Temperature adjusting device of pure oxygen gasification furnace

Abstract

The utility model relates to a temperature adjusting device of a pure oxygen gasification furnace, which belongs to the technical field of coal gasification equipment and comprises a furnace body and a furnace bottom assembly arranged at the bottom of the furnace body, an automatic stoker, a water gas outlet and a material level detector mounting pipe are arranged at the top of the furnace body, a slag outlet is arranged at the bottom of the furnace body and connected with an ash slag box, and the ash slag box is connected with a water tank. A temperature measuring pipe is arranged on the lower middle portion of the furnace body, a temperature measuring device is arranged in the temperature measuring pipe, a steam ring pipe is arranged on the outer side wall of the lower portion of the furnace body, a plurality of steam inlet pipes communicated with the interior of the furnace body are evenly fixed in the steam ring pipe, and a valve is arranged on each steam inlet pipe. According to the utility model, the steam ring pipe is arranged on the furnace body, and then the steam ring pipe and the furnace body are connected through the steam inlet pipe, so that when the temperature measuring device detects that the temperature in the furnace is over-high or deviated, the steam ring pipe valve in the corresponding area can be opened or closed, the temperature or deviated fire phenomenon can be timely adjusted, and the stability of a fire layer in the furnace is ensured; the problems that materials are melted at overtemperature, slag is formed, and deviated fire cannot be adjusted are solved.

Description

Technical Field

[0001] This utility model relates to a temperature regulation device for a pure oxygen gasification furnace, belonging to the technical field of coal gasification equipment. Background Technology

[0002] A pure oxygen oxidizer includes a furnace body and a furnace bottom assembly located at the bottom of the furnace body. The top of the furnace body is equipped with an automatic coal feeder, a water / gas outlet, and a material level detector mounting pipe. The bottom of the furnace body has a slag outlet connected to an ash / slag box. However, current pure oxygen oxidizers experience overheating or uneven heating during operation, which can easily lead to melting and slag formation. Utility Model Content

[0003] This utility model provides a temperature regulation device for a pure oxygen gasification furnace, which solves the problem that the furnace temperature of current pure oxygen gasification furnaces may exceed the limit or deviate from the target temperature, easily causing melting and slagging.

[0004] This utility model relates to a temperature regulating device for a pure oxygen gasification furnace, including a furnace body and a furnace bottom assembly located at the bottom of the furnace body. The top of the furnace body is equipped with an automatic coal feeder, a water and gas outlet, and a material level detector mounting pipe. The bottom of the furnace body is equipped with a slag outlet connected to an ash box. The middle and lower part of the furnace body is equipped with a temperature measuring tube, and a temperature measuring device is installed inside the temperature measuring tube. A steam ring pipe is provided on the lower outer wall of the furnace body. Multiple steam inlet pipes connected to the furnace body are evenly fixed inside the steam ring pipe, and each steam inlet pipe is equipped with a valve.

[0005] As a preferred option, the temperature measuring tubes are arranged in three layers along the vertical direction of the furnace body, with no less than three tubes evenly distributed in each layer, which can better measure the temperature in different areas. The temperature measuring device is a temperature sensor, which is connected to a controller. The valve on the steam inlet pipe is an electric valve, which is connected to the controller, and can automatically adjust the temperature.

[0006] The furnace bottom assembly includes the grate and the chain grate machine that drives the grate to rotate.

[0007] As a preferred embodiment, a sealing valve seat is provided at the connection between the slag outlet and the ash box, and a lower ash seat plate valve is provided above the sealing valve seat. A valve stem is fixed to the top of the lower ash seat plate valve, and the top of the valve stem passes through the top of the slag outlet and is connected to the slag discharge cylinder.

[0008] As a preferred embodiment, a sealing seat is fixed at the top of the slag outlet, and a protective sleeve is fixed at the bottom of the sealing seat and fitted onto the valve stem. The protective sleeve protects the valve stem and prevents the slag discharged from the slag outlet from damaging the valve stem and affecting the sealing effect. A lower pressure cover is provided above the sealing seat, and an upper pressure cover is provided above the lower pressure cover. Sealing packing is provided in the inner hole of both the sealing seat and the lower pressure cover. The upper and lower sealing packing can better seal and prevent air leakage.

[0009] As a preferred embodiment, a lower lifting rod is installed inside the material level detector mounting tube. The material level detector is fixed to the bottom of the lower lifting rod, and an upper lifting rod is fixed to the top of the lower lifting rod. The top of the material level detector mounting tube is equipped with a sealing mechanism to seal the upper lifting rod, and a lifting device is connected to the top of the upper lifting rod. The material level height is detected by raising and lowering the material level detector through the lifting device.

