Flue gas purification system for silicon submerged arc furnace

Abstract

The utility model relates to the technical field of silicon submerged arc furnace flue gas treatment, and particularly discloses a silicon submerged arc furnace flue gas purification system which comprises a treatment mechanism, and a flue gas inlet mechanism and a filtering mechanism which are respectively assembled in the treatment mechanism, the treatment mechanism comprises a treatment tank, a liquid storage cavity, a smoke inlet cavity and a filtering cavity are formed in the treatment tank, the liquid storage cavity communicates with the smoke inlet cavity, the liquid storage cavity communicates with the filtering cavity, and a water spraying head is installed in the smoke inlet cavity; the smoke inlet mechanism comprises a smoke conveying pipe inserted into the smoke inlet cavity, the water spraying head extends into the smoke conveying pipe, a movable groove is formed in the inner wall of the smoke conveying pipe, a movable plate is slidably installed in the movable groove, and tooth cones are evenly distributed on the surface of the movable plate. According to the utility model, the spraying dead angle area can be effectively covered, so that the spraying liquid can be fully contacted and mixed with the flue gas, and the spraying purification effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of silicon smelting furnace flue gas treatment, specifically relates to a silicon smelting furnace flue gas purification system. BACKGROUND

[0002] The silicon smelting furnace is the key equipment in the silicon smelting industry, and is mainly used for extracting silicon metal from silicon ore through high-temperature reduction reaction. In the production process, the silicon smelting furnace will generate a large amount of flue gas containing a large amount of silicon oxide, dust, sulfur dioxide and other harmful gases. If these flue gases are directly discharged into the atmosphere without effective treatment, not only will it cause serious pollution to the environment, but also will affect the quality of life of the surrounding residents, and even pose a serious threat to the health of the operators. Therefore, it is usually necessary to perform purification operation on the flue gas generated by the silicon smelting furnace.

[0003] However, the current flue gas purification system usually needs to use the spraying method to spray the chemical agent on the flue gas in order to eliminate the harmful substances in the flue gas. However, the traditional spraying method usually sprays in a fixed direction, which can easily cause the mixing of the spraying liquid and the flue gas to be uneven, thereby reducing the spraying purification effect. At the same time, since the flue gas is in contact with the inner wall of the treatment equipment for a long time, impurities can easily adhere to the inner wall, which can cause difficulty in cleaning. Therefore, the present applicant proposes a silicon smelting furnace flue gas purification system to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a silicon smelting furnace flue gas purification system, which can make the spraying liquid scatter in various directions during spraying, effectively cover the spraying dead angle area, and make the spraying liquid fully contact and mix with the flue gas, thereby effectively improving the spraying purification effect. At the same time, through the detachable smoke inlet mechanism, the impurities adhered to the inner wall can be easily cleaned, thereby bringing more convenience to the use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A silicon smelting furnace flue gas purification system, comprising:

[0007] A treatment mechanism, a smoke inlet mechanism and a filter mechanism respectively assembled in the treatment mechanism;

[0008] The treatment mechanism comprises a treatment tank, and the treatment tank is internally provided with a liquid storage cavity, a smoke inlet cavity and a filter cavity, which are in communication with each other. A water spraying head is installed in the smoke inlet cavity.

[0009] The smoke inlet mechanism comprises a smoke feeding pipe inserted into the smoke inlet cavity, the water spraying head extends to the inside of the smoke feeding pipe, the inner wall of the smoke feeding pipe is provided with a movable slot, and the inside of the movable slot is slidably provided with a movable plate, and the surface of the movable plate is uniformly provided with toothed cones.

[0010] The filtering mechanism comprises a filter box inserted into the filtering cavity.

[0011] Preferably, one side of the treatment tank is fixedly provided with a liquid injection pipe in communication with the liquid storage cavity and a liquid discharge pipe, and the liquid discharge pipe is located at the bottom of the liquid injection pipe.

