High-temperature-resistant sealing device for furnace discharge hood

Abstract

The utility model relates to the technical field of calcium carbide furnaces, in particular to a high-temperature-resistant sealing device for a furnace outlet smoke hood, which comprises a calcium carbide furnace, a smoke hood and a blocking device, a furnace outlet is arranged on the left side of the calcium carbide furnace, the smoke hood is arranged on the outer side of the calcium carbide furnace corresponding to the furnace outlet, and the blocking device is arranged between the calcium carbide furnace and the smoke hood corresponding to the position above the furnace outlet. At least two heat insulation beams are arranged on the blocking device in a left-right spaced mode, each heat insulation beam comprises a cylinder, a supporting framework, a pouring framework and refractory mortar, and the cylinder is provided with a pouring cavity penetrating front and back. The furnace outlet is reasonable and compact in structure and convenient to use, the service life of the furnace outlet in a high-temperature state is prolonged by arranging the heat insulation beam, and smoke is effectively prevented from escaping from the position above the furnace outlet; the supporting framework and the pouring framework are arranged in the cylinder body, so that the use strength is enhanced, and the cylinder body is prevented from deforming; by pouring refractory mortar in the cylinder, the fire resistance is enhanced, the service cycle is prolonged, and the replacement and maintenance frequency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide furnaces and relates to a high temperature resistant sealing device for a furnace smoke hood. Background Art

[0002] Carbon and lime generate liquid calcium carbide at high temperature in the calcium carbide furnace. In the normal process of calcium carbide being discharged from the furnace, a large amount of high-temperature smoke and dust will be produced. If it is not effectively recovered and filtered, it will cause serious environmental pollution. At present, there is a gap between the furnace hood and the furnace body of the calcium carbide furnace. It is necessary to use round steel and rock wool to seal above the furnace outlet to prevent smoke from escaping. However, due to its poor sealing effect and short service life, there is a risk of high temperature burns during the replacement operation of the staff. Summary of the invention

[0003] The utility model provides a high temperature resistant sealing device for a furnace outlet smoke hood, which overcomes the above-mentioned shortcomings of the prior art and can effectively solve the problem that smoke is easily emitted above the furnace outlet of the existing calcium carbide furnace.

[0004] The technical solution of the utility model is achieved through the following measures: a high-temperature resistant sealing device for a furnace smoke hood, comprising a calcium carbide furnace, a smoke hood and a barrier device, a furnace outlet is arranged on the left side of the calcium carbide furnace, a smoke hood is arranged on the outside of the calcium carbide furnace corresponding to the furnace outlet, a barrier device is arranged between the calcium carbide furnace and the smoke hood above the furnace outlet, and the barrier device is spaced apart by at least two thermal insulation beams on the left and right sides of the barrier device, the thermal insulation beams comprise a cylinder body, a supporting frame, a casting frame and refractory mud, the cylinder body is provided with a casting cavity which passes through from front to back, at least four supporting frames are fixed along the circumferential interval on the inner side of the cylinder body, at least two casting frames are arranged in the cylinder body, and refractory mud is arranged in the casting cavity.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The above-mentioned insulation beam also includes slurry hooks. A plurality of slurry hooks are fixedly installed at intervals along the circumference on the inner side of the supporting frame and the outer side of the casting frame. The slurry hooks are in a V shape or an L shape.

[0007] The above-mentioned barrier device also includes a supporting cross arm, two of which are fixedly installed at intervals at the front and rear sides of the outer side of the calcium carbide furnace corresponding to the top of the furnace outlet, and the lower side of the insulation beam is seated on the upper side of the supporting cross arm.

[0008] The above-mentioned barrier device also includes thermal insulation wool. Thermal insulation wool is arranged on the upper side of the thermal insulation beam, and the material of the thermal insulation wool is rock wool.

[0009] The above-mentioned barrier device also includes a high-temperature resistant filter bag, and a high-temperature resistant filter bag is arranged on the outside of the insulation beam.

