Energy-saving domestic ceramic kiln

Abstract

The utility model relates to the technical field of ceramic kilns, and discloses an energy-saving domestic ceramic kiln which comprises a bottom frame, a kiln body is fixedly installed on the top of the bottom frame, the kiln body comprises a preheating section, a high-temperature section and a cooling section, and the preheating section, the high-temperature section and the cooling section are sequentially arranged from left to right. A waste heat recovery mechanism is arranged in the kiln main body; the waste heat recovery mechanism comprises four first heat insulation plates, an air inlet pipe and a heat dissipation pipe, air in an air inlet bin is pumped away through a pressurizing air pump, then air in the heat dissipation pipe is pumped away, air flow passing through the heat dissipation pipe can be pumped into an air outlet bin through the pressurizing air pump, and after air flow in the air outlet bin enters the air outlet pipe, the air flow in the air outlet bin enters the heat dissipation pipe. When the air flow passes through the heat dissipation pipe, the air flow exchanges heat with the air in the preheating section, so that the heat which can be damaged is low when the air flow passes through the air flow circulating component.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic kilns, in particular to an energy-saving daily-use ceramic kiln. Background Art

[0002] The daily-use ceramic kilns used in the ceramic industry are generally tunnel kilns. The kiln body can be divided into preheating section, high-temperature section and cooling section according to the different temperatures in the kiln. The temperature requirements of each section are quite different, especially the temperature of the high-temperature section is much higher than that of the preheating section and the cooling section. The cooling section is for gradually cooling down the ceramics, while the preheating section is for gradually heating up the ceramics. Some daily-use ceramic kilns will adopt waste heat recovery systems when designing, to recover the heat emitted by the cooling section and then reuse it in the preheating section. However, most of them do not consider the compatibility with ceramic kilns when designing waste heat recovery systems. In the design, the main heat exchange structure is often set outside the ceramic kiln. On the one hand, it will cause the waste heat recovery and reuse journey to be too long, and on the other hand, it will require high thermal insulation performance of the heat exchange structure. Utility Model Content

[0003] The purpose of the utility model is to provide an energy-saving daily-use ceramic kiln to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the utility model provides the following technical solutions: an energy-saving daily-use ceramic kiln, comprising a bottom frame, a kiln body is fixedly installed on the top of the bottom frame, the kiln body comprises a preheating section, a high temperature section, and a cooling section, the preheating section, the high temperature section, and the cooling section are arranged in sequence from left to right, and a waste heat recovery mechanism is arranged inside the kiln body;

[0005] The waste heat recovery mechanism includes a heat insulation plate 1, an air intake pipe, and a heat dissipation pipe. There are four heat insulation plates 1, which are respectively installed on the inner walls of the front and back sides of the preheating section and the cooling section. The air intake pipe is fixedly arranged in the cooling section. An air intake hole is opened on the outer wall of the air intake pipe on one side facing the center of the cooling section. The left end of the air intake pipe is connected with a connecting pipe 1. The heat dissipation pipe is fixedly installed in the preheating section. The right end of the heat dissipation pipe is connected with a connecting pipe 2. A heat insulation pipe is connected between the connecting pipe 2 and the connecting pipe 1. The heat insulation pipe is arranged in the high temperature section. The left end of the heat dissipation pipe is connected with an airflow circulation component.

[0006] Furthermore, the air flow circulation component includes an air inlet bin, an air outlet bin, and a booster air pump. The air inlet bin is fixedly installed in the preheating section, the interior of the air inlet bin is connected to the left end of the heat dissipation pipe, the air outlet bin is fixedly installed on the air inlet bin, and the booster air pump is fixedly installed on the outer wall of the kiln body. The air outlet end of the booster air pump is connected to the interior of the air outlet bin through a pipeline, and the air inlet end of the booster air pump is connected to the interior of the air inlet bin through a pipeline. The right side of the air outlet bin is connected with an air outlet pipe, the air outlet pipe extends into the preheating section, and the air outlet pipe and the heat dissipation pipe are staggered, and an air outlet hole is opened on the side of the air outlet pipe facing the center of the preheating section.

[0007] Furthermore, insulation bricks are arranged between the high temperature section and the preheating section and between the high temperature section and the cooling section.

[0008] Furthermore, the air inlet pipe and the heat dissipation pipe are provided in two groups, and are respectively close to the front inner wall and the back inner wall of the kiln body.

