Cooperative purification device for flue gas pollutants of glass kiln

Abstract

The utility model belongs to the technical field of flue gas treatment, and particularly relates to a glass kiln flue gas pollutant collaborative purification device which comprises an electric dust remover, a denitration reactor, a desulfurization reactor and a desulfurization dust remover which are used for collaborative purification of glass kiln flue gas pollutants, an air inlet pipe is fixedly communicated between the denitration reactor and the desulfurization reactor, the desulfurization reactor is communicated with the desulfurization dust remover, and a circulating spraying mechanism is arranged in the desulfurization reactor. The filter material beating device is reasonable in structural design, the beating head periodically beats a filter material while performing circular motion, the outer surface of the filter material can be comprehensively beaten and vibrated, and under vibration, a hard shell on the surface of the filter material can be shattered and falls off, so that the filter material is restored to the original shape, the situation that the contact area between smoke and a liquid film is reduced due to the fact that the hard shell is formed by the residual liquid film is avoided, and the service life of the filter material is prolonged. Therefore, the desulfurization effect is greatly improved, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a collaborative purification device for flue gas pollutants in a glass kiln. Background Art

[0002] The flue gas from a glass kiln is characterized by complex pollutant composition, high pollutant concentration, strong dust viscosity, and strong acidity. In particular, the concentrations of SO3 and NOx in the flue gas are very high. When mixed with inferior petroleum coke powder, the SO2 content in the flue gas is also very high. The dust has the characteristics of low melting point, fine particles, and low resistivity, and the flue gas temperature is high. The synergistic control technology for the above-mentioned complex pollutants in the flue gas is very difficult. In addition, there is a certain concentration of SO2 in the flue gas of a glass kiln, and sometimes the SO2 concentration is as high as 3000mg / m3. Wet desulfurization or dry / semi-dry integrated technology can be used for desulfurization treatment.

[0003] After searching: China's patent number CN205252861U is a collaborative purification device for flue gas pollutants in a glass kiln, which mainly includes a waste heat boiler, an electrostatic precipitator, an SCR denitrification reactor, a Na2CO3 feeding device, a desulfurizer dosing device, and a desulfurization reactor. The waste heat boiler includes a high-temperature side and a low-temperature side. The high-temperature side is connected to the glass kiln and the electrostatic precipitator respectively, the electrostatic precipitator is connected to the SCR denitrification reactor, the SCR denitrification reactor is connected to the low-temperature side, and the outlet of the low-temperature side is connected to the desulfurization reactor. The Na2CO3 feeding device and the desulfurizer dosing device are both connected to the desulfurization reactor, the desulfurization reactor is connected to the desulfurization dust collector, and the desulfurization dust collector is connected to the desulfurization reactor through an ash circulation metering device.

[0004] However, although the above-mentioned collaborative purification device for flue gas pollutants in the glass kiln adopts an electrostatic precipitator, an SCR denitrification reactor, a desulfurization reactor and a desulfurization dust collector to collaboratively purify the flue gas in the glass kiln to improve the purification effect, in the desulfurization reactor, flue gas desulfurization generally adopts wet desulfurization, which requires spraying an alkaline solution on the filter material. After long-term desulfurization, the alkaline solution on the filter material is easily deposited and forms a hard shell, which reduces the contact area between the flue gas and the liquid film on the surface of the filter material and greatly reduces the desulfurization effect. Therefore, we propose a collaborative purification device for flue gas pollutants in the glass kiln to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above shortcomings and to propose a collaborative purification device for glass furnace flue gas pollutants.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A collaborative purification device for flue gas pollutants from a glass kiln comprises an electrostatic precipitator, a denitrification reactor, a desulfurization reactor and a desulfurization dust collector for collaborative purification of flue gas pollutants from a glass kiln, the electrostatic precipitator being connected to the denitrification reactor, an air intake pipe being fixedly connected between the denitrification reactor and the desulfurization reactor, the desulfurization reactor being connected to the desulfurization dust collector, a circulating spray mechanism being arranged in the desulfurization reactor, two filter materials being fixedly connected in the desulfurization reactor, two annular grooves being provided in the desulfurization reactor, the annular grooves corresponding to the filter materials, a knocking and vibration mechanism being arranged between the annular grooves and the filter materials, and an addition pipe being fixedly connected on one side of the desulfurization reactor.

