pusher kiln

Abstract

The application relates to the field of furnace kilns, and discloses a push plate kiln, which comprises a kiln body, the kiln body comprises a plurality of heat treatment cavities which are arranged through the kiln body in a first direction, the heat treatment cavities comprise a first region, a second region and a third region which are sequentially arranged in the first direction; a heating assembly, the heating assembly is arranged in the second region, the heating assembly forms heating for the second region and forms overheated gas in the heat treatment chamber; a waste heat recovery chamber, the waste heat recovery chamber is located at the top of the kiln body, the waste heat recovery chamber is communicated with the kiln body, and the waste heat recovery chamber is used for collecting the overheated gas in the heat treatment chamber; a heat exchange chamber and a connecting assembly, the heat exchange chamber is connected with the waste heat recovery chamber through the connecting assembly, and the heat exchange chamber is abutted with the first region and / or the third region so as to reduce the temperature difference between the first region, the third region and the second region. The push plate kiln is provided, which utilizes the overheated gas in the push plate kiln to improve the temperature difference in the overheated cavity.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of furnace, in particular to a push plate kiln. BACKGROUND

[0002] The push plate furnace is a common industrial heat treatment equipment, which is widely used in high-temperature sintering and heat treatment process in metallurgy, ceramics, electronic materials and chemical industry. Its characteristic is that the workpiece is moved along a specific trajectory in the furnace by the push plate, so as to complete the heat treatment with uniform temperature and high efficiency.

[0003] The existing push plate kiln has a single high-temperature structure, and the heat is concentrated in the middle part of the furnace. The two ends of the push plate kiln furnace form a low-temperature zone, and there is a large temperature difference between the middle part of the furnace, which directly affects the processing quality of the product. SUMMARY

[0004] The present application mainly solves the technical problem of large temperature difference in the existing heat treatment cavity which affects the product quality. A push plate kiln is provided, which uses the superheated gas in the push plate kiln to improve the temperature difference in the superheated cavity.

[0005] In order to solve the above technical problems, the present application provides a push plate kiln, characterized in that the push plate kiln comprises,

[0006] The kiln body comprises a plurality of heat treatment cavities, which are arranged along the first direction. The heat treatment cavities comprise a first region, a second region and a third region arranged in sequence along the first direction, and the second region is located between the first region and the third region.

[0007] The heating assembly is arranged in the second region, and the heating assembly forms heating for the second region and forms superheated gas in the heat treatment chamber.

[0008] The feeding assembly is arranged in the heat treatment cavity along the first direction, and the feeding assembly is used to drive the workpiece to move in the heat treatment cavity along the first direction, so as to form the heat treatment of the workpiece.

[0009] The waste heat recovery chamber is located at the top of the kiln body, and the waste heat recovery chamber is communicated with the kiln body. The waste heat recovery chamber is used to collect the superheated gas in the heat treatment chamber.

[0010] The heat exchange chamber is connected with the waste heat recovery chamber through the connecting assembly, and the heat exchange chamber is in contact with the first region and / or the third region, so as to reduce the temperature difference between the first region, the third region and the second region.

[0011] In an embodiment, the connecting assembly comprises,

[0012] a waste heat transfer chamber;

[0013] a first connecting member and a second connecting member, the waste heat transfer chamber is connected to the waste heat recovery chamber through the first connecting member, and the waste heat transfer chamber is connected to the heat exchange chamber through the second connecting member;

[0014] a first pump body and a second pump body, the first pump body is arranged on the first connecting member and is used to pump the overheated gas in the waste heat recovery chamber into the waste heat transfer chamber, and the second pump body is arranged on the second connecting member and is used to pump the overheated gas in the waste heat transfer chamber into the heat exchange chamber.

[0015] In an embodiment, the heat exchange chamber is located on at least one side of the heat treatment cavity along a second direction, and the heat exchange chamber is arranged corresponding to the first region and the third region respectively.

[0016] In an embodiment, the heat exchange chamber is located on at least one side of the heat treatment cavity along a third direction, and the heat exchange chamber is arranged corresponding to the first region and the second region respectively.

[0017] In an embodiment, the heat exchange chamber is located on the top of the heat treatment cavity, and the waste heat recovery chamber is located between the two heat exchange chambers.

[0018] In an embodiment, the kiln body comprises at least two, and the waste heat transfer chamber comprises two, at least two waste heat recovery chambers are connected to the two waste heat transfer chambers through the first connecting member respectively, and the waste heat transfer chambers are connected to the heat exchange chambers in the respective pusher kiln through the second connecting member respectively.