[0010] The utility model has a reasonable and compact structure and is easy to use. By arranging a heat-insulating beam, the service life under high temperature conditions is increased and smoke is effectively blocked from escaping from above the furnace outlet. By arranging a supporting frame and a casting frame in the cylinder body, the use strength is enhanced and the cylinder body deformation is prevented. By casting refractory mud in the cylinder body, the fire resistance is enhanced, the service life is extended, and the replacement and maintenance frequency is reduced. In short, the utility model has a long service life, low cost and good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attached Figure 1 It is a schematic diagram of the main structure of the best embodiment of the utility model.

[0012] Attached Figure 2 For attachment Figure 1 Schematic diagram of the left view structure.

[0013] Attached Figure 3 For attachment Figure 1 Schematic diagram of the enlarged cross-sectional structure of the middle insulation beam.

[0014] The codes in the attached drawings are: 1 for calcium carbide furnace, 2 for smoke hood, 3 for cylinder, 4 for supporting frame, 5 for casting frame, 6 for refractory mud, 7 for slurry hanging hook, 8 for supporting cross arm, 9 for thermal insulation cotton, 10 for high temperature resistant filter bag, and 11 for furnace outlet. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0016] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The layout is described in detail, such as the positional relationship of front, back, top, bottom, left, right, etc., which is based on the attached manual. Figure 1 It is determined by the layout direction.

[0017] The present invention is further described below in conjunction with the embodiments and drawings:

[0018] As attached Figure 1 , 2 As shown, the high-temperature resistant sealing device of the furnace smoke hood 2 includes a calcium carbide furnace 1, a smoke hood 2 and a barrier device. A furnace outlet 11 is arranged on the left side of the calcium carbide furnace 1, and a smoke hood 2 is arranged on the outer side of the calcium carbide furnace 1 corresponding to the furnace outlet 11. A barrier device is arranged between the calcium carbide furnace 1 and the smoke hood 2 above the furnace outlet 11, and the barrier device is spaced apart by at least two insulation beams on the left and right sides of the barrier device. The insulation beams include a cylinder 3, a supporting frame 4, a casting frame 5 and refractory mud 6. The cylinder 3 is provided with a casting cavity which passes through from front to back, and at least four supporting frames 4 are fixed on the inner side of the cylinder 3 at intervals along the circumference, at least two casting frames 5 are arranged in the cylinder 3, and refractory mud 6 is arranged in the casting cavity.

[0019] The utility model increases the service life under high temperature conditions by arranging heat-insulating beams and effectively blocks the escape of smoke from above the furnace outlet 11; by arranging a supporting skeleton 4 and a casting skeleton 5 in the cylinder 3, the use strength is enhanced and the deformation of the cylinder 3 is prevented; by casting refractory mud 6 in the cylinder 3, the fire resistance is enhanced, the service life is extended, and the replacement and maintenance frequency is reduced; according to demand, the number of heat-insulating beams can be 3, the number of supporting skeletons 4 can be 8; the number of casting skeletons 5 can be 3.

[0020] According to actual needs, the high temperature resistant sealing device of the furnace hood 2 can be further optimized and / or improved:

[0021] As attached Figure 3 As shown, the heat insulation beam also includes a slurry hook 7. A plurality of slurry hooks 7 are fixedly installed at intervals along the circumference on the inner side of the support frame 4 and the outer side of the casting frame 5. The slurry hooks 7 are V-shaped or L-shaped. Through such an arrangement, the use strength of the utility model can be enhanced, so that the utility model is more stable and reliable during use. According to the needs, the slurry hook 7 can be made by cutting the existing known angle steel.

[0022] As attached Figure 1 , 2 As shown, the barrier device also includes a supporting cross arm 8, and two supporting cross arms 8 are fixedly installed at intervals on the outer side of the calcium carbide furnace 1 above the furnace outlet 11, and the lower side of the insulation beam is seated on the upper side of the supporting cross arm 8. Through such an arrangement, it is convenient to place and replace the insulation beam.