[0009] Furthermore, an insulation bin is fixedly installed on the inner wall of the high-temperature section, and the insulation bin covers connecting pipe one, the insulation pipe, and connecting pipe two. An insulation board three is fixedly installed on the top inner wall of the insulation bin, and the gaps between the insulation bin and connecting pipe one, the insulation pipe, and connecting pipe two are filled with insulation fillers.

[0010] Furthermore, a second heat insulation board is fixedly mounted on the outer wall of the kiln body, and the second heat insulation board is arranged between the booster air pump and the kiln body. A heat conducting sheet is fixedly mounted on the outer wall of the air inlet pipe.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The air in the heat dissipation pipe is drawn away through the air circulation component, and then the hot air in the cooling section is drawn into the air intake pipe. The hot air in the air intake pipe passes through the connecting pipe 1, the heat insulation pipe, and the connecting pipe 2 in sequence and enters the heat dissipation pipe, and then exchanges heat with the heat dissipation pipe. The air in the preheating section exchanges heat with the heat dissipation pipe to achieve the purpose of transferring the heat in the cooling section to the preheating section, thereby improving the utilization rate of energy. Because the air intake pipe and the heat dissipation pipe as the main heat exchange structure are arranged in the main body of the kiln, there is no need to insulate the air intake pipe and the heat dissipation pipe, and the heat exchange stroke is shorter;

[0013] 2. The air in the air inlet bin is pumped out by a booster air pump, and then the air in the heat dissipation pipe is pumped out, so that the airflow passing through the heat dissipation pipe can be pumped into the air outlet bin by the booster air pump. After the airflow in the air outlet bin enters the air outlet pipe, it flows from the air outlet hole to the preheating section. Because the airflow has exchanged heat with the air in the preheating section when flowing through the heat dissipation pipe, the heat that can be damaged when passing through the air circulation components is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a structural schematic diagram of the left side view of the kiln main body of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the waste heat recovery mechanism of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the air intake pipe and the heat conducting sheet of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the airflow circulation component of the utility model.

[0019] In the figure: 1. bottom frame; 2. kiln body; 201. preheating section; 202. high temperature section; 203. cooling section; 3. waste heat recovery mechanism; 301. insulation board one; 302. air inlet pipe; 3021. air inlet hole; 303. connecting pipe one; 304. insulation pipe; 305. connecting pipe two; 306. heat dissipation pipe; 307. air circulation component; 3071. air inlet bin; 3072. air outlet bin; 3073. air outlet pipe; 30731. air outlet hole; 3074. booster pump; 4. insulation brick; 5. insulation board two; 6. insulation bin; 7. insulation board three; 8. insulation filler; 9. heat conductive sheet. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: an energy-saving daily-use ceramic kiln, comprising a bottom frame 1, a kiln body 2 is fixedly installed on the top of the bottom frame 1, the kiln body 2 comprises a preheating section 201, a high temperature section 202, and a cooling section 203, the preheating section 201, the high temperature section 202, and the cooling section 203 are arranged in sequence from left to right, and a waste heat recovery mechanism 3 is arranged inside the kiln body 2;

[0022] The waste heat recovery mechanism 3 includes a heat insulation board 301, an air intake pipe 302, and a heat dissipation pipe 306. Four heat insulation boards 301 are provided, and are respectively installed on the inner walls of the front and back sides of the preheating section 201 and the cooling section 203. The air intake pipe 302 is fixedly arranged in the cooling section 203. An air intake hole 3021 is opened on the outer wall of the air intake pipe 302 on one side facing the center of the cooling section 203. The left end of the air intake pipe 302 is connected to a connecting pipe 303. The heat dissipation pipe 306 is fixedly arranged on the preheating section 201. In the section 201, the right end of the heat dissipation pipe 306 is connected to the second connecting pipe 305, and the second connecting pipe 305 and the first connecting pipe 303 are connected to the heat insulation pipe 304, and the heat insulation pipe 304 is arranged in the high temperature section 202. The left end of the heat dissipation pipe 306 is connected to the air circulation component 307, and the air in the heat dissipation pipe 306 is sucked away by the air circulation component 307, and then the hot air in the cooling section 203 is sucked into the intake pipe 302, and the hot air in the intake pipe 302 is successively After passing through the connecting pipe 1 303, the heat insulation pipe 304, and the connecting pipe 2 305, it enters the heat dissipation pipe 306, and then exchanges heat with the heat dissipation pipe 306. The air in the preheating section 201 exchanges heat with the heat dissipation pipe 306, so as to achieve the purpose of transferring the heat in the cooling section 203 to the preheating section 201, thereby improving the utilization rate of energy. Because the air intake pipe 302 and the heat dissipation pipe 306 as the main heat exchange structure are arranged in the kiln body 2, there is no need to , the heat dissipation pipe 306 is insulated, and the heat exchange stroke is shorter. The connecting pipe 1 303 and the connecting pipe 2 305 are provided to connect the intake pipe 302, the heat dissipation pipe 306 and the insulation pipe 304. The good insulation performance of the insulation pipe 304 can effectively reduce the heating effect of the heat in the high-temperature section 202 on the air flow in the insulation pipe 304, and avoid the air flow temperature in the insulation pipe 304 being higher than the air flow temperature in the intake pipe 302, thereby making it impossible to recover the excess heat in the cooling section 203;

