Mobile waste gas desulfurization and denitrification treatment equipment and treatment method

Abstract

The invention discloses movable waste gas desulfurization and denitrification treatment equipment and a treatment method, and relates to the technical field of waste gas treatment.The equipment comprises a box body, a filtering mechanism, a spraying treatment mechanism and a driving mechanism, a fixed cylinder is installed at one end of the box body, and a gas inlet pipe is installed on the side, away from the box body, of the upper end of the fixed cylinder; an air outlet pipe is installed on the side, away from the fixed cylinder, of the upper end of the box body, a plurality of ceramic filter pipes are horizontally arranged in the box body, and the ends, close to the fixed cylinder, of the ceramic filter pipes penetrate through the side wall of the box body to be arranged in the fixed cylinder. The moving block drives the annular liquid guide pipe to reciprocate, so that a catalyst and an adsorbent are uniformly sprayed on the side wall of the ceramic filter pipe by a spray head on the annular liquid guide pipe, the waste gas treatment efficiency of the catalyst and the adsorbent on the side wall of the ceramic filter pipe is improved, meanwhile, flue gas is filtered through the filter plate, and smooth treatment of the waste gas is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a mobile waste gas desulfurization and denitrification treatment device and a treatment method. Background Art

[0002] With the increase in the amount of solid waste combustion and treatment such as medical waste, kitchen waste, and biomass fuels, the sulfides and nitrides contained in the flue gas will cause secondary pollution to the environment if they are discharged directly into the atmosphere without treatment. Most large enterprises that burn solid waste are equipped with corresponding desulfurization and denitrification treatment processes, but small incineration plants sometimes do not have the financial conditions and often miss this step. Therefore, it is of great significance to design a low-cost desulfurization and denitrification equipment suitable for small incineration plants.

[0003] In view of the above problems, an improved mobile exhaust gas desulfurization and denitrification treatment equipment and treatment method are now designed. Summary of the invention

[0004] The object of the present invention is to provide a mobile exhaust gas desulfurization and denitrification treatment device and a treatment method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A mobile exhaust gas desulfurization and denitrification treatment equipment comprises a casing, a filtering mechanism, a spraying treatment mechanism and a driving mechanism, a fixed cylinder is installed at one end of the casing, an air inlet pipe is installed on the side of the upper end of the fixed cylinder away from the casing, an air outlet pipe is installed on the side of the upper end of the casing away from the fixed cylinder, an exhaust pump is installed on the air outlet pipe, a plurality of ceramic filter tubes for treating exhaust gas are horizontally arranged inside the casing, the end of the ceramic filter tube away from the fixed cylinder is installed on the inner wall of the casing, the end of the ceramic filter tube close to the fixed cylinder passes through the side wall of the casing and is arranged inside the fixed cylinder, a catalyst storage box and an adsorbent storage box are installed at the lower end of the casing.

[0007] The filtering mechanism is arranged inside the fixed cylinder and is used to filter the solid particles in the smoke, so as to facilitate further processing of the smoke.

[0008] The spraying treatment mechanism is arranged inside the box body, and is used for spraying the catalyst and the adsorbent onto the ceramic filter tube, so as to achieve desulfurization and denitrification treatment of the exhaust gas when the exhaust gas passes through the ceramic filter tube.

[0009] The driving mechanism is arranged on the box body and is used for driving the filtering mechanism and the spraying treatment mechanism to work simultaneously.

[0010] As a further solution of the present invention: the driving mechanism includes a motor, which is installed on the side wall of the box away from the fixed cylinder, and a rotating rod is installed at the output end of the motor. One end of the rotating rod away from the motor passes through the side wall of the box and is rotatably connected to the inner wall of the fixed cylinder. A reciprocating screw is installed on the side wall of the rotating rod inside the box, and the side wall of the reciprocating screw is rotatably connected to a moving block through a thread.

