An energy-saving and environmentally friendly automated lime furnace

Abstract

The present invention discloses an energy-saving and environmentally friendly automated lime dense furnace, specifically relating to the technical field of lime dense furnaces, comprising a base, a heating and decomposition component disposed on the base, the heating and decomposition component comprising a perlite insulation disk disposed at the top of the inner cavity of the base, a turntable disposed on the top of the perlite insulation disk, and a furnace body mounted on the top of the turntable via bolts. The present invention generates high temperatures by heating a combustion tube and a heat-conducting cylinder, thereby causing the limestone in the furnace body to be heated and decomposed into quicklime and carbon dioxide. When the heat-conducting rod rotates, it crushes and stirs larger limestone, facilitating the effective transfer of heat to the interior of the limestone, thereby shortening the calcination time and accelerating heat penetration, reducing fuel consumption, and enabling the combustion tube and the heat-conducting cylinder to swing up and down within the furnace body due to the friction of the turntable and the limestone, thereby improving the limestone heating and decomposition effect.

Description

Technical Field

[0001] The present invention relates to the technical field of lime dense furnaces, and more particularly to an energy-saving and environment-friendly automatic lime dense furnace. Background Art

[0002] A lime kiln is a specialized piece of industrial equipment used for high-temperature calcination of limestone, producing quicklime and carbon dioxide through a decomposition reaction. It is a core piece of equipment in the lime industry and is widely used in building materials, metallurgy, and chemical industries. Limestone decomposes at high temperatures, a process that requires continuous heating from an external fuel (such as coal or natural gas). This process does not burn the lime itself, but rather decomposes the limestone at high temperatures.

[0003] Among them, patent publication number CN212269892U discloses a new environmentally friendly lime kiln, including an enclosed board room, a fuel supply system, a kiln body, a loading bin, a chain plate discharger, a finished product elevator, a finished product bin, an induced draft fan, a desulfurization tower, and an electric precipitator. The fuel supply system, kiln body, loading bin, chain plate discharger, and the lower half of the finished product elevator are all arranged in the enclosed board room, the loading bin is located above the kiln body, the chain plate discharger is located below the kiln body, and the kiln body is provided with several combustion chambers.

[0004] When this structure is in use, the high temperature generated by the fuel is transferred to the limestone through the silicon carbide heat conducting plate. When the temperature reaches the high temperature for limestone decomposition, the limestone decomposes. However, the limestone accumulates together during combustion and decomposition, so the high temperature heat cannot penetrate into the limestone. Only the surface of the limestone is heated. The internal temperature is not high, and the reaction cannot be completed, resulting in incomplete calcination and poor product quality. At the same time, the calcination time needs to be extended or the temperature needs to be increased, which increases fuel consumption. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an energy-saving and environmentally friendly automated lime dense furnace, which aims to solve the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: an energy-saving and environmentally friendly automatic lime dense furnace, comprising a base, on which a heating and decomposition component is provided;

[0007] The heating and decomposition assembly includes a perlite insulation plate arranged on the top of the inner cavity of the base, a turntable is arranged on the top of the perlite insulation plate, a furnace body is mounted on the top of the turntable by bolts, and a plurality of interconnected through holes are formed on the perlite insulation plate and the turntable;

[0008] A limited position cavity is formed between the perlite insulation disk and the turntable, and two baffles are provided in the limited position cavity. A combustion tube is provided on the top of the turntable, and two connecting disks are rotatably connected to the combustion tube, and a heat conducting tube is fixedly provided on one side of each connecting disk, and a plurality of heat conducting rods are fixedly provided on the outer sides of the two heat conducting tubes. Both ends of the combustion tube pass through the furnace body and extend to the outside of the furnace body, and the end of the combustion tube is slidably connected to a protective frame, which is mounted on the outside of the furnace body by bolts, and a flamethrower is provided on the protective frame. The bottom end of the flamethrower is mounted on the combustion tube by a flange, and the combustion tube is slidably connected to the furnace body, and a plurality of ventilation filter cartridges for diversion are embedded in the connecting disk, and the connecting disk, the combustion tube and the heat conducting tube are connected;

[0009] It can be seen that in the above technical solution, the limestone is gathered in the furnace body and can cover the combustion tube and the heat-conducting tube. The flame is transported into the combustion tube through the flange and the end of the combustion tube by the flamethrower, so that the combustion tube and the heat-conducting tube can be heated to generate high temperature, and the limestone in the furnace body is heated and decomposed into quicklime and carbon dioxide. The heat-conducting tube and the heat-conducting rod can rotate along the axial direction of the combustion tube in the furnace body due to the traction and friction generated by the rotation of the turntable. When the heat-conducting rod rotates, the larger limestone is crushed and stirred, which makes it easy for the heat generated by the heating of the heat-conducting tube to be distributed on the limestone, and the heat is easy to be effectively transferred to the interior of the limestone, which not only shortens the calcination time but also accelerates heat penetration and reduces fuel consumption. At the same time, it can also effectively avoid the overburning of the limestone surface causing the external temperature to be too high, resulting in coarse crystals and even melt agglomeration.

