Special mould for protective lining of gasifier process burner

Abstract

The utility model discloses a special mould for a protective lining of a process burner of a gasification furnace, which is characterized in that a cylinder body is in a circular hollow cylindrical structure formed by butting an upper cylinder body and a lower cylinder body, and the front end surfaces of the upper cylinder body and the lower cylinder body are respectively and fixedly connected with an upper front support plate and a lower front support plate; the rear end face of the upper cylinder and the rear end face of the lower cylinder are fixedly connected with an upper rear supporting plate and a lower rear supporting plate respectively, tensioning blocking pieces are fixedly arranged on the two side edges of the upper cylinder and the two side edges of the lower cylinder at intervals respectively, through holes are formed in the middle positions of the tensioning blocking pieces, and a rectangular hole is formed in the top of the upper cylinder. The special mould for the burner protective linings is compact and reasonable in structural design, simple and convenient to support and disassemble, suitable for construction of process burner protective linings of different specifications, wide in use and capable of being repeatedly used, reduces construction difficulty of workers, shortens construction period, improves construction quality of the process burner protective linings, and reduces construction cost of the process burner protective linings. The process burner can work in a good state, and long-period, safe and stable production and operation of the gasification furnace can be guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal chemical gasification furnaces, and in particular relates to a special mold for a protective lining of a process burner of a gasification furnace. Background Art

[0002] The water-coal slurry pressurized gasifier is a key equipment in coal liquefaction technology. The process burner is an extremely critical equipment in the gasification system and is the primary factor affecting the long-term stable operation of the water-coal slurry pressurized gasification system. At present, the installation of the four burners in the domestic four-nozzle opposed gasifier mostly adopts the method of wrapping the burner head with refractory fiber felt. In the process of gasification, if the burner chamber is not tightly closed, the synthetic gas will carry ash and slag into the burner chamber. After the gasifier is shut down, the slag will be wrapped on the burner cooling water coil and the burner chamber wall, causing the cooling water coil and the burner chamber to solidify into one, making it difficult to disassemble the burner, and the coil is pulled and damaged, which greatly reduces the service life of the burner.

[0003] Patent CN201320825095.1 discloses a gasifier burner head protective sleeve, which is a device for protecting the burner head of a four-nozzle opposed water-coal slurry pressurized gasifier. The device is an integrated structure cast by alumina hollow ball castables, and a layer of hollow ball castables must be wrapped around the outside of the process burner. Because the hollow ball castables are fluid, construction is difficult. In the actual construction process, it is necessary to cut cardboard (or other materials) of different shapes and wrap them in the appropriate position of the process burner. Through manual fixation, the hollow ball castable is finally poured into the artificially erected fetal membrane to finally complete the construction of the process burner protective lining. Because the mold is manually erected, the size of the protective lining cannot be guaranteed, and the construction quality cannot be guaranteed, which results in the protective lining being unable to play a due protective role for the process burner. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a special mold for the process burner protection lining of a gasifier. The structure design is compact and reasonable, and the support and disassembly operations are simple and convenient, which solves the problem of difficult construction of the process burner protection lining. The construction of process burner protection linings of different specifications can be completed, the construction period is reduced, the construction quality of the process burner protection lining is improved, and the safe production of the gasifier is ensured.

[0005] The technical scheme adopted by the utility model is: a special mold for a gasification furnace process burner protection liner, including a cylinder and a locking assembly, the cylinder is composed of an upper cylinder and a lower cylinder connected and combined into a circular hollow cylindrical structure, the upper cylinder and the lower cylinder are both semicircular arc structures, the front end faces of the upper cylinder and the lower cylinder are respectively fixedly connected to an upper front support plate and a lower front support plate, the rear end faces of the upper cylinder and the lower cylinder are respectively fixedly connected to an upper rear support plate and a lower rear support plate, tension baffles are respectively and fixedly arranged on both side edges of the upper cylinder and the lower cylinder at intervals, a through hole is provided in the middle position of the tension baffle, and a rectangular hole is provided on the top of the upper cylinder.

[0006] The locking assembly comprises a locking bolt and a locking nut. The locking bolt passes through the tensioning baffle through holes of the upper cylinder and the lower cylinder, and the upper cylinder and the lower cylinder are butt-jointed and fixed together by the locking nut.

[0007] The tightening baffle is flush with the edges of the central axial end surfaces of the upper and lower cylinders and is fixedly arranged horizontally.

[0008] A semicircular protrusion is arranged at the center position of the upper front support plate, and a semicircular groove is arranged at the center position of the lower front support plate. The sizes of the protrusion and the groove are adapted. When the upper front support plate and the lower front support plate are connected, the protrusion and the groove form a letter buckle structure.

[0009] The upper rear support plate and the lower rear support plate at the rear end of the cylinder are both provided with semicircular holes in the center. When the upper rear support plate and the lower rear support plate are combined, the center forms a circular opening, and the size of the circular opening is consistent with the outer diameter of the burner head. U-shaped grooves are provided on both sides of the upper rear support plate and the lower rear support plate to avoid the burner body and the cooling water pipe.

