Exhaust gas treatment mechanism for a forging heating furnace

Abstract

This utility model relates to the field of forging production waste gas treatment technology, specifically to a waste gas treatment mechanism for a forging heating furnace. It includes an exhaust port connected to the forging heating furnace, a fan connected to the exhaust port, and a serpentine pipe connected to the fan's outlet. The serpentine pipe contains several downward bends, each of which is sprayed with a solution to dissolve the waste gas. By using the serpentine pipe to treat the waste gas during its discharge process, the residence time of the waste gas within the pipe is increased due to its winding shape, resulting in better dissolution of harmful gases. Water effectively dissolves various sulfur oxides, sodium hydroxide effectively dissolves various nitrogen oxides, and ethanol dissolves carbon monoxide, among others. Therefore, it can effectively dissolve and remove most toxic and harmful gases, enabling the waste gas to meet emission standards. Furthermore, the process is simple and low-cost.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology in forging production, and in particular to a waste gas treatment mechanism for a forging heating furnace. Background Technology

[0002] Forging furnaces have a wide range of applications in metal processing, machinery manufacturing and other fields. They can improve the processing properties of metal materials and various products and parts made of metal materials by heating them, such as increasing plasticity, reducing hardness and optimizing the effects of subsequent forging processes.

[0003] Forging furnaces generate various types of waste gases during operation, which vary depending on the specific forging heating process. Regardless of the type of waste gas, direct emission not only pollutes the air but also harms human health. When the concentration reaches a certain level, it poses serious safety hazards.

[0004] Generally, the exhaust gases generated by forging heating furnaces mainly include the following categories: nitrogen oxides (NOx), such as nitric oxide (NO) and nitrogen dioxide (NO2); sulfur oxides (SOx), such as sulfur dioxide (SO2) and sulfur trioxide (SO3); as well as carbon monoxide (CO), carbon dioxide (CO2), and solid particulate matter, etc. The exhaust gases generated will vary depending on the specific forging heating process.

[0005] Some of these waste gases are soluble in water, such as sulfur oxides (SOx) and some nitrogen oxides (NOx). Others are insoluble or only slightly soluble in water, while still others are soluble in alkaline solutions or various organic solvents. Therefore, these waste gases need to be treated separately to remove most of the toxic and harmful gases, ensuring that the final emissions meet emission standards.

[0006] However, the amount of waste gas produced by forging heating furnaces is not large. Therefore, classifying and treating the waste gas is not only troublesome but also very costly, which is difficult for small manufacturing enterprises to bear. Utility Model Content

[0007] In view of this, the purpose of this utility model is to propose a waste gas treatment mechanism for forging heating furnaces, so as to solve the technical problem of how to effectively remove various toxic and harmful gases from the waste gas generated by forging heating furnaces in a simple and convenient way in the prior art.

[0008] To achieve the above objectives, this utility model provides a waste gas treatment mechanism for a forging heating furnace, including an exhaust port connected to the forging heating furnace, and the waste gas treatment mechanism further includes:

[0009] A fan connected to the exhaust port is used to create a pressure difference to extract waste gas from the forging heating furnace.

[0010] A serpentine pipe connected to the air outlet of the fan, the serpentine pipe containing several downward bends, each downward bend having a set of atomizing nozzles on its sidewall, and each set of atomizing nozzles spraying a solution to dissolve the waste gas;

[0011] An exhaust pipe connected to a serpentine tube, the end of which is open to the atmosphere.

[0012] Furthermore, the serpentine tube includes a downward bend, in which a different solution is sprayed.

[0013] Furthermore, the solution includes, but is not limited to, water, sodium hydroxide, ethanol, and benzene.

[0014] Furthermore, a filter screen is provided at the connection between the fan and the air intake.

[0015] Furthermore, several drain pipes are fixedly connected to the serpentine tube, and a drain pipe is connected to the bottom end of each downward bend. The drain pipe is equipped with an electromagnetic valve.

[0016] Furthermore, several liquid replenishment pipes are fixedly connected to the serpentine tube, and a liquid replenishment pipe is connected to the side of each downward bend. The liquid replenishment pipe is equipped with an electromagnetic valve.

[0017] Furthermore, in the exhaust gas treatment mechanism of a forging heating furnace according to the claim, a lower spray pipe is connected to the side wall of the curved portion of the serpentine tube, the atomizing nozzle is connected to the spray pipe, and the spray pipe is connected to the replenishment pipe.

[0018] Furthermore, an openable water-absorbing box is fixedly connected to the end of the serpentine tube, the water-absorbing box contains a washing cotton, and the exhaust pipe is fixedly connected to the water-absorbing box.

