Online slag cleaning device for tunnel kiln

Abstract

The utility model discloses a kind of online deslagging devices for tunnel kiln, it solves the problem of inconvenient production maintenance existed in prior art, it is characterized by: according to production process needs and interval setting between the deslagging device of the length direction two sides curve seal of kiln body (1) and sand seal groove (4), the deslagging device is composed of deslagging box (5), deslagging port and deslagging door cover (6), for collecting and cleaning the powder-like material falling from kiln car (2), prevent it from falling into kiln car sand seal groove (4) and cause blockage. To ensure normal production and normal operation of kiln. The deslagging device structure is simple, easy to install, can realize on-line deslagging without shutdown, guarantee kiln continuous stable operation, improve production efficiency. It can be widely applied to continuous production tunnel kiln of finished product as powder.

Description

Technical Field

[0001] This utility model belongs to the field of kiln equipment technology, specifically relating to an online slag removal device for tunnel kilns, which is particularly suitable for handling the slag removal problem caused by the falling of brittle and powdery materials during the firing process. Background Technology

[0002] Tunnel kilns are widely used in industries such as ceramics, refractory materials, and building materials. They use kiln cars to carry products for firing or heat treatment within the kiln. In some processes, products (such as rectangular bricks) may break or pulverize at high temperatures, forming powdery materials. This powder easily falls from the edges of the kiln car and enters the sand seal trough along the gap between the kiln car and the kiln body. Long-term accumulation can cause blockage of the sand seal trough, affecting kiln car operation and even forcing kiln shutdown for cleaning, severely impacting production efficiency and equipment lifespan. Currently, the common method for cleaning is manual cleaning during machine shutdown, which is inefficient and disrupts production continuity. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned shortcomings and defects in the existing technology by providing an online slag removal device for tunnel kilns that is structurally reasonable, flexibly installed, conveniently maintained, and stably operated.

[0004] The technical solution adopted in this utility model is as follows: It includes a kiln body, kiln cars, heating devices, and automatic control devices, etc. Slag-cleaning devices are arranged at intervals on the kiln walls along both sides of the tunnel kiln body and on the kiln walls below the curved seal of the kiln cars. These devices are used to receive and collect powdery materials falling from the products on the kiln cars. The slag-cleaning device consists of a slag-cleaning box, a slag discharge port, and a slag-cleaning door cover. The slag-cleaning box is located on the kiln wall below the curved seal, and the slag discharge port is positioned on the falling path between the curved seal gap and the sand seal trough to intercept and collect the falling material, thereby fundamentally preventing blockage of the sand seal trough. The slag-cleaning door cover hinge is located on the slag discharge port of the slag-cleaning box outside the kiln wall.

[0005] Furthermore, the slag removal box is a trough-shaped or box-shaped structure with a "U"-shaped or "O"-shaped cross-section. It is detachably connected to the side wall below the curved sealing structure of the tunnel kiln and is arranged at intervals along the length of the tunnel kiln. It is located below the curved sealing gap of the kiln car and above the sand sealing trough of the kiln car. Its core function is to intercept and collect the falling powder material (generated by product breakage) in the necessary path into the sand sealing trough, thereby fundamentally preventing the sand sealing trough from becoming clogged. It is fixed to the curved sealing structure on the inner side wall of the tunnel kiln using brackets, bolts, or welding, ensuring a secure installation and easy maintenance.

[0006] Furthermore, to adapt to different working conditions and production rhythms, the slag removal device can be set at certain intervals along the length of the tunnel kiln, with each section of the device installed independently and appearing in pairs on both sides of the kiln.

[0007] Furthermore, to facilitate cleaning and maintenance, a slag discharge port is provided outside the kiln wall for the slag cleaning box. For this slag discharge port, this invention designs a slag cleaning door cover that can be quickly opened and closed. One side of the slag cleaning door cover is connected to the edge of the slag discharge port via a hinge, allowing the slag cleaning door cover to rotate outwards like a door. On the other side of the slag cleaning door cover, one or two manual quick-release latches are provided to securely and reliably lock the slag cleaning door cover onto the slag discharge port when closed. A U-shaped or ring-shaped operating handle is welded to the center of the outer surface of the slag cleaning door cover for easy application of force by the operator.

[0008] This utility model, through the fundamental principle of "interception and collection" and the convenient structure of "quick-opening cover", enables efficient, targeted, and convenient online cleaning of harmful powders while the kiln is running continuously. The technical solution is simple, ingenious, and highly practical.

[0009] The beneficial effects of this invention are as follows: By installing a slag removal device between the product and the sand sealing tank, fallen powder material can be collected in real time without stopping the machine, preventing it from entering the sand sealing tank. This achieves online collection and isolation of powder material, effectively preventing blockage of the sand sealing tank, reducing the frequency of kiln maintenance, improving equipment operating rate and production continuity, and ensuring continuous and stable operation of the kiln. The device has a reasonable structure, flexible installation, convenient maintenance, and stable operation, exhibiting high practicality and economy.

