A melting device

Abstract

The utility model belongs to hot melting furnace technical field provides a kind of melting device, including hot melting furnace, multiple finned tube;The top of hot melting furnace is equipped with feeding port, and the bottom of hot melting furnace is equipped with discharge pipe, and discharge valve is equipped on the discharge pipe;The inner chamber of hot melting furnace has multiple melting zones arranged from top to bottom successively, and each melting zone is interconnected;The spacing between finned tube in the melting zone gradually decreases from top melting zone to bottom melting zone direction;One side of hot melting furnace is equipped with steam input mechanism, and the other side is equipped with steam exhaust mechanism.The utility model gradually decreases the spacing between finned tube in the melting zone from top melting zone to bottom melting zone direction, so that material can be located close to finned tube position when material is constantly falling, can let material better absorb heat and become liquid faster, improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of hot melt furnace technology, specifically a melting device. Background Technology

[0002] Chemical raw materials are major components of common everyday items. They are inexpensive, highly malleable, aesthetically pleasing, and possess excellent corrosion resistance, making them a crucial part of the basic chemical industry. Chemical raw materials used in chemical production often exist in solid, liquid, and gaseous forms.

[0003] The first step in processing solid materials (such as blocky or granular paraffin, stearic acid, resin, etc.) is often hot melting. Hot melting facilitates the addition of various additives to chemical raw materials. In existing technologies, the hot melting furnace has multiple pipes arranged in a matrix. When solid materials need to be hot melted, the solid materials are first put into the inlet at the top of the hot melting furnace. Then, high-temperature steam is introduced into these pipes. Heat energy is transferred to the material through the pipe walls. The solid materials gradually absorb heat, and the temperature continues to rise until it reaches its melting point, thereby realizing the heating and melting process of the material. However, since the pipes are arranged in a matrix in the hot melting furnace, the spacing between the pipes is the same. During the hot melting process of solid materials, the volume will gradually decrease, causing the solid materials to gradually move away from the pipe wall, resulting in insufficient heating and reduced heat absorption. This leads to a decrease in the heating efficiency of the solid materials and a prolongation of the melting time. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems and provide a melting device. This device gradually reduces the spacing between the finned tubes in the melting area from the top melting area to the bottom melting area. In this way, the material can be located close to the finned tubes as it falls, allowing the material to absorb heat better and turn into liquid faster, thus improving work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A melting device includes a hot melt furnace and multiple finned tubes; the hot melt furnace has a feeding port at the top and a discharge pipe at the bottom, with a discharge valve on the discharge pipe; The inner cavity of the hot melt furnace has multiple layers of melting zones arranged sequentially from top to bottom. Each melting zone is interconnected. Multiple finned tubes are arranged in multiple rows at equal intervals in each melting zone to provide heat for melting the material. The spacing between the finned tubes in the melting region gradually decreases from the top melting region to the bottom melting region; The hot melt furnace is provided with a steam input mechanism on one side and a steam discharge mechanism on the other side; the air inlet end of the finned tube is connected to the steam input mechanism, and the air outlet end of the finned tube is connected to the steam discharge mechanism; the steam input mechanism is used to introduce steam into the finned tube, and the steam discharge mechanism is used to discharge the steam from the finned tube.

[0006] In the above-mentioned melting device, the melting zone consists of two layers.

[0007] In the aforementioned melting device, there are three rows of finned tubes in both the top and bottom melting zones.

[0008] In the above-mentioned melting device, in the melting area of ​​the top layer, the positions of the first row of finned tubes and the second row of finned tubes are misaligned, and the positions of the first row of finned tubes and the third row of finned tubes are aligned.

[0009] In the aforementioned melting apparatus, in the bottom melting region, the positions of the first row of finned tubes and the second row of finned tubes are misaligned, and the positions of the first row of finned tubes and the third row of finned tubes are aligned.

[0010] In one of the above-mentioned melting devices, the steam input mechanism includes a steam input pipe and a first outer shell connected to the side wall of the hot melting furnace. The first outer shell and the side wall of the hot melting furnace cooperate to form a sealed first chamber. One end of the steam input pipe is connected to an external steam generator, and the other end is connected to the first chamber. The steam input pipe is equipped with a valve and a pressure gauge. The air inlet end of the finned tube is connected to the first chamber.

[0011] In the above-mentioned melting device, the steam discharge mechanism includes a discharge pipe and a second outer shell connected to the side wall of the hot melting furnace. The second outer shell and the side wall of the hot melting furnace cooperate to form a sealed second chamber. One end of the discharge pipe is connected to the second chamber, and a first manual valve is provided on the discharge pipe.

[0012] The above-mentioned melting device also includes a connecting pipe, the U-shaped connecting pipe having both ends connected to the discharge pipe, and a second manual valve and a drain valve provided along its length; the first manual valve is located between the two ends of the connecting pipe.

