Gas kiln capable of utilizing kiln smoke waste heat

Abstract

The utility model relates to the technical field of gas kilns, and discloses a gas kiln capable of utilizing kiln smoke waste heat, which comprises a kiln body, a flue is arranged at the top of the kiln body, a left side piece is arranged at the output end of the flue, and a gas inlet pipe is arranged at the top of the left side piece. Smoke can be introduced into the left side part and then penetrate through the round pipe to enter the right side part, at the moment, the smoke enters the inner pipe, the smoke heat on the outer wall of the inner pipe is used for heating the smoke, then the smoke enters the flowing cavity through the connecting pipe, and at the moment, the smoke flows in the flowing cavity and is matched with the heat of the smoke outside the flowing cavity for reheating; therefore, the kiln smoke of the gas kiln is used for preheating the gas, and the preheated gas can improve the combustion temperature, so that the gas is easier to ignite, the energy loss during combustion is reduced, the heat value and the combustion efficiency of the gas are improved, and the use of the gas kiln is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas kilns, in particular to a gas kiln that can utilize the waste heat of kiln smoke. Background Technique

[0002] A gas kiln is a kiln furnace device that uses gas as fuel and is used for high-temperature firing, heating, drying and other processes. As a clean and efficient energy source, gas is widely used in industrial production. The gas kiln provides the required heat energy by burning gas. The gas kiln usually includes a gas combustion area, a heating area, a cooling area, etc. The gas generates heat after combustion, and then transfers the heat to the materials in the kiln through a heat exchange device to complete the corresponding process. The gas kiln has the advantages of high thermal efficiency, flexible operation, low pollution, etc., and is suitable for a variety of industries, such as ceramic product production, glass processing, metallurgical sintering and other fields;

[0003] In the existing gas kiln, a part of the heat is contained in the flue gas during use. When the flue gas is directly discharged, it is easy to cause heat waste of the gas kiln, resulting in energy waste during the use of the gas kiln, reducing the energy utilization efficiency and increasing the use cost of gas; at the same time, there are dust particles and other particles in the flue gas, and directly discharging the flue gas is easy to cause an increase in dust particles near the discharge site, which is easy to affect the respiratory health of the staff. Therefore, we propose a gas kiln that can utilize the waste heat of kiln smoke. Content of the Utility Model

[0004] The purpose of the utility model is to provide a gas kiln that can utilize the waste heat of kiln smoke, so as to solve the problems of easy heat waste and the presence of dust particles and other particles in the flue gas mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A gas kiln that can utilize the waste heat of kiln smoke, including:

[0006] A kiln body, a flue is arranged at the top of the kiln body, a left-side member is arranged at the output end of the flue, a gas outlet pipe is arranged at the top of the left-side member, a flow cavity is arranged inside the left-side member, a round pipe penetrates through the side wall of the flow cavity, and a partition strip is arranged inside the flow cavity;

[0007] A right-side member, the right-side member is arranged on the side wall of the left-side member, a gas inlet pipe is arranged at the rear of the right-side member, an internal pipe is arranged inside the right-side member, a connecting pipe is arranged at the output end of the internal pipe, a partition plate is arranged on the left side of the internal pipe, and a smoke exhaust port is arranged on the side wall of the right-side member;

[0008] A detachable plate, the detachable plate is fitted to the side wall of the left-side member, a small retaining net and a large retaining net are fixedly connected to the rear of the detachable plate, a fixing member is arranged on the side wall of the detachable plate, and a locking member fixedly connected to the right-side member is arranged on the side wall of the fixing member.

[0009] Preferably, the connecting pipe is fitted to the top of the flow chamber.

[0010] Preferably, the large baffle is fitted to the left side wall of the flow chamber.

[0011] Preferably, the small baffle is fitted to the bottom of the partition plate.

[0012] Preferably, the locking member is fixedly connected to the side wall of the right member.

[0013] Preferably, a support block is provided at the bottom of the left member.

