Dry acetylene production device

Abstract

The utility model provides a dry-method acetylene production device which comprises an acetylene generator, the upper end of the acetylene generator is communicated with a calcium carbide bin through a material conveying device to supply limestone powder, a water mist spray head is arranged in the acetylene generator, the upper end of the acetylene generator is communicated with an acetylene discharge pipe, and the water mist spray head is communicated with a water mist generation device through a water mist pipe. A plurality of gas distribution pipes are fixed at the lower end in the acetylene generator, can vertically and upwards spray gas for decelerating falling calcium carbide powder, and are communicated with an acetylene tank through a pressure gas inlet pipe. According to the dry acetylene production device, the falling speed of calcium carbide powder in the acetylene generator can be reduced through the acetylene gas sprayed upwards, and meanwhile, the falling calcium carbide powder can be scattered through the acetylene gas sprayed upwards. Calcium carbide powder is decelerated and dispersed in the middle of the acetylene generator, so that water mist sprayed by the water mist spray head can fully react with the calcium carbide powder.

Description

Technical Field

[0001] The present application relates to dry acetylene production technology, and in particular to a dry acetylene production device. Background Art

[0002] Acetylene production equipment is a device that can make calcium carbide and water react chemically to produce acetylene gas. The dry acetylene process is a method of using slightly more than the theoretical amount of water to spray on calcium carbide powder in a mist state to produce acetylene. The production process uses less water and the water content of calcium carbide slag is low.

[0003] In the existing dry acetylene production device, in order to allow calcium carbide to fully contact with water mist, calcium carbide powder is continuously fed into the generator in small quantities, and water mist is sprayed into the generator during the falling process of the calcium carbide powder to allow the two to react.

[0004] However, in the existing acetylene production device, the falling speed of calcium carbide powder is fast, and the short contact time makes it difficult to fully react. In addition, calcium carbide powder is difficult to disperse in the generator. When falling, most of it still sticks to each other, and there is no gap for water mist to enter, so it cannot be evenly and fully contacted. Utility Model Content

[0005] The present application provides a dry acetylene production device, which is used to solve the problem that the calcium carbide powder in the existing acetylene generation device falls quickly and does not disperse, resulting in a short contact reaction time and insufficient reaction.

[0006] The present application provides a dry acetylene production device, including an acetylene generator, wherein the upper end of the acetylene generator is connected to a carbide silo through a feeding device to supply carbide powder, a water mist nozzle is provided inside the acetylene generator, the upper end of the water mist nozzle is connected to an acetylene discharge pipe, the water mist nozzle is connected to the water mist generating device through a water mist pipe, a plurality of gas distribution pipes are fixed at the lower end of the acetylene generator, the gas distribution pipes can vertically spray gas upward to decelerate the falling carbide powder, and the gas distribution pipes are connected to an acetylene tank through a pressure air inlet pipe.

[0007] Optionally, the water mist pipe on the water mist generating device is connected to the pressure air inlet pipe, and can be mixed with the gas to spray the water mist vertically upward through the air distribution pipe.

[0008] Optionally, a conical cover with a conical surface facing upward is fixed at the lower end of the acetylene generator, and the gas distribution pipe passes vertically upward through the conical surface of the conical cover for jetting.

[0009] Optionally, the air distribution pipe extends upward through the conical cover to have a 2cm-10cm pipe opening.

[0010] Optionally, the acetylene exhaust pipe is connected to the acetylene tank through a reflux pipe, and acetylene gas can flow into the acetylene tank in a unidirectional manner for replenishment.

[0011] Optionally, the feeding device is a screw conveyor, and the discharge end of the feeding device is connected to the upper end of the acetylene generator through a discharger.

