A kiln with multi-stage heating function

Abstract

The invention discloses a kiln with a multi-stage heating function, which relates to the technical field of kilns and comprises a support platform, a furnace body is arranged on the top of the support platform, a placement plate is arranged on one side of the top of the support platform, and a water tank is arranged on one side of the support platform, and an exhaust pipe is connected through one side of the top of the furnace body, and a blower is arranged inside the exhaust pipe, and a purification box is fixedly installed on one side of the top of the furnace body, and the exhaust pipe is connected through the purification box, and a cover plate is arranged on the top of the purification box, and a sealing gasket is arranged on the bottom of the cover plate, and also comprises: a heating box, which is fixedly installed on the top of the furnace body on one side of the purification box; the material can be heated by the waste heat of the exhaust gas, and the material can be heated in different directions, and the material can be heated in multiple stages by the heating component cooperating with the heating structure of the furnace body itself, which can shorten the firing time of the material, improve the heating efficiency of the material, and improve the work efficiency and practicality.

Description

Technical Field

[0001] The invention relates to the technical field of kilns, and in particular to a kiln with a multi-stage heating function. Background Art

[0002] A kiln is a furnace used to fire ceramics and sculptures or to fuse enamel to the surface of metal objects. It is usually made of kiln bricks and can be made into various sizes according to needs. It can be operated by combustible gas, oil or electricity.

[0003] For example, an electric kiln furnace body rapid heating structure with announcement number CN217442228U can collect waste gas and filter some impurities contained in waste gas through the coordinated arrangement of the air inlet hole, air collecting trough, blower, air inlet pipe, exhaust pipe and filter screen after one heating work is completed, and the filtered waste gas is transported to the inside of the heating box through the transport pipe, and the waste gas is heated by the electric heating wire. When the next heating work is carried out, the first control valve is opened, and the heated waste gas is transported to the inside of the waste heat pipe through the guide hopper and the three-way pipe, and then sprayed out through the waste heat cover, thereby The waste heat can be used for the material that needs to be heated next time, thereby increasing the heating speed of the material that needs to be heated and heating the material quickly. However, in actual use, the waste heat in the exhaust gas can be used to preheat the material. When preheating the material, the hot air is only sprayed above the material. When heating the material, the hot air can only stay above the material. After heating the bottom of the material, it is difficult for the hot air to reach the side and bottom of the material, and the material cannot be heated evenly. The heating efficiency of the material is low and there are certain defects in use.

[0004] So we proposed a kiln with multi-stage heating function to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a kiln with a multi-stage heating function to solve the problem that the waste heat in the exhaust gas can be used to preheat the material proposed in the above background technology. When the material is preheated, the hot gas is only sprayed above the material. When the material is heated, the hot gas can only stay above the material. After heating the bottom of the material, the hot gas is difficult to reach the side and bottom of the material, and the material cannot be heated evenly, resulting in low heating efficiency for the material.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kiln with a multi-stage heating function, comprising a support platform, a furnace body is arranged on the top of the support platform, a placement plate is arranged on one side of the top of the support platform, and a water tank is arranged on one side of the support platform, and an exhaust pipe is connected through one side of the top of the furnace body, and a blower is arranged inside the exhaust pipe, and a purification box is fixedly installed on one side of the top of the furnace body, and the exhaust pipe is connected through the purification box, and a cover plate is arranged on the top of the purification box, and a sealing gasket is arranged at the bottom of the cover plate;

[0007] Also includes:

[0008] The heating box is fixedly installed on the top of the furnace body and located on one side of the purification box. A connecting pipe is connected through the top of one side of the purification box, and the end of the connecting pipe away from the purification box is connected through the water tank. At the same time, an air outlet is connected through the top side of the water tank, and a connecting pipe is connected through the bottom between the purification box and the heating box, and an air outlet pipe is connected through the side of the heating box away from the purification box, and the air outlet pipe is connected through the furnace body;

[0009] A heating assembly is arranged inside and on one side of the upper part of the furnace body, and the heating assembly includes a driving motor;

[0010] Positioning components are arranged on both sides of the connection between the purification box and the cover plate;

[0011] A driving motor is fixedly installed on the top of the furnace body and on one side of the air outlet pipe. A rotating shaft is fixedly installed on the output end of the driving motor, and limiting rods are symmetrically installed at the lower part of the inner part of the air outlet pipe, and the two limiting rods are rotatably connected with the rotating rod inside. At the same time, a rotating blade is fixedly installed on the bottom of the rotating rod, and a second bevel gear is fixedly installed on the top of the rotating rod. One end of the rotating shaft passes through the air outlet pipe and is rotatably connected to the air outlet pipe, and a first bevel gear is fixedly installed on the end of the rotating shaft away from the driving motor, and the first bevel gear is meshingly connected with the second bevel gear.

