Industrial flue gas high-temperature metal bag dust collector with desulfurization and deslagging structure

Abstract

The invention belongs to the field of industrial flue gas purification, and particularly relates to an industrial flue gas high-temperature metal bag dust remover with a desulfurization and deslagging structure, which comprises a tank body, an air inlet is fixedly inserted in one side of the lower part of the tank body, an air outlet is fixedly inserted in the other side of the upper part of the tank body, and a dust removal mechanism is fixedly arranged at the upper part in the tank body. According to the invention, a wave-shaped limiting ring rotates, so that a metal bag in a filter part reciprocates along a fixed disc, dust on the surface of the metal bag falls to a slag discharge port through a reciprocating shaking phenomenon, and meanwhile, a dust removal brush located on the outer side of the metal bag continuously brushes the surface of the metal bag, so that the dust removal effect is improved, and the dust removal effect is improved. And the dust removal device and the dust removal device cooperate with each other to jointly improve the dust removal and slag discharge effects of the metal bag, so that the metal bag is always kept in a relatively clean state in the flue gas purification process, and the flue gas purification efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of industrial furnace smoke purification equipment, in particular to an industrial furnace smoke high-temperature metal bag dust collector with a desulfurization and slag removal structure. Background Art

[0002] Industrial furnace smoke high temperature metal bag dust collector is a dust removal equipment specially designed for treating industrial furnace smoke. It uses metal filter bags as filter elements, can filter furnace smoke efficiently under high temperature environment, remove dust, smoke and other harmful substances, and remove sulfide in flue gas by spraying desulfurizer through atomization. Sulfide solids, dust and smoke are deposited under the tank in small amounts, and most of them are filtered and removed by metal bags; However, in the prior art, as the use time of the metal bag dust collector increases, more and more dust accumulates on the surface of the metal bag, which will change the pores of the metal bag, thereby affecting the filtration resistance, filtration efficiency and filtration accuracy. The metal bag is often disassembled to clean the dust residue above it. This method requires closing the air inlet, and it is difficult to continuously shake the metal bag and brush it back and forth during the continuous purification of industrial flue gas to remove the dust residue above it, thereby achieving cleaning and slag removal of the metal bag, thereby improving the purification efficiency of the flue gas. Summary of the invention

[0003] The purpose of the present invention is to provide a high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure, which solves the problem in the prior art that it is difficult to clean the metal bags by continuously shaking and reciprocatingly brushing the metal bags during the continuous purification of industrial flue gas, thereby improving the purification efficiency of the flue gas.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure, comprising a tank body, an air inlet is fixedly inserted on one side below the tank body, an air outlet is fixedly inserted on the other side above the tank body, a dust removal mechanism is fixedly arranged above the inside of the tank body, and a desulfurization component for flue gas desulfurization is arranged in the middle of the tank body; The dust removal mechanism includes a motor fixedly connected to the top wall of the tank body, the output end of the motor is fixedly connected to a driving shaft, the bottom end of the driving shaft is connected to the inner wall of the tank body through a mounting plate, a connecting sleeve is fixedly arranged above the driving shaft, a wave-shaped limiting ring is arranged on the circumferential outer wall of the connecting sleeve through a plurality of connecting rods, a plurality of rollers are arranged above the wave-shaped limiting ring, and the plurality of rollers are evenly distributed above the wave-shaped limiting ring, a movable rod is rotatably arranged on the outer side of the roller, the bottom end of the movable rod extends to the bottom of the wave-shaped limiting ring and is provided with a filter element, and a slag discharge assembly is arranged on the outer wall of the filter element.

[0005] Furthermore, the filter element includes several connecting plates fixedly connected to the bottom end of the movable rod, several of the connecting plates are fixedly provided with fixing rings on the outside, metal bags are fixedly provided at the bottom of the fixing rings, and several fixing plates are slidably provided on the outside of the metal bags.