[0019] In an embodiment, the kiln body comprises two, the two waste heat transfer chambers are a first waste heat transfer chamber and a second waste heat transfer chamber, the first connecting member comprises,

[0020] a first connecting main pipe, a first end of the first connecting main pipe is connected to the waste heat recovery chamber, and the first pump body is arranged on the first connecting main pipe;

[0021] a first branch pipe and a second branch pipe, a second end of the first connecting main pipe is branched to form the first branch pipe and the second branch pipe, the first branch pipe is connected to the first waste heat transfer chamber, and the second branch pipe is connected to the second waste heat transfer chamber;

[0022] The first valve body is arranged on the first branch pipe to open and close the communication between the first residual heat transfer chamber and the residual heat recovery chamber, and the second valve body is arranged on the second branch pipe to open and close the communication between the second residual heat transfer chamber and the residual heat recovery chamber.

[0023] In an embodiment, the two kiln bodies are a first kiln body and a second kiln body, the second connecting member includes,

[0024] The second connecting main pipe has a first end connected to the residual heat transfer chamber, and the second pump body is arranged on the second connecting main pipe.

[0025] The second connecting main pipe has a second end branched into a third branch pipe and a fourth branch pipe, the third branch pipe is connected to the heat exchange chamber in the first kiln body, and the fourth branch pipe is connected to the heat exchange chamber in the second kiln body.

[0026] The third valve body is arranged on the third branch pipe to open and close the communication between the residual heat transfer chamber and the heat exchange chamber in the first kiln body, and the fourth valve body is arranged on the fourth branch pipe to open and close the communication between the residual heat transfer chamber and the heat exchange chamber in the second kiln body.

[0027] In an embodiment, the push plate kiln further includes,

[0028] The temperature detection module is arranged in the residual heat transfer chamber and is used to detect a first temperature of the overheated gas in the residual heat transfer chamber.

[0029] The control module has a preset temperature, and is connected to the temperature detection module, the first valve body, the second valve body, the third valve body, the fourth valve body, the first pump body and the second pump body. The control module controls the opening and closing of the first valve body, the second valve body, the third valve body, the fourth valve body, the first pump body and the second pump body according to the size relationship between the first temperature and the preset temperature.

[0030] In an embodiment, the push plate kiln further includes,

[0031] The heat exchange chamber is communicated with the exhaust member through a third connecting member to form the flow of the overheated gas in the heat exchange chamber.

[0032] Compared to existing technologies, in the pusher kiln of this application, the second zone of the heat treatment chamber is heated by the combustion of combustibles, and superheated gas is simultaneously introduced into the waste heat recovery chamber, and then into the heat exchange chamber through the connecting assembly. The heat exchange chamber is adjacent to the first zone and / or the third zone, thereby using the superheated gas in the heat exchange chamber to heat the first and third zones, thus reducing the temperature difference between the first and third zones and the second zone.

[0033] Therefore, this application has the characteristics of reasonable structure and convenient use. Attached Figure Description

[0034] Appendix Figure 1 This is a front view of one embodiment of the pusher kiln in this application;

[0035] Appendix Figure 2 This is a top view of one embodiment of the pusher kiln in this application;

[0036] Appendix Figure 3 This is a schematic diagram of a structure of another embodiment of the pusher kiln in this application;

[0037] Appendix Figure 4 This is a schematic diagram of a structure in another embodiment of the pusher kiln of this application.

[0038] Explanation of the labels in the diagram:

[0039] X, first direction; Y, second direction; Z, third direction;

[0040] 10. Pusher plate kiln;

[0041] 100. Kiln body; 101. First kiln body; 102. Second kiln body; 110. Heat treatment chamber; 111. First region; 112. Second region; 113. Third region; 120. Through hole;

[0042] 200. Heating components;

[0043] 300. Feeding assembly;

[0044] 400. Waste heat recovery room;

[0045] 500. Heat exchange chamber;

[0046] 600, connecting assembly; 610, waste heat transfer chamber; 611, first waste heat transfer chamber; 612, second waste heat transfer chamber; 620, first connecting piece; 621, first connecting main pipe; 622, first branch pipe; 623, second branch pipe; 624, first valve body; 625, second valve body; 630, second connecting piece; 631, second connecting main pipe; 632, third branch pipe; 633, fourth branch pipe; 634, third valve body; 635, fourth valve body; 640, first pump body; 650, second pump body;

[0047] 700, third connecting piece. DETAILED DESCRIPTION

[0048] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0049] The prior art has the technical problem that the large temperature difference in the existing heat treatment chamber affects the product quality.

