Smelting furnace capable of purifying flue gas

Abstract

The smelting furnace capable of purifying the flue gas comprises a furnace body, bases are arranged at the four corners of the lower end of the furnace body, the bases are fixedly connected with the furnace body, the front end of the furnace body is of a detachable structure, and a containing cylinder is fixedly arranged in the furnace body; the purification pipe is arranged in the middle of the upper end of the furnace body, a sliding groove is formed in the upper portion of the interior of the purification pipe, a mounting plate is arranged in the sliding groove, and the mounting plate and the sliding groove are in sliding limiting; the acid purification layer is arranged on the lower portion of the interior of the mounting plate, the acid purification layer is fixedly connected with the inner wall of the mounting plate, and an alkaline purification layer is fixedly arranged on the upper portion of the interior of the mounting plate; the filter screens are arranged in the upper end and the lower end of the mounting plate and fixedly connected with the mounting plate, and the problems that flue gas purification is not comprehensive enough, and a purification structure is prone to being damaged by high-temperature flue gas are solved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting furnaces, in particular to a smelting furnace capable of purifying flue gas. Background Art

[0002] A smelting furnace refers to equipment that melts metal ingots and some scrap metals and adds necessary alloy components, and then smelts them into the required alloys through operations such as slagging and refining. According to the heating energy source, smelting furnaces can be divided into direct heating and indirect heating. Continuous furnaces are suitable for producing products with a small variety and large batches, while periodic furnaces are suitable for producing products with a large variety and specifications. The atmosphere in the non-protective gas furnace is air or the combustion atmosphere of the fuel itself. It is mostly used for products that can form a dense protective layer on the surface of the charge at high temperature to prevent severe oxidation at high temperature. The purified flue gas structure is an important part of the smelting furnace.

[0003] For example, the Chinese patent "A Smelting Furnace Flue Gas Wet Electrostatic Precipitator Purification System" with announcement number CN211936194U includes a connecting tube, an air outlet is opened on the top of the connecting tube, a rubber ring is bonded to the outer side of the air outlet two centimeters outward, a threaded ring is sleeved on the inner side of the rubber ring, a cover is rotatably connected to the outer side of the threaded ring, a sleeve is clamped inside the cover, the inner wall of the connecting tube is electrically connected to the cathode, a cylinder is welded to the bottom of the connecting tube, a clamping plate is clamped on the inner wall of the cylinder, a vertical rod is clamped on the top of the clamping plate, and the outer side of the vertical rod is electrically connected to the cathode. An anode tube is connected, a rotating motor is installed at the bottom of the clamping plate, the output end of the rotating motor is rotatably connected to a rotating shaft, a ring is clamped on the outside of the rotating shaft, a nozzle is clamped on the outside of the ring, a baffle is clamped on the bottom of the rotating shaft, a filter is clamped just below the baffle, an air inlet is opened just below the filter, the inner wall of the air inlet is rotatably connected to a staple, a groove is opened on the side of the staple extending outward by five centimeters, an insulating device is installed on one side of the cylinder, a casing is sleeved on the other side of the cylinder, a booster pump is installed inside the casing, and a connecting pipe is clamped on the side of the booster pump.

[0004] Although the above-mentioned prior art can purify the flue gas of the smelting furnace, in actual use, on the one hand, the flue gas purification is not comprehensive enough. When the flue gas purification operation is performed, certain acid and alkali gases contained in the flue gas will be directly discharged from the smelting furnace, causing the acid and alkali gases to seriously deteriorate the air quality, thereby affecting the atmospheric environment. On the other hand, high-temperature flue gas can easily damage the purification structure. When the high-temperature flue gas is purified after the flue gas is generated, the high-temperature flue gas will directly pass through the purification structure, causing the high-temperature flue gas to accelerate the aging of the purification structure, thereby shortening the service life of the purification structure. Therefore, it does not meet the existing needs. In this regard, we propose a smelting furnace that can purify flue gas. Utility Model Content