[0012] Compared with the prior art, the dry acetylene production device provided in this application has the following beneficial effects:

[0013] The upwardly sprayed acetylene gas can slow down the falling speed of the calcium carbide powder in the acetylene generator, and at the same time, the upwardly sprayed acetylene gas can also break up the falling calcium carbide powder. The calcium carbide powder is slowed down and dispersed in the middle of the acetylene generator, which is conducive to the full reaction between the water mist sprayed by the water mist nozzle and the calcium carbide powder. The acetylene gas generated by the reaction mixes with the acetylene gas sprayed from the gas distribution pipe and rises, and is discharged into the next process through the acetylene discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of the structure of a dry acetylene production device provided in one embodiment of the present application;

[0016] Figure 2 A dry acetylene production device provided in one embodiment of the present application Figure 1 A partial cross-sectional view of

[0017] Figure 3 A schematic diagram of the connection between a water mist pipe and a pressure air inlet pipe of a dry acetylene production device provided in one embodiment of the present application;

[0018] Figure 4 A cross-sectional view of a conical cover of a dry acetylene production device provided in one embodiment of the present application;

[0019] Figure 5 A top view of the conical hood of a dry acetylene production device provided in one embodiment of the present application.

[0020] Description of reference numerals:

[0021] Acetylene generator 1; calcium carbide silo 2; feeding device 3; water mist generating device 4; water mist pipe 5; water mist nozzle 6; acetylene exhaust pipe 7; acetylene tank 8; pressure air inlet pipe 9; air distribution pipe 10; conical cover 11; reflux pipe 12; discharger 13. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0023] like Figure 1 , Figure 2 As shown, an embodiment of the present application provides a dry acetylene production device, including an acetylene generator 1, the upper end of the acetylene generator 1 is connected to the calcium carbide silo 2 through a feeding device 3 to supply calcium carbide powder, a water mist nozzle 6 is provided in the acetylene generator 1, the upper end of which is connected to the acetylene discharge pipe 7, the water mist nozzle 6 is connected to the water mist generating device 4 through a water mist pipe 5, a plurality of gas distribution pipes 10 are fixed at the lower end of the acetylene generator 1, the gas distribution pipes 10 can vertically spray gas upward to slow down the falling calcium carbide powder, and the gas distribution pipes 10 are connected to the acetylene tank 8 through a pressure air inlet pipe 9.

[0024] When in use, the calcium carbide powder enters the acetylene generator 1 through the calcium carbide silo 2 through the feeding device 3, and the acetylene gas in the acetylene tank 8 enters the acetylene generator 1 through the pressure air inlet pipe 9. The calcium carbide powder enters from the upper end of the acetylene generator 1 and falls vertically. The acetylene gas entering from the pressure air inlet pipe 9 is sprayed from bottom to top in the acetylene generator 1 through the air distribution pipe 10. The calcium carbide powder falling from top to bottom is dispersed and lifted up by the acetylene gas sprayed upward in the middle of the acetylene generator 1. The acetylene gas sprayed upward can effectively slow down the falling speed of the calcium carbide powder, so that it can fully react with the water mist sprayed by the water mist nozzle 6 in the middle of the acetylene generator 1. The acetylene gas generated after the reaction and the acetylene gas sprayed upward from the air distribution pipe 10 are discharged to the next process through the acetylene discharge pipe 7, and waste materials such as calcium carbide slag and waste water flow downward to the bottom of the acetylene generator 1 and are discharged regularly.

[0025] In this embodiment, the acetylene gas sprayed upward can slow down the falling speed of the calcium carbide powder in the acetylene generator 1, and at the same time, the acetylene gas sprayed upward can also break up the falling calcium carbide powder. The calcium carbide powder is slowed down and dispersed in the middle of the acetylene generator 1, which is conducive to the full reaction of the water mist sprayed by the water mist nozzle 6 and the calcium carbide powder. The acetylene gas generated by the reaction is mixed with the acetylene gas sprayed from the gas distribution pipe 10 and rises, and is discharged into the next process through the acetylene discharge pipe 7.

[0026] like Figure 3 As shown, in a possible implementation, the water mist pipe 5 on the water mist generating device 4 is connected to the pressure air inlet pipe 9, and can be mixed with the gas to spray the water mist vertically upward through the air distribution pipe 10.

