Energy-saving and environment-friendly tunnel kiln

Abstract

An energy-saving and environment-friendly tunnel kiln comprises a kiln body and a shell, the shell is fixedly connected to the surface of the kiln body, the surface of the kiln body is connected with a sliding door through hinges, a locking device is arranged on the surface of the sliding door, a pipeline is arranged on the surface of the sliding door, and a circulating pipe is fixedly connected to the inner surface of the shell. According to the energy-saving and environment-friendly tunnel kiln, through cooperation of the locking device and the circulating pipe, the air pump can enable high-temperature waste gas to enter the circulating pipe through the bent pipe, so that the circulating pipe can enable the high-temperature waste gas to circulate on the surface of the kiln body, and the energy-saving and environment-friendly effects are achieved. The heat of the waste gas can be transferred to the surface of the kiln body to be heated, the heat can be recycled, the heat in the waste gas can be recycled, energy can be recycled, the device is more environmentally friendly, the temperature in the tunnel kiln can be rapidly increased, and the working efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kilns, and in particular to an energy-saving and environment-friendly tunnel kiln. Background Art

[0002] A tunnel kiln is generally a long straight tunnel with fixed walls and arches on both sides and the top. A kiln car runs on tracks laid at the bottom. Combustion equipment is located on both sides of the middle of the tunnel kiln, forming a fixed high-temperature zone. The high-temperature flue gas generated by the combustion flows along the tunnel toward the kiln head under the action of the chimney or induced draft fan at the front end of the tunnel kiln, and gradually preheats the products entering the kiln. This section constitutes the preheating zone of the tunnel kiln.

[0003] For example, an energy-saving and environmentally friendly tunnel kiln with the authorization announcement number "CN220230115U" can recycle the waste gas in the kiln body after being treated by a spray device and a waste gas purification device and then passing through an oxygen supplementer to reduce waste gas emissions. When the kiln is firing, the device needs to extract and recycle the waste gas generated during firing. However, when the waste gas is recycled, the waste gas will have a certain temperature. The device does not have the function of recycling and reusing the heat of the waste gas, which causes the device to waste more energy during firing, making the device not environmentally friendly. At the same time, the device is not convenient for sealing the equipment, which makes the device heat up slowly when heating the equipment, affecting the working efficiency of the device. Summary of the invention

[0004] The utility model aims to solve the problems existing in the prior art and provide an energy-saving and environment-friendly tunnel kiln to achieve the purpose of being more environmentally friendly and improving work efficiency.

[0005] The utility model adopts a technical solution to solve its technical problems: this energy-saving and environment-friendly tunnel kiln comprises a kiln body and an outer shell, the surface of the kiln body is fixedly connected to the outer shell, the surface of the kiln body is connected to a sliding door through a hinge, the surface of the sliding door is provided with a locking device, the surface of the sliding door is provided with a pipeline, the inner surface of the outer shell is fixedly connected to a circulation pipe, one end of the circulation pipe passes through the surface of the outer shell, one end of the circulation pipe is fixedly connected to a treatment box, the surface of the treatment box is fixedly connected to an exhaust pipe and a drain pipe, valves are installed on the surfaces of the exhaust pipe and the drain pipe, the surface of the treatment box is provided with an auxiliary treatment device, the surface of the kiln body is fixedly connected to multiple groups of supporting legs, and the inner surface of the kiln body is fixedly connected to multiple groups of heating plates.

[0006] For further improvement, the locking device includes a fixed box and a slide plate, the fixed box is fixedly connected to the sliding door surface, the fixed box is slidably engaged with the slide plate surface through a slideway opened on the inner surface, the slide plate surface is fixedly connected with a push rod, one end of the push rod passes through the fixed box surface through a slideway opened on the fixed box surface, the slide plate surface is symmetrically fixedly connected with a clamping rod, one end of the clamping rod on both sides passes through the fixed box surface and is clamped with an opening opened on the through-hole plate surface, the slide plate surface is fixedly connected with a straight rod, the straight rod is slidably engaged with the block surface through a slideway opened on the surface, the block surface and the inner surface of the straight rod are respectively fixedly connected to the two ends of the first spring, the slide plate surface and the inner surface of the fixed box are respectively connected to the two ends of the second spring, and a through hole is opened on the fixed box surface.

