An experimental device for dry quenching process

Abstract

The utility model discloses an experimental device of dry quenching process, including quenching chamber, experiment box, gas pipe and a plurality of nozzles, the experiment box set up in quenching chamber, the experiment box is the box body of top open, side wall and bottom closed, and the experiment box is filled with coke, the gas pipe with inert gas is connected, and the nozzle is fixed in the quenching chamber, and the nozzle's mouth part is toward the experiment box, and the gas pipe is communicated with inert gas. Effectively avoid the influence of water quenching process quenching on coke quality, avoid the problem of water vapor air pollution in water quenching, the dry quenching process of the utility model is consistent with the quenching process in industrial production, and the reliability of experimental result is improved.

Description

Technical Field

[0001] This utility model relates to the field of coke quenching experimental technology, and in particular to an experimental device for a dry coke quenching process. Background Technology

[0002] Experimental coke ovens are used to simulate the production conditions of the coking industry, conducting experimental research on coking mechanisms, coke physicochemical properties, and other related indicators. This is used to evaluate the coking performance of single coal types or blended coals, explore the laws governing coking performance, and guide the optimization of coking coal blending structures, stabilization of proportions, improvement of coke quality, and reduction of blending costs. Therefore, to ensure the accuracy of experimental results, it is required that the mass of materials within the experimental apparatus be minimized during the experimental process.

[0003] Existing experimental setups primarily employ water-based quenching, directly extinguishing and cooling incandescent coke at approximately 1000°C with water. This rapid cooling process causes numerous cracks in the coke and generates water vapor carrying particulate pollutants, resulting in environmental pollution. Furthermore, the water-based quenching process differs significantly from the dry quenching process used in industrial production, rendering simulation results of limited value. Other existing setups involve placing the coke in a sealed chamber for natural cooling, but this still cannot prevent the coke from burning due to contact with air, and the cooling time is also lengthy. Utility Model Content

[0004] The main purpose of this invention is to provide an experimental device for a dry quenching process, so as to solve the technical problems in the prior art where rapid cooling of coke in experimental devices easily causes cracks and the experimental process is inconsistent with the factory production process.

[0005] To achieve the above objectives, this utility model provides an experimental apparatus for a dry coke quenching process, comprising a quenching chamber, an experimental box, a gas pipe, and multiple nozzles. The experimental box is disposed within the quenching chamber and is an open-top, closed-side and bottom box filled with coke. The gas pipe is connected to the nozzles, which are fixed within the quenching chamber with their openings facing the experimental box. The gas pipe is connected to an inert gas.

[0006] Furthermore, it also includes a support frame fixed to the bottom of the quenching chamber, with the experimental box placed on top of the support frame so that the experimental box is located in the middle of the quenching chamber.

[0007] Furthermore, it also includes a nozzle connected between the air pipe and the nozzle, and the plurality of nozzles are distributed around the experimental chamber.

[0008] More preferably, the plurality of nozzles and the nozzle pipes are distributed above and below the experimental chamber, the nozzle pipe located above the experimental chamber is the first nozzle pipe, and the nozzle pipe located below the experimental chamber is the second nozzle pipe. The diameter of the first nozzle pipe is smaller than the diameter of the second nozzle pipe, and the gas flow rate of the first nozzle pipe per unit time is less than that of the second nozzle pipe per unit time.

[0009] More preferably, the plurality of nozzles are arranged in a row, with the distribution direction parallel to the longitudinal direction of the experimental chamber. Several holes are provided on the nozzle along the longitudinal direction of the experimental chamber. The connecting end of the nozzle is provided with a hollow ball head that extends through both ends of the nozzle. The ball head is rotatably disposed in the hole. The outer wall of the ball head is in close contact with the inner wall of the nozzle. The other end of the nozzle extends out of the hole.

[0010] More preferably, the nozzles located above the experimental chamber are arranged in two rows along the transverse direction of the experimental chamber, and the nozzles in different rows are connected by the spray pipe.

[0011] Preferably, the nozzle also includes an electric ball valve disposed within the nozzle to control the flow rate of the inert gas.

[0012] Preferably, the inert gas is nitrogen, and the experimental apparatus further includes a tail gas emission pipe, one end of which is connected to the interior of the quenching chamber, and the other end of which is connected to the outside.