[0023] As attached Figure 1 , 2 As shown, the blocking device also includes heat insulation cotton 9, and the heat insulation cotton 9 is provided on the upper side of the heat insulation beam, and the material of the heat insulation cotton 9 is rock wool. By providing the heat insulation cotton 9, the effect of blocking the smoke from escaping from above the furnace outlet 11 is improved.

[0024] As attached Figure 3 As shown, the barrier device also includes a high temperature resistant filter bag 10, and a high temperature resistant filter bag 10 is arranged outside the heat insulation beam. By arranging the high temperature resistant filter bag 10, the effect of blocking the smoke from escaping from above the furnace outlet 11 is improved.

[0025] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

[0026] The installation process of the best embodiment of the utility model is as follows: first, the cylinder 3 and the supporting frame 4 are welded and fixed, and then loaded into the high-temperature resistant filter bag 10. Then, the refractory mud 6 is filled into the casting cavity, and the casting frame 5 is inserted into the middle of the casting cavity. Then, it is naturally dried or baked to form an insulating beam. After the insulating beam is completely dry and reaches the hardness condition, it is directly placed above the chimney for use.

Claims

1. A high temperature resistant sealing device for a furnace hood, characterized in that It includes a calcium carbide furnace, a smoke hood and a barrier device. A furnace outlet is arranged on the left side of the calcium carbide furnace, a smoke hood is arranged on the outer side of the calcium carbide furnace corresponding to the furnace outlet, and a barrier device is arranged between the calcium carbide furnace and the smoke hood above the furnace outlet. There are at least two insulation beams on the left and right of the barrier device. The insulation beams include a cylinder, a supporting frame, a casting frame and refractory mud. The cylinder is provided with a casting cavity which passes through from front to back. At least four supporting frames are fixed on the inner side of the cylinder at intervals along the circumference. At least two casting frames are arranged in the cylinder, and refractory mud is arranged in the casting cavity.

2. The high temperature resistant sealing device for the furnace hood according to claim 1 is characterized in that The heat-insulating beam also includes slurry hooks. A plurality of slurry hooks are fixedly installed at intervals along the circumference on the inner side of the supporting frame and the outer side of the casting frame. The slurry hooks are in a V-shape or an L-shape.

3. The high temperature resistant sealing device for the furnace hood according to claim 1 or 2, characterized in that The barrier device also includes a supporting cross arm, two of which are fixedly installed at intervals at the front and rear sides of the outer side of the calcium carbide furnace corresponding to the top of the furnace outlet, and the lower side of the insulation beam is seated on the upper side of the supporting cross arm.

4. The high temperature resistant sealing device for the furnace hood according to claim 1 or 2, characterized in that The barrier device also includes thermal insulation wool. The upper side of the thermal insulation beam is provided with thermal insulation wool, and the material of the thermal insulation wool is rock wool.

5. The high temperature resistant sealing device for the furnace hood according to claim 3 is characterized in that The barrier device also includes thermal insulation wool. Thermal insulation wool is arranged on the upper side of the thermal insulation beam, and the material of the thermal insulation wool is rock wool.

6. The high temperature resistant sealing device for the furnace hood according to claim 1, 2 or 5, characterized in that The barrier device also includes a high temperature resistant filter bag, and a high temperature resistant filter bag is arranged on the outside of the insulation beam.

7. The high temperature resistant sealing device for the furnace hood according to claim 3 is characterized in that The barrier device also includes a high temperature resistant filter bag, and a high temperature resistant filter bag is arranged on the outside of the insulation beam.

8. The high temperature resistant sealing device for the furnace hood according to claim 4 is characterized in that The barrier device also includes a high temperature resistant filter bag, and a high temperature resistant filter bag is arranged on the outside of the insulation beam.

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