[0013] In one of the above-mentioned melting devices, the side wall of the hot melting furnace is provided with an observation window. Compared with the prior art, the beneficial effects of this utility model are: In this invention, after the material is fed into the top of the hot melt furnace through the feeding port, the volume of the material gradually decreases from large to small, falling from the top melting area to the bottom melting area. Since the spacing between the finned tubes in the melting area gradually decreases from the top melting area to the bottom melting area, the material can be located close to the finned tubes as it falls. In addition, the fins on the finned tubes allow the material to absorb heat better and turn into liquid faster, thus improving work efficiency. Attached Figure Description

[0014] Figure 1 This is one of the structural schematic diagrams of a melting device according to Example 1; Figure 2 This is a second schematic diagram of the structure of a melting device according to Example 1; The figure labels for each figure are as follows: 1. Hot melt furnace; 11. Feed port; 12. Discharge pipe; 13. Melting zone; 2. Finned tube; 21. Air inlet; 22. Air outlet; 3. Steam input mechanism; 31. First outer shell; 32. First chamber; 33. Pressure gauge; 34. Steam input pipe; 35. Valve; 4. Steam discharge mechanism; 41. Second outer shell; 42. Second chamber; 43. Discharge pipe; 421. First manual valve; 5. Connecting pipe; 51. Second manual valve; 52. Drain valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 refer to Figures 1-2 A melting device includes a hot melt furnace 1 and multiple finned tubes 2; the hot melt furnace 1 is provided with a feeding port 11 at the top and a discharge pipe 12 at the bottom, and a discharge valve (not shown in the figure) is provided on the discharge pipe 12. The inner cavity of the hot melt furnace 1 has multiple melting zones 13 arranged from top to bottom. Each melting zone 13 is interconnected. Multiple finned tubes 2 are arranged at equal intervals in each melting zone 13 to form multiple rows of heat sources to provide heat for the melting of materials. The spacing between the finned tubes 2 in the melting region 13 gradually decreases from the top melting region 13 to the bottom melting region 13. The hot melt furnace 1 is provided with a steam input mechanism 3 on one side and a steam discharge mechanism 4 on the other side; the air inlet 21 of the finned tube 2 is connected to the steam input mechanism 3, and the air outlet 22 of the finned tube 2 is connected to the steam discharge mechanism 4; the steam input mechanism 3 is used to introduce steam into the finned tube 2, and the steam discharge mechanism 4 is used to discharge the steam in the finned tube 2.

[0017] In this design, workers feed the material into the inlet 11, and then steam is introduced into each finned tube 2 through the steam input mechanism 3. The heat is transferred to the material through the finned tubes 2, and the material absorbs the heat and gradually melts. The volume of the material decreases as it falls from the top melting area 13 to the bottom melting area 13, and finally becomes liquid in the bottom melting area 13. Once all the material has become liquid, the worker closes the steam input mechanism 3, stops feeding steam into the finned tubes 2, and opens the discharge valve on the discharge pipe 12 to discharge the liquid material. In this way, the material can absorb heat better and become liquid faster, thus improving work efficiency.

[0018] The discharge valve is electrically connected to the PLC system of the external device. The discharge valve can also be opened manually. The PLC system of the external device is a PLC system well known to those skilled in the art. The electrical connection is an electrical connection well known to those skilled in the art, or it can be a wiring harness connection.

[0019] Preferably, the melting region 13 has two layers; There are three rows of finned tubes 2 in both the top and bottom melting zones 13. The inner cavity of the hot melt furnace 1 is set into two melting zones 13, and three rows of finned tubes 2 are set in each layer, thereby increasing the heat for melting solid materials. Generally speaking, after the material is fed, the worker can also cover the feeding port 11 with the external cover before introducing steam, which can reduce heat loss.

[0020] In this embodiment, in the melting region 13 of the top layer, the positions of the first row of finned tubes 2 and the second row of finned tubes 2 are misaligned, and the positions of the first row of finned tubes 2 and the third row of finned tubes 2 are aligned. In the bottom melting zone 13, the positions of the first row of finned tubes 2 and the second row of finned tubes 2 are misaligned, and the positions of the first row of finned tubes 2 and the third row of finned tubes 2 are aligned.

[0021] Specifically, the first row of finned tubes 2 on the top layer is offset from the second row of finned tubes 2, and the third row of finned tubes 2 is aligned with the first row. This allows the solid material to get closer to the finned tubes 2 and absorb heat better. Similarly, the arrangement of the finned tubes 2 on the bottom layer is the same as that on the top layer, all to allow the solid material to get closer to the finned tubes 2 and absorb heat better.

[0022] In practical applications, the steam input mechanism 3 includes a steam input pipe 34 and a first outer shell 31 connected to the side wall of the hot melt furnace 1. The first outer shell 31 and the side wall of the hot melt furnace 1 cooperate to form a sealed first chamber 32. One end of the steam input pipe 34 is connected to an external steam generator, and the other end is connected to the first chamber 32. The steam input pipe 34 is equipped with a valve 35 and a pressure gauge 33. The air inlet 21 of the finned tube 2 is connected to the first chamber 32.

