Flue gas treatment device for brick kiln

Abstract

The utility model relates to the technical field of flue gas treatment equipment, and discloses a flue gas treatment device for a brick kiln, which comprises a treatment tank and three supporting legs fixedly mounted at the bottom of the treatment tank, a gas inlet pipe is arranged at the lower end of the outer wall surface of the treatment tank, and a water drainage pipe is fixedly connected to the bottom of the treatment tank. An exhaust pipe is fixedly connected to the top of the treatment tank, the air inlet pipe, the exhaust pipe and the drainage pipe are all communicated with the interior of the treatment tank, and two spraying pipes are fixedly mounted in the treatment tank. According to the flue gas treatment device, flue gas is introduced into the treatment tank through the gas inlet pipe, the flue gas is firstly subjected to primary denitration by a mixed solvent sprayed by the spraying pipe below, then in the rising process, the flue gas subjected to primary denitration is guided into the baffle by the guide ring block, and the flow speed of the flue gas is reduced by the baffle, so that the flue gas flows into the treatment tank when the flue gas rises through the interval between the baffle and the inner wall surface of the treatment tank; and the flue gas is sprayed and denitrated again by the spraying pipe above, so that the nitrogen oxides in the flue gas are efficiently removed, and the pollution of the nitrogen oxides to the environment is reduced.

Description

Technical Field

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

[0002] During the brick kiln production process, a large amount of flue gas containing various pollutants is generated. These pollutants include nitrogen oxides, dust impurities, and some toxic gases, which have serious harm to the environment and human health. Therefore, the treatment of brick kiln flue gas has become an important research direction in the field of environmental protection.

[0003] Currently, existing brick kiln flue gas treatment technology primarily relies on denitrification through spraying. Typical treatment devices employ only a simple spraying structure, where the flue gas is directly sprayed with a spraying liquid after being introduced into the treatment equipment. However, this single spraying method presents significant problems. Due to the limited residence time of the flue gas within the treatment equipment and its high flow rate, a single spraying treatment cannot fully remove nitrogen oxides from the flue gas, resulting in poor denitrification. Large amounts of nitrogen oxides are still emitted into the atmosphere along with the flue gas, exacerbating environmental problems such as acid rain and photochemical smog, and causing long-term damage to the ecological environment.

[0004] Furthermore, existing technologies lack a convenient mechanism for filtering impurities from flue gas. After prolonged use, impurity accumulation can affect filtration effectiveness and reduce the performance of the entire treatment device. Furthermore, insufficient attention is paid to the adsorption of toxic gases in flue gas, and effective treatment measures are lacking, resulting in the exhaust gas potentially containing substances harmful to human health.

[0005] To this end, we proposed a flue gas treatment device for brick kilns. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a smoke treatment device for a brick kiln to solve the above-mentioned problems.

[0007] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a smoke treatment device for a brick kiln, comprising a treatment tank and three supporting legs fixedly installed at the bottom of the treatment tank, an air inlet pipe is provided at the lower end of the outer wall of the treatment tank, the bottom of the treatment tank is fixedly connected to a drain pipe, the top of the treatment tank is fixedly connected to an exhaust pipe, the air inlet pipe, exhaust pipe and drain pipe are all connected to the interior of the treatment tank, two spray pipes are fixedly installed inside the treatment tank, a number of spray heads are installed on the two spray pipes, a water tank is provided on the outside of the treatment tank, the water tank is connected to the two spray pipes through the water inlet pipe, a guide ring block is fixedly installed inside the treatment tank, a connecting block is fixedly connected to the interior of the treatment tank above the guide ring block, a baffle is fixedly connected to the position of the lower wall of the connecting block corresponding to the guide ring block, a filter screen is movably connected to the interior of the exhaust pipe, and a disassembly mechanism is provided on the filter screen.

[0008] Preferably, the guide ring block is a ring-shaped block, and the diameter of the inner ring at the upper end opening of the guide ring block is smaller than the size between the inner rings at the upper and lower end openings of the guide ring block. The baffle is a semi-spherical plate, and the cross-section of the baffle is arc-shaped. The position of the upper end opening of the guide ring block corresponds to the position inside the baffle.

[0009] Preferably, the guide ring block, the connecting block and the baffle are all located between the two spray pipes.