[0008] As a preferred embodiment of the present invention, the bottom of the air inlet pipe is fixedly connected to a plurality of air outlet heads.

[0009] As a preferred embodiment of the present invention, the circulating spray mechanism includes a circulating pump fixedly connected to one side of the desulfurization reactor, the bottom of the circulating pump is fixedly connected to a liquid supply pipe, the liquid supply pipe is connected to the bottom of one side of the desulfurization reactor, one side of the circulating pump is fixedly connected to a liquid spray pipe, and the bottom of the liquid spray pipe is fixedly connected to a plurality of nozzles.

[0010] As a preferred embodiment of the present invention, a filter screen is fixedly connected to the inner wall of the bottom of the desulfurization reactor, and the filter screen is connected to one end of the liquid supply pipe.

[0011] As a preferred embodiment of the present invention, the knocking and vibration mechanism includes an inner gear ring fixedly connected to the annular groove and a movable box movably arranged in the annular groove, a rotating motor is fixedly connected to the bottom inner wall of the movable box, a worm is fixedly connected to the output shaft of the rotating motor, a gear is fixedly connected to the top end of the worm, and the gear is meshed with the inner gear ring.

[0012] As a preferred embodiment of the present invention, a worm gear is rotatably connected to the inner wall of the rear side of the movable box, the worm is meshed with the worm gear, a driving column is fixedly connected to the front side of the worm gear, one side of the driving column is fixedly connected to an abutting rod, the top of the abutting rod is fixedly connected to a connecting rod, one end of the connecting rod is fixedly connected to a mounting plate, one side of the mounting plate is fixedly connected to a plurality of knocking heads, the plurality of knocking heads are all movably abutted against the outside of the filter material, and the same return spring is fixedly connected between the movable box and the mounting plate.

[0013] As a preferred embodiment of the present invention, an annular guide groove is provided on the bottom inner wall of the annular groove, and a guide block is fixedly connected to the bottom of the moving box, and the guide block is slidably sleeved in the annular guide groove.

[0014] As a preferred embodiment of the present invention, the return spring is movably sleeved on the outside of the connecting rod.

[0015] In the present invention, the collaborative purification device for flue gas pollutants of a glass kiln is described. The dust in the flue gas can be removed by an electrostatic precipitator, the denitrification effect of the flue gas can be achieved by a denitrification reactor, the desulfurization effect of the flue gas can be achieved by a desulfurization reactor, and finally the desulfurization dust collector can be used to desulfurize and remove dust in the flue gas again, thereby making the flue gas purification effect better. The denitrified flue gas is injected into the alkaline solution inside the desulfurization reactor through the air inlet pipe and the air outlet head, and the flue gas can be washed with water, and a certain desulfurization effect can be achieved at the same time. The alkaline solution can be pumped into the spray pipe through the circulation pump and finally sprayed out through multiple nozzles. The sprayed alkaline solution can fully absorb the sulfur-containing gas in the flue gas. At the same time, the alkaline solution forms a liquid film on one side of the filter material. The alkaline solution liquid film can evenly and comprehensively absorb the sulfur-containing gas in the flue gas, thereby improving the desulfurization effect. The alkaline solution falls to the bottom of the desulfurization reactor again, and after being filtered by the filter mesh, it can be pumped out by the circulation pump again for use.