[0006] Furthermore, the circumferential side wall of the fixed disk is fixedly connected to the inner wall of the tank body, the center of the fixed disk is rotatably connected to the drive shaft through a bearing, a limiting ring frame is fixedly provided on the top of the fixed disk, and a plurality of the movable rods are slidably matched with the limiting ring frame.

[0007] Furthermore, the slag removal assembly includes two dust removal rings that slide with the outer wall of the metal bag, and the inner wall of the dust removal ring is fixedly provided with a dust removal brush, and the dust removal brush is in contact with the outer wall of the metal bag. The two dust removal rings are fixedly connected by a lower connecting column, and the dust removal ring located above is fixedly connected to the bottom wall of the fixed plate by an upper connecting column.

[0008] Furthermore, the desulfurization component includes an annular tube fixedly connected to the inner wall of the middle part of the tank body, the output end of the annular tube is provided with a plurality of atomizing nozzles, the input end of the annular tube is fixedly provided with a liquid inlet, and the liquid inlet is fixedly inserted on the side wall of the tank body.

[0009] Furthermore, a plurality of supporting legs are arranged below the tank body, and a slag discharge port is arranged at the output end of the tank body.

[0010] The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure of the present invention has the following working steps: Step 1: Flue gas enters the tank through the air inlet, and the desulfurizer enters the annular tube through the liquid inlet. It is then sprayed out through a number of atomizing nozzles to react chemically with harmful gases such as sulfur dioxide in the flue gas to generate solid sulfates or other compounds. Part of the solid compounds are deposited at the slag discharge port, and the other part of the fixed compounds are further filtered by the metal bag; Step 2: At the same time, the motor drives the drive shaft to drive the wave-shaped limit ring to rotate, and the regular wave-shaped limit ring makes the roller reciprocate along the wave-shaped limit ring, so that the movable rod drives the filter element to reciprocate, and the drive shaft rotates rapidly, so that the metal bag in the filter element reciprocates rapidly, allowing a large amount of dust adhering to the top of the metal bag to fall to the slag discharge port to avoid the metal bag being blocked; Step 3: With the rapid reciprocating motion of the metal bag, the metal bag cooperates with the surface of the dust removal brush to further remove the dust and slag on the surface of the metal bag, allowing a small amount of dust on the surface of the metal bag to fall to the slag discharge port, and cooperate with the rapid reciprocating motion of the metal bag to complete the slag removal and dust removal on the surface of the metal bag.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the metal bag in the filter element reciprocates along the fixed plate by rotating the wave-shaped limit ring. The dust on the surface of the metal bag falls to the slag discharge port through the reciprocating shaking phenomenon. At the same time, the dust removal brush located on the outside of the metal bag continuously brushes its surface to remove the dust on the surface that is difficult to shake and fall. The two cooperate with each other to jointly improve the dust removal and slag discharge effect of the metal bag, so that the metal bag always maintains a relatively clean state during the process of purifying the flue gas, thereby improving the purification efficiency of the flue gas; 2. In the present invention, the driving shaft drives the wave-shaped limit ring to rotate through the motor, and the regular wave-shaped limit ring makes the roller reciprocate along the wave-shaped limit ring, so that the movable rod drives the filter element to reciprocate, and the driving shaft rotates rapidly, so that the metal bag in the filter element reciprocates rapidly, allowing the dust adhering to the top of the metal bag to fall to the slag discharge port, thereby preventing the metal bag from being blocked, thereby affecting its filtering efficiency; 3. In the present invention, through the rapid reciprocating motion of the metal bag, the metal bag cooperates with the surface of the dust removal brush to further remove the dust on the surface of the metal bag, allowing the dust on the surface of the metal bag to fall to the slag discharge port, and cooperate with the rapid reciprocating motion of the metal bag to jointly complete the slag discharge and dust removal on the surface of the metal bag, thereby improving the purification efficiency of the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings; Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A three-dimensional diagram of the dust removal mechanism of the present invention; Figure 3 for Figure 2 A schematic diagram of the structure enlargement of the A region; Figure 4 is a three-dimensional diagram of the filter element of the present invention; Figure 5 is a three-dimensional diagram of the slag discharge assembly of the present invention; Figure 6 It is a schematic diagram of the internal structure of the slag discharge assembly in the present invention; Figure 7 It is a partial structural schematic diagram of the tank body in the present invention.