[0019] The beneficial effects of this utility model are as follows: 1. By setting up a serpentine tube to treat exhaust gas during the emission process, and utilizing the winding nature of the serpentine tube, atomizing nozzles are installed in the lower bends of the tube to spray a solution. Each lower bend contains a different solution, such as water, sodium hydroxide, ethanol, and benzene. Water effectively dissolves various sulfur oxides, sodium hydroxide effectively dissolves various nitrogen oxides, and ethanol dissolves carbon monoxide. Therefore, it can effectively dissolve and remove most toxic and harmful gases, enabling the exhaust gas to meet emission standards. Furthermore, the process is simple and the cost is very low.

[0020] 2. Each downward bend is connected to a drain pipe at its bottom and a replenishment pipe on its side. Both pipes communicate with the inner cavity of the downward bend and are equipped with solenoid valves. The replenishment and drain pipes can be opened or closed as needed, or the drain pipe can be opened periodically to drain the solution from the downward bend based on experience. Additionally, a water absorption box is installed at the end of the serpentine tube, containing washing cotton to prevent solution vapor from escaping into the atmosphere. The water absorption box can be opened for easy replacement of the washing cotton.

[0021] 3. The entire gas flow is powered by a fan. A filter screen is installed at the fan inlet to prevent large particles from entering the serpentine tube and causing adverse effects. Depending on the specific waste gas generated by the forging heating process, 2-5 downward bends are set in the serpentine tube. Different solutions are sprayed in different downward bends to ensure that the waste gas treatment requirements are met while minimizing costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in 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 for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall mechanism of the device of this utility model.

[0024] Figure 2 This is a schematic diagram of the rear view structure of the device of this utility model.

[0025] Figure 3 This is a schematic diagram of the serpentine tube section in the device of this utility model.

[0026] Figure 4 This is a schematic diagram of the internal structure of the serpentine tube of the present invention.

[0027] The diagram is marked as follows:

[0028] 101. Fan, 102. Air extraction port, 103. Filter screen, 104. Serpentine tube, 105. Solution, 106. Liquid replenishment tube, 107. Drain tube, 108. Solenoid valve, 109. Water absorption box, 110. Washing cotton, 111. Exhaust pipe, 112. Spray pipe, 113. Atomizing nozzle. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] The first aspect of this utility model is as follows: Figure 1 , Figure 2 and Figure 4 As shown, forging heating furnaces generate various types of waste gases during operation. These waste gases vary depending on the specific forging heating process. Regardless of the type, direct emission of any of these waste gases not only pollutes the air but also harms human health. When the concentration reaches a certain level, it poses a serious safety hazard. Therefore, this solution includes a waste gas treatment system.

[0032] Specifically, an exhaust port 102 is provided, connected to the forging heating furnace. The exhaust port 102 is connected to a blower 101, which draws exhaust gas from the forging heating furnace by creating a pressure difference. A filter screen 103 is installed at the connection between the blower 101 and the exhaust port 102 to prevent larger particles from entering the blower 101 and the serpentine pipe 104 and causing adverse effects. The entire gas flow is powered by the blower 101.

[0033] The exhaust port of the blower 101 is connected to a serpentine pipe 104. The serpentine pipe 104 contains several downward bends, and each downward bend is equipped with a set of atomizing nozzles 113. Each set of atomizing nozzles 113 sprays a solution 105 to dissolve the waste gas. An exhaust pipe 111 is also provided, connected to the serpentine pipe 104. The end of the exhaust pipe 111 can be open to the atmosphere or connected to other subsequent waste gas treatment equipment, which can be set up as needed.

[0034] Preferably, the serpentine tube 104 includes 2-5 downward bends, each containing a different solution 105. The solution 105 includes, but is not limited to, water, sodium hydroxide, ethanol, and benzene. This approach minimizes costs while ensuring compliance with waste gas treatment requirements.

[0035] By using a serpentine pipe 104 to treat exhaust gases during emission, the residence time of the exhaust gases within the pipe is increased due to its winding shape. A solution 105 is sprayed into the lower bends of the pipe, with each bend containing a different solution 105, such as water, sodium hydroxide, ethanol, or benzene. Water effectively dissolves various sulfur oxides, sodium hydroxide effectively dissolves various nitrogen oxides, and ethanol dissolves carbon monoxide. Therefore, most toxic and harmful gases can be effectively dissolved and removed, allowing the exhaust gases to meet emission standards. The process is simple and low-cost.

[0036] The second aspect of this utility model is as follows: Figure 1 , Figure 3 and Figure 4 As shown, the exhaust gas generated by the forging heating furnace contains various toxic and harmful gases, such as nitrogen oxides, sulfur oxides, and carbon oxides. Therefore, it is necessary to treat them separately to remove most of the toxic and harmful gases. This solution uses a serpentine tube 104 to spray different solutions 105 in multiple downward bends to remove these toxic and harmful gases. To minimize costs, this embodiment has several drain pipes 107 fixedly connected to the serpentine tube 104, and each downward bend has a drain pipe 107 connected to its bottom end. Each drain pipe 107 is equipped with a solenoid valve 108. The drain pipes 107 can be opened periodically to discharge the solution 105 from the downward bends.

