A zinc ingot melting furnace
By introducing connecting pipes and a gas extraction mechanism into the zinc ingot melting furnace, the secondary utilization of heat energy and the absorption of harmful gases are realized, solving the problems of gas pollution and heat loss during the zinc ingot melting process, improving the working environment and energy utilization efficiency, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU YINXING ZINC PRODUCTS CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-05
AI Technical Summary
The irritating gases produced during the existing zinc ingot melting process are harmful to the health of workers, and there is a large loss of heat. The open design leads to an increase in the operating environment temperature and low energy utilization efficiency.
Design a zinc ingot melting furnace, comprising a base, a kiln, a steam furnace, and a melting furnace. It achieves secondary utilization of heat energy through a connecting pipe and is equipped with an exhaust mechanism, including an absorption tower, an exhaust pipe, and a cover, to absorb harmful gases and purify the gases using an absorbent.
It effectively absorbs harmful gases, improves the working environment, increases energy efficiency, reduces production costs, and extends equipment life.
Smart Images

Figure CN224327539U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zinc preparation technology, and in particular to a zinc ingot melting furnace. Background Technology
[0002] In the dry process of zinc oxide preparation, zinc ingots are generally heated to form steam, then oxidized, cooled, graded, and settled to obtain zinc oxide particles. A melting furnace is used to melt the zinc ingots, turning the solid zinc ingots into liquid zinc molten liquid. Zinc ingots contain many impurities, and a lot of irritating gases are generated during the melting process, which affects the health of workers. At the same time, the melting furnace is generally designed to facilitate the addition of zinc ingots, but the heat loss is large and the temperature of the operating environment is increased.
[0003] To address these issues, a zinc ingot melting furnace is proposed here. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology and solve the problem of the harmful gas generated during zinc ingot melting to the human body, this utility model provides a zinc ingot melting furnace.
[0005] This utility model is achieved using the following technical solution:
[0006] A zinc ingot melting furnace includes a base, a heat source inside the base, a furnace and a melting furnace on the base, a steam furnace inside the furnace, the melting furnace outside the furnace, and a connecting pipe between the melting furnace and the steam furnace.
[0007] The side of the melting furnace is also equipped with a gas extraction mechanism, which is used to absorb the gas generated during the melting of zinc ingots.
[0008] The extraction mechanism includes an absorption tower, an extraction pipe, and a cover. The bottom of the absorption tower is provided with four support legs. The absorption tower is located on the side of the base. The cover is placed above the melting furnace. One end of the extraction pipe is located at the bottom of the absorption tower, and the other end is located at the top of the cover. The absorption tower and the cover are connected by the extraction pipe.
[0009] The upper surface of the cover is provided with two handles, which are symmetrically arranged on both sides of the cover.
[0010] One end of the connecting pipe connected to the cover is provided with an expansion joint. One end of the expansion joint is fixedly connected to the cover, and the other end is connected to the connecting pipe. The expansion joint can be stretched and contracted.
[0011] The furnace has an inspection port on its front side, and a support arm is located above the inspection port. The support arm is fixed to the front side of the furnace, and the exhaust pipe is engaged with the support arm.
[0012] The base has a step on the front, and the connecting pipe is inclined, with the end of the connecting pipe higher in the melting furnace and the end of the connecting pipe lower in the steam furnace.
[0013] The present invention has the following advantages over the prior art:
[0014] 1. By setting up an exhaust mechanism, the gas generated during zinc ingot melting can be effectively absorbed, improving the working environment and protecting the health of operators. Furthermore, the melting furnace and the steam furnace are connected by a connecting pipe, realizing the secondary utilization of heat energy, improving energy efficiency, and reducing production costs. Finally, the design of setting an expansion joint at the connection between the connecting pipe and the cover, and fixing the exhaust pipe with a support arm, ensures the stability and reliability of the equipment and extends its service life. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0016] Figure 2 This is an exploded three-dimensional structural diagram of this utility model;
[0017] Figure 3 This is a front view of the utility model;
[0018] Figure 4 This is a side view of the present invention;
[0019] In the diagram: 1. Base; 11. Step; 2. Melting furnace; 21. Connecting pipe; 22. Cover; 23. Handle; 3. Steam furnace; 4. Furnace; 41. Oxygen port; 42. Inspection port; 43. Support arm; 44. Absorption pipe; 5. Absorption tower; 51. Support leg; 6. Evacuation pipe; 61. Expansion joint. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0021] The present invention will be further described below with reference to the accompanying drawings.
[0022] like Figures 1 to 4As shown, a zinc ingot melting furnace 2 includes a base 1. The base 1 is equipped with a heat source to provide the heat required for melting zinc ingots. A furnace 4 and a melting furnace 2 are mounted on the base 1. A steam furnace 3 is installed inside the furnace 4. The melting furnace 2 is located outside the furnace 4. A connecting pipe 21 connects the melting furnace 2 and the steam furnace 3. This structural design allows the heat generated by the melting furnace 2 during the melting of zinc ingots to be transferred to the steam furnace 3 through the connecting pipe 21, realizing the secondary utilization of thermal energy and improving energy efficiency. Furthermore, the molten zinc ingot becomes liquid and enters the steam furnace 3 through the connecting pipe 21 for secondary heating to form zinc vapor.
[0023] The side of the melting furnace 2 is also equipped with a gas extraction mechanism, which is used to absorb the gas generated during the melting of zinc ingots.
