Spray tower for industrial silicon submerged arc furnace

Abstract

The utility model discloses a spray tower for an industrial silicon submerged arc furnace, gas discharged by the submerged arc furnace can enter a tower body through a gas inlet pipe, the bottom of the tower body is communicated with a liquid discharge pipe, a plurality of gas phase distributors are sequentially arranged in the tower body from top to bottom, the gas entering the tower body can penetrate through the gas phase distributors to be uniformly distributed in the rising process, and the gas is uniformly distributed in the tower body. One side of the tower body is provided with a spraying branch pipe, one end of the spraying branch pipe is provided with a spraying disc positioned above the gas-phase distributor, the spraying header pipe is connected with a medicament storage tank, and spraying liquid can be uniformly sprayed out through the spraying disc after passing through the spraying branch pipe and is in full contact with gas which is uniformly distributed after passing through the gas-phase distributor, so that harmful gas and dust in the gas are removed; a supporting net plate is arranged between the adjacent gas phase distributor and spraying disc, a filler is arranged on the supporting net plate, the gas-liquid contact area and the contact effect can be increased through the arranged filler, the removal effect on harmful gas and dust is further improved, a gas outlet pipe is arranged at the top of the tower body, and treated gas can be discharged through the gas outlet pipe.

Description

Technical Field

[0001] This utility model relates to the field of submerged arc furnace application technology, and in particular to a spray tower for an industrial silicon submerged arc furnace. Background Technology

[0002] During the operation of industrial silicon submerged arc furnaces, large quantities of harmful gases and dust are typically generated. These harmful gases mainly include sulfur dioxide (SO2) and nitrogen oxides (NOx). Direct release of these gases into the atmosphere without treatment will cause serious environmental pollution. Furthermore, the high temperature of these gases can cause thermal pollution if released directly. The dust not only pollutes the environment but also poses a health hazard to workers. Therefore, spray towers are necessary during the operation of submerged arc furnaces. However, existing spray towers suffer from uneven distribution of liquid and gas phases, resulting in insufficient gas-liquid contact and consequently poor removal efficiency for harmful gases and dust. Utility Model Content

[0003] The purpose of this application is to provide a spray tower for industrial silicon submerged arc furnaces to solve the problem that existing spray towers have poor removal efficiency for harmful gases and dust due to insufficient gas-liquid contact caused by uneven distribution of liquid and gas phases inside.

[0004] To solve the above-mentioned technical problems, this application provides a spray tower for an industrial silicon submerged arc furnace, comprising:

[0005] The tower body has an air inlet pipe connected to one side of its lower part and a drain pipe connected to its bottom. Multiple gas phase distributors are arranged sequentially from top to bottom within the tower body. A spray branch pipe, corresponding to one of the gas phase distributors, extends into the tower body from one side. A spray plate is installed at one end of each spray branch pipe above the gas phase distributor. The other ends of all the spray branch pipes are connected to a common spray main pipe, which is connected to a reagent storage tank. A support mesh plate is installed between adjacent gas phase distributors and spray plates, and packing material is installed on the support mesh plate. An air outlet pipe is located at the top of the tower body.

[0006] In a preferred embodiment, a spray tower for an industrial silicon submerged arc furnace includes a gas phase distributor comprising a mounting plate fixed inside the tower body, the mounting plate having a plurality of vent holes, and a distribution pipe connected to each of the vent holes being fixed to the lower side of the mounting plate.

[0007] Further explanation is needed in the solution: a spray tower for an industrial silicon submerged arc furnace, wherein the distribution pipe is also connected to multiple inclined pipes, and each of the inclined pipes is evenly distributed on the outer periphery of the distribution pipe.

[0008] In a preferred embodiment, a spray tower for an industrial silicon submerged arc furnace is provided, wherein a pressure plate is also installed on the supporting mesh plate, and the packing is located between the supporting mesh plate and the pressure plate.

[0009] As a preferred embodiment, a spray tower for an industrial silicon submerged arc furnace is provided, wherein a temperature probe is also installed on the air inlet pipe.

[0010] As a preferred embodiment, a spray tower for an industrial silicon submerged arc furnace is provided with a heat insulation layer on the inner wall of the air inlet pipe.