[0011] As a further solution of the present invention: the filtering mechanism includes a plurality of filter plates, which are vertically mounted on the inner wall of the fixed cylinder between the ceramic filter tube and the air inlet pipe, and the center position of the filter plate is rotatably sleeved on the side wall of the rotating rod, and an L-shaped cleaning plate for cleaning solid particles on the filter plate is installed on the side wall of the rotating rod away from the side of the filter plate, and a slag discharge port for outputting solid particles cleaned by the L-shaped cleaning plate is provided at the bottom of the fixed cylinder away from the side of the box at the lower end of the filter plate, and a collecting frame for collecting solid particles is installed at the lower end of the fixed cylinder, and a sealing door for the staff to clean the solid particles is provided on the side wall of the collecting frame.

[0012] As a further solution of the present invention: the apertures of the filter holes of the plurality of filter plates increase in sequence from the box body to the fixed cylinder.

[0013] As a further scheme of the present invention: the spraying treatment mechanism includes two liquid guide frames, the liquid guide frames are installed on the side walls of the moving block, and connecting tubes corresponding to the ceramic filter tubes are installed on the side walls of the liquid guide frames, and an annular liquid guide tube is installed at the end of the connecting tube away from the liquid guide frame, and the annular liquid guide tube is sleeved on the corresponding ceramic filter tube, and a plurality of support columns are installed in a circular array on the side wall of the annular liquid guide tube close to the ceramic filter tube, and a ball is installed at the end of the support column away from the annular liquid guide tube, and the end of the ball rolls on the side wall of the ceramic filter tube away from the support column, and a plurality of nozzles are installed in a circular array on the side wall of the annular liquid guide tube close to the ceramic filter tube, so that the nozzles can evenly spray the catalyst and adsorbent on the side wall of the ceramic filter tube, so as to facilitate the treatment of the exhaust gas.

[0014] A delivery pipe is installed at the lower end of the liquid guiding frame, and the ends of the two delivery pipes away from the liquid guiding frame pass through the box body and are respectively arranged at the bottom of the adsorbent storage box and the bottom of the catalyst storage box. A water pump for outputting liquid is installed on the delivery pipe, and a portion of the delivery pipe inside the box body has surplus pipe body to facilitate the horizontal movement of the liquid guiding frame.

[0015] As a further solution of the present invention: reinforcing ribs for improving structural strength are installed on the side walls of the connecting tube and the annular liquid guiding tube.

[0016] As a further solution of the present invention: a filter cover for filtering is installed at the input end of the delivery pipe.

[0017] As a further solution of the present invention: the liquid guiding frame is detachably connected to the moving block by screws.

[0018] As a further solution of the present invention: rollers are installed at the lower ends of the adsorbent storage box, the catalyst storage box and the collection frame to facilitate the movement of the equipment.

[0019] A method for using a mobile exhaust gas desulfurization and denitrification treatment device comprises the following steps:

[0020] Step 1: Start the water pump, which transports the catalyst and adsorbent to the inside of the liquid guide frame through the delivery pipe. The liquid guide frame transports the catalyst and adsorbent to the inside of the annular liquid guide pipe through the connecting pipe. The annular liquid guide pipe sprays the catalyst and adsorbent on the side wall of the ceramic filter tube through the nozzle.

[0021] Step 2: Start the motor. The output end of the motor drives the rotating rod to rotate. The rotating rod drives the reciprocating screw and the L-shaped cleaning plate to rotate. The L-shaped cleaning plate cleans the solid particles on the filter plate. The solid particles enter the collection frame through the slag discharge port to achieve the processing of the solid particles.

[0022] Under the action of the thread, the reciprocating screw drives the moving block to move reciprocatingly, the moving block drives the liquid guide frame to move, the liquid guide frame drives the connecting pipe to move, the connecting pipe drives the annular liquid guide pipe to move, and the annular liquid guide pipe drives the nozzle to move, so that the nozzle sprays the catalyst and adsorbent evenly on the side wall of the ceramic filter tube.

