Swirl jet burner of hot blast stove

Abstract

The utility model relates to the field of combustors, in particular to a swirl jet combustor of a hot blast stove, which comprises a stove body and a regulation and control table, a gas port is mounted at the left end of the outer side wall of the stove body, an air port is mounted at the right end of the outer side wall of the stove body, a plurality of first spring rods are mounted at the top in the stove body along the circumferential direction, and the regulation and control table is mounted at the bottoms of the first spring rods. The through hole is formed in the upper end face of the furnace body, the regulation and control table is installed at the inner side end of the through hole in a sliding fit mode, the upper shell is installed on the upper end face of the furnace body, and the regulation and control table and the first spring rod structure are adopted, so that the internal space of the furnace body can be regulated, the internal air pressure of the furnace body is kept stable, and the stability of the device during working is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of combustor, concretely relates to hot blast stove cyclone injection combustor. BACKGROUND

[0002] The combustor is a commonly used equipment of the top combustion hot blast stove, and the existing combustor has various types, but problems exist in the structure, and thus some problems still exist in use, especially the top combustion hot blast stove with a precombustion chamber which is widely used at present.

[0003] A top combustion hot blast stove cyclone injection combustor with double air inlets is disclosed in a Chinese patent (authorized publication number CN209495330U), which can solve the problem that the airflow in high-speed motion cannot well infiltrate the air entering in the radial direction, which leads to uneven mixing of the coal gas and the air in the initial stage, insufficient combustion, a large air coefficient, and a high CO content in the waste gas, which cannot fully utilize the heat energy and increases the pollution probability to the environment, which is contrary to the current energy saving and emission reduction requirements, and other problems.

[0004] The existing combustor produces a large amount of waste gas in the combustion process, which leads to an increase in the gas pressure in the furnace, greatly reduces the safety performance during work, and lacks an effective gas pressure detection mechanism due to the high temperature in the furnace UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a hot blast stove cyclone injection combustor, which comprises a furnace body and a control console, a gas inlet is installed at the left end of the outer side wall of the furnace body, an air inlet is installed at the right end of the outer side wall of the furnace body, a plurality of first spring rods are installed on the top of the furnace body along the circumferential direction thereof, the control console is installed at the bottom of the first spring rods, a through hole is formed in the upper end face of the furnace body, the control console is installed at the inner side end of the through hole in a sliding fit manner, and an upper shell is installed on the upper end face of the furnace body.

[0006] Preferably, a placing groove is formed in the bottom of the control console, an adjusting motor is installed at the top of the placing groove, a main shaft is installed at the output end of the adjusting motor, a sleeve is installed at the outer side wall of the main shaft in a screwing manner, and a plurality of stirring rods are installed on the outer side wall of the sleeve along the circumferential direction thereof.

[0007] Preferably, a top cover is rotatably installed on the upper end face of the upper shell in a threaded manner, a pressure sensor is installed at the bottom of the top cover, an alarm is installed on the upper end face of the top cover, a control panel is arranged in the upper shell, and the control panel is electrically connected with the pressure sensor and the alarm.

[0008] Preferably, second spring rods are arranged in the upper shell in a left-right symmetrical manner, an inclined plate is installed at the inner side end of the second spring rods, and the second spring rods are arranged in an inclined manner.

[0009] The utility model has the following technical effects and advantages:

[0010] 1、The utility model discloses a regulating platform and a first spring rod structure are adopted to adjust the internal space of the furnace body, keep the internal air pressure of the furnace body stable and ensure the stability of the device during operation.

[0011] 2、The utility model discloses a pressure sensor structure is adopted to detect the internal air pressure of the furnace body in different directions, and when the air pressure is abnormal, timely alarm processing is carried out to avoid safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the main view of the hot blast furnace rotational flow injection burner structure provided by the embodiment of the application.

[0013] Fig. 2 It is the sectional main view of the hot blast furnace rotational flow injection burner provided by the embodiment of the application.

[0014] Fig. 3 It is the first sectional plan view of the hot blast furnace rotational flow injection burner provided by the embodiment of the application.

[0015] Fig. 4 It is the second sectional plan view of the hot blast furnace rotational flow injection burner provided by the embodiment of the application.

[0016] Fig. 5 It is the sectional bottom view of the hot blast furnace rotational flow injection burner provided by the embodiment of the application.

[0017] In the figure: 1, furnace body; 2, regulating platform; 11, coal gas port; 12, air port; 13, first spring rod; 14, upper shell; 15, adjusting motor; 16, main shaft; 17, stirring rod; 18, sleeve; 19, pressure sensor; 21, alarm; 22, top cover; 23, control panel; 24, second spring rod; 25, inclined plate. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

[0019] Please refer to Figs. 1-5In this embodiment, a hot blast stove cyclone jet burner is provided, comprising a stove body 1 and a control platform 2, a gas inlet 11 is installed at the left end of the outer side wall of the stove body 1, an air inlet 12 is installed at the right end of the outer side wall of the stove body 1, a plurality of first spring rods 13 are installed on the top of the stove body 1 along the circumferential direction thereof, the control platform 2 is installed at the bottom of the first spring rod 13, a through hole is formed in the upper end surface of the stove body 1, the control platform 2 is installed in the through hole by sliding fit, an upper shell 14 is installed on the upper end surface of the stove body 1, during operation, the gas enters the stove body 1 through the gas inlet 11, the air enters the stove body 1 through the air inlet 12 for mixing treatment, various gases generated after combustion lift the control platform 2, so that the internal gas pressure of the stove body 1 remains stable, ensuring the stability of the device during operation, and the first spring rod 13 plays a resetting role on the control platform 2.

