Novel water seal structure of heating furnace

Abstract

The utility model relates to a novel water seal structure of a heating furnace and belongs to the technical field of heating furnaces. Comprising a plurality of water seal tanks which are mutually independent and arranged in sequence, and the water seal tanks are all fixed on a movable frame; a skirt cover is arranged at the tail part of any water seal tank, the skirt cover is arranged on the side surface of the adjacent water seal tank, and the water seal tanks are communicated with the skirt cover; a slag falling opening is formed in the tail end of the skirt cover, and a furnace pit is arranged below the slag falling opening. A plurality of water seal cutters which are arranged at intervals are arranged above the water seal tank, and the water seal cutters are fixed on the furnace bottom girder; the bottoms of the water seal cutters are respectively arranged in the water seal tank; an inclined slag scraping unit is arranged on the water seal cutter at the joint of the water seal tank and the skirt cover, pushes oxidizing slag to enter an inner cavity of the skirt cover and is collected in the furnace pit through a slag falling opening. The device is simple in structure and convenient to operate, it is ensured that the blind area at the tail end of each water seal tank is completely scraped, oxidizing slag is prevented from being accumulated in the blind area at the tail end of each water seal tank, and safety is improved.

Description

Technical Field

[0001] The utility model relates to a novel water seal structure of a heating furnace, belonging to the technical field of heating furnaces. Background Art

[0002] During the steel-tapping process of the heating furnace, the oxidized slag in the water seal tank is gradually sent from the steel-tapping end to the steel-inlet end, and finally falls into the collection tank at the tail of the steel-inlet end. At present, the water seal tank is generally designed irrationally, resulting in the accumulation of oxidized slag in the blind area at the end of each section of the water seal tank. During the steel-tapping process, the scraper plate, the water seal tank and the accumulated slag squeeze each other, causing the water seal tank to crack and leak, causing the water level of the water seal tank to drop, and the unburned gas in the furnace will escape from the water seal tank, posing a major safety hazard, and eventually forced to shut down the furnace for emergency repairs. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a new water seal structure for a heating furnace in view of the above-mentioned prior art, which has a simple structure and is easy to operate, ensuring that the blind area at the end of each water seal groove is scraped clean, avoiding the accumulation of oxidized slag in the blind area at the end of each water seal groove, and improving safety.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problems is: a new water seal groove structure of a heating furnace, comprising a plurality of water seal grooves that are independent of each other and arranged in sequence, and the water seal grooves are all fixed on a movable frame; the tail portion of any of the water seal grooves is respectively provided with a skirt cover, the skirt cover is arranged on the side of the adjacent water seal groove, and the water seal groove and the skirt cover are connected; a slag drop opening is provided at the end of the skirt cover, and a furnace pit is provided below the slag drop opening; a plurality of water seal knives arranged at intervals are provided above the water seal groove, and the water seal knives are fixed on the furnace bottom beam; the bottoms of the water seal knives are respectively provided in the water seal groove; an inclined slag scraping unit is provided on the water seal knife at the connection between the water seal groove and the skirt cover, and the slag scraping unit pushes the oxidized slag into the inner cavity of the skirt cover and collects it in the furnace pit through the slag drop opening.

[0005] The scraping unit comprises a plurality of scraping plates arranged obliquely, the scraping plates are evenly distributed along the bottom of the water sealing knife, and the plurality of scraping plates form an arc.

[0006] The inclination angle of any of the scraper plates is 40 to 50 degrees.

[0007] Any of the scraper plates comprises a mounting plate, and a reinforcing rib plate is arranged on the side of the mounting plate.

[0008] Compared with the prior art, the utility model has the following advantages: a new water seal structure for a heating furnace, multiple water seal slots are independent structures, and a slag drop port is provided on the skirt cover of each water seal slot to ensure that each water seal slot operates independently without affecting each other. The utility model has a simple structure and convenient operation. Through the design of the scraper plate, it ensures that the blind area at the end of each water seal slot is scraped cleanly, avoiding the accumulation of oxidized slag in the blind area at the end of each water seal slot, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of a new water seal structure of a heating furnace according to an embodiment of the utility model;

[0010] Figure 2 for Figure 1 Middle partial schematic diagram;

[0011] Figure 3 is a schematic diagram of a scraper plate;

[0012] Figure 4 This is a side view of the installation of a new water seal structure for a heating furnace according to an embodiment of the utility model;

