Denitration, desulfurization and dust removal device for combustion flue gas

Abstract

The utility model discloses a denitration, desulfurization and dust removal device for combustion flue gas, which comprises a dust removal bin main body, and further comprises a dust removal mechanism which is fixedly arranged on the inner wall of the dust removal bin and can be used for removing dust of the combustion flue gas entering the dust removal bin through the dust removal mechanism; the cleaning mechanism is fixedly installed on the inner wall of the dust removal bin, the dust removal mechanism can be cleaned through the cleaning mechanism, the air purification device is provided with the cleaning mechanism, the angle of the scouring plate can be flexibly adjusted through the adjusting part, and therefore the cleaning mechanism can be used for cleaning the dust removal mechanism. The washing plate can spray water at a high speed through the booster pump to wash the filter plates from the air outlet side of each filter plate, so that the dust removal mechanism is more convenient and rapid to clean without dismantling the dust removal bin, the cleaning efficiency of the dust removal mechanism is improved to a certain extent, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the field of air purification devices, in particular to a denitration, desulfurization and dust removal device for combustion flue gas. Background Art

[0002] Status and problems of combustion flue gas treatment: At present, most of my country's primary energy comes from coal burning, and the combustion of coal will inevitably produce harmful gases such as particulate matter, nitric oxide, nitrogen dioxide, sulfur dioxide, etc., which pollute the environment. The dust removal, denitrification and desulfurization tower is an integrated equipment of coal-fired flue gas dust collector, denitrification equipment and desulfurization tower. When the existing dust removal, denitrification and desulfurization tower treats the combustion flue gas, it is necessary to first denitrify the flue gas through the denitrification tower, and then cool the flue gas, and then transport the cooled flue gas into the dust removal bin, remove the dust from the flue gas through the dust removal bin, and then transport the flue gas into the desulfurization tower for desulfurization of the flue gas. However, the dust treatment structure inside the existing dust removal, denitrification and desulfurization tower will encounter problems when in use.

[0003] The existing dust removal, denitrification and desulfurization tower has a dust removal device inside which filters the dust inside the flue gas through a multi-stage filter plate. After a long period of operation, the dust will accumulate on the filter plate, clogging the filter holes and affecting the dust removal efficiency of the filter plate. The device needs to be disassembled for cleaning, which is extremely troublesome to clean, increases the workload of the staff, and affects the desulfurization effect of the flue gas. Utility Model Content

[0004] The purpose of the utility model is to provide a denitration, desulfurization and dust removal device for combustion flue gas to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A denitration, desulfurization and dust removal device for combustion flue gas, comprising a dust removal bin main body, and also comprising:

[0007] A dust removal mechanism is fixedly mounted on the inner wall of the dust removal bin body, and the dust removal mechanism can remove dust from the combustion flue gas entering the dust removal bin body;

[0008] A cleaning mechanism is fixedly mounted on the inner wall of the dust removal bin body, and the dust removal mechanism can be cleaned by the cleaning mechanism;

[0009] The dust removal bin main body comprises:

[0010] Dust removal bin;

[0011] The smoke inlet pipe is fixedly installed at the left end of the dust removal bin;

[0012] The exhaust pipe is fixedly installed at the right end of the dust removal bin, and the inner walls of the smoke inlet pipe and the exhaust pipe are fixedly installed with a one-way valve;

[0013] The dust removal mechanism comprises:

[0014] A bottom plate, which is fixedly mounted on the inner wall of the dust removal bin;

[0015] A filter plate group is fixedly mounted on the upper end of the bottom plate, and the filter plate group includes a primary filter plate, a secondary filter plate and a tertiary filter plate;

[0016] The cleaning mechanism comprises:

[0017] A flushing assembly is arranged on one side of the filter plate group, and the filter plate group can be flushed by the flushing assembly;

[0018] A drainage assembly is arranged on the inner wall of the dust removal bin and can drain water through a drainage mechanism;

[0019] The flushing assembly comprises:

[0020] A water tank, which is fixedly installed on the upper end of the dust removal bin;

[0021] A booster pump, which is fixedly installed on the top of the water tank;

[0022] A water inlet pipe, which is fixedly connected to the water tank, and one end of the water inlet pipe away from the water tank is fixedly connected to the water inlet end of the booster pump;

[0023] A water outlet pipe is fixedly connected to the water outlet end of the booster pump.