[0012] Preferably, a support frame is rotatably connected to the side of the rotating shaft outside close to the driving motor, and the support frame is fixedly connected to the furnace body, and a third bevel gear is fixedly installed on the side of the supporting frame outside the rotating shaft, and at the same time, an output shaft is rotatably connected to the furnace body below the rotating shaft, and a fourth bevel gear is fixedly installed on the top of the output shaft, and the fourth bevel gear is meshingly connected to the third bevel gear, and a positioning frame is fixedly installed on the outside of the exhaust pipe below, and the output shaft is rotatably connected to the positioning frame.

[0013] By adopting the above technical solution, the output shaft can be driven to rotate while the driving motor is running.

[0014] Preferably, a rotating gear is fixedly installed at the bottom end of the output shaft, and the outer part of the rotating gear is meshedly connected with an inner gear ring, and the bottom of the outlet pipe is rotatably connected to a U-shaped tube through a rotating joint, and at the same time, arc blocks are symmetrically installed at the bottom of the inner gear ring, and the two arc blocks are fixedly connected to the U-shaped tube, and a plurality of air outlets are penetrated and connected to the inner side of the U-shaped tube, and both bottom ends of the U-shaped tube are penetrated and connected with air jets.

[0015] By adopting the above technical solution, the U-shaped tube can be driven to rotate, thereby fully heating the material.

[0016] Preferably, a fixing ring is slidably connected to the outside of the inner gear ring, and two sets of fixing rods are symmetrically installed on the top of the fixing ring, and the two fixing rods are fixedly connected to the furnace body. At the same time, a limiting ring is fixedly installed on the outside of the inner gear ring, and an annular groove is opened and closed on the inner side of the fixing ring, and the limiting ring is slidably connected to the annular groove.

[0017] By adopting the above technical solution, the rotation of the inner gear ring is supported and the stability of the rotation of the inner gear ring is improved.

[0018] Preferably, movable blocks are symmetrically slidably connected to the outer sides of the U-shaped tube, and a movable plate is fixedly installed below the two movable blocks, and a plurality of through holes are opened through the top of the movable plate, and the inner diameter of the through holes is consistent with the inner diameter of the upper air outlet.

[0019] By adopting the above technical solution, the air outlet above the U-shaped tube can be closed after the movable plate moves.

[0020] Preferably, a support rod is fixedly installed on the upper side where the two movable blocks are close to each other, and a positioning block is symmetrically slidably connected to the outer side of the support rod, and the positioning block is fixedly connected to the U-shaped tube. At the same time, a telescopic spring is sleeved on the outer side of the support rod, and one end of the telescopic spring is fixedly connected to one side of the positioning block, and a connecting block is fixedly installed on the other end of the telescopic spring, and the connecting block is fixedly connected to the support rod.

[0021] By adopting the above technical solution, the support rod can be automatically reset after moving.

[0022] Preferably, a mounting rod is fixedly mounted on one side of the support rod close to the fixing ring, and a ball is hingedly mounted on one end of the mounting rod away from the support rod, and a plurality of protrusions are fixedly mounted on the outside of the fixing ring, and the ball is rotatably connected to the protrusion.

[0023] By adopting the above technical solution, the movable plate can move back and forth during the rotation of the U-shaped tube.

[0024] Preferably, the positioning assembly includes two groups of rods symmetrically installed on both sides of the cover plate, and mounting blocks are fixedly installed on both sides of the purification box below the two groups of rods, and a connecting groove is opened through the top of the mounting block, and the rod is adaptively connected to the connecting groove, and a positioning rod is slidably connected to one side of the mounting block, and a handle is fixedly installed on one end of the positioning rod, and a positioning groove is opened on one side of the rod, and the positioning rod is snap-connected to the positioning groove, and a reset spring is sleeved on one side of the outside of the positioning rod, and one end of the reset spring is fixedly connected to the handle, and the other end of the reset spring is fixedly connected to the mounting block.

[0025] By adopting the above technical solution, it is convenient for the staff to disassemble and assemble the cover plate, and to clean the inside of the purification box to avoid blockage that affects the passage of gas.