[0010] An extension plate is fixedly provided on the outer side of each of the two baffles, an upper edge ring is fixedly provided on the outer side of the top of the base, the extension plate extends to the top surface of the upper edge ring and is rotatably connected to the upper edge ring, a gear is fixedly provided on each of the two extension plates, a gear rod is provided between the two gears, the gear rod is meshed with the gear, and the gear rod extends between the two baffles, and an electric push rod for driving the gear rod to move is installed on the bottom of the upper edge ring through bolts;

[0011] It can be seen that in the above technical solution, the output end of the electric push rod extends to drive the gear rod to displace between the two baffles. Since the gear rod is engaged with the gear, and the baffle is rotatably connected to the upper ring through the extension plate, the gear rotates to drive the extension plate and the baffle to deflect along the axial point of the connection between the extension plate and the upper ring, thereby unblocking the through hole on the turntable, so that the decomposed limestone can be discharged through the perlite insulation plate and the through hole on the turntable and transported to the base.

[0012] The top of the furnace body is provided with a feeding cover for feeding, and the bottom of the feeding cover is fixedly provided with an extension sleeve, and the extension sleeve is located on the outside of the furnace body and is detachably connected to the furnace body by bolts, and a sealing cover is provided on the top of the feeding cover, and a feeding frame opening is opened through the surface of the base, and a feeding hopper is provided on the outside of the feeding frame opening, and the feeding hopper is mounted on the base by bolts, and a limiting seat is installed inside the base by bolts, and the top of the limiting seat is rotatably connected to the feeding tray, and the feeding tray is located at the bottom of the perlite insulation tray, and the shape of the feeding tray is set to be frustum-shaped, and a motor for driving the feeding tray, the perlite insulation tray and the turntable to rotate is installed at the bottom of the base by bolts;

[0013] It can be seen that in the above technical solution, the limestone decomposed in the base is diverted through the discharge tray and transported to the discharge hopper through the discharge frame port for discharge. The perlite insulation tray at the bottom of the turntable can effectively reduce the heat loss rate in the furnace body, and the ventilation filter cartridge on the connecting plate allows the air flow to enter the combustion tube when the flame burns in the combustion tube, thereby avoiding the phenomenon of oxygen deficiency causing insufficient combustion temperature. At the same time, the combustion tube is slidably connected to the furnace body and the protective frame, so that when limestone accumulates in the furnace body, the heat-conducting tube and the combustion tube can be displaced on the furnace body along the guide of the protective frame, making it easy for the combustion tube and the heat-conducting tube to swing up and down in the furnace body due to the friction of the turntable and the limestone, thereby improving the heating and decomposition effect of the limestone.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention gathers limestone in the furnace body and covers the combustion tube and the heat-conducting tube. The flame is transported into the combustion tube through the flange and the end of the combustion tube by the flamethrower, thereby heating the combustion tube and the heat-conducting tube to generate high temperature, and then the limestone in the furnace body is heated and decomposed into quicklime and carbon dioxide.

[0016] 2. The present invention enables the heat-conducting tube and the heat-conducting rod to rotate along the axial direction of the combustion tube in the furnace body due to the traction and friction generated by the rotation of the turntable. When the heat-conducting rod rotates, the larger limestone is crushed and stirred, which facilitates the heat generated by the heated heat-conducting tube to be distributed on the limestone and effectively transfer the heat to the interior of the limestone, thereby shortening the calcination time and accelerating heat penetration, reducing fuel consumption, and effectively preventing the limestone surface from being overburned and causing the external temperature to be too high, resulting in coarse crystals and even melting and agglomeration.