[0013] Figure numerals: 1. Support leg; 2. Tank body; 3. Slag discharge port; 4. Air inlet; 5. Dust removal mechanism; 6. Desulfurization component; 7. Air outlet; 8. Motor; 9. Fixed plate; 10. Limiting ring frame; 11. Driving shaft; 12. Mounting plate; 51. Connecting sleeve; 52. Connecting rod; 53. Wave-shaped limiting ring; 54. Roller; 55. Movable rod; 56. Filter element; 561. Fixed ring; 562. Metal bag; 563. Connecting plate; 57. Slag discharge component; 571. Dust removal ring; 572. Dust removal brush; 573. Lower connecting column; 574. Upper connecting column; 61. Ring pipe; 62. Atomizing nozzle; 63. Liquid inlet. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0015] like Figure 1-7 As shown, the industrial furnace smoke high-temperature metal bag dust collector with a desulfurization and slag removal structure proposed in this embodiment includes a tank body 2, an air inlet 4 is fixedly inserted on one side below the tank body 2, an air outlet 7 is fixedly inserted on the other side above the tank body 2, a dust removal mechanism 5 is fixedly arranged on the upper part of the tank body 2, and a desulfurization component 6 for desulfurizing flue gas is arranged in the middle of the tank body 2; It should be noted that the smoke enters through the air inlet 4, is purified and then discharged through the air outlet 7, and control valves are provided on the outer walls of the air inlet 4 and the air outlet 7 to facilitate closing and opening the air inlet 4 and the air outlet 7; The dust removal mechanism 5 includes a motor 8 fixedly connected to the top wall of the tank body 2, the output end of the motor 8 is fixedly connected to the drive shaft 11, the bottom end of the drive shaft 11 is connected to the inner wall of the tank body 2 through a mounting plate 12, a connecting sleeve 51 is fixedly arranged above the drive shaft 11, a wave-shaped limit ring 53 is arranged on the circumferential outer wall of the connecting sleeve 51 through a plurality of connecting rods 52, the plurality of connecting rods 52 are evenly distributed on the outer wall of the connecting sleeve 51, a plurality of rollers 54 are arranged above the wave-shaped limit ring 53, the plurality of rollers 54 are evenly distributed above the wave-shaped limit ring 53, a movable rod 55 is rotatably arranged on the outer side of the roller 54, the bottom end of the movable rod 55 extends to the bottom of the wave-shaped limit ring 53 and is provided with a filter 56, and a slag discharge assembly 57 is arranged on the outer wall of the filter 56.

[0016] It should be noted that the movable rod 55 is in an inverted L shape; the bottom of the driving shaft 11 is connected to the mounting plate 12 through a bearing, and the motor 8 enables the driving shaft 11 to drive the wave-shaped limit ring 53 to rotate, and the regular wave-shaped limit ring 53 enables the roller 54 to reciprocate along the wave-shaped limit ring 53, so that the movable rod 55 drives the filter element 56 to reciprocate, and cooperates with the rapid rotation of the driving shaft 11 to allow the dust adhering to the top of the filter element 56 to fall to the slag discharge port 3.

[0017] like Figure 1 , 4 As shown, the filter element 56 includes a plurality of connecting plates 563 fixedly connected to the bottom end of the movable rod 55, a fixing ring 561 is fixedly provided on the outer side of the plurality of connecting plates 563, a metal bag 562 is fixedly provided on the bottom of the fixing ring 561, and a fixing plate 9 is slidably provided on the outer side of the plurality of metal bags 562.