[0016] In the present invention, a glass furnace flue gas pollutant collaborative purification device is described, which drives the rotation of the worm and the gear through the rotating motor. After the gear is meshed with the inner gear ring, the gear will roll along the inner gear ring. Under the rolling of the gear, the moving box and the guide block will be driven to move in an annular guide groove. While the moving box is moving in an annular motion, the worm drives the rotation of the worm wheel, and the worm wheel drives the rotation of the driving column. The driving column drives the outward movement of the connecting rod, the mounting plate and the multiple knocking heads, and squeezes the reset spring. When the driving column is not in contact with the When the abutting rod abuts, under the elastic force of the return spring, the connecting rod, the mounting plate and multiple knocking heads will move inward, and the multiple knocking heads will knock on the filter material, so that the multiple knocking heads can periodically knock on the filter material. By knocking the filter material periodically while moving in a circular motion, the filter material can be knocked and vibrated comprehensively. Under the vibration, the hard shell on the surface of the filter material can be shattered and fall off, so that the filter material returns to its original state, avoiding the residual liquid film from forming a hard shell and reducing the contact area between the flue gas and the liquid film, thereby greatly improving the desulfurization effect.

[0017] The utility model has a reasonable structural design. The knocking head performs circular motion and periodically knocks the filter material, so the surface of the filter material can be knocked and vibrated comprehensively. Under the vibration, the hard shell on the surface of the filter material can be broken and dropped, so that the filter material can be restored to its original state, and the residual liquid film can be prevented from forming a hard shell to reduce the contact area between the flue gas and the liquid film, thereby greatly improving the desulfurization effect and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a collaborative purification device for glass furnace flue gas pollutants proposed in the utility model;

[0019] Figure 2 This is a cross-sectional view of a desulfurization reactor of a collaborative purification device for flue gas pollutants in a glass furnace proposed in the utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of part A;

[0021] Figure 4 for Figure 2 Schematic diagram of the structure of part B;

[0022] Figure 5 A three-dimensional diagram of the knocking and vibration mechanism of the collaborative purification device for flue gas pollutants in a glass furnace proposed in the utility model;

[0023] Figure 6 This is a three-dimensional diagram of the inner gear ring of the collaborative purification device for glass furnace flue gas pollutants proposed in the utility model.

[0024] In the figure: 1. Electrostatic precipitator; 2. Denitrification reactor; 3. Desulfurization reactor; 4. Desulfurization dust collector; 5. Air inlet pipe; 6. Circulation pump; 7. Liquid spray pipe; 8. Liquid supply pipe; 9. Adding pipe; 10. Nozzle; 11. Air outlet head; 12. Filter screen; 13. Filter material; 14. Internal gear ring; 15. Annular groove; 16. Annular guide groove; 17. Guide block; 18. Moving box; 19. Rotating motor; 20. Worm; 21. Gear; 22. Worm wheel; 23. Driving column; 24. Abutment rod; 25. Connecting rod; 26. Return spring; 27. Mounting plate; 28. Knocking head. 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 the embodiments.

[0026] Reference Figure 1-6 A collaborative purification device for flue gas pollutants from a glass kiln comprises an electrostatic precipitator 1, a denitration reactor 2, a desulfurization reactor 3 and a desulfurization dust collector 4 for collaborative purification of flue gas pollutants from a glass kiln, the electrostatic precipitator 1 being connected to the denitration reactor 2, an air intake pipe 5 being fixedly connected between the denitration reactor 2 and the desulfurization reactor 3, the desulfurization reactor 3 being connected to the desulfurization dust collector 4, a circulating spray mechanism being arranged in the desulfurization reactor 3, two filter materials 13 being fixedly connected in the desulfurization reactor 3, two annular grooves 15 being provided in the desulfurization reactor 3, the annular grooves 15 corresponding to the filter materials 13, a knocking and vibration mechanism being arranged between the annular grooves 15 and the filter materials 13, an addition pipe 9 being fixedly connected to one side of the desulfurization reactor 3, and a plurality of gas outlet heads 11 being fixedly connected to the bottom of the air intake pipe 5.

