Ground structure of calcium carbide furnace
By laying steel bars and concrete layers on the ground of the calcium carbide furnace, and setting vacuum holes and insulating layers, the problem of poor ground sealing is solved, the effective collection and treatment of flue gas is achieved, and the stability and safety of the ground structure are improved.
Patent Information
- Application Number
- CN202323525755.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing calcium carbide furnace has poor sealing properties, which makes it difficult to collect and remove flue gas, and the steel plate floor is prone to bend and warping and weld cracks, causing flue gas to overflow through the gap.
The steel bar layer and concrete layer are laid on the steel plate in turn to form a grid structure, and vacuuming holes and insulating layers are installed thereon, and overlapping layers are added to enhance sealing and safety, ensuring centralized collection and treatment of flue gas.
It improves the sealing and stability of the ground structure, avoids flue gas overflow, enhances the flue gas collection effect and safety, and ensures the safe operation of the vacuuming pipe.
Smart Images
Figure CN222187841U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of auxiliary sealing devices for calcium carbide furnaces and relates to a ground structure for a calcium carbide furnace. Background Art
[0002] The high furnace pressure in the calcium carbide furnace sprays material outward, causing material collapse in the calcium carbide furnace. At this time, a large amount of smoke and dust in the calcium carbide furnace is also sprayed out from the connection between the calcium carbide furnace cover and the electrode. Since the calcium carbide furnace cover and the electrode are located on the second and third floors of the calcium carbide furnace, the sprayed smoke will continue to upward and overflow to the fourth floor of the calcium carbide furnace through the ground on the fourth floor of the calcium carbide furnace. The five-story calcium carbide furnace is set, so that there will be more smoke and dust in various parts of the calcium carbide furnace; the floor of the existing calcium carbide furnace is often made of steel plates. After long-term use, the ground layer of the steel plate is bent and warped, which will produce gaps and the sealing of the lower layer is not tight; at the same time, welding is used when the steel plate floor is laid, and the welds are prone to cracking, resulting in poor sealing of the ground layer. The smoke sprayed from the calcium carbide furnace is diffused and continuously overflows upward from the gaps on the ground of the calcium carbide furnace, or from the welding points, which is not conducive to the collection and dust removal of the smoke. Utility Model Content
[0003] Aiming at the technical problem that the existing calcium carbide furnace floor has poor sealing performance and is not conducive to smoke collection and dust removal, the utility model provides a calcium carbide furnace floor structure.
[0004] The utility model lays a steel bar layer and a concrete layer on a steel plate in sequence to form a ground structure with good sealing performance, and the air is concentrated below the ground layer, so that smoke is prevented from overflowing upward from the ground, which is conducive to smoke collection.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A calcium carbide furnace floor structure comprises a steel plate layer, a steel bar layer and a concrete layer which are laid in sequence from bottom to top; the steel bar layer is a grid layer composed of crisscrossed steel bars.
[0007] It is further defined that the diameter of the steel bar is 8 mm to 10 mm, and the mesh size of the steel bar layer is less than 150 mm.
[0008] The thickness of the steel bar layer is 2 to 3 times the thickness of the steel plate layer; the thickness of the concrete layer is 30 to 40 times the thickness of the steel plate layer.
[0009] It is further defined that the thickness of the steel plate layer is 3 mm, the thickness of the steel bar layer is 7 mm to 8 mm; and the thickness of the concrete layer is 100 to 120 mm.
[0010] It is further defined that the ground structure of the calcium carbide furnace also includes dust suction holes, and the dust suction holes penetrate the steel plate layer, the steel bar layer and the concrete layer in sequence from bottom to top.
[0011] It is further defined that an insulating layer is provided on the inner wall of the dust suction hole.
[0012] It is further defined that the insulating layer is a cotton rock layer, a fiber felt layer or a mica board layer, and the thickness of the insulating layer is 10 mm to 30 mm.
[0013] It is further defined that the number of the dust suction holes is one or more, and the plurality of dust suction holes are distributed on the same circumference.
[0014] It is further defined that the calcium carbide furnace floor structure also includes an installation hole, and the installation hole passes through the steel plate layer, the steel bar layer and the concrete layer in sequence from bottom to top.
[0015] It is further defined that the calcium carbide furnace floor structure also includes overlapping layers respectively arranged on the outer wall of the steel plate layer, the outer wall of the steel bar layer and the outer wall of the concrete layer.
[0016] The beneficial effects of the utility model are:
[0017] 1. The utility model lays a steel bar layer and a concrete layer on a steel plate in sequence to form a ground structure. The whole ground layer has good sealing performance, higher stability, and is not easy to warp. It can be used as a calcium carbide furnace floor, especially as a fourth-floor floor. It can prevent smoke from overflowing and diffusing upward from the ground, so that the smoke overflowing from the calcium carbide furnace cover and electrodes is concentrated on the top of the third floor of the calcium carbide furnace, which is convenient for centralized treatment and increases the amount of smoke collected.