[0024] Preferably, the flushing assembly further comprises:

[0025] There are three delivery pipes, and all three delivery pipes are fixedly connected to the water outlet pipe.

[0026] A flushing plate is rotatably mounted on the top of the inner wall of the dust removal bin, and the upper end of the flushing plate is fixedly connected to the conveying pipe;

[0027] The adjusting part is fixedly mounted on the upper end of the flushing plate, and the flushing angle of the flushing plate can be flexibly adjusted through the adjusting part.

[0028] Preferably, the adjustment unit comprises:

[0029] A chute is provided on both sides of the upper end of the scouring plate;

[0030] A return spring, which is fixedly mounted on the top of the inner wall of the dust removal bin;

[0031] A slider is fixedly mounted on the lower end of the return spring and slidably mounted on the inner wall of the slide groove;

[0032] A first telescopic rod, which is fixedly mounted on the top of the inner wall of the dust removal bin;

[0033] The abutment block is rotatably mounted on the lower end of the first telescopic rod, and the abutment block abuts against the upper end of the scouring plate.

[0034] Preferably, the drainage assembly comprises:

[0035] Drainage grooves are provided on the inner wall of the bottom plate and are located on both sides of the filter plate group;

[0036] A guide plate, which is fixedly mounted on the inner wall of the drainage trough;

[0037] The blocking block is slidably mounted on the inner wall of the dust removal bin, and the blocking block extends to the upper side of the guide plate.

[0038] Preferably, the drainage component further comprises:

[0039] A sealing ring, which is fixedly mounted on the outer wall of the block;

[0040] A second telescopic rod is fixedly mounted on the inner wall of the dust removal bin, and the second telescopic rod is fixedly connected to a side of the blocking block away from the guide plate;

[0041] The drainage pipe is fixedly installed at the lower end of the dust removal bin.

[0042] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0043] Beneficial effects:

[0044] 1. The utility model is provided with a cleaning mechanism, and the angle of the flushing plate can be flexibly adjusted through the adjustment part. The flushing plate can spray water at high speed from the side of each filter plate where air is discharged to flush the filter plate through the booster pump. The flushing plate can flexibly adjust the angle to reciprocate to flush the filter plate. The sewage flows into the drainage groove through the slopes on both sides of the filter plate and is discharged to the outside of the dust removal bin through the drainage assembly. The utility model flushes the filter plate group more comprehensively, and the flushing plate can flexibly adjust the angle to make the dust removal mechanism cleaning more convenient and quick without dismantling the dust removal bin, which improves the cleaning efficiency of the dust removal mechanism to a certain extent and reduces the labor intensity of the staff;

[0045] 2. The utility model enables the drainage trough to remain sealed when the cleaning mechanism is not in operation through the mutual cooperation of the first telescopic rod, the stop block and the sealing ring, thereby preventing leakage of combustion flue gas during dust removal. The utility model has higher economic benefits and stronger practicality, and to a certain extent improves the dust removal efficiency of the denitrification, desulfurization and dust removal device for combustion flue gas, and improves the denitrification, desulfurization and dust removal efficiency of flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0047] Figure 1It is a structural schematic diagram of a denitrification, desulfurization and dust removal device for combustion flue gas.

[0048] Figure 2 The present invention is a schematic diagram of the structure of a cleaning mechanism in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0049] Figure 3 It is a structural schematic diagram of the regulating part in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0050] Figure 4 The present invention is a schematic diagram of the structure of a flushing component in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0051] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of a part of the front end of a dust removal bin in a denitration, desulfurization and dust removal device for combustion flue gas.

[0052] Figure 6 The present invention is a schematic diagram of the structure of drainage grooves on both sides of a filter plate group in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0053] Figure 7 The figure is a schematic diagram of the structure of a block in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0054] Figure 8 The present invention is a schematic diagram of the structure inside a drainage trough in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0055] Fig. 9 The present invention is a schematic diagram of the installation structure of a block 3175 in a denitrification, desulfurization and dust removal device for combustion flue gas.