[0010] As a preferred embodiment, the sealing mechanism includes a sealing seat plate fixed to the top of the material level detector mounting pipe. The top of the sealing seat plate has a sealing groove, and a second sealing filler is placed inside the sealing groove. Above the second sealing filler is a packing gland fitted onto the lifting rod, and the packing gland is fixed to the sealing seat plate by bolts. This seals the lifting rod, preventing air leakage.

[0011] As a preferred embodiment, the lifting device includes a support column fixed to one side of the material level detector mounting pipe. A mounting plate is fixed to the top of the support column, and a lifting cylinder is fixed to the upper part of the support column. A lower pressure plate is fixed to the piston rod of the lifting cylinder. A guide rod is fitted on the lower pressure plate, and the top of the guide rod is fixed to the mounting plate. A mounting bracket is fitted on the guide rod below the lower pressure plate. A movable pulley is rotatably mounted on the mounting bracket. Two sprockets are rotatably mounted on the mounting plate, and a chain is connected to the two sprockets. One end of the chain is fixedly connected to an upper lifting rod, and a steel wire rope is fixed to the other end of the chain. The other end of the steel wire rope passes around the movable pulley and is fixed to a fixed pulley, which is mounted on the mounting plate. During the material descent detection, the lifting cylinder rises, the lower pressure plate releases its restriction on the mounting frame, and the material descent is carried out under the gravity of the upper and lower lifting rods. It stops when it reaches the material surface, and during this process, the movable pulley slides along the guide rod. After the material detection is completed, the lifting cylinder retracts, the lower pressure plate slides down along the guide rod, pressing the mounting frame down along the guide rod, thereby lifting the upper lifting rod through the wire rope and chain, driving the material level detector to rise.

[0012] As a preferred embodiment, guide sleeves for guiding chains are provided below both sprockets, and the guide sleeves are fixed to the mounting plate.

[0013] This utility model has the following beneficial effects:

[0014] By installing a steam ring pipe on the furnace body and connecting the steam ring pipe and the furnace body through a steam inlet pipe, the corresponding steam ring pipe valve can be opened or closed when the temperature measuring device detects that the furnace temperature is too high or the fire is off-center. The temperature or fire is adjusted in time to ensure the stability of the fire layer in the furnace and solves the problems of material melting and slagging due to overheating and the inability to adjust the fire. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 for Figure 1 Partial structural diagram Figure 1 ;

[0017] Figure 3 for Figure 1 Partial structural diagram Figure 2 ;

[0018] Figure 4 for Figure 1 Partial structural diagram Figure 3 ;

[0019] Figure 5 for Figure 4 Partial structural diagram;

[0020] Figure 6 for Figure 4 Enlarged structural diagram at point A;

[0021] Figure 7 for Figure 4 Enlarged structural diagram at point B;

[0022] Figure 8 for Figure 1 Partial structural diagram Figure 4 ;

[0023] In the diagram: 1. Furnace body; 2. Automatic coal feeder; 3. Water and gas outlet; 4. Temperature measuring tube; 5. Valve stem; 6. Steam inlet pipe; 7. Steam ring pipe; 8. Grate; 9. Ash box; 10. Chain grate furnace; 11. Lower ash seat valve; 12. Slag outlet; 13. Material level detector mounting pipe; 14. Protective sleeve; 15. Sealing packing one; 16. Sealing seat; 17. Lower pressure cover; 18. Upper pressure cover; 19. Lower lifting rod; 20. Sealing packing two; 21. Upper lifting rod; 22. Support column; 23. Lifting cylinder; 24. Moving pulley; 25. Guide rod; 26. Sprocket; 27. Guide sleeve; 28. Lower pressure plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Example 1, as Figures 1 to 8 As shown, this utility model is a temperature regulating device for a pure oxygen gasification furnace, including a furnace body 1 and a furnace bottom assembly set at the bottom of the furnace body 1. The top of the furnace body 1 is provided with an automatic coal feeder 2, a water gas outlet 3 and a material level detector mounting pipe 13. The bottom of the furnace body 1 is provided with a slag outlet 12, which is connected to an ash box 9. The middle and lower part of the furnace body 1 is provided with a temperature measuring tube 4, which contains a temperature measuring device. The lower outer wall of the furnace body 1 is provided with a steam ring pipe 7. Multiple steam inlet pipes 6 that connect to the furnace body 1 are evenly fixed inside the steam ring pipe 7. Each steam inlet pipe 6 is provided with a valve.

