CN219160768U

CN219160768U - Baking and preheating system of refractory brick gasifier

Info

Publication number: CN219160768U
Application number: CN202223247444.4U
Authority: CN
Inventors: 王大勇; 潘强; 李金坤; 马高强; 张闯; 谢纪盟; 谷小虎
Original assignee: Henan Shenma Hydrogen Chemical Co ltd
Current assignee: Henan Shenma Hydrogen Chemical Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-09
Anticipated expiration: 2032-12-05

Abstract

The utility model provides a baking and preheating system of a refractory brick gasifier, which belongs to the technical field of refractory material production equipment and comprises a gas main pipe, wherein the gas main pipe is used for conveying natural gas, and the gas main pipe is respectively connected with a first gas branch pipe and a second gas branch pipe; the combustion nozzle is used for baking the inside of the furnace body and is connected with the first gas branch pipe; the pilot burner provides a fire source for combustion of the combustion nozzle and is connected with the second fuel gas branch pipe; the utility model can avoid the tempering condition, ensure the safe and stable operation of the equipment, and simultaneously can prevent the temperature in the furnace from being reduced after tempering.

Description

Baking and preheating system of refractory brick gasifier

Technical Field

The utility model relates to the technical field of refractory material production equipment, in particular to a baking and preheating system of a refractory brick gasification furnace.

Background

The refractory brick gasification furnace must be baked before starting, and aims to remove adsorbed water and crystal water in refractory materials and maintain the quality safety of castable, but in the baking period, because of factors such as unstable negative pressure of pumping or water seal, the tempering of a burner can be caused, flame can not normally enter the furnace, the baking temperature is reduced, the maintenance of refractory bricks is affected, the service life of the refractory bricks is shortened, and in addition, baking facilities are damaged and the personal safety of patrol staff is threatened. And secondly, as the main pipe of the natural gas is branched into two branch pipes which are respectively supplied to the combustion nozzle and the pilot burner, the air inflow of the combustion nozzle is reduced, and the flame temperature is reduced.

Disclosure of Invention

The utility model provides a baking and preheating system of a refractory brick gasifier, which aims to solve the technical problems that in the prior art, the temperature in the interior of the gasifier is not up to standard due to the tempering of a burner and the more split natural gas.

In order to solve the problems, the baking and preheating system of the refractory brick gasification furnace provided by the utility model adopts the following technical scheme: the natural gas conveying device comprises a gas main pipe, wherein the gas main pipe is used for conveying natural gas, and the gas main pipe is respectively connected with a first gas branch pipe and a second gas branch pipe; the combustion nozzle is used for baking the inside of the furnace body and is connected with the first gas branch pipe; the pilot burner provides a fire source for combustion of the combustion nozzle and is connected with the second fuel gas branch pipe;

and the second gas branch pipe is provided with a pressure regulating valve for regulating the air inflow of natural gas, and the air inflow of the gas of the combustion nozzle is increased by reducing the air inflow of the gas of the second gas branch pipe, so that the combustion temperature of the combustion nozzle is increased.

Through adopting above-mentioned technical scheme, can reduce the gas flow of second gas branch pipe, guarantee that the pilot burner can the normal operating condition under, reduce the natural gas that the pilot burner consumed, realize improving the flame temperature of combustion nozzle.

As a further improvement, the pressure regulating valve is a self-operated pressure regulating valve.

By adopting the technical scheme, the refitting cost can be reduced, and the cost of the self-operated pressure regulating valve is relatively lower than that of the gauge type pressure regulating valve.

As a further improvement, flame arresters are arranged on the first gas branch pipe and the second gas branch pipe so as to prevent tempering and avoid temperature reduction in the baking furnace.

By adopting the technical scheme, tempering can be avoided, and in the period of baking, due to factors such as unstable negative pressure of pumping or water seal, the tempering of the burner is possibly caused, flame flows back into the pipeline, so that the temperature in the furnace is reduced, and safety accidents are seriously and possibly caused.

As a further improvement, a third gas branch pipe is connected to the first gas branch pipe, and the third gas branch pipe is connected to the side wall of the combustion nozzle and communicated with the combustion nozzle.

By adopting the technical scheme, the natural gas is dispersed, so that the natural gas and the air are more favorably fully mixed, and the natural gas combustion is favorably realized.

As a further improvement, the side wall of the combustion nozzle is provided with a flame detector for detecting and monitoring the flame in the furnace body.