[0010] Preferably, the disassembly mechanism includes an auxiliary block, a fixed block, a fixed groove and a paddle. Two auxiliary blocks are symmetrically installed on the upper and lower sides of the wall surface of the filter away from the treatment tank. The two auxiliary blocks are elastic blocks. The ends of the side walls of the two auxiliary blocks away from each other and away from the filter are fixedly installed with fixed blocks. The inner wall surface of the exhaust pipe is provided with fixed grooves at the positions corresponding to the two fixed blocks. The internal shape and size of the fixed grooves are adapted to the shape and size of the fixed blocks. The fixed block is movably connected to the inside of the fixed groove. The ends of the side walls of the two auxiliary blocks close to each other and away from the filter are fixedly installed with paddles. Both paddles are arc-shaped blocks.

[0011] Preferably, limit blocks are symmetrically installed on the upper and lower walls of the exhaust pipe corresponding to the position of the filter, and the wall surface on one side of the two limit blocks close to the filter is in contact with the wall surface adjacent to the filter, and two U-shaped blocks are symmetrically installed on the upper and lower sides of the wall surface on the side of the filter close to the treatment tank.

[0012] Preferably, a movable activated carbon plate is provided between the two U-shaped blocks, and the upper and lower ends of the activated carbon plate are movably connected to the interior of the corresponding U-shaped block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. By installing an air intake pipe, two spray pipes, a guide ring block, a connecting block, and a baffle, the system achieves a double spray denitrification effect on brick kiln flue gas. The air intake pipe introduces the flue gas into the treatment tank, where it is first initially denitrified by the mixed solvent sprayed from the lower spray pipe. Then, as it rises, the guide ring block guides the preliminarily denitrified flue gas into the baffle. The baffle reduces the flue gas's flow rate, allowing the flue gas to rise through the gap between the baffle and the inner wall of the treatment tank before being sprayed again by the upper spray pipe for denitrification. This effectively removes nitrogen oxides from the flue gas, reducing its environmental pollution.

[0015] 2. By providing an exhaust pipe, filter, stopper, and disassembly mechanism (auxiliary block, fixed block, fixed slot, and paddle), impurities in the exhaust gas can be easily filtered and the filter can be cleaned. The exhaust pipe is the exhaust channel for the flue gas, and the filter can effectively intercept impurities in the flue gas, ensuring the purity of the exhaust gas. The stopper restricts the position of the filter, preventing it from penetrating too deep into the exhaust pipe and facilitating its removal. If the filter becomes excessively clogged with impurities due to long-term use, the paddle can be used to deform the auxiliary block and disengage the fixed block from the fixed slot, allowing the filter to be easily removed for cleaning. After cleaning, it can be reinstalled and used again, ensuring the long-term effectiveness of the filtering function.

[0016] 3. By installing a U-shaped block and activated carbon plate, toxic gases in the denitrified flue gas are effectively adsorbed. Inside the exhaust pipe, the activated carbon plate is movably mounted on the side of the filter screen near the treatment tank via the U-shaped block. As the flue gas passes through, the activated carbon plate absorbs toxic gases, such as sulfur dioxide, further purifying the flue gas, ensuring exhaust gas safety and minimizing harm to the surrounding environment and human health. The activated carbon plate can be easily replaced when cleaning the filter screen, ensuring a continuous and stable adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 This is a half-section schematic diagram of the utility model;

[0019] Figure 3 This is a half-section schematic diagram of the exhaust pipe of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembly of the filter screen of the utility model;

[0021] Figure 5 For this utility model Figure 3 Enlarged view of point A in the middle.

[0022] In the figure: 1. Treatment tank; 2. Support leg; 3. Air inlet pipe; 4. Exhaust pipe; 5. Drain pipe; 6. Water tank; 7. Water inlet pipe; 8. Spray pipe; 9. Nozzle; 10. Guide ring block; 11. Connecting block; 12. Baffle; 13. Filter; 14. Limit block; 15. Auxiliary block; 16. Fixed block; 17. Fixed groove; 18. Paddle; 19. U-shaped block; 20. Activated carbon plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention must go beyond these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0024] Figures 1 to 5 This is the best embodiment of the present invention, Figures 1 to 5 The utility model is further described.