[0011] Compared with the prior art, the present invention provides a spray tower for an industrial silicon submerged arc furnace, comprising a tower body, an inlet pipe connected to the lower side of the tower body, through which gas discharged from the submerged arc furnace can enter the tower body, a drain pipe connected to the bottom of the tower body, and multiple gas phase distributors arranged sequentially from top to bottom inside the tower body, allowing the gas entering the tower body to pass through the gas phase distributors and be evenly distributed during its ascent, and a spray branch pipe extending into the tower body corresponding to the gas phase distributor is provided on one side of the tower body, with a spray plate installed at one end of the spray branch pipe above the gas phase distributor, and the other end of each spray branch pipe... The system is connected to a main spray pipe, which is connected to a chemical storage tank. The spray liquid (chemical and / or water) can be sprayed evenly through the spray branch pipes and spray discs, making full contact with the gas that is evenly distributed after passing through the gas phase distributor, thus removing harmful gases and dust from the gas. A support mesh plate is installed between adjacent gas phase distributors and spray discs, and the support mesh plate is filled with packing material. The packing material increases the gas-liquid contact area, improves the contact effect between gas and liquid, and further improves the removal effect of harmful gases and dust. An exhaust pipe is installed at the top of the tower, through which the treated gas can be discharged. Attached Figure Description

[0012] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0013] Figure 1 This is a schematic diagram of a spray tower structure for an industrial silicon submerged arc furnace provided in an embodiment of this application;

[0014] Figure 2 This is a schematic diagram of a spray disc structure provided in an embodiment of this application;

[0015] In the diagram: 1. Tower body; 2. Inlet pipe; 3. Drain pipe; 4. Gas phase distributor; 5. Spray branch pipe; 6. Spray tray; 7. Spray main pipe; 8. Chemical storage tank; 80. Connecting pipe; 81. Control valve; 9. Support mesh plate; 10. Outlet pipe; 11. Mounting plate; 12. Vent hole; 13. Distribution pipe; 14. Inclined pipe; 15. Pressure plate; 16. Temperature probe; 17. Insulation layer. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0017] The core of this application is to provide Figure 1 The spray tower for industrial silicon submerged arc furnace provided in this application can solve the problem that existing spray towers have poor removal effects on harmful gases and dust due to insufficient gas-liquid contact caused by uneven distribution of liquid and gas phases inside.

[0018] Figure 1 This is a schematic diagram of a spray tower structure for an industrial silicon submerged arc furnace provided in an embodiment of this application. Figure 2 This is a schematic diagram of a spray disc structure provided in an embodiment of this application. See also: Figures 1 to 2 As shown.

[0019] Example 1

[0020] A spray tower for an industrial silicon submerged arc furnace includes a tower body 1. The shape and size of the tower body 1 can be determined according to actual conditions. An air inlet pipe 2 is connected to the lower side of the tower body 1. In use, the air inlet pipe 2 is connected to the air outlet of the submerged arc furnace. A drain pipe 3 is connected to the bottom of the tower body 1, through which the treated waste liquid can be discharged. Multiple gas phase distributors 4 are arranged sequentially from top to bottom inside the tower body 1. The gas phase distributors 4 can make the rising gas evenly distributed. A spray branch pipe 5 is arranged on one side of the tower body 1. The spray branch pipe 5 corresponds to the gas phase distributor 4 and one end extends into the tower body 1. A spray plate 6 is installed at one end of the spray branch pipe 5. After installation, the spray plate 6 is located above the gas phase distributor 4, and a gap is left between the spray plate 6 and the inner wall of the spray tower. There is no direct connection. Each spray branch pipe 5 is connected to a common spray main pipe 7 at its other end. A chemical storage tank 8 is connected to the spray main pipe 7, and the chemical storage tank 8 is connected to the spray main pipe 7 via a connecting pipe 80. A control valve 81 is installed on the connecting pipe 80. During use, the control valve 81 can be opened as needed to add the chemical from the chemical storage tank 8 into the spray main pipe 7. The chemical, along with the liquid in the spray main pipe 7, is sprayed out through the spray plate 6. The spray plate 6 ensures uniform liquid spraying. A support mesh plate 9 is installed between the adjacent gas phase distributor 4 and the spray plate 6. The support mesh plate 9 is filled with packing material. When the rising gas passes through the packing material, it can come into contact with more spray liquid in the packing material, increasing the gas-liquid contact area and thus improving the removal effect of harmful gases and dust. An exhaust pipe 10 is installed at the top of the tower body 1, through which the treated gas can be discharged.

[0021] Example 2

[0022] Based on Example 1, in order to improve the uniform distribution of gas in an industrial silicon submerged arc furnace spray tower, preferably, the gas phase distributor 4 includes a mounting plate 11 fixed inside the tower body 1. The mounting plate 11 is provided with a plurality of vent holes 12. A distribution pipe 13 communicating with each vent hole 12 is fixed on the lower side of the mounting plate 11. In use, the rising gas can pass through the gas phase distributor 4 through each distribution pipe 13 for uniform distribution.

