Solid solution furnace with flue gas treatment structure

Abstract

The utility model discloses a solid solution furnace with a flue gas treatment structure, which comprises a heating chamber and a conveying device, the conveying device is arranged outside and inside the solid solution furnace, inclined planes are arranged on two sides of the heating chamber of the solid solution furnace, inclined conveying components are arranged on the inclined planes, a baffle is obliquely arranged above the inclined planes, and the inclined conveying components are arranged on the baffle. And a flue gas collecting port is formed in the position, close to the inlet / outlet, in the solid solution furnace chamber, and is connected with an exhaust pipeline. According to the solid solution furnace with the flue gas treatment structure, the inclined planes are arranged at the feed port and the discharge port in the two sides of the solid solution furnace, and the upper gas collection port is formed above the upper ends of the inclined planes, so that the problem that flue gas overflows through the feed port and the discharge port can be effectively solved under the combined action of negative pressure of the gas collection port.

Description

Technical Field

[0001] This utility model relates to a solution furnace with a flue gas treatment structure. Background Technology

[0002] Metal parts are typically plastically formed in a soft state, including through methods such as cold extrusion. Subsequent heat treatment optimizes the material's microstructure, resulting in excellent mechanical properties such as hardness, strength, and toughness. In this heat treatment process, the metal workpiece is usually heated to a certain temperature and held for a specific time, followed by rapid cooling to achieve a single-phase microstructure at room temperature, similar to that at high temperatures, thus preparing for subsequent tempering. A solution furnace is a device used for heat treatment of materials. Traditional solution furnaces use fuel combustion in a heating chamber to generate heat for the metal parts. A small amount of flue gas from traditional solution furnaces can overflow from the inlet and outlet into the production workshop. This flue gas contains metal oxides, particulate matter, and is at a high temperature, making it difficult to handle and posing a hazard to personnel and equipment. Utility Model Content

[0003] In view of the problem that a small amount of flue gas in existing solution furnaces easily overflows at the inlet and outlet, the purpose of this utility model is to provide a solution furnace with a flue gas treatment structure.

[0004] Therefore, the present invention provides a solution furnace with a flue gas treatment structure, including a heating chamber and a conveying device. The conveying device is arranged outside and inside the solution furnace. The heating chamber of the solution furnace has inclined surfaces on both sides, and inclined conveying components are provided on the inclined surfaces. A baffle is inclined above the inclined surfaces. A flue gas collection port is provided in the cavity of the solution furnace near the inlet and outlet, and the collection port is connected to an exhaust pipe.

[0005] Furthermore, the inclined surface slopes upwards from outside the solution furnace to the chamber of the solution furnace, and the upper end of the inclined surface is higher than the lower end of the baffle.

[0006] Furthermore, the conveying device includes an external conveying component and an internal conveying component. The internal conveying component is engaged with the upper end of the inclined conveying component, and the external conveying component is engaged with the lower end of the inclined conveying component. The position of the internal conveying component is higher than that of the external conveying component.

[0007] Furthermore, the solid solution furnace chamber is provided with multiple gas collection ports, and the exhaust pipe is connected to the flue gas cooling chamber.

[0008] Furthermore, the flue gas cooling chamber includes two chambers, through which flue gas flows. The second chamber contains cooling water, and the first and second chambers exchange heat.

[0009] Furthermore, the second chamber is connected to multiple heat-conducting plates, which extend into the first chamber and divide the first chamber into multiple flue gas channels. The flue gas inlet is located at one end of the channel, and the outlet is located at the other end of the channel.

[0010] Furthermore, the flue gas inlet is located at the lower end of the side wall of the first chamber, and the outlet is located at the upper end of the side wall of the first chamber.

[0011] Furthermore, the lower end of the first chamber is a conical structure, and the lower end of the heat-conducting plate also has a conical plate that matches the lower end of the first chamber. The lower end of the first chamber is connected to the discharge port.

[0012] Furthermore, the first chamber is equipped with a high-pressure air nozzle or a high-pressure flushing nozzle, with the nozzle facing the direction of the flow channel.

[0013] Furthermore, the flue gas cooling chamber is connected to a pipe, which is connected to an air purification device.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] This utility model discloses a solution furnace with a flue gas treatment structure. By setting inclined surfaces at the feed inlet and discharge outlet on both sides of the solution furnace, and placing the upper gas collection port above the upper end of the inclined surface, the combined effect of the negative pressure at the gas collection port can effectively reduce the overflow of flue gas through the feed inlet and discharge outlet.