[0012] Preferably, one side of the treatment tank is fixedly provided with a water pump, one side of the water pump is provided with a liquid suction pipe extending into the liquid storage cavity, and a conveying pipe is fixedly arranged between the top of the water pump and the water spraying head.

[0013] Preferably, the top of the treatment tank is fixedly provided with an exhaust pipe in communication with the filtering cavity, and the inside of the filtering cavity is fixedly provided with a grid for supporting the filter box.

[0014] Preferably, the top of the smoke feeding pipe is fixedly provided with a smoke inlet pipe, and the smoke feeding pipe and the treatment tank are fixed through a fixed knob.

[0015] Preferably, a vibration spring is fixedly arranged between the movable slot and the movable plate, and the movable plate and the water spraying head are corresponding to each other.

[0016] Preferably, the bottom of the filter box is fixedly provided with a mesh plate, and one side of the filter box is fixedly provided with a handle.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] (1) The present utility model is provided with a smoke inlet mechanism, which can spray the spraying liquid to all directions through the water spraying head, can make the movable plate vibrate by the impact of the water flow, can make the water splashes irregularly scatter through the toothed cones, can effectively cover the dead angle area of the spraying, can make the spraying liquid fully contact and mix with the flue gas, effectively improves the spraying purification effect, and through the detachable smoke inlet mechanism, the impurities adhered to the inner wall of the smoke feeding pipe can be conveniently cleaned, thereby bringing more convenience to the use.

[0019] (2) The present utility model is provided with a filtering mechanism, which can place filter fillers in the filter box, can conveniently filter the flue gas for multiple times through the multiple filter boxes, can conveniently further purify the harmful substances in the flue gas, and the filter box can be conveniently detached and installed, so that different filter fillers can be quickly replaced according to the purification requirements, thereby effectively improving the use effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the front view structure schematic drawing of the utility model;

[0021] Figure 2 It is the rear view structure schematic drawing of the utility model;

[0022] Figure 3 It is the inside structure schematic drawing of the processing mechanism of the utility model;

[0023] Figure 4 It is the processing tank section view structure schematic drawing of the utility model;

[0024] Figure 5 It is the smoke inlet mechanism section view structure schematic drawing of the utility model;

[0025] Figure 6 It is the filter mechanism structure schematic drawing of the utility model;

[0026] In the drawing: 1, processing mechanism;11, processing tank;12, liquid injection pipe;13, liquid discharge pipe;14, liquid storage cavity;15, water pump;16, liquid suction pipe;17, conveying pipe;18, smoke inlet cavity;19, filter cavity;110, exhaust pipe;111, grating;112, water jet head;2, filter mechanism;21, filter box;22, screen plate;23, handle;3, smoke inlet mechanism;31, smoke conveying pipe;32, movable groove;33, movable plate;34, vibration spring;35, tooth cone;36, fixed knob;37, smoke inlet pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] In the description of the utility model, it should be noted that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are the directions or position relations shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the utility model, need explanation, unless another explicit provision and limitation, term " install " " set up " " connect " etc., should do broad sense understanding, for example " connect " can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal communication. For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0030] Embodiment one:

[0031] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 And Figure 6 As shown, a kind of silicon smelting furnace flue gas purification system, comprising:

[0032] processing mechanism 1 and respectively equipped in processing mechanism 1 inside and filter mechanism 2 and smoke mechanism 3;

[0033] Processing mechanism 1 includes processing tank 11, the inside of processing tank 11 is respectively provided with liquid storage cavity 14, smoke cavity 18 and filter cavity 19, liquid storage cavity 14 and smoke cavity 18 and filter cavity 19 are communicated with each other, the inside of smoke cavity 18 is installed with water jet head 112;

[0034] Smoke mechanism 3 includes the smoke pipe 31 inserted in smoke cavity 18, water jet head 112 extends to the inside of smoke pipe 31, the inner wall of smoke pipe 31 is provided with movable slot 32, movable slot 32 is slidably installed with movable plate 33, the surface of movable plate 33 is evenly distributed with tooth cone 35;

[0035] Filter mechanism 2 includes filter box 21 inserted in filter cavity 19.