[0023] The airflow circulation component 307 includes an air inlet bin 3071, an air outlet bin 3072, and a booster air pump 3074. The air inlet bin 3071 is fixedly installed in the preheating section 201. The interior of the air inlet bin 3071 is connected to the left end of the heat dissipation pipe 306. The air outlet bin 3072 is fixedly installed on the air inlet bin 3071. The booster air pump 3074 is fixedly installed on the outer wall of the kiln body 2. The air outlet end of the booster air pump 3074 is connected to the interior of the air outlet bin 3072 through a pipeline. The air inlet end of the booster air pump 3074 is connected to the interior of the air inlet bin 3071 through a pipeline. The right side of the air outlet bin 3072 is connected with an air outlet pipe 3073. The air outlet pipe 3073 extends into the preheating section 201, and the air outlet pipe 3073 extends into the preheating section 201. The air pipes 3073 and the heat dissipation pipes 306 are arranged in a staggered manner. An air outlet hole 30731 is provided on one side of the air outlet pipe 3073 toward the center of the preheating section 201. The air in the air inlet bin 3071 is pumped out by the booster air pump 3074, and then the air in the heat dissipation pipe 306 is pumped out, so that the airflow passing through the heat dissipation pipe 306 can be pumped into the air outlet bin 3072 by the booster air pump 3074. After the airflow in the air outlet bin 3072 enters the air outlet pipe 3073, it flows into the preheating section 201 from the air outlet hole 30731. Because the airflow has exchanged heat with the air in the preheating section 201 when flowing through the heat dissipation pipe 306, the heat that can be damaged when passing through the airflow circulation component 307 is relatively low.

[0024] Insulation bricks 4 are provided between the high temperature section 202 and the preheating section 201 and between the high temperature section 202 and the cooling section 203 to separate the preheating section 201, the high temperature section 202 and the cooling section 203, thereby facilitating the control of the temperature of each section;

[0025] Two groups of air inlet pipes 302 and heat dissipation pipes 306 are provided, and are respectively close to the front inner wall and the back inner wall of the kiln body 2, so as to increase the heat exchange structure and improve the recovery effect of the excess heat in the cooling section 203;

[0026] The inner wall of the high temperature section 202 is fixedly installed with an insulation bin 6, which covers the connecting pipe 1 303, the insulation pipe 304, and the connecting pipe 2 305. The top inner wall of the insulation bin 6 is fixedly installed with an insulation board 3 7. The gaps between the insulation bin 6 and the connecting pipe 1 303, the insulation pipe 304, and the connecting pipe 2 305 are filled with insulation fillers 8, which completely separate the insulation pipe 304, the connecting pipe 2 305, and the connecting pipe 1 303 from the internal space of the high temperature section 202, further improving the insulation effect of the insulation pipe 304, the connecting pipe 1 303, and the connecting pipe 2 305, and more effectively preventing the heat in the high temperature section 202 from being transferred to the connecting pipe 1 303, the insulation pipe 304, and the connecting pipe 2 305;

[0027] An insulation board 5 is fixedly installed on the outer wall of the kiln body 2, and the insulation board 5 is arranged between the booster air pump 3074 and the kiln body 2. A heat conducting plate 9 is fixedly installed on the outer wall of the air inlet pipe 302. The heat conducting plate 9 is used to absorb the excess heat in the cooling section 203 and then transfer it to the air inlet pipe 302, ensuring that the temperature on the air inlet pipe 302 is always higher than the temperature on the heat dissipation pipe 306, thereby ensuring that the excess heat in the cooling section 203 can be transferred to the preheating section 201.

