Electric slag scraping and concentrated transportation device and method for water seal tank of heating furnace

Abstract

The electric slag scraping and concentrated transportation device comprises a moving trolley and a slag scraping mechanism, a slag collecting box is arranged on the moving trolley, wheels are arranged at the four corners of the bottom of the moving trolley, and the slag scraping mechanism is arranged on one side of the moving trolley in the advancing direction. According to the steel slag collecting and scraping device, workers can be assisted to conduct regular slag scraping and steel slag collecting and transporting operation, the cost is reduced, meanwhile, the labor intensity of the workers is relieved, and the slag removing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of heating furnaces, and in particular to an electric slag scraping and collection device and method for a water seal tank of a heating furnace. Background Art

[0002] The water seal tank of the heating furnace is a sealing device used in the heating furnace for steel smelting. During the production process, the iron oxide scale dropped from the steel billet in the furnace will fall into the water seal tank along the skirt cover. Ideally, the scraper plate fixed to the skirt cover will scrape the iron oxide scale in the water seal tank to the end of the water seal tank as the furnace bottom mechanical stepping action, and then scatter to the ground from the end drop hole. However, in reality, the steel slag at the bottom of the tank cannot be cleaned well due to factors such as the scraper plate's scraping ability and deformation, the quality of the turbid water in the tank body, the structural design and matching of the scraper and the tank body, and so on. After a long time, steel slag will accumulate. Excessive accumulation of steel slag may affect the function of the scraper plate, and in severe cases may cause the scraper to deform, or even scrape the bottom plate of the water seal tank, affecting the production rhythm. Therefore, it is necessary to regularly stop the furnace to clean the iron oxide scale at the bottom of the water seal tank. Considering the possibility of deformation of the scraper plate and damage to the tank body, some steel mills even directly cancel the scraper plate and adopt regular manual slag cleaning. Regardless of whether the scraper plate is conventionally set or removed, during regular slag cleaning, workers need to use shovels to remove the steel slag from the water seal tank one by one on the platform next to the water seal tank. Because the water seal tank is fixed to the bottom of the furnace with a sealed skirt cover, the distance between the skirt cover and the water seal tank bodies on both sides is small. At the same time, the operating space is small, the ambient temperature is high, and it is located in the gas area at the bottom of the furnace, which makes it difficult for workers to operate and has low efficiency.

[0003] Therefore, it is necessary to develop a device suitable for complex working conditions to assist workers in performing regular slag scraping and slag collection and transportation operations. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an electric slag scraping and collection device and method for the water seal tank of a heating furnace in order to assist manual work in completing regular operations and cleaning the accumulated slag at the bottom of the water seal tank in response to the above-mentioned problems.

[0005] The embodiment of the present application is implemented as follows: An embodiment of the present application provides an electric slag scraping and collecting device for a water seal tank of a heating furnace, characterized in that it comprises a mobile trolley and a slag scraping mechanism, wherein a slag collecting box is provided on the mobile trolley, wheels are provided at the four corners of the bottom of the mobile trolley, and the slag scraping mechanism is installed on one side of the forward direction of the mobile trolley, and the steel slag is scraped off by the slag scraping mechanism and then enters the slag collecting box for collection.

[0006] In some optional embodiments, the slag collecting box is provided with a slag guide plate which is inclined and extends forward and downward on the front side facing the slag scraping mechanism.

[0007] In some optional embodiments, the scraping mechanism includes a scraping drive motor, a rotating cylinder, and scraping blades. The scraping blades are evenly spaced along the circumference of the rotating cylinder. The scraping drive motor is connected to the rotating cylinder to drive the rotating cylinder to rotate.

[0008] In some optional embodiments, a box door is provided on the rear side of the slag collecting box away from the slag scraping mechanism, and the box door is hingedly connected to one side of the slag collecting box.

[0009] In some optional embodiments, the scraping mechanism further includes a blade guard plate, which is an arc-shaped plate, arranged corresponding to the upper front of the rotating cylinder and covered on the outside of the rotating cylinder.

[0010] In some optional embodiments, the wheel is an anti-skid wheel with toothed protrusions on the outer surface, and the wheel is driven by the trolley driving motor to rotate forward.

[0011] In some optional embodiments, the slag collecting box is provided with a lifting lug on the top and a roller on the side wall.

[0012] In some optional embodiments, the box door and the other side of the slag collecting box are positioned and locked by a latch.

