Flue gas purifier

Abstract

The flue gas purifier comprises a purifying box, a supporting table, a solution box and a water guide pipe, an atomizing nozzle is fixedly installed on the lower side of the water guide pipe, an air inlet is fixedly installed at the lower left corner of the left side of the purifying box, an air outlet is fixedly installed at the upper right corner of the right side of the purifying box, and a clamping block is welded to the inner wall of the purifying box. And a filtering plate is clamped to the inner side of the clamping block, a ventilation plate is fixedly installed under the filtering plate, a first water leakage plate is fixedly installed under the ventilation plate, a second water leakage plate is fixedly installed under the first water leakage plate, and a third water leakage plate is fixedly installed under the second water leakage plate. According to the multi-layer filtering mechanism for the flue gas purifier, a solution is sprayed out through the atomization spray head, flue gas is in full contact with the solution, harmful gas is removed through reaction, then the flue gas passes through the filtering plate, the flue gas is purified through the multi-layer filtering mechanism for the flue gas purifier, the purifying effect is good, meanwhile, the filtering plate is easy to replace, the replacing steps are simple, and the replacing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification, in particular to a flue gas purifier. Background Art

[0002] Polysilicon is a form of elemental silicon. When molten elemental silicon solidifies under supercooling conditions, silicon atoms are arranged in the form of diamond lattices to form many crystal nuclei. If these crystal nuclei grow into grains with different crystal plane orientations, these grains will combine and crystallize into polysilicon. With the rapid development of the solar photovoltaic industry, the demand for polysilicon will continue to grow. The flue gas generated in the production of polysilicon is mostly flammable, explosive, toxic and harmful substances, mainly from the distillation process, reduction process, tail gas recovery process (CDI), hydrogenation process and synthesis process. The flue gas generated in the production process of polysilicon mainly contains chlorosilane and hydrogen chloride gas in the flue gas. If the flue gas is directly discharged, it will cause great pollution to the environment. Therefore, a flue gas purification device is needed to purify the directly discharged flue gas.

[0003] The existing purification devices have poor purification effects on the flue gas generated in the polysilicon production process, and the filter plates used for purification are not easy to replace, the replacement steps are cumbersome, and the replacement efficiency is low. Therefore, we propose a new type of flue gas purifier. Utility Model Content

[0004] The utility model provides a flue gas purifier to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flue gas purifier comprises a purification box, a support platform is welded to the middle part of the left side of the purification box, a solution box is arranged on the upper side of the support platform, a water guide pipe is fixedly installed on the right side of the solution box, an atomizing nozzle is fixedly installed on the lower side of the water guide pipe, an air inlet is fixedly installed at the lower left corner of the left side of the purification box, an air outlet is fixedly installed at the upper right corner of the right side of the purification box, a clamping block is welded on the inner wall of the purification box, a filter plate is clamped on the inner side of the clamping block, a ventilation plate is fixedly installed directly below the filter plate, a first water leakage plate is fixedly installed directly below the ventilation plate, a second water leakage plate is fixedly installed directly below the first water leakage plate, a third water leakage plate is fixedly installed directly below the second water leakage plate, a wastewater collection box is slidably connected directly below the third water leakage plate, and a first box door and a second box door are sequentially arranged on the front side of the purification box from top to bottom.

[0007] As a further improvement of the technical solution: a water pump is arranged inside the solution tank, wherein the output port of the water pump is fixedly connected to the left end of the water pipe.

[0008] As a further improvement of the technical solution: evenly distributed fixing parts are fixedly installed on the outer side of the water conduit, wherein the fixing parts are fixedly installed on the bottom of the ventilation plate.

[0009] As a further improvement of the technical solution: the ventilation plate, the first water leakage plate, the second water leakage plate and the third water leakage plate are all fixedly installed inside the purification box.

[0010] As a further improvement of the technical solution: a switch knob is provided on the upper side of the air inlet and the air outlet.

[0011] As a further improvement of the technical solution: the first door and the second door are both connected to the purification box by hinges, wherein handles are welded on the right sides of the front sides of the first door and the second door.

