Heat-preservation and anti-corrosion tank top of liquid sulfur tank

Abstract

The utility model discloses a heat-preservation and anti-corrosion pool top of a liquid sulfur pool, and relates to the technical field of liquid sulfur pools. According to the technical scheme, the device comprises a pool top plate and a plurality of top beams, the top beams are arranged at the top of the pool top plate at intervals, a first heat preservation and insulation layer and a first anti-corrosion layer are sequentially arranged at the bottom of the pool top plate from top to bottom, the first heat preservation and insulation layer is made of foam glass plates or hydrophobic expanded perlite plates, and the first anti-corrosion layer is made of stainless steel plates; and a liquid sulfur pump is mounted outside the pool top plate. The utility model solves the problems of the existing liquid sulfur pool in the aspects of volume utilization rate, gas accumulation, difficult anti-corrosion construction and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sulfur pools, in particular to a liquid sulfur pool top with heat preservation and corrosion resistance. Background Art

[0002] In the sulfur production process, liquid sulfur tanks are crucial storage and degassing facilities. Existing liquid sulfur tanks are mostly concrete structures, typically divided into a liquid sulfur degassing tank and a lifting tank, separated by a partition wall. When the liquid sulfur degassing tank is full, the partition wall overflows into the lifting tank. The overflow port is typically located below the bottom of the tank's roof beam to facilitate the flow of waste gases from the top of the tank into the gas phase. This waste gas is typically extracted by an evacuator and transported to upstream process equipment for harmless treatment. However, this current liquid sulfur tank design presents the following issues:

[0003] (1) Low volume utilization: The conventional liquid sulfur pool top beam adopts a built-in design, which occupies the space inside the pool and reduces the effective volume of the liquid sulfur pool. The height below the top plate of the conventional liquid sulfur pool is 300-500mm (the specific height varies depending on the size of the liquid sulfur pool), and the overflow port is usually 200-300mm lower than the top beam. Therefore, the built-in structural design of the top beam reduces the effective volume of the liquid sulfur pool.

[0004] (2) Gas accumulation problem: In conventional top beams, the liquid sulfur pool is built in. Except for the raised parts, the gas overflowing from the liquid sulfur can flow smoothly to the exhaust gas extraction outlet. However, the top beam will block the flow of gas, resulting in the accumulation of gas overflowing from the liquid sulfur pool between the top beams, and the concentration of corrosive media in the gas will continue to increase.

[0005] (3) Construction difficulties: The anti-corrosion layer of the top plate of the liquid sulfur pool needs to be of a certain thickness to meet the anti-corrosion requirements. Conventional anti-corrosion layer materials cannot meet the requirements in one application and need to be applied multiple times. In order to prevent the anti-corrosion material on the top of the pool from cracking, fiberglass cloth should be added in the middle. In addition, since the anti-corrosion on the top of the pool needs to be applied upwards and multiple times, the construction is difficult. The construction quality is greatly affected by the experience level of the construction workers, and the treatment of the concrete base will also affect the bonding strength of the anti-corrosion material. Therefore, anti-corrosion is quite difficult, especially at the corners of the beams.

[0006] In summary, it is necessary to develop a new liquid sulfur pool top structure to solve the above problems. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a liquid sulfur pool roof with thermal insulation and corrosion resistance, and solve the problems of the prior liquid sulfur pool in terms of volume utilization, gas accumulation, and difficulty in corrosion resistance construction.

[0008] The technical solution of the utility model is:

[0009] The thermal insulation and corrosion-resistant liquid sulfur pool roof includes a pool roof plate and multiple top beams. The multiple top beams are arranged at intervals on the top of the pool roof plate. The bottom of the pool roof plate is sequentially provided with a thermal insulation layer 1 and an anti-corrosion layer from top to bottom. The thermal insulation layer 1 is made of foam glass board or hydrophobic expanded perlite board, and the anti-corrosion layer 1 is made of stainless steel board. A liquid sulfur pump is installed on the outside of the pool roof plate.

[0010] Preferably, the pool roof and top beams are both made of concrete.

[0011] Preferably, the thermal insulation layer is formed by paving foam glass boards or hydrophobic expanded perlite boards with staggered joints.

[0012] Preferably, the stainless steel plate is a 316L stainless steel plate, a 304 stainless steel plate, a 304L stainless steel plate or a 321 stainless steel plate with a thickness of ≥2 mm.

[0013] Preferably, the stainless steel plate is a 316L stainless steel plate with a thickness of ≥2.5 mm.

