Device for measuring fluidity of blast furnace slag
By designing a device including a slag container, gate, measuring ruler and weighing system, the problems of complexity and difficulty in operation of traditional slag measurement methods are solved, and quantitative detection of slag fluidity and guiding improvement of blast furnace operation are achieved.
Patent Information
- Application Number
- CN202421019534.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The traditional method of measuring the fluidity of slag is complex and difficult to operate, so quantitative analysis cannot be achieved, and there is a large individual deviation and is not very instructive to blast furnace operation.
A device including a slag container, a support frame, a gate, a measuring ruler, a weighing system and a pallet is designed to control the dripping of slag through the gate, and the slag flow performance is evaluated using the weighing system and measuring ruler data.
On-site detection of slag fluidity is realized, quantitative analysis data is provided, individual deviation is reduced, and the guidance of blast furnace operation is enhanced.
Smart Images
Figure CN222671637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device for measuring the fluidity of blast furnace slag, and belongs to the technical field of blast furnace ironmaking production equipment in the metallurgical industry. Background Art
[0002] During the blast furnace smelting process, slag is one of the main by-products. Whether its fluidity is good or not is related to whether the smelting process in the blast furnace can be completed smoothly.
[0003] The traditional method of measuring slag fluidity is to use slag viscosity as a measurement standard. However, the equipment for measuring slag viscosity is complex and difficult to operate. Therefore, during operation, the slag fluidity is only described in a generalized way through experience and cannot be analyzed quantitatively. Affected by experience, there is a problem of large individual deviation, and it is not very instructive for blast furnace operation. Therefore, a device that can both digitize the slag fluidity and facilitate on-site operation is needed to measure the slag fluidity. Utility Model Content
[0004] The utility model aims to provide a device for measuring the fluidity of blast furnace slag, which can conveniently realize on-site detection of the fluidity of slag, thereby guiding blast furnace production and solving the problems existing in the background technology.
[0005] The technical solution of the utility model is:
[0006] A device for measuring the fluidity of blast furnace slag comprises a slag bin, a support frame, a gate, a measuring ruler, a weighing system and a tray. The slag bin is fixed on the support frame, a discharge port is provided at the bottom of the slag bin, a gate is provided on the discharge port, a weighing system and a tray are provided below the discharge port, and a measuring ruler is provided between the discharge port and the tray.
[0007] The gate comprises a handle and a gate plate, the handle is fixed on the gate plate, and the gate plate is rotatably connected to the slag storage bin through a pin shaft.
[0008] The size of the gate plate matches the discharge opening at the bottom of the slag storage bin, and the gate plate rotates horizontally with the pin shaft as the center.
[0009] A locking mechanism is also provided between the gate plate and the slag storage bin.
[0010] The locking mechanism between the gate plate and the slag storage bin comprises a U-shaped hook and a locking tongue, the locking tongue is fixed on the slag storage bin, the U-shaped hook is fixed on the gate plate, and the U-shaped hook and the locking tongue cooperate with each other.
[0011] The slag storage bin is funnel-shaped.
[0012] The measuring ruler between the feeding port and the tray is fixed on the supporting frame in a vertical shape.
[0013] By adopting the utility model, a certain amount of slag is taken from the blast furnace slag ditch, put into the slag storage bin, the gate is opened, the timing is started, the value of the weighing system is read after one minute, and after the slag dripping stops, the measuring ruler is read to measure the slag wire drawing length, and finally the slag flowability is evaluated by combining the weighing system and the measuring ruler data.
[0014] The beneficial effect of the utility model is that it can conveniently realize on-site detection of slag fluidity, thereby guiding blast furnace production. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is the front view of the gate of the utility model;
[0017] Figure 3 This is a top view of the gate of the utility model;
[0018] Figure 4 This is an enlarged view of the locking mechanism of the utility model;
[0019] In the figure: slag bin 1, support frame 2, gate 3, measuring ruler 4, weighing system 5, tray 6, locking mechanism 7, handle 8, pin shaft 9, gate plate 10, U-shaped hook 11, locking tongue 12. DETAILED DESCRIPTION
[0020] The present invention will be further described below by way of examples with reference to the accompanying drawings.
[0021] See attached Figure 1-4 A device for measuring the fluidity of blast furnace slag comprises a slag bin 1, a support frame 2, a gate 3, a measuring ruler 4, a weighing system 5 and a tray 6. The slag bin 1 is fixed on the support frame 2. A discharge port is provided at the bottom of the slag bin 1. A gate 3 is provided on the discharge port. A weighing system 5 and a tray 6 are provided below the discharge port. A measuring ruler 4 is provided between the discharge port and the tray 6.
