Novel gas retort thermocouple protection device

Abstract

The utility model discloses a novel thermocouple protection device for a dry distillation furnace, which belongs to the technical field of dry distillation equipment and comprises a furnace body generation section, a furnace body dry distillation section, a water basin and a motor, the furnace body dry distillation section is formed by piling up dry distillation section refractory bricks, and the furnace body generation section is formed by piling up generation section refractory bricks. According to the utility model, the end of the thermocouple at the dry distillation section is positioned in the second hollow-out groove at the side part of the special-shaped refractory brick at the dry distillation section, and the end of the thermocouple at the generation section is positioned in the first hollow-out groove at the side part of the special-shaped refractory brick at the generation section; shale in the dry distillation furnace is separated from the dry distillation section thermocouple and the generation section thermocouple by the dry distillation section special-shaped refractory brick and the generation section special-shaped refractory brick, so that the protective effect is achieved, the damage frequency of the thermocouples is reduced, the service life of the thermocouples is greatly prolonged, the shutdown overhaul frequency of the dry distillation furnace is reduced, the stable operation of the dry distillation furnace is guaranteed, and meanwhile, the material cost is saved; the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of dry distillation equipment, and more specifically to a novel thermocouple protection device for a dry distillation furnace. Background Art

[0002] The retort furnace is an important part of the Fushun retort system. The internal temperature monitoring of the retort furnace is the key to ensure the stable operation of the retort furnace. A thermocouple is set on the east and west sides of the generating section and the retort section to monitor the temperature of the generating section and the retort section. Since the thermocouple needs to enter the furnace, during the operation of the retort furnace, both the temperature accuracy and the service life must be guaranteed. Therefore, steel pipes are used to protect the thermocouples.

[0003] During the operation of the retort furnace, the protective steel pipe is easily bent and deformed by the impact of falling shale in the furnace and the high temperature in the furnace, causing the internal thermocouple to break, resulting in a very low service life of the thermocouple. It needs to be replaced every 3 to 4 months, and the damaged thermocouple is not easy to remove during the replacement process. It is necessary to wait until the furnace is shut down to cut the damaged protective cover and re-embed the steel pipe. The replacement and maintenance cycle is long. At the same time, the missing temperature point has a great impact on the overall adjustment of the retort furnace. The retort furnace with multiple missing temperature points needs to be forced to shut down for processing, which greatly affects the continuous stability and efficient operation of the device. For this reason, we proposed a new retort furnace thermocouple protection device. Utility Model Content

[0004] In view of the problems mentioned in the above background technology, the purpose of the utility model is to provide a novel thermocouple protection device for a retort furnace.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A novel retort furnace thermocouple protection device comprises a furnace body generating section, a furnace body retort section, a water basin and a motor, wherein the furnace body retort section is formed by stacking retort section refractory bricks, the furnace body generating section is formed by stacking retort section refractory bricks, a retort section thermocouple is arranged on the furnace body retort section, a generating section thermocouple is arranged on the furnace body generating section, a retort section special-shaped refractory brick is arranged on the furnace body retort section and above the retort section thermocouple, a second hollow groove is provided on the inner side surface of the retort section special-shaped refractory brick, an end of the retort section thermocouple extends to the inner cavity of the second hollow groove, a generating section special-shaped refractory brick is provided on the furnace body generating section and above the generating section thermocouple, a first hollow groove is provided on the inner side surface of the generating section special-shaped refractory brick, an end of the generating section thermocouple extends to the inner cavity of the first hollow groove, and shielding mechanisms are respectively provided on the inner sides of the generating section special-shaped refractory brick and the retort section special-shaped refractory brick.

[0007] As a preferred solution of the utility model, the shielding mechanism includes a mounting plate installed on the inner side of the special-shaped refractory bricks of the generating section and the special-shaped refractory bricks of the distillation section, the bottom end of the mounting plate is fixedly connected to a support seat, the top surface of the support seat is fixedly connected to a plurality of springs, the top ends of the plurality of springs are fixedly connected to a bending baffle, a plurality of air holes are provided on the outer side of the bending baffle, a filter screen is fixedly sleeved in the inner cavity of the air holes, the end face of the filter screen is flush with the outer side face of the bending baffle, screws are sleeved on the mounting plate, a sliding rod is fixedly connected to the bending baffle, and the bottom end of the sliding rod is movably sleeved to the bottom of the support seat.

[0008] As a preferred solution of the utility model, a tie rod is provided inside the furnace body retort section, an array umbrella is provided at the bottom end of the tie rod, a shale loading port is provided at the top of the furnace body retort section, a horizontal gate is provided on the shale loading port, a retort furnace outlet valve is provided at the top of the furnace body retort section, a collecting pipe is provided at the lower part of the retort furnace outlet valve, the end of the retort furnace outlet valve is connected to the array umbrella, and the end of the retort furnace outlet valve is provided with a furnace outlet thermocouple.

