A waste heat recovery energy-saving oven

Abstract

The present invention discloses a waste heat recovery energy-saving oven, which belongs to the field of textile processing technology, and includes an oven body and non-woven fabrics. The side wall of the oven body is provided with a heating fan, a plurality of rollers are provided inside the oven body, and a suction fan, an exhaust fan and an air intake fan are provided on the top of the oven body. The present invention uses the tail gas accumulation to drive the driving blades to rotate through the tail gas treatment mechanism, so that the rotating ring rotates to spray the treatment solution through the baffle blades to adsorb and oxidize pollutants such as organic particulate matter in the tail gas, and the centrifugal force generated by the rotation of the centrifugal cylinder is used to separate, condense and automatically recover the liquid mist in the treated tail gas, and the activated carbon filter layer is used to further reduce the particulate matter and water vapor content in the tail gas entering the exhaust fan, so that the tail gas entering the heat exchange cylinder for heat exchange is purer, and the particulate matter generated after the non-woven fabric is heated is reduced. Deposition on the wall of the heat exchange cylinder and the cold air duct is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile processing, and in particular to a waste heat recovery energy-saving oven. Background Art

[0002] During the processing of non-woven fabrics, it is necessary to dry the non-woven fabrics. This step is mainly to remove moisture from the non-woven fabrics, eliminate the influence of water molecules on the arrangement and bonding force between the non-woven fabric fibers, improve the stability of the non-woven fabric fiber morphology and arrangement, and shape the non-woven fabrics.

[0003] In the prior art, during the heating and drying process of non-woven fabrics, the heated exhaust gas is generally recovered and the intake air is heated by a heat exchanger to reduce the heating cost. However, during the heating process of the non-woven fabrics, the fiber particles in the non-woven fabrics and the oily additives, additives, dyes and other additives in the non-woven fabric processing process are volatilized by heat and the gases generated are mixed with the exhaust gas, which not only harms the environment, but also after entering the heat exchange device, the fiber particles and oily volatile gases in the exhaust gas are easily attached to the pipe wall of the heat exchange mechanism, affecting the heat exchange efficiency and increasing the cost of operation and cleaning.

[0004] How to invent a waste heat recovery energy-saving oven to improve these problems has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a waste heat recovery energy-saving oven, aiming to improve the problems raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] The present invention provides a waste heat recovery energy-saving oven, comprising an oven body and non-woven fabrics, a heating fan is arranged on the side wall of the oven body, a plurality of rollers are arranged inside the oven body, an exhaust fan, an exhaust fan and an air intake fan are arranged on the top of the oven body, a heating channel, a centrifugal cylinder and a heat exchange cylinder are also arranged on the top of the oven body, an exhaust pipe is arranged on the air intake end of the exhaust fan, the exhaust pipe is provided with a plurality of air intake pipes extending into the oven body, an exhaust gas treatment mechanism is arranged on the top of the oven body, a motor is arranged on the top of the oven body, a gear 1 and a gear 2 are connected to the output shaft of the motor, the air intake end and the exhaust end of the exhaust fan are respectively connected to the centrifugal cylinder and the heat exchange cylinder, the air intake end of the air intake fan is connected to the heating channel, an air supply pipe is connected between the exhaust end of the air intake fan and the air intake end of the heating fan, a cold air pipe is arranged on the side wall of the heat exchange cylinder, and the cold air pipe is connected to the heating channel;

[0008] The exhaust gas treatment mechanism includes a treatment channel arranged on the top of the oven body, a centrifugal cylinder is rotatably connected to the treatment channel, a swivel is rotatably connected inside the treatment channel, a plurality of groups of choke blades are connected to the inner side of the swivel, a driving blade is arranged inside the treatment channel, the center of the driving blade is connected to the center of the choke blade by a group of rotating shafts, a hot air pipe is connected between the exhaust end of the exhaust fan and the treatment channel, an air inlet groove is arranged in the area of ​​the treatment channel away from the hot air pipe, a pressure chamber and a liquid storage chamber are arranged inside the treatment channel, a piston block is sleeved inside the pressure chamber, a spring is arranged between the piston block and the pressure chamber, a liquid supply pipe is arranged between the bottom of the liquid storage chamber and the bottom of the pressure chamber, a spray hole connected to the side wall of the swivel is arranged on the surface of the choke blade, an annular groove connected to the side wall of the swivel is arranged inside the treatment channel, a drain pipe is arranged between the annular groove and the pressure chamber, gear six is ​​arranged on the outer walls of the centrifugal cylinder and the heat exchange cylinder, gear six is ​​meshed with gear one through a transmission gear arranged on the top of the oven body, a surrounding slide is arranged inside the centrifugal cylinder, and a transmission mechanism is also arranged on the surface of the oven body.