[0027] The water mist produced by the water mist generating device 4 enters the pressure air inlet pipe 9 through the water mist pipe 5, then enters the acetylene generator 1 along the acetylene gas flow in the pressure air inlet pipe 9 in one direction, and is ejected from the gas distribution pipe 10. The water mist ejected through the gas distribution pipe 10 can be fully mixed and dispersed with the acetylene gas that supports the calcium carbide powder, and can more accurately reach the reaction position where the calcium carbide powder is decelerated.

[0028] like Figure 4 , Figure 5 As shown, in a possible implementation, a conical cover 11 with a conical surface facing upward is fixed at the lower end of the acetylene generator 1, and the gas distribution pipe 10 vertically passes through the conical surface of the conical cover 11 for jetting.

[0029] The conical cover 11 can guide and separate the falling carbide slag and waste, which not only reduces the accumulation of carbide slag and waste in the gas distribution pipe 10, but also stores the fallen carbide slag and waste between the conical cover 11 and the bottom wall of the acetylene generator 1 to avoid mutual influence with the airflow.

[0030] like Figure 4 , Figure 5 As shown, in a possible implementation, the air distribution pipe 10 passes through the conical cover 11 and extends upward to a 2 cm-10 cm pipe opening.

[0031] The pipe opening of the air distribution pipe 10 is higher than the conical surface of the conical cover 11, which can prevent the pipe opening from being buried by the accumulated carbide slag and ensure smooth air injection.

[0032] like Figure 3 As shown, in a possible implementation, the acetylene exhaust pipe 7 is connected to the acetylene tank 8 through the reflux pipe 12, and acetylene gas can flow into the acetylene tank 8 in a unidirectional manner for replenishment.

[0033] A portion of the produced acetylene gas is discharged through the acetylene exhaust pipe 7 and then flows back into the acetylene tank 8 from the reflux pipe 12 to replenish the acetylene gas in the acetylene tank 8 .

[0034] In a possible implementation, the feeding device 3 is a screw conveyor, and the discharge end of the feeding device 3 is connected to the upper end of the acetylene generator 1 through a discharger 13 .

[0035] The discharger 13 is installed at the upper end of the acetylene generator 1, which can more accurately control the speed of material discharge, so that the calcium carbide powder and the water mist can fully react. In addition, the discharger 13 can also effectively block the acetylene gas.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dry acetylene production device, comprising an acetylene generator (1), wherein the upper end of the acetylene generator (1) is connected to a carbide silo (2) through a feeding device (3) to supply carbide powder, wherein a water mist nozzle (6) is provided in the acetylene generator (1), and the upper end is connected to an acetylene discharge pipe (7), wherein the water mist nozzle (6) is connected to a water mist generating device (4) through a water mist pipe (5), and wherein: A plurality of gas distribution pipes (10) are fixed at the lower end of the acetylene generator (1). The gas distribution pipes (10) are capable of vertically spraying gas upward to decelerate the falling calcium carbide powder. The gas distribution pipes (10) are connected to the acetylene tank (8) via a pressure air inlet pipe (9).

2. The dry acetylene production device according to claim 1, characterized in that: The water mist pipe (5) on the water mist generating device (4) is connected to the pressure air inlet pipe (9) and can be mixed with gas to spray water mist vertically upward through the air distribution pipe (10).

3. The dry acetylene production device according to claim 1, characterized in that: A conical cover (11) with a conical surface facing upward is fixed at the lower end of the acetylene generator (1), and the gas distribution pipe (10) vertically passes through the conical surface of the conical cover (11) for jetting.

4. The dry acetylene production device according to claim 3, characterized in that: The air distribution pipe (10) passes through the conical cover (11) and extends upward to form a pipe opening of 2 cm to 10 cm.

5. The dry acetylene production device according to claim 1, characterized in that: The acetylene discharge pipe (7) is connected to the acetylene tank (8) via a reflux pipe (12), and acetylene gas can flow into the acetylene tank (8) in a unidirectional manner for replenishment.

6. The dry acetylene production device according to any one of claims 1 to 5, characterized in that: The feeding device (3) is a screw conveyor, and the discharge end of the feeding device (3) is connected to the upper end of the acetylene generator (1) through a discharger (13).

Images