[0022] In this embodiment, refer to the attached Figure 1-4 The slag bin 1 is made of 3mm heat-resistant steel plate and has a conical shape to facilitate the cleaning of the solidified slag. A Φ10mm opening is left at the bottom as a discharge port, and the slag in the bin drips into the tray 6 through this opening.
[0023] The support frame 2 is welded with Φ10mm steel pipes and plays the role of fixing the slag bin 1 and the measuring ruler 4, and its height is 0.5-1m.
[0024] The measuring ruler 4 is fixed to the support frame 2 by means of buckles, so as to facilitate replacement after damage.
[0025] The weighing system 5 is an electronic weighing system with an accuracy of 0.01 g, and its distance from the gate 3 is a fixed value.
[0026] The tray 6 is made of 3 mm steel plate and is wrapped with insulation material on the outside to reduce damage to the weighing system 5 .
[0027] The gate 3 includes a handle 8 and a gate plate 10. The size of the gate plate 10 matches the discharge port at the bottom of the slag bin 1. The handle 8 is fixed on the gate plate 10. The gate plate 10 is rotatably connected to the slag bin 1 through a pin shaft 9. The gate plate 10 rotates horizontally around the pin shaft 9.
[0028] A locking mechanism 7 is also provided between the gate plate 10 and the slag storage bin 1. The locking mechanism 7 comprises a U-shaped hook 11 and a locking tongue 12. The locking tongue 12 is fixed on the slag storage bin 1, and the U-shaped hook 11 is fixed on the gate plate 10. The U-shaped hook 11 and the locking tongue 12 cooperate with each other.
[0029] When the center of the gate 10 is on the same center line as the center of the slag bin 1, the gate 10 is in a closed state, and the locking mechanism 7 is in a locked state, so that the slag is controlled not to flow out; when the required amount of slag is reached in the slag bin, the gate 10 is rotated to be fully open, and the slag drips, thereby achieving the effect of controlling the slag dripping.
[0030] Before measuring the fluidity of blast furnace slag, the gate 3 is in a closed state, the tray 6 is placed on the weighing system 5, and then the weighing system 6 is reset.
[0031] Take a certain amount of slag from the blast furnace slag ditch, put it into the slag storage bin 1, open the gate 3, start timing, read the value of the weighing system 6 after 1 minute, read the measuring ruler 4 after the slag stops dripping, measure the length of the slag wire drawing, and finally evaluate the slag flowability by combining the data of the weighing system 6 and the measuring ruler 4. For example: take two portions of slag for flowability test, each portion is 500g, one portion of the slag drips onto the tray 6 within one minute and weighs 100g. After the dripping ends, the wire drawing length measured by the measuring ruler 4 is 0.3m; the other portion of slag drips onto the tray 6 within one minute and weighs 123g. After the dripping ends, the wire drawing length measured by the measuring ruler 4 is 0.33m. The flowability of the second portion of slag is better than that of the first portion of slag.
Claims
1. A device for measuring the fluidity of blast furnace slag, characterized in that: The invention comprises a slag storage bin (1), a support frame (2), a gate (3), a measuring ruler (4), a weighing system (5) and a tray (6). The slag storage bin (1) is fixed on the support frame (2). A discharge port is provided at the bottom of the slag storage bin (1). The gate (3) is provided on the discharge port. A weighing system (5) and a tray (6) are provided below the discharge port. A measuring ruler (4) is provided between the discharge port and the tray (6).
2. A device for measuring the fluidity of blast furnace slag according to claim 1, characterized in that: The gate (3) comprises a handle (8) and a gate plate (10); the handle (8) is fixed on the gate plate (10); and the gate plate (10) is rotatably connected to the slag storage bin (1) via a pin shaft (9).
3. A device for measuring the fluidity of blast furnace slag according to claim 2, characterized in that: The size of the gate plate (10) matches the discharge opening at the bottom of the slag storage bin (1), and the gate plate (10) rotates horizontally with the pin shaft (9) as the center.
4. A device for measuring the fluidity of blast furnace slag according to claim 3, characterized in that: A locking mechanism (7) is also provided between the gate plate (10) and the slag storage bin (1).
5. A device for measuring the fluidity of blast furnace slag according to claim 4, characterized in that: The locking mechanism (7) between the gate plate (10) and the slag storage bin (1) comprises a U-shaped hook (11) and a locking tongue (12); the locking tongue (12) is fixed on the slag storage bin (1), the U-shaped hook (11) is fixed on the gate plate (10), and the U-shaped hook (11) and the locking tongue (12) cooperate with each other.
6. A device for measuring the fluidity of blast furnace slag according to claim 1, characterized in that: The slag storage bin (1) is funnel-shaped.
7. The device for measuring the fluidity of blast furnace slag according to claim 1, characterized in that: The measuring ruler (4) between the discharge port and the tray (6) is fixed vertically on the support frame (2).