[0050] Therefore, the present application provides a push plate kiln, wherein the push plate kiln comprises,

[0051] A kiln body, the kiln body comprises a plurality of heat treatment chambers arranged along a first direction, the heat treatment chambers comprise a first region, a second region and a third region arranged along the first direction in sequence, and the second region is located between the first region and the third region;

[0052] A heating assembly, the heating assembly is arranged in the second region, the heating assembly forms heating for the second region and forms superheated gas in the heat treatment chamber;

[0053] A feeding assembly, the feeding assembly is arranged in the heat treatment chamber along the first direction, and the feeding assembly is used to drive the workpiece to move in the heat treatment chamber along the first direction to form heat treatment of the workpiece;

[0054] A waste heat recovery chamber, the waste heat recovery chamber is located at the top of the kiln body, the waste heat recovery chamber communicates with the kiln body, and the waste heat recovery chamber is used to collect the superheated gas in the heat treatment chamber;

[0055] A heat exchange chamber is connected to the waste heat recovery chamber through a connecting assembly, and the heat exchange chamber abuts against the first region and / or the third region to reduce the temperature difference between the first region, the third region and the second region.

[0056] Embodiment 1

[0057] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , a specific embodiment of the pusher kiln of the present application is shown. The prior art heating assembly 200 sprays combustion-supporting gas and combustible gas in the second region 112 to heat the second region 112, but the heating assembly 200 is arranged inside the first region 111 and the third region 113, resulting in a temperature difference between the first region 111, the third region 113 and the first region 111. Therefore, the workpiece enters the heat treatment cavity 110 through the feeding assembly 300 and is heated at different temperatures in different regions, thereby affecting the processing quality of the workpiece.

[0058] The accompanying drawings Figure 1 is a front view of an embodiment of the pusher kiln 10 of the present application. The accompanying drawings Figure 2 is a top view of an embodiment of the pusher kiln 10 of the present application. Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 , the first direction of the present application is the length direction of the pusher kiln, that is, the direction from left to right of the pusher kiln of the present application or the direction from right to left of the pusher kiln of the present application. In the present application, the first region 111 is arranged to the left relative to the third region 113, and the third region 113 is arranged to the right relative to the first region 111. The second direction of the present application is the width direction of the pusher kiln, that is, the direction from front to back of the pusher kiln of the present application or the direction from back to front of the pusher kiln of the present application. In the present application, the heat exchange chamber 500 is arranged on both sides of the kiln body along the second direction. The third direction of the present application is the height direction of the pusher kiln, that is, the direction from top to bottom of the pusher kiln of the present application or the direction from bottom to top of the pusher kiln of the present application. In the present application, the waste heat transfer chamber 610 is arranged above the heat treatment cavity 110, and the heat treatment cavity 110 is arranged below the waste heat transfer chamber.

[0059] The accompanying drawings Figure 1 and the accompanying drawings Figure 2As shown, the push plate kiln of the present application comprises a kiln body, which is the main component of the push plate kiln of the present application for heat treatment. In the present application, the kiln body comprises several, which means one or more than two. In an embodiment, the push plate kiln of the present application comprises one kiln body. The heat treatment cavity 110 is arranged through the kiln body along the first direction. Further, the heat treatment cavity 110 comprises the first region 111, the second region 112 and the third region 113 arranged in sequence along the first direction, and the second region 112 is located between the first region 111 and the third region 113. In the present application, the first region 111, the second region 112 and the third region 113 are distinguished by whether the heating assembly 200 is placed. Further, the heating assembly 200 is placed in the second region 112, and the heating assembly 200 is not placed in the first region 111 and the third region 113.

[0060] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, the push plate kiln of the present application comprises a heating assembly 200, which is arranged in the second region 112. The heating assembly 200 sprays the combustion-supporting gas and the combustible gas into the second region 112, and the combustion-supporting gas and the combustible gas are mixed and burned in the second region 112 to form heating of the second region 112, and at the same time, the superheated gas in the heat treatment cavity is formed. At the same time, the first region 111 and the third region 113 are also heated synchronously due to the thermal diffusion effect. However, the first region 111 and the third region 113 do not have the heating assembly 200, so there is still a certain temperature difference between the first region 111, the third region 113 and the second region 112.

[0061] In an embodiment, the superheated gas is flue gas.

[0062] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, the push plate kiln 10 of the present application further comprises a feeding assembly 300, which is arranged in the heat treatment cavity 110 along the first direction. The feeding assembly 300 is used to drive the workpiece to move in the heat treatment cavity 110 along the first direction to form the heat treatment of the workpiece.

[0063] In an embodiment, the feeding assembly 300 is a conveyor belt.

[0064] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2As shown, the pusher kiln 10 of this application also includes a waste heat recovery chamber 400, which is used to recover superheated gas for heating the first region 111 and the third region 113. In this application, the superheated gas rises after formation, therefore the waste heat recovery chamber 400 is located at the top of the kiln body 100, ensuring that the superheated gas can flow to the waste heat recovery chamber 400 after formation. The waste heat recovery chamber 400 is connected to the kiln body 100 and is used to collect the superheated gas in the heat treatment chamber for reuse.