[0012] As a further improvement of the technical solution: evenly distributed water leakage holes are provided inside the first water leakage plate, the second water leakage plate and the third water leakage plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: when treating polysilicon flue gas, Ca(OH)2 solution will be sprayed from the atomizing nozzle into the purification box, and the flue gas will pass through the third water leakage plate, the second water leakage plate and the first water leakage plate from bottom to top in sequence, so that the flue gas is fully in contact with the Ca(OH)2 solution, so that the chlorosilane and hydrogen chloride gas in the flue gas will be absorbed by the Ca(OH)2 solution, and the flue gas will then pass through the filter plate, and the filter plate will absorb the harmful gases in the flue gas again. The flue gas purifier utilizes a multi-layer filtering mechanism to purify the flue gas with good purification effect. When the filter plate reaches the upper limit of absorption, the first box door can be opened, the old filter plate can be taken out, and the new filter plate can be placed in the card block to complete the replacement of the filter plate. The filter plate is easy to replace, the replacement steps are simple, and the replacement efficiency is high.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the first box door structure of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the first water leakage plate of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Purification box; 2. Support table; 3. Solution box; 4. Water guide pipe; 5. Atomizing nozzle; 6. Air inlet; 7. Air outlet; 8. Block; 9. Filter plate; 10. Ventilation plate; 11. First water leakage plate; 12. Second water leakage plate; 13. Third water leakage plate; 14. Wastewater collection box; 15. First box door; 16. Second box door. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figures 1 to 3In the embodiment of the utility model, a flue gas purifier comprises a purification box 1, a support platform 2 is welded to the middle part of the left side of the purification box 1, a solution box 3 is arranged on the upper side of the support platform 2, a water guide pipe 4 is fixedly installed on the right side of the solution box 3, an atomizing nozzle 5 is fixedly installed on the lower side of the water guide pipe 4, an air inlet 6 is fixedly installed at the lower left corner of the left side of the purification box 1, an air outlet 7 is fixedly installed at the upper right corner of the right side of the purification box 1, a clamping block 8 is welded to the inner wall of the purification box 1, a filter plate 9 is clamped on the inner side of the clamping block 8, a ventilation plate 10 is fixedly installed directly below the filter plate 9, a first water leakage plate 11 is fixedly installed directly below the ventilation plate 10, a second water leakage plate 12 is fixedly installed directly below the first water leakage plate 11, a third water leakage plate 13 is fixedly installed directly below the second water leakage plate 12, a wastewater collection box 14 is slidably connected directly below the third water leakage plate 13, and a first box door 15 and a second box door 16 are sequentially arranged on the front of the purification box 1 from top to bottom.

[0025] See also Figure 1-2 A water pump is arranged inside the solution tank 3, wherein the output port of the water pump is fixedly connected to the left end of the water pipe 4, and the water pump can conveniently pump the Ca(OH)2 solution in the solution tank 3 into the purification box 1 to purify the flue gas.

[0026] See also Figure 1-2 The outer side of the water pipe 4 is fixedly installed with evenly distributed fixing parts, wherein the fixing parts are fixedly installed at the bottom of the ventilation plate 10. The water pipe 4 is fixed by the fixing parts so that the water pipe 4 is firmly fixed at the bottom of the ventilation plate 10.

[0027] See also Figure 1-2 The ventilation plate 10, the first water-leaking plate 11, the second water-leaking plate 12 and the third water-leaking plate 13 are all fixedly installed inside the purification box 1. The first water-leaking plate 11, the second water-leaking plate 12 and the third water-leaking plate 13 can make the flue gas fully contact with the Ca(OH)2 solution, so that the harmful gases in the flue gas can be fully reacted.

[0028] See also Figure 1-2 A switch knob is provided on the upper side of the air inlet 6 and the air outlet 7, and the on and off of the air inlet 6 and the air outlet 7 can be controlled by the switch knob.

[0029] See also Figure 2 The first door 15 and the second door 16 are both connected to the purification box 1 by hinges, wherein handles are welded on the right sides of the front of the first door 15 and the second door 16. The hinges can easily meet the needs of frequent opening and closing of the first door 15 and the second door 16 in daily life. The handles can be used as force points to quickly open the first door 15 and the second door 16.