[0014] Preferably, the support block is fixedly connected to the top of the kiln body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By providing a left member with a flow chamber and a right member with an internal pipe, the present utility model can allow flue gas to enter the left member and then pass through the circular pipe into the right member. At this time, the fuel gas enters the internal pipe, and the heat of the flue gas on the outer wall of the internal pipe is used to heat the fuel gas. Then, the fuel gas enters the flow chamber through the connecting pipe. At this time, the fuel gas flows inside the flow chamber and is reheated in cooperation with the heat of the flue gas outside the flow chamber, thereby preheating the fuel gas using the kiln flue gas of the fuel gas kiln. Preheating the fuel gas can increase the combustion temperature, make the fuel gas easier to ignite, reduce the energy loss during combustion, improve the calorific value and combustion efficiency of the fuel gas, and is beneficial to the use of the fuel gas kiln.

[0017] 2. When the flue gas passes through the circular pipe, the large baffle can intercept particulate matters such as dust in the flue gas. Then, when the flue gas passes through the circular pipe and enters the inside of the right member through the bottom of the partition plate, the flue gas will be filtered again by the small baffle. Thus, while preheating the fuel gas, the dust in the flue gas can be filtered and intercepted, thereby reducing the dust content in the discharged flue gas and avoiding the problem of blockage of the left member and the right member due to dust in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of the left member of the present utility model;

[0020] Figure 3 is a schematic diagram of the internal structure of the right member of the present utility model;

[0021] Figure 4 is a schematic diagram of the internal structure of the flow chamber of the present utility model;

[0022] Figure 5Schematic diagram of the separation structure of the fixing part and the detachable plate of the present utility model.

[0023] In the figure: 100, kiln body; 110, flue; 120, left part; 121, gas outlet pipe; 130, flow chamber; 131, round pipe; 132, partition strip; 140, support block; 200, right part; 201, smoke exhaust port; 202, connecting pipe; 210, gas inlet pipe; 220, internal pipe; 230, partition board; 300, detachable plate; 310, fixing part; 311, locking part; 320, small retaining net; 330, large retaining net. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] Please refer to Figures 1 - 5 , a gas kiln that can utilize the waste heat of kiln smoke in the figure includes:

[0027] A flue 110 is provided at the top of the kiln body 100. The kiln body 100 is a common gas kiln, which is prior art. The output end of the flue 110 is provided with a left part 120. The top of the left part 120 is provided with a gas outlet pipe 121. A flow chamber 130 that cooperates with the gas outlet pipe 121 is provided inside the left part 120. A round pipe 131 penetrates through the side wall of the flow chamber 130. The round pipe 131 and the flow chamber 130 are made of common copper plates on the market. A partition strip 132 is provided inside the flow chamber 130;

[0028] The right part 200 is provided on the side wall of the left part 120. A gas inlet pipe 210 is provided at the rear of the right part 200. An internal pipe 220 is provided inside the right part 200. The internal pipe 220 is formed by welding common square copper pipes. The output end of the internal pipe 220 is provided with a connecting pipe 202. A partition board 230 is provided on the left side of the internal pipe 220. A smoke exhaust port 201 is provided on the side wall of the right part 200. The flue gas flows backward inside the right part 200 and then passes through the gap at the rear of the internal pipe 220 and then flows forward and is discharged from the smoke exhaust port 201;

[0029] The detachable plate 300 cooperates with the side wall of the left part 120;

[0030] In some embodiments, an airtight rubber gasket commonly found in the market is provided on the outer wall of the detachable plate 300. When the small dust screen 320 and the large dust screen 330 intercept dust in the flue gas, the dust adheres to the outer walls of the small dust screen 320 and the large dust screen 330. After the detachable plate 300 is disassembled, the small dust screen 320 and the large dust screen 330 can be removed from the inside of the right-side member 200 and the left-side member 120, so that the small dust screen 320 and the large dust screen 330 can be cleaned. The small dust screen 320 and the large dust screen 330 are made of stainless steel dust screens commonly found in the market.

[0031] A small dust screen 320 and a large dust screen 330 are fixedly connected to the rear side of the detachable plate 300. A fixing member 310 is provided on the side wall of the detachable plate 300, and a locking member 311 fixedly connected to the right-side member 200 is provided on the side wall of the fixing member 310. The locking member 311 is made of a stainless steel ring commonly found in the market, and a bolt is provided on its side wall. Tightening the bolt can press the fixing member 310 to lock the detachable plate 300.