[0007] Further improvement, the kiln body is slidably connected with the surfaces of two sets of feeding blocks through a slideway opened on the inner surface, and the feeding blocks on both sides are connected with two lead screw threads through threaded holes opened on the surface

[0008] Further improvement, both ends of the lead screws on both sides are rotatably connected to the surface of the kiln body through sealed bearings, one end of the lead screws on both sides penetrates the surface of the kiln body and is rotatably connected to the output shaft of the first motor through a reducer, the reducer is fixedly connected to the surface of the kiln body, and the first motor is fixedly connected to the surface of the reducer through a bracket

[0009] Further improvement, the outer shell surface is fixedly connected with an air pump, the air inlet pipe of the air pump passes through the outer shell and the surface of the kiln body and is fixedly connected with the suction cup, the air outlet pipe of the air pump is fixedly connected with one end of the elbow, and one end of the elbow passes through the outer shell surface and is fixedly connected with one end of the circulation pipe

[0010] To be further improved, the auxiliary processing device includes a support box and a second motor, the support box is fixedly connected to the surface of the processing box, the inner surface of the support box is fixedly connected to the second motor through a bracket, the output shaft of the second motor is fixedly connected to a rotating rod, the protruding part of the rotating rod surface is slidably engaged with the inner surface of the frame, the surface of the frame is slidably engaged with a slideway opened on the inner surface of the support box, the frame is slidably connected to the surface of the sliding rod through an opening opened on the surface, both ends of the sliding rod are fixedly connected to the inner surface of the support box, the surface of the sliding rod is sleeved with a third spring, the surface of the frame is fixedly connected to a stirring rod, one end of the stirring rod passes through the surface of the processing box and is fixedly connected to the stirring plate.

[0011] The beneficial effects of the utility model are as follows: according to the utility model, through the cooperation of the locking device and the circulation pipe, the operator places the raw materials to be fired on the surfaces of the feeding blocks on both sides respectively, closes the sliding door, and the operator pushes the clamping block to compress the first spring so that the clamping block is no longer clamped with the surface of the fixed box, and the slide plate can be pulled under the pulling of the second spring to quickly drive the clamping rods on both sides to move, so that the clamping rods on both sides can quickly clamp with the through holes on the surface of the through-hole plate, so that the position of the sliding door is fixed, and the kiln body can be in a relatively sealed state, the air pump extracts the exhaust gas inside the kiln body through the suction cup, so that the air pump can pass the high-temperature exhaust gas into the circulation pipe through the curved pipe, so that the circulation pipe can circulate the high-temperature exhaust gas on the surface of the kiln body, so that the heat of the exhaust gas can be transferred to the surface of the kiln body for heating, so that the heat can be recovered, and by recovering the heat in the exhaust gas, the energy can be recycled and reused, making the device more environmentally friendly, and the temperature inside the tunnel kiln can be quickly increased, thereby improving the working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 A side cross-sectional view of

[0014] Figure 3 for Figure 1 A front cross-sectional view of

[0015] Figure 4 for Figure 1 A front view of

[0016] Figure 5 for Figure 1 A partial side sectional view of

[0017] Figure 6 is a partial front cross-sectional view of the locking device;

[0018] Figure 7 for Figure 2 Schematic diagram of part A.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. kiln body, 2. circulation pipe, 3. screw, 4. feeding block, 5. casing, 6. suction cup, 7. air pump, 8. auxiliary processing device, 801. support box, 802. second motor, 803. stirring plate, 804. stirring rod, 805. third spring, 806. sliding rod, 807. rotating rod, 808. frame, 9. locking device, 901. through-hole plate, 902. connecting rod, 903. fixing box, 904. second spring, 905. sliding plate, 906. straight rod, 907. pushing rod, 908. clamping block, 909. first spring, 10. bent pipe, 11. heating plate, 12. supporting leg, 13. exhaust pipe, 14. drain pipe, 15. processing box, 16. sliding door, 17. first motor. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Refer to the attached Figure 1-7 In the present embodiment, an energy-saving and environment-friendly tunnel kiln comprises a kiln body 1 and an outer shell 5, the outer shell 5 is fixedly connected to the surface of the kiln body 1, the surface of the kiln body 1 is connected to a sliding door 16 through a hinge, a locking device 9 is provided on the surface of the sliding door 16, a pipeline is provided on the surface of the sliding door 16, the sliding door 16 can allow oxygen to enter and exit the interior through the pipeline on the surface, and a check valve is installed on the surface of the pipeline to prevent the exhaust gas from flowing out of the interior, a circulation pipe 2 is fixedly connected to the inner surface of the outer shell 5, the circulation pipe 2 can circulate the high-temperature flue gas, so that the heat can heat the surface of the kiln body 1, play the role of external heat preservation, and make the temperature inside the kiln body 1 The temperature can be increased rapidly. One end of the circulation pipe 2 passes through the surface of the outer shell 5. One end of the circulation pipe 2 is fixedly connected to the treatment box 15. The surface of the treatment box 15 is fixedly connected with an exhaust pipe 13 and a drain pipe 14. The exhaust pipe 13 and the drain pipe 14 can discharge the treated waste gas inside the treatment box 15 and replace the treatment agent. Valves are installed on the surfaces of the exhaust pipe 13 and the drain pipe 14. The surface of the treatment box 15 is provided with an auxiliary treatment device 8. The surface of the kiln body 1 is fixedly connected with multiple groups of supporting legs 12. The inner surface of the kiln body 1 is fixedly connected with multiple groups of heating plates 11. The multiple groups of heating plates 11 can heat the inside of the kiln body 1.