[0018] It should be noted that the fixing plate 9 serves to limit the metal bag 562; the fixing plate 9 is fixedly connected to the inner wall of the tank body 2, so that the industrial smoke can only be discharged through the metal bag 562, thereby preventing the industrial smoke from leaking out; The circumferential diameter of the fixed ring 561 is larger than the diameter of the metal bag 562. When the roller 54 moves to the bottom of the wave-shaped limit ring 53, it just contacts the fixed plate 9, thereby achieving a slight impact on the fixed ring 561. While the metal bag 562 reciprocates, it intermittently impacts the fixed plate 9, thereby accelerating the removal of dust and residue on the surface of the metal belt 562 and improving the efficiency of removing dust and residue on the surface of the metal belt 562.

[0019] like Figure 1 , 7 As shown, the circumferential side wall of the fixed plate 9 is fixedly connected to the inner wall of the tank body 2, the center of the fixed plate 9 is rotatably connected to the drive shaft 11 through a bearing, a limit ring frame 10 is fixedly provided on the top of the fixed plate 9, and a plurality of movable rods 55 are slidably matched with the limit ring frame 10.

[0020] It should be noted that the limiting ring frame 10 serves to limit the movable rod 55 .

[0021] The metal bag 562 in the filter element 56 moves back and forth quickly, allowing the dust adhering to the top of the metal bag 562 to fall to the slag discharge port 3, thereby preventing the metal bag 562 from being blocked, thereby affecting its filtering efficiency.

[0022] like Figure 1 , 5-6, the slag removal assembly 57 includes two dust removal rings 571 that are slidably matched with the outer wall of the metal bag 562, and the inner wall of the dust removal ring 571 is fixedly provided with a dust removal brush 572, and the dust removal brush 572 is in contact with the outer wall of the metal bag 562. The two dust removal rings 571 are fixedly connected by a lower connecting column 573, and the dust removal ring 571 located above is fixedly connected to the bottom wall of the fixed plate 9 by an upper connecting column 574.

[0023] It should be noted that, with the rapid reciprocating motion of the metal bag 562, the metal bag 562 cooperates with the surface of the dust removal brush 572 to further remove the dust on the surface of the metal bag 562, allowing the dust on the surface of the metal bag 562 to fall to the slag discharge port 3, and cooperate with the rapid reciprocating motion of the metal bag 562 to complete the slag discharge and dust removal on the surface of the metal bag 562, thereby improving the purification efficiency of the flue gas.

[0024] In this embodiment, the wave-shaped limiting ring 53 rotates to make the metal bag 562 in the filter element 56 reciprocate along the fixed plate 9. The reciprocating shaking allows the dust on the surface of the metal bag 562 to fall to the slag discharge port 3. At the same time, the dust removal ring 571 located on the outside of the metal bag 562 continuously brushes its surface to remove the dust on its surface that is difficult to shake and fall. The two cooperate with each other to improve the dust removal and slag discharge effect of the metal bag 562, thereby improving the flue gas purification efficiency of the device. Embodiment 2

[0025] like Figure 1 , 7 As shown, the high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure proposed in this embodiment is improved on the basis of Example 1. The desulfurization component 6 includes an annular tube 61 fixedly connected to the middle inner wall of the tank body 2, and a plurality of atomizing nozzles 62 are arranged at the output end of the annular tube 61. The atomizing nozzles 62 are evenly distributed above the annular tube 61. The input end of the annular tube 61 is fixedly provided with a liquid inlet 63, and the liquid inlet 63 is fixedly inserted on the side wall of the tank body 2, and the desulfurizer is transported to the annular tube 61 through the liquid inlet 63.

[0026] It should be noted that the desulfurizing agent is discharged through a plurality of atomizing nozzles 62 to chemically react with harmful gases such as sulfur dioxide in the flue gas to generate solid sulfate or other compounds, thereby achieving desulfurization of the flue gas.