[0023] Step three: The flue gas is input through the air inlet pipe, and the flue gas passes through several filter plates for filtration. After passing through the filter plates, the flue gas enters the interior of the ceramic filter tube, and then passes through the ceramic filter tube into the interior of the box. During this process, the catalyst and adsorbent attached to the ceramic filter tube will treat the exhaust gas. The treated exhaust gas enters the interior of the box and is then discharged through the exhaust pipe.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The invention has a compact structure and a small volume, and is convenient for carrying and moving the equipment. Meanwhile, the equipment has a low cost and can be adapted to the production of small incineration plants.

[0026] The present invention drives the moving block to move back and forth through a reciprocating screw, and the moving block drives the annular liquid guiding tube to move back and forth, so that the nozzle on the annular liquid guiding tube sprays the catalyst and the adsorbent evenly on the side wall of the ceramic filter tube, and the spraying is continuously performed, thereby improving the treatment efficiency of the catalyst and the adsorbent on the side wall of the ceramic filter tube for exhaust gas.

[0027] At the same time, the flue gas is filtered through the filter plate first to prevent solid impurities in the flue gas from affecting the output of the exhaust gas by the ceramic filter tube, thereby ensuring smooth processing of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention.

[0029] Figure 2 It is a cross-sectional view of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the driving mechanism in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the spraying treatment mechanism in the present invention.

[0032] Figure 5 It is a structural schematic diagram of the L-shaped cleaning plate in the present invention.

[0033] Among them: 1. Box body; 2. Air outlet pipe; 3. Ceramic filter tube; 4. Moving block; 5. Annular liquid guide tube; 6. Liquid guide frame; 7. Reciprocating screw; 8. Filter plate; 9. Fixed cylinder; 10. Air inlet pipe; 11. Rotating rod; 12. Collecting frame; 13. Slag outlet; 14. Catalyst storage box; 15. Adsorbent storage box; 16. Delivery pipe; 17. Water pump; 18. Motor; 19. Exhaust pump; 20. Sealing door; 21. Connecting pipe; 22. L-shaped cleaning plate; 23. Support column; 24. Ball bearing; 25. Nozzle. DETAILED DESCRIPTION

[0034] 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.

[0035] See also Figure 1-Figure 5 In an embodiment of the present invention, a mobile exhaust gas desulfurization and denitrification treatment equipment includes a housing 1, a filtering mechanism, a spraying treatment mechanism and a driving mechanism. A fixed cylinder 9 is installed at one end of the housing 1, and an air inlet pipe 10 is installed on the side of the upper end of the fixed cylinder 9 away from the housing 1. An exhaust pipe 2 is installed on the side of the upper end of the housing 1 away from the fixed cylinder 9, and an exhaust pump 19 is installed on the exhaust pipe 2. Several ceramic filter tubes 3 for treating exhaust gas are horizontally arranged inside the housing 1, and one end of the ceramic filter tube 3 away from the fixed cylinder 9 is installed on the inner wall of the housing 1, and one end of the ceramic filter tube 3 close to the fixed cylinder 9 passes through the side wall of the housing 1 and is arranged inside the fixed cylinder 9. A catalyst storage box 14 and an adsorbent storage box 15 are installed at the lower end of the housing 1.

[0036] The filtering mechanism is arranged inside the fixed cylinder 9 and is used to filter the solid particles in the flue gas, so as to facilitate further processing of the flue gas.

[0037] The spraying treatment mechanism is arranged inside the box body 1 and is used to spray the catalyst and the adsorbent onto the ceramic filter tube 3 , so as to achieve desulfurization and denitrification treatment of the exhaust gas when the exhaust gas passes through the ceramic filter tube 3 .

[0038] The driving mechanism is arranged on the box body 1, and is used to drive the filtering mechanism and the spraying treatment mechanism to work simultaneously.