[0028] Working principle: When the kiln body 2 is working, the booster air pump 3074 is turned on to extract the air in the air inlet bin 3071, so that the air in the heat dissipation pipe 306 enters the air inlet bin 3071. Under the action of the air pressure difference, the high-temperature air in the cooling section 203 enters the air inlet pipe 302 from the air inlet hole 3021, and then flows through the connecting pipe 1 303, the insulation pipe 304, and the connecting pipe 2 305 in sequence to enter the heat dissipation pipe 306. The high-temperature airflow first exchanges heat with the heat dissipation pipe 306, causing the heat dissipation pipe 306 to heat up. The heated heat dissipation pipe 306 exchanges heat with the air in the preheating section 201, causing the interior of the preheating section 201 to heat up. The air flowing through the heat dissipation pipe 306 is pumped into the air outlet bin 3072 by the booster air pump 3074, then enters the air outlet pipe 3073, and finally enters the preheating section 201 from the air outlet hole 30731, thereby realizing the recovery and reuse of excess heat in the cooling section 203.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. An energy-saving daily-use ceramic kiln, comprising a bottom frame (1), a kiln body (2) being fixedly mounted on the top of the bottom frame (1), characterized in that: The kiln body (2) comprises a preheating section (201), a high temperature section (202), and a cooling section (203), wherein the preheating section (201), the high temperature section (202), and the cooling section (203) are arranged in sequence from left to right, and a waste heat recovery mechanism (3) is provided inside the kiln body (2); The waste heat recovery mechanism (3) comprises a heat insulation board (301), an air intake pipe (302), and a heat dissipation pipe (306). Four heat insulation boards (301) are provided and are respectively installed on the inner walls of the front and back sides of the preheating section (201) and the cooling section (203). The air intake pipe (302) is fixedly arranged in the cooling section (203). An air intake hole (3021) is opened on the outer wall of one side of the air intake pipe (302) facing the center of the cooling section (203). The left end of the heat dissipation pipe (306) is connected to a connecting pipe 1 (303), the heat dissipation pipe (306) is fixedly installed in the preheating section (201), the right end of the heat dissipation pipe (306) is connected to a connecting pipe 2 (305), a heat insulation pipe (304) is connected between the connecting pipe 2 (305) and the connecting pipe 1 (303), the heat insulation pipe (304) is arranged in the high temperature section (202), and the left end of the heat dissipation pipe (306) is connected to an airflow circulation component (307).

2. The energy-saving daily-use ceramic kiln according to claim 1, characterized in that: The airflow circulation component (307) comprises an air inlet bin (3071), an air outlet bin (3072), and a booster air pump (3074). The air inlet bin (3071) is fixedly installed in the preheating section (201). The interior of the air inlet bin (3071) is connected to the left end of the heat dissipation pipe (306). The air outlet bin (3072) is fixedly installed on the air inlet bin (3071). The booster air pump (3074) is fixedly installed on the outer wall of the kiln body (2). The air outlet end of the booster air pump (3074) is connected to the left end of the heat dissipation pipe (306). The air inlet end of the booster air pump (3074) is connected to the interior of the air outlet bin (3072) through a pipeline, and the air outlet pipe (3073) is provided on the right side of the air outlet bin (3072). The air outlet pipe (3073) extends into the preheating section (201), and the air outlet pipe (3073) and the heat dissipation pipe (306) are staggered. An air outlet hole (30731) is provided on one side of the air outlet pipe (3073) facing the center of the preheating section (201).

3. The energy-saving daily-use ceramic kiln according to claim 1, characterized in that: Insulation bricks (4) are provided between the high temperature section (202) and the preheating section (201) and between the high temperature section (202) and the cooling section (203).

4. The energy-saving daily-use ceramic kiln according to claim 1, characterized in that: The air inlet pipe (302) and the heat dissipation pipe (306) are each provided in two groups, and are respectively close to the front inner wall and the back inner wall of the kiln body (2).

5. The energy-saving daily-use ceramic kiln according to claim 1, characterized in that: The inner wall of the high temperature section (202) is fixedly installed with an insulation bin (6), and the insulation bin (6) covers the connecting pipe 1 (303), the insulation pipe (304), and the connecting pipe 2 (305). The top inner wall of the insulation bin (6) is fixedly installed with an insulation board 3 (7), and the gaps between the insulation bin (6) and the connecting pipe 1 (303), the insulation pipe (304), and the connecting pipe 2 (305) are filled with insulation fillers (8).

6. The energy-saving daily-use ceramic kiln according to claim 1, characterized in that: A second heat insulation board (5) is fixedly mounted on the outer wall of the kiln body (2), and the second heat insulation board (5) is arranged between the booster air pump (3074) and the kiln body (2). A heat conducting sheet (9) is fixedly mounted on the outer wall of the air inlet pipe (302).

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