[0056] In the figure: dust removal bin body 1; dust removal bin 11; smoke inlet pipe 12; exhaust pipe 13; dust removal mechanism 2; bottom plate 21; filter plate group 22; primary filter plate 221; secondary filter plate 222; tertiary filter plate 223; cleaning mechanism 3; flushing assembly 31; water tank 311; booster pump 312; water inlet pipe 313; water outlet pipe 314; delivery pipe 315; flushing plate 316; adjustment part 317; slide chute 3171; return spring 3172; slider 3173; first telescopic rod 3174; block 3175; drainage assembly 32; drainage trough 321; guide plate 322; block 323; sealing ring 324; second telescopic rod 325; drainage pipe 326. DETAILED DESCRIPTION

[0057] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0058] like Figure 1-9 , including a dust removal bin body 1, and also including: the dust removal bin body 1 includes: a dust removal bin 11, a smoke inlet pipe 12 and an exhaust pipe 13, the dust removal bin 11, the smoke inlet pipe 12, which is fixedly installed at the left end of the dust removal bin 11, the left end of the smoke inlet pipe 12 is fixedly connected to the de-pinning mechanism, the exhaust pipe 13, which is fixedly installed at the right end of the dust removal bin 11, and the inner walls of the smoke inlet pipe 12 and the exhaust pipe 13 are fixedly installed with a one-way valve, the right end of the exhaust pipe 13 is fixedly connected to the desulfurization mechanism, the de-pinning mechanism and the desulfurization mechanism adopt the existing technology,

[0059] The dust removal mechanism 2 is fixedly mounted on the inner wall of the dust removal bin main body 1, and the dust removal mechanism 2 can remove dust from the combustion flue gas entering the dust removal bin main body 1. The dust removal mechanism 2 includes: a bottom plate 21, a filter plate group 22, a primary filter plate 221, a secondary filter plate 222 and a tertiary filter plate 223. The filter hole inside the primary filter plate 221 is larger than the filter hole inside the secondary filter plate 222, and the filter hole inside the tertiary filter plate 223 is larger than the filter hole inside the tertiary filter plate 223. The combustion flue gas enters the dust removal bin 11 through the smoke inlet pipe 12, and the combustion flue gas passes through the primary filter plate 221, the secondary filter plate 222 and the tertiary filter plate 223 in turn, and the flue gas is filtered multiple times through the three filter plates. The bottom plate 21 is fixedly mounted on the inner wall of the dust removal bin 11, and the filter plate group 22 is fixedly mounted on the upper end of the bottom plate 21, and the filter plate group 22 includes a primary filter plate 221, a secondary filter plate 222 and a tertiary filter plate 223.