[0018] 2. The utility model provides a dust suction hole on the ground structure to facilitate the dust suction pipe to pass through the fourth floor, so as to suck away the smoke concentrated on the top of the third floor of the calcium carbide furnace for centralized treatment; further, an insulating layer is provided on the inner wall of the dust suction hole, which not only enhances the sealing performance, but also prevents the dust suction pipe from being connected to the ground layer to generate electric sparks, thereby improving safety.
[0019] 3. The utility model provides an overlapping layer to ensure smooth connection between the ground structure and the original concrete columns around the calcium carbide furnace, which not only greatly improves the sealing of the ground structure, but also enhances the safety and stability of the ground structure and the calcium carbide furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the ground sealing structure;
[0021] Figure 2 It is a top view of the ground sealing structure;
[0022] Figure 3 for Figure 2 Schematic diagram of the cross section of the middle dust suction hole;
[0023] in:
[0024] 1—Steel plate layer; 2—Rebar layer; 3—Concrete layer; 4—Dust suction hole; 5—Insulation layer; 6—Insulation hole; 7—Overlap layer. DETAILED DESCRIPTION
[0025] The utility model is now described in detail with reference to the accompanying drawings and embodiments.
[0026] Example 1
[0027] See also Figure 1 The calcium carbide furnace floor structure provided in this embodiment includes a steel plate layer 1, a steel bar layer 2 and a concrete layer 3 laid in sequence from bottom to top; the steel bar layer 2 is a grid layer composed of crisscrossing steel bars.
[0028] Preferably, the diameter of the steel bar is 8 mm to 10 mm, and the mesh size of the steel bar layer 2 is less than 150 mm. More preferably, the diameter of the steel bar is 8 mm.
[0029] In this embodiment, the thickness of the steel bar layer 2 is 2 to 3 times the thickness of the steel plate layer 1 ; the thickness of the concrete layer 3 is 30 to 40 times the thickness of the steel plate layer 1 .
[0030] Preferably, the thickness of the steel plate layer 1 is 3 mm, the thickness of the steel bar layer 2 is 7 mm to 8 mm; and the thickness of the concrete layer 3 is 100 to 120 mm.
[0031] During implementation, a grid-shaped steel bar layer 2 is set on the steel plate layer 1, and the grid of the entire steel bar layer 2 is poured. Finally, a concrete layer 3 is set and smoothed and solidified to ensure the strength and sealing of the ground. In this way, the smoke overflowing from the furnace cover of the calcium carbide furnace below the fourth floor will not easily dissipate upward from the fourth floor ground, but will be concentrated on the top of the third floor of the calcium carbide furnace and centrally processed by a dust suction device.
[0032] Example 2
[0033] See also Figure 2 and Figure 3 On the basis of Example 1, the calcium carbide furnace floor structure provided in this embodiment further includes dust suction holes 4, and the dust suction holes 4 penetrate the steel plate layer 1, the steel bar layer 2 and the concrete layer 3 from bottom to top in sequence.
[0034] In this embodiment, the function of the dust suction hole 4 is to facilitate the dust suction pipe to pass through the fourth floor, so as to suck away the smoke concentrated on the top of the third floor of the calcium carbide furnace for centralized treatment.
[0035] Since the material of the dust suction duct is Q235b, an insulating layer 5 is provided on the inner wall of the dust suction hole 4 to enhance the sealing performance while preventing the dust suction duct from being connected to the ground layer to generate electric sparks, thereby improving safety.
[0036] In this embodiment, the insulating layer 5 is a cotton rock layer, a fiber felt layer or a mica board layer. Preferably, the fiber felt layer is a glass fiber felt layer.
[0037] In this embodiment, the thickness of the insulating layer 5 is 10 mm to 30 mm.
[0038] Preferably, the insulating layer 5 is a cotton rock layer with a thickness of 10 mm, the insulating layer 5 is a mica board layer with a thickness of 10 mm, the insulating layer 5 is a fiber felt layer with a thickness of 30 mm, and the insulating layer 5 is a cotton rock layer with a thickness of 20 mm.
[0039] In this embodiment, there are one or more dust suction holes 4, and the multiple dust suction holes 4 are distributed on the same circumference.
[0040] Specifically, the function of the dust suction holes 4 is to allow the dust suction pipe to pass through the ground layer and be placed on the third floor of the calcium carbide furnace. The number of the dust suction holes 4 is designed according to the specific conditions of the actual dust suction pipe.
[0041] Preferably, there are 8 dust suction holes 4. Since the smoke on the third floor of the calcium carbide furnace is concentrated on the furnace cover and electrodes of the calcium carbide furnace, dust suction holes 4 are arranged in the peripheral direction of the calcium carbide furnace body. During implementation, the 8 dust suction holes 4 are evenly distributed along the circumference of the calcium carbide furnace body to improve the dust removal effect of the smoke.
