A device for improving the effect of yellow phosphorus spraying

Abstract

This utility model discloses a device for improving the spraying effect of yellow phosphorus, aiming to solve the problem of dangerous and production-disrupting nozzle cleaning in traditional yellow phosphorus production. The device features spraying components installed in the middle and top of the spray tower. These components consist of a ring-shaped water supply pipe, a support pipe, a detachable mounting pipe, and spray heads, with the spray heads angled downwards to optimize the spraying angle. The mounting pipe is tightly connected to the tower body via a sealing cover and sealing ring to ensure airtightness; the ring-shaped water supply pipe is securely supported by a support ring and support rod. A bottom circulating pump circulates water to the water supply pipe, forming a closed-loop system. This device allows for online nozzle replacement, eliminating cleaning safety hazards and ensuring continuous production; the double-layer spraying structure improves condensation efficiency, significantly increasing yellow phosphorus yield; and it optimizes water circulation, reducing resource waste and maintenance frequency.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and in particular to a device for improving the spraying effect of yellow phosphorus. Background Technology

[0002] In my country's industrial yellow phosphorus manufacturing sector, the electric furnace method is commonly used. A typical process involves processing phosphate rock, silica, and alumina into a uniform mixture according to a specific ratio, which is then fed into the yellow phosphorus electric furnace through a feed pipe. A reduction reaction occurs in the molten zone of the furnace, producing a mixture of yellow phosphorus and coal gas. This mixture is then condensed through a gas guide pipe and a three-stage spray tower, achieving separation of coal gas and phosphorus vapor. The three-stage spray tower is typically 24 meters high, with several nozzles installed at the top. The mixture of coal gas and phosphorus vapor enters from the bottom of the tower, undergoing heat exchange and condensation to recover yellow phosphorus in a counter-current manner. The spraying effect of the nozzles at the top of the tower determines the condensation efficiency and yield of the yellow phosphorus.

[0003] Traditional yellow phosphorus production is continuous, and the spray water is usually recycled after sedimentation. In actual production, it is necessary to shut down the plant and regularly clean the nozzles at the top of the spray tower to improve the spraying effect of yellow phosphorus. However, this process involves coal gas and phosphorus vapor, which poses a significant risk to personnel. At the same time, shutdown for treatment also affects the normal production of yellow phosphorus. Summary of the Invention

[0004] The technical problem this invention aims to solve is that there are safety hazards and the operation of the equipment are affected when cleaning the nozzles regularly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a device for improving the spraying effect of yellow phosphorus, including spraying components respectively set in the middle and top of the spraying tower. The spraying components include an annular water supply pipe and a support pipe evenly distributed on the annular water supply pipe. An installation pipe is detachably connected to the support pipe, and a spray head is connected to the installation pipe. The spray head is located inside the spraying tower.

[0006] Preferably, the support pipe is arranged vertically, the top end of the support pipe is connected to a right-angle connecting elbow via a flange, the mounting pipe is connected to the connecting elbow via a flange, the movable end of the spray head is arranged inclined downwards, and the bottom end of the spray head is located above the bottom of the mounting pipe.

[0007] Preferably, a sealing cover is fixedly connected to the installation pipe. The outer diameter of the sealing cover is larger than the opening diameter on the side wall of the spray tower for the installation pipe to be inserted, and the sealing cover fits against the spray tower when the installation pipe is connected to the support pipe.

[0008] Preferably, a sealing ring is provided between the sealing cover and the spray tower, and an installation groove for accommodating the sealing ring is provided on the end wall of the sealing cover.

[0009] Preferably, an annular support ring is provided below the annular water supply pipe. The support ring is fixed to the outer wall of the spray tower. A support rod is provided at the top of the support ring. The top end of the support rod is connected to the annular water supply pipe. The support rods are distributed at equal angles around the axis of the support ring.

[0010] Preferably, an arc-shaped support block is fixedly connected to the top of the support rod, and the inner sidewall of the support block is in contact with the bottom of the annular water supply pipe.

[0011] Preferably, a circulating pump is connected to the bottom of the spray tower, and the output end of the circulating pump is connected to a circulating water supply pipe, which is connected to the annular water supply pipe.