[0017] 3. The present invention extends the output end of the electric push rod to drive the gear rod to move between the two baffles, and then when the gear rotates, it can drive the extension plate and the baffle to deflect along the axis point where the extension plate and the upper edge ring are connected, thereby unblocking the through-holes on the turntable, so that the decomposed limestone can be discharged through the perlite insulation plate and the through-holes on the turntable and transported to the base, diverted through the discharge plate and transported to the discharge hopper through the discharge frame for discharge;

[0018] 4. The present invention can effectively reduce the heat loss rate in the furnace body through the perlite insulation plate at the bottom of the turntable, and the air flow enters the combustion tube through the ventilation filter cartridge on the connecting plate when the flame burns in the combustion tube, avoiding the phenomenon of oxygen deficiency causing insufficient combustion temperature. In addition, the heat-conducting tube and the combustion tube can be moved along the guide of the protective frame on the furnace body, making it easy for the combustion tube and the heat-conducting tube to swing up and down in the furnace body due to the friction of the turntable and limestone, thereby improving the thermal decomposition effect of the limestone;

[0019] In summary, through the corresponding coordinated use of various structures and the linkage design of the rotating heat-conducting tube and the heat-conducting rod, the limestone is dynamically crushed and stirred under the drive of the turntable, breaking the traditional static accumulation heating mode. The heat generated by the heated heat-conducting tube is easily distributed on the limestone, and the heat is easily transferred to the interior of the limestone, which not only shortens the calcination time but also accelerates heat penetration and reduces fuel consumption. At the same time, it can also effectively avoid overburning of the limestone surface, causing the external temperature to be too high, resulting in coarse crystals, and even melting and agglomeration. The combustion tube and the heat-conducting tube can slide in the furnace body, and combined with the rotation of the turntable and the friction of the limestone, form an up and down swing motion, dynamically adjust the contact area between the heating element and the material, and further strengthen the heat transfer path. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0021] Figure 1 It is the main view of the overall structure of the present invention.

[0022] Figure 2 It is a side view of the overall structure of the present invention.

[0023] Figure 3 It is a cross-sectional view of the overall structure of the present invention.

[0024] Figure 4This is a schematic diagram of the base, turntable, gear rod and gear of the present invention when installed together.

[0025] Figure 5 This is a schematic diagram of the combustion tube, connecting plate, heat-conducting tube and heat-conducting rod located in the furnace body of the present invention.

[0026] Figure 6 It is a schematic diagram of the baffle, turntable, limit seat, gear rod, electric push rod and gear of the present invention.

[0027] Figure 7 For the present invention Figure 6 Exploded diagram.

[0028] Figure 8 For the present invention Figure 5 Exploded diagram.

[0029] The accompanying drawings are marked as follows: 1. base; 2. furnace body; 3. perlite insulation plate; 4. turntable; 5. through hole; 6. limit cavity; 7. baffle; 8. combustion tube; 9. connecting plate; 10. heat-conducting tube; 11. heat-conducting rod; 12. protective frame; 13. flamethrower; 14. gear rod; 15. electric push rod; 16. gear; 17. feed cover; 18. discharge hopper; 19. limit seat; 20. discharge plate; 21. motor; 22. ventilation filter cartridge; 23. discharge frame opening. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] As attached Figures 1-8 The energy-saving and environmentally friendly automated lime dense furnace shown in the figure has a heating and decomposition component provided on the base 1. When the heat-conducting rod 11 rotates, it crushes and stirs larger limestones, making it easier for the heat generated by the heating of the heat-conducting tube 10 to be distributed on the limestone, and easier for the heat to be effectively transferred to the interior of the limestone. This not only shortens the calcination time but also accelerates heat penetration, reducing fuel consumption. At the same time, it can also effectively prevent the limestone surface from being overburned, causing the external temperature to be too high, resulting in coarse crystals, and even melting and agglomeration. The combustion tube 8 and the heat-conducting tube 10 can swing up and down in the furnace body 2 due to the turntable 4 and the friction of the limestone, thereby improving the limestone heating and decomposition effect. The specific structural arrangement of the component is as follows;

[0032] The heating and decomposition assembly includes a perlite insulation plate 3 arranged on the top of the inner cavity of the base 1, a turntable 4 is arranged on the top of the perlite insulation plate 3, and the top of the turntable 4 is fixed with the furnace body 2 by bolts. A plurality of interconnected through holes 5 are formed on the perlite insulation plate 3 and the turntable 4;