[0030] See also Figure 1 and Figure 3The first water leakage plate 11, the second water leakage plate 12 and the third water leakage plate 13 are provided with evenly distributed water leakage holes, through which the Ca(OH)2 solution can overflow and contact with the flue gas.

[0031] The working principle of the utility model is as follows: when the equipment is used to purify the flue gas generated in the production process of polysilicon, the flue gas generated in the production of polysilicon is first introduced into the air inlet 6, and the flue gas enters the purification box 1. At this time, the water pump is started to extract the Ca(OH)2 solution in the solution tank 3, and the Ca(OH)2 solution is transported by the water pipe 4. The Ca(OH)2 solution will be sprayed from the atomizing nozzle 5 to the purification box 1, and the flue gas will move from bottom to top, and pass through the third water leakage plate 13, the second water leakage plate 12 and the first water leakage plate 11 in turn. After multiple filtration and absorption, the chlorosilane and hydrogen chloride gas in the flue gas will be absorbed by the Ca(OH)2 solution. After the flue gas reacts with the Ca(OH)2 solution, the Ca(OH)2 solution will be absorbed by the flue gas. The H)2 solution will flow into the wastewater collection box 14 for unified collection. When the wastewater collection box 14 is full, the second box door 15 can be opened to take out the wastewater collection box 14 to treat the wastewater. The flue gas will move upward from the ventilation plate 10 and pass through the filter plate 9 again. The filter plate 9 will absorb the harmful gases in the flue gas again. Finally, the treated flue gas is discharged from the air outlet 7. The flue gas purifier uses a multi-layer filtering mechanism to purify the flue gas with good purification effect. When the filter plate 9 reaches the upper limit of absorption, the first box door 15 can be opened to take out the old filter plate 9 and then place the new filter plate 9 in the card block 8 to complete the replacement of the filter plate 9. The filter plate 9 is easy to replace, the replacement steps are simple, and the replacement efficiency is high.

[0032] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A flue gas purifier, characterized in that: The invention comprises a purification box (1), a support platform (2) is welded to the middle of the left side of the purification box (1), a solution box (3) is arranged on the upper side of the support platform (2), a water pipe (4) is fixedly installed on the right side of the solution box (3), an atomizing nozzle (5) is fixedly installed on the lower side of the water pipe (4), an air inlet (6) is fixedly installed at the lower left corner of the left side of the purification box (1), an air outlet (7) is fixedly installed at the upper right corner of the right side of the purification box (1), a clamping block (8) is welded to the inner wall of the purification box (1), and the inner side of the clamping block (8) is clamped with a A filter plate (9), a ventilation plate (10) is fixedly installed directly below the filter plate (9), a first water leakage plate (11) is fixedly installed directly below the ventilation plate (10), a second water leakage plate (12) is fixedly installed directly below the first water leakage plate (11), a third water leakage plate (13) is fixedly installed directly below the second water leakage plate (12), a wastewater collection box (14) is slidably connected directly below the third water leakage plate (13), and a first box door (15) and a second box door (16) are sequentially arranged on the front of the purification box (1) from top to bottom.

2. A flue gas purifier according to claim 1, characterized in that: A water pump is arranged inside the solution tank (3), wherein the output port of the water pump is fixedly connected to the left end of the water pipe (4).

3. A flue gas purifier according to claim 1, characterized in that: Evenly distributed fixing parts are fixedly mounted on the outer side of the water conduit (4), wherein the fixing parts are fixedly mounted on the bottom of the ventilation plate (10).

4. A flue gas purifier according to claim 1, characterized in that: The ventilation plate (10), the first water leakage plate (11), the second water leakage plate (12) and the third water leakage plate (13) are all fixedly installed inside the purification box (1).

5. A flue gas purifier according to claim 1, characterized in that: The upper sides of the air inlet (6) and the air outlet (7) are both provided with switch knobs.

6. A flue gas purifier according to claim 1, characterized in that: The first door (15) and the second door (16) are both connected to the purification box (1) by means of hinges, wherein a handle is welded on the right side of the front of the first door (15) and the second door (16).

7. A flue gas purifier according to claim 1, characterized in that: The first water leakage plate (11), the second water leakage plate (12) and the third water leakage plate (13) are provided with evenly distributed water leakage holes inside.

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