[0042] Example 3
[0043] See also Figure 2 On the basis of Example 1 or Example 2, the calcium carbide furnace floor structure provided in this embodiment further includes a mounting hole 6, and the mounting hole 6 passes through the steel plate layer 1, the steel bar layer 2 and the concrete layer 3 from bottom to top in sequence.
[0044] Specifically, the function of the installation hole 6 is to avoid the equipment installed on the fourth floor of the calcium carbide furnace. The shape and number of the installation holes 6 are designed according to the specific conditions of the equipment on the fourth floor of the calcium carbide furnace, and no limitation is made here.
[0045] Preferably, see Figure 2 The mounting hole 6 is circular and is mounted on the outside of the related equipment of the calcium carbide furnace system. The inner diameter of the mounting hole 6 is larger than the outer diameter of the related equipment, that is, a gap is left between the outer wall of the mounting hole 6 and the related equipment, so that the ground structure is disconnected from the electrodes on the calcium carbide furnace and the calcium carbide furnace material pipe to avoid electrical sparks between the calcium carbide furnace and the ground, thereby ensuring the safety of on-site operations.
[0046] Example 4
[0047] See also Figure 1 Based on Example 1, Example 2 or Example 3, the calcium carbide furnace floor structure provided in this embodiment also includes an overlapping layer 7 respectively arranged on the outer wall of the steel plate layer 1, the outer wall of the steel bar layer 2 and the outer wall of the concrete layer 3 (only the overlapping layer on one side is shown in the figure, and other connections are not shown).
[0048] This is because when the ground structure is laid, the ground structure will be connected to the original concrete columns around the calcium carbide furnace. In order to improve the connection tightness, the overlapping layer 7 is provided. Preferably, the overlapping layer 7 is formed by pouring steel bars and concrete.
[0049] Specifically, when laying the ground structure, when laying at the junction of the outer wall of the ground structure and the original concrete layer, it is first cleaned, and then the steel bars are implanted and then concrete is poured to form an overlap layer 7 to ensure a smooth transition connection between the ground structure and the original concrete column. Not only is the sealing of the ground structure greatly improved, but the safety and stability of the ground structure and the calcium carbide furnace system are also enhanced.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above embodiments, any modification of the technical solution recorded in the above embodiments or equivalent replacement of some of the technical features therein by ordinary technicians in this field should fall within the protection scope of the utility model.
Claims
1. A calcium carbide furnace floor structure, characterized in that: It comprises a steel plate layer (1), a steel bar layer (2) and a concrete layer (3) which are laid in sequence from bottom to top; the steel bar layer (2) is a grid layer composed of steel bars crisscrossed in all directions.
2. The calcium carbide furnace floor structure according to claim 1, characterized in that: The diameter of the steel bar is 8 mm to 10 mm, and the mesh size of the steel bar layer (2) is less than 150 mm.
3. The calcium carbide furnace floor structure according to claim 2, characterized in that: The thickness of the steel bar layer (2) is 2 to 3 times the thickness of the steel plate layer (1); and the thickness of the concrete layer (3) is 30 to 40 times the thickness of the steel plate layer (1).
4. The calcium carbide furnace floor structure according to claim 3, characterized in that: The thickness of the steel plate layer (1) is 3 mm, the thickness of the steel bar layer (2) is 7 mm to 8 mm; and the thickness of the concrete layer (3) is 100 to 120 mm.
5. The calcium carbide furnace floor structure according to any one of claims 1 to 4, characterized in that: The calcium carbide furnace floor structure also includes dust suction holes (4), and the dust suction holes (4) penetrate the steel plate layer (1), the steel bar layer (2) and the concrete layer (3) in sequence from bottom to top.
6. The calcium carbide furnace floor structure according to claim 5, characterized in that: An insulating layer (5) is provided on the inner wall of the dust suction hole (4).
7. The calcium carbide furnace floor structure according to claim 6, characterized in that: The insulating layer (5) is a cotton rock layer, a fiber felt layer or a mica board layer, and the thickness of the insulating layer (5) is 10 mm to 30 mm.
8. The calcium carbide furnace floor structure according to claim 5, characterized in that: There are one or more dust suction holes (4), and the plurality of dust suction holes (4) are distributed on the same circumference.
9. The calcium carbide furnace floor structure according to claim 1, characterized in that: The calcium carbide furnace floor structure also includes a mounting hole (6), and the mounting hole (6) passes through the steel plate layer (1), the steel bar layer (2) and the concrete layer (3) in sequence from bottom to top.
10. The calcium carbide furnace floor structure according to claim 1, characterized in that: The calcium carbide furnace floor structure also includes overlapping layers (7) respectively arranged on the outer wall of the steel plate layer (1), the outer wall of the steel bar layer (2) and the outer wall of the concrete layer (3).