One-time ash cone forming tool for coal ash fusibility test

Abstract

The utility model discloses an ash cone one-time cone forming tool for coal ash fusibility test, which belongs to the technical field of sample analysis equipment and comprises a cone guide die and a compaction device, the cone guide die comprises two metal blocks which are detachably connected, a cone guide groove is formed between the two metal blocks, the compaction device comprises a cone cutter matched with the cone guide groove, and the cone cutter is matched with the cone guide groove. And the cone cutter is used for compacting the ash sample in the guide cone groove. Through the arrangement of the cone guide groove and the cone cutter, an ash sample can be directly put into the cone guide groove to be pressed, manual cone making is not needed, and the cone making time and the sample analysis time are greatly shortened; in addition, the technical problems that the time for manual cone making is long, moisture of a mixed ash sample can be volatilized in the air in the cone making process, the humidity of the ash sample is changed, the cohesiveness of the ash cone is poor, and the ash cone is broken in the demolding process are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample analysis equipment, and particularly relates to a disposable cone-forming tool for testing the ash fusibility of coal ash Background Art

[0002] At present, the ash fusibility of coal is an important parameter basis for the stable operation of coal gasification devices, and the ash melting point will determine the coking temperature of coal slag. In the process of analyzing the ash fusibility of coal samples, it is necessary to first burn the coal samples into ash samples, then make cones, and then analyze the ash fusibility of the coal samples. The commonly used method at present is to mix the coal ash samples with a certain proportion of dextrin, and then use an ash knife to compact the mixed coal ash in an ash cone mold to make a cone sample for ash fusibility analysis with an instrument. For coal chemical plants, there are the following disadvantages in this process: First, manual cone making can only fill the ash cone mold flat with a little sample, and uneven force during filling will cause the ash cone to break easily when entering the instrument for analysis, thus affecting the analysis time and results. Second, since the ash fusibility of coal will directly affect the coking degree of coal slag in the gasifier, and the analysis time of the ash fusibility instrument is relatively long, shortening the sample analysis time can timely feedback the quality of coal samples to the workshop to guide production. Third, in traditional domestic operations, the ash cone is usually triangular, and its pressing process is to shovel and squeeze it manually with a small blade, which is not only time-consuming and laborious, but also the tip and edges of the prepared ash cone are easily damaged. Fourth, the existing ash cone mold is made in the form of a combination of left and right molds. By respectively opening opposite inner cavities on the left and right molds, the prepared plastic coal ash is placed in the inner cavity of the mold, extruded into shape, and then the ash cone in the mold is carefully pushed onto a porcelain plate with a small pointed knife, air-dried or dried at 60°C, and then placed on an ash cone support plate. This kind of mold can only make one ash cone at a time, and the ash cone is easily damaged and the efficiency is low during demolding. The process of moving the ash cone after air-drying is also likely to cause damage to the ash cone, directly affecting the accuracy and efficiency of the test results. Content of the Utility Model

[0003] The purpose of the utility model is to provide a disposable cone-forming tool for testing the ash fusibility of coal ash, which solves the technical problem that the ash cone is easily broken during manual cone making, thus affecting the analysis accuracy.

[0004] The technical solution adopted by the utility model is that the disposable cone-forming tool for testing the ash fusibility of coal ash includes a guide cone mold and a compaction device. The guide cone mold includes two detachably connected metal blocks, and a guide cone groove is formed between the two metal blocks. The compaction device includes a cone knife that cooperates with the guide cone groove, and the cone knife is used to compact the ash sample in the guide cone groove.

[0005] The characteristics of the utility model also lie in:

[0006] Conical surfaces are provided at the edges of two metal blocks close to each other. A steel plate is connected to the side close to the conical surface through a fastener, and a guide conical groove is formed between the steel plate and the conical surface; the two metal blocks are connected through a fastener.

[0007] Along the length direction of the guide conical groove, a limiting groove is fixedly connected to the bottom of the guide conical groove.

[0008] Limiting baffles are fixedly connected to the sides of the two metal blocks facing away from each other.

[0009] The compaction device further includes a manual press, and the conical knife is detachably installed on the manual press.