[0013] More preferably, the exhaust pipe is further provided with a filter device for exhaust gas dust removal.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention injects inert gas into the quenching chamber through a gas pipe and nozzle. The inert gas fills the quenching chamber and expels the air inside, causing the flame to extinguish after the coke is suffocated. Then, the nozzle continuously sprays inert gas into the experimental chamber, and the temperature of the coke inside the chamber is continuously reduced through gas flow and heat exchange within the chamber. This effectively avoids the impact of rapid cooling on coke quality caused by water quenching and avoids the problem of water vapor air pollution in water quenching. The dry quenching process of this invention is consistent with the quenching process in industrial production, improving the reliability of experimental results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure in one embodiment of the present invention.

[0018] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0019] Explanation of icon numbers:

[0020] 1. Quenching chamber; 2. Support frame; 3. Experimental chamber; 4. Coke; 5. Exhaust gas emission pipe; 6. First nozzle; 7. Nozzle; 8. Second nozzle; 9. Controller; 10. Thermocouple. Detailed Implementation

[0021] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] Please see the appendix Figure 1This embodiment provides an experimental apparatus for a dry quenching process, including a quenching chamber 1, an experimental box 3, a support 2, a gas pipe (not shown in the figure), and multiple nozzles 7. The experimental box 3 is disposed inside the quenching chamber 1 and is an open-topped, closed-side and bottomed box filled with coke 4. The support 2 is fixed to the bottom of the quenching chamber 1, and the experimental box 3 is placed on top of the support 2 so that the experimental box 3 is located in the middle of the quenching chamber 1. The gas pipe is connected to the nozzles 7, and the nozzles 7 are fixed inside the quenching chamber 1 with their openings facing the experimental box 3. The gas pipe is connected to an inert gas, which is nitrogen.

[0026] In this embodiment, inert gas is injected into the quenching chamber 1 through a gas pipe and nozzle 7. The inert gas fills the quenching chamber 1 and expels the air inside, causing the flame to extinguish after the coke 4 is suffocated. Then, nozzle 7 continuously sprays inert gas into the experimental chamber 3. Through gas flow and heat exchange within the chamber, the temperature of the coke 4 inside the experimental chamber 3 is continuously reduced. This effectively avoids the impact of rapid cooling on the quality of the coke 4 caused by the water quenching process and avoids the problem of water vapor air pollution in the water quenching process. The dry quenching process of this utility model is consistent with the quenching process in industrial production, which improves the reliability of the experimental results.

[0027] In one embodiment, a nozzle is further included, connected between the gas pipe and the nozzle 7. The plurality of nozzles 7 and the nozzle are distributed above and below the experimental chamber 3. The nozzle located above the experimental chamber 3 is a first nozzle 6, and the nozzle located below the experimental chamber 3 is a second nozzle 8. The diameter of the first nozzle 6 is smaller than the diameter of the second nozzle 8, and the first nozzle 6 is connected to fewer nozzles 7 than the second nozzle 8. The nozzles 7 connected to the first nozzle 6 spray inert gas downwards from the top of the experimental chamber 3. The inert gas flow directly enters the interior of the experimental chamber 3 and contacts the coke 4 for heat exchange, thus cooling the coke 4. The nozzles 7 connected to the second nozzle 8 spray inert gas upwards from the bottom of the experimental chamber 3. The inert gas flow contacts the surface of the experimental chamber 3 for heat exchange, thus cooling the coke 4. In this embodiment, the gas flow rate per unit time of the first nozzle 6 is less than that of the second nozzle 8, ensuring a uniform cooling rate of the coke 4 inside the experimental chamber 3.

[0028] In this embodiment, as a further preferred embodiment, the plurality of nozzles 7 are arranged in rows, with the distribution direction parallel to the longitudinal direction of the experimental chamber 3. The nozzles 7 located above the experimental chamber 3 are arranged in two rows along the transverse direction of the experimental chamber 3, and the nozzles 7 in different rows are connected by the spray pipe. The spray pipe has several holes arranged along the longitudinal direction of the experimental chamber 3. The connecting end of the nozzle 7 is provided with a hollow ball head that extends through both ends of the spray pipe. The ball head is rotatably disposed in the hole, and the outer wall of the ball head is in close contact with the inner wall of the spray pipe. The other end of the nozzle 7 extends out of the hole. Through the cooperation of the ball head and the spray pipe, the nozzle can rotate within a small range at various angles within the hole of the spray pipe, thereby spraying inert gas flow from multiple angles and improving the cooling effect.