[0036] From the above, by in the process of using, the flue gas generated by silicon smelting furnace is introduced into the smoke pipe 31, can make flue gas can be introduced from top to bottom, by the spray liquid for storing purified flue gas in liquid storage cavity 14, can conveniently extract spray liquid and convey to water jet head 112, utilize water jet head 112 can spray spray liquid in the smoke pipe 31 to all directions, can be sprayed and purified operation to flue gas;

[0037] The impact force generated when the spray liquid is sprayed is used to impact the movable plate 33. When the movable plate 33 is impacted, it slides into the movable groove 32. Through continuous impact, the movable plate 33 can produce a vibration effect, and the tooth cone 35 can be synchronized to vibrate. This can facilitate the reflection of the contacted spray liquid, allowing the spray liquid to have a random scattering effect, increasing the spraying range, effectively covering the dead angle area of the spray, allowing the spray liquid to fully contact and mix with the flue gas, effectively improving the spray purification effect. The smoke conveying pipe 31 can be pulled upwards to facilitate cleaning of the impurities adhering to the inner wall of the smoke conveying pipe 31 after use, providing more convenience for use.

[0038] The flue gas purified by the spray liquid can continue to flow downward into the liquid storage cavity 14. The spray liquid in the liquid storage cavity 14 blocks the flue gas, allowing it to flow from bottom to top through the liquid storage cavity 14 into the filter cavity 19. By placing the filter filler in the filter box 21, the flue gas can be filtered when it flows upward through the filter box 21, facilitating further purification of harmful substances in the flue gas. By pulling the filter box 21 to the right, the filter box 21 can be easily disassembled, allowing quick replacement of different filter fillers according to purification needs, effectively improving the use effect.

[0039] By Figure 2 As can be seen, the treatment tank 11 has an injection pipe 12 and a drainage pipe 13 fixedly installed on one side thereof, which are in communication with the liquid storage cavity 14, and the drainage pipe 13 is located at the bottom of the injection pipe 12.

[0040] As can be seen, the injection pipe 12 can be used to easily introduce the spray liquid into the liquid storage cavity 14 for storage, and the drainage pipe 13 can be used to easily discharge the used spray liquid from the liquid storage cavity 14 for replacement.

[0041] Specifically, as shown in Figure 4 The treatment tank 11 has a water pump 15 fixedly installed on one side thereof, the water pump 15 has a liquid suction pipe 16 extending into the liquid storage cavity 14 on one side thereof, and the water pump 15 has a delivery pipe 17 fixedly installed between the top thereof and the water spraying head 112.

[0042] As can be seen, the water pump 15 can be used to extract the spray liquid through the liquid suction pipe 16, and the delivery pipe 17 can be used to deliver the spray liquid to the water spraying head 112 for spraying, allowing the sprayed spray liquid to flow back into the liquid storage cavity 14, facilitating the circulation of the spray liquid.

[0043] Specifically, as shown in Figure 3 and Figure 4As shown, the top of the treatment tank 11 is fixedly installed with an exhaust pipe 110 communicated with the filter cavity 19, and the inside of the filter cavity 19 is fixedly installed with a grid 111 for supporting the filter box 21.

[0044] As can be seen, after the flue gas is filtered and purified through the filter box 21, the purified flue gas can be guided out through the exhaust pipe 110, and the grid 111 can conveniently support the filter box 21 without affecting the flow effect of the flue gas.

[0045] Embodiment two:

[0046] Reference Figure 3 And Figure 5 As shown, the top of the smoke feeding pipe 31 is fixedly installed with a smoke inlet pipe 37, and the smoke feeding pipe 31 and the treatment tank 11 are fixed through a fixed knob 36.