[0022] The kiln body 1 is slidably connected with the surfaces of the two groups of feed blocks 4 through a slideway opened on the inner surface. The feed blocks 4 on both sides are threadedly connected with the two lead screws 3 through threaded holes opened on the surface to fix the rotation centers of the two lead screws 3. Both ends of the lead screws 3 on both sides are rotationally connected with the surface of the kiln body 1 through sealed bearings. One end of the lead screws 3 on both sides penetrates the surface of the kiln body 1 and is rotationally connected with the output shaft of the first motor 17 through a reducer. The first motor 17 can meet the working needs according to actual needs. The first motor 17 can drive the lead screws 3 on both sides to rotate synchronously through the reducer, so that the feed blocks 4 on both sides can be moved forward. The kiln body 1 and the kiln body 1 move synchronously and in the same direction. The reducer is fixedly connected to the surface of the kiln body 1. The first motor 17 is fixedly connected to the surface of the reducer through a bracket. The surface of the outer shell 5 is fixedly connected to an air pump 7. The air pump 7 can meet the working needs according to actual needs. The air pump 7 can extract the exhaust gas from the kiln body 1. The air inlet pipe of the air pump 7 passes through the outer shell 5 and the surface of the kiln body 1 and is fixedly connected to the suction cup 6. The air outlet pipe of the air pump 7 is fixedly connected to one end of the elbow 10. One end of the elbow 10 passes through the surface of the outer shell 5 and is fixedly connected to one end of the circulation pipe 2. The elbow 10 can transport the exhaust gas extracted by the air pump 7 to the inside of the circulation pipe 2.

[0023] The locking device 9 includes a fixed box 903 and a slide plate 905. The fixed box 903 is fixedly connected to the surface of the sliding door 16. The fixed box 903 is slidably connected to the surface of the slide plate 905 through a slideway opened on the inner surface. The moving track of the fixed slide plate 905 is fixed. A push rod 907 is fixedly connected to the surface of the slide plate 905. The operator can drive the slide plate 905 to move by pushing the push rod 907. One end of the push rod 907 passes through the surface of the fixed box 903 through the slideway opened on the surface of the fixed box 903. The surface of the slide plate 905 is symmetrically fixedly connected with a clamping rod 902. The slide plate 905 can drive the clamping rods 902 on both sides to move synchronously. One end of the clamping rods 902 on both sides passes through the surface of the fixed box 903 and the surface of the through-hole plate 901. The openings are connected with each other, and the connecting rods 902 on both sides can be connected with the through holes on the surface of the through-hole plate 901, so that the position of the sliding door 16 can be fixed. The surface of the slide plate 905 is fixedly connected with a straight rod 906, and the straight rod 906 is slidably connected with the surface of the block 908 through the slideway opened on the surface. The surface of the block 908 and the inner surface of the straight rod 906 are respectively fixedly connected with the two ends of the first spring 909. The elastic coefficient of the first spring 909 can meet the work needs according to actual needs. The first spring 909 can allow the block 908 to have movement space, the surface of the slide plate 905 and the inner surface of the fixed box 903 are respectively connected with the two ends of the second spring 904, and the elastic coefficient of the second spring 904 can meet the work needs according to actual needs. The second spring 904 can pull the slide plate 905 back to its original position quickly, and the surface of the fixed box 903 is provided with a through hole, and the fixed box 903 can move the straight rod 906 out of the fixed box 903 through the opening opened on the surface.