[0026] Compared with the prior art, the invention has the following beneficial effects: the kiln with multi-stage heating function is provided with heating components inside and on one side of the upper part of the furnace body, and the material can be heated by the waste heat of the exhaust gas, and the material can be heated in different directions. The heating components can be used in conjunction with the heating structure of the furnace body to heat the material in multiple stages, which can shorten the material firing time, improve the material heating efficiency, and improve the work efficiency and practicality;

[0027] 1. A heating assembly is arranged inside and on one side of the upper part of the furnace body. A plurality of placement plates are arranged on the support table to place materials. The placement plates are breathable mesh plates. The exhaust gas generated by the burning of the furnace body enters the purification box through the exhaust pipe and the blower. The purification box can purify the exhaust gas. Then, part of the hot gas enters the water tank through the connecting pipe, and the water inside the water tank can be heated to recover the waste heat. Another part of the hot gas enters the heating box through the connecting pipe. A heating wire is arranged inside the heating box to further heat the hot gas. Then, the hot gas enters the U-shaped tube through the outlet pipe and the rotary joint. The driving motor is started to drive the rotating shaft to rotate. After the rotating shaft rotates, the first bevel gear and the second bevel gear are meshed to accelerate the transmission of the rotating rod, drive the rotating blade to rotate, and accelerate the outflow of the hot gas. The hot gas can heat the top and both sides of the material through several outlets on the U-shaped tube, and through the spray The air port conveys the hot air to the bottom of the placement plate to heat the bottom of the material. While the rotating shaft is rotating, the output shaft is decelerated through the meshing of the third bevel gear and the fourth bevel gear. Then, the meshing of the rotating gear and the inner ring drives the inner ring to rotate. After the inner ring rotates, the arc block drives the U-shaped tube to rotate around the material, so that the hot air can fully reach the top and side of the material, which can improve the heating efficiency of the material. During the rotation of the inner ring, the limit ring is driven to slide on the annular groove on the inner side of the fixed ring to support the rotation of the inner ring. The heating component can heat the material with the waste heat of the exhaust gas, and the material can be heated in different directions. The heating component cooperates with the heating structure of the furnace body itself to heat the material in multiple stages, which can shorten the burning time of the material, improve the heating efficiency of the material, and improve work efficiency and practicality.

[0028] 2. When hot air is ejected from the air outlet on the U-shaped tube, since the air outlets are arranged on the top and bottom of the U-shaped tube, the ejection amount of hot air is not enough for multiple air outlets to eject at the same time. The U-shaped tube can drive the movable plate to rotate together during the rotation process. During the rotation of the movable plate, the fixed ring is fixed by the fixed rod and does not rotate. During the annular rotation of the movable plate, the ball on one side of the mounting rod can roll on the convex block. After the ball rolls, the mounting rod can be lifted up, and then the support rod can be driven to slide on the positioning block, and the two telescopic springs can be compressed or stretched to drive the movable plate and the movable block to move. The movable plate In the initial state, the through hole is aligned with the upper air outlet of the U-shaped tube, and hot air can be ejected from the upper part of the U-shaped tube. After the movable plate moves, the through hole and the upper air outlet are staggered, so that the upper air outlet can be kept closed, and the hot air can be ejected through the lower air outlet. The rotation of the U-shaped tube can make the upper air outlet intermittently eject air, so that when multiple air outlets are set to eject hot air, a sufficient amount of hot air can be ejected from the lower air outlet, so that different directions of the material can be heated, the heating efficiency of the material can be guaranteed, the waste heat of the exhaust gas can be fully utilized, and the heating efficiency can be improved;

[0029] 3. The purification box filters the exhaust gas. There is a certain amount of dust in the exhaust gas. When the dust causes the internal filtering structure of the purification box to be blocked, the handle can be pulled to drive the positioning rod to move. The movement of the positioning rod can stretch the reset spring, so that the positioning rod is disengaged from the positioning groove on the plug rod, so that the plug rod loses its limit, and the cover plate loses its limit. The cover plate can be opened to clean the purification box. When installing the cover plate, the plug rod is inserted into the connecting groove. Since a slope is set on the lower side of the plug rod, the insertion of the plug rod can push the positioning rod to move. The cover plate is covered on the purification box and compresses the sealing gasket, so that the positioning groove on the plug rod is aligned with the positioning rod. Under the action of the reset spring, the positioning rod and the positioning groove are engaged to position the cover plate, which is convenient for the staff to disassemble and assemble the cover plate, and it is convenient to clean the inside of the purification box to avoid blockage affecting the passage of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the enlarged structure of the heating component of the present invention;

[0032] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0033] Figure 4 It is a schematic diagram of the U-shaped tube structure of the present invention;

[0034] Figure 5 This is a schematic structural diagram of the U-shaped tube of the present invention from another viewing angle;

[0035] Figure 6 It is a schematic diagram of the cross-sectional structure of the fixing ring of the present invention;

[0036] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0037] Figure 8 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle C area;

[0038] Fig. 9 For the present invention Figure 4 Schematic diagram of the enlarged structure of the middle D area;

[0039] Fig.10 This is a schematic diagram of the structure of the positioning component of the present invention;

[0040] Fig.11 This is a schematic diagram of the connection structure between the arc block and the U-shaped rod of the present invention;

[0041] Fig.12 This is a schematic diagram of the connection structure between the positioning assembly of the present invention, the purification box and the cover plate.