[0014] Preferably, the pool top plate is provided with a manhole and a light-transmitting hole.

[0015] Preferably, a second thermal insulation layer and a second anti-corrosion layer are provided on the inner walls of the manhole and the light-transmitting hole.

[0016] Preferably, the second thermal insulation layer is made of a foam glass plate or a hydrophobic expanded perlite plate, and the second anti-corrosion layer is made of a stainless steel plate.

[0017] Preferably, the outer surface of the pool top plate and the outer surface of the top beam are respectively provided with a waterproof protective layer.

[0018] Preferably, the waterproof protective layer includes, from bottom to top, a slope layer, a leveling layer, an isolation layer, a waterproof layer, and a protective layer.

[0019] Preferably, the slope layer is made of expanded perlite concrete, the leveling layer and the isolation layer are made of cement mortar, the waterproof layer is made of waterproof coating and waterproof membrane, and the protective layer is made of fine stone concrete, floor tiles, precast concrete panels or stone; a bonding layer made of polymer cement mortar is also provided between the isolation layer and the protective layer.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) Improved volume utilization: After the top beam of the liquid sulfur pool of the present invention is placed externally, the effective volume of the liquid sulfur pool is greatly increased under the same volume, the space is effectively utilized, and the storage capacity of liquid sulfur is increased. (2) Gas accumulation is greatly reduced: After the top beam of the liquid sulfur pool of the present invention is placed externally, gas accumulation only occurs in local areas such as manholes and light holes, and no harmful gas accumulates in other areas. This solves the problem of harmful gas accumulation between the top beams that exists when the existing top beams are placed internally, and reduces the problem of gas corrosion. (3) Greatly improved anti-corrosion service life: Select stainless steel plates with good corrosion resistance of appropriate thickness, and the welding process and weld inspection have strict specifications and requirements. The construction quality is more guaranteed under the premise of strict control, which greatly improves the anti-corrosion service life. In the early stage, it is basically only necessary to inspect the weld area. In the later maintenance, it is only necessary to check whether the entire plate has corrosion penetration or thinning. The maintenance is relatively simple. (4) The utility model is provided with a heat-insulating layer, which can greatly reduce the temperature of the concrete part. The pool top plate and top beam that originally required heat-resistant concrete can be replaced with ordinary concrete, thereby reducing the cost of the pool top concrete part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of the liquid sulfur pool in the utility model.

[0023] Figure 2 The utility model is a cross-sectional view of a top plate of a liquid sulfur pool with heat preservation and corrosion resistance.

[0024] Figure 3 yes Figure 2 A partial enlarged view of point A.

[0025] In the figure, 1. Pool roof; 2. Top beam; 3. Thermal insulation layer 1; 4. Anti-corrosion layer 1; 5. Light hole; 6. Thermal insulation layer 2; 7. Anti-corrosion layer 2; 8. Waterproof protective layer; 801. Slope layer; 802. Leveling layer; 803. Waterproof layer; 804. Isolation layer; 805. Protective layer; 806. Adhesive layer; 9. Liquid sulfur pool; 901. Liquid sulfur degassing pool; 902. Lifting pool. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0027] Example 1

[0028] like Figure 1 As shown, taking a 16.5m×13m×4m liquid sulfur pool 9 of a sulfur device as an example, it includes a liquid sulfur degassing pool 901 and a lifting pool 902. This embodiment provides a liquid sulfur pool top with thermal insulation and corrosion resistance, such as Figure 2As shown, it includes a pool top plate 1 made of concrete and multiple top beams 2. The multiple top beams 2 are arranged at intervals on the top of the pool top plate 1, that is, the top beams 2 of the liquid sulfur pool 9 are external; the bottom of the pool top plate 1 is sequentially provided with a thermal insulation layer 3 and an anti-corrosion layer 4 from top to bottom; a liquid sulfur pump is installed outside the pool top plate 1 to pump out the liquid sulfur in the liquid sulfur pool 9.

[0029] The anti-corrosion layer 4 at the bottom of the pool roof 1 is made of 2.5mm thick 316L stainless steel. Its sealing and integrity must be guaranteed. After construction, the area surrounding the welds should be pickled and passivated to achieve optimal corrosion protection. The thermal insulation layer 3 is constructed from two layers of hydrophobic expanded perlite sheets laid with staggered seams to minimize through-holes and enhance the insulation's effectiveness.

