 is the guide chute, 2 is the gate plate, 21 is the soft blocking strip, 3 is the chain wheel assembly, 31 is the driving motor, 32 is the synchronous rod, 4 is the transmission rod, and 5 is the transmission beam. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. The purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] Referring to the drawings Figures 1-4 As shown in the drawings, in the present embodiment, a sealing structure of a furnace door of a kiln, comprising a furnace body 1 built by masonry, wherein the furnace body 1 is internally surrounded to form a furnace chamber 11, and the front end of the furnace body 1 is shaped to have a horizontal extension and is communicated with the furnace chamber 11, and the height of the feeding channel 12 is less than or equal to 1 / 5 of the height of the furnace chamber 11, and the use of such a narrow channel structure can reduce the loss of atmosphere and heat in the furnace chamber 11.

[0021] In the present embodiment, the furnace body 1 is shaped to have a gate channel vertically communicated with the feeding channel 12 above the feeding channel 12, wherein the lower part of the gate channel is communicated with the feeding channel 12 and the rest of the gate channel is a closed structure and is not communicated with the outside. Secondly, the inside of the gate channel is provided with a gate plate 2 which can be vertically lifted and moved horizontally across the feeding channel 12, and the gate plate 2 is lifted and moved to block or avoid the feeding channel 12, that is: in the normal state, the gate plate 2 keeps blocking the feeding channel 12, further reducing the loss of atmosphere and heat in the furnace chamber 11 through the feeding channel 12; and when the material needs to be fed, the gate plate 2 is lifted to avoid the feeding channel 12, so as to smoothly feed the material from the feeding channel 12 and jump over from below the gate plate 2, and after the material completely jumps over the gate plate 2, the gate plate 2 is reset to move downward to block the feeding channel 12.

[0022] In the present embodiment, the periphery of the furnace body 1 is provided with a lifting and driving assembly for driving the gate plate 2 to lift and move, wherein the driving assembly is connected with the gate plate 2 through at least one transmission rod 4 which is pre-set to extend through the gate channel, and specifically, since the gate plate 2 needs to horizontally cross the feeding channel 12, its horizontal length is relatively long, therefore, in order to ensure the stability during lifting, the present embodiment further comprises a transmission beam 5 which is horizontally arranged at the periphery of the furnace body 1, wherein the end of the transmission beam 5 is in transmission connection with the lifting and driving assembly, so that the transmission beam 5 is driven to lift and move under the driving of the lifting and driving assembly. Secondly, the upper end of each transmission rod 4 is fixedly connected on the transmission beam 5 at equal intervals and the lower end of each transmission rod 4 vertically extends through the gate channel and is connected with the gate plate 2, that is: along with the lifting and moving of the transmission beam 5, each transmission rod 4 and the gate plate 2 are synchronously lifted and moved. The use of such a driving mode can make the lifting process of the gate plate 2 more stable and reliable.

[0023] In the present embodiment, the periphery of the furnace body 1 is provided with a guide sliding groove 13 on both sides respectively for the sliding cooperation of the two ends of the transmission beam 5, wherein the two ends of the transmission beam 5 are shaped to have a sliding block which is in sliding cooperation with the two guide sliding grooves 13, and the guide sliding groove 13 is vertically arranged, so as to ensure the stability of the transmission beam 5 during lifting by the sliding cooperation between the guide sliding groove 13 and the sliding block.

[0024] In the embodiment, the driving assembly comprises a driving motor 31, a synchronous rod 32 and two sets of sprocket assemblies 3 arranged on both sides of the periphery of the furnace body 1, wherein the two sets of sprocket assemblies 3 are connected with two vertical transmission sprockets and transmission chains wound around the two transmission sprockets, and the two transmission chains are respectively connected with the two ends of the transmission beam 5; the two ends of the synchronous rod 32 are respectively connected with one of the transmission sprockets in the two sets of sprocket assemblies 3, i.e., the synchronous rod 32 in the embodiment is connected with the upper transmission sprockets in the two sets of sprocket assemblies 3, so as to realize the synchronous lifting action of the two sets of sprocket assemblies 3; and the output shaft of the driving motor 31 is connected with one of the transmission sprockets in one of the two sets of sprocket assemblies 3, i.e., the driving motor 31 is connected with the lower transmission sprocket in one of the two sets of sprocket assemblies 3.

[0025] In the embodiment, the height of the shutter plate 2 is greater than the height of the feeding channel 12, and in this way, the shutter plate 2 can completely cover the feeding channel 12, so as to reduce the air leakage and heat loss.