[0012] This invention provides a device for improving the spraying effect of yellow phosphorus, which has the following beneficial effects.

[0013] 1. The spray head is detachably connected to the support pipe via the installation pipe, allowing for online replacement or cleaning of the spray head without stopping the machine. This avoids the safety hazards of gas and phosphorus vapor leakage during traditional shutdown cleaning, while also eliminating production interruptions caused by shutdowns, thus improving the production efficiency of yellow phosphorus.

[0014] 2. The spray heads are arranged at an angle downwards with their bottoms higher than the bottom of the installation pipe. Combined with the double-layer spray assembly in the middle and top, this forms a multi-angle cross-spraying area, increasing the condensation contact area of ​​the coal gas and phosphorus vapor mixture within the spray tower. This improves the yellow phosphorus condensation efficiency and significantly increases the yield. Furthermore, the double-layer spray assembly allows for staggered maintenance, avoiding any impact on yellow phosphorus production. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0017] In the diagram: 1. Spray tower; 2. Mixed gas input pipe; 3. Spray assembly; 4. Circulating pump; 5. Circulating water supply pipe; 31. Support ring; 32. Support rod; 33. Support block; 34. Circular water supply pipe; 35. Support pipe; 36. Connecting elbow; 37. Installation pipe; 38. Sealing cover; 381. Sealing ring; 39. Spray head. Detailed Implementation

[0018] like Figure 1 and Figure 2As shown, this utility model provides a device for improving the spraying effect of yellow phosphorus, including spraying components 3 respectively disposed in the middle and top of the spraying tower 1. The spraying components 3 include annular water supply pipe 34 and support pipes 35 evenly distributed on the annular water supply pipe 34. The support pipe 35 is detachably connected to the mounting pipe 37, and the mounting pipe 37 is connected to the spraying head 39, which is located inside the spraying tower 1.

[0019] Spraying components 3 are installed at the top and middle of the spray tower 1 to spray the coal gas and phosphorus vapor transported from the mixing input pipe 2. When maintaining the spray head 39, the top or bottom spraying components 3 can be maintained separately to maintain the operation of the spray tower 1.

[0020] When maintaining the spray head 39, the installation pipe 37 is removed from the support pipe 35, and then pulled out of the spray tower 1. The spray head 39 is then taken out of the spray tower 1, and the installation hole on the spray tower 1 is sealed with a magnetically adsorbed cover plate. The spray head 39 is then cleaned. After cleaning, the installation pipe 37 is installed.

[0021] like Figure 1 and Figure 2 As shown, to facilitate the disassembly of the installation pipe 37, the support pipe 35 is arranged vertically. The top end of the support pipe 35 is connected to a right-angle connecting elbow 36 via a flange. The installation pipe 37 is connected to the connecting elbow 36 via a flange. The movable end of the spray head 39 is arranged at an angle downwards, and the bottom end of the spray head 39 is located above the bottom of the installation pipe 37. When disassembling the installation pipe 37, first close the valve on the water supply pipe of the corresponding annular water supply pipe 34, then remove the bolts on the flange plate between the connecting elbow 36 and the support pipe 35 to separate the connecting elbow 36 from the support pipe 35. The installation pipe 37, along with the connecting elbow 36 and the spray head 39, can then be directly removed from the spray tower 1 for cleaning of the spray head 39. The spray heads 39 are arranged at an angle downwards. Six spray heads 39 are installed inside the spray tower 1. The spray heads 39 can spray the inside of the spray tower 1 thoroughly, and the openings on the spray tower 1 through which the installation pipe 37 passes can be easily passed through by the spray heads 39.

[0022] like Figure 1 and Figure 2 As shown. A sealing cover 38 is fixedly connected to the mounting pipe 37. The outer diameter of the sealing cover 38 is larger than the opening diameter on the side wall of the spray tower 1 for the mounting pipe 37 to be inserted into, and the sealing cover 38 fits snugly against the spray tower 1 when the mounting pipe 37 is connected to the support pipe 35. By installing the sealing cover 38 on the mounting pipe 37, the opening on the spray tower 1 is sealed, ensuring the airtightness of the spray tower 1.