[0025] A smoke treatment device for a brick kiln comprises a treatment tank 1 and three supporting legs 2 fixedly mounted at the bottom of the treatment tank 1. An air inlet pipe 3 is provided at the lower end of the outer wall of the treatment tank 1. A drain pipe 5 is fixedly connected to the bottom of the treatment tank 1. A one-way valve is installed on the drain pipe 5. An exhaust pipe 4 is fixedly connected to the top of the treatment tank 1. The air inlet pipe 3, the exhaust pipe 4 and the drain pipe 5 are all connected to the interior of the treatment tank 1. Two spray pipes 8 are fixedly mounted inside the treatment tank 1. The air inlet pipe 3 is located below the two spray pipes 8. A one-way valve is installed on the two spray pipes 8. It is equipped with several nozzles 9, and a water tank 6 is provided on the outside of the treatment tank 1. The water tank 6 stores a mixed solvent for denitrifying the smoke from the brick kiln. The water tank 6 is connected to the two spray pipes 8 through the water inlet pipe 7. A guide ring block 10 is fixedly installed inside the treatment tank 1. A connecting block 11 is fixedly connected to the top of the guide ring block 10 inside the treatment tank 1. A baffle 12 is fixedly connected to the lower wall of the connecting block 11 at the position corresponding to the guide ring block 10. A filter screen 13 is movably connected to the inside of the exhaust pipe 4, and a disassembly mechanism is provided on the filter screen 13.

[0026] The stability of the treatment tank 1 during use is ensured by three supporting legs 2 installed at the bottom of the treatment tank 1. When in use, the flue gas generated by the brick kiln operation will enter the interior of the treatment tank 1 through the air inlet pipe 3. After entering the interior of the treatment tank 1, the flue gas moves from bottom to top. At this time, the mixed solvent inside the water tank 6 is transported to the interior of the two spray pipes 8 through the water inlet pipe 7. The two spray pipes 8 spray the mixed solvent through several nozzles 9 thereon, thereby achieving the effect of spraying out the flue gas. The purified flue gas can then be discharged from the interior of the treatment tank 1 through the exhaust pipe 4, and the excess wastewater inside the treatment tank 1 can be discharged from the interior of the treatment tank 1 through the drain pipe 5. At the same time, the filter 13 inside the exhaust pipe 4 can filter impurities in the discharged flue gas.

[0027] The guide ring block 10 is a ring-shaped block, and the diameter of the inner ring at the upper end opening of the guide ring block 10 is smaller than the size between the inner rings at the upper and lower end openings of the guide ring block 10. The baffle 12 is a semi-spherical plate. The edge of the baffle 12 does not contact the inner wall surface of the processing tank 1, and the cross-section of the baffle 12 is arc-shaped. The position of the upper end opening of the guide ring block 10 corresponds to the position inside the baffle 12.

[0028] The guide ring block 10 , the connecting block 11 and the baffle 12 are all located between the two spray pipes 8 .

[0029] First, since the guide ring block 10, the connecting block 11 and the baffle 12 are all located between the two spray pipes 8, the flue gas entering the treatment tank 1 through the air inlet pipe 3 will first undergo preliminary denitrification treatment by the mixed solvent discharged from the lower spray pipe 8, and then the flue gas after the preliminary denitrification treatment will pass through the guide ring block 10 as it continues to rise. Since the diameter of the inner ring at the upper end opening of the guide ring block 10 is smaller than the size between the inner rings at the upper and lower end openings of the guide ring block 10, and the position of the upper end opening of the guide ring block 10 corresponds to the position inside the baffle 12, the guide ring block 10 will guide the flue gas after the preliminary denitrification treatment to the inside of the baffle 12. At this time, the baffle 12 will have a blocking effect on the flue gas after the preliminary denitrification treatment, forcing its flow rate to slow down, and when it continues to rise through the gap between the baffle 12 and the inner wall of the treatment tank 1, it will be subjected to secondary denitrification treatment by the mixed solvent sprayed from the upper spray pipe 8, thereby greatly improving the denitrification and purification effect of the brick kiln flue gas.