[0065] In one embodiment, the waste heat recovery chamber 400 is connected to the heat treatment chamber through the through hole 120.

[0066] Please refer to the attached document. Figure 1 and appendix Figure 2 As shown, the pusher kiln 10 of this application also includes a heat exchange chamber 500 and a connecting assembly 600. The heat exchange chamber 500 is connected to the waste heat recovery chamber 400 through the connecting assembly 600 to guide the superheated gas in the waste heat recovery chamber 400 into the heat exchange chamber 500. The heat exchange chamber 500 abuts against the first region 111 and / or the third region 113, that is, the heat exchange chamber 500 is attached to the first region 111 and the third region 113, and the superheated gas in the heat exchange chamber 500 heats the first region 111 and the third region 113 to reduce the temperature difference between the first region 111, the third region 113 and the second region 112.

[0067] In one embodiment, the heat exchange chamber 500 is located on at least one side of the heat treatment cavity 110 along the second direction, and the heat exchange chamber 500 is respectively disposed corresponding to the first region 111 and the third region 113. Further, the heat exchange chamber 500 is located on both sides of the heat treatment cavity 110 along the second direction.

[0068] In one embodiment, the connecting assembly 600 includes a waste heat transfer chamber 610 for temporarily storing superheated gas. The connecting assembly 600 also includes a first connector 620, through which the waste heat transfer chamber 610 is connected to a waste heat recovery chamber 400 to recover superheated gas from the waste heat recovery chamber 400 into the waste heat transfer chamber 610. The connecting assembly 600 further includes a second connector 630, through which the waste heat transfer chamber 610 is connected to a heat exchange chamber 500 to recover superheated gas from the waste heat transfer chamber 610 into the heat exchange chamber 500. The connecting assembly 600 also includes a first pump body 640, which is disposed on the first connector 620 and is used to pump superheated gas from the waste heat recovery chamber 400 into the waste heat transfer chamber 610. The connecting assembly 600 also includes a second pump body 650. The second connecting member 630 is provided with the second pump body 650, which is used to pump the superheated gas in the waste heat transfer chamber 610 into the heat exchange chamber 500. Furthermore, both the first connecting member 620 and the second connecting member 630 are made of connecting pipes.

[0069] Example 2:

[0070] Appendix Figure 3 This is a schematic diagram of another embodiment of the pusher kiln 10 of this application. Please refer to the attached diagram. Figure 3 As shown, the first direction of this application is the length direction of the pusher kiln, that is, the direction of the pusher kiln from left to right or from right to left. In this application, the first region 111 is positioned to the left of the third region 113, and the third region 113 is positioned to the right of the first region 111. The third direction of this application is the height direction of the pusher kiln, that is, the direction of the pusher kiln from top to bottom or from bottom to top. In this application, the waste heat transfer chamber 610 is positioned above the heat treatment chamber 110, and the heat treatment chamber 110 is positioned below the waste heat transfer chamber.

[0071] Please refer to the attached document. Figure 3As shown, the pusher kiln of the present application comprises a kiln body, and the kiln body is the main component of the pusher kiln of the present application for heat treatment. In the present application, the kiln body comprises several, and several means one or more than two. In an embodiment, the pusher kiln of the present application comprises one kiln body. The heat treatment cavity 110 is arranged through the kiln body along the first direction. Further, the heat treatment cavity 110 comprises a first region 111, a second region 112 and a third region 113 arranged in sequence along the first direction, and the second region 112 is located between the first region 111 and the third region 113. In the present application, the first region 111, the second region 112 and the third region 113 are distinguished by whether the heating assembly 200 is placed. Further, the heating assembly 200 is placed in the second region 112, and no heating assembly 200 is placed in the first region 111 and the third region 113.

[0072] Please refer to the accompanying drawings Figure 3 As shown, the pusher kiln of the present application comprises a heating assembly 200, and the heating assembly 200 is arranged in the second region 112. The heating assembly 200 sprays combustion-supporting gas and combustible gas into the second region 112, and the combustion-supporting gas and the combustible gas are mixed and burned in the second region 112 to form heating of the second region 112, and at the same time, superheated gas in the heat treatment cavity is formed. At the same time, the first region 111 and the third region 113 are also heated synchronously due to the thermal diffusion effect. However, there is no heating assembly 200 in the first region 111 and the third region 113, so there is still a certain temperature difference between the first region 111, the third region 113 and the second region 112.

[0073] In an embodiment, the superheated gas is flue gas.

[0074] Please refer to the accompanying drawings Figure 3 As shown, the pusher kiln 10 of the present application further comprises a feeding assembly 300, and the feeding assembly 300 is arranged in the heat treatment cavity 110 along the first direction. The feeding assembly 300 is used to drive the workpiece to move in the heat treatment cavity 110 along the first direction to form heat treatment of the workpiece.