[0020] A placing groove is formed in the bottom of the control platform 2, an adjusting motor 15 is installed at the top of the placing groove, a main shaft 16 is installed at the output end of the adjusting motor 15, a sleeve 18 is installed on the outer side wall of the main shaft 16 by screwing, a plurality of stirring rods 17 are installed on the outer side wall of the sleeve 18 along the circumferential direction thereof, during operation, the inside of the placing groove is made of heat insulation plate material, the adjusting motor 15 is started to drive the stirring rods 17 to rotate, so that the gas and air are mixed, further ensuring the combustion effect, and the sleeve 18 structure is adopted to facilitate disassembly and replacement of the stirring rods 17.

[0021] A top cover 22 is threadedly and rotatably installed on the upper end surface of the upper shell 14, a pressure sensor 19 is installed at the bottom of the top cover 22, an alarm 21 is installed on the upper end surface of the top cover 22, a control panel 23 is arranged in the upper shell 14, and the control panel 23 is electrically connected with the pressure sensor 19 and the alarm 21, during operation, a PLC program is written in the control panel 23 to control the operation of each device, when the internal gas pressure of the stove body 1 is unstable, the control platform 2 continuously moves upward to press the pressure sensor 19, the pressure sensor 19 senses the pressure signal, when the pressure exceeds the limit value, the signal is transmitted to the control panel 23, the control panel 23 makes the alarm 21 issue an alarm to remind the staff to find out in time, so as to stop the gas supply, and ensure the stability of the internal gas pressure of the stove body 1.

[0022] Second spring rods 24 are arranged in the upper shell 14 in left-right symmetry, an inclined plate 25 is installed at the inner end of the second spring rod 24, and the second spring rod 24 is arranged obliquely, during operation, when the control platform 2 moves upward, it touches the inclined plate 25, so that the second spring rod 24 shrinks to slow down the control platform 2, avoiding the internal gas pressure of the stove body 1 suddenly rising to quickly lift the control platform 2, so that the speed is too fast to cause the pressure sensor 19 to be damaged by knocking.

[0023] In specific work, the coal gas enters into the furnace body 1 through the coal gas port 11, the air enters into the furnace body 1 through the air port 12 to carry out the mixing treatment, various gases after combustion produce the control platform 2 and lift, make the furnace body 1 inside gas pressure keep stable, ensure the stability of the device when working, the first spring rod 13 plays the reset function to the control platform 2.

[0024] Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, if not specially described and limited, are implemented according to the conventional means in the art.

Claims

1. A cyclone jet burner for hot blast stove comprising a stove body (1) and a control console (2), characterized in that, The left end of the outer side wall of the furnace body (1) is provided with a gas port (11), the right end of the outer side wall of the furnace body (1) is provided with an air port (12), a plurality of first spring rods (13) are arranged on the top of the furnace body (1) along the circumferential direction thereof, the bottom of the first spring rod (13) is provided with a control platform (2), a through hole is formed in the upper end surface of the furnace body (1), the control platform (2) is arranged in the through hole by means of sliding fit, and an upper shell (14) is arranged on the upper end surface of the furnace body (1).

2. The hot blast stove cyclone jet burner according to claim 1, characterized in that The bottom of the control platform (2) is provided with a placing groove, the top of the placing groove is provided with an adjusting motor (15), the output end of the adjusting motor (15) is provided with a main shaft (16), and a plurality of stirring rods (17) are arranged on the outer side end of the main shaft (16).

3. The hot blast stove cyclone jet burner according to claim 2, characterized in that The outer side wall of the main shaft (16) is provided with a sleeve (18) by meansing screwing, and a plurality of stirring rods (17) are arranged on the outer side wall of the sleeve (18) along the circumferential direction thereof.

4. The hot blast stove cyclone jet burner according to claim 1, characterized in that The top of the upper shell (14) is provided with an alarm (21), and the top of the upper shell (14) is provided with a control panel (23).

5. The hot blast stove cyclone jet burner according to claim 1, characterized in that The upper end surface of the upper shell (14) is provided with a top cover (22) by means of screwing, the bottom of the top cover (22) is provided with a pressure sensor (19), the upper end surface of the top cover (22) is provided with an alarm (21), and the inside of the upper shell (14) is provided with a control panel (23).

6. The hot blast stove cyclone jet burner according to claim 1, characterized in that The inside of the upper shell (14) is provided with a second spring rod (24) which is arranged symmetrically left and right, the inside end of the second spring rod (24) is provided with an inclined plate (25), and the second spring rod (24) is arranged obliquely.

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