[0009] Preferably, the rotating ring and the piston block are constructed of magnets, and the magnetic pole orientation of the piston block is designed to correspond to the magnetic pole orientation distribution of the rotating ring.

[0010] Preferably, the surrounding slide is of spiral design, a coagulation promoter coating is provided on the surface of the surrounding slide, and the inner side wall of the centrifugal cylinder is of inclined design toward the processing channel.

[0011] Preferably, an activated carbon filter layer is provided between the centrifugal cylinder and the exhaust fan, and an activated carbon filter layer is also provided between the exhaust fan and the heat exchange cylinder.

[0012] Preferably, the transmission mechanism includes a driving bar arranged at both ends of the roller, the roller is slidably connected to the side wall of the oven body in the vertical direction, the side wall of the oven body is rotatably connected to multiple groups of gears five, the gears five located on the same side of the oven body are synchronously connected by a group of transmission belts, and the rotating shaft of one group of gears five is connected to gear four, the driving bar is provided with a horizontal slide groove on the side facing the gear five, the side wall of the gear five is provided with a pin shaft designed corresponding to the horizontal slide groove of the driving bar, the side wall of the oven body is provided with a gear three meshing with gear two, and the gear three and gear four are connected by a gear belt transmission.

[0013] Preferably, the number of teeth on gear three is smaller than the number of teeth on gear four.

[0014] Preferably, the portion of the cold air duct extending to the inner side of the heat exchange tube is of spiral design, and the inner side wall of the heat exchange tube is provided with multiple groups of spoiler strips.

[0015] In summary, the beneficial effects of the present invention are:

[0016] 1. The exhaust gas treatment mechanism utilizes the accumulation of exhaust gas to drive the driving blades to rotate, so that the rotating ring rotates and sprays the treatment solution through the baffle blades to adsorb and oxidize pollutants such as organic particulate matter in the exhaust gas, thereby realizing the primary treatment of the exhaust gas. The centrifugal force generated by the rotation of the centrifugal cylinder separates, condenses and automatically recovers the liquid mist in the treated exhaust gas, and further reduces the particulate matter and water vapor content in the exhaust gas entering the exhaust fan through the activated carbon filter layer, so that the exhaust gas entering the heat exchange cylinder for heat exchange is purer, and the particulate matter generated after the non-woven fabric is heated is reduced. The deposition of the heat exchange cylinder and the cold air pipe wall ensures the heat exchange efficiency of heat energy recovery, while reducing the cleaning frequency inside the heat exchange cylinder, further reducing the operation and maintenance costs. At the same time, through the synchronous rotation of the heat exchange cylinder, the turbulence degree of the hot exhaust gas inside the heat exchange cylinder is improved, which can not only promote the uniform distribution and transfer of heat and improve the heat exchange efficiency, but also make the exhaust gas and the cold air pipe have more sufficient contact and mixing, reduce the local temperature difference, and further improve the heat exchange effect.

[0017] 2. When the motor rotates, it can drive gear four to rotate at a reduced speed, and further drive each group of gear five to rotate synchronously. With the design of multiple groups of gear five and rollers, the non-woven fabric can be driven to do simple harmonic wave motion inside the oven body, promoting the flow and exchange of hot air around the non-woven fabric, which is helpful for better distribution and penetration of heat to the non-woven fabric. At the same time, the contact position can be changed intermittently, reducing problems such as uneven local drying or over-drying that may be caused by long-term fixed contact, thereby improving the quality and efficiency of heating and drying of non-woven fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is an overall schematic diagram of an oven body provided in an embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the interior of an oven body provided in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the top of the oven body provided in an embodiment of the present invention.