[0027] During operation, the dust in the flue gas can be removed through the electrostatic precipitator 1, the flue gas denitrification effect can be achieved through the denitrification reactor, the flue gas desulfurization effect can be achieved through the desulfurization reactor 3, and finally the flue gas can be desulfurized and dusted again through the desulfurization dust collector 4, thereby achieving a better flue gas purification effect.

[0028] As a further feature of the present invention, the circulating spraying mechanism includes a circulating pump 6 fixedly connected to one side of the desulfurization reactor 3, the bottom of the circulating pump 6 is fixedly connected to a liquid supply pipe 8, the liquid supply pipe 8 is connected to the bottom of one side of the desulfurization reactor 3, one side of the circulating pump 6 is fixedly connected to a liquid spray pipe 7, and the bottom of the liquid spray pipe 7 is fixedly connected to multiple nozzles 10.

[0029] The above scheme is adopted: the flue gas after denitrification is injected into the alkaline solution inside the desulfurization reactor 3 through the air inlet pipe 5 and the air outlet head 11, the flue gas can be washed with water, and a certain desulfurization effect can be achieved at the same time. The alkaline solution can be pumped into the spray pipe 7 and the nozzle 10 through the circulation pump 6, and finally sprayed out through multiple nozzles 10. The sprayed alkaline solution can fully absorb the sulfur-containing gas in the flue gas. At the same time, the alkaline solution forms a liquid film on one side of the filter material 13. Through the alkaline solution liquid film, the sulfur-containing gas in the flue gas can be evenly and comprehensively absorbed, thereby improving the desulfurization effect. The alkaline solution falls back to the bottom of the desulfurization reactor 3, and after being filtered by the filter mesh 12, it can be pumped out again by the circulation pump 6 for use.

[0030] As a further feature of the present invention, a filter screen 12 is fixedly connected to the inner wall of the bottom of the desulfurization reactor 3 , and the filter screen 12 is connected to one end of the liquid supply pipe 8 , which is conducive to filtering the falling alkaline solution.

[0031] As a further feature of the present invention, in order to facilitate the beating of the filter material 13 so as to shatter the hard shell and drop it, the beating and vibration mechanism includes an inner gear ring 14 fixedly connected to the annular groove 15, and a movable box 18 movably arranged in the annular groove 15. A rotating motor 19 is fixedly connected to the inner wall of the bottom of the movable box 18, and a worm 20 is fixedly connected to the output shaft of the rotating motor 19. A gear 21 is fixedly connected to the top of the worm 20, and the gear 21 is meshed with the inner gear ring 14. The inner wall of the rear side of the movable box 18 The upper rotation is connected to a worm gear 22, the worm 20 is engaged with the worm gear 22, the front side of the worm gear 22 is fixedly connected to a driving column 23, one side of the driving column 23 is fixedly connected to an abutting rod 24, the top of the abutting rod 24 is fixedly connected to a connecting rod 25, one end of the connecting rod 25 is fixedly connected to a mounting plate 27, one side of the mounting plate 27 is fixedly connected to a plurality of knocking heads 28, the plurality of knocking heads 28 are all movably abutted against the outside of the filter material 13, and the same return spring 26 is fixedly connected between the moving box 18 and the mounting plate 27.