[0005] The purpose of the utility model is to provide a smelting furnace capable of purifying flue gas, so as to solve the problems that the flue gas purification proposed in the above-mentioned background technology is not comprehensive enough, when the flue gas purification operation is performed, certain acid and alkali gases contained in the flue gas will be directly discharged from the smelting furnace, and the acid and alkali gases will seriously reduce the air quality, and the high-temperature flue gas will easily damage the purification structure. When the high-temperature flue gas is purified after the flue gas is generated, the high-temperature flue gas will directly pass through the purification structure, and the high-temperature flue gas will accelerate the aging of the purification structure.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a smelting furnace capable of purifying flue gas, comprising a furnace body, bases are arranged at the four corners of the lower end of the furnace body, and the bases are fixedly connected to the furnace body, the front end of the furnace body is a detachable structure, and a containing cylinder is fixedly arranged inside the furnace body; and further comprising:

[0007] A purification pipe is arranged at the middle position of the upper end of the furnace body, a slide groove is arranged above the inside of the purification pipe, a mounting plate is arranged inside the slide groove, and the mounting plate and the slide groove are slidably limited;

[0008] An acidic purification layer is arranged below the interior of the mounting plate, and the acidic purification layer is fixedly connected to the inner wall of the mounting plate, and an alkaline purification layer is fixedly arranged above the interior of the mounting plate;

[0009] The filter screen is arranged inside the upper and lower ends of the mounting plate, and the filter screen is fixedly connected to the mounting plate.

[0010] Preferably, a water tank is fixedly provided on one side of the upper end of the furnace body, a water injection pipe is provided on the upper end of the water tank, a water pump is fixedly provided on the upper end of the furnace body close to the inner side of the water tank, and one end of the water pump is connected to the water tank through a water pipe.

[0011] Preferably, seven cooling pipes are arranged below the interior of the purification pipe, and both ends of the cooling pipes extend to the outside of the purification pipe, and water distribution pipes are fixedly arranged on both sides of the cooling pipe located outside the purification pipe, a water inlet pipe is fixedly arranged on one side of the water distribution pipe on one side, and the water inlet pipe is fixedly connected to the other end of the water pump, and a water outlet pipe is fixedly arranged on one side of the water distribution pipe on the other side, and the water outlet pipe is connected to the water tank through a pipe.

[0012] Preferably, a telescopic tube is provided at the upper end of the purification tube, and the telescopic tube is fixedly connected to the purification tube.

[0013] Preferably, a separation layer is provided between the alkaline purification layer and the acidic purification layer.

[0014] Preferably, slots are provided at upper and lower parts inside one side of the purification tube, bolts are provided at upper and lower parts of one side of the mounting plate, and the other ends of the bolts extend into the slots.

[0015] Preferably, a plurality of pores are arranged inside the alkaline purification layer, the acidic purification layer and the separation layer, and the pores are equidistantly distributed.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model can purify acidic and alkaline waste gases in flue gas through an alkaline purification layer and an acidic purification layer. When the smelting furnace is working, the high temperature inside it will cause the flue gas to evaporate upward. At this time, the flue gas passes through the filter on the mounting plate to filter particles in the flue gas. When the filtered flue gas first enters the acidic purification layer and the alkaline gas in the flue gas is purified through the acid-base neutralization reaction, and then the acidic gas in the flue gas is purified through the alkaline purification layer. At the same time, the pores arranged inside the acidic purification layer and the alkaline purification layer can increase the contact area between the flue gas and the acidic purification layer and the alkaline purification layer, thereby improving the flue gas purification rate and making the flue gas purification more sufficient.

[0018] 2. The utility model can cool the flue gas through the cooling pipe and the water pump. When the smelting furnace is working, the high temperature inside it will make the flue gas evaporate upward. First, turn on the water pump to draw cooling water from the water tank. At this time, the cooling water enters the cooling pipes at different positions through the water distribution pipe on one side, so that the cooling pipes are filled with cooling water. The flowing cooling water enters the water outlet pipe through the water distribution pipe on the other side, and the cooling water is transported back to the water tank through the water outlet pipe. At this time, the flue gas generated contacts the cooling pipe, and the high-temperature flue gas absorbs heat by the low-temperature cooling water. At the same time, the flue gas that has completed cooling continues to move upward, avoiding the high-temperature flue gas from directly contacting the mounting plate, thereby preventing the high temperature from accelerating the aging of the mounting plate.