[0022] Figure 4 1 is an overall schematic diagram of a gear 5 provided in an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the movement of the nonwoven fabric provided by an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of processing channel splitting provided in an embodiment of the present invention.

[0025] Figure 7 It is a schematic diagram of the interior of a processing channel provided in an embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of the interior of a heat exchange tube provided in an embodiment of the present invention.

[0027] Fig. 9 It is a schematic diagram of the interior of a centrifuge cylinder provided in an embodiment of the present invention.

[0028] Legend:

[0029] 100, oven body; 101, heating fan; 102, exhaust fan; 103, exhaust fan; 104, air intake fan; 105, heating channel; 106, hot air pipe; 107, processing channel; 108, centrifugal cylinder; 109, heat exchange cylinder; 110, air intake pipe; 111, motor; 112, gear 1; 113, gear 2; 114, gear 3; 115, gear 4; 116, roller; 117, gear 5; 11 8. Air supply pipe; 120. Drive strip; 121. Pin; 122. Drive blade; 123. Air inlet slot; 124. Rotating ring; 125. Exhaust pipe; 126. Gear six; 127. Liquid storage chamber; 128. Annular groove; 129. Pressure chamber; 130. Piston block; 131. Liquid discharge pipe; 132. Liquid supply pipe; 133. Thwart blade; 134. Surrounding slide; 135. Cold air pipe; 137. Spoiler strip; 200. Non-woven fabric. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-9The present invention provides a waste heat recovery energy-saving oven, comprising an oven body 100 and a non-woven fabric 200. A heating fan 101 is arranged on the side wall of the oven body 100. A plurality of rollers 116 are arranged inside the oven body 100. An exhaust fan 102, an exhaust fan 103 and an air intake fan 104 are arranged on the top of the oven body 100. A heating channel 105, a centrifugal cylinder 108 and a heat exchange cylinder 109 are also arranged on the top of the oven body 100. A heating pipe network is arranged inside the heating channel 105. An exhaust pipe 125 is arranged at the air inlet end of the exhaust fan 102. The exhaust pipe 125 is provided with a plurality of air intake pipes 110 extending to the inside of the oven body 100. An exhaust gas treatment mechanism is provided on the top of the main body 100. A motor 111 is provided on the top of the oven main body 100. The output shaft of the motor 111 is connected to a gear 112 and a gear 2 113. The air inlet end and the exhaust end of the exhaust fan 103 are respectively connected to the centrifugal cylinder 108 and the heat exchange cylinder 109. The air inlet end of the air inlet fan 104 is connected to the heating channel 105. An air supply pipe 118 is connected between the exhaust end of the air inlet fan 104 and the air inlet end of the heating fan 101. A cold air pipe 135 is provided on the side wall of the heat exchange cylinder 109. The cold air pipe 135 is connected to the heating channel 105. The end of the heat exchange cylinder 109 is provided with an exhaust port connected to an external exhaust gas treatment device.