By adopting the technical scheme, the flame in the furnace can be detected and monitored in real time, and the adjustment can be made in time.

As a further improvement, the flame detector is also connected with an air duct, which is connected with an external blower system, and the channel of the flame detector is cleaned by blowing air.

By adopting the technical scheme, the channel of the flame detector can be cleaned, the accurate detection result is ensured, partial oxygen can be provided, and the natural gas can be combusted more fully after being mixed with the oxygen.

As a further improvement, a fuel gas regulating valve is also arranged on the first fuel gas branch pipe for regulating the flow of fuel gas.

By adopting the technical scheme, the temperature in the furnace is conveniently controlled.

The technical scheme of the utility model has the following beneficial effects:

1. the effect of pilot lamp only provides the ignition source, discovers in the use that the pilot lamp is undulant because of natural gas pressure fluctuation, through setting up self-operated air-vent valve, reduces the gas flow of second gas branch pipe, neither influences the normal operating of pilot lamp like this, also can reduce the natural gas that the pilot lamp consumed to realize improving the flame temperature of combustion nozzle.

2. Through setting up the flame arrester, can avoid appearing the condition of tempering, guarantee the operation of equipment safety and stability, also can prevent the condition that the temperature reduces in the stove after tempering simultaneously.

3. The flame detector is connected with the air duct, and the external fan is used for distributing air to remove impurities in the flame detector pipeline, so that the detection and detection precision are improved.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the utility model are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic diagram of a baking and preheating system of a conventional refractory brick gasifier;

FIG. 2 is a schematic diagram of a baking and preheating system of the refractory brick gasification furnace according to the present utility model.

Reference numerals illustrate:

1. a gas main pipe; 2. an air duct; 3. a second gas branch pipe; 4. a self-operated regulating valve; 5. a fuel gas regulating valve; 6. a first gas branch pipe; 7. a flame arrester; 8. a third gas branch pipe; 9. a pilot lamp; 10. a flame detector; 11. and (3) a combustion nozzle.

Detailed Description

The following description of the embodiments of the present utility model will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the prior art, the temperature in the furnace can be reduced sometimes when the furnace is baked, after the reason is analyzed, the temperature is improved, firstly, the condition of tempering the combustion nozzle is caused by the factors of unstable negative pressure of the pumping of the furnace or water seal and the like, flame arresters are arranged on the first gas branch pipe and the second gas branch pipe, the condition of tempering flame is avoided, and the temperature in the furnace is ensured to be kept normal.

And secondly, a self-operated pressure regulating valve is further arranged on the second gas branch pipe, so that the gas flow of the second gas branch pipe is reduced, the normal operation of the pilot burner is not influenced, the natural gas consumed by the pilot burner can be reduced, and the flame temperature of the combustion nozzle is improved.

Having described the basic principles of the present utility model, various non-limiting embodiments of the utility model are described in detail below. Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.

The principles and spirit of the present utility model are explained in detail below with reference to several representative embodiments thereof.

Example 1 of a baking and preheating system of a refractory brick gasifier provided by the utility model:

as shown in fig. 2, the natural gas conveying device comprises a gas main pipe 1, wherein the gas main pipe 1 is used for conveying natural gas, the gas main pipe 1 is respectively connected with a first gas branch pipe 6 and a second gas branch pipe 3, valves for controlling gas on-off are arranged on the gas main pipe 1 and other branch pipes, and the parts are of conventional design and are not repeated one by one; the combustion nozzle 11 is used for baking the inside of the furnace body, and the combustion nozzle 11 is connected with the first gas branch pipe 6; the pilot burner 9 provides a fire source for the combustion of the combustion nozzle 11, the pilot burner 9 is connected with the second gas branch pipe 3, the pilot burner 9 is in the prior art, and the structure of the pilot burner 9 is not described here;

as shown in fig. 2, a pressure regulating valve for regulating the intake air amount of natural gas is installed on the second gas branch pipe 3, and the intake air amount of the gas of the combustion nozzle 11 is increased by decreasing the intake air amount of the gas of the second gas branch pipe 3, thereby increasing the combustion temperature of the combustion nozzle 11. Through adopting above-mentioned technical scheme, can reduce the gas flow of second gas branch pipe 3, guarantee that the natural gas that the pilot burner 9 consumed is reduced under the circumstances that pilot burner 9 can normal operating, realize improving the flame temperature of combustion nozzle 11.