[0075] In an embodiment, the feeding assembly 300 is a conveyor belt.

[0076] Please refer to the accompanying drawings Figure 3As shown, the pusher kiln 10 of this application also includes a waste heat recovery chamber 400, which is used to recover superheated gas for heating the first region 111 and the third region 113. In this application, the superheated gas rises after formation; therefore, the waste heat recovery chamber 400 is located at the top of the kiln body 100 to ensure that the superheated gas can flow to the waste heat recovery chamber 400 after formation. The waste heat recovery chamber 400 is connected to the kiln body 100 and is used to collect the superheated gas in the heat treatment chamber for reuse.

[0077] In one embodiment, the waste heat recovery chamber 400 is connected to the heat treatment chamber through the through hole 120.

[0078] Please refer to the attached document. Figure 3 As shown, the pusher kiln 10 of this application also includes a heat exchange chamber 500 and a connecting assembly 600. The heat exchange chamber 500 is connected to the waste heat recovery chamber 400 through the connecting assembly 600 to guide the superheated gas in the waste heat recovery chamber 400 into the heat exchange chamber 500. The heat exchange chamber 500 abuts against the first region 111 and / or the third region 113, that is, the heat exchange chamber 500 is attached to the first region 111 and the third region 113, and the superheated gas in the heat exchange chamber 500 heats the first region 111 and the third region 113 to reduce the temperature difference between the first region 111, the third region 113 and the second region 112.

[0079] In one embodiment, the heat exchange chamber 500 is located on at least one side of the heat treatment cavity 110 along a third direction, and the heat exchange chamber 500 is respectively disposed corresponding to the first region 111 and the third region 113. Further, the heat exchange chamber 500 is located at the top of the heat treatment cavity 110, and the waste heat recovery chamber 400 is located between the two heat exchange chambers 500.

[0080] In one embodiment, the connecting assembly 600 includes a waste heat transfer chamber 610 for temporarily storing superheated gas. The connecting assembly 600 also includes a first connector 620, through which the waste heat transfer chamber 610 is connected to a waste heat recovery chamber 400 to recover superheated gas from the waste heat recovery chamber 400 into the waste heat transfer chamber 610. The connecting assembly 600 further includes a second connector 630, through which the waste heat transfer chamber 610 is connected to a heat exchange chamber 500 to recover superheated gas from the waste heat transfer chamber 610 into the heat exchange chamber 500. The connecting assembly 600 also includes a first pump body 640, which is disposed on the first connector 620 and is used to pump superheated gas from the waste heat recovery chamber 400 into the waste heat transfer chamber 610. The connecting assembly 600 also includes a second pump body 650. The second connecting member 630 is provided with the second pump body 650, which is used to pump the superheated gas in the waste heat transfer chamber 610 into the heat exchange chamber 500. Furthermore, both the first connecting member 620 and the second connecting member 630 are made of connecting pipes.

[0081] Example 3:

[0082] Appendix Figure 4 This is a schematic diagram of another embodiment of the pusher kiln 10 of this application. Please refer to the attached diagram. Figure 4 As shown, the first direction of this application is the length direction of the pusher kiln, that is, the direction of the pusher kiln from left to right or from right to left. In this application, the first region 111 is positioned to the left of the third region 113, and the third region 113 is positioned to the right of the first region 111. The third direction of this application is the height direction of the pusher kiln, that is, the direction of the pusher kiln from top to bottom or from bottom to top. In this application, the waste heat transfer chamber 610 is positioned above the heat treatment chamber 110, and the heat treatment chamber 110 is positioned below the waste heat transfer chamber.

[0083] Please refer to the attached document. Figure 4 As shown, the pusher kiln of this application includes a kiln body, which is the main component of the pusher kiln for heat treatment. In this application, the kiln body includes several kiln bodies, which refers to one or more kiln bodies. In one embodiment, the pusher kiln of this application includes two or more kiln bodies. Further, the pusher kiln of this application includes two kiln bodies 100, which are a first kiln body 101 and a second kiln body 102, respectively. In the specific production process, multiple pusher kilns 10 are usually centrally arranged, and the temperature inside the heat treatment chamber 110 of each pusher kiln 10 will be different due to the different workpieces being processed.

[0084] The kiln body is provided with a heat treatment cavity 110 along the first direction. Further, the heat treatment cavity 110 comprises a first region 111, a second region 112 and a third region 113 arranged along the first direction in sequence, and the second region 112 is located between the first region 111 and the third region 113. In the present application, the first region 111, the second region 112 and the third region 113 are distinguished by whether the heating assembly 200 is placed. Further, the heating assembly 200 is placed in the second region 112, and the first region 111 and the third region 113 are not placed with the heating assembly 200.