[0027] like Figure 1 As shown, a plurality of supporting legs 1 are arranged under the tank body 2, and a slag discharge port 3 is arranged at the output end of the tank body 2. It should be noted that a control valve is arranged at the slag discharge port 3. When the dust slag at the slag discharge port 3 is discharged, it is only necessary to open the control valve, and the supporting legs 1 play the role of supporting the tank body 2.

[0028] It can be seen from the second embodiment in combination with the first embodiment that the desulfurizer discharged by a plurality of atomizing nozzles 62 reacts chemically with harmful gases such as sulfur dioxide in the industrial flue gas to generate solid sulfates or other compounds, thereby completing the removal of sulfur, wherein a portion is deposited at the bottom of the tank body 2, and the other portion is filtered by the filter element 56. At the same time, as the filter element 56 continuously swings back and forth, a large amount of dust residue on the surface of the metal bag 562 falls to the bottom of the tank body 2, and then the dust removal ring 571 continuously brushes its surface to remove a small amount of dust residue on the metal bag 562, thereby achieving slag discharge of the device, so that the metal bag 562 always maintains a relatively clean state during the process of purifying the flue gas, thereby improving the purification efficiency of the flue gas.

[0029] Among them, the working steps of the industrial furnace smoke high temperature metal bag dust collector are as follows: Step 1: Flue gas enters the tank body 2 through the air inlet 4, and the desulfurizer enters the annular tube 61 through the liquid inlet pipe, and then is discharged through a plurality of atomizing nozzles 62 to react chemically with harmful gases such as sulfur dioxide in the flue gas to generate solid sulfate or other compounds, thereby completing the removal of sulfur in the industrial flue gas. A part of the solid compounds is deposited at the slag discharge port 3, and the other part of the fixed compounds is further filtered by the metal bag 562; Step 2: At the same time, the motor 8 causes the drive shaft 11 to drive the wave-shaped limit ring 53 to rotate, and the regular wave-shaped limit ring 53 causes the roller 54 to reciprocate along the wave-shaped limit ring 53, so that the movable rod 55 drives the filter element 56 to reciprocate, and cooperates with the rapid rotation of the drive shaft 11 to make the metal bag 562 in the filter element 56 reciprocate rapidly, so that a large amount of dust residue adhering to the top of the metal bag 562 falls to the residue discharge port 3, so as to avoid the metal bag 562 being blocked, thereby affecting its filtering efficiency; Step three: With the rapid reciprocating motion of the metal bag 562, the metal bag 562 cooperates with the surface of the dust removal brush 572, so that the dust removal brush 572 is equivalent to scraping the surface of the metal bag 562 back and forth, further removing the dust on the surface of the metal bag 562, allowing a small amount of dust on the surface of the metal bag 562 to fall to the slag discharge port 3, and cooperate with the rapid reciprocating motion of the metal bag 562 to complete the slag discharge and dust removal on the surface of the metal bag 562, so that the metal bag 562 can always be kept relatively clean during the continuous purification of the flue gas, thereby improving the purification efficiency of the flue gas.

[0030] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure, comprising a tank body (2), an air inlet (4) fixedly inserted on one side below the tank body (2), and an air outlet (7) fixedly inserted on the other side above the tank body (2), characterized in that: A dust removal mechanism (5) is fixedly arranged above the interior of the tank body (2), and a desulfurization component (6) for desulfurizing flue gas is arranged in the middle of the tank body (2); The dust removal mechanism (5) comprises a motor (8) fixedly connected to the top wall of the tank body (2); the output end of the motor (8) is fixedly connected to a drive shaft (11); the bottom end of the drive shaft (11) is connected to the inner wall of the tank body (2) via a mounting plate (12); a connecting sleeve (51) is fixedly arranged above the drive shaft (11); a wave-shaped limit ring (53) is arranged on the circumferential outer wall of the connecting sleeve (51) via a plurality of connecting rods (52); a plurality of rollers (54) are arranged above the wave-shaped limit ring (53); the plurality of rollers (54) are evenly distributed above the wave-shaped limit ring (53); a movable rod (55) is rotatably arranged outside the roller (54); the bottom end of the movable rod (55) extends to the bottom of the wave-shaped limit ring (53) and is provided with a filter element (56); a slag discharge assembly (57) is arranged on the outer wall of the filter element (56).

2. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 1 is characterized in that: The filter element (56) comprises a plurality of connecting plates (563) fixedly connected to the bottom end of the movable rod (55); a fixing ring (561) is fixedly arranged on the outer side of the plurality of connecting plates (563); a metal bag (562) is fixedly arranged on the bottom of the fixing ring (561); and a fixing plate (9) is slidably arranged on the outer side of the plurality of metal bags (562).

3. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 2 is characterized in that: The circumferential side wall of the fixed disk (9) is fixedly connected to the inner wall of the tank body (2); the center of the fixed disk (9) is rotatably connected to the drive shaft (11) via a bearing; a limit ring frame (10) is fixedly provided on the top of the fixed disk (9); and a plurality of movable rods (55) are slidably matched with the limit ring frame (10).

4. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 3 is characterized in that: The slag removal assembly (57) comprises two dust removal rings (571) that are slidably matched with the outer wall of the metal bag (562); a dust removal brush (572) is fixedly provided on the inner wall of the dust removal ring (571); the dust removal brush (572) is in contact with the outer wall of the metal bag (562); the two dust removal rings (571) are fixedly connected via a lower connecting column (573); and the dust removal ring (571) located above is fixedly connected to the bottom wall of the fixed plate (9) via an upper connecting column (574).

5. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 4 is characterized in that: The desulfurization component (6) comprises an annular tube (61) fixedly connected to the inner wall of the middle part of the tank body (2), a plurality of atomizing nozzles (62) are arranged at the output end of the annular tube (61), and a liquid inlet (63) is fixedly arranged at the input end of the annular tube (61), and the liquid inlet (63) is fixedly inserted on the side wall of the tank body (2).

6. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 5 is characterized in that: A plurality of supporting legs (1) are arranged below the tank body (2), and a slag discharge port (3) is arranged at the output end of the tank body (2).

7. The high-temperature metal bag dust collector for industrial furnace smoke with a desulfurization and slag removal structure according to claim 6 is characterized in that: The working steps of the industrial furnace smoke high temperature metal bag dust collector are as follows: Step 1: Flue gas enters the tank body (2) through the air inlet (4), and the desulfurizer enters the annular tube (61) through the liquid inlet (63), and then is sprayed out through a plurality of atomizing nozzles (62) to react chemically with harmful gases such as sulfur dioxide in the flue gas to generate solid sulfate or other compounds, a portion of which is deposited at the slag discharge port (3), and another portion of the solid compounds is further filtered by the metal bag (562); Step 2: At the same time, the motor (8) causes the drive shaft (11) to drive the wave-shaped limit ring (53) to rotate, and the regular wave-shaped limit ring (53) causes the roller (54) to reciprocate along the wave-shaped limit ring (53), so that the movable rod (55) drives the filter element (56) to reciprocate, and cooperates with the rapid rotation of the drive shaft (11) to cause the metal bag (562) in the filter element (56) to reciprocate rapidly, so that a large amount of dust adhering to the top of the metal bag (562) falls to the slag discharge port (3), thereby preventing the metal bag (562) from being blocked; Step 3: As the metal bag (562) rapidly reciprocates, the metal bag (562) cooperates with the surface of the dust removal brush (572) to further remove dust and slag on the surface of the metal bag (562), allowing a small amount of dust on the surface of the metal bag (562) to fall to the slag discharge port (3), and cooperate with the rapid reciprocating motion of the metal bag (562) to jointly complete the slag removal and dust removal on the surface of the metal bag (562).

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