[0032] The tail gas treatment mechanism includes a treatment channel 107 arranged at the top of the oven body 100, a centrifugal cylinder 108 is rotatably connected to the treatment channel 107, and a heat exchange cylinder 109 is rotatably connected to the oven body 100 through a bracket arranged at the top of the oven body 100. The inside of the treatment channel 107 is rotatably connected to a rotating ring 124, and the inner side of the rotating ring 124 is connected to a plurality of groups of flow-blocking blades 133. A driving blade 122 is arranged inside the treatment channel 107, and the center of the driving blade 122 is aligned with the center of the flow-blocking blade 133. A hot air pipe 106 is connected between the exhaust end of the exhaust fan 102 and the processing channel 107 through a set of rotating shafts. An air inlet slot 123 is provided in the processing channel 107 in an area away from the hot air pipe 106. The driving blade 122 and the baffle blade 133 are connected through the air inlet slot 123. A pressure chamber 129 and a liquid storage chamber 127 are provided in the processing channel 107. A processing solution is provided in the liquid storage chamber 127. A mixed solution of sodium carbonate and potassium permanganate can be used to treat water vapor, benzene and toluene in the tail gas. , formaldehyde and other organic substances for absorption treatment, and other solutions can also be selected according to the specific formula and materials of the non-woven fabric 200, such as a mixed solution of sodium hydroxide and a specific oxidant, for absorbing water vapor and specific organic pollutants. The interior of the pressure chamber 129 is sleeved with a piston block 130, a spring is arranged between the piston block 130 and the pressure chamber 129, a liquid supply pipe 132 with a one-way valve is arranged between the bottom of the liquid storage chamber 127 and the bottom of the pressure chamber 129, and a surface of the baffle blade 133 is provided with a spring that is connected to the rotating ring 12 4, an annular groove 128 communicating with the side wall of the rotating ring 124 is provided inside the processing channel 107, a drain pipe 131 is provided between the annular groove 128 and the pressure chamber 129, gear six 126 is provided on the outer side walls of the centrifugal cylinder 108 and the heat exchange cylinder 109, the gear six 126 is meshed with the gear one 112 through a transmission gear provided on the top of the oven body 100, a surrounding slide 134 is provided inside the centrifugal cylinder 108, and a transmission mechanism is also provided on the surface of the oven body 100.

[0033] It should be noted that the rotating ring 124 and the piston block 130 are constructed of magnets, and the magnetic pole orientation of the piston block 130 is designed to correspond to the magnetic pole orientation distribution of the rotating ring 124 .

[0034] Furthermore, the surrounding slide 134 is of a spiral design, a coagulation promoter coating is provided on the surface of the surrounding slide 134 , and the inner wall of the centrifugal cylinder 108 is of an inclined design toward the processing channel 107 .

[0035] Furthermore, an activated carbon filter layer is provided between the centrifugal cylinder 108 and the exhaust fan 103 , and an activated carbon filter layer is also provided between the exhaust fan 103 and the heat exchange cylinder 109 .

[0036] Reference Figure 3-9The transmission mechanism includes a driving bar 120 arranged at both ends of a roller 116, the roller 116 is slidably connected to the side wall of the oven body 100 in a vertical direction, and the side wall of the oven body 100 is rotatably connected to multiple groups of gears 5 117, and the gears 5 117 located on the same side of the oven body 100 are synchronously connected through a group of transmission belts, and the rotating shaft of one group of gears 5 117 is connected to the gear 4 115, and the driving bar 120 is provided with a horizontal slide groove on the side facing the gear 5 117, and the side wall of the gear 5 117 is provided with a pin 121 designed corresponding to the horizontal slide groove of the driving bar 120, and the side wall of the oven body 100 is provided with a gear 3 114 meshing with the gear 2 113, and the gear 3 114 and the gear 4 115 are connected through a gear belt transmission.

[0037] Furthermore, the number of teeth of gear three 114 is less than the number of teeth of gear four 115. It should be noted that, through this design, the rotational speed of gear four 115 and roller 116 is reduced, thereby reducing the frequency of the reciprocating wave motion of roller 116, thereby improving the drying efficiency and reducing the impact on the stability of the drying process of non-woven fabric 200. At the same time, the number of teeth of gear two 113 and gear three 114 can be further reduced. By matching the difference in the number of teeth between gear two 113 and gear one 112 with the difference in the number of teeth between gear three 114 and gear four 115, the rotational speed of gear four 115 and gear five 117 can be further reduced, and the frequency of the wave motion of roller 116 can be reduced.

[0038] Furthermore, the portion of the cold air duct 135 extending to the inner side of the heat exchange tube 109 is of spiral design, and the inner side wall of the heat exchange tube 109 is provided with a plurality of spoiler strips 137 .

[0039] The working process of the waste heat recovery energy-saving oven is as follows:

[0040] When the nonwoven fabric 200 is being dried, it is pulled by external equipment, and the nonwoven fabric 200 is guided together inside the oven body 100 by contact with the plurality of rollers 116 .