[0037] In addition, several replenishment pipes 106 are fixedly connected to the serpentine tube 104, and one replenishment pipe 106 is connected to the side of each lower bend. Each replenishment pipe 106 is equipped with a solenoid valve 108. A lower spray pipe 112 is connected to the side wall of the bend of the serpentine tube 104. The atomizing nozzle 113 is connected to the spray pipe 112, and the spray pipe 112 is connected to the replenishment pipe 106.

[0038] Additionally, an openable absorbent box 109 is fixedly connected to the end of the serpentine tube 104. The absorbent box 109 contains a washing cotton 110, and an exhaust pipe 111 is fixedly connected to the absorbent box 109. The washing cotton 110 in the absorbent box 109 prevents solution vapor from escaping into the atmosphere. Furthermore, the absorbent box 109 can be opened, allowing for easy replacement of the washing cotton 110.

[0039] In summary, this invention treats waste gas during the emission process by using a serpentine tube 104. Utilizing the winding nature of the serpentine tube 104, a solution 105 injection mechanism is installed in the lower bends of the tube 104. Each lower bend injects a different solution 105, such as water, sodium hydroxide, ethanol, or benzene. Water effectively dissolves various sulfur oxides, sodium hydroxide effectively dissolves various nitrogen oxides, and ethanol dissolves carbon monoxide. Therefore, it can effectively dissolve and remove most toxic and harmful gases, enabling the waste gas to meet emission standards. The process is simple and low-cost. Each lower bend has a drain pipe 107 connected to its bottom end and a replenishment pipe 106 connected to its side, both communicating with the inner cavity of the lower bend. Both the replenishment pipe 106 and the drain pipe 107 are equipped with electromagnetic valves 108, allowing for periodic or controlled wastewater discharge. Additionally, a water absorption box 109 is installed at the end of the serpentine tube 104, and a washing cotton 110 is installed in the water absorption box 109 to prevent solution vapor from escaping into the atmosphere. The water absorption box 109 can be opened so that the washing cotton 110 can be replaced at any time.

[0040] The entire gas flow is powered by a fan 101. A filter 103 is installed at the inlet of the fan 101 to prevent larger particles from entering the serpentine tube 104 and causing adverse effects. Depending on the specific waste gas generated by the forging heating process, 2-5 downward bends are set in the serpentine tube 104, and different solutions 105 are installed in different downward bends, so as to minimize costs while ensuring that the waste gas treatment requirements are met.

[0041] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0042] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste gas treatment mechanism of a forging heating furnace comprising an air extraction port (102) communicating with the forging heating furnace, characterized by, The waste gas treatment mechanism also includes: A fan (101) connected to the exhaust port (102) is used to create a pressure difference to extract waste gas from the forging heating furnace; A serpentine pipe (104) connected to the air outlet of the fan (101) includes several downward bends. Each downward bend has a set of atomizing nozzles (113) on its sidewall, and each set of atomizing nozzles (113) sprays out a solution (105) to dissolve the waste gas. An exhaust pipe (111) is connected to a serpentine pipe (104), the end of which is connected to the atmosphere.

2. The waste gas treatment mechanism for a forging heating furnace according to claim 1, characterized in that, The serpentine tube (104) comprises 2-5 downward bends, each of which is sprayed with a different solution (105).

3. The waste gas treatment mechanism for a forging heating furnace according to claim 1, characterized in that, The solution (105) includes, but is not limited to, water, sodium hydroxide, ethanol, and benzene.

4. The waste gas treatment mechanism for a forging heating furnace according to claim 1, characterized in that, A filter screen (103) is provided at the connection between the fan (101) and the air extraction port (102).

5. A waste gas treatment mechanism for a forging heating furnace according to claim 1 or 2, characterized in that, A number of drain pipes (107) are fixedly connected to the serpentine tube (104), and a drain pipe (107) is connected to the bottom end of each lower bend. The drain pipe (107) is equipped with a solenoid valve (108).

6. A waste gas treatment mechanism for a forging heating furnace according to claim 1 or 2, characterized in that, A number of replenishment tubes (106) are fixedly connected to the serpentine tube (104), and a replenishment tube (106) is connected to the side of each lower bend. The replenishment tube (106) is equipped with a solenoid valve (108).

7. The waste gas treatment mechanism for a forging heating furnace according to claim 6, characterized in that, The side wall of the curved part of the serpentine tube (104) is connected to a lower spray pipe (112), the atomizing nozzle (113) is connected to the spray pipe (112), and the spray pipe (112) is connected to the replenishment pipe (106).

8. The waste gas treatment mechanism for a forging heating furnace according to claim 1, characterized in that, The end of the serpentine tube (104) is fixedly connected to an openable water-absorbing box (109), which contains a washing cotton (110), and the exhaust pipe (111) is fixedly connected to the water-absorbing box (109).

Images