[0060] The cleaning mechanism 3 is fixedly mounted on the inner wall of the dust removal bin body 1, and the dust removal mechanism 2 can be cleaned by the cleaning mechanism 3. The cleaning mechanism 3 includes: a flushing assembly 31, a water tank 311, a booster pump 312, a water inlet pipe 313, a water outlet pipe 314, a delivery pipe 315, a flushing plate 316, an adjusting portion 317, an adjusting portion 317, a chute 3171, a return spring 3172, a slider 3173, a first telescopic rod 3174, a block 3175, a drainage assembly 32, a drainage groove 321, a guide plate 322, a blocking block 323, a sealing ring 324, a second telescopic rod 325 and a drainage pipe 326. The flushing assembly 31 is arranged on one side of the filter plate group 22, and the filter plate group 22 can be flushed by the flushing assembly 31. The component 31 includes: a water tank 311, which is fixedly installed on the upper end of the dust removal bin 11, a booster pump 312, which is fixedly installed on the top of the water tank 311, a water inlet pipe 313, which is fixedly connected to the water tank 311, and the end of the water inlet pipe 313 away from the water tank 311 is fixedly connected to the water inlet end of the booster pump 312, the booster pump 312 pumps water from the inside of the water tank 311 through the water inlet pipe 313, and a water outlet pipe 314, which is fixedly connected to the water outlet end of the booster pump 312, and the booster pump 312 sends water out through the water outlet pipe 314. The flushing component 31 also includes: a delivery pipe 315, which has three in number, and the three delivery pipes 315 are fixedly connected to the water outlet pipe 314, the delivery pipe 315 is a hose, and the delivery pipe 315 has a surplus length, and a flushing plate 316, which is rotatably installed in the dust removal bin 11 inner wall top, and the upper end of the scouring plate 316 is fixedly connected to the conveying pipe 315, the upper end of the conveying pipe 315 is fixedly installed on the inner wall top of the dust removal bin 11, the lower end of the conveying pipe 315 is located on the inner wall of the dust removal bin 11 and has a surplus length, and the scouring plate 316 is provided with a plurality of water spray ports on one side close to the filter plate group 22, and there are three scouring plates 316, and the three scouring plates 316 are respectively located on the right sides of the three filter plates, and the adjusting part 317 is fixedly installed on the upper end of the scouring plate 316, and the flushing angle of the scouring plate 316 can be flexibly adjusted through the adjusting part 317, and the adjusting part 317 includes: a slide groove 3171, which is opened on both sides of the upper end of the scouring plate 316, a reset spring 3172, which is fixedly installed on the inner wall top of the dust removal bin 11, and the reset spring 3172 is arranged inside There are sliding rods and sliding sleeves, the sliding sleeve is fixedly connected to the top plate of the inner wall of the dust removal bin 11, the sliding block 3173 is fixedly installed at the lower end of the reset spring 3172, and the sliding block 3173 is slidably installed on the inner wall of the slide groove 3171, the bottom of the sliding block 3173 is a cylinder, the sliding block 3173 can slide inside the slide groove 3171, the first telescopic rod 3174 is fixedly installed on the top of the inner wall of the dust removal bin 11, the stop block 3175 is rotatably installed at the lower end of the first telescopic rod 3174, and the stop block 3175 is against the upper end of the flushing plate 316, the stop block 3175 can push the flushing plate 316 to rotate around the connection between it and the dust removal bin 11 when the first telescopic rod 3174 is extended and retracted, and the stop block 3175 can rotate with the rotation of the flushing plate 316, the drainage assembly 32,It is arranged on the inner wall of the dust removal bin 11, and can drain water through the drainage mechanism 33. The drainage assembly 32 includes: a drainage groove 321, which is opened on the inner wall of the bottom plate 21, and the drainage groove 321 is located on both sides of the filter plate group 22, a cavity is opened on the inner wall of the front end of the dust removal bin 11, and the cavity is integrated with the four drainage grooves 321, and the upper end of the drainage pipe 326 is connected to the inside of the cavity, a guide plate 322, which is fixedly installed on the inner wall of the drainage groove 321, and the upper end of the guide plate 322 is inclined, so that the water flow on the inner wall of the drainage groove 321 can flow into the cavity and be discharged through the drainage pipe 326, and a block 323, which is slidably installed on the inner wall of the dust removal bin 11, and the block 323 extends to the upper side of the guide plate 322, and the block 323 can be inserted into the drainage groove 321. There are four block blocks 323, and the outer walls of the four block blocks 323 are all fixedly installed There is a sealing ring 324, which is located inside the cavity. The drainage assembly 32 also includes: a sealing ring 324, which is fixedly installed on the outer wall of the block 323. When the block 323 is fully inserted into the inner wall of the drainage groove 321, the sealing ring 324 can fit tightly with the inner wall of the dust removal bin 11 and cooperate with the block 323 to seal the connection between the drainage groove 321 and the air to prevent smoke leakage. The second telescopic rod 325 is fixedly installed on the inner wall of the dust removal bin 11, and the second telescopic rod 325 is fixedly connected to the side of the block 323 away from the guide plate 322. The drainage pipe 326 is fixedly installed at the lower end of the dust removal bin 11. The inner wall of the drainage pipe 326 is fixedly installed with a valve. The second telescopic rod 325 can drive the block 323 to extend into the inner wall of the drainage groove 321.