[0039] The driving mechanism includes a motor 18, which is installed on the side wall of the box 1 away from the fixed cylinder 9. A rotating rod 11 is installed at the output end of the motor 18. One end of the rotating rod 11 away from the motor 18 passes through the side wall of the box 1 and is rotatably connected to the inner wall of the fixed cylinder 9. A reciprocating screw 7 is installed on the side wall of the rotating rod 11 inside the box 1, and the side wall of the reciprocating screw 7 is rotatably connected to the moving block 4 through a thread.

[0040] The filtering mechanism includes a plurality of filter plates 8, which are vertically mounted on the inner wall of a fixed cylinder 9 between the ceramic filter tube 3 and the air inlet pipe 10. The center position of the filter plate 8 is rotatably sleeved on the side wall of a rotating rod 11. An L-shaped cleaning plate 22 for cleaning solid particles on the filter plate 8 is installed on the side wall of the rotating rod 11 on the side of the filter plate 8 away from the box body 1. A slag discharge port 13 for outputting solid particles cleaned by the L-shaped cleaning plate 22 is provided at the bottom of the fixed cylinder 9 on the side of the box body 1 on the lower end of the filter plate 8. A collecting frame 12 for collecting solid particles is installed at the lower end of the fixed cylinder 9. A sealing door 20 is provided on the side wall of the collecting frame 12 to facilitate the staff to clean the solid particles.

[0041] The spraying treatment mechanism includes two liquid guide frames 6, which are installed on the side walls of the moving block 4. Connecting pipes 21 corresponding to the ceramic filter tubes 3 are installed on the side walls of the liquid guide frames 6. An annular liquid guide tube 5 is installed at one end of the connecting tube 21 away from the liquid guide frame 6. The annular liquid guide tube 5 is sleeved on the corresponding ceramic filter tube 3. A plurality of support columns 23 are installed in a circular array on the side wall of the annular liquid guide tube 5 close to the ceramic filter tube 3. A ball 24 is installed at one end of the support column 23 away from the annular liquid guide tube 5. The end of the ball 24 away from the support column 23 rolls on the side wall of the ceramic filter tube 3. A plurality of nozzles 25 are installed in a circular array on the side wall of the annular liquid guide tube 5 close to the ceramic filter tube 3, so that the nozzles 25 can evenly spray the catalyst and adsorbent on the side wall of the ceramic filter tube 3, so as to facilitate the treatment of the exhaust gas.

[0042] A delivery pipe 16 is installed at the lower end of the liquid guiding frame 6, and the ends of the two delivery pipes 16 away from the liquid guiding frame 6 pass through the box body 1 and are respectively arranged at the bottom of the adsorbent storage box 15 and the bottom of the catalyst storage box 14. A water pump 17 for outputting liquid is installed on the delivery pipe 16, and a portion of the delivery pipe 16 inside the box body 1 has a surplus pipe body to facilitate the horizontal movement of the liquid guiding frame 6.

[0043] When in use, start the water pump 17, which delivers the catalyst and adsorbent to the interior of the liquid guide frame 6 through the delivery pipe 16. The liquid guide frame 6 delivers the catalyst and adsorbent to the interior of the annular liquid guide pipe 5 through the connecting pipe 21. The annular liquid guide pipe 5 sprays the catalyst and adsorbent onto the side wall of the ceramic filter tube 3 through the nozzle 25.

[0044] At the same time, the motor 18 is started, and the output end of the motor 18 drives the rotating rod 11 to rotate, and the rotating rod 11 drives the reciprocating screw 7 and the L-shaped cleaning plate 22 to rotate. The L-shaped cleaning plate 22 cleans the solid particles on the filter plate 8, and the solid particles enter the interior of the collecting frame 12 through the slag discharge port 13 to realize the processing of the solid particles.

[0045] Under the action of the thread, the reciprocating screw 7 drives the moving block 4 to move reciprocatingly, the moving block 4 drives the liquid guide frame 6 to move, the liquid guide frame 6 drives the connecting tube 21 to move, the connecting tube 21 drives the annular liquid guide tube 5 to move, and the annular liquid guide tube 5 drives the nozzle 25 to move, so that the nozzle 25 evenly sprays the catalyst and adsorbent on the side wall of the ceramic filter tube 3.