[0013] In the figure, 1 is a water seal groove, 2 is a water seal knife, 3 is a skirt cover, 4 is a slag drop port, 5 is a slag scraper plate, 5.1 is a mounting plate, 5.2 is a reinforcing rib plate, 6 is a furnace bottom beam, and 7 is a movable frame. DETAILED DESCRIPTION

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] like Figure 1 , 2 As shown in Figures 4 and 5, a new water seal structure of a heating furnace in this embodiment includes a number of water seal grooves 1 that are independent of each other and arranged in sequence. The water seal grooves 1 are all fixed on the movable frame 7. When the movable frame 7 is lifted or lowered, the water seal grooves 1 are driven to be lifted or lowered synchronously; when the movable frame 7 is reciprocated forward and backward, the water seal grooves 1 are driven to move synchronously. The tail of any water seal groove 1 is provided with a skirt cover 3, and the skirt cover 3 is arranged on the side of the adjacent water seal groove 1. The inner cavity of the water seal groove 1 is connected with the inner cavity of the skirt cover 3. A slag outlet 4 is provided at the end of the skirt cover 3, and a furnace pit is provided below the slag outlet 4. A plurality of water seal knives 2 arranged at intervals are provided above the water seal groove 1. The water seal knife 2 is fixed on the furnace bottom beam 6, and the bottom of the water seal knife 2 is provided in the water seal groove 1. An inclined slag scraping unit is provided on the water seal knife 2 at the connection between the water seal groove 1 and the skirt cover 3. When the movable frame drives the water seal tank to move upward, the scraping unit contacts the oxidized slag at the bottom of the water seal tank; when the movable frame drives the water seal tank to move, the scraping unit pushes the oxidized slag obliquely upward into the inner cavity of the skirt cover; the slag dropping port is opened to collect the oxidized slag in the furnace pit.

[0016] The lifting movement of the movable frame is driven by a first furnace bottom hydraulic cylinder arranged vertically, and the forward and backward reciprocating movement of the movable frame is driven by a second furnace bottom hydraulic cylinder arranged horizontally.

[0017] The scraping unit comprises a plurality of scraping plates 5, which are evenly distributed along the bottom of the water seal knife 2, and the plurality of scraping plates form an arc. Any scraping plate 5 is arranged at an angle of 45 degrees, so that the scraped oxidized slag can be pushed obliquely upward.

[0018] like Figure 3 As shown, any scraper plate includes a vertically arranged mounting plate 5.1, which is fixed obliquely on the water seal knife 2. A triangular reinforcing rib plate 5.2 is arranged on the side of the mounting plate 5.1, that is, the scraper plate is T-shaped. The oxidized slag is scraped obliquely upward according to the installation angle of the steel plate, avoiding accumulation in dead corners while ensuring that the scraper plate does not deform.

[0019] Multiple water seal tanks are independent structures, and a slag drop port is set on the skirt cover of each water seal tank to ensure that each water seal tank operates independently without affecting each other. The application has a simple structure and is easy to operate. Through the design of the scraper plate, it ensures that the blind area at the end of each water seal tank is scraped cleanly, avoiding the accumulation of oxidized slag in the blind area at the end of each water seal tank, thereby improving safety.

[0020] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A new water seal structure for a heating furnace, characterized in that: It comprises a plurality of water seal grooves which are independent of each other and arranged in sequence, and the water seal grooves are all fixed on a movable frame; the tail of any of the water seal grooves is provided with a skirt cover, and the skirt cover is arranged on the side of the adjacent water seal groove, and the water seal groove and the skirt cover are connected; a slag dropping opening is provided at the end of the skirt cover, and a furnace pit is provided below the slag dropping opening; a plurality of water seal knives which are arranged at intervals are provided above the water seal groove, and the water seal knives are fixed on the furnace bottom beam; the bottoms of the water seal knives are respectively provided in the water seal groove; an inclined slag scraping unit is provided on the water seal knife at the connection between the water seal groove and the skirt cover, and the slag scraping unit pushes the oxidized slag into the inner cavity of the skirt cover, and collects the oxidized slag in the furnace pit through the slag dropping opening.

2. The novel water seal structure of a heating furnace according to claim 1 is characterized in that: The scraping unit comprises a plurality of scraping plates arranged obliquely, the scraping plates are evenly distributed along the bottom of the water sealing knife, and the plurality of scraping plates form an arc.

3. The novel water seal structure of a heating furnace according to claim 2 is characterized in that: The inclination angle of any of the scraper plates is 40 to 50 degrees.

4. The novel water seal structure of a heating furnace according to claim 2 is characterized in that: Any of the scraper plates comprises a mounting plate, and a reinforcing rib plate is arranged on the side of the mounting plate.

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