[0019] 3. The utility model is provided with a telescopic tube, so that the exhaust position of the smoke can be freely moved. When the smoke is discharged, the telescopic tube can be pulled to extend the telescopic tube. When the appropriate position is reached, the opening of the telescopic tube is placed in a ventilated place. At this time, the purified smoke is directly discharged through the telescopic tube, avoiding direct contact with the operator during smoke discharge, thereby ensuring the health of the operator to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the internal structure of the utility model;

[0021] Figure 2 It is a side view of the internal structure of the utility model;

[0022] Figure 3 It is a partial enlarged view of the cooling structure of the utility model;

[0023] Figure 4 For the utility model Figure 1 A partial enlarged view of area A.

[0024] In the figure: 1. furnace body; 2. base; 3. container; 4. purification pipe; 5. water tank; 6. water pump; 7. water inlet pipe; 8. water distribution pipe; 9. cooling pipe; 10. water outlet pipe; 11. mounting plate; 12. telescopic pipe; 13. filter screen; 14. alkaline purification layer; 15. partition layer; 16. acid purification layer; 17. air hole; 18. slot; 19. bolt; 20. slide groove; 21. water injection pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-4 The utility model provides an embodiment: a smelting furnace capable of purifying flue gas, comprising a furnace body 1, a base 2 is arranged at the four corners of the lower end of the furnace body 1, and the base 2 is fixedly connected to the furnace body 1, the front end of the furnace body 1 is a detachable structure, and a container 3 is fixedly arranged inside the furnace body 1; and further comprising:

[0027] The purification pipe 4 is arranged at the middle position of the upper end of the furnace body 1. A slide groove 20 is arranged above the inside of the purification pipe 4. A mounting plate 11 is arranged inside the slide groove 20, and the mounting plate 11 and the slide groove 20 are slidably limited.

[0028] An acidic purification layer 16 is disposed at the lower part of the mounting plate 11 and is fixedly connected to the inner wall of the mounting plate 11. An alkaline purification layer 14 is fixedly disposed at the upper part of the mounting plate 11.

[0029] The filter screen 13 is disposed inside the upper and lower ends of the mounting plate 11 , and the filter screen 13 is fixedly connected to the mounting plate 11 .

[0030] During use, when the smelting furnace is working, the high temperature inside it will cause the flue gas to evaporate upward. At this time, the flue gas passes through the filter 13 on the mounting plate 11 to filter the particles in the flue gas. When the filtered flue gas first enters the acid purification layer 16 and the alkaline gas in the flue gas is purified through the acid-base neutralization reaction, and then passes through the alkaline purification layer 14 to purify the acidic gas in the flue gas.

[0031] See also Figure 1 and Figure 2 A water tank 5 is fixedly provided on one side of the upper end of the furnace body 1, and a water injection pipe 21 is provided on the upper end of the water tank 5. A water pump 6 is fixedly provided on the upper end of the furnace body 1 near the inner side of the water tank 5, and one end of the water pump 6 is connected to the water tank 5 through a water pipe, so as to facilitate the extraction of cooling water from the water tank 5 through the water pump 6.

[0032] See also Figure 1 and Figure 3 Seven cooling pipes 9 are arranged below the inside of the purification pipe 4, and both ends of the cooling pipe 9 extend to the outside of the purification pipe 4. Water distribution pipes 8 are fixedly arranged on both sides of the cooling pipe 9 located outside the purification pipe 4. A water inlet pipe 7 is fixedly arranged on one side of the water distribution pipe 8, and the water inlet pipe 7 is fixedly connected to the other end of the water pump 6. A water outlet pipe 10 is fixedly arranged on one side of the water distribution pipe 8 on the other side, and the water outlet pipe 10 is connected to the water tank 5 through a pipeline, which is convenient for cooling the high-temperature flue gas and preventing the high-temperature flue gas from damaging the mounting plate 11.

[0033] See also Figure 1 A telescopic tube 12 is provided at the upper end of the purification tube 4 , and the telescopic tube 12 is fixedly connected to the purification tube 4 , so that the position of smoke exhaust can be changed by extending the telescopic tube 12 .

[0034] See also Figure 4 A separation layer 15 is provided between the alkaline purification layer 14 and the acidic purification layer 16 to prevent the alkaline purification layer 14 and the acidic purification layer 16 from directly contacting each other and causing a reduction in the purification effect.

[0035] See also Figure 1 There are slots 18 at the upper and lower parts inside one side of the purification tube 4, and bolts 19 are arranged at the upper and lower parts of one side of the mounting plate 11, and the other end of the bolt 19 extends into the slot 18, so as to facilitate the disassembly and assembly of the mounting plate 11.