[0042] In the figure: 1, support platform; 101, furnace body; 1011, placement plate; 102, water tank; 1021, air outlet; 103, exhaust pipe; 104, purification box; 1041, connecting pipe; 105, cover plate; 106, heating box; 107, connecting pipe; 108, air outlet pipe; 2, heating component; 201, drive motor; 202, rotating shaft; 203, limit rod; 204, rotating rod; 205, rotating blade; 206, first bevel gear; 207, second bevel gear; 208, support frame; 209, output shaft; 210, third bevel gear; 211, fourth bevel gear; 212, positioning frame; 213, rotating Gear; 214, inner gear ring; 215, U-shaped tube; 216, arc block; 217, air outlet; 218, jet nozzle; 219, fixed rod; 220, fixed ring; 221, limit ring; 222, annular groove; 223, movable block; 224, movable plate; 225, through hole; 226, support rod; 227, positioning block; 228, telescopic spring; 229, connecting block; 230, mounting rod; 231, ball; 232, bump; 3, positioning assembly; 301, plug rod; 302, mounting block; 303, connecting groove; 304, positioning rod; 305, handle; 306, positioning groove; 307, reset spring. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0044] See also Figure 1-Figure 12 The present invention provides a technical solution: a kiln with a multi-stage heating function, comprising a support platform 1, a furnace body 101 is arranged on the top of the support platform 1, and a placement plate 1011 is arranged on one side of the top of the support platform 1, and a water tank 102 is arranged on one side of the support platform 1, and an exhaust pipe 103 is connected through one side of the top of the furnace body 101, and a blower is arranged inside the exhaust pipe 103, and a purification box 104 is fixedly installed on one side of the top of the furnace body 101, and the exhaust pipe 103 is connected through the purification box 104, and a cover plate 105 is arranged on the top of the purification box 104, and a sealing gasket is arranged at the bottom of the cover plate 105;

[0045] Also includes:

[0046] The heating box 106 is fixedly installed on the top of the furnace body 101 and located on one side of the purification box 104. A connecting pipe 1041 is connected through the top of one side of the purification box 104, and the end of the connecting pipe 1041 away from the purification box 104 is connected through the water tank 102. At the same time, an air outlet 1021 is connected through the top side of the water tank 102, and a connecting pipe 107 is connected through the bottom between the purification box 104 and the heating box 106, and an air outlet pipe 108 is connected through the side of the heating box 106 away from the purification box 104, and the air outlet pipe 108 is connected through the furnace body 101;

[0047] The heating component 2 is arranged inside and on one side of the upper part of the furnace body 101, and the heating component 2 includes a driving motor 201;

[0048] The driving motor 201 is fixedly mounted on the top of the furnace body 101 and located on one side of the gas outlet pipe 108. A rotating shaft 202 is fixedly mounted on the output end of the driving motor 201, and a limiting rod 203 is symmetrically mounted on the lower part of the gas outlet pipe 108, and a rotating rod 204 is rotatably connected to the inside of the two limiting rods 203, and a rotating blade 205 is fixedly mounted on the bottom of the rotating rod 204, and a second bevel gear 207 is fixedly mounted on the top of the rotating rod 204, and one end of the rotating shaft 202 passes through the gas outlet pipe 108 and is rotatably connected to the gas outlet pipe 108, and a first bevel gear 206 is fixedly mounted on the end of the rotating shaft 202 away from the driving motor 201, and the first bevel gear 206 is meshedly connected with the second bevel gear 207;

[0049] A support frame 208 is rotatably connected to the side of the rotating shaft 202 near the driving motor 201, and the support frame 208 is fixedly connected to the furnace body 101, and a third bevel gear 210 is fixedly installed on the side of the support frame 208 outside the rotating shaft 202, and an output shaft 209 is rotatably connected to the furnace body 101 below the rotating shaft 202, and a fourth bevel gear 211 is fixedly installed on the top of the output shaft 209, and the fourth bevel gear 211 is meshed with the third bevel gear 210, and a positioning frame 212 is fixedly installed on the outside of the outlet pipe 108, and the output shaft 209 is rotatably connected to the positioning frame 212;

[0050] A rotating gear 213 is fixedly installed at the bottom end of the output shaft 209, and the outer part of the rotating gear 213 is meshedly connected with an inner gear ring 214, and the bottom of the outlet pipe 108 is rotatably connected with a U-shaped tube 215 through a rotating joint, and arc blocks 216 are symmetrically installed at the bottom of the inner gear ring 214, and two arc blocks 216 are fixedly connected to the U-shaped tube 215, and the inner side of the U-shaped tube 215 is penetrated and connected with a plurality of air outlets 217, and the two bottom ends of the U-shaped tube 215 are penetrated and connected with air jets 218;

[0051] The outside of the inner gear ring 214 is slidably connected to a fixed ring 220, and two sets of fixed rods 219 are symmetrically installed on the top of the fixed ring 220, and the two fixed rods 219 are fixedly connected to the furnace body 101. At the same time, a limiting ring 221 is fixedly installed on the outside of the inner gear ring 214, and an annular groove 222 is opened and closed on the inner side of the fixed ring 220, and the limiting ring 221 is slidably connected to the annular groove 222.