[0023] The steam discharge mechanism 4 includes a discharge pipe 43 and a second outer shell 41 connected to the side wall of the hot melt furnace 1. The second outer shell 41 and the side wall of the hot melt furnace 1 cooperate to form a sealed second chamber 42. One end of the discharge pipe 43 is connected to the second chamber 42, and a first manual valve 421 is provided on the discharge pipe 43; Furthermore, when steam is to be introduced, valve 35 is opened, and steam is generated by an external steam generator. The generated steam enters the first chamber 32 through the steam input pipe 34. Since one end of the finned tube 2 is connected to the first chamber 32, the steam in the first chamber 32 will enter from the air inlet 21 end of each finned tube 2, thus providing heat for the melting of the material. When steam is to be discharged, the first manual valve 421 can be opened, and the steam will be discharged through the discharge pipe 43.

[0024] In this embodiment, a connecting pipe 5 is also included. The connecting pipe 5 has a U-shaped structure, and both ends of the connecting pipe 5 are connected to the discharge pipe 43. A second manual valve 51 and a drain valve 52 are provided on the connecting pipe 5 along its length direction. The first manual valve 421 is located between the two ends of the connecting pipe 5.

[0025] Specifically, to drain condensate, the second manual valve 51 and the steam trap 52 can be opened. In this way, the condensate will first enter the connecting pipe 5 from one end of the drain pipe 43, and then return to the drain pipe 43 from the other end of the connecting pipe 5, thus draining the condensate. This method can drain the condensate without releasing steam. When steam needs to be released, the first manual valve can be opened.

[0026] Preferably, the side wall of the hot melt furnace 1 is provided with an observation window. The observation window is used to facilitate workers to observe the melting status of the materials inside the hot melt furnace 1.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of the present utility model, and these improvements or modifications should also be considered within the protection scope of the present utility model.

Claims

1. A melting device, characterized by The hot melting furnace comprises a hot melting furnace, a plurality of finned tubes; the top of the hot melting furnace is provided with a feeding port, and the bottom of the hot melting furnace is provided with a discharging pipe, and the discharging pipe is provided with a discharging valve; The inner cavity of the hot melting furnace is provided with a plurality of melting areas arranged from top to bottom, and each of the melting areas is communicated with each other, and a plurality of finned tubes are arranged in each melting area to form a plurality of rows of heat sources for providing heat for melting of materials; The spacing between the finned tubes in the melting area gradually decreases from the top melting area to the bottom melting area; One side of the hot melting furnace is provided with a steam input mechanism, and the other side is provided with a steam discharge mechanism; the air inlet end of the finned tube is communicated with the steam input mechanism, and the air outlet end of the finned tube is communicated with the steam discharge mechanism; the steam input mechanism is used for inputting steam into the finned tube, and the steam discharge mechanism is used for discharging steam in the finned tube.

2. A melting apparatus according to claim 1, wherein The melting area is two layers.

3. A melting apparatus according to claim 2, wherein There are three rows of finned tubes in the melting area of the top layer and the bottom layer.

4. A melting apparatus according to claim 3, wherein In the melting area of the top layer, the positions of the finned tubes of the first row and the finned tubes of the second row are staggered, and the positions of the finned tubes of the first row and the finned tubes of the third row are aligned.

5. A melting apparatus according to claim 3, wherein In the melting area of the bottom layer, the positions of the finned tubes of the first row and the finned tubes of the second row are staggered, and the positions of the finned tubes of the first row and the finned tubes of the third row are aligned.

6. A melting apparatus according to claim 1, wherein The steam input mechanism comprises a steam input pipe, a first shell connected to the side wall of the hot melting furnace, and a first chamber formed by cooperation of the first shell and the side wall of the hot melting furnace; One end of the steam input pipe is connected with an external steam generator, and the other end is communicated with the first chamber, and a valve and a pressure gauge are arranged on the steam input pipe; the air inlet end of the finned tube is communicated with the first chamber.

7. A melting apparatus according to claim 1, wherein The steam discharge mechanism comprises a discharge pipe and a second shell connected to the side wall of the hot melting furnace, and a second chamber formed by cooperation of the second shell and the side wall of the hot melting furnace; One end of the discharge pipe is communicated with the second chamber, and a first manual valve is arranged on the discharge pipe.

8. A melting apparatus according to claim 7, wherein A connecting pipe is further arranged, both ends of the U-shaped connecting pipe are communicated with the discharge pipe, a second manual valve and a drain valve are arranged on the connecting pipe along the length direction of the connecting pipe; the first manual valve is located between the two end portions of the connecting pipe.

9. A melting apparatus according to claim 1, wherein The side wall of the hot melting furnace is provided with an observation window.

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