[0010] The upper cylinder, the lower cylinder, the upper front support plate, the lower front support plate, the upper rear support plate and the lower rear support plate are all made of 3-5 mm steel plates.

[0011] The special mold for the process burner protection liner includes a cylinder and a locking assembly. The cylinder is formed by an upper cylinder and a lower cylinder connected together to form a circular hollow cylindrical structure, and a rectangular hole is opened on the top of the upper cylinder. The purpose of this arrangement is: the structure fixes the upper cylinder and the lower cylinder by connecting and connecting the upper cylinder and the lower cylinder through tightening bolts and locking nuts, and the hollow ball casting material is poured from the rectangular hole reserved in the top of the upper cylinder. The design is simple and the installation and disassembly operations are convenient. It is suitable for the construction of process burner protection liners of different specifications and can be reused, which reduces the construction difficulty of workers, shortens the construction period, and improves the construction quality of the process burner protection liner.

[0012] The upper rear support plate and the lower rear support plate at the rear end of the cylinder are both provided with semicircular holes in the center. When the upper rear support plate and the lower rear support plate are combined, a circular opening is formed in the center. The size of the circular opening is consistent with the outer diameter of the burner head. U-shaped grooves are provided on both sides of the upper rear support plate and the lower rear support plate. The purpose of such arrangement is that the size of the circular opening is consistent with the outer diameter of the burner head, and U-shaped grooves are provided on both sides of the upper rear support plate and the lower rear support plate. Such a structure can be used to avoid the burner body and the cooling water pipe, and form a certain distance with the outside of the burner, so as to be used for pouring hollow ball castables, so as to form an effective burner protection lining thickness, protect the process burner from startup, and extend the service life.

[0013] The beneficial effects of the utility model are as follows: the special jig structure design of the process burner protection lining of the four-nozzle opposed gasifier is compact and reasonable, and the support and disassembly operations are simple and convenient, which solves the problem of difficult construction of the process burner protection lining. It is suitable for the construction of process burner protection linings of different specifications, is widely used, and can be reused, which reduces the construction difficulty of workers, shortens the construction period, improves the construction quality of the process burner protection lining, enables the process burner to work in a good state, and can ensure the long-term, safe and stable production operation of the gasifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the burner head of the gasification furnace process of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view structure of the burner protection liner mold after assembly of the utility model process;

[0016] Figure 3 This is a schematic diagram of the top view of the burner protection liner mold after assembly of the utility model process;

[0017] Figure 4 This is a schematic diagram of the structure of the upper front support plate and the lower front support plate after being assembled in the utility model;

[0018] Figure 5 It is a schematic structural diagram of the upper rear support plate and the lower rear support plate of the utility model after being assembled.

[0019] Markings in the figure: 1. Cooling water pipe; 2. Burner body; 3. Protective lining; 4. Upper cylinder; 5. Lower cylinder; 6. Upper front support plate; 7. Lower front support plate; 8. Upper rear support plate; 9. Lower rear support plate; 10. Tension baffle; 11. Locking bolt; 12. Locking nut; 13. Rectangular hole. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, it is a schematic diagram of the structure of the gasification furnace process burner head. The cooling water pipe 1 is coiled around the outer circumference of the burner body 2. A protective lining 3 is arranged on the outer side of the circumference of the process burner. The material of the lining 3 is a hollow ball castable and needs to be constructed with the help of a mold.

[0022] like Figure 2-5As shown, a special mold for a gasification furnace process burner protective liner includes a cylinder and a locking assembly. The cylinder is composed of an upper cylinder 4 and a lower cylinder 5 connected together to form a circular hollow cylindrical structure. The upper cylinder 4 and the lower cylinder 5 are both semicircular arc structures. The front end faces of the upper cylinder 4 and the lower cylinder 5 are respectively fixedly connected to an upper front support plate 6 and a lower front support plate 7. The rear end faces of the upper cylinder 4 and the lower cylinder 5 are respectively fixedly connected to an upper rear support plate 8 and a lower rear support plate 9. Both side edges of the upper cylinder 4 and the lower cylinder 5 are respectively and fixedly provided with tension baffles 10 at intervals. A through hole is provided in the middle of the tension baffle 10, and a rectangular hole 13 is provided on the top of the upper cylinder 4.

[0023] The locking assembly includes a locking bolt 11 and a locking nut 12. The locking bolt 11 passes through the through holes of the tensioning baffles 10 of the upper cylinder 4 and the lower cylinder 5, and the upper cylinder 4 and the lower cylinder 5 are connected and assembled and fixed by the locking nut 12.

[0024] The tightening baffle 10 is flush with the edges of the central axial end surfaces of the upper cylinder 4 and the lower cylinder 5 and is fixedly arranged horizontally.