[0052] Embodiment 1: Figure 1-Figure 7 As shown, a heating assembly 2 is arranged inside and on one side of the upper part of the furnace body 101, and a plurality of placing plates 1011 are arranged on the support platform 1 to place materials. The placing plates 1011 are air-permeable mesh plates. The waste gas generated by the burning of the furnace body 101 enters the purification box 104 through the exhaust pipe 103 and the blower. The purification box 104 can purify the waste gas. After that, part of the hot gas enters the water tank 102 through the connecting pipe 1041, and the water inside the water tank 102 can be heated to recover the waste heat. The other part of the hot gas passes through the connecting pipe 107. The hot air enters the heating box 106, and a heating wire is arranged inside the heating box 106 to further heat the hot air. Then, the hot air enters the U-shaped tube 215 through the outlet pipe 108 and the rotary joint, and the driving motor 201 is started to drive the rotating shaft 202 to rotate. After the rotating shaft 202 rotates, the first bevel gear 206 and the second bevel gear 207 are engaged to accelerate the transmission of the rotating rod 204, drive the rotating blade 205 to rotate, and accelerate the outflow of the hot air. The hot air can pass through a plurality of outlets 217 on the U-shaped tube 215 to the top and The two sides are heated, and the hot air is transported to the bottom of the placing plate 1011 through the air jet 218 to heat the bottom of the material. While the rotating shaft 202 is rotating, the output shaft 209 is decelerated through the meshing of the third bevel gear 210 and the fourth bevel gear 211. Then, the meshing of the rotating gear 213 and the inner gear ring 214 drives the inner gear ring 214 to rotate. After the inner gear ring 214 rotates, it drives the U-shaped tube 215 to rotate around the material through the arc block 216, so that the hot air can fully reach the top and side of the material. , which can improve the heating efficiency of the material, and the inner gear ring 214 drives the limit ring 221 to slide on the annular groove 222 on the inner side of the fixed ring 220 during rotation, thereby supporting the rotation of the inner gear ring 214. The heating component 2 can heat the material through the waste heat of the exhaust gas, and can heat the material in different directions. The heating component 2 cooperates with the heating structure of the furnace body 101 itself to perform multi-stage heating on the material, which can shorten the material firing time, improve the material heating efficiency, and improve work efficiency and practicality.

[0053] The U-shaped tube 215 is symmetrically slidably connected to two sides of the outer side with movable blocks 223, and a movable plate 224 is fixedly installed below the two movable blocks 223, and a plurality of through holes 225 are formed through the top of the movable plate 224, and the inner diameter of the through hole 225 is consistent with the inner diameter of the upper air outlet 217;

[0054] A support rod 226 is fixedly installed on the upper side of the two movable blocks 223 that are close to each other, and a positioning block 227 is symmetrically slidably connected to the outer side of the support rod 226, and the positioning block 227 is fixedly connected to the U-shaped tube 215. At the same time, a telescopic spring 228 is sleeved on the outer side of the support rod 226, and one end of the telescopic spring 228 is fixedly connected to the positioning block 227 on one side, and a connecting block 229 is fixedly installed on the other end of the telescopic spring 228, and the connecting block 229 is fixedly connected to the support rod 226;

[0055] A mounting rod 230 is fixedly installed on one side of the support rod 226 close to the fixing ring 220, and a ball 231 is hinged on one end of the mounting rod 230 away from the support rod 226, and a plurality of protrusions 232 are fixedly installed on the outside of the fixing ring 220, and the ball 231 is rotatably connected to the protrusion 232.

