Trolley type fuel gas annealing furnace capable of controlling temperature in partition mode

Abstract

The utility model discloses a trolley type fuel gas annealing furnace capable of controlling temperature in different areas. The furnace comprises a hearth, a furnace door, a trolley, a heat insulation wall, a limiting pin, a slide way and a combustor, two parallel slideways are arranged on the upper surface of the trolley, and the heat insulation wall is installed in the slideways on the upper surface of the trolley and can slide left and right along the slideways. The hearth is divided into two parts by the heat insulation wall, so that the left and right subareas of the annealing furnace can operate independently or simultaneously; the combustors are arranged on the side walls of the left side and the right side of the hearth respectively, multiple sets of modular arrays are adopted, and each set of combustor can independently control the fuel flow and the flame intensity. The device is simple in structure and convenient to operate, not only improves the volume utilization rate of the hearth, but also can improve the operation efficiency of the annealing furnace, and has stronger adaptability and economical efficiency.

Description

Technical Field

[0001] This utility model relates to the field of annealing furnace technology, and in particular to a trolley-type gas annealing furnace with zoned temperature control. Background Technology

[0002] Annealing is a widely used process for processing metallic materials to improve their microstructure and properties. Existing bogie-type gas-fired annealing furnaces typically have a fixed furnace volume, which presents several drawbacks when processing workpieces of varying sizes and batches. For small batches of small-sized workpieces, the fixed, large furnace volume leads to energy waste and significantly increases production costs. Furthermore, for larger workpieces, if the furnace volume cannot be flexibly adjusted, the workpiece may not receive uniform and adequate heating within the furnace, resulting in localized overheating or underheating, thus affecting the annealing process. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model proposes a trolley-type gas annealing furnace with low energy consumption and flexible zone temperature control, in order to achieve precise and real-time temperature control inside the furnace during the annealing process, and effectively improve the uniformity of temperature field and flow field distribution.

[0004] This utility model is achieved using the following technical solution:

[0005] A trolley-type gas-fired annealing furnace with zoned temperature control includes a furnace chamber, a furnace door, and a trolley. The furnace door is located directly in front of the furnace chamber and can move up and down to open and close. The trolley is located below the furnace chamber and can move back and forth to enter or exit the furnace chamber as needed. The furnace chamber is divided into two parts by a heat insulation wall. Two parallel slides are provided on the upper surface of the trolley, and the top of the heat insulation wall is installed in the slides on the upper surface of the trolley, allowing it to slide left and right along the slides. Burners are respectively arranged on the side walls on the left and right sides of the furnace chamber, and the burners adopt multiple modular arrays.

[0006] The heat insulation wall is provided with two limit pins on each side, for a total of four, which can fix the position of the heat insulation wall as required. The top of the heat insulation wall is fixed to the slide rail on the upper surface of the trolley by the four limit pins.

[0007] Each burner group can independently control fuel flow and flame intensity.

[0008] The beneficial and positive effects of this utility model are:

[0009] This utility model discloses a trolley-type gas annealing furnace with zoned temperature control. The left and right positions of the heat insulation wall can be adjusted according to the actual situation such as the size and quantity of the workpiece, thereby changing the volume of the furnace chamber, reducing redundant volume, and improving the utilization rate of the furnace chamber volume.

[0010] This utility model discloses a trolley-type gas-fired annealing furnace with zoned temperature control, which enables the furnace chambers on both sides of the heat insulation wall to operate simultaneously at different annealing temperatures without interfering with each other, thereby improving the operating efficiency of the annealing furnace.

[0011] This utility model discloses a trolley-type gas-fired annealing furnace with zoned temperature control. The burner adopts a multi-modal array, which can adjust the fuel flow and flame intensity according to the combustion conditions in the furnace, thus having strong adaptability and improving the economic efficiency of the annealing furnace operation. Attached Figure Description

[0012] Figure 1 This is one of the front views of this utility model (when the heat insulation wall is one-third of the distance from the left wall surface);

[0013] Figure 2 This is the second front view of the present invention (when the heat insulation wall is at halfway between the left and right sides);

[0014] Figure 3 This is a side view of the present invention;

[0015] Figure 4 This is a top view of the present invention;

[0016] Figure 5 This is a top view of the trolley of this utility model.