[0026] Working principle: The automatic coal feeder 2 automatically feeds coal into the furnace body 1. The coal burns in the furnace body 1. When the temperature measuring device detects that the furnace temperature is too high or the fire is off-center, it opens the valve on the corresponding steam inlet pipe 6 to introduce steam for cooling. The temperature or fire is adjusted in a timely manner to ensure the stability of the fire layer in the furnace.

[0027] Example 2: Based on Example 1, the temperature measuring tube 4 is arranged in three layers along the vertical direction of the furnace body 1, with no less than three tubes evenly arranged in each layer, preferably four tubes. The temperature measuring device is a temperature sensor, which is connected to a controller. The valve on the steam inlet pipe 6 is an electric valve, and the controller is connected to the electric valve.

[0028] The furnace bottom assembly includes a grate 8 and a chain grate machine 10 that drives the grate 8 to rotate.

[0029] A sealing valve seat is provided at the connection between the slag outlet 12 and the ash box 9. A lower ash seat plate valve 11 is provided above the sealing valve seat. A valve stem 5 is fixed to the top of the lower ash seat plate valve 11. The top of the valve stem 5 passes through the top of the slag outlet 12 and is connected to the slag discharge cylinder.

[0030] A sealing seat 16 is fixed to the top of the slag outlet 12, and a protective sleeve 14 fitted onto the valve stem 5 is fixed to the bottom of the sealing seat 16. A lower pressure cover 17 is provided above the sealing seat 16, and an upper pressure cover 18 is provided above the lower pressure cover 17. Sealing packing material 15 is provided in the inner hole of both the sealing seat 16 and the lower pressure cover 17. The bottom of both the lower pressure cover 17 and the upper pressure cover 18 are conical grooves. The bottom of the lower pressure cover 17 extends into the sealing cavity of the sealing seat 16 and presses down on the top of the lower sealing packing material 15. The bottom of the upper pressure cover 18 extends into the sealing cavity of the top of the lower pressure cover 17 and presses down on the top of the upper sealing packing material 15, thus achieving a double seal and increasing the sealing effect. When slag needs to be discharged, the slag discharge cylinder rises, and the ash and slag in the slag outlet 12 falls into the ash and slag box 9.

[0031] A lower lifting rod 19 is installed inside the material level detector mounting tube 13. The bottom of the lower lifting rod 19 is fixed with a material level detector, and the top of the lower lifting rod 19 is fixed with an upper lifting rod 21. The top of the material level detector mounting tube 13 is provided with a sealing mechanism to seal the upper lifting rod 21, and the top of the upper lifting rod 21 is connected to a lifting device.

[0032] The sealing mechanism includes a sealing seat plate fixed to the top of the material level detector mounting pipe 13. The top of the sealing seat plate is provided with a sealing groove, and a second sealing filler 20 is provided in the sealing groove. A filler cap fitted on the upper lifting rod 21 is provided above the second sealing filler 20. The filler cap is fixed to the sealing seat 16 plate by bolts.

[0033] The lifting device includes a support column 22 fixed to one side of the material level detector mounting pipe 13. A mounting plate is fixed to the top of the support column 22. A lifting cylinder 23 is fixed to the upper part of the support column 22. A lower pressure plate 28 is fixed to the piston rod of the lifting cylinder 23. A guide rod 25 is sleeved on the lower pressure plate 28. The top of the guide rod 25 is fixed to the mounting plate. A mounting frame is sleeved on the guide rod 25 below the lower pressure plate 28. Two guide rods 25 can be provided. A movable pulley 24 is rotatably mounted on the mounting frame. Two sprockets 26 are rotatably mounted on the mounting plate. A chain is connected to the two sprockets 26. One end of the chain is fixedly connected to the lifting rod 21. A wire rope is fixed to the other end of the chain. The other end of the wire rope passes around the movable pulley 24 and is fixed to a fixed pulley. The fixed pulley is mounted on the mounting plate. During the material detection process, the lifting cylinder 23 rises, the lower pressure plate 28 releases its restriction on the mounting frame, and the material level detector descends under the gravity of the upper and lower lifting rods to detect the material. It stops when it reaches the material surface. During this process, the movable pulley 24 slides along the guide rod 25. After the material detection is completed, the lifting cylinder 23 retracts, the lower pressure plate 28 slides down along the guide rod 25, pressing the mounting frame down along the guide rod 25, thereby lifting the upper lifting rod 21 through the wire rope and chain, which drives the material level detector to rise.