[0013] In some optional implementation schemes, the slag collecting box is provided with a battery, and the battery is used to supply power to the slag scraping drive motor and the trolley drive motor respectively.

[0014] The method for using the electric scraper and collection device for the water seal tank of the heating furnace is characterized by comprising the following contents: Step 1: After the heating furnace is stopped and the water seal tank is drained, a small area is cleared at the end. With the help of a traction tool and the side wall rollers of the slag collecting box, the mobile trolley is sent along the inner wall of the tank to the bottom of the tank. After adjusting the position, the placement work is completed; Step 2: Start the power supply, the scraper drive motor and the trolley drive motor drive the scraper mechanism and the wheels to run respectively, the mobile trolley moves along the bottom steel plate at the bottom of the tank, and the slag at the bottom of the tank enters the slag collecting box along the slag guide plate under the joint action of the scraper blades and the slag guide plate; Step 3: After the mobile trolley completes the scraping work or the slag box is full of slag, the mobile trolley stops operating, and the mobile trolley is taken out from the bottom of the tank along the inner wall of the tank by using the side wall rollers of the slag box with the help of a traction tool; Step 4: Open the door of the slag collecting box, take out the slag in the box, close and lock the door after taking it out, and put it back into the tank according to the actual situation to complete all slag cleaning work.

[0015] The beneficial effects of the present application are as follows: the present application provides an electric slag scraping and collection device and method for the water seal tank of a heating furnace, which cleans and collects the steel slag at the bottom of the tank into a slag collecting box on the mobile trolley through the slag scraping mechanism and the moving operation of the mobile trolley at the bottom of the water seal tank. Workers only need to use traction tools to complete the placement and removal of the mobile trolley, and can complete the regular slag cleaning work of the water seal tank safely and efficiently; at the same time, it is designed according to the structural characteristics and actual conditions of the water seal tank, and can be suitable for slag cleaning work of water seal tanks of various structural forms, and only needs to adjust some dimensions of the equipment according to the passage width to meet the applicability requirements of various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A side view of an embodiment of the present application; Figure 2 A front view of a scraping mechanism according to an embodiment of the present application; Figure 3 This is a schematic diagram of the structure of the wheel of an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0025] like Figure 1 , Figure 2 As shown, the present invention proposes an electric slag scraping and collecting device for a water seal tank of a heating furnace, comprising a mobile trolley 1 and a slag scraping mechanism. A slag collecting box 2 is provided on the mobile trolley, wheels 3 are provided at the four corners of the bottom of the mobile trolley, and the slag scraping mechanism is installed on one side of the forward direction of the mobile trolley. The steel slag is scraped off by the slag scraping mechanism and then enters the slag collecting box for collection.

[0026] The slag collecting box is provided with a slag guide plate 4 extending forward and downward and arranged obliquely toward the front side of the scraping mechanism. The steel slag at the bottom of the water seal groove enters the slag collecting box along the slag guide plate, and at the same time plays a partial scraping function, creating good running conditions for the rear wheels.

[0027] The scraping mechanism comprises a scraping drive motor, a rotating cylinder 5 and scraping blades 6. The scraping blades are evenly spaced along the circumference of the rotating cylinder. The scraping drive motor is connected to the rotating cylinder to drive the rotating cylinder to rotate.

[0028] In some optional implementation schemes, the scraping blades are designed to be arc-shaped and are distributed in an interlaced manner around the rotating cylinder. The scraping drive motor drives the rotating cylinder and the scraping blades to rotate, thereby scraping and sucking the slag and sending the slag into the slag collecting box.

[0029] The slag box is provided with a door on the rear side away from the scraping mechanism. The door is hingedly connected to one side of the slag box, and the door is locked with the other side of the slag box by a latch. The slag box is provided with a movable door to facilitate the emptying and cleaning of the slag box.

[0030] Example 1 In this embodiment, the scraping mechanism further includes a blade guard plate 7, which is an arc-shaped plate, arranged corresponding to the upper front of the rotating cylinder and covered with the rotating cylinder, to protect the scraping mechanism and prevent oversized debris from entering the scraping mechanism and causing mechanical failure.

[0031] like Figure 3 As shown, the wheel is an anti-skid wheel with toothed protrusions 8 on the outer surface, and the wheel is driven by the trolley drive motor to rotate and move forward. The wheel is designed as a toothed anti-skid wheel, which is better adapted to the complex working conditions at the bottom of the water seal tank.