[0041] When drying, all electrical appliances are started first. The air intake fan 104 draws the gas through the cold air duct 135, passes through the heating channel 105, and is discharged into the air supply duct 118. The hot air is further blown to the non-woven fabric 200 through the grille inside the oven body 100 by the heating fan 101. After the hot air blows through the non-woven fabric 200, the exhaust gas is further sucked into the exhaust fan 102 through the exhaust pipe 125 via the air intake pipe 110 at the top of the oven body 100, and is discharged to the processing channel 107 through the hot air duct 106. When the airflow passes through the processing channel 107, the airflow is blocked by the driving blade 122 between the hot air duct 106 and the air inlet slot 123, so that the airflow accumulates, thereby pushing the driving blade 122 to rotate slowly, so that the airflow passes through the air inlet slot 123 and enters the rotating ring 124 and then enter the inside of the centrifugal cylinder 108. When the driving blade 122 rotates, the baffle blade 133 and the rotating ring 124 are driven to rotate synchronously through the same set of rotating shafts connected to the baffle blade 133. When the rotating ring 124 rotates to the point where the magnetic pole at the bottom of the rotating ring 124 is the same as the magnetic pole at the top of the piston block 130, the piston block 130 is pushed down by the repulsive force of the magnetic poles, and the solution accumulated in the pressure chamber 129 is squeezed and pumped to the inside of the annular groove 128 through the one-way valve inside the discharge pipe 131, and further sprayed out through the spray hole on the surface of the baffle blade 133, and mixed with the waste heat exhaust gas passing through the treatment channel 107. The sodium carbonate and potassium permanganate solution in the solution can treat the water vapor and volatile harmful substances such as benzene and formaldehyde in the exhaust gas to a certain extent, among which the sodium carbonate Sodium can have a certain adsorption and reaction effect on acidic gases such as water vapor and sulfur dioxide, while potassium permanganate solution can adsorb and oxidize organic particles generated during the drying and heating process of the non-woven fabric 200, thereby realizing primary treatment of the exhaust gas. At the same time, when the exhaust gas after spray treatment passes through the centrifugal cylinder 108, the motor 111 drives the gear 112 and drives the gear 6 126 to rotate through meshing, so that the centrifugal cylinder 108 and the heat exchange cylinder 109 rotate. When the centrifugal cylinder 108 rotates, the exhaust gas and spray mixed gas inside the centrifugal cylinder 108 rotate. At the same time, the surrounding slide 134 can increase the range of action, improve the rotation effect of the exhaust gas and spray mixed gas inside the centrifugal cylinder 108, and under the action of centrifugal force, the denser aerosol rotates. The frequency of contact between the inner wall of the centrifugal cylinder 108 and the inner wall of the centrifugal cylinder 108 and the surrounding slide 134 is increased. At the same time, the condensation effect of the droplets can be improved through the condensation promoter coating on the surface of the surrounding slide 134, and the capture effect of water vapor and liquid mist can be improved. At the same time, the activated carbon filter layer between the exhaust fan 103 and the centrifugal cylinder 108 can further reduce the content of organic particulate matter and water vapor in the exhaust gas entering the exhaust fan 103 through the centrifugal cylinder 108, so that the exhaust gas entering the heat exchange cylinder 109 for heat exchange is purer, and the deposition of particulate matter generated after the non-woven fabric 200 is heated on the walls of the heat exchange cylinder 109 and the cold air duct 135 is reduced, thereby ensuring the heat exchange efficiency of heat recovery and reducing the frequency of cleaning inside the heat exchange cylinder 109, further reducing the operating and maintenance costs.

[0042] It should be noted that when the centrifuge barrel 108 rotates, the inclined design of the inner wall of the centrifuge barrel 108 can enable the accumulated droplets captured by the inner wall of the centrifuge barrel 108 and the surrounding slide 134 to flow along the inclined side wall of the centrifuge barrel 108 toward the processing channel 107 under the action of centrifugal force. By setting a groove between the centrifuge barrel 108 and the rotating ring 124, automatic reflux treatment of the processed material inside the centrifuge barrel 108 can be achieved.