[0085] Please refer to the accompanying drawings Figure 4 As shown in the drawings, the push plate kiln of the present application comprises a heating assembly 200, the heating assembly 200 is arranged in the second region 112, the heating assembly 200 sprays combustion-supporting gas and combustible gas into the second region 112, the combustion-supporting gas and the combustible gas are mixed and burned in the second region 112 to form heating of the second region 112, and at the same time, superheated gas in the heat treatment cavity is formed. At the same time, the first region 111 and the third region 113 are also heated synchronously due to the thermal diffusion effect. However, the first region 111 and the third region 113 are not provided with the heating assembly 200, so there is still a certain temperature difference between the first region 111, the third region 113 and the second region 112.

[0086] In an embodiment, the superheated gas is flue gas.

[0087] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown in the drawings, the push plate kiln 10 of the present application further comprises a feeding assembly 300, the feeding assembly 300 is arranged in the heat treatment cavity 110 along the first direction, and the feeding assembly 300 is used to drive the workpiece to move in the heat treatment cavity 110 along the first direction to form heat treatment of the workpiece.

[0088] In an embodiment, the feeding assembly 300 is a conveyor belt.

[0089] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown in the drawings, the push plate kiln 10 of the present application further comprises a waste heat recovery chamber 400, the waste heat recovery chamber 400 is used to recover the superheated gas to heat the first region 111 and the third region 113 by the superheated gas. In the present application, the superheated gas moves upward after being formed, therefore, the waste heat recovery chamber 400 is arranged at the top of the kiln body 100, so as to ensure that the superheated gas can flow to the waste heat recovery chamber 400 after being formed. The waste heat recovery chamber 400 is communicated with the kiln body 100, and the waste heat recovery chamber 400 is used to collect the superheated gas in the heat treatment cavity to reuse the superheated gas.

[0090] In an embodiment, the waste heat recovery chamber 400 is in communication with the thermal processing chamber through the through hole 120.

[0091] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 It is shown that the pusher kiln 10 of the present application further comprises a heat exchange chamber 500 and a connecting assembly 600. The heat exchange chamber 500 in each pusher kiln 10 is connected to the waste heat recovery chamber 400 in each pusher kiln 10 through the connecting assembly 600, so as to guide the superheated gas in the waste heat recovery chamber 400 into the heat exchange chamber 500. The heat exchange chamber 500 is in contact with the first region 111 and / or the third region 113, i.e. the heat exchange chamber 500 is attached to the first region 111 and the third region 113, and the first region 111 and the third region 113 are heated by the superheated gas in the heat exchange chamber 500, so as to reduce the temperature difference between the first region 111, the third region 113 and the second region 112.

[0092] In an embodiment, the heat exchange chamber 500 is located at least on one side of the thermal processing cavity 110 along the third direction, and the heat exchange chamber 500 is arranged corresponding to the first region 111 and the third region 113 respectively. Further, the heat exchange chamber 500 is located at the top of the thermal processing cavity 110, and the waste heat recovery chamber 400 is located between the two heat exchange chambers 500.

[0093] In an embodiment, the heat exchange chamber 500 is located at least on one side of the thermal processing cavity 110 along the second direction, and the heat exchange chamber 500 is arranged corresponding to the first region 111 and the third region 113 respectively. Further, the heat exchange chamber 500 is located on both sides of the thermal processing cavity 110 along the second direction.

[0094] In an embodiment, the connecting assembly 600 comprises a waste heat transfer chamber 610, which is used for temporarily storing superheated gas. In the present application, the waste heat transfer chamber 610 comprises two first and second waste heat transfer chambers. The connecting assembly 600 comprises first and second connecting members 620 and 630. The waste heat recovery chamber 400 on each pusher kiln 10 is connected to the two waste heat transfer chambers 610 through the first connecting member 620, and the waste heat transfer chamber 610 is connected to the heat exchange chamber 500 in each pusher kiln 10 through the second connecting member 630.