[0010] The present invention will be further described below with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 2 This is a schematic diagram showing the installation position of this utility model along the length of the kiln; Figure 3 This is a schematic diagram of the main structure of the slag removal door cover of this utility model; Figure 4 This is a top view of the slag removal door cover of this utility model.

[0012] In the diagram: 1 is the kiln body, 2 is the kiln car, 3 is the product, 4 is the sand seal trough, 5 is the slag cleaning furnace door, 6 is the slag cleaning door cover, 7 is the hinge, 8 is the manual quick-release door latch, 9 is the operating handle, and 10 is the curved seal gap. Detailed Implementation

[0013] like Figure 1As shown, the online slag removal device for tunnel kilns includes a kiln body 1, kiln cars 2, heating devices, and automatic control devices, etc. Slag removal devices are arranged at intervals along the length of the tunnel kiln body 1 on both sides of the kiln wall and at the curved seal of the kiln car, used to receive and collect powdery materials falling from the product 3 on the kiln car 2. To adapt to different working conditions and production rhythms, the slag removal devices can be set at certain intervals along the length of the tunnel kiln, with each section installed independently and appearing in pairs on both sides of the kiln. This slag removal device consists of a slag removal box 5, a slag discharge port, and a slag removal door cover 6. The slag removal box 5 is set on the kiln wall below the curved seal, with the slag receiving port placed on the falling path between the curved seal gap 10 and the sand seal groove 4. The slag removal box 5 has a trough-shaped or box-shaped structure with a "U"-shaped or "O"-shaped cross-section and can be detachably connected to the side wall below the curved seal structure of the tunnel kiln. For convenient cleaning and maintenance, the slag removal box 5 has a slag discharge port located outside the kiln wall. For this slag discharge port, this utility model designs a slag cleaning door cover 6 that can be quickly opened and closed. One side of the slag cleaning door cover 6 is connected to the edge of the slag discharge port via a hinge 7, allowing the slag cleaning door cover 6 to rotate outward like a door. On the other side of the slag cleaning door cover 6, one or two manual quick-release latches 8 are provided to securely and reliably lock the slag cleaning door cover 6 onto the slag discharge port when closed. A U-shaped or ring-shaped operating handle 9 is welded to the center of the outer surface of the slag cleaning door cover 6 for easy application of force by the operator. When implementing this utility model, after the product 3 is fired or heat-treated in the kiln, in some processes, the product 3 (such as rectangular bricks) may break or pulverize at high temperatures, forming powdery material. After these powders fall from the edge of the kiln car, they fall downward through the curved sealing gap 10 into the slag cleaning box 5 located above the sand sealing trough 4 of the kiln car, thus effectively preventing these powders from falling directly into the sand sealing trough 4 and causing blockage. At regular intervals, the operator can easily remove the powdery material accumulated in the slag cleaning box 5 by manually opening the quick-release latch 8 to open the slag cleaning door cover 6. After cleaning, the slag cleaning door cover 6 can be quickly closed to restore a sealed state, effectively preventing the leakage of hot air or the intrusion of cold air from the kiln. This invention has advantages such as reasonable structure, flexible installation, convenient maintenance, and stable operation. It can operate continuously during kiln operation, achieving slag cleaning without shutting down the machine, significantly improving the stability and production efficiency of kiln operation. Its widespread application will bring good economic and social benefits to production enterprises.

Claims

1. An online slag cleaning device for a tunnel kiln, comprising a kiln body, a kiln car, a heating device, and an automatic control device, characterized in that: Slag removal devices are arranged at intervals on the kiln walls on both sides of the tunnel kiln body (1) and on the kiln wall below the curved seal of the kiln car. These devices are used to receive and collect powdery materials falling from the product (3) on the kiln car (2). The slag removal device consists of a slag removal box (5), a slag discharge port, and a slag removal door cover (6). The slag removal box (5) is set on the kiln wall below the curved seal of the kiln wall. The slag receiving port is placed on the falling path between the curved seal gap (10) and the sand seal groove (4). The hinge of the slag removal door cover (6) is set on the slag discharge port of the slag removal box (5) located outside the kiln wall.

2. The online slag removal device for tunnel kilns according to claim 1, characterized in that: The slag removal box (5) is a trough-shaped or box-shaped structure with a "U" or "O" shaped cross section, and can be detachably connected to the side wall below the tunnel kiln curved sealing structure.

3. The online slag removal device for tunnel kilns according to claim 1 or 2, characterized in that: To adapt to different working conditions and production rhythms, the slag removal devices are set at certain intervals along the length of the tunnel kiln, with each section of the device installed independently and appearing in pairs on both sides of the kiln.

4. The online slag removal device for tunnel kilns according to claim 3, characterized in that: The slag removal box (5) has an openable and closable slag removal door cover (6) on its external slag discharge port. One side of the slag removal door cover (6) is connected to the edge of the slag discharge port by a hinge (7). On the other side of the slag removal door cover (6), there are 1 to 2 manual quick-release door buckles (8). An operating handle (9) is provided in the center of the outer surface of the slag removal door cover (6).

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