[0043] It should be noted that the coagulation promoter coating surrounding the surface of the slide 134 is an existing technology. The main raw materials include polymer materials that are hydrophilic or can interact with droplets, surfactants, etc. The principle is to set adsorption sites on the coagulation promoter coating, and the adsorption sites can usually be composed of some groups or substances with specific chemical properties or structures, such as polar groups, like hydroxyl groups, carboxyl groups, etc., which can interact with the molecules in the droplets to form adsorption. There are also some substances with special affinities that can specifically combine with the droplet components to be separated and form adsorption. The specific adsorption sites can select different types of coagulation promoter coating materials according to the specific material of the non-woven fabric 200 and the volatile products.

[0044] After the exhaust gas treated by the centrifugal cylinder 108 is discharged into the heat exchange cylinder 109 under the action of the exhaust fan 103, the heat exchange cylinder 109 will also rotate through the transmission of the gear 112, and the hot exhaust gas passing through the heat exchange cylinder 109 will be driven to rotate, which can increase the turbulence degree of the hot exhaust gas in the heat exchange cylinder 109, which can not only promote the uniform distribution and transfer of heat and improve the heat exchange efficiency, but also enable the exhaust gas and the cold air pipe 135 to have more sufficient contact and mixing, reduce local temperature differences, and further improve the heat exchange effect. At the same time, the spoiler strip 137 can increase the contact area with the exhaust gas, and enhance the driving and rotation effect of the exhaust gas. The spirally designed cold air pipe 135 can not only prolong the heat exchange time, but also increase the contact effect between the intake air and the hot exhaust gas, improve the heat exchange efficiency, and then improve the overall heat energy recovery efficiency, reduce the energy required for subsequent heating, and thus reduce the production and processing costs. After the heat exchange, the hot exhaust gas enters the external exhaust gas treatment device through the pipe opened at the end of the heat exchange cylinder 109.

[0045] When the motor 111 rotates, it can drive the gear 2 113 to rotate, and then drive the gear 3 114 to rotate, and further drive the gear 4 115 to rotate at a reduced speed. When the gear 4 115 rotates, it drives one group of gears 5 117 to rotate. The gears 5 117 rotate synchronously through the transmission belt. When the gear 5 117 rotates, it drives the pin 121 to rotate synchronously. When the pin 121 rotates, the pin 121 slides inside the driving bar 120, and through the cooperation with the horizontal slide groove of the driving bar 120, the driving bar 120 is driven to reciprocate in the vertical direction, thereby driving the roller 116 to move in the vertical direction along the side wall of the oven body 100. Reciprocating motion, at the same time, with the design of multiple sets of gears 5 117 and rollers 116, the non-woven fabric 200 is driven to do simple harmonic wave motion inside the oven body 100, so that during the heating and drying process of the non-woven fabric 200 inside the oven body 100, the non-woven fabric 200 moves periodically, which promotes the flow and exchange of hot air around the non-woven fabric 200, helps to better distribute and penetrate the heat to the non-woven fabric 200, and can intermittently change the contact position, reduce the problems of local uneven drying or over-drying that may be caused by long-term fixed contact, thereby improving the quality and efficiency of heating and drying of the non-woven fabric 200.