[0032] Specifically, the connecting pipe 202 is fitted to the top of the flow cavity 130.

[0033] Further, the large dust screen 330 is fitted to the left side wall of the flow cavity 130.

[0034] Still further, the small dust screen 320 is fitted to the bottom of the partition plate 230.

[0035] Still further, the locking member 311 is fixedly connected to the side wall of the right-side member 200.

[0036] It is worth noting that a support block 140 is provided at the bottom of the left-side member 120.

[0037] It is worth noting that the support block 140 is fixedly connected to the top of the kiln body 100.

[0038] In addition, the above-mentioned electrical components and electrical equipment all use an external power supply. The circuits, electronic components and modules involved in the present utility model are all prior arts, and those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method either;

[0039] Working principle: By setting the left part 120 with a flow chamber 130 and the right part 200 with an inner tube 220, flue gas can be introduced into the left part 120 and then pass through the circular tube 131 into the right part 200. At this time, fuel gas enters the inner tube 220, and the heat of the flue gas on the outer wall of the inner tube 220 is used to heat the fuel gas. Then the fuel gas enters the flow chamber 130 through the connecting pipe 202. At this time, the fuel gas flows inside the flow chamber 130 and is reheated in cooperation with the heat of the flue gas outside the flow chamber 130, so as to preheat the fuel gas by using the kiln flue gas of the fuel gas kiln. Preheating the fuel gas can increase the combustion temperature, make the fuel gas easier to ignite, reduce the energy loss during combustion, improve the calorific value and combustion efficiency of the fuel gas, and is beneficial to the use of the fuel gas kiln. At the same time, when the flue gas passes through the circular tube 131, the large baffle 330 can intercept particulate matters such as dust in the flue gas. Then when the flue gas passes through the circular tube 131 and enters the inside of the right part 200 through the bottom of the partition 230, the flue gas will be filtered again by the small baffle 320, so that the dust in the flue gas can be filtered and intercepted while preheating the fuel gas, thereby reducing the dust content in the discharged flue gas.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas kiln that can utilize the waste heat of kiln smoke, characterized in that: include: A kiln body (100), wherein a flue (110) is arranged on the top of the kiln body (100), a left side member (120) is arranged at the output end of the flue (110), a gas outlet pipe (121) is arranged on the top of the left side member (120), a flow cavity (130) is arranged inside the left side member (120), a round tube (131) penetrates the side wall of the flow cavity (130), and a partition bar (132) is arranged inside the flow cavity (130); A right side member (200), the right side member (200) being arranged on the side wall of the left side member (120), a gas inlet pipe (210) being arranged on the rear side of the right side member (200), an internal pipe (220) being arranged inside the right side member (200), a connecting pipe (202) being arranged at the output end of the internal pipe (220), a partition plate (230) being arranged on the left side of the internal pipe (220), and a smoke exhaust port (201) being arranged on the side wall of the right side member (200); A detachable plate (300) is matched with the side wall of the left side member (120), a small blocking net (320) and a large blocking net (330) are fixedly connected to the rear side of the detachable plate (300), a fixing member (310) is arranged on the side wall of the detachable plate (300), and a locking member (311) is arranged on the side wall of the fixing member (310) and is fixedly connected to the right side member (200).

2. A gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 1, characterized in that: The connecting tube (202) is fitted into the top of the flow chamber (130).

3. The gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 1, characterized in that: The large baffle (330) is matched with the left side wall of the flow chamber (130).

4. The gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 1, characterized in that: The small blocking net (320) is matched with the bottom of the partition (230).

5. The gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 1, characterized in that: The locking member (311) is fixedly connected to the side wall of the right side member (200).

6. The gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 1, characterized in that: A supporting block (140) is provided at the bottom of the left side member (120).

7. A gas-fired kiln capable of utilizing the residual heat of kiln smoke according to claim 6, characterized in that: The support block (140) is fixed to the top of the kiln body (100).

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