[0056] Embodiment 2: Figure 2 , Figure 4-Figure 6 , Figure 8-Figure 9 and Fig.11 As shown, when hot air is ejected from the air outlet 217 on the U-shaped tube 215, since the air outlet 217 is arranged on the top and bottom of the U-shaped tube 215, the ejection amount of hot air is not enough for multiple air outlets 217 to eject air at the same time. The U-shaped tube 215 can drive the movable plate 224 to rotate together during the rotation process. During the rotation process of the movable plate 224, the fixed ring 220 is fixed by the fixed rod 219 and does not rotate. During the circular rotation process of the movable plate 224, the ball 231 on one side of the mounting rod 230 can roll on the protrusion 232. After the ball 231 rolls, the mounting rod 230 can be lifted up, and then the support rod 226 can be driven to slide on the positioning block 227, and the two telescopic springs 228 can be compressed or stretched to drive the movable plate 224 and the movable block 223 moves, and the movable plate 224 has the through hole 225 aligned with the upper air outlet 217 of the U-shaped tube 215 in the initial state, and hot air can be sprayed out from the upper part of the U-shaped tube 215. After the movable plate 224 moves, the through hole 225 and the upper air outlet 217 are staggered, so that the upper air outlet 217 can be kept closed, and the hot air can be sprayed out through the lower air outlet 217. The upper air outlet 217 can be intermittently sprayed through the rotation of the U-shaped tube 215, so that when multiple air outlets 217 are set to spray hot air, enough hot air can be sprayed out from the lower air outlet 217, so that different directions of the material can be heated, the heating efficiency of the material can be guaranteed, the waste heat of the exhaust gas can be fully utilized, and the heating efficiency can be improved.

[0057] Positioning components 3 are arranged on both sides of the connection between the purification box 104 and the cover plate 105;

[0058] The positioning assembly 3 includes two groups of insertion rods 301 symmetrically installed on both sides of the cover plate 105, and mounting blocks 302 are fixedly installed on both sides of the purification box 104 below the two groups of insertion rods 301, and a connecting groove 303 is opened through the top of the mounting block 302, and the insertion rod 301 is adaptively connected to the connecting groove 303, and a positioning rod 304 is slidably connected to one side of the mounting block 302, and a handle 305 is fixedly installed on one end of the positioning rod 304, and a positioning groove 306 is opened on one side of the insertion rod 301, and the positioning rod 304 is snap-connected with the positioning groove 306, and a return spring 307 is sleeved on one side of the outer side of the positioning rod 304, and one end of the return spring 307 is fixedly connected to the handle 305, and the other end of the return spring 307 is fixedly connected to the mounting block 302.

[0059] Embodiment 3: Figure 1 , Fig.10 and Fig.12 As shown, the purification box 104 filters the exhaust gas, and there is a certain amount of dust in the exhaust gas. When the dust causes the internal filtering structure of the purification box 104 to be blocked, the handle 305 can be pulled to drive the positioning rod 304 to move. The movement of the positioning rod 304 can stretch the reset spring 307, so that the positioning rod 304 is separated from the positioning groove 306 on the insertion rod 301, so that the insertion rod 301 loses its limit, and the cover plate 105 loses its limit. The cover plate 105 can be opened to clean the purification box 104. When installing the cover plate 105, the insertion rod 301 Inserted into the connecting groove 303, since a slope is set on the lower side of the insertion rod 301, the insertion of the insertion rod 301 can push the positioning rod 304 to move, and the cover 105 covers the purification box 104 and compresses the sealing gasket, so that the positioning groove 306 on the insertion rod 301 is aligned with the positioning rod 304, and under the action of the reset spring 307, the positioning rod 304 and the positioning groove 306 are engaged to position the cover 105, thereby facilitating the staff to disassemble and assemble the cover 105, and facilitate cleaning of the inside of the purification box 104 to avoid blockage affecting the passage of gas.

[0060] Working principle: When using the kiln with multi-stage heating function, first, according to Figure 1-Figure 12As shown, a plurality of placing plates 1011 are arranged on the support platform 1 to place materials, and the placing plates 1011 are air-permeable mesh plates. The exhaust gas generated by the firing of the furnace body 101 enters the purification box 104 through the exhaust pipe 103 and the blower, and the purification box 104 can purify the exhaust gas. Then, part of the hot gas enters the water tank 102 through the connecting pipe 1041, and the water inside the water tank 102 can be heated to recover the waste heat. Another part of the hot gas enters the heating box 106 through the connecting pipe 107. A heating wire is arranged inside the heating box 106 to further heat the hot gas. Then, the hot gas enters the U-shaped tube 215 through the exhaust pipe 108 and the rotary joint, and the driving motor 201 is started to drive the rotating shaft 202 to rotate. After the rotating shaft 202 rotates, the first bevel gear 206 and the second bevel gear 207 are meshed to accelerate the transmission of the rotating rod 204, thereby driving the rotating blade 2 05 rotates to speed up the outflow of hot air. The hot air can heat the top and both sides of the material through a plurality of air outlets 217 on the U-shaped tube 215, and the hot air is transported to the bottom of the placement plate 1011 through the air jet 218 to heat the bottom of the material. While the rotating shaft 202 rotates, the output shaft 209 is decelerated through the meshing of the third bevel gear 210 and the fourth bevel gear 211, and then the meshing of the rotating gear 213 and the inner gear ring 214 drives the inner gear ring 214 to rotate. After the inner gear ring 214 rotates, the U-shaped tube 215 is driven to rotate around the material through the arc block 216, so that the hot air can fully reach the top and sides of the material, which can improve the heating efficiency of the material. In the process of the rotation of the inner gear ring 214, the limit ring 221 is driven to slide on the annular groove 222 on the inner side of the fixed ring 220 to support the rotation of the inner gear ring 214;