[0009] As a preferred solution of the utility model, a hot gas inlet is arranged on the outer side of the furnace body generating section, a mixing chamber is arranged inside the furnace body generating section, and a cast iron plate is arranged at the bottom end of the furnace body generating section.

[0010] As a preferred solution of the utility model, a tooth bar is provided on the outside of the water basin, a reamer is provided on the side of the tooth bar, a reducer is connected to the motor for transmission, an output shaft of the reducer is connected to the reamer, a furnace bottom ball rack is provided at the bottom of the water basin, a furnace bottom water seal is provided inside the water basin, a wind head is provided above the water basin, and an ash discharger is provided at the bottom of the water basin.

[0011] As a preferred solution of the utility model, a manhole is provided on the side of the dry distillation section of the furnace body.

[0012] The advantages of the utility model are:

[0013] (1) In the utility model, the end of the thermocouple of the retorting section is located in the second hollow groove on the side of the special-shaped refractory brick of the retorting section, and the end of the thermocouple of the generating section is located in the first hollow groove on the side of the special-shaped refractory brick of the generating section. The special-shaped refractory bricks of the retorting section and the special-shaped refractory bricks of the generating section separate the shale in the retorting furnace from the thermocouple of the retorting section and the thermocouple of the generating section, thereby playing a protective role, reducing the frequency of damage to the thermocouple, greatly extending the service life of the thermocouple, reducing the frequency of shutdown and maintenance of the retorting furnace, ensuring the stable operation of the retorting furnace, and saving material costs at the same time.

[0014] (2) In the utility model, the first hollow groove and the second hollow groove are protected by a bending baffle to prevent shale from splashing and causing damage to the thermocouple end. The air vents can ensure heat conduction so that the distillation section thermocouple and the generation section thermocouple can measure the temperature accurately. In addition, when shale hits the bending baffle, the spring is used to reduce the vibration force on the bending baffle, and the filter net is used to filter the shale dust. The dust can fall off by itself in conjunction with the up and down vibration of the bending baffle, thereby realizing double protection of the thermocouple and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the special-shaped refractory bricks in the generating section of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the special-shaped refractory brick of the generating section of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the special-shaped refractory bricks of the dry distillation section of the utility model;

[0019] Figure 5 It is a cross-sectional schematic diagram of the special-shaped refractory bricks of the dry distillation section of the utility model;

[0020] Figure 6 It is a cross-sectional schematic diagram of the shielding mechanism of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Horizontal gate; 2. Shale loading inlet; 3. Tie rod; 4. Array umbrella; 5. Refractory bricks in the distillation section; 6. Manhole; 7. Mixing chamber; 8. Hot gas inlet; 9. Refractory bricks in the generation section; 10. Wind head; 11. Cast iron plate; 12. Ash discharger; 13. Reamer; 14. Speed ​​reducer; 15. Motor; 16. Ball rack at the bottom of the furnace; 17. Water seal at the bottom of the furnace; 18. Tooth rod; 19. Water basin; 20. Shielding mechanism; 21. Thermocouple in the generation section; 22 1. furnace body generating section; 23. distillation section thermocouple; 24. furnace body distillation section; 25. collecting pipe; 26. distillation furnace outlet valve; 27. furnace outlet thermocouple; 28. generating section special-shaped refractory brick; 29. ​​first hollow groove; 30. distillation section special-shaped refractory brick; 31. second hollow groove; 32. mounting plate; 33. support seat; 34. spring; 35. bending baffle; 36. air vent; 37. filter; 38. slide rod; 39. screw. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Example:

[0027] See also Figure 1-6 A novel thermocouple protection device for a retort furnace comprises a furnace body generating section 22, a furnace body retort section 24, a water basin 19 and a motor 15, wherein the furnace body retort section 24 is formed by stacking retort section refractory bricks 5, the furnace body generating section 22 is formed by stacking retort section refractory bricks 9, a retort section thermocouple 23 is arranged on the furnace body retort section 24, a retort section thermocouple 21 is arranged on the furnace body generating section 22, a retort section special-shaped refractory brick 30 is arranged on the furnace body retort section 24 and above the retort section thermocouple 23, and a retort section special-shaped refractory brick 31 is arranged on the furnace body retort section 24. A second hollow groove 31 is provided on the inner side surface of the fire brick 30, and the end of the distillation section thermocouple 23 extends to the inner cavity of the second hollow groove 31. A generating section special-shaped refractory brick 28 is arranged on the generating section 22 of the furnace body and above the generating section thermocouple 21. A first hollow groove 29 is provided on the inner side surface of the generating section special-shaped refractory brick 28, and the end of the generating section thermocouple 21 extends to the inner cavity of the first hollow groove 29. Shielding mechanisms 20 are respectively provided on the inner sides of the generating section special-shaped refractory brick 28 and the distillation section special-shaped refractory brick 30.