[0032] Adopting the above scheme: after long-term use, the residual liquid film on the surface of the filter material 13 will form a hard shell, reducing the contact area between the smoke and the liquid film on the surface of the filter material 13. The rotating motor 19 drives the rotation of the worm 20 and the gear 21. After the gear 21 is meshed with the inner ring gear 14, the gear 21 will roll along the inner ring gear 14. Under the rolling of the gear 21, the moving box 18 and the guide block 17 will be driven to perform annular motion along the annular guide groove 16. While the moving box 18 is in annular motion, the worm 20 drives the rotation of the worm wheel 22, and the worm wheel 22 drives the rotation of the driving column 23. The driving column 23 drives the connecting rod 25, the mounting plate 27 and the multiple knocking heads 28 outward. Movement, and squeezing the return spring 26. When the driving column 23 is not in contact with the abutting rod 24, under the elastic force of the return spring 26, the connecting rod 25, the mounting plate 27 and the multiple knocking heads 28 will move inward, and make the multiple knocking heads 28 knock on the filter material 13, and then make the multiple knocking heads 28 periodically knock on the filter material 13. By knocking the filter material 13 periodically while moving in a circular motion, the filter material 13 can be knocked and vibrated in the whole area. Under the vibration, the hard shell on the surface of the filter material 13 can be shattered and fall off, so that the filter material 13 returns to its original state, avoiding the residual liquid film from forming a hard shell and reducing the contact area between the flue gas and the liquid film, thereby greatly improving the desulfurization effect.

[0033] As a further feature of the present invention, an annular guide groove 16 is provided on the bottom inner wall of the annular groove 15, and a guide block 17 is fixedly connected to the bottom of the movable box 18. The guide block 17 is slidably sleeved in the annular guide groove 16, and the return spring 26 is movably sleeved on the outside of the connecting rod 25, which is convenient for guiding the movable box 18 and the return spring 26, making its movement more stable and smooth.

[0034] In the utility model, during operation, the dust in the flue gas can be removed by the electrostatic precipitator 1, the flue gas denitrification effect can be achieved by the denitrification reactor, the flue gas desulfurization effect can be achieved by the desulfurization reactor 3, and finally the flue gas can be desulfurized and dusted again by the desulfurization dust collector 4, thereby achieving a better flue gas purification effect. For the specific working process, refer to the description of a glass kiln flue gas pollutant collaborative purification device with Chinese patent number CN205252861U.

[0035] The flue gas after denitration is injected into the alkaline solution inside the desulfurization reactor 3 through the air inlet pipe 5 and the air outlet head 11, which can wash the flue gas with water and achieve a certain desulfurization effect. The alkaline solution can be pumped into the spray pipe 7 and the nozzle 10 through the circulation pump 6, and finally sprayed out through multiple nozzles 10. The sprayed alkaline solution can fully absorb the sulfur-containing gas in the flue gas. At the same time, the alkaline solution forms a liquid film on one side of the filter material 13. The alkaline solution liquid film can evenly and comprehensively absorb the sulfur-containing gas in the flue gas. , which improves the desulfurization effect, and the alkaline solution falls back to the bottom of the desulfurization reactor 3, and after being filtered by the filter screen 12, it can be pumped out by the circulation pump 6 for use again. After long-term use, the liquid film remaining on the surface of the filter material 13 will form a hard shell, which reduces the contact area between the flue gas and the liquid film on the surface of the filter material 13. The worm 20 and the gear 21 are driven to rotate by the rotating motor 19. After the gear 21 is meshed with the inner gear ring 14, the gear 21 will roll along the inner gear ring 14. When the moving box 18 and the guide block 17 are in an annular motion along the annular guide groove 16, the worm 20 drives the rotation of the worm gear 22, and the worm gear 22 drives the rotation of the driving column 23. The driving column 23 drives the connecting rod 25, the mounting plate 27 and the multiple knocking heads 28 to move outward and squeeze the reset spring 26. When the driving column 23 is not in contact with the abutment rod 24, the connecting rod 25, the mounting plate 27 and the multiple knocking heads 28 are in an outward motion under the elastic force of the reset spring 26. 28 will move inward, and make multiple knocking heads 28 knock on the filter material 13, and then make multiple knocking heads 28 can knock on the filter material 13 periodically. By knocking the filter material 13 periodically while moving in a circular motion, the filter material 13 can be knocked and vibrated comprehensively. Under the vibration, the hard shell on the surface of the filter material 13 can be shattered and fall off, so that the filter material 13 returns to its original state, avoiding the residual liquid film from forming a hard shell and reducing the contact area between the flue gas and the liquid film, thereby greatly improving the desulfurization effect.