In this embodiment, the pressure regulating valve is a self-operated pressure regulating valve, and the cost is relatively lower than that of a gauge type pressure regulating valve.

As shown in fig. 2, the fire arresters 7 are installed on the first gas branch pipe 6 and the second gas branch pipe 3 to prevent tempering and avoid temperature reduction in the oven, and the fire arresters 7 are in the prior art and can be purchased directly and are not described in detail herein. By adopting the technical scheme, tempering can be avoided, and in the period of baking, due to factors such as unstable negative pressure of pumping or water seal, the tempering of the burner is possibly caused, flame flows back into the pipeline, so that the temperature in the furnace is reduced, and safety accidents are seriously and possibly caused.

As shown in fig. 2, the first gas branch pipe 6 is connected with a third gas branch pipe 8, and the third gas branch pipe 8 is connected to the side wall of the combustion nozzle 11 and communicates with the combustion nozzle 11. By adopting the technical scheme, the natural gas is dispersed, so that the natural gas and the air are more favorably fully mixed, and the natural gas combustion is favorably realized.

As shown in fig. 2, a flame detector 10 is mounted on a side wall of the combustion nozzle 11 for detecting and monitoring flames in the furnace, and the flame detector 10 is a prior art. By adopting the technical scheme, the flame in the furnace can be detected and monitored in real time, and the adjustment can be made in time.

As shown in fig. 2, the flame detector 10 is also connected with an air duct 2, and the air duct 2 is connected with an external blower system to clean the passage of the flame detector 10 by blowing air. By adopting the technical scheme, the channel of the flame detector 10 can be cleaned, the detection result is accurate, partial oxygen can be provided, and the natural gas can be combusted more fully after being mixed with the oxygen.

As shown in fig. 2, a fuel gas regulating valve 5 for regulating the flow of the fuel gas is also mounted on the first fuel gas branch pipe 6. By adopting the technical scheme, the temperature in the furnace is conveniently controlled.

While various embodiments of the present utility model have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes, and substitutions will now occur to those skilled in the art without departing from the spirit and scope of the utility model. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. The appended claims are intended to define the scope of the utility model and are therefore to cover all module forms, equivalents, or alternatives falling within the scope of the claims.

Claims

1. A bake pre-heating system for a refractory brick gasifier, comprising:

the gas main pipe (1) is used for conveying natural gas, and the gas main pipe (1) is respectively connected with a first gas branch pipe (6) and a second gas branch pipe (3);

the combustion nozzle (11) is used for baking the inside of the furnace body, and the combustion nozzle (11) is connected with the first gas branch pipe (6);

the pilot burner (9) provides a fire source for the combustion of the combustion nozzle (11), and the pilot burner (9) is connected with the second fuel gas branch pipe (3);

the gas combustion device is characterized in that the second gas branch pipe (3) is provided with a pressure regulating valve for regulating the gas inflow of natural gas, and the gas inflow of the combustion nozzle (11) is increased by reducing the gas inflow of the second gas branch pipe (3), so that the combustion temperature of the combustion nozzle (11) is increased.

2. The bake and preheat system of a refractory brick gasifier as recited in claim 1, wherein: the pressure regulating valve is a self-operated pressure regulating valve.

3. The bake and preheat system of a refractory brick gasifier as recited in claim 1, wherein: flame arresters (7) are arranged on the first gas branch pipe (6) and the second gas branch pipe (3) so as to prevent tempering and avoid temperature reduction in the baking furnace.

4. A baking and preheating system of a refractory brick gasification furnace according to claim 1 or 3, characterized in that: the first gas branch pipe (6) is connected with a third gas branch pipe (8), and the third gas branch pipe (8) is connected to the side wall of the combustion nozzle (11) and is communicated with the combustion nozzle (11).

5. The bake and preheat system of a refractory brick gasifier as recited in claim 1, wherein: the side wall of the combustion nozzle (11) is provided with a flame detector (10) for detecting and monitoring the flame in the furnace body.

6. The bake and preheat system of a refractory brick gasifier as recited in claim 5, wherein: the flame detector (10) is also connected with an air duct (2), and the air duct (2) is connected with an external blower system to clean the channel of the flame detector (10) by blowing air.

7. The bake and preheat system of a refractory brick gasifier as recited in claim 1, wherein: and the first gas branch pipe (6) is also provided with a fuel gas regulating valve (5) for regulating the gas flow.