[0028] In this embodiment, the mixing chamber 7 is a device for mixing the gas generated at the lower part with the external heat cycle gas. The mixed gas enters the upper furnace body retorting section 24 of the retorting furnace through the gas channel to provide heat for the shale retorting; the retorting furnace is located below the mixing chamber 7. The fixed carbon in the shale after retorting reacts with the oxygen in the main wind to produce carbon monoxide and release a large amount of heat. A part of the heat enters the upper furnace body retorting section 24 through the gap between the arches to provide heat for the shale, and the other part enters the mixing chamber 7 through the gas channel at the lower part of the mixing chamber 7 and mixes with the external heat cycle gas heated by the heating furnace. The generator section thermocouple 21 and the retorting section thermocouple 23 are respectively arranged on the east and west sides of the furnace body generator section 22 and the furnace body retorting section 24 to monitor the temperature of the furnace body generator section 22 and the furnace body retorting section 24.

[0029] For details, please refer to Figure 1 and Figure 6 The shielding mechanism 20 includes a mounting plate 32 mounted on the inner side of the special-shaped refractory bricks 28 of the generating section and the special-shaped refractory bricks 30 of the distillation section, the bottom end of the mounting plate 32 is fixedly connected to a support seat 33, the top surface of the support seat 33 is fixedly connected to a plurality of springs 34, the top ends of the plurality of springs 34 are fixedly connected to a bending baffle 35, the outer side of the bending baffle 35 is provided with a plurality of air holes 36, the inner cavity of the air holes 36 is fixedly sleeved with a filter screen 37, the end surface of the filter screen 37 is flush with the outer side surface of the bending baffle 35, a screw 39 is sleeved on the mounting plate 32, the bending baffle 35 is fixedly connected to a slide rod 38, and the bottom end of the slide rod 38 is movably sleeved to the bottom of the support seat 33.

[0030] In this embodiment, the movable sleeve between the slide bar 38 and the support seat 33 is used to limit the upward and downward movement of the bending baffle 35, and the mounting plate 32 is installed by screws 39.

[0031] For details, please refer to Figure 1 A tie rod 3 is provided inside the furnace body retort section 24, an array umbrella 4 is provided at the bottom end of the tie rod 3, a shale loading inlet 2 is provided at the top of the furnace body retort section 24, a horizontal gate 1 is provided on the shale loading inlet 2, a retort furnace outlet valve 26 is provided at the top of the furnace body retort section 24, a collecting pipe 25 is provided at the lower part of the retort furnace outlet valve 26, an end of the retort furnace outlet valve 26 is connected to the array umbrella 4, and a furnace outlet thermocouple 27 is provided at the end of the retort furnace outlet valve 26.

[0032] For details, please refer to Figure 1 A hot gas inlet 8 is arranged on the outer side of the furnace body generating section 22 , a mixing chamber 7 is arranged inside the furnace body generating section 22 , and a cast iron plate 11 is arranged at the bottom end of the furnace body generating section 22 .

[0033] For details, please refer to Figure 1A tooth bar 18 is arranged on the outside of the water basin 19, a reamer 13 is arranged on the side of the tooth bar 18, a reducer 14 is transmission-connected to the motor 15, an output shaft of the reducer 14 is connected to the reamer 13, a furnace bottom ball rack 16 is arranged at the bottom of the water basin 19, a furnace bottom water seal 17 is arranged inside the water basin 19, a wind head 10 is arranged above the water basin 19, and an ash discharger 12 is arranged at the bottom of the water basin 19.

[0034] For details, please refer to Figure 1 A manhole 6 is provided on the side of the furnace body retorting section 24.

[0035] Working principle: The end of the retort section thermocouple 23 is located in the second hollow groove 31 on the side of the retort section special-shaped refractory brick 30, and the end of the generating section thermocouple 21 is located in the first hollow groove 29 on the side of the generating section special-shaped refractory brick 28. The end positions of the retort section thermocouple 23 and the generating section thermocouple 21 are just at the bottom of the retort section special-shaped refractory brick 30 and the generating section special-shaped refractory brick 28. The retort section special-shaped refractory brick 30 and the generating section special-shaped refractory brick 28 will The shale inside is separated from the thermocouple 23 of the retorting section and the thermocouple 21 of the generating section, which plays a protective role and reduces the damage frequency of the thermocouples. The first hollow groove 29 and the second hollow groove 31 below the special-shaped refractory bricks 28 of the generating section and the special-shaped refractory bricks 30 of the retorting section are more conducive to the temperature measurement of the thermocouple 21 of the generating section and the thermocouple 23 of the retorting section, which greatly increases the service life of the thermocouples, reduces the frequency of shutdown and maintenance of the retorting furnace, ensures the stable operation of the retorting furnace, and saves material costs at the same time;