[0024] The gas extraction mechanism includes an absorption tower 5, an extraction pipe 6, and a casing 22. The bottom of the absorption tower 5 is provided with four support legs 51. The absorption tower 5 is located on the side of the base 1. The casing 22 covers the top of the melting furnace 2. One end of the extraction pipe 6 is located at the bottom of the absorption tower 5, and the other end is located at the top of the casing 22. The absorption tower 5 and the casing 22 are connected by the extraction pipe 6. When zinc ingots are melted in the melting furnace 2 and gas is generated, the gas accumulates in the casing 22 and is drawn into the absorption tower 5 for treatment through the extraction pipe 6, thereby effectively reducing the pollution of the working environment by harmful gases. The absorption tower 5 is usually filled with a specific absorbent, such as an alkaline solution. When zinc ingots are melted in the melting furnace 2 and harmful gases are generated, these gases accumulate in the casing 22. An exhaust fan is installed inside the absorption tower 5. Through the suction action of the exhaust pipe 6, the gas is drawn into the absorption tower 5. Inside the absorption tower 5, the gas comes into full contact with the absorbent, and the harmful substances are absorbed by the absorbent or undergo a chemical reaction, thereby achieving the purpose of purifying the gas and reducing the pollution of the working environment by harmful gases.
[0025] The upper surface of the cover 22 is provided with two handles 23, which are symmetrically arranged on both sides of the cover 22. The handles 23 are designed to facilitate the operation of opening and closing the cover 22, and to perform operations such as feeding zinc ingots and cleaning the inside of the melting furnace 2.
[0026] One end of the connecting pipe 21 connected to the cover 22 is provided with an expansion joint 61. One end of the expansion joint 61 is fixedly connected to the cover 22, and the other end is connected to the connecting pipe 21. The expansion joint 61 can be stretched and contracted. This design allows the connecting pipe 21 to adapt to the positional changes of the cover 22 during opening and closing, avoiding damage to the connecting pipe 21 or loose connection caused by the movement of the cover 22, and ensuring the stability and reliability of heat transfer.
[0027] The furnace 4 has an inspection port 42 on its front side, which facilitates the inspection and maintenance of the equipment inside the furnace 4 by operators. Above the inspection port 42 is a support arm 43, which is fixed to the front side of the furnace 4. The exhaust pipe 6 is engaged with the support arm 43. The support arm 43 provides support and fixation for the exhaust pipe 6, preventing it from sagging or swaying due to its own weight or external factors, thus ensuring its normal operation.
[0028] The base 1 has a step 11 on its front side, and the connecting pipe 21 is inclined, with one end of the connecting pipe 21 being higher than the other end of the connecting pipe 2 in the melting furnace 2 and lower than the other end in the steam furnace 3. This inclined arrangement facilitates the smooth flow of hot air and molten zinc in the melting furnace 2 to the steam furnace 3, improving heat transfer efficiency and reducing heat loss during the transfer process.
[0029] The working principle of this utility model is as follows: When in use, open the cover 22, put the zinc ingot to be melted into the melting furnace 2, then close the cover 22, start the heat source inside the base 1 to heat the melting furnace 2, so that the zinc ingot gradually melts.
[0030] During the zinc ingot melting process, the gas extraction mechanism is activated to draw the gas generated in the melting furnace 2 into the absorption tower 5 through the gas extraction pipe 6 for treatment. At the same time, the heat generated in the melting furnace 2 is transferred to the steam furnace 3 through the connecting pipe 21 to realize the secondary utilization of thermal energy.
[0031] When equipment needs to be inspected or maintained, operators can go up and down the base 1 via the step 11 on the front of the base 1, open the inspection port 42 on the front of the furnace 4, and inspect and repair the equipment inside the furnace 4. At the same time, the cover 22 can also be opened to clean and maintain the inside of the melting furnace 2.
[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A zinc ingot melting furnace, comprising a base (1), wherein a heat source is provided inside the base (1), characterized in that, The base (1) is provided with a furnace (4) and a melting furnace (2). The furnace (4) is equipped with a steam furnace (3). The melting furnace (2) is located outside the furnace (4). A connecting pipe (21) is provided between the melting furnace (2) and the steam furnace (3). The connecting pipe (21) connects the melting furnace (2) and the steam furnace (3). The side of the melting furnace (2) is also provided with a gas extraction mechanism, which is used to absorb the gas generated during the melting of zinc ingots.
2. The zinc ingot melting furnace according to claim 1, characterized in that: The gas extraction mechanism includes an absorption tower (5), a gas extraction pipe (6), and a cover (22). The bottom of the absorption tower (5) is provided with four support legs (51). The absorption tower (5) is located on the side of the base (1). The cover (22) covers the top of the melting furnace (2). One end of the gas extraction pipe (6) is located at the bottom of the absorption tower (5), and the other end is located at the top of the cover (22). The absorption tower (5) and the cover (22) are connected through the gas extraction pipe (6). The upper surface of the cover (22) is provided with two handles (23), which are symmetrically arranged on both sides of the cover (22).
3. A zinc ingot melting furnace according to claim 1, characterized in that: The end of the connecting pipe (21) connected to the cover (22) is provided with a telescopic joint (61). One end of the telescopic joint (61) is fixedly connected to the cover (22), and the other end is connected to the connecting pipe (21). The telescopic joint (61) can be stretched and contracted.
4. A zinc ingot melting furnace according to claim 2, characterized in that: The furnace (4) has an inspection port (42) on its front side, and a support arm (43) is provided above the inspection port (42). The support arm (43) is fixed to the front side of the furnace (4), and the exhaust pipe (6) is engaged with the support arm (43).
5. A zinc ingot melting furnace according to claim 1, characterized in that: The base (1) has a step (11) on the front side, and the connecting pipe (21) is inclined. The connecting pipe (21) is higher at one end of the melting furnace (2) and lower at one end of the steam furnace (3).