[0036] See also Figure 1 and Figure 4 The alkaline purification layer 14, the acidic purification layer 16 and the separation layer 15 are each provided with a plurality of pores 17, and the pores 17 are evenly distributed, so as to increase the contact area between the flue gas and the alkaline purification layer 14 and the acidic purification layer 16, so as to make the purification more complete.

[0037] Working principle: when the smelting furnace is working, the high temperature inside it will cause the flue gas to evaporate upward. First, turn on the water pump 6 to draw cooling water from the water tank 5. At this time, the cooling water enters the cooling pipes 9 at different positions through the water distribution pipe 8 on one side, so that the cooling pipes 9 are filled with cooling water. The flowing cooling water enters the water outlet pipe 10 through the water distribution pipe 8 on the other side, and the cooling water is transported back to the water tank 5 through the water outlet pipe 10. At this time, the flue gas generated contacts the cooling pipe 9, and the high-temperature flue gas absorbs heat by the low-temperature cooling water. At the same time, the flue gas that has completed cooling continues to move upward. When the flue gas is discharged, the telescopic tube 12 can be pulled to extend the telescopic tube 12. When it reaches the appropriate position, the opening of the telescopic tube 12 is placed in a ventilated place. At this time, the purified flue gas is directly discharged through the telescopic tube 12.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A smelting furnace capable of purifying flue gas, comprising a furnace body (1), bases (2) are arranged at the four corners of the lower end of the furnace body (1), and the bases (2) are fixedly connected to the furnace body (1), the front end of the furnace body (1) is a detachable structure, and a containing cylinder (3) is fixedly arranged inside the furnace body (1); Features: Also includes: A purification pipe (4) is arranged at a middle position of the upper end of the furnace body (1); a slide groove (20) is arranged above the interior of the purification pipe (4); a mounting plate (11) is arranged inside the slide groove (20); and the mounting plate (11) and the slide groove (20) are slidably limited; an acidic purification layer (16) disposed below the interior of the mounting plate (11), the acidic purification layer (16) being fixedly connected to the inner wall of the mounting plate (11), and an alkaline purification layer (14) being fixedly disposed above the interior of the mounting plate (11); A filter screen (13) is arranged inside the upper and lower ends of the mounting plate (11), and the filter screen (13) is fixedly connected to the mounting plate (11).

2. A smelting furnace capable of purifying flue gas according to claim 1, characterized in that: A water tank (5) is fixedly arranged on one side of the upper end of the furnace body (1), a water injection pipe (21) is arranged on the upper end of the water tank (5), a water pump (6) is fixedly arranged on the upper end of the furnace body (1) close to the inner side of the water tank (5), and one end of the water pump (6) is connected to the water tank (5) through a water pipe.

3. A smelting furnace capable of purifying flue gas according to claim 2, characterized in that: Seven cooling pipes (9) are arranged below the interior of the purification pipe (4), and both ends of the cooling pipes (9) extend to the outside of the purification pipe (4). Water distribution pipes (8) are fixedly arranged on both sides of the cooling pipes (9) located outside the purification pipe (4). A water inlet pipe (7) is fixedly arranged on one side of the water distribution pipe (8), and the water inlet pipe (7) is fixedly connected to the other end of the water pump (6). A water outlet pipe (10) is fixedly arranged on one side of the water distribution pipe (8) on the other side, and the water outlet pipe (10) is connected to the water tank (5) through a pipeline.

4. A smelting furnace capable of purifying flue gas according to claim 1, characterized in that: A telescopic tube (12) is provided at the upper end of the purification tube (4), and the telescopic tube (12) is fixedly connected to the purification tube (4).

5. A smelting furnace capable of purifying flue gas according to claim 1, characterized in that: A separation layer (15) is provided between the alkaline purification layer (14) and the acidic purification layer (16).

6. A smelting furnace capable of purifying flue gas according to claim 1, characterized in that: The upper and lower parts of one side of the purification pipe (4) are both provided with slots (18), and the upper and lower parts of one side of the mounting plate (11) are both provided with bolts (19), and the other end of the bolt (19) extends into the slot (18).

7. A smelting furnace capable of purifying flue gas according to claim 5, characterized in that: The alkaline purification layer (14), the acidic purification layer (16) and the separation layer (15) are all provided with a plurality of pores (17) inside, and the pores (17) are distributed at equal intervals.

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