[0025] A semicircular protrusion is provided at the center position of the upper front support plate 6, and a semicircular groove is provided at the center position of the lower front support plate 7. The sizes of the protrusion and the groove are adapted. When the upper front support plate 6 and the lower front support plate 7 at the front end of the cylinder are connected, the protrusion and the groove form a letter buckle structure.

[0026] The upper rear support plate 8 and the lower rear support plate 9 at the rear end of the cylinder are each provided with a semicircular hole in the center. When the upper rear support plate 8 and the lower rear support plate 9 are combined, the center forms a circular opening, and the size of the circular opening is consistent with the outer diameter of the burner head. U-shaped grooves are provided on both sides of the upper rear support plate 8 and the lower rear support plate 9 to avoid the burner body 2 and the cooling water pipe 1.

[0027] The upper cylinder 4, the lower cylinder 5, the upper front support plate 6, the lower front support plate 7, the upper rear support plate 8, and the lower rear support plate 9 are all made of 3-5 mm steel plates.

[0028] The special mold for the burner protection liner of this process is a steel mold, which mainly includes an upper unit body, a lower unit body and a locking assembly; the upper cylinder body 4, the upper front support plate 6, the upper rear support plate 8 and the four tension baffles 10 are fixed together by welding to form an upper unit body; a rectangular hole 13 is opened on the top of the upper cylinder body 4 of the upper unit body to facilitate the entry of the hollow ball castable; the lower cylinder body 5, the lower front support plate 7, the lower rear support plate 9 and the four tension baffles 10 are fixed together by welding to form a lower unit body; when in use, the upper and lower units are butt-jointed and combined, and the locking assembly is locked. The tightening bolt 11 passes through the through hole of the tightening baffle 10, and the upper and lower units are connected and fixed firmly by the locking nut 12, so that the upper front support plate 6 and the lower front support plate 7 are pressed against the head position of the process burner body 2, and the central circular openings of the upper rear support plate 8 and the lower rear support plate 9 clamp the process burner body 2, and the U-shaped grooves on both sides clamp the cooling water pipes 1 on both sides of the process burner; thereby completing the assembly of the special mold for the burner, and then the hollow ball castable can be added from the rectangular hole 13 on the top of the upper cylinder 4 of the upper unit.

[0029] The special jig for the process burner protection lining of the four-nozzle opposed gasifier has a compact and reasonable structural design, and the installation and disassembly operations are simple and convenient, which solves the problem of difficult construction of the process burner protection lining 3 and is suitable for the construction of process burner protection linings 3 of different specifications. It is widely used and can be reused, which reduces the construction difficulty of workers, shortens the construction period, improves the construction quality of the process burner protection lining 3, enables the process burner to work in a good state, and can ensure the long-term, safe and stable production operation of the gasifier.

[0030] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. A special mold for a gasification furnace process burner protection liner, characterized in that: It includes a cylinder and a locking assembly. The cylinder is composed of an upper cylinder and a lower cylinder connected together to form a circular hollow cylindrical structure. The upper cylinder and the lower cylinder are both semicircular arc structures. The front end faces of the upper cylinder and the lower cylinder are respectively fixedly connected to the upper front support plate and the lower front support plate, and the rear end faces of the upper cylinder and the lower cylinder are respectively fixedly connected to the upper rear support plate and the lower rear support plate. Both side edges of the upper cylinder and the lower cylinder are respectively fixedly provided with tensioning baffles at intervals, a through hole is provided in the middle position of the tensioning baffle, and a rectangular hole is provided on the top of the upper cylinder.

2. The special mold for the burner protection liner of the gasification furnace process according to claim 1, characterized in that: The locking assembly comprises a locking bolt and a locking nut. The locking bolt passes through the tightening baffle through holes of the upper cylinder and the lower cylinder, and the upper cylinder and the lower cylinder are butt-jointed and fixed by the locking nut.

3. The special mold for the burner protection liner of a gasification furnace process according to claim 1, characterized in that: The tensioning baffle is flush with the edges of the central axial end surfaces of the upper and lower cylinders and is fixedly arranged horizontally.

4. The special mold for the burner protection liner of a gasification furnace process according to claim 1, characterized in that: A semicircular protrusion is arranged at the center position of the upper front support plate, and a semicircular groove is arranged at the center position of the lower front support plate. The sizes of the protrusion and the groove match each other, and the protrusion and the groove form a letter buckle structure when the upper front support plate and the lower front support plate are connected.

5. The special mold for the burner protection liner of a gasification furnace process according to claim 1, characterized in that: A semicircular hole is opened in the center of the upper rear support plate and the lower rear support plate. When the upper rear support plate and the lower rear support plate are combined, the center presents a circular opening, the size of the circular opening is consistent with the outer diameter of the burner head, and U-shaped grooves are opened on both sides of the upper rear support plate and the lower rear support plate.

6. The special mold for the burner protection liner of a gasification furnace process according to claim 1, characterized in that: The upper cylinder, the lower cylinder, the upper front support plate, the lower front support plate, the upper rear support plate and the lower rear support plate are all made of 3-5mm steel plates.

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