[0030] The disassembly mechanism includes an auxiliary block 15, a fixed block 16, a fixed groove 17 and a paddle 18. Two auxiliary blocks 15 are symmetrically installed on the upper and lower sides of the wall surface of the filter 13 away from the treatment tank 1. The two auxiliary blocks 15 are both elastic blocks. The two auxiliary blocks 15 are fixedly installed with a fixed block 16 on one end of the wall surface away from each other and away from the filter 13. The inner wall surface of the exhaust pipe 4 is provided with a fixing groove 17 at the position corresponding to the two fixed blocks 16. The internal shape and size of the fixing groove 17 are adapted to the shape and size of the fixing block 16. The fixing block 16 is movably connected to the inside of the fixing groove 17. The two auxiliary blocks 15 are fixedly installed with a paddle 18 on one end of the wall surface away from the filter 13 on the side close to each other. The two paddles 18 are both arc-shaped blocks.

[0031] When in use, after the fixing block 16 is movably connected to the inside of the corresponding fixing groove 17, it can limit the position of the filter 13. When the impurities attached to the filter 13 become too much and affect its use as the use time increases, the staff can buckle the two paddles 18 to move the two paddles 18 toward the side close to each other. At this time, the two auxiliary blocks 15 are deformed by the force, thereby causing the fixing block 16 to separate from the inside of the corresponding fixing groove 17. At this time, the filter 13 can be taken out by pulling the paddles 18 outward, thereby cleaning the impurities on the filter 13. After cleaning, the filter 13 can be pushed into the exhaust pipe 4 again for use. The operation is simple, convenient and practical.

[0032] Limit blocks 14 are symmetrically installed on the upper and lower walls of the exhaust pipe 4 corresponding to the position of the filter 13. The two limit blocks 14 are in contact with the side wall close to the filter 13 and the side wall adjacent to the filter 13. Two U-shaped blocks 19 are symmetrically installed on the upper and lower sides of the side wall of the filter 13 close to the treatment tank 1.

[0033] The two limiting blocks 14 can limit the position of the filter 13 to prevent the filter 13 from excessively entering the interior of the exhaust pipe 4 , thereby facilitating the removal and installation of the filter 13 .

[0034] A movable activated carbon plate 20 is provided between the two U-shaped blocks 19 , and the upper and lower ends of the activated carbon plate 20 are movably engaged with the interior of the corresponding U-shaped block 19 .

[0035] The activated carbon plate 20 installed between the two U-shaped blocks 19 can adsorb toxic gases in the flue gas that has undergone denitrification treatment, thereby ensuring the safety of the exhaust gas. The activated carbon plate 20 is movably installed, which is convenient for replacement when cleaning the filter 13.

[0036] Working principle:

[0037] First, since the guide ring block 10, the connecting block 11 and the baffle 12 are all located between the two spray pipes 8, the flue gas entering the treatment tank 1 through the air inlet pipe 3 will first undergo preliminary denitrification treatment by the mixed solvent discharged from the lower spray pipe 8, and then the flue gas after the preliminary denitrification treatment will pass through the guide ring block 10 as it continues to rise. Since the diameter of the inner ring at the upper end opening of the guide ring block 10 is smaller than the size between the inner rings at the upper and lower end openings of the guide ring block 10, and the position of the upper end opening of the guide ring block 10 corresponds to the position inside the baffle 12, the guide ring block 10 will guide the flue gas after the preliminary denitrification treatment to the inside of the baffle 12. At this time, the baffle 12 will have a blocking effect on the flue gas after the preliminary denitrification treatment, forcing its flow rate to slow down, and when it continues to rise through the gap between the baffle 12 and the inner wall of the treatment tank 1, it will be subjected to secondary denitrification treatment by the mixed solvent sprayed from the upper spray pipe 8, thereby greatly improving the denitrification and purification effect of the brick kiln flue gas.

[0038] When in use, after the fixing block 16 is movably connected to the inside of the corresponding fixing groove 17, it can limit the position of the filter 13. When the impurities attached to the filter 13 become too much and affect its use as the use time increases, the staff can buckle the two paddles 18 to move the two paddles 18 toward the side close to each other. At this time, the two auxiliary blocks 15 are deformed by the force, thereby causing the fixing block 16 to separate from the inside of the corresponding fixing groove 17. At this time, the filter 13 can be taken out by pulling the paddles 18 outward, thereby cleaning the impurities on the filter 13. After cleaning, the filter 13 can be pushed into the exhaust pipe 4 again for use. The operation is simple, convenient and practical.