[0032] In some optional embodiments, a lifting lug 9 is provided on the top of the slag collecting box, which can be used in conjunction with a rope or other traction tool to lift and place the device; a roller 10 is provided on the side wall of the slag collecting box to assist manual lifting and placement of the device.

[0033] In some optional implementation schemes, a battery 11 is provided on the slag collecting box, and the battery is used to supply power to the slag scraping drive motor and the trolley drive motor respectively.

[0034] The method of using the electric scraper and collection device includes the following contents: Step 1: After the heating furnace is stopped and the water seal tank is drained, a small area is cleared at the end. With the help of a traction tool and the side wall rollers of the slag collecting box, the mobile trolley is sent along the inner wall of the tank to the bottom of the tank, and the placement work is completed after adjusting the position.

[0035] Step 2, start the power supply, the scraper drive motor and the trolley drive motor drive the scraper mechanism and the wheels respectively, and the mobile trolley moves along the bottom steel plate at the bottom of the trough. The steel slag at the bottom of the trough enters the slag collecting box along the slag guide plate under the joint action of the scraper blades and the slag guide plate.

[0036] Step three, after the mobile trolley completes the slag scraping work or the slag box is full of slag, the mobile trolley stops operating, and the mobile trolley is taken out from the bottom of the tank along the inner wall of the tank using the side wall rollers of the slag box with the help of a traction tool.

[0037] Step 4: Open the door of the slag collecting box, take out the slag in the box, close and lock the door after taking it out, and put it back into the tank according to the actual situation to complete all slag cleaning work.

Claims

1. An electric scraper and collection device for a water seal tank of a heating furnace, characterized in that: It includes a mobile trolley and a slag scraping mechanism. The mobile trolley is provided with a slag collecting box. Wheels are provided at the four corners of the bottom of the mobile trolley. The slag scraping mechanism is installed on one side of the moving direction of the mobile trolley. The steel slag is scraped off by the slag scraping mechanism and then enters the slag collecting box for collection.

2. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 1, characterized in that: The slag collecting box is provided with a slag guiding plate which is extended forward and downward and is arranged obliquely toward the front side of the slag scraping mechanism.

3. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 2, characterized in that: The scraping mechanism comprises a scraping drive motor, a rotating cylinder, and scraping blades. The scraping blades are evenly spaced along the circumference of the rotating cylinder. The scraping drive motor is connected to the rotating cylinder to drive the rotating cylinder to rotate.

4. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 2 or 3, characterized in that: A box door is provided on the rear side of the slag collecting box away from the slag scraping mechanism, and the box door is hingedly connected to one side of the slag collecting box.

5. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 3, characterized in that: The scraping mechanism also includes a blade guard plate, which is an arc-shaped plate, arranged corresponding to the upper front of the rotating cylinder and covered on the outside of the rotating cylinder.

6. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 1 or 5, characterized in that: The wheel is an anti-skid wheel with tooth-shaped protrusions on the outer surface, and the wheel is driven by the trolley driving motor to rotate and move forward.

7. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 4, characterized in that: The top of the slag collecting box is provided with a lifting lug, and the side wall is provided with a roller.

8. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 7, characterized in that: The box door and the other side of the slag collecting box are positioned and locked by a latch.

9. The electric scraper and collection device for the water seal tank of a heating furnace according to claim 8, characterized in that: The slag collecting box is provided with a battery, and the battery is used to supply power to the slag scraping drive motor and the trolley drive motor respectively.

10. The method for using the electric scraper and collection device for the water seal tank of a heating furnace according to claim 9, characterized in that: It includes the following: Step 1: After the heating furnace is stopped and the water seal tank is drained, a small area is cleared at the end. With the help of a traction tool and the side wall rollers of the slag collecting box, the mobile trolley is sent along the inner wall of the tank to the bottom of the tank. After adjusting the position, the placement work is completed; Step 2: Start the power supply, the scraper drive motor and the trolley drive motor drive the scraper mechanism and the wheels to run respectively, the mobile trolley moves along the bottom steel plate at the bottom of the tank, and the slag at the bottom of the tank enters the slag collecting box along the slag guide plate under the joint action of the scraper blades and the slag guide plate; Step 3: After the mobile trolley completes the scraping work or the slag box is full of slag, the mobile trolley stops operating, and the mobile trolley is taken out from the bottom of the tank along the inner wall of the tank by using the side wall rollers of the slag box with the help of a traction tool; Step 4: Open the door of the slag collecting box, take out the slag in the box, close and lock the door after taking it out, and put it back into the tank according to the actual situation to complete all slag cleaning work.

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