[0030] By placing the top beam 2 externally in the liquid sulfur tank 9 of this embodiment, the effective volume of the tank 9 is increased while maintaining the same volume. Taking the 16.5m × 13m × 4m liquid sulfur tank 9 of this embodiment as an example, when the top beam 2 is internal, the tank's internal space is limited by the beam 2, resulting in a smaller headroom. With the top beam 2 externally positioned, the space is effectively utilized, increasing the storage capacity of liquid sulfur and boosting the effective utilization rate by over 12%. Furthermore, the external placement of the top beam 2 significantly reduces the accumulation of harmful gases between the beams 2. Furthermore, the internal thermal insulation layer 3 significantly reduces the temperature of the concrete. This allows the tank's roof 1 and top beam 2, which originally required heat-resistant concrete, to be replaced with ordinary concrete, thereby reducing the cost of the concrete portion of the tank roof.

[0031] Example 2

[0032] On the basis of Example 1, Figure 2 As shown, the pool roof 1 is equipped with a manhole and a light hole 5. The manhole facilitates access to the liquid sulfur pool 9 for maintenance, while the light hole 5 provides lighting and ventilation for maintenance work. The inner walls of the manhole and light hole 5 are provided with a thermal insulation layer 2 6 and an anti-corrosion layer 2 7. The thermal insulation layer 2 6 is composed of two layers of hydrophobic expanded perlite slabs laid with staggered joints. This provides insulation for the manhole and light hole 5, thereby ensuring the structural safety of the ordinary concrete portion of the pool roof. The anti-corrosion layer 2 7 is made of 2.5 mm thick 316L stainless steel.

[0033] Example 3

[0034] On the basis of Example 1, Figure 2 As shown, the outer surface of the pool roof 1 and the outer surface of the top beam 2 are respectively provided with a waterproof protective layer 8. Figure 3As shown, the waterproof protective layer 8 includes, from bottom to top, a slope layer 801 made of expanded perlite concrete, a leveling layer 802 made of cement mortar, a waterproof layer 803 made of waterproof coating and waterproof membrane, an isolation layer 804 made of cement mortar, a bonding layer 806 made of M20 polymer cement mortar (the mass ratio of cement to sand is 1:2.5), and a protective layer 805 made of anti-slip floor tiles.

Claims

1. The thermal insulation and corrosion resistant liquid sulfur pool roof is characterized by: The invention comprises a pool top plate (1) and a plurality of top beams (2), wherein the plurality of top beams (2) are arranged at intervals on the top of the pool top plate (1), and the bottom of the pool top plate (1) is provided with a heat-insulating layer (3) and an anti-corrosion layer (4) in sequence from top to bottom, wherein the heat-insulating layer (3) is made of a foam glass plate or a hydrophobic expanded perlite plate, and the anti-corrosion layer (4) is made of a stainless steel plate; and a liquid sulfur pump is installed on the outside of the pool top plate (1).

2. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 1, characterized in that: The pool top plate (1) and top beam (2) are both made of concrete.

3. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 1, characterized in that: The thermal insulation layer 1 (3) is formed by staggered laying of foam glass panels or hydrophobic expanded perlite panels.

4. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 1, characterized in that: The stainless steel plate is a 316L stainless steel plate, a 304 stainless steel plate, a 304L stainless steel plate or a 321 stainless steel plate with a thickness of ≥2 mm.

5. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 1, characterized in that: The pool top plate (1) is provided with a manhole and a light-transmitting hole (5).

6. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 5, characterized in that: A second heat-insulating layer (6) and a second anti-corrosion layer (7) are provided on the inner walls of the manhole and the light-transmitting hole (5).

7. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 6, characterized in that: The second thermal insulation layer (6) is made of foam glass board or hydrophobic expanded perlite board, and the second anti-corrosion layer (7) is made of stainless steel board.

8. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 1, characterized in that: The outer surface of the pool top plate (1) and the outer surface of the top beam (2) are respectively provided with a waterproof protective layer (8).

9. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 8, characterized in that: The waterproof protective layer (8) comprises, from bottom to top, a slope layer (801), a leveling layer (802), a waterproof layer (803), an isolation layer (804), and a protective layer (805).

10. The heat-insulating and corrosion-resistant liquid sulfur pool roof according to claim 9, characterized in that: The slope layer (801) is made of expanded perlite concrete, the leveling layer (802) and the isolation layer (804) are made of cement mortar, the waterproof layer (803) is made of waterproof coating and waterproof membrane, and the protective layer (805) is made of fine stone concrete, floor tiles, precast concrete panels or stone; a bonding layer (806) made of polymer cement mortar is also provided between the isolation layer (804) and the protective layer (805).

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