[0036] In addition, the first hollow groove 29 and the second hollow groove 31 are protected by the bending baffle 35, so as to protect the end of the thermocouple to prevent shale from splashing and causing damage to the end. At the same time, the air hole 36 can ensure the conduction of heat so that the distillation section thermocouple 23 and the generating section thermocouple 21 can measure the temperature accurately. In addition, when the shale hits the bending baffle 35, the spring 34 is used to reduce the vibration force on the bending baffle 35, and the filter net 37 is used to filter the shale dust, and the dust can fall off by itself in conjunction with the up and down vibration of the bending baffle 35.

[0037] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention based on the technical solution and improved ideas of the present invention, which should be included in the protection scope of the present invention.

Claims

1. A novel thermocouple protection device for a retort furnace, comprising a furnace body generating section (22), a furnace body retort section (24), a water basin (19) and a motor (15), characterized in that: The furnace body retort section (24) is formed by stacking retort section refractory bricks (5), the furnace body generating section (22) is formed by stacking generating section refractory bricks (9), a retort section thermocouple (23) is arranged on the furnace body retort section (24), a generating section thermocouple (21) is arranged on the furnace body generating section (22), a retort section special-shaped refractory brick (30) is arranged on the furnace body retort section (24) and above the retort section thermocouple (23), a second hollow groove (31) is opened on the inner side surface of the retort section special-shaped refractory brick (30), The end of the dry distillation section thermocouple (23) extends to the inner cavity of the second hollow groove (31); a generating section special-shaped refractory brick (28) is arranged on the generating section (22) of the furnace body and above the generating section thermocouple (21); a first hollow groove (29) is opened on the inner side surface of the generating section special-shaped refractory brick (28); the end of the generating section thermocouple (21) extends to the inner cavity of the first hollow groove (29); and shielding mechanisms (20) are respectively arranged on the inner sides of the generating section special-shaped refractory brick (28) and the dry distillation section special-shaped refractory brick (30).

2. A novel retort furnace thermocouple protection device according to claim 1, characterized in that: The shielding mechanism (20) comprises a mounting plate (32) mounted on the inner side of the generating section special-shaped refractory brick (28) and the distillation section special-shaped refractory brick (30); the bottom end of the mounting plate (32) is fixedly connected to a support seat (33); the top surface of the support seat (33) is fixedly connected to a plurality of springs (34); the top ends of the plurality of springs (34) are fixedly connected to a bending baffle (35); the outer side of the bending baffle (35) is provided with a plurality of air holes (36); the inner cavity of the air holes (36) is fixedly sleeved with a filter screen (37); the end surface of the filter screen (37) is flush with the outer surface of the bending baffle (35); a screw (39) is sleeved on the mounting plate (32); the bending baffle (35) is fixedly connected to a slide rod (38); the bottom end of the slide rod (38) is movably sleeved to the bottom of the support seat (33).

3. A novel retort furnace thermocouple protection device according to claim 1, characterized in that: A tie rod (3) is arranged inside the furnace body retort section (24), an array umbrella (4) is arranged at the bottom end of the tie rod (3), a shale loading port (2) is arranged at the top of the furnace body retort section (24), a horizontal gate plate (1) is arranged on the shale loading port (2), a retort furnace outlet valve (26) is arranged at the top of the furnace body retort section (24), a manifold (25) is arranged at the bottom of the retort furnace outlet valve (26), an end of the retort furnace outlet valve (26) is connected to the array umbrella (4), and a furnace outlet thermocouple (27) is arranged at the end of the retort furnace outlet valve (26).

4. A novel retort furnace thermocouple protection device according to claim 1, characterized in that: A hot gas inlet (8) is arranged on the outside of the furnace body generating section (22), a mixing chamber (7) is arranged inside the furnace body generating section (22), and a cast iron plate (11) is arranged at the bottom end of the furnace body generating section (22).

5. A novel retort furnace thermocouple protection device according to claim 4, characterized in that: A tooth bar (18) is arranged on the outside of the water basin (19), a reamer (13) is arranged on the side of the tooth bar (18), a reducer (14) is transmission-connected to the motor (15), an output shaft of the reducer (14) is connected to the reamer (13), a furnace bottom ball rack (16) is arranged at the bottom of the water basin (19), a furnace bottom water seal (17) is arranged inside the water basin (19), a wind head (10) is arranged above the water basin (19), and an ash discharger (12) is arranged at the bottom of the water basin (19).

6. A novel retort furnace thermocouple protection device according to claim 1, characterized in that: A manhole (6) is provided on the side of the furnace body dry distillation section (24).

Images