[0017] In the diagram: 1 is the furnace chamber, 2 is the furnace door, 3 is the trolley, 4 is the heat insulation wall, 5 is the limit pin, 6 is the slide rail, and 7 is the burner. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, this embodiment includes a furnace chamber 1, a furnace door 2, a trolley 3, a heat insulation wall 4, four limiting pins, two slide rails, and a burner 7. The furnace door is located directly in front of the furnace chamber and can move up and down to open and close. The trolley is located below the furnace chamber and can move back and forth to enter or exit the furnace chamber as needed. The furnace chamber is divided into two parts by the heat insulation wall. Two parallel slide rails, 6-1 and 6-2, are provided on the upper surface of the trolley. The top of the heat insulation wall is installed in the slide rails on the upper surface of the trolley and can slide left and right along the slide rails. The burners are arranged on the side walls on the left and right sides of the furnace chamber, and the burners adopt multiple modular arrays. Two limiting pins are provided on each side of the heat insulation wall, namely limiting pin 5-1, limiting pin 5-2, limiting pin 5-3, and limiting pin 5-4, which can fix the position of the heat insulation wall as required. The top of the heat insulation wall is fixed in the slide rails on the upper surface of the trolley by the four limiting pins.

[0020] Example 1

[0021] When the same batch of workpieces requires the same annealing temperature: 1) Before operating the trolley-type gas annealing furnace, first pull the trolley 3 out of the annealing furnace and place the workpieces on the left or right end of the trolley 3; 2) According to the actual situation such as the size and quantity of the workpieces, move the heat insulation wall 4 on the trolley 3 left and right along the slide 6 to adjust it to a suitable position; 3) Lock the limit pin 5 to fix the position of the heat insulation wall 4. Through this operation, the volume of the furnace chamber 1 on the side where the workpieces are placed can be changed, reducing redundant volume and improving the utilization rate of the furnace chamber volume; 4) Push the trolley 3 into the annealing furnace and close the furnace door 2; 5) According to the actual situation of the workpieces in the furnace, select the number of burners 7 on the side where the workpieces are placed in the annealing furnace to be turned on, and adjust the fuel flow rate and flame intensity according to the combustion conditions in the furnace to meet the annealing requirements.

[0022] Example 2

[0023] When the same batch of workpieces requires different annealing temperatures: 1) Before operating the trolley-type gas annealing furnace, first pull the trolley 3 out of the annealing furnace; 2) Based on the annealing temperature, divide the workpieces to be processed into N groups (in this embodiment, N=2 is used for explanation, and other values ​​of N are similar), and place them on the left and right ends of the trolley 3 respectively; 3) According to the actual situation such as the size and quantity of the workpieces, move the heat insulation wall 4 on the trolley 3 left and right along the slide 6 to adjust it to a suitable position; 4) Lock the limit pin 5 to fix the position of the heat insulation wall 4; 5) Push the trolley 3 into the annealing furnace and close the furnace door 2; 6) According to the actual situation of the workpieces in the left and right sections of the furnace chamber 1, select the number of arrays of the combustion 7 on the left and right walls of the furnace chamber 1 to be opened respectively, and adjust the fuel flow rate and flame intensity to meet the annealing requirements of the workpieces in the left and right sections.

[0024] The above embodiments are only used to illustrate the present utility model and are not limited to the technical solutions described in the present utility model. However, the present utility model is not limited to the specific embodiments described above. Any device or solution that modifies or substitutes the present utility model and is similar to the basic principle of the present utility model is within the protection scope of the present utility model.

Claims

1. A trolley-type gas-fired annealing furnace with zoned temperature control, comprising a furnace chamber, a furnace door, and a trolley, wherein the furnace door is located directly in front of the furnace chamber, and the trolley is located below the furnace chamber, characterized in that, The furnace is divided into two parts by an insulating wall; two parallel slides are provided on the upper surface of the trolley, and the top of the insulating wall is installed in the slides on the upper surface of the trolley; the burners are respectively arranged on the side walls on the left and right sides of the furnace, and the burners adopt multiple modular arrays.

2. The trolley-type gas-fired annealing furnace with zoned temperature control according to claim 1, characterized in that: The top of the heat insulation wall is fixed to the slide rail on the upper surface of the trolley by four limit pins.

3. The trolley-type gas-fired annealing furnace with zoned temperature control according to claim 1, characterized in that: Each burner group has the function of independently controlling fuel flow and flame intensity.

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