[0046] It should be noted that, through the design of the rollers 116, in each wave motion cycle of the non-woven fabric 200, there are multiple groups of evenly distributed rollers 116 between the rollers 116 at the highest point and the lowest point, thereby ensuring the supporting effect of the non-woven fabric 200.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A waste heat recovery energy-saving oven, comprising an oven body (100) and a non-woven fabric (200), characterized in that: A heating fan (101) is arranged on the side wall of the oven body (100); a plurality of groups of rollers (116) are arranged inside the oven body (100); a suction fan (102), an exhaust fan (103) and an air intake fan (104) are arranged on the top of the oven body (100); a heating channel (105), a centrifugal cylinder (108) and a heat exchange cylinder (109) are also arranged on the top of the oven body (100); an air intake pipe (125) is arranged at the air intake end of the suction fan (102); the air intake pipe (125) is provided with a plurality of groups of air intake pipes (110) extending into the interior of the oven body (100); and a An exhaust gas treatment mechanism, wherein a motor (111) is disposed on the top of the oven body (100), the output shaft of the motor (111) is connected to a gear 1 (112) and a gear 2 (113), the air inlet end and the air outlet end of the exhaust fan (103) are respectively connected to the centrifugal cylinder (108) and the heat exchange cylinder (109), the air inlet end of the air inlet fan (104) is connected to the heating channel (105), an air supply pipe (118) is connected between the air outlet end of the air inlet fan (104) and the air inlet end of the heating fan (101), and a cold air pipe (135) is disposed on the side wall of the heat exchange cylinder (109), and the cold air pipe (135) is connected to the heating channel (105); The exhaust gas treatment mechanism comprises a treatment channel (107) arranged at the top of the oven body (100); the centrifugal cylinder (108) is rotatably connected to the treatment channel (107); a rotating ring (124) is rotatably connected inside the treatment channel (107); a plurality of groups of flow-blocking blades (133) are connected to the inner side of the rotating ring (124); a driving blade (122) is arranged inside the treatment channel (107); the center of the driving blade (122) is connected to the center of the flow-blocking blade (133) via a group of rotating shafts; a hot air pipe (106) is connected between the exhaust end of the exhaust fan (102) and the treatment channel (107); an air inlet groove (123) is provided in an area of ​​the treatment channel (107) away from the hot air pipe (106); a pressure chamber (129) and a liquid storage chamber (127) are provided inside the treatment channel (107); a piston block is sleeved inside the pressure chamber (129) (130), a spring is arranged between the piston block (130) and the pressure chamber (129), a liquid supply pipe (132) is arranged between the bottom of the liquid storage chamber (127) and the bottom of the pressure chamber (129), a spray hole connected to the side wall of the rotating ring (124) is provided on the surface of the flow blocking blade (133), an annular groove (128) connected to the side wall of the rotating ring (124) is provided inside the processing channel (107), a liquid discharge pipe (131) is arranged between the annular groove (128) and the pressure chamber (129), gear six (126) is arranged on the outer side walls of the centrifugal cylinder (108) and the heat exchange cylinder (109), the gear six (126) is meshed with gear one (112) through a transmission gear arranged on the top of the oven body (100), a surrounding slideway (134) is arranged inside the centrifugal cylinder (108), and a transmission mechanism is also arranged on the surface of the oven body (100); The transmission mechanism comprises a driving bar (120) arranged at both ends of a roller (116); the roller (116) is slidably connected to the side wall of the oven body (100) in a vertical direction; the side wall of the oven body (100) is rotatably connected to a plurality of groups of gears five (117); the gears five (117) located on the same side of the oven body (100) are synchronously connected by a group of transmission belts, and the rotating shaft of one group of gears five (117) is connected to a gear four (115); a horizontal sliding groove is provided on the side of the driving bar (120) facing the gear five (117); a pin shaft (121) designed corresponding to the horizontal sliding groove of the driving bar (120) is provided on the side wall of the gear five (117); a gear three (114) meshing with the gear two (113) is provided on the side wall of the oven body (100); the gear three (114) and the gear four (115) are connected by a gear belt transmission.

2. The waste heat recovery energy-saving oven according to claim 1, characterized in that: The rotating ring (124) and the piston block (130) are constructed of magnets, and the magnetic pole orientation of the piston block (130) is designed to correspond to the magnetic pole orientation distribution of the rotating ring (124).

3. The waste heat recovery energy-saving oven according to claim 1, characterized in that: The surrounding slideway (134) is of a spiral design, a coagulation promoter coating is provided on the surface of the surrounding slideway (134), and the inner side wall of the centrifugal cylinder (108) is of an inclined design toward the processing channel (107).

4. The waste heat recovery energy-saving oven according to claim 1, characterized in that: An activated carbon filter layer is provided between the centrifugal cylinder (108) and the exhaust fan (103), and an activated carbon filter layer is also provided between the exhaust fan (103) and the heat exchange cylinder (109).

5. The waste heat recovery energy-saving oven according to claim 1, characterized in that: The number of teeth of gear three (114) is less than the number of teeth of gear four (115).

6. The waste heat recovery energy-saving oven according to claim 1, characterized in that: The portion of the cold air pipe (135) extending to the inner side of the heat exchange tube (109) is of spiral design, and the inner side wall of the heat exchange tube (109) is provided with a plurality of groups of spoiler strips (137).

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