[0016] In a specific embodiment of this utility model, a flue gas cooling chamber is provided before purifying the flue gas. The flue gas cooling chamber includes two chambers, which exchange heat through a heat-conducting plate. The heat-conducting plate is arranged parallel to the flue gas flow direction to form several straight flow channels. High-pressure nozzles are also used to clean the particulate matter adsorbed on the heat-conducting plate, so as to keep the flow channels unobstructed and the heat exchange efficiency of the heat-conducting plate improved. Attached Figure Description

[0017] Figure 1 A schematic diagram illustrating a specific embodiment of this utility model;

[0018] Figure 2 This is a top view of the flue gas cooling chamber;

[0019] Figure 3 This is a cross-sectional schematic diagram of the flue gas cooling chamber.

[0020] Explanation of reference numerals in the attached drawings: 1. Solution furnace; 2. Heating chamber; 3. Inclined conveyor assembly; 4. Baffle; 5. Gas collection port; 6. External conveyor assembly; 7. Internal conveyor assembly; 8. Flue gas cooling chamber; 801. First chamber; 802. Second chamber; 803. Heat-conducting plate; 804. Discharge port; 805. High-pressure flushing nozzle; 9. Exhaust pipe. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] Reference Figures 1 to 3 As shown, this utility model discloses a solution furnace with a flue gas treatment structure, including a heating chamber 2 and a conveying device. The conveying device is located outside and inside the solution furnace. The heating chamber 2 of the solution furnace 1 has inclined surfaces on both sides, with inclined conveying components 3 on the inclined surfaces. A baffle 4 is inclined above the inclined surfaces. A flue gas collection port 5 is located inside the solution furnace cavity near the inlet and outlet, and the collection port 5 is connected to an exhaust pipe 9. (Refer to...) Figure 1 As shown, an external conveying assembly 6 and an internal conveying assembly 7 are provided on the outside of the solution furnace 1. The conveying assemblies can be conveying rollers or conveying chains, or other conveying structures of the prior art. In this embodiment, inclined surfaces are provided at the inlet and outlet of the solution furnace 1. The inclined surfaces slope upward from the outside of the solution furnace to the chamber of the solution furnace 1. An inclined conveying assembly 3 is provided on the inclined surface, which can be a chain conveyor. A baffle 4 is provided above the inclined surface, which is basically parallel to the inclined surface. The upper end of the inclined surface is higher than the lower end of the baffle 4. The internal conveying assembly 7 is horizontally set and cooperates with the upper end of the inclined conveying assembly 3. The external conveying assembly 6 is also horizontally set and cooperates with the lower end of the inclined conveying assembly 3. The position of the internal conveying assembly 7 is higher than that of the external conveying assembly 6. A gas collecting port 5 is provided above the chamber near the inlet and outlet. In this embodiment, the baffles 4 at the feed inlet and the discharge outlet form a downward-sloping channel with the inclined surface. At this time, the flue gas temperature is very high, generally several hundred degrees Celsius. The heated flue gas flows upward, and due to the combined effect of the negative pressure at the gas collecting port 5, the flue gas will flow upward. With the downward-sloping channels set at the feed inlet and discharge outlet, the flue gas is not easy to escape outward.

[0023] In the above embodiments, reference is made to Figure 1 As shown, the cavity of the solution furnace 1 is equipped with multiple gas collecting ports 5. The gas collecting ports 5 are made of high-temperature resistant metal and are evenly spaced along the cavity. Each gas collecting port 5 is connected to an exhaust pipe 9, which in turn connects to a flue gas cooling chamber 8. The flue gas cooling chamber 8 is connected to a pipe, which in turn connects to an air purification device, such as an electrostatic precipitator. (Refer to...) Figure 2 and Figure 3As shown, the flue gas cooling chamber 8 includes two chambers. Flue gas flows through the first chamber 801, and cooling water is provided in the second chamber 802. The first chamber 801 and the second chamber 802 exchange heat. A conical structure is provided at the bottom of the first chamber 801, and a rectangular structure is provided at the top. The second chamber 802 has a flat structure. Cooling water is introduced into one side of the second chamber 802, and a cooling water pipe is connected to the other side, which can effectively recover the heat of the flue gas. The bottom plate of the first chamber 801 is made of a metal thermally conductive material, and multiple heat-conducting plates 803 are connected to the bottom plate. The heat-conducting plates 803 are sheet-like and have a structure that cooperates with the first chamber 801, that is, the front is a combination of rectangular and triangular shapes. A certain distance is left between the heat-conducting plates 803 and adjacent heat-conducting plates 803 to form a straight flow channel. The inlet and outlet directions of the flue gas are parallel to the flow channel. The cross-sectional area of ​​the flue gas exhaust pipe 9 is smaller than that of the first chamber 801, which reduces the velocity of the incoming flue gas, facilitating heat exchange. The length of the heat-conducting plates 803 is generally relatively long, allowing the flue gas to remain in the first chamber 801 for a sufficient time to achieve cooling. This embodiment differs from traditional heat exchange structures, which involve setting multiple cooling pipes in the heat exchange chamber and surrounding the cooling pipes with fine heat-conducting fins. Since the high-temperature flue gas in this embodiment contains metal oxides and solid particles, these solid particles easily settle onto the cooling pipes and heat-conducting fins after the flue gas velocity and temperature decrease, requiring regular cleaning. In this application, the heat-conducting fins are vertically arranged and connected to the bottom plate of the upper second chamber 802. When the particles settle, they are discharged along the discharge port 804 of the conical structure of the first chamber 801 under their own weight.

