CN216032744U

CN216032744U - Blast furnace carbon ramming mass compressive strength sample forming die device

Info

Publication number: CN216032744U
Application number: CN202120994082.1U
Authority: CN
Inventors: 武天文; 祁维德; 张敏敏
Original assignee: Fangda Carbon New Material Co ltd
Current assignee: Fangda Carbon New Material Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-03-15
Anticipated expiration: 2031-05-11

Abstract

The utility model discloses a blast furnace carbon ramming material compressive strength sample forming die device which comprises a fixed die, wherein an assembled forming die is installed in the fixed die in a matched mode, and an extrusion head is installed in the assembled forming die in a matched mode. The utility model solves the problems that the sample is not easy to prepare and the demoulding is difficult to demould in the prior mould, and cracks are easy to appear on the surface of a demoulded sample or the demoulded sample can not be prepared into the sample due to the fluctuation of the content of the binder.

Description

Blast furnace carbon ramming mass compressive strength sample forming die device

Technical Field

The utility model relates to the technical field of carbon product detection equipment, in particular to a forming die device for a compressive strength sample of a blast furnace carbon ramming mass.

Background

The carbon ramming mass is used as a carbon filling material and is widely applied to filling gaps between a furnace bottom and carbon bricks and between a cooling wall and the carbon bricks during the building of an iron-making blast furnace. The production raw materials are unshaped materials formed by fully mixing a binder, graphite particles and powder, and are divided into resin combined ramming mass and tar pitch combined ramming mass according to the difference of the binder. The compression strength is measured during the physical and chemical index inspection, the stress direction during construction and the heat transfer direction during working are simulated, and the vertical stress direction of the sample is prepared. The compressive strength measurement must first be carried out on test specimens of the dimensions required by the product standard, generally cylinders of phi 50mm x 50 mm.

The existing ramming material sample preparation forming equipment comprises a section of circular tube, a bottom die and an extrusion head, and a pressure device is used for pressing a sample into a demoulding column from the top to extrude the sample during demoulding, so that the sample preparation mode is not easy to prepare the sample and is difficult to demould, and due to fluctuation of the content of a binder, when the content of the binder is high, cracks are easy to appear on the surface of a demoulded sample; when the content of the binder is low, the demolding sample cannot be prepared into a test sample, and the preparation of the test sample directly influences the compression strength detection result.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems, the utility model provides a blast furnace carbon ramming mass compressive strength sample forming die device which can avoid the problems that the sample is not easy to prepare and difficult to demould in the conventional die demoulding process, and cracks are easy to appear on the surface of a demoulded sample or the demoulded sample cannot be prepared into the sample due to the fluctuation of the content of a binder.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the blast furnace carbon ramming material compression strength sample forming die device comprises a fixed die, wherein a split mounting type forming die is mounted in the fixed die in a matched mode, and an extrusion head is mounted in the split mounting type forming die in a matched mode.

The assembled forming die is at least two combined bodies capable of being combined into a die.

The utility model has the beneficial effects that: the test sample pressed by the utility model has good parallelism, complete appearance edge and accurate and real volume of the test sample. The sample preparation is in a vertical stress direction, so that the stress direction of the blast furnace ramming mass during construction and the heat transfer direction during working are met, the forming die is designed by a bisection method, the demoulding of the sample is facilitated, and the device is provided with a base.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a state diagram of the use of the present invention.

The method comprises the following steps of 1-fixing a mould, 2-forming a mould, 3-extruding a head, 4-testing a sample and 5-universal testing machine.

Detailed Description

As shown in figure 1, the blast furnace carbon ramming material compression strength sample forming die device comprises a fixed die 1, wherein a split mounting type forming die is installed inside the fixed die 1 in a matched mode, an extrusion head 3 is installed inside the split mounting type forming die in a matched mode, and the split mounting type forming die is at least two combined bodies capable of being combined into a die.

As shown in fig. 2, the assembly type forming die is composed of two forming dies 2 with inner walls of a bottomed semi-cylinder structure, the forming dies 2 are 100mm high, the inner sides of the forming dies are cylindrical cavity structures after being tightly abutted, the outer sides of the forming dies are cones, the diameter of each cylinder is 50mm, the outer sides of the assembly type forming dies are tightly matched with the inner walls of the fixed dies 1 and connected into a whole, and the diameter of the extrusion head 3 is smaller than the inner diameter of the assembly type forming die by 1mm and is tightly matched with the inner walls of the assembly type forming dies.

When the device is used, firstly, 180g of ramming mass sample is manually weighed, the weighed ramming mass is filled into the assembled forming die, the filled ramming mass is manually compacted, then, the pressure is maintained for 30s on a 30t universal testing machine 5 by using the pressure of 98kN, and the pressing of the sample 4 is completed. When demoulding, the fixed mould 1 is turned over, the assembled forming mould is pressed out of the fixed mould 1 by using a 30t universal testing machine 5, then the assembled forming mould is separated, the test sample 4 is taken down, and the preparation of the test sample is completed.

The above are merely examples of the present invention, and therefore do not limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations are within the scope of the present invention.

Claims

1. The utility model provides a plain ramming mass compressive strength sample moulded die device of blast furnace carbon which characterized in that: the device comprises a fixed die (1), wherein an assembled forming die is installed in the fixed die (1) in an adaptive mode, and an extrusion head (3) is installed in the assembled forming die in an adaptive mode; the assembled forming die is at least two combined bodies which can be combined into a die; the inner side of the assembled forming die is of a cylindrical cavity structure, the outer side of the assembled forming die is of a cone, and the outer side of the assembled forming die is tightly matched with the inner wall of the fixed die (1).