[0010] A spring is connected to the pressure rod of the manual press, and a stopper is also fixedly connected to the pressure rod of the manual press.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Through the arrangement of the guide conical groove and the conical knife, the present utility model can directly put the ash sample into the guide conical groove for pressing. The filling is uniform and the force is balanced, avoiding the situation that the ash cone is easily broken when entering the instrument for analysis. And there is no need for manual shoveling and squeezing with a small blade, which saves time and effort, and the prepared ash cone tip and edges are not easily damaged. Also, through the detachable setting of the metal block, the guide conical groove can be disassembled, avoiding the situation in the prior art that the ash cone in the mold is carefully pushed onto the porcelain plate with a small pointed knife, and the ash cone is easily damaged and the efficiency is low during demolding. The present utility model does not require manual cone making, greatly reducing the cone making time and sample analysis time; and solves the technical problems that the manual cone making takes a long time, the mixed ash sample will volatilize water in the air during the cone making process, changing the humidity of the ash sample, resulting in poor adhesiveness of the ash cone and breakage during demolding. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the disposable cone forming tool for coal ash fusibility test of the present utility model;

[0014] Figure 2 is a schematic connection structure diagram of the manual press and the conical knife in the disposable cone forming tool for coal ash fusibility test of the present utility model.

[0015] In the figure, 1. metal block, 2. limiting baffle, 3. steel plate, 4. inner hexagon bolt, 5. connecting bolt, 6. guide conical groove, 7. manual press, 8. conical knife, 9. spring, 10. stopper. Detailed Embodiments

[0016] The present utility model will be further explained below in conjunction with the drawings and specific embodiments.

[0017] Embodiment 1

[0018] AsFigure 1 and Figure 2 As shown in Figure 2 , the disposable cone-forming tool for testing the fusibility of coal ash disclosed by the present utility model includes a guiding cone mold and a compaction device. The guiding cone mold includes two detachably connected metal blocks 1, and a guiding cone groove 6 is formed between the two metal blocks 1. The compaction device includes a cone knife 8 that cooperates with the guiding cone groove 6, and the cone knife 8 is used to compact the ash sample in the guiding cone groove 6.

[0019] The present utility model uses a manual press 7, a cone knife 8 and a guiding cone groove 6 to make a device for pressing a coal ash cone at one time, which saves the time used for making cones in the analysis of the fusibility of coal samples and improves the sample analysis efficiency. During the experiment, the guiding cone mold and the guiding cone groove 6 are connected, and then the cone knife 8 is connected to the cone head of the manual press 7 so that the cone knife 8 is perpendicular downward. The guiding cone mold is vertically placed under the cone knife 8 of the manual press 7. After mixing dextrin and coal ash sample in proportion, it is added into the guiding cone groove 6. Press the pressure rod on the manual press 7 to compact the ash sample in the ash cone mold. Remove the ash cone mold, scrape the cone surface flat with an ash knife, and complete the ash cone sample preparation after demolding.

[0020] The present utility model replaces the manual making of ash cone samples. After replacement, a manual press 7, a made guiding cone groove 6 and a cone knife 8 are used. Since the newly made guiding cone groove 6 and cone knife 8 are processed according to the size of the guiding cone mold, they can be used in a matching way after installation. Only need to fix the cone knife 8 at the head of the manual press 7 with screws, which solves the problems of slow manual cone making and low cone forming rate, reduces the operation difficulty in the cone making process, improves the sample forming rate, and shortens the sample analysis time.

[0021] Embodiment 2

[0022] On the basis of Embodiment 1, conical surfaces are opened at the edges of the two metal blocks 1 close to each other, and a steel plate 3 is connected by fasteners on one side close to the conical surface. A guiding cone groove 6 is formed between the steel plate 3 and the conical surface; the two metal blocks 1 are connected by fasteners.

[0023] In this embodiment, the metal block 1 is made of stainless steel, which has low cost, is convenient to process, and can be used all the time after installation. The cone knife 8 and the guiding cone groove 6 can be processed according to the actual size of the guiding cone mold. The steel plate 3 and the two metal blocks 1 are connected by bolts and disassembled from the front with a movable wrench. The two metal blocks 1 are connected by internal hexagonal bolts and disassembled from the side with an internal hexagonal wrench.