[0023] like Figure 2As shown, a sealing ring 381 is provided between the sealing cover 38 and the spray tower 1, and an installation groove for accommodating the sealing ring 381 is provided on the end wall of the sealing cover 38. By installing the sealing ring 381 on the end wall of the sealing cover 38, the sealing performance of the spray tower 1 is further improved.

[0024] like Figure 1 and Figure 2 As shown, an annular support ring 31 is provided below the annular water supply pipe 34. The support ring 31 is fixed to the outer wall of the spray tower 1. A support rod 32 is provided at the top of the support ring 31, and the top end of the support rod 32 is connected to the annular water supply pipe 34. The support rods 32 are distributed at equal angles around the axis of the support ring 31. By providing the support ring 31 and the support rods 32 on the support ring 31, the annular water supply pipe 34 is fully supported, maintaining the stability of the annular water supply pipe 34.

[0025] like Figure 1 and Figure 2 As shown, an arc-shaped support block 33 is fixedly connected to the top of the support rod 32, and the inner sidewall of the support block 33 fits against the bottom of the annular water supply pipe 34. The arc-shaped support block 33 can increase the contact area between the support rod 32 and the annular water supply pipe 34, and prevent the annular water supply pipe 34 from deforming during long-term operation.

[0026] like Figure 1 As shown. A circulation pump 4 is connected to the bottom of the spray tower 1, and the output end of the circulation pump 4 is connected to a circulation water supply pipe 5, which is connected to the annular water supply pipe 34. Each spray assembly 3 is equipped with a circulation pump 4 to circulate the water at the bottom of the spray tower 1 to save water.

Claims

1. A device for improving the effect of a yellow phosphorus spray, characterized in that: The spray assembly (3) is respectively set in the middle and top of the spray tower (1). The spray assembly (3) includes an annular water supply pipe (34) and a support pipe (35) evenly distributed on the annular water supply pipe (34). The support pipe (35) is detachably connected to an installation pipe (37). The installation pipe (37) is connected to a spray head (39). The spray head (39) is located inside the spray tower (1).

2. The device for improving the effect of spraying yellow phosphorus according to claim 1, characterized in that: The support pipe (35) is arranged vertically, and the top end of the support pipe (35) is connected to a right-angle connecting elbow (36) through a flange. The mounting pipe (37) is connected to the connecting elbow (36) through a flange. The movable end of the spray head (39) is arranged inclined downwards, and the bottom end of the spray head (39) is located above the bottom of the mounting pipe (37).

3. The device for improving the spray effect of yellow phosphorus according to claim 1, characterized in that: A sealing cover (38) is fixedly connected to the installation pipe (37). The outer diameter of the sealing cover (38) is larger than the opening diameter on the side wall of the spray tower (1) for the installation pipe (37) to be inserted. When the installation pipe (37) is connected to the support pipe (35), the sealing cover (38) fits against the spray tower (1).

4. The apparatus for improving the spray effect of yellow phosphorus according to claim 3, characterized in that: A sealing ring (381) is provided between the sealing cover (38) and the spray tower (1), and an installation groove for accommodating the sealing ring (381) is provided on the end wall of the sealing cover (38).

5. The apparatus for improving the spray effect of yellow phosphorus according to claim 1, wherein: Below the annular water supply pipe (34) is an annular support ring (31), which is fixed on the outer wall of the spray tower (1). A support rod (32) is provided on the top of the support ring (31), and the top of the support rod (32) is connected to the annular water supply pipe (34). The support rod (32) is distributed at equal angles around the axis of the support ring (31).

6. The apparatus for improving the spray effect of yellow phosphorus according to claim 5, characterized in that: The top end of the support rod (32) is fixedly connected to an arc-shaped support block (33), and the inner side wall of the support block (33) is in contact with the bottom of the annular water supply pipe (34).

7. The apparatus for improving the spray effect of yellow phosphorus according to claim 1, characterized in that: The bottom of the spray tower (1) is connected to a circulating pump (4), and the output end of the circulating pump (4) is connected to a circulating water supply pipe (5), which is connected to the annular water supply pipe (34) through the circulating water supply pipe (5).

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