[0026] In the embodiment, the two side end faces of the shutter plate 2 are tightly sealed with the inner side faces of the feeding channel 12, so that when the shutter plate 2 falls to cover the feeding channel 12, the air leakage from the gap between the side end faces of the shutter plate 2 and the inner side faces of the feeding channel 12 can be avoided.

[0027] In the embodiment, the bottom of the shutter plate 2 is provided with a soft barrier 21, and when the shutter plate 2 is closed, the soft barrier 21 can form a tight seal with the feeding channel 12, so as to prevent the air, i.e., heat, from leaking. In addition, the soft barrier 21 can reduce the collision noise between the shutter plate 2 and the feeding channel 12 during the closing process. Due to the softness of the soft barrier 21, when the soft barrier 21 contacts the door frame, a certain buffering effect can be generated, so as to reduce the noise level.

[0028] Further, the soft barrier 21 needs to be made of a soft material resistant to high temperature, such as an asbestos strip.

[0029] Through the implementation of the above optimization measures, the kiln door sealing structure of the embodiment not only has excellent sealing performance and stability, but also has the advantages of high efficiency, low energy consumption, long service life and the like. In actual application, the operation efficiency and product quality of the kiln can be greatly improved, and the production cost and energy consumption can be reduced.

[0030] The above-described embodiments are only preferred embodiments of the present application, and do not limit the present application in any form. Any skilled person in the art, without departing from the technical scheme of the present application, can make more possible changes, modifications and refinements to the technical scheme of the present application by using the disclosed technical content, or modifications, which are equivalent embodiments of the present application. Therefore, any equivalent changes within the technical scheme of the present application, according to the idea of the present application, should be covered within the protection scope of the present application.

Claims

1. A furnace door sealing structure of a furnace, comprising a furnace body (1) which is internally surrounded to form a furnace chamber (11), characterized in that: The front end of the furnace tube (1) is formed with a horizontal feeding channel (12) extending and communicating with the furnace chamber (11), wherein the furnace tube (1) is formed with a gate passage vertically communicating with the feeding channel (12) above the feeding channel (12), the gate passage is internally provided with a gate plate (2) vertically and horizontally movable across the feeding channel (12), and the gate plate (2) moves vertically and horizontally to block or avoid the feeding channel (12); the furnace tube (1) is externally provided with a lifting drive assembly for driving the gate plate (2) to move vertically and horizontally, wherein the drive assembly is connected with the gate plate (2) through at least one transmission rod (4) extending through the gate passage.

2. A furnace door sealing structure according to claim 1, characterized in that: Further comprising a transmission beam (5) horizontally arranged on the periphery of the furnace tube (1), wherein the end of the transmission beam (5) is in transmission connection with the lifting drive assembly, the upper end of each transmission rod (4) is fixedly connected to the transmission beam (5), and the lower end of each transmission rod (4) vertically extends through the gate passage and is connected with the gate plate (2).

3. A furnace door seal structure according to claim 2, wherein: Each transmission rod (4) is fixedly connected to the transmission beam (5) at equal distances.

4. A furnace door seal structure according to claim 2, wherein: The periphery of the furnace tube (1) is provided with a guide sliding groove (13) on each side for slidingly matching the two ends of the transmission beam (5).

5. A furnace door seal structure according to claim 2, wherein: The drive assembly comprises a driving motor (31), a synchronization rod (32), and two groups of chain wheel assemblies (3) arranged on the periphery of the furnace tube (1) on both sides, wherein the two groups of chain wheel assemblies (3) are composed of two vertically arranged transmission sprockets and transmission chains wound on the two transmission sprockets, and the two transmission chains are connected with the two ends of the transmission beam (5), respectively; the two ends of the synchronization rod (32) are connected with one of the transmission sprockets in the two groups of chain wheel assemblies (3) on the same shaft, and the output shaft of the driving motor (31) is connected with one of the transmission sprockets in one of the chain wheel assemblies (3).

6. A furnace door seal structure according to claim 1, wherein: The height of the gate plate (2) is greater than the height of the feeding channel (12).

7. A furnace door seal structure according to claim 1, wherein: The bottom of the gate plate (2) is provided with a soft baffle (21).

8. A furnace door seal structure according to claim 1, wherein: The height of the feeding channel (12) is less than or equal to 1 / 5 of the height of the furnace chamber (11).

9. A furnace door seal structure according to claim 1, wherein: The two side end faces of the gate plate (2) are sealingly fitted with the inner side faces of the feeding channel (12). The two side end faces of the gate plate (2) are sealingly fitted with the inner side faces of the feeding channel (12).

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