[0033] A limiting cavity 6 is formed between the perlite insulation disk 3 and the turntable 4. Two baffles 7 are provided in the limiting cavity 6. A combustion tube 8 is provided on the top of the turntable 4. Two connecting disks 9 are rotatably connected to the combustion tube 8, and a heat-conducting tube 10 is fixedly provided on one side of each connecting disk 9. A plurality of heat-conducting rods 11 are fixedly provided on the outer sides of the two heat-conducting tubes 10. Both ends of the combustion tube 8 pass through the furnace body 2 and extend to the outside of the furnace body 2, and the end of the combustion tube 8 is slidably connected to a protective frame 12, which is mounted on the outside of the furnace body 2 by bolts. A flamethrower 13 is provided on the protective frame 12, and the bottom end of the flamethrower 13 is mounted on the combustion tube 8 by a flange, and the combustion tube 8 is slidably connected to the furnace body 2. A plurality of ventilation filter cartridges 22 for diversion are embedded in the connecting disk 9, and the connecting disk 9, the combustion tube 8 and the heat-conducting tube 10 are connected;

[0034] An extension plate is fixedly provided on the outside of the two baffles 7, and an upper edge ring is fixedly provided on the outside of the top of the base 1. The extension plate extends to the top surface of the upper edge ring and is rotatably connected to the upper edge ring. A gear 16 is fixedly provided on the two extension plates, and a gear rod 14 is provided between the two gears 16. The gear rod 14 meshes with the gear 16 and extends between the two baffles 7. An electric push rod 15 for driving the displacement of the gear rod 14 is installed at the bottom of the upper edge ring by bolts;

[0035] A feeding cover 17 for feeding is provided on the top of the furnace body 2, and an extension sleeve is fixedly provided on the bottom of the feeding cover 17, and the extension sleeve is located on the outside of the furnace body 2 and is detachably connected to the furnace body 2 by bolts, and a sealing cover is provided on the top of the feeding cover 17, and a feeding frame opening 23 is provided on the surface of the base 1, and a feeding hopper 18 is provided on the outside of the feeding frame opening 23, and the feeding hopper 18 is mounted on the base 1 by bolts, and a limit seat 19 is mounted on the inside of the base 1 by bolts, and a feeding tray 20 is rotatably connected to the top of the limit seat 19, and the feeding tray 20 is located at the bottom of the perlite insulation tray 3, and the shape of the feeding tray 20 is set to be truncated cone-shaped, and a motor 21 for driving the feeding tray 20, the perlite insulation tray 3 and the turntable 4 to rotate is installed on the bottom of the base 1 by bolts;

[0036] The specific working principle is as follows: when the limestone is heated and decomposed, the crushed limestone is introduced into the furnace body 2 through the feed cover 17. The limestone gathers in the furnace body 2 and can cover the combustion tube 8 and the heat-conducting cylinder 10. The flame is then transported into the combustion tube 8 through the flange and the end of the combustion tube 8 by the flamethrower 13. The combustion tube 8 and the heat-conducting cylinder 10 are then heated to generate high temperatures, and the limestone in the furnace body 2 is then heated and decomposed into quicklime and carbon dioxide.

[0037] At the same time, in order to further improve the limestone decomposition effect, the starting motor 21 drives the unloading tray 20, the perlite insulation tray 3 and the turntable 4 to rotate. The unloading tray 20, the perlite insulation tray 3 and the turntable 4 are installed at the output end of the motor 21 through a flange to facilitate the motor 21 to drive the unloading tray 20, the perlite insulation tray 3 and the turntable 4 to rotate. When the turntable 4 rotates, it can contact the heat-conducting rod 11, and then the heat-conducting tube 10 and the heat-conducting rod 11 can rotate along the axis of the combustion tube 8 in the furnace body 2 due to the traction and friction generated when the turntable 4 rotates. When the heat-conducting rod 11 rotates, the larger limestone is crushed and stirred, and the heat generated by the heating of the heat-conducting tube 10 is easily distributed on the limestone, and the heat is easily transferred to the inside of the limestone effectively, which not only shortens the calcination time but also accelerates heat penetration and reduces fuel consumption. At the same time, it can also effectively avoid overburning of the limestone surface, causing the external temperature to be too high, resulting in coarse crystals, and even melting and agglomeration.

[0038] After the limestone is heated in the furnace body 2, the electric push rod 15 is started, and the output end of the electric push rod 15 extends to drive the gear rod 14 to move between the two baffles 7. Since the gear rod 14 is engaged with the gear 16, and the baffle 7 is connected to the upper ring through the extension plate, the gear 16 can drive the extension plate and the baffle 7 to deflect along the axis point of the connection between the extension plate and the upper ring when it rotates, so that the through hole 5 on the turntable 4 can be unblocked, so that the decomposed limestone can be discharged through the perlite insulation plate 3 and the through hole 5 on the turntable 4 and transported to the base 1, diverted through the discharge tray 20 and transported to the discharge hopper 18 through the discharge frame opening 23 for discharge.