Claims

1. A collaborative purification device for glass furnace flue gas pollutants, characterized in that: The invention comprises an electrostatic precipitator (1), a denitration reactor (2), a desulfurization reactor (3) and a desulfurization dust collector (4) for collaborative purification of flue gas pollutants from a glass kiln. The electrostatic precipitator (1) is connected to the denitration reactor (2). An air inlet pipe (5) is fixedly connected between the denitration reactor (2) and the desulfurization reactor (3). The desulfurization reactor (3) is connected to the desulfurization dust collector (4). A circulating spray mechanism is provided in the desulfurization reactor (3). Two filter materials (13) are fixedly connected in the desulfurization reactor (3). Two annular grooves (15) are provided in the desulfurization reactor (3). The annular grooves (15) correspond to the filter materials (13). A knocking and vibration mechanism is provided between the annular grooves (15) and the filter materials (13). An addition pipe (9) is fixedly connected to one side of the desulfurization reactor (3).

2. The collaborative purification device for glass furnace flue gas pollutants according to claim 1, characterized in that: The bottom of the air inlet pipe (5) is fixedly connected to a plurality of air outlet heads (11).

3. The collaborative purification device for glass furnace flue gas pollutants according to claim 1, characterized in that: The circulating spray mechanism comprises a circulating pump (6) fixedly connected to one side of the desulfurization reactor (3); the bottom of the circulating pump (6) is fixedly connected to a liquid supply pipe (8); the liquid supply pipe (8) is connected to the bottom of one side of the desulfurization reactor (3); one side of the circulating pump (6) is fixedly connected to a liquid spray pipe (7); the bottom of the liquid spray pipe (7) is fixedly connected to a plurality of nozzles (10).

4. The collaborative purification device for glass furnace flue gas pollutants according to claim 3 is characterized in that: A filter screen (12) is fixedly connected to the inner wall of the bottom of the desulfurization reactor (3), and the filter screen (12) is connected to one end of the liquid supply pipe (8).

5. The collaborative purification device for glass furnace flue gas pollutants according to claim 1, characterized in that: The knocking and vibrating mechanism comprises an inner gear ring (14) fixedly connected to the annular groove (15), and a movable box (18) movably arranged in the annular groove (15); a rotating motor (19) is fixedly connected to the inner wall of the bottom of the movable box (18); a worm (20) is fixedly connected to the output shaft of the rotating motor (19); a gear (21) is fixedly connected to the top end of the worm (20); and the gear (21) is meshed with the inner gear ring (14).

6. The collaborative purification device for glass furnace flue gas pollutants according to claim 5, characterized in that: A worm gear (22) is rotatably connected to the inner wall of the rear side of the moving box (18), the worm (20) is meshed with the worm gear (22), a driving column (23) is fixedly connected to the front side of the worm gear (22), one side of the driving column (23) is fixedly connected to an abutting rod (24), the top end of the abutting rod (24) is fixedly connected to a connecting rod (25), one end of the connecting rod (25) is fixedly connected to a mounting plate (27), one side of the mounting plate (27) is fixedly connected to a plurality of knocking heads (28), the plurality of knocking heads (28) are all movably abutted against the outside of the filter material (13), and a common return spring (26) is fixedly connected between the moving box (18) and the mounting plate (27).

7. The collaborative purification device for glass furnace flue gas pollutants according to claim 5, characterized in that: An annular guide groove (16) is provided on the inner wall of the bottom of the annular groove (15), and a guide block (17) is fixedly connected to the bottom of the moving box (18), and the guide block (17) is slidably sleeved in the annular guide groove (16).

8. The collaborative purification device for glass furnace flue gas pollutants according to claim 6, characterized in that: The return spring (26) is movably sleeved on the outside of the connecting rod (25).

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