[0023] Based on Example 2, a spray tower for an industrial silicon submerged arc furnace, in order to further improve the uniform distribution of gas, is connected to a plurality of inclined pipes 14 on the distribution pipe 13. Each inclined pipe 14 is evenly distributed on the outer periphery of the distribution pipe 13. The rising gas can enter the distribution pipe 13 after passing through each inclined pipe 14, and finally pass through the vent hole 12 and the gas phase distributor 4 for uniform distribution.

[0024] Based on Example 1, in order to prevent the packing material from being blown away by the rising airflow, a pressure plate 15 is preferably installed on the supporting mesh plate 9. The packing material is located between the supporting mesh plate 9 and the pressure plate 15, which is also in the shape of a mesh plate.

[0025] Based on Example 1, a spray tower for an industrial silicon submerged arc furnace is further equipped with a temperature probe 16 on the air inlet pipe 2 to detect the temperature of the gas discharged from the submerged arc furnace.

[0026] Based on Example 1, in order to improve the service life of the air inlet pipe 2, a spray tower for an industrial silicon submerged arc furnace is preferably provided with a heat insulation layer 17 on the inner side wall of the air inlet pipe 2.

[0027] This utility model provides a spray tower for an industrial silicon submerged arc furnace, comprising a tower body 1. An inlet pipe 2 is connected to the lower side of the tower body 1, allowing gas discharged from the submerged arc furnace to enter the tower body 1 via the inlet pipe 2. A drain pipe 3 is connected to the bottom of the tower body 1. Multiple gas phase distributors 4 are arranged sequentially from top to bottom inside the tower body 1. As the gas enters the tower body 1, it passes through the gas phase distributors 4 and is then evenly distributed. A spray branch pipe 5, corresponding to the gas phase distributor 4, extends into the tower body 1 from one side. A spray plate 6 is installed at one end of each spray branch pipe 5 above the gas phase distributor 4. The other ends of each spray branch pipe 5 are connected to a spray plate 6. The tower is connected to a spray main pipe 7, which is connected to a chemical storage tank 8. The spray liquid and / or water can be sprayed evenly through the spray branch pipes 5 and then through the spray plate 6, making full contact with the gas that is evenly distributed after passing through the gas phase distributor 4, thereby removing harmful gases and dust from the gas. A support mesh plate 9 is set between the adjacent gas phase distributor 4 and the spray plate 6. The support mesh plate 9 is filled with packing material, which can increase the gas-liquid contact area and improve the contact effect between the gas and the liquid, thereby further improving the removal effect of harmful gases and dust. An exhaust pipe 10 is set at the top of the tower body 1, through which the treated gas can be discharged.

[0028] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and incorporate common knowledge or customary techniques in the art disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0029] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A spray tower for an industrial silicon submerged arc furnace, characterized in that, include: The tower body (1) has an air inlet pipe (2) connected to one side of its lower part and a drain pipe (3) connected to the bottom of its bottom. Multiple gas phase distributors (4) are arranged sequentially from top to bottom inside the tower body (1). A spray branch pipe (5) corresponding to the gas phase distributor (4) is arranged on one side of the tower body (1) and extends into the tower body (1). One end of the spray branch pipe (5) is equipped with a spray plate (6) located above the gas phase distributor (4). The other end of each spray branch pipe (5) is connected to a spray main pipe (7). A reagent storage tank (8) is connected to the spray main pipe (7). A support mesh plate (9) is arranged between adjacent gas phase distributors (4) and spray plates (6). Packing material is arranged on the support mesh plate (9). An air outlet pipe (10) is arranged at the top of the tower body (1).

2. The spray tower for industrial silicon submerged arc furnace according to claim 1, characterized in that, The gas phase distributor (4) includes a mounting plate (11) fixed inside the tower body (1), the mounting plate (11) is provided with a plurality of ventilation holes (12), and a distribution pipe (13) connected to each ventilation hole (12) is fixed on the lower side of the mounting plate (11).

3. The spray tower for industrial silicon submerged arc furnace according to claim 2, characterized in that, The distribution pipe (13) is also connected to a plurality of inclined pipes (14), and each inclined pipe (14) is evenly distributed on the outer periphery of the distribution pipe (13).

4. The spray tower for an industrial silicon submerged arc furnace according to claim 1, characterized in that, A pressure plate (15) is also installed on the support mesh plate (9), and the filler is located between the support mesh plate (9) and the pressure plate (15).

5. The spray tower for an industrial silicon submerged arc furnace according to claim 1, characterized in that, A temperature probe (16) is also installed on the air intake pipe (2).

6. The spray tower for an industrial silicon submerged arc furnace according to claim 1, characterized in that, A heat insulation layer (17) is also provided on the inner wall of the air intake pipe (2).

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