[0024] The auxiliary processing device 8 includes a support box 801 and a second motor 802. The support box 801 is fixedly connected to the surface of the processing box 15. The inner surface of the support box 801 is fixedly connected to the second motor 802 through a bracket. The second motor 802 can meet the working needs according to actual needs. The second motor 802 can drive the rotating rod 807 to rotate. The output shaft of the second motor 802 is fixedly connected with the rotating rod 807. The protruding part of the surface of the rotating rod 807 is slidably engaged with the inner surface of the frame 808. The rotating rod 807 can slide on the inner surface of the frame 808 through the protruding part of the surface, so that the rotating rod 807 can push the frame 808 to move. The surface of the frame 808 slides with the slideway provided on the inner surface of the support box 801. Dynamically clamped, the moving track of the fixed frame 808 is connected by sliding with the surface of the slide bar 806 through an opening opened on the surface of the frame 808. Both ends of the slide bar 806 are fixedly connected to the inner surface of the support box 801. The surface of the slide bar 806 is sleeved with a third spring 805. The elastic coefficient of the third spring 805 can be determined according to actual needs to meet the working needs. The third spring 805 can assist in pushing the frame 808 to reset. The surface of the frame 808 is fixedly connected with a stirring rod 804. One end of the stirring rod 804 penetrates the surface of the treatment box 15 and is fixedly connected to the stirring plate 803. The frame 808 can drive the stirring plate 803 to move through the stirring rod 804, so that the treatment agent inside the treatment box 15 is in contact with the exhaust gas for a longer time.

[0025] Working principle:

[0026] When the raw materials are fired in a tunnel kiln:

[0027] Sealing process:

[0028] The operator places the raw materials to be fired on the surfaces of the feed blocks 4 on both sides, closes the sliding door 16, and pushes the clamping block 908 to compress the first spring 909, so that the clamping block 908 is no longer clamped with the surface of the fixed box 903. Under the pull of the second spring 904, the slide plate 905 can be pulled to quickly drive the clamping rods 902 on both sides to move, so that the clamping rods 902 on both sides can quickly clamp with the through holes on the surface of the through-hole plate 901, so that the sliding door 16 The position of the kiln body 1 can be fixed so that the kiln body 1 can be in a relatively sealed state. When the sliding door 16 needs to be opened, the operator pushes the push rod 907, so that the push rod 907 drives the slide plate 905 to move synchronously, and the slide plate 905 can drive the block 908 to move synchronously through the straight rod 906, so that the straight rod 906 can move out of the fixed box 903 again, so that the block 908 can be pressed against the outer surface of the fixed box 903 again, and the clamping rods 902 on both sides can be retracted into the fixed box 903.

[0029] Firing process:

[0030] Connect the external power supply of the first motor 17, start the output shaft of the first motor 17 to rotate, and drive the lead screws 3 on both sides to rotate through the reducer, so that the lead screws 3 on both sides can drive the two feeding blocks 4 to move synchronously, connect the external power supply of multiple groups of heating plates 11, energize the heating wires inside the multiple groups of heating plates 11, so that the heating plates 11 heat the air inside the kiln body 1 so that the raw materials can be fired. After the firing is completed, start the output shaft of the first motor 17 to rotate in the opposite direction, so that the feeding block 4 can transport the material out of the kiln body 1.

[0031] Gas flow process:

[0032] During firing, waste gas will be generated inside the kiln body 1. The external power supply of the air pump 7 is connected, and the air pump 7 is started to extract the waste gas inside the kiln body 1 through the suction cup 6, so that the air pump 7 can let the high-temperature waste gas enter the circulation pipe 2 through the curved pipe 10, so that the circulation pipe 2 can circulate the high-temperature waste gas on the surface of the kiln body 1, so that the heat of the waste gas can be transferred to the surface of the kiln body 1 for heating, so that the heat can be recovered. When the waste gas is discharged, the inside of the kiln body 1 can be supplemented with gas through the pipeline on the surface of the sliding door 16, and the waste gas will enter the treatment box 15, so that the waste gas can be mixed with the treatment agent inside the treatment box 15, so that the harmful substances in the waste gas can be settled and reacted, and the treated waste gas can be discharged through the exhaust pipe 13, and the waste gas can be subsequently treated or directly discharged.

[0033] Waste gas treatment process:

[0034] Connect the external power supply of the second motor 802, start the output shaft of the second motor 802 to rotate, and drive the rotating rod 807 to rotate, so that the rotating rod 807 can slide on the inner surface of the frame 808 through the protruding part of the surface, and the frame 808 can reciprocate under the push of the protruding part of the surface of the rotating rod 807, so that the frame 808 can drive the stirring rod 804 to move synchronously, and the stirring rod 804 can drive the stirring plate 803 to move synchronously, so that the stirring plate 803 can stir the treatment agent, and the stirring plate 803 can make the treatment agent contact with the exhaust gas for a longer time, thereby ensuring the treatment effect of the exhaust gas.