[0046] Then the flue gas is input through the air inlet pipe 10, and the flue gas passes through several filter plates 8 for filtering. After passing through the filter plates 8, the flue gas enters the interior of the ceramic filter tube 3, and the flue gas passes through the ceramic filter tube 3 and enters the interior of the box 1. During this process, the catalyst and adsorbent attached to the ceramic filter tube 3 will treat the exhaust gas, and the treated exhaust gas enters the interior of the box 1, and then is discharged through the exhaust pipe 2.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A mobile exhaust gas desulfurization and denitrification treatment device, comprising a housing (1), a filtering mechanism, a spraying treatment mechanism and a driving mechanism, wherein a fixed cylinder (9) is installed at one end of the housing (1), an air inlet pipe (10) is installed on the side of the upper end of the fixed cylinder (9) away from the housing (1), an air outlet pipe (2) is installed on the side of the upper end of the housing (1) away from the fixed cylinder (9), and an exhaust pump (19) is installed on the air outlet pipe (2), characterized in that: A plurality of ceramic filter tubes (3) for treating exhaust gas are horizontally arranged inside the box (1); one end of the ceramic filter tube (3) away from the fixed cylinder (9) is mounted on the inner wall of the box (1); one end of the ceramic filter tube (3) close to the fixed cylinder (9) passes through the side wall of the box (1) and is arranged inside the fixed cylinder (9); a catalyst storage box (14) and an adsorbent storage box (15) are mounted at the lower end of the box (1); The filtering mechanism is arranged inside the fixed cylinder (9) and is used to filter solid particles in the smoke, so as to facilitate further processing of the smoke; The spraying treatment mechanism is arranged inside the box (1) and is used to spray the catalyst and the adsorbent onto the ceramic filter tube (3), so as to achieve desulfurization and denitrification treatment of the waste gas when the waste gas passes through the ceramic filter tube (3); The driving mechanism is arranged on the box body (1) and is used to drive the filtering mechanism and the spraying treatment mechanism to work simultaneously.

2. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 1 is characterized in that: The driving mechanism comprises a motor (18), the motor (18) being mounted on a side wall of a box body (1) away from a fixed cylinder (9), a rotating rod (11) being mounted on an output end of the motor (18), an end of the rotating rod (11) away from the motor (18) passing through the side wall of the box body (1) and being rotatably connected to an inner wall of the fixed cylinder (9), a reciprocating screw (7) being mounted on the side wall of the rotating rod (11) inside the box body (1), and a moving block (4) being rotatably connected to the side wall of the reciprocating screw (7) via a thread.

3. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 2 is characterized in that: The filtering mechanism comprises a plurality of filter plates (8), wherein the filter plates (8) are vertically mounted on the inner wall of a fixed cylinder (9) between the ceramic filter tube (3) and the air inlet pipe (10), the center position of the filter plate (8) is rotatably sleeved on the side wall of a rotating rod (11), an L-shaped cleaning plate (22) for cleaning solid particles on the filter plate (8) is mounted on the side wall of the rotating rod (11) on the side of the filter plate (8) away from the housing (1), a slag discharge port (13) for outputting solid particles cleaned by the L-shaped cleaning plate (22) is provided at the bottom of the fixed cylinder (9) on the side of the lower end of the filter plate (8) away from the housing (1), a collecting frame (12) for collecting solid particles is mounted at the lower end of the fixed cylinder (9), and a sealing door (20) is provided on the side wall of the collecting frame (12) for facilitating the cleaning of solid particles by staff.

4. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 3 is characterized in that: The diameters of the filter holes of the plurality of filter plates (8) increase in sequence from the box body (1) to the fixed cylinder (9).

5. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 2 is characterized in that: The spraying treatment mechanism comprises two liquid guide frames (6), the liquid guide frames (6) being mounted on the side walls of the moving block (4), the side walls of the liquid guide frames (6) being mounted with connecting pipes (21) corresponding to the ceramic filter tubes (3), the end of the connecting pipe (21) away from the liquid guide frame (6) being mounted with an annular liquid guide tube (5), the annular liquid guide tube (5) being sleeved on the corresponding ceramic filter tube (3), the side walls of the annular liquid guide tube (5) being close to the ceramic filter tube (3) being mounted with a plurality of supporting columns (23) in a circumferential array, the end of the supporting column (23) being away from the annular liquid guide tube (5) being mounted with a ball (24), the end of the ball (24) being away from the supporting column (23) rolling on the side wall of the ceramic filter tube (3), the side walls of the annular liquid guide tube (5) being close to the ceramic filter tube (3) being mounted with a plurality of nozzles (25) in a circumferential array; A delivery pipe (16) is installed at the lower end of the liquid guide frame (6), and the ends of the two delivery pipes (16) away from the liquid guide frame (6) pass through the box body (1) and are respectively arranged at the bottom of the adsorbent storage box (15) and the bottom of the catalyst storage box (14). A water pump (17) for outputting liquid is installed on the delivery pipe (16), and a part of the delivery pipe (16) inside the box body (1) is left over to facilitate the horizontal movement of the liquid guide frame (6). (There is no problem here, it means that there is a longer pipe so that it is easy to move).

6. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 5, characterized in that: Reinforcement ribs for improving structural strength are installed on the side walls of the connecting tube (21) and the annular liquid guiding tube (5).

7. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 5, characterized in that: The input end of the delivery pipe (16) is equipped with a filter cover for filtering.

8. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 5, characterized in that: The liquid guiding frame (6) is detachably connected to the moving block (4) via screws.

9. The mobile exhaust gas desulfurization and denitrification treatment equipment according to claim 3, characterized in that: Rollers are installed at the lower ends of the adsorbent storage box (15), the catalyst storage box (14) and the collection frame (12) to facilitate the movement of the equipment.

10. A method for treating a mobile exhaust gas desulfurization and denitrification treatment device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Start the water pump (17), the water pump (17) transports the catalyst and the adsorbent to the inside of the liquid guide frame (6) through the delivery pipe (16), the liquid guide frame (6) transports the catalyst and the adsorbent to the inside of the annular liquid guide pipe (5) through the connecting pipe (21), and the annular liquid guide pipe (5) sprays the catalyst and the adsorbent on the side wall of the ceramic filter tube (3) through the nozzle (25); Step 2: starting the motor (18), the output end of the motor (18) drives the rotating rod (11) to rotate, the rotating rod (11) drives the reciprocating screw (7) and the L-shaped cleaning plate (22) to rotate, the L-shaped cleaning plate (22) cleans the solid particles on the filter plate (8), and the solid particles enter the interior of the collection frame (12) through the slag discharge port (13), thereby realizing the processing of the solid particles; Under the action of the screw thread, the reciprocating screw (7) drives the moving block (4) to move reciprocatingly, the moving block (4) drives the liquid guide frame (6) to move, the liquid guide frame (6) drives the connecting pipe (21) to move, the connecting pipe (21) drives the annular liquid guide pipe (5) to move, and the annular liquid guide pipe (5) drives the nozzle (25) to move, so that the nozzle (25) evenly sprays the catalyst and the adsorbent on the side wall of the ceramic filter tube (3); Step 3: Flue gas is input through the air inlet pipe (10), and the flue gas passes through a plurality of filter plates (8) for filtering. After passing through the filter plates (8), the flue gas enters the interior of the ceramic filter tube (3), and the flue gas passes through the ceramic filter tube (3) and enters the interior of the box (1). During this process, the catalyst and adsorbent attached to the ceramic filter tube (3) will treat the exhaust gas, and the treated exhaust gas enters the interior of the box (1), and then is discharged through the exhaust pipe (2).

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