[0024] In this embodiment, the conical surface is arranged at the edges of the two metal blocks 1 close to each other, which is convenient for processing. At this time, in order to close the opening formed by the conical surface, a steel plate 3 is provided as one surface of the guide conical groove 6, and the two conical surfaces are the other surfaces, thereby forming a circumferentially closed guide conical groove 6 structure. Different from Embodiment 1, in Embodiment 1, the guide conical groove 6 is formed between the two metal blocks 1, and it can be in other structural forms. For example, a cut is designed on one side surface of the two metal blocks 1 close to each other, so that the conical surface is formed in the middle of the surface. At this time, the two metal blocks 1 can form a circumferentially closed guide conical groove 6 without setting a steel plate.

[0025] Further, along the length direction of the guide conical groove 6, a limiting groove is fixedly connected to the bottom of the guide conical groove 6. Through the setting of the limiting groove, the ash sample can be compacted under the action of the extrusion of the conical knife 8.

[0026] Further, limiting baffles 2 are fixedly connected to the opposite sides of the two metal blocks 1. The limiting baffles 2 are used to hold the guide conical die, so that the guide conical groove 6 is directly opposite to the conical knife 8.

[0027] Embodiment 3

[0028] On the basis of Embodiment 1, the compaction device further includes a manual press 7, and the conical knife 8 is detachably installed on the manual press 7. Further, a spring 9 is connected to the pressure rod of the manual press 7, and a stopper 10 is also fixedly connected to the pressure rod of the manual press 7.

[0029] Manually press down the lever of the manual press 7. At this time, the spring 9 is in a stretched state. When the conical knife 8 on the manual press 7 enters the guide conical groove 6 and completes the compaction work, the operator releases the lever of the manual press 7. At this time, the spring 9 drives the lever to move upward until the lever is caught by the stopper 10 and stops.

[0030] The working process of the present utility model is as follows:

[0031] When in use, first mix the ash sample with dextrin in a certain proportion, place the guide conical die vertically directly below the conical knife 8 fixed by the manual press 7, adjust the positions of the guide conical groove 6 and the guide conical die, so that the conical knife 8 can be directly inserted into the guide conical groove 6 after it drops. Put the mixed ash sample into the guide conical groove 6 with an ash knife, press down the lever of the manual press 7 forcefully, then release the lever of the manual press 7, level the ash in the ash conical die with an ash knife, perform the cone removal operation, and put the ash cone into the cone tray and wait for instrument analysis.

Claims

1. A disposable cone-forming tool for testing the fusibility of coal ash, characterized in that, It includes a tapered die and a compaction device. The tapered die includes two detachable metal blocks (1), and a tapered groove (6) is formed between the two metal blocks (1). The compaction device includes a tapered knife (8) that cooperates with the tapered groove (6), and the tapered knife (8) is used to compact the ash sample in the tapered groove (6).

2. The disposable cone-forming tool for testing the fusibility of coal ash according to claim 1, characterized in that, Conical surfaces are provided at the edges of the two metal blocks (1) close to each other, and a steel plate (3) is connected by a fastener on one side close to the conical surface. A tapered groove (6) is formed between the steel plate (3) and the conical surface; the two metal blocks (1) are connected by fasteners.

3. The one-time cone-forming tool for testing the fusibility of coal ash according to claim 2, characterized in that, Along the length direction of the tapered groove (6), a limiting groove is fixedly connected to the bottom of the tapered groove (6).

4. The one-time cone-forming tool for testing the fusibility of coal ash according to claim 1, characterized in that, Limiting baffles (2) are fixedly connected to one side of the two metal blocks (1) facing away from each other.

5. The one-time cone-forming tool for testing the fusibility of coal ash according to claim 1, characterized in that, The compaction device further includes a manual press (7), and the tapered knife (8) is detachably installed on the manual press (7).

6. The one-time cone forming tool for coal ash fusibility test according to claim 5, characterized in that A spring (9) is connected to the pressure rod of the manual press (7), and a stopper (10) is also fixedly connected to the pressure rod of the manual press (7).

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