[0024] In the above embodiments, reference is made to Figure 3 As shown, the flue gas inlet is located at the lower end of the side wall of the first chamber 801, and the outlet is located at the upper end of the side wall of the first chamber 801. This arrangement is more conducive to the settling of some larger solid particles, reducing the number of solid particles in subsequent treatment processes.

[0025] In the above embodiments, reference is made to Figure 3 As shown, the first chamber 801 is equipped with a high-pressure air nozzle or a high-pressure flushing nozzle 805, with the nozzle facing the direction of the flow channel. This embodiment can cool the flue gas not only through heat exchange but also through spraying. Generally, when the heat exchange malfunctions or the flue gas temperature does not reach the standard, the nozzle is opened for spraying cooling. Furthermore, after the cooling chamber has been used for a period of time, the high-pressure air nozzle or the high-pressure flushing nozzle 805 can be activated to spray and flush along the flow channel, removing adhering particles from the heat-conducting plate 803. The control valve on the discharge port 804 is then opened to allow external discharge, enabling cleaning and maintenance of the heat-conducting plate 803 without opening the flue gas cooling chamber, improving the cooling effect and saving maintenance costs.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A solution furnace having a flue gas treatment configuration, comprising a heating chamber and a conveying device, the conveying device being arranged outside the solution furnace and inside the solution furnace, characterized in that: The heating chamber of the solution furnace is provided with a slope on both sides, the slope is provided with a slope conveying assembly, the upper side of the slope is provided with a baffle, the chamber of the solution furnace is provided with a smoke collecting port near the entrance and exit, and the collecting port is connected with an exhaust pipeline.

2. A solution furnace having a flue gas treatment configuration according to claim 1, characterized in that: The slope is inclined upward from the outside of the solution furnace to the chamber of the solution furnace, and the upper end of the slope is higher than the lower end of the baffle.

3. A solution furnace having a flue gas treatment configuration according to claim 2, characterized in that: The conveying device comprises an outside conveying assembly and an inside conveying assembly, the inside conveying assembly is matched with the upper end of the slope conveying assembly, the outside conveying assembly is matched with the lower end of the slope conveying assembly, and the position of the inside conveying assembly is higher than that of the outside conveying assembly.

4. A solution furnace with flue gas treatment configuration according to claim 1 or 2 or 3, characterized in that: The chamber of the solution furnace is provided with a plurality of collecting ports, and the exhaust pipeline is connected into a smoke cooling chamber.

5. A solution furnace having a flue gas treatment configuration according to claim 4, characterized in that: The smoke cooling chamber comprises two layers of chambers, smoke flows through the first chamber, cooling water is arranged in the second chamber, and the first chamber and the second chamber exchange heat.

6. A solution furnace having a flue gas treatment configuration according to claim 5, characterized in that: The second chamber is connected with a plurality of heat-conducting plates, the heat-conducting plates extend into the first chamber and divide the first chamber into a plurality of smoke flow channels, the inlet of the smoke is arranged at one end of the flow channel, and the outlet is arranged at the other end of the flow channel.

7. A solution furnace having a flue gas treatment configuration according to claim 6, characterized in that: The inlet of the smoke is arranged at the lower end of the side wall of the first chamber, and the outlet is arranged at the upper end of the side wall of the first chamber.

8. A solution furnace having a flue gas treatment configuration according to claim 6, characterized in that: The lower end of the first chamber is a conical structure, the lower end of the heat-conducting plate also has a conical plate matched with the lower end of the first chamber, and the lower end of the first chamber is connected with a discharge port.

9. A solution furnace having a flue gas treatment configuration according to claim 8, characterized in that: The first chamber is provided with a high-pressure air nozzle or a high-pressure flushing nozzle, and the direction of the nozzle is toward the direction of the flow channel.

10. The solution furnace with a flue gas treatment configuration according to claim 4, characterized in that: The smoke cooling chamber is connected with a pipeline, and the pipeline is connected to an air purification device.

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