[0061] When hot air is ejected from the air outlet 217 on the U-shaped tube 215, since the air outlet 217 is arranged on the upper and lower parts of the U-shaped tube 215, the ejection amount of hot air is not enough for multiple air outlets 217 to eject air at the same time. The U-shaped tube 215 can drive the movable plate 224 to rotate together during the rotation process. During the rotation process of the movable plate 224, the fixed ring 220 is fixed by the fixed rod 219 and does not rotate. During the annular rotation process of the movable plate 224, the ball 231 on one side of the mounting rod 230 can roll on the protrusion 232. After the ball 231 rolls, the mounting rod 230 can be lifted up, so that the movable plate 224 can rotate. The support rod 226 is driven to slide on the positioning block 227, and the two telescopic springs 228 can be compressed or stretched to drive the movable plate 224 and the movable block 223 to move. In the initial state, the through hole 225 of the movable plate 224 is aligned with the air outlet 217 above the U-shaped tube 215, and hot air can be sprayed out from the top of the U-shaped tube 215. After the movable plate 224 moves, the through hole 225 and the upper air outlet 217 are staggered, so that the upper air outlet 217 can be kept closed, and the hot air can be sprayed out through the lower air outlet 217. The upper air outlet 217 can be made closed through the rotation of the U-shaped tube 215. 7 performs intermittent jetting, thereby ensuring that when multiple air outlets 217 are provided to spray hot air, a sufficient amount of hot air can be sprayed out from the lower air outlet 217, and the purification box 104 filters the exhaust gas. There is a certain amount of dust in the exhaust gas. When the dust causes the internal filtering structure of the purification box 104 to be blocked, the handle 305 can be pulled to drive the positioning rod 304 to move. The movement of the positioning rod 304 can stretch the reset spring 307, so that the positioning rod 304 is separated from the positioning groove 306 on the insertion rod 301, so that the insertion rod 301 loses its limit, and the cover plate 105 loses its limit, and the cover plate 105 can be opened. To clean the purification box 104, when installing the cover 105, the rod 301 is inserted into the connecting groove 303. Since a slope is set on the lower side of the rod 301, the insertion of the rod 301 can push the positioning rod 304 to move. The cover 105 covers the purification box 104 and compresses the sealing gasket, so that the positioning groove 306 on the rod 301 is aligned with the positioning rod 304. Under the action of the return spring 307, the positioning rod 304 and the positioning groove 306 are engaged to position the cover 105, thereby facilitating the staff to disassemble and assemble the cover 105 and clean the inside of the purification box 104.

[0062] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0063] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A kiln with a multi-stage heating function, comprising a support platform (1), a furnace body (101) being arranged on the top of the support platform (1), a placement plate (1011) being arranged on one side of the top of the support platform (1), a water tank (102) being arranged on one side of the support platform (1), an exhaust pipe (103) being connected through one side of the top of the furnace body (101), a blower being arranged inside the exhaust pipe (103), a purification box (104) being fixedly mounted on one side of the top of the furnace body (101), the exhaust pipe (103) being connected through one side of the purification box (104), a cover plate (105) being arranged on the top of the purification box (104), and a sealing gasket being arranged at the bottom of the cover plate (105); It is characterized in that Also includes: A heating box (106) is fixedly mounted on the top of the furnace body (101) and located on one side of the purification box (104); an air outlet pipe (108) is connected through a side of the heating box (106) away from the purification box (104); A heating component (2) is arranged inside and on an upper side of the furnace body (101), the heating component (2) comprising a driving motor (201), a rotating shaft (202) and an output shaft (209); A rotating gear (213) is fixedly mounted on the bottom end of the output shaft (209), and the outer portion of the rotating gear (213) is meshedly connected to an inner gear ring (214), and the bottom of the air outlet pipe (108) is rotatably connected to a U-shaped tube (215) via a rotating joint, and arc blocks (216) are symmetrically mounted on the bottom of the inner gear ring (214), and two of the arc blocks (216) are fixedly connected to the U-shaped tube (215), and the inner side of the U-shaped tube (215) is penetrated and connected to a plurality of air outlets (217), and both bottom ends of the U-shaped tube (215) are penetrated and connected to air jets (218); The U-shaped tube (215) is symmetrically and slidably connected to movable blocks (223) on both sides of its exterior, and a movable plate (224) is fixedly installed below the two movable blocks (223), and a plurality of through holes (225) are formed through the top of the movable plate (224), and the inner diameter of the through holes (225) is consistent with the inner diameter of the upper air outlet (217); A support rod (226) is fixedly installed on the upper side of the two movable blocks (223) that are close to each other, and a positioning block (227) is symmetrically slidably connected to the outer side of the support rod (226), and the positioning block (227) is fixedly connected to the U-shaped tube (215). At the same time, a telescopic spring (228) is sleeved on the outer side of the support rod (226), and one end of the telescopic spring (228) is fixedly connected to the positioning block (227) on one side, and a connecting block (229) is fixedly installed on the other end of the telescopic spring (228), and the connecting block (229) is fixedly connected to the support rod (226).