[0095] Further, the first connecting member 620 comprises a first connecting main pipe 621, the first connecting main pipe 621 comprises two ends, a first end of the first connecting main pipe 621 is connected with the waste heat recovery chamber 400, and the first pump body 640 is arranged on the first connecting main pipe 621. The first connecting member 620 further comprises a first branch pipe 622 and a second branch pipe 623, a second end of the first connecting main pipe 621 is bifurcated to form the first branch pipe 622 and the second branch pipe 623, the first branch pipe 622 is connected with the first waste heat transfer chamber 611, and the second branch pipe 623 is connected with the second waste heat transfer chamber 612. The first connecting member 620 further comprises a first valve body 624 and a second valve body 625, the first valve body 624 is arranged on the first branch pipe 622 to open and close the communication between the first waste heat transfer chamber 611 and the waste heat recovery chamber 400. The second valve body 625 is arranged on the second branch pipe 623 to open and close the communication between the second waste heat transfer chamber 612 and the waste heat recovery chamber 400. The first pump body 640 is used to recycle the overheated gas in the waste heat recovery chamber 400 into the first waste heat transfer chamber 611 or the second waste heat transfer chamber 612, and the overheated gas entering the first waste heat transfer chamber 611 or the second waste heat transfer chamber 612 depends on the opening and closing of the first valve body 624 or the second valve body 625.

[0096] Further, the second connecting member 630 comprises a second connecting main pipe 631, the second connecting main pipe 631 comprises two ends. A first end of the second connecting main pipe 631 is connected with the waste heat transfer chamber 610, and the second pump body 650 is arranged on the second connecting main pipe 631. The second connecting member 630 further comprises a third branch pipe 632 and a fourth branch pipe 633, a second end of the second connecting pipe is bifurcated to form the third branch pipe 632 and the fourth branch pipe 633, the third branch pipe 632 is connected with the heat exchange chamber 500 in the first kiln body 101, and the fourth branch pipe 633 is connected with the heat exchange chamber 500 in the second kiln body 102. The second connecting member 630 further comprises a third valve body 634 and a fourth valve body 635, the third valve body 634 is arranged on the third branch pipe 632 to open and close the communication between the waste heat transfer chamber 610 and the heat exchange chamber 500 in the first kiln body 101. The fourth valve body 635 is arranged on the fourth branch pipe 633 to open and close the communication between the waste heat transfer chamber 610 and the heat exchange chamber 500 in the second kiln body 102. The second kiln body 102 is used to deliver the overheated gas in the waste heat transfer chamber 610 into the heat exchange chamber 500 of the first kiln body 101 or the heat exchange chamber 500 of the second kiln body 102, and the overheated gas entering the heat exchange chamber 500 of the first kiln body 101 or the heat exchange chamber 500 of the second kiln body 102 depends on the opening and closing of the third valve body 634 or the fourth valve body 635.

[0097] The pusher kiln 10 of the present application further comprises a temperature detection module, which is located in the waste heat transfer chamber 610, and the first waste heat transfer chamber 611 and the second waste heat transfer chamber 612 are provided with temperature detection modules. The waste heat transfer chamber 610 recycles the superheated gas in the plurality of kiln bodies 100. Since the temperature of the superheated gas varies due to different processing workpieces, the temperature detection module needs to be arranged in the waste heat transfer chamber 610 to detect the temperature of the mixed superheated gas. The purpose of arranging two waste heat transfer chambers 610 is that the mixing of superheated gas needs a certain time, so two waste heat transfer chambers 610 are arranged for circulation, that is, when the mixed gas has not reached the temperature, the superheated gas in the second waste heat transfer chamber 612 that has reached the relative temperature can be used first to reduce the waiting time. The temperature detection module is used to detect the superheated gas in the waste heat transfer chamber 610 and form the first temperature of the superheated gas.

[0098] The pusher kiln 10 of the present application further comprises a control module, which has a preset temperature, and the preset temperature is the temperature required by the heat exchange chamber 500. The control module is connected with the temperature detection module, the first valve body 624, the second valve body 625, the third valve body 634, the fourth valve body 635, the first pump body 640 and the second pump body 650. The control module controls the on-off of the first valve body 624, the second valve body 625, the third valve body 634, the fourth valve body 635, the first pump body 640 and the second pump body 650 according to the size between the first temperature and the preset temperature. That is, when the first temperature is less than the preset temperature, the control module controls to continue to input the temperature into the waste heat transfer chamber 610, and the input temperature can be adjusted according to the required temperature at present to adjust the input amount of the superheated gas in each kiln body 100. When the second temperature is greater than the preset temperature, the control module controls the superheated gas in the waste heat transfer chamber 610 to be input into the heat exchange chamber 500.

[0099] Please refer to the accompanying drawings Figure 4 The pusher kiln 10 further comprises a third connecting piece 700, and the heat exchange chamber 500 is connected with the exhaust member through the third connecting piece 700 to form the flow of the superheated gas in the heat exchange chamber 500.

[0100] In an embodiment, the third connecting piece 700 is a pipeline, and the exhaust member is a chimney.