[0039] In addition, the perlite insulation plate 3 at the bottom of the turntable 4 can effectively reduce the heat loss rate in the furnace body 2, and the air flow enters the combustion tube 8 through the ventilation filter cartridge 22 on the connecting plate 9 when the flame burns in the combustion tube 8, avoiding the phenomenon of oxygen deficiency causing insufficient combustion temperature. At the same time, the combustion tube 8 is slidably connected to the furnace body 2 and the protective frame 12, so that when limestone accumulates in the furnace body 2.

[0040] When the turntable 4 rotates, the limestone comes into contact with the heat-conducting tube 10 and the combustion tube 8. Due to the friction of the limestone, the heat-conducting tube 10 and the combustion tube 8 can swing up and down on the furnace body 2 along the guide displacement of the protective frame 12. The up and down swing of the heat-conducting tube 10 and the combustion tube 8 facilitates rapid dispersion of the limestone, avoids uneven heating of the limestone, and improves the heating and decomposition effect of the limestone.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving and environmentally friendly automated lime furnace, comprising a base (1), characterized in that: A heating and decomposition component is provided on the base (1); The heating and decomposition assembly comprises a perlite insulation plate (3) arranged on the top of the inner cavity of the base (1); a turntable (4) is arranged on the top of the perlite insulation plate (3); a furnace body (2) is mounted on the top of the turntable (4) via bolts; and a plurality of interconnected through holes (5) are provided on both the perlite insulation plate (3) and the turntable (4); A limiting cavity (6) is formed between the perlite insulation disk (3) and the turntable (4), two baffles (7) are provided in the limiting cavity (6), a combustion tube (8) is provided on the top of the turntable (4), two connecting disks (9) are rotatably connected to the combustion tube (8), and a heat-conducting tube (10) is fixedly provided on one side of each of the connecting disks (9), and a plurality of heat-conducting rods (11) are fixedly provided on the outer sides of the two heat-conducting tubes (10); Both ends of the combustion tube (8) pass through the furnace body (2) and extend to the outside of the furnace body (2), and the ends of the combustion tube (8) are slidably connected to a protective frame (12), the protective frame (12) is mounted on the outside of the furnace body (2) by bolts, and a flamethrower (13) is provided on the protective frame (12); An extension plate is fixedly provided on the outer sides of the two baffles (7), an upper edge ring is fixedly provided on the outer side of the top of the base (1), the extension plate extends to the top surface of the upper edge ring and is rotatably connected to the upper edge ring, and a gear (16) is fixedly provided on the two extension plates; A gear rod (14) is provided between the two gears (16), the gear rod (14) is meshed with the gear (16), and the gear rod (14) extends between the two baffles (7), and an electric push rod (15) for driving the gear rod (14) to move is installed at the bottom of the upper ring through bolts; A plurality of ventilation filter cartridges (22) for diverting flow are embedded in the connecting plate (9), and the connecting plate (9), the combustion tube (8) and the heat conducting tube (10) are connected; The bottom end of the flamethrower (13) is mounted on the combustion tube (8) via a flange, and the combustion tube (8) is slidably connected to the furnace body (2).

2. The energy-saving and environmentally friendly automated limestone furnace according to claim 1, characterized in that: A feed cover (17) for feeding is provided on the top of the furnace body (2), an extension sleeve is fixedly provided on the bottom of the feed cover (17), and the extension sleeve is located outside the furnace body (2) and is detachably connected to the furnace body (2) by bolts, and a sealing cover is provided on the top of the feed cover (17).

3. The energy-saving and environmentally friendly automated limestone furnace according to claim 1, characterized in that: A material discharge frame opening (23) is provided through the surface of the base (1), and a material discharge hopper (18) is provided outside the material discharge frame opening (23). The material discharge hopper (18) is mounted on the base (1) by means of bolts.

4. The energy-saving and environmentally friendly automated limestone furnace according to claim 1, characterized in that: A limit seat (19) is installed inside the base (1) by means of bolts, and a feed tray (20) is rotatably connected to the top of the limit seat (19), and the feed tray (20) is located at the bottom of the perlite insulation tray (3).

5. The energy-saving and environmentally friendly automatic lime dense furnace according to claim 4 is characterized in that: The shape of the unloading tray (20) is set to be a truncated cone, and a motor (21) for driving the unloading tray (20), the perlite insulation tray (3) and the turntable (4) to rotate is installed on the bottom of the base (1) through bolts.

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