2. The kiln with multi-stage heating function according to claim 1, characterized in that: A support frame (208) is rotatably connected to a side of the rotating shaft (202) close to the driving motor (201), and the support frame (208) is fixedly connected to the furnace body (101). A third bevel gear (210) is fixedly installed on the side of the support frame (208) outside the rotating shaft (202), and an output shaft (209) is rotatably connected to the furnace body (101) below the rotating shaft (202). A fourth bevel gear (211) is fixedly installed on the top of the output shaft (209), and the fourth bevel gear (211) is meshedly connected to the third bevel gear (210). A positioning frame (212) is fixedly installed on the outside of the outlet pipe (108), and the output shaft (209) is rotatably connected to the positioning frame (212).

3. The kiln with multi-stage heating function according to claim 1, characterized in that: A connecting pipe (1041) is connected through the top of one side of the purification box (104), and the end of the connecting pipe (1041) away from the purification box (104) is connected through the water tank (102). At the same time, an air outlet (1021) is connected through the top of the water tank (102). A connecting pipe (107) is connected through the bottom between the purification box (104) and the heating box (106), and the air outlet pipe (108) is connected through the furnace body (101).

4. The kiln with multi-stage heating function according to claim 1, characterized in that: The outer part of the inner gear ring (214) is slidably connected to a fixing ring (220), and two groups of fixing rods (219) are symmetrically installed on the top of the fixing ring (220), and the two fixing rods (219) are fixedly connected to the furnace body (101), and at the same time, a limiting ring (221) is fixedly installed on the outer part of the inner gear ring (214), and an annular groove (222) is opened and closed on the inner side of the fixing ring (220), and the limiting ring (221) is slidably connected to the annular groove (222).

5. The kiln with multi-stage heating function according to claim 1, characterized in that: The positioning components (3) are arranged on both sides of the connection between the purification box (104) and the cover plate (105).

6. The kiln with multi-stage heating function according to claim 1, characterized in that: A driving motor (201) is fixedly mounted on the top of the furnace body (101) and located on one side of the air outlet pipe (108); a rotating shaft (202) is fixedly mounted on the output end of the driving motor (201); and limiting rods (203) are symmetrically mounted inside and below the air outlet pipe (108); and the two limiting rods (203) are rotatably connected to rotating rods (204) inside, and rotating blades (205) are fixedly mounted on the bottom of the rotating rods (204); and a second bevel gear (207) is fixedly mounted on the top of the rotating rods (204); and one end of the rotating shaft (202) passes through the air outlet pipe (108) and is rotatably connected to the air outlet pipe (108); and a first bevel gear (206) is fixedly mounted on one end of the rotating shaft (202) away from the driving motor (201); and the first bevel gear (206) is meshingly connected to the second bevel gear (207).

7. The kiln with multi-stage heating function according to claim 1, characterized in that: A mounting rod (230) is fixedly mounted on one side of the support rod (226) close to the fixing ring (220), and a ball (231) is hingedly connected to one end of the mounting rod (230) away from the support rod (226), and a plurality of protrusions (232) are fixedly mounted on the outside of the fixing ring (220), and the ball (231) is rotatably connected to the protrusion (232).

8. The kiln with multi-stage heating function according to claim 5, characterized in that: The positioning assembly (3) comprises two groups of insertion rods (301) symmetrically mounted on both sides of the cover plate (105), and mounting blocks (302) are fixedly mounted below the two groups of insertion rods (301) on both sides of the purification box (104), and a connecting groove (303) is formed through the top of the mounting block (302), and the insertion rods (301) are adaptively connected to the connecting groove (303), and a positioning rod (304) is slidably connected to one side of the mounting block (302), and the A handle (305) is fixedly mounted on one end of the positioning rod (304), and a positioning groove (306) is provided on one side of the insertion rod (301), and the positioning rod (304) is engaged with the positioning groove (306), and a return spring (307) is sleeved on one side of the outer side of the positioning rod (304), and one end of the return spring (307) is fixedly connected to the handle (305), and the other end of the return spring (307) is fixedly connected to the mounting block (302).

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