[0029] Preferably, this embodiment also includes an electric ball valve, which is disposed inside the nozzle to control the flow rate of the inert gas. The electric ball valve facilitates control of the gas flow rate within the nozzle, allowing for adjustment of the cooling rate by changing the gas flow rate during the experiment.

[0030] In this embodiment, the experimental apparatus further includes a tail gas emission pipe 5. One end of the tail gas emission pipe 5 is connected to the interior of the quenching chamber 1, and the other end of the tail gas emission pipe 5 is equipped with a filter device for tail gas dust removal and is connected to the outside. In this embodiment, the filter device is preferably a cloth bag.

[0031] Working principle: A forklift is used to place the hot experimental chamber 3 containing coke 4 into the quenching chamber 1, causing the temperature inside the quenching chamber 1 to rise. When the temperature inside the quenching chamber 1 exceeds 100°C, the electric ball valve is opened to introduce nitrogen gas into the quenching chamber 1. The nitrogen gas is then sprayed through the first nozzle 6 and the second nozzle 8 to extinguish the flame of the coke 4 and cool the coke 4. When the temperature inside the quenching chamber 1 drops below 100°C, the electric ball valve is closed to cut off the nitrogen gas supply, thus ending the quenching process.

[0032] In this embodiment, the quenching time can also be adjusted by regulating the nitrogen pressure and flow rate; the exhaust gas generated during quenching is discharged into the atmosphere after passing through the exhaust pipe 5 and being filtered by a bag filter, with no pollutants being directly emitted during the process.

[0033] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An experimental apparatus for dry quenching process, characterized by, The device includes a quenching chamber, an experimental box, a gas pipe, and multiple nozzles. The experimental box is located inside the quenching chamber and is an open-top, closed-side and bottom box filled with coke. The gas pipe is connected to the nozzles, which are fixed inside the quenching chamber with their openings facing the experimental box. The gas pipe is connected to an inert gas.

2. The experimental installation of dry quenching process according to claim 1, characterized in that, It also includes a support frame, which is fixed to the bottom of the quenching chamber, and the experimental box is placed on top of the support frame so that the experimental box is in the middle of the quenching chamber.

3. The experimental apparatus for the dry quenching process according to claim 1, characterized in that, It also includes a nozzle connected between the air pipe and the nozzle, and the plurality of nozzles are distributed around the experimental chamber.

4. The experimental apparatus for the dry quenching process according to claim 3, characterized in that, The plurality of nozzles and the nozzle pipes are distributed above and below the experimental chamber. The nozzle pipe located above the experimental chamber is the first nozzle pipe, and the nozzle pipe located below the experimental chamber is the second nozzle pipe. The diameter of the first nozzle pipe is smaller than that of the second nozzle pipe, and the gas flow rate of the first nozzle pipe per unit time is less than that of the second nozzle pipe per unit time.

5. The experimental apparatus for the dry quenching process according to claim 4, characterized in that, The multiple nozzles are arranged in a row, with the distribution direction parallel to the longitudinal direction of the experimental chamber. Several holes are provided on the nozzle along the longitudinal direction of the experimental chamber. The connecting end of the nozzle is provided with a hollow ball head that points to both ends of the nozzle. The ball head is rotatably disposed in the hole. The outer wall of the ball head is in close contact with the inner wall of the nozzle. The other end of the nozzle extends out of the hole.

6. The experimental apparatus for the dry quenching process according to claim 5, characterized in that, The nozzles located above the experimental chamber are arranged in two rows along the transverse direction of the experimental chamber, and the nozzles in different rows are connected by the spray pipe.

7. The experimental apparatus for the dry quenching process according to claim 3, characterized in that, It also includes an electric ball valve, which is disposed inside the nozzle to control the flow rate of the inert gas.

8. The experimental apparatus for the dry quenching process according to claim 1, characterized in that, The inert gas is nitrogen. The experimental apparatus also includes a tail gas emission pipe, one end of which is connected to the interior of the quenching chamber, and the other end of which is connected to the outside.

9. The experimental apparatus for the dry quenching process according to claim 8, characterized in that, The exhaust pipe is also equipped with a filter device for exhaust gas dust removal.

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