CN2368030Y - Fire-retradant material high-temp. performance analog instrument - Google Patents

Abstract

The utility model relates to a refractory performance detection and testing device. A smelting furnace is arranged at the right end of the main machine, and the steel flow channel and the slag flow channel are respectively connected to the molten steel storage tank, the slag storage tank, the steel flow channel and the steel flow channel through the steel flow port and the slag flow port Valves, refractory material test area, sample thickness measuring device, speedometer and thermocouple are set in the flow slag channel, and refractory material sample area, anti-bending pressure system, partition, anti-bending pressure rod, anti-bending Pressure oil cylinder, etc., this device can complete the test of refractory material's resistance to molten steel erosion erosion, slag erosion resistance test, high temperature flexural strength test, not only suitable for carbon-containing refractory materials but also other refractory materials and a small amount of metal smelting tests.

Description

High temperature performance simulator for refractories

The utility model relates to a refractory performance detection and testing device.

The parts of kilns that adopt slag-making smelting technology are mainly used in carbon-containing refractory materials, so the refractory materials are required to have strong high-temperature slag resistance and high-temperature flexural strength.

At present, the test and analysis of anti-slag performance mostly adopts the rotary anti-slag furnace of <comparison method>, because this kind of anti-slag furnace uses gas fuel to directly burn and heat the sample and slag sample. When testing carbon-containing refractory materials, the surface carbon of the sample is lost by oxidation and combustion, so the test results obtained lack authenticity. And because it is difficult to distinguish and determine the temperature in the furnace chamber and the flame reaction temperature, the test condition parameters lack accuracy. Since this test method cannot meet the more realistic test conditions, the test results using the <comparison method> can only be used as a comparative analysis of different materials. The high temperature flexural strength testing machine currently used measures the flexural strength of materials at a specified temperature, so it lacks the simulation of the actual use conditions of refractory materials.

The purpose of the utility model is to provide a refractory material high temperature performance simulator which can detect and test the high temperature slag resistance performance and high temperature flexural strength performance of the refractory material with the actual use condition of the refractory material as the simulation test condition.

It consists of a machine base and four hydraulic lifting cylinders supported by the main engine through the support point; the right end of the main engine is equipped with a melting furnace; the lower part of the melting furnace is equipped with a flow steel port connected with the molten steel storage tank through a flow steel channel; a flow slag is set in the middle of the melting furnace The outlet is connected with the slag storage tank through the slag flow channel; valve 1, valve 2, refractory material sample area, sample thickness measuring device, speed detector and thermocouple are respectively set in the steel flow channel and slag flow channel; The upper part of the inner cavity of the storage tank is equipped with a refractory material sample area, a flexural pressure system, a partition, a flexural pressure rod (25), a flexural pressure cylinder and an external lifting cylinder of the flexural system; the left side of the molten steel storage tank and the slag storage tank A steel tapping port, a slag tapping port and a valve 3 are respectively arranged, and an interconnected ventilation channel is provided on the right side, and the ventilation channel communicates with the ventilation port and the external air bag.

The material of the parts in contact with the high-temperature liquid substance inside the channel part and the storage tank part adopts high-purity and high-strength graphite material.

The utility model can complete the molten steel erosion resistance test, the slag erosion resistance test and the high temperature flexural strength test of the refractory material in one working process. It is a multi-functional high-temperature performance simulator for refractory materials with strong simulation capabilities.

Accompanying drawing 1 is the front view of the utility model;

Accompanying drawing 2 is the right view of the utility model;

Accompanying drawing 3 is the A-B direction sectional view of Fig. 1 of the present utility model;

Accompanying drawing 4 is the B-B direction sectional view of Fig. 1 of the present utility model;

Accompanying drawing 5 is the C-C direction sectional view of Fig. 2 of the utility model;

Accompanying drawing 6 is the D-D direction sectional view of Fig. 2 of the present utility model;

Accompanying drawing 7 is a schematic diagram of the charging state from the right side of the utility model;

Accompanying drawing 8 is the schematic diagram of the slag discharging state viewed from the right side of the utility model.

The utility model is achieved in this way.