[0035] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An energy-saving and environment-friendly tunnel kiln, comprising a kiln body (1) and a shell (5), wherein the shell (5) is fixedly connected to the surface of the kiln body (1), and wherein: The surface of the kiln body (1) is connected to a sliding door (16) via a hinge, the surface of the sliding door (16) is provided with a locking device (9), the surface of the sliding door (16) is provided with a pipeline, the inner surface of the outer shell (5) is fixedly connected with a circulation pipe (2), one end of the circulation pipe (2) passes through the surface of the outer shell (5), one end of the circulation pipe (2) is fixedly connected with a processing box (15), the surface of the processing box (15) is fixedly connected with an exhaust pipe (13) and a drain pipe (14), the surfaces of the exhaust pipe (13) and the drain pipe (14) are both installed with valves, the surface of the processing box (15) is provided with an auxiliary processing device (8), the surface of the kiln body (1) is fixedly connected with multiple groups of supporting legs (12), and the inner surface of the kiln body (1) is fixedly connected with multiple groups of heating plates (11).

2. The energy-saving and environment-friendly tunnel kiln according to claim 1 is characterized in that: The locking device (9) comprises a fixed box (903) and a slide plate (905); the fixed box (903) is fixedly connected to the surface of the sliding door (16); the fixed box (903) is slidably engaged with the surface of the slide plate (905) via a slideway provided on the inner surface; a push rod (907) is fixedly connected to the surface of the slide plate (905); one end of the push rod (907) passes through the surface of the fixed box (903) via a slideway provided on the surface of the fixed box (903); the surface of the slide plate (905) is symmetrically fixedly connected to engaging rods (902); the engaging rods (902) on both sides are One end of each of the slide plates (905) penetrates the surface of the fixed box (903) and is clamped with an opening provided on the surface of the through-hole plate (901); a straight rod (906) is fixedly connected to the surface of the slide plate (905); the straight rod (906) is slidably clamped with the surface of the clamping block (908) through a slideway provided on the surface; the surface of the clamping block (908) and the inner surface of the straight rod (906) are respectively fixedly connected to the two ends of the first spring (909); the surface of the slide plate (905) and the inner surface of the fixed box (903) are respectively connected to the two ends of the second spring (904); and a through hole is provided on the surface of the fixed box (903).

3. The energy-saving and environment-friendly tunnel kiln according to claim 1 is characterized in that: The kiln body (1) is slidably engaged with the surfaces of two groups of feed blocks (4) via a slideway provided on the inner surface, and the feed blocks (4) on both sides are threadedly connected to two lead screws (3) via threaded holes provided on the surface.

4. The energy-saving and environment-friendly tunnel kiln according to claim 3 is characterized in that: Both ends of the lead screws (3) on both sides are rotationally connected to the surface of the kiln body (1) through sealed bearings, and one end of the lead screws (3) on both sides penetrates the surface of the kiln body (1) and is rotationally connected to the output shaft of the first motor (17) through a reducer, the reducer is fixedly connected to the surface of the kiln body (1), and the first motor (17) is fixedly connected to the surface of the reducer through a bracket.

5. The energy-saving and environment-friendly tunnel kiln according to claim 1 is characterized in that: An air pump (7) is fixedly connected to the surface of the outer shell (5); an air inlet pipe of the air pump (7) passes through the outer shell (5) and the surface of the kiln body (1) and is fixedly connected to the suction cup (6); an air outlet pipe of the air pump (7) is fixedly connected to one end of a curved pipe (10); and one end of the curved pipe (10) passes through the surface of the outer shell (5) and is fixedly connected to one end of the circulation pipe (2).

6. The energy-saving and environment-friendly tunnel kiln according to claim 1 is characterized in that: The auxiliary processing device (8) comprises a support box (801) and a second motor (802); the support box (801) is fixedly connected to the surface of the processing box (15); the inner surface of the support box (801) is fixedly connected to the second motor (802) via a bracket; the output shaft of the second motor (802) is fixedly connected to a rotating rod (807); a protruding portion on the surface of the rotating rod (807) is slidably engaged with the inner surface of a frame (808); the surface of the frame (808) is connected to the support box (8 01) is slidably connected with a slideway opened on the inner surface, the frame (808) is slidably connected to the surface of the slide rod (806) through an opening opened on the surface, both ends of the slide rod (806) are fixedly connected to the inner surface of the support box (801), a third spring (805) is sleeved on the surface of the slide rod (806), and a stirring rod (804) is fixedly connected to the surface of the frame (808), and one end of the stirring rod (804) passes through the surface of the processing box (15) and is fixedly connected to the stirring plate (803).

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