[0047] As can be seen, the smoke inlet pipe 37 can conveniently guide the flue gas into the smoke feeding pipe 31 for spray purification operation, the fixed knob 36 can be tightened to conveniently seal and fix the smoke feeding pipe 31 and the treatment tank 11, avoiding loosening of the smoke feeding pipe 31, and the fixed knob 36 can be loosened to conveniently pull out the smoke feeding pipe 31 upward from the smoke inlet cavity 18 for cleaning operation.

[0048] Reference Figure 5 As shown, the movable groove 32 and the movable plate 33 are fixedly installed with a vibration spring 34, and the movable plate 33 and the water spray head 112 correspond to each other.

[0049] As can be seen, after the movable plate 33 is impacted by the water flow, the vibration spring 34 can be extruded, and the elastic effect of the vibration spring 34 can make the movable plate 33 vibrate left and right.

[0050] Reference Figure 6 As shown, the bottom of the filter box 21 is fixedly installed with a mesh plate 22, and one side of the filter box 21 is fixedly installed with a handle 23.

[0051] As can be seen, the mesh plate 22 can support the filter filler in the filter box 21 without affecting the flow of flue gas into the filter box 21 for filtering operation, and the handle 23 can be used to conveniently pull out the filter box 21 from the filter cavity 19 for replacement operation of the filter filler.

[0052] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A system for cleaning off-gas of a silicon submerged arc furnace, characterized in that, Include: Processing mechanism (1) and respectively equipped with the processing mechanism (1) inside the smoke mechanism (3) and filter mechanism (2); The processing mechanism (1) includes a processing tank (11), the inner part of the processing tank (11) is respectively provided with a liquid storage cavity (14), a smoke cavity (18) and a filter cavity (19), the liquid storage cavity (14) and the smoke cavity (18) and the filter cavity (19) are communicated with each other, the inside of the smoke cavity (18) is provided with a water jet head (112); The smoke mechanism (3) includes a smoke pipe (31) inserted into the smoke cavity (18), the water jet head (112) extends into the inside of the smoke pipe (31), the inner wall of the smoke pipe (31) is provided with a movable slot (32), the inside of the movable slot (32) is slidably provided with a movable plate (33), the surface of the movable plate (33) is uniformly distributed with a tooth cone (35); The filter mechanism (2) includes a filter box (21) inserted into the filter cavity (19).

2. A system for cleaning the flue gas of a silicon smelting furnace according to claim 1, characterized in that: One side of the processing tank (11) is respectively fixedly provided with a liquid injection pipe (12) and a liquid discharge pipe (13) communicated with the liquid storage cavity (14), and the liquid discharge pipe (13) is located at the bottom of the liquid injection pipe (12).

3. A system for cleaning the flue gas of a silicon submerged arc furnace according to claim 1, characterized in that: One side of the processing tank (11) is fixedly provided with a water pump (15), one side of the water pump (15) is communicated with a liquid suction pipe (16) extending into the liquid storage cavity (14), and the top of the water pump (15) and the water jet head (112) are fixedly provided with a conveying pipe (17).

4. A system for cleaning the flue gas of a silicon smelting furnace according to claim 1, characterized in that: The top of the processing tank (11) is fixedly provided with an exhaust pipe (110) communicated with the filter cavity (19), and the inside of the filter cavity (19) is fixedly provided with a grid (111) for supporting the filter box (21).

5. A system for cleaning the flue gas of a silicon furnace according to claim 1, characterized in that: The top of the smoke pipe (31) is fixedly provided with a smoke inlet pipe (37), and the smoke pipe (31) and the processing tank (11) are fixed by a fixed knob (36).

6. A system for cleaning the flue gas of a silicon furnace according to claim 1, characterized in that: The movable slot (32) and the movable plate (33) are fixedly provided with a vibration spring (34), and the movable plate (33) and the water jet head (112) are correspondingly arranged.

7. A system for cleaning the flue gas of a silicon submerged arc furnace according to claim 1, characterized in that: The bottom of the filter box (21) is fixedly provided with a mesh plate (22), and one side of the filter box (21) is fixedly provided with a handle (23).

Images