The machine base (1) and four hydraulic lifting cylinders (2) support the main machine (3) through the support point (21); the right end of the main machine (3) is provided with a melting furnace (4), and the lower part of the melting furnace (4) is provided with flow steel The mouth is communicated with the molten steel storage tank (8) through the steel flow channel (7); a slag flow port is arranged in the middle of the melting furnace (4) to communicate with the slag storage tank (10) through the slag flow channel (9); ) and slag channel (9) are respectively provided with valve 1 (12), valve 2 (27), refractory material sample area (13), sample thickness measuring device (14), velocimeter (15) and temperature measuring electric Couple (11); refractory material sample area (16), flexural pressure system (17), partition (26), flexural compression bar (25), flexural pressure The oil cylinder (23) and the external anti-bending system lifting cylinder (24); the left side of the molten steel storage tank (8) and the slag storage tank (10) are respectively provided with a steel tapping hole (18), a slag tapping hole (19) and a valve 3 (28), the right side is provided with an interconnected ventilation hole (20), and the ventilation hole (20) communicates with the ventilation port (22) and the external air bag.

High-purity, high-strength graphite materials are used for the parts in contact with the high-temperature liquid substance inside the channel part (5) and the storage tank part (6). when using it:

Load the samples into the specified positions respectively, and adjust the sample thickness measuring device, velocimeter, and flexural pressure system to reach the standard state. Start the program-controlled system after connecting the shielding gas pipeline from the steel tap (18) and the slag tap (19). Open the respective valves 3 (28), when the protective gas enters the main engine (3), and the air bag and channel inner cavity are filled to a specified state (the air bag will be automatically discharged and compressed to a specified position), the valves 3 (28) are closed successively.

The main machine (3) takes the support point (4) as the axis, the left end rises and turns 90° to the upper right, stops for a specified time (charging), and then reverses 90° to return to the original position, and the melting furnace starts heating and smelting. When the molten steel reaches the specified temperature, the valve 1 (12) and the valve 2 (27) in the steel flow channel are opened, the main engine (3) lifts the oil cylinder (2) to adjust the angle of the main engine (3) according to the specified flow rate, and the molten steel passes through the steel flow channel (7) Erosion and erosion tests are carried out on the refractory samples during the process of entering the molten steel storage tank (8). When the specified flow rate is reached, valve 1 (12) and valve 2 (27) in the steel flow channel are closed, and valve 1 (12) and valve 2 (27) in the flow slag channel are opened to carry out erosion and erosion tests on the refractory material samples with molten slag. When the specified slag flow rate is reached, valve 1 (12) and valve 2 (27) are closed. The lifting cylinder (2) of the main engine will adjust the angle of the main engine in the opposite direction, and after the erosion and erosion test of the refractory material sample (that is, an erosion and erosion test is completed), the sample thickness measuring device is set to measure the sample. Record. (The number of erosion and erosion tests can be added to the program according to the requirements.) After the erosion and erosion test is completed, when the temperature of the molten steel in the melting furnace reaches the specified requirements, a certain amount of molten steel is filled into the molten steel storage tank, and the temperature is kept for a certain period of time according to the required temperature range. The anti-bending system The flexural pressure was measured and recorded for three refractory samples respectively.

The main engine takes the support point as the axis, and the right end rises and turns 90° to the upper left. Valve 3 (28) is opened to tap molten steel, closes behind the steel slag. The main engine turns back 90° to return to the original position, and the computer typed out the test records and results.

Claims (2)

1. A high-temperature performance simulator for refractory materials, which includes: a main engine supported by a machine base and four main engine lifting cylinders through support points, characterized in that: the right end of the main engine is equipped with a melting furnace; the lower part of the melting furnace is equipped with a steel flow port It is connected to the molten steel storage tank through the steel flow channel; a slag outlet is set in the middle of the melting furnace to communicate with the slag storage tank through the slag flow channel; valve 1, valve 2, and refractory material sample area are respectively set in the steel flow channel and the slag flow channel , Sample thickness measuring device, velocity measuring device and thermocouple; set refractory material sample area on the upper part of the inner cavity of the molten steel storage tank, anti-bending pressure system, partitions, anti-bending pressure rods, anti-bending pressure cylinders and external anti-bending pressure cylinders. The lifting cylinder of the folding system; the left side of the molten steel storage tank and the slag storage tank are each equipped with a steel tap, a slag outlet and a valve 3, and a vent hole connected to each other is set on the right side, and the vent hole is connected to the vent port and the external air bag. 2. The high-temperature performance simulator of refractory materials as claimed in claim 1, characterized in that: the material of the parts in contact with the high-temperature liquid substance inside the channel part and the storage tank part is made of high-purity and high-strength graphite material.

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