Acid-making sulfur burning furnace with preheating function

By setting up a heat exchanger and baffle plate in the sulfur incinerator, preheating the air into the furnace body, the additional heat consumption and temperature control problems of sulfur incinerator are solved, and efficient combustion and equipment stability are achieved.

CN223283081UActive Publication Date: 2025-08-29CANGZHOU CHINA RAILWAY EQUIP MFG MATERIALS CO LTD
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Patent Information

Application Number
CN202422144706.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-08-29
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

The existing sulfur incinerator directly introduces room temperature air to help combustion under high temperature conditions, resulting in an increase in additional heat consumption and is difficult to control temperature, affecting the stability of the equipment.

Method used

A heat exchanger is installed in the sulfur incinerator, and the air is preheated through the intake pipe before entering the furnace body. Combining the baffle plate and the heat exchange fins improves heat exchange efficiency, reduces gas consumption and controls the temperature.

Benefits of technology

It improves the combustion efficiency of the sulfur incinerator, reduces gas consumption, ensures stable operation of the equipment, and avoids equipment shutdown caused by excessive temperatures.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223283081U_ABST
Patent Text Reader

Abstract

The utility model discloses an acid-making sulfur burning furnace with a preheating function, which comprises a furnace body, a gas inlet and a gas outlet are respectively arranged at two ends of the furnace body, a feed pipe is further arranged on the furnace body close to one side of the gas inlet, a burner is further arranged in the furnace body close to the gas inlet, a gas inlet pipe is connected to the gas inlet, and a gas outlet pipe is connected to the gas outlet. The air inlet pipe penetrates through the cavity of the furnace body, a heat exchanger is further arranged in the cavity of the furnace body, and the air inlet pipe is connected with the heat exchanger. The heat exchanger is arranged in the furnace body and communicated with the air inlet pipe, the temperature in the furnace body can heat the heat exchanger so as to raise the temperature of air, and then the heated air is conveyed into the furnace body through the other section of air inlet pipe, so that the combustion efficiency in the furnace body is improved, and the consumption of fuel gas is reduced; and the flowing dynamic gas is continuously conveyed in the heat exchanger and can quickly exchange heat with heat in the furnace body, so that the temperature in the furnace body can be prevented from being too high, and the performance of the sulfur burning furnace is greatly improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of sulfur incinerators, in particular to an acid-making sulfur incinerator with a preheating function. Background Art

[0002] The main function of the sulfur incinerator is to convert the hydrogen sulfide in the sulfur tail gas into sulfur dioxide through high-temperature treatment, thereby reducing the pollution of hydrogen sulfide to the environment and avoiding equipment corrosion caused by low-temperature emissions. When the sulfur incinerator is working, it is necessary to spray sulfide into the interior of the sulfur incinerator through a sulfur spray gun, and then use the high heat generated by the burner to treat the sulfide. When the sulfide is burned in the sulfur incinerator, air needs to be transported to the interior of the furnace body to ensure sufficient combustion reaction. At this stage, the air sent into the sulfur incinerator is generally directly introduced into the interior of the furnace body through a pipeline. Since the sulfur incinerator is in a high-temperature state for a long time, during the sulfide incineration process, care must be taken to avoid overheating of the temperature in the sulfur incinerator. At the same time, air at room temperature directly enters the interior of the sulfur incinerator for combustion assistance, which requires additional heat to heat up, which will also increase gas consumption. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide an acid-making sulfur incinerator with a preheating function, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an acid-making sulfur incinerator with a preheating function, comprising a furnace body, an air inlet and an exhaust port are respectively provided at both ends of the furnace body, a feed pipe is also provided on the furnace body at a position close to the air inlet side, and a burner is also provided in the furnace body at a position close to the air inlet, an air inlet pipe is connected to the air inlet, the air inlet pipe passes through the cavity of the furnace body, a heat exchanger is also provided in the cavity of the furnace body, and the air inlet pipe is connected to the heat exchanger.

[0005] Furthermore, the heat exchanger includes diverter joints symmetrically arranged on both sides of the furnace body, and a plurality of heat exchange tubes are evenly distributed between the diverter joints. The heat exchange tubes are respectively connected to the diverter joints on both sides, and the air inlet pipes are respectively connected to the diverter joints on both sides.

[0006] Furthermore, the air inlet pipes connected to the diversion joints all extend toward the outside of the furnace body, one air inlet pipe is connected to the air inlet, and the other air inlet pipe is provided with a fan for supplying air into the air inlet.

[0007] Furthermore, a plurality of heat exchange fins are evenly distributed on the outside of the heat exchange tube.

[0008] Furthermore, the furnace body is provided with a plurality of staggered baffles on the inner wall of the inner wall.

[0009] Furthermore, a sulfur spray gun is provided at one end of the feed pipe located inside the furnace body.

[0010] Furthermore, insulation bricks and refractory bricks are provided on the inner wall of the furnace body.