[0039] The activated carbon plate 20 installed between the two U-shaped blocks 19 can adsorb toxic gases in the flue gas that has undergone denitrification treatment, thereby ensuring the safety of the exhaust gas. The activated carbon plate 20 is movably installed, which is convenient for replacement when cleaning the filter 13.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modification, equivalent variation, or modification of the above embodiment that does not depart from the technical content of the present invention and is based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A smoke treatment device for a brick kiln, comprising a treatment tank (1) and three supporting legs (2) fixedly mounted on the bottom of the treatment tank (1), an air inlet pipe (3) being provided at the lower end of the outer wall of the treatment tank (1), a drainage pipe (5) being fixedly connected to the bottom of the treatment tank (1), an exhaust pipe (4) being fixedly connected to the top of the treatment tank (1), the air inlet pipe (3), the exhaust pipe (4) and the drainage pipe (5) being all in communication with the interior of the treatment tank (1), characterized in that: Two spray pipes (8) are fixedly installed inside the treatment tank (1), and a plurality of spray heads (9) are installed on each of the two spray pipes (8). A water tank (6) is provided on the outside of the treatment tank (1), and the water tank (6) is connected to the two spray pipes (8) through a water inlet pipe (7). A guide ring block (10) is fixedly installed inside the treatment tank (1), and a connecting block (11) is fixedly connected to the inside of the treatment tank (1) above the guide ring block (10). A baffle (12) is fixedly connected to the lower wall surface of the connecting block (11) at a position corresponding to the guide ring block (10). A filter screen (13) is movably connected to the inside of the exhaust pipe (4), and a disassembly mechanism is provided on the filter screen (13).

2. A flue gas treatment device for a brick kiln according to claim 1, characterized in that: The guide ring block (10) is a ring-shaped block, and the diameter of the inner ring at the upper end opening of the guide ring block (10) is smaller than the size between the inner rings at the upper and lower end openings of the guide ring block (10). The baffle (12) is a semi-spherical plate, and the cross-section of the baffle (12) is arc-shaped. The position of the upper end opening of the guide ring block (10) corresponds to the position inside the baffle (12).

3. The smoke treatment device for a brick kiln according to claim 2, characterized in that: The guide ring block (10), the connecting block (11) and the baffle (12) are all located between the two spray pipes (8).

4. The smoke treatment device for a brick kiln according to claim 1, characterized in that: The disassembly mechanism comprises an auxiliary block (15), a fixed block (16), a fixed groove (17) and a paddle (18). Two auxiliary blocks (15) are symmetrically installed on the side wall of the filter (13) away from the treatment tank (1). Both of the two auxiliary blocks (15) are elastic blocks. The ends of the side walls of the two auxiliary blocks (15) away from each other and away from the filter (13) are fixedly installed with a fixed block (16). The inner wall surface of the exhaust pipe (4) is provided with a fixed groove (17) at positions corresponding to the two fixed blocks (16). The internal shape and size of the fixed groove (17) are adapted to the shape and size of the fixed block (16). The fixed block (16) is movably connected to the inside of the fixed groove (17). The ends of the side walls of the two auxiliary blocks (15) close to each other and away from the filter (13) are fixedly installed with a paddle (18). Both of the paddles (18) are arc-shaped blocks.

5. The smoke treatment device for a brick kiln according to claim 1, characterized in that: Limiting blocks (14) are symmetrically installed on the upper and lower side walls of the interior of the exhaust pipe (4) corresponding to the position of the filter (13), and the side wall of the two limiting blocks (14) close to the filter (13) is in contact with the side wall adjacent to the filter (13). Two U-shaped clamping blocks (19) are symmetrically installed on the upper and lower sides of the side wall of the filter (13) close to the treatment tank (1).

6. The smoke treatment device for a brick kiln according to claim 5, characterized in that: A movable activated carbon plate (20) is provided between the two U-shaped blocks (19), and the upper and lower ends of the activated carbon plate (20) are respectively movably engaged with the interior of the corresponding U-shaped block (19).

Images