[0034] Both sprockets 26 are equipped with guide sleeves 27 for guiding chains, which are fixed to the mounting plate. A counting wheel can be installed on one of the sprockets 26, and a counter is installed on one side of the counting wheel. The counter is connected to a controller and can automatically detect the material level.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0036] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A temperature regulating device for a pure oxygen gasification furnace, comprising a furnace body (1) and a furnace bottom assembly disposed at the bottom of the furnace body (1), wherein the top of the furnace body (1) is provided with an automatic coal feeder (2), a water gas outlet (3) and a material level detector mounting pipe (13), and the bottom of the furnace body (1) is provided with a slag outlet (12), wherein the slag outlet (12) is connected to an ash box (9), characterized in that: A temperature measuring tube (4) is provided in the middle and lower part of the furnace body (1), and a temperature measuring device is provided inside the temperature measuring tube (4). A steam ring pipe (7) is provided on the lower outer wall of the furnace body (1). Multiple steam inlet pipes (6) that connect to the furnace body (1) are uniformly fixed inside the steam ring pipe (7), and a valve is provided on each steam inlet pipe (6).

2. The temperature regulating device for a pure oxygen combustion furnace according to claim 1, characterized in that: The temperature measuring tube (4) is arranged in three layers along the vertical direction of the furnace body (1), with no less than three evenly arranged in each layer. The temperature measuring device is a temperature sensor, and the temperature sensor is connected to a controller. The valve on the steam inlet pipe (6) is an electric valve, and the controller is connected to the electric valve.

3. The temperature regulating device for a pure oxygen combustion furnace according to claim 1, characterized in that: The furnace bottom assembly includes a grate (8) and a chain grate machine (10) that drives the grate (8) to rotate.

4. The temperature regulating device for a pure oxygen combustion furnace according to claim 1, characterized in that: A sealing valve seat is provided at the connection between the slag outlet (12) and the ash box (9). A lower ash seat plate valve (11) is provided above the sealing valve seat. A valve stem (5) is fixed on the top of the lower ash seat plate valve (11). The top of the valve stem (5) passes through the top of the slag outlet (12) and is connected to the slag discharge cylinder.

5. The temperature regulating device for a pure oxygen combustion furnace according to claim 4, characterized in that: A sealing seat (16) is fixed at the top of the slag outlet (12), and a protective sleeve (14) is fixed at the bottom of the sealing seat (16) and fitted onto the valve stem (5). A lower pressure cover (17) is provided above the sealing seat (16), and an upper pressure cover (18) is provided above the lower pressure cover (17). Sealing filler (15) is provided in the inner hole of both the sealing seat (16) and the lower pressure cover (17).

6. The temperature regulating device for a pure oxygen combustion furnace according to claim 1, characterized in that: A lower lifting rod (19) is installed inside the material level detector installation tube (13). A material level detector is fixed at the bottom of the lower lifting rod (19), and an upper lifting rod (21) is fixed at the top of the lower lifting rod (19). A sealing mechanism for sealing the upper lifting rod (21) is provided at the top of the material level detector installation tube (13), and a lifting device is connected to the top of the upper lifting rod (21).

7. The temperature regulating device for a pure oxygen combustion furnace according to claim 6, characterized in that: The sealing mechanism includes a sealing seat plate fixed to the top of the material level detector mounting pipe (13). The top of the sealing seat plate is provided with a sealing groove, and a second sealing filler (20) is provided in the sealing groove. A packing gland fitted on the upper lifting rod (21) is provided above the second sealing filler (20), and the packing gland is fixed to the sealing seat plate (16) by bolts.

8. The temperature regulating device for a pure oxygen combustion furnace according to claim 6, characterized in that: The lifting device includes a support column (22) fixed on one side of the material level detector mounting pipe (13). A mounting plate is fixed on the top of the support column (22). A lifting cylinder (23) is fixed on the upper part of the support column (22). A lower pressure plate (28) is fixed on the piston rod of the lifting cylinder (23). A guide rod (25) is sleeved on the lower pressure plate (28). The top of the guide rod (25) is fixed to the mounting plate. A mounting frame is sleeved on the guide rod (25) below the lower pressure plate (28). A movable pulley (24) is rotatably mounted on the mounting frame. Two sprockets (26) are rotatably mounted on the mounting plate. A chain is connected to the two sprockets (26). One end of the chain is fixedly connected to the lifting rod (21). A wire rope is fixed to the other end of the chain. The other end of the wire rope passes around the movable pulley (24) and is fixed to a fixed pulley. The fixed pulley is mounted on the mounting plate.

9. The temperature regulating device for a pure oxygen combustion furnace according to claim 7, characterized in that: Both sprockets (26) are provided with guide sleeves (27) for guiding chains below them, and the guide sleeves (27) are fixed to the mounting plate.

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