[0011] The above technical solution of the present invention has the following beneficial effects: the present invention arranges a heat exchanger in the furnace body and connects the heat exchanger with the air intake pipe. The air is first input into the interior of the heat exchanger through a section of the air intake pipe to flow. At this time, the temperature in the furnace body will heat the heat exchanger to heat the air. The heated air is then transported to the interior of the furnace body through another section of the air intake pipe. The preheated air enters the furnace body, which can improve the combustion efficiency inside the furnace body and reduce the consumption of fuel gas. The flowing dynamic air is continuously transported in the heat exchanger and can also quickly exchange heat with the heat in the furnace body. In this way, the temperature in the furnace body can be prevented from being too high, which greatly improves the performance of the sulfur incinerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main cross-sectional structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0013] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0014] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0015] like Figure 1 As shown, the acid-making sulfur incinerator with a preheating function described in this embodiment includes a furnace body 1, an air inlet 1a and an exhaust port 1b are respectively provided at both ends of the furnace body 1, a feed pipe 2 is further provided on the furnace body 1 at a position close to the air inlet 1a, a burner 3 is further provided in the furnace body 1 at a position close to the air inlet 1a, an air inlet pipe 4 is connected to the air inlet 1a, the air inlet pipe 4 passes through the chamber of the furnace body 1, a heat exchanger is further provided in the chamber of the furnace body 1, and the air inlet pipe 4 is connected to the heat exchanger.

[0016] The heat exchanger includes diverter joints 5 symmetrically arranged on both sides of the furnace body 1, and a plurality of heat exchange tubes 6 are evenly distributed between the diverter joints 5. The heat exchange tubes 6 are respectively connected to the diverter joints 5 on both sides, and the air inlet pipes 4 are respectively connected to the diverter joints 5 on both sides.

[0017] The air inlet pipes 4 connected to the diversion joint 5 are both extended to the outside of the furnace body 1. One air inlet pipe 4 is connected to the air inlet 1a, and the other air inlet pipe 4 is provided with a fan 7 for supplying air into the air inlet 1a.

[0018] A plurality of heat exchange fins 8 are evenly distributed on the outside of the heat exchange tube 6 , and the heat exchange fins 8 can improve the heat exchange efficiency of the air in the heat exchange tube 6 .

[0019] The furnace body 1 is also provided with a plurality of staggered baffles 9 on the inner wall thereof. The baffles 9 allow air to collide when circulating inside the furnace body 1, thereby slowing down the flow rate of the air, so that the air can fully contact with the sulfide and undergo a combustion reaction, thereby improving the oxidation efficiency of the sulfide and preventing the residual sulfide from being directly discharged without reacting.

[0020] A sulfur spray gun 10 is provided at one end of the feed pipe 2 located inside the furnace body 1 .

[0021] Preferably, insulation bricks (not shown in the figure) and refractory bricks (not shown in the figure) are provided on the inner wall of the furnace body 1, which can improve the heat resistance of the sulfur incinerator and maintain the temperature inside the sulfur incinerator to avoid excessive heat loss.

[0022] The working principle of the present utility model is as follows: first, the fan 7 will introduce air, and the introduced air will enter the diversion joint 5 at one end of the furnace body 1 through a section of the air inlet pipe 4. After the air is diverted, it will flow into each heat exchange tube 6 respectively, so that the heat exchange efficiency between the air and the heat in the furnace body 1 can be improved. The air after heat exchange will be converged through another section of the diversion joint 5 and transported to the air inlet 1a at the end of the furnace body 1 through another section of the air inlet pipe 4. Subsequently, the heated air enters the interior of the furnace body 1 through the air inlet 1a. At the same time, the burner 3 in the furnace body 1 is ignited, and the liquid sulfur is transported to the furnace body 1 through the feed pipe 2 and the sulfur spray gun 10. Inside the furnace body 1, the air and sulfide are mixed and react after being heated by the burner 3. The reaction products and excess air are then discharged through the exhaust port 1b.

[0023] During the sulfur incineration reaction process, air enters the heat exchanger, absorbs heat and is then transported to the inside of the furnace body 1, which can reduce the consumption of fuel gas and improve the efficiency of the combustion reaction. The external air continuously flows through the heat exchanger, which can also effectively control the heat in the furnace body 1, thereby avoiding equipment shutdown caused by excessive temperature in the furnace body 1, thus ensuring the normal operation of the sulfur incinerator.

[0024] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. An acid-making sulfur incinerator with a preheating function, characterized by: It includes a furnace body, with an air inlet and an exhaust port respectively provided at both ends of the furnace body, a feed pipe also provided on the furnace body near the air inlet side, a burner also provided in the furnace body near the air inlet, an air inlet pipe connected to the air inlet, the air inlet pipe passes through the cavity of the furnace body, a heat exchanger is also provided in the cavity of the furnace body, and the air inlet pipe is connected to the heat exchanger.

2. The acid-making sulfur incinerator with preheating function according to claim 1, characterized in that: The heat exchanger includes diversion joints symmetrically arranged on both sides of the furnace body, and a plurality of heat exchange tubes are evenly distributed between the diversion joints. The heat exchange tubes are respectively connected to the diversion joints on both sides, and the air inlet pipes are respectively connected to the diversion joints on both sides.

3. The acid-making sulfur incinerator with preheating function according to claim 2, characterized in that: The air inlet pipes connected to the diversion joints all extend toward the outside of the furnace body, one air inlet pipe is connected to the air inlet, and the other air inlet pipe is provided with a fan for supplying air into the air inlet.

4. The acid-making sulfur incinerator with preheating function according to claim 3, characterized in that: A plurality of heat exchange fins are evenly distributed on the outer side of the heat exchange tube.

5. The acid-making sulfur incinerator with preheating function according to claim 1, characterized in that: The furnace body is further provided with a plurality of staggered baffles on the inner wall thereof.

6. The acid-making sulfur incinerator with preheating function according to claim 1, characterized in that: A sulfur spray gun is provided at one end of the feed pipe located in the furnace body.

7. The acid-making sulfur incinerator with preheating function according to claim 1, characterized in that: Insulation bricks and refractory bricks are arranged on the inner wall of the furnace body.