[0101] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Also, the specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0102] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0103] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A pusher kiln characterized by, The push plate kiln comprises, The kiln body comprises several, the heat treatment cavity is provided through in the kiln body along the first direction, the heat treatment cavity comprises the first area, the second area and the third area that are sequentially arranged along the first direction, the second area is located between the first area and the third area; The heating assembly is arranged in the second area, the heating assembly forms heating for the second area, and forms superheated gas in the heat treatment chamber; The feeding assembly is arranged in the heat treatment cavity along the first direction, and the feeding assembly is used to drive the workpiece to move in the heat treatment cavity along the first direction to form heat treatment of the workpiece; The waste heat recovery chamber is located at the top of the kiln body, and the waste heat recovery chamber is communicated with the kiln body, and the waste heat recovery chamber is used to collect the superheated gas in the heat treatment chamber; The heat exchange chamber and the connecting assembly are connected with the waste heat recovery chamber through the connecting assembly, and the heat exchange chamber is abutted with the first area and / or the third area to reduce the temperature difference between the first area, the third area and the second area.

2. The pusher kiln according to claim 1, characterized in that The connecting assembly comprises, The waste heat transfer chamber; The first connecting piece and the second connecting piece, the waste heat transfer chamber is connected with the waste heat recovery chamber through the first connecting piece, and the waste heat transfer chamber is connected with the heat exchange chamber through the second connecting piece; The first pump body and the second pump body, the first pump body is arranged on the first connecting piece, and the first pump body is used to pump the superheated gas in the waste heat recovery chamber into the waste heat transfer chamber, and the second pump body is arranged on the second connecting piece, and the second pump body is used to pump the superheated gas in the waste heat transfer chamber into the heat exchange chamber.

3. The pusher kiln according to claim 1, wherein The heat exchange chamber is located on at least one side of the heat treatment cavity along the second direction, and the heat exchange chamber is correspondingly arranged with the first area and the third area respectively.

4. The pusher kiln of claim 1, wherein The heat exchange chamber is located on at least one side of the heat treatment cavity along the third direction, and the heat exchange chamber is correspondingly arranged with the first area and the second area respectively.

5. The pusher kiln according to claim 4, characterized in that The heat exchange chamber is located at the top of the heat treatment cavity, and the waste heat recovery chamber is located between the two heat exchange chambers.

6. The pusher kiln of claim 2 wherein, The kiln body comprises at least two, and the waste heat transfer chamber comprises two, at least two waste heat recovery chambers are connected with two waste heat transfer chambers through the first connecting piece respectively, and the waste heat transfer chambers are connected with the heat exchange chambers in each push plate kiln through the second connecting piece respectively.

7. The pusher kiln according to claim 6, characterized in that The kiln body is two, and the two waste heat transfer chambers are a first waste heat transfer chamber and a second waste heat transfer chamber, the first connecting piece comprises, The first connecting main pipe, the first end of the first connecting main pipe is connected with the waste heat recovery chamber, and the first pump body is arranged on the first connecting main pipe; The first branch pipe and the second branch pipe, the second end of the first connecting main pipe is bifurcated to form the first branch pipe and the second branch pipe, the first branch pipe is connected with the first waste heat transfer chamber, and the second branch pipe is connected with the second waste heat transfer chamber. The first valve body is arranged on the first branch pipe to open and close the communication between the first residual heat transfer chamber and the residual heat recovery chamber, and the second valve body is arranged on the second branch pipe to open and close the communication between the second residual heat transfer chamber and the residual heat recovery chamber.

8. The pusher kiln according to claim 7, characterized in that The two kiln bodies are a first kiln body and a second kiln body, the second connecting member includes, The second connecting main pipe has a first end connected to the residual heat transfer chamber, and the second pump body is arranged on the second connecting main pipe; The second connecting main pipe has a second end branched into a third branch pipe and a fourth branch pipe, the third branch pipe is connected to the heat exchange chamber in the first kiln body, and the fourth branch pipe is connected to the heat exchange chamber in the second kiln body; The third valve body is arranged on the third branch pipe to open and close the communication between the residual heat transfer chamber and the heat exchange chamber in the first kiln body, and the fourth valve body is arranged on the fourth branch pipe to open and close the communication between the residual heat transfer chamber and the heat exchange chamber in the second kiln body.

9. The pusher plate kiln of claim 8, wherein, The push plate kiln further includes, The temperature detection module is arranged in the residual heat transfer chamber and is used to detect the first temperature of the overheated gas in the residual heat transfer chamber; The control module has a preset temperature, and is connected to the temperature detection module, the first valve body, the second valve body, the third valve body, the fourth valve body, the first pump body and the second pump body. The control module controls the opening and closing of the first valve body, the second valve body, the third valve body, the fourth valve body, the first pump body and the second pump body according to the size relationship between the first temperature and the preset temperature.

10. The pusher kiln of claim 1 wherein, The push plate kiln further includes, The heat exchange chamber is communicated with the exhaust member through the third connecting member to form the flow of the overheated gas in the heat exchange chamber.

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