[0061] The above structures and principles are all common standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods;

[0062] The working principle of the utility model is as follows: when the dust removal bin body inside the denitration, desulfurization and dust removal device of the combustion flue gas needs to be cleaned after a long period of dust removal work, the filter plate group 22 needs to be cleaned, the booster pump 312 is started, and water is pumped from the water tank 311 through the booster pump 312, and the water flow inside the water tank 311 enters the water inlet pipe 313, the water outlet pipe 314 and the delivery pipe 315 in turn, and then is sprayed out at high speed through the flushing plate 316; the first telescopic rod 3174 is started, and the first telescopic rod 3174 pushes the stop block 3175 to move up and down, and at the same time, reset springs 3172 are arranged on both sides of the upper end of the flushing plate 316, and the reset spring 3172 has a pulling force on the flushing plate 316. When the stop block 3175 pushes the flushing plate 316 to rotate downward, the reset spring 3172 has a tendency to shrink and reset, and the reset spring 3172 The flushing plate 316 has an upward pulling force, and the block 3175 has a downward thrust on the flushing plate 316. The thrust and pulling force offset each other so that the flushing plate 316 can remain in a relatively static state. Similarly, when the first telescopic rod 3174 drives the block 3175 to retract, the reset spring 3172 has an upward pulling force on the flushing plate 316, and the thrust of the block 3175 on the flushing plate 316 is reduced and disappears, so that the reset spring 3172 can shrink and pull the flushing plate 316 to rotate upward, so that the three flushing plates 316 can reciprocate to flush the three filter plates more comprehensively, and the second telescopic rod 325 is started, and the block 3175 is retracted by the second telescopic rod 325, so that the water flow can flow into the cavity through the guide plate 322, and then be discharged through the drain pipe 326.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A denitrification, desulfurization and dust removal device for combustion flue gas, comprising a dust removal bin body (1), characterized in that: Also includes: A dust removal mechanism (2) is fixedly mounted on the inner wall of the dust removal bin body (1), and the dust removal mechanism (2) can remove dust from the combustion flue gas entering the dust removal bin body (1); A cleaning mechanism (3) is fixedly mounted on the inner wall of the dust removal bin body (1), and the dust removal mechanism (2) can be cleaned by the cleaning mechanism (3); The dust removal bin body (1) comprises: Dust removal bin (11); A smoke inlet pipe (12) fixedly mounted on the left end of the dust removal bin (11); An exhaust pipe (13) is fixedly installed at the right end of the dust removal bin (11), and one-way valves are fixedly installed on the inner walls of the smoke inlet pipe (12) and the exhaust pipe (13); The dust removal mechanism (2) comprises: A bottom plate (21) fixedly mounted on the inner wall of the dust removal bin (11); A filter plate group (22) is fixedly mounted on the upper end of the bottom plate (21), and the filter plate group (22) includes a primary filter plate (221), a secondary filter plate (222) and a tertiary filter plate (223); The cleaning mechanism (3) comprises: A flushing component (31), which is arranged on one side of the filter plate group (22), and the filter plate group (22) can be flushed by the flushing component (31); A drainage assembly (32) is arranged on the inner wall of the dust removal bin (11) and is capable of draining water through a drainage mechanism (33); The flushing assembly (31) comprises: A water tank (311) is fixedly mounted on the upper end of the dust removal bin (11); A booster pump (312) fixedly mounted on the top of the water tank (311); A water inlet pipe (313) is fixedly connected to the water tank (311), and one end of the water inlet pipe (313) away from the water tank (311) is fixedly connected to the water inlet end of the booster pump (312); The water outlet pipe (314) is fixedly connected to the water outlet end of the booster pump (312).

2. The denitrification, desulfurization and dust removal device for combustion flue gas according to claim 1, characterized in that: The flushing assembly (31) further comprises: There are three delivery pipes (315), and the three delivery pipes (315) are all fixedly connected to the water outlet pipe (314). A flushing plate (316) is rotatably mounted on the top of the inner wall of the dust removal bin (11), and the upper end of the flushing plate (316) is fixedly connected to the conveying pipe (315); The adjusting portion (317) is fixedly mounted on the upper end of the flushing plate (316), and the flushing angle of the flushing plate (316) can be flexibly adjusted through the adjusting portion (317).

3. The denitrification, desulfurization and dust removal device for combustion flue gas according to claim 2, characterized in that: The adjusting unit (317) comprises: A chute (3171) is provided on both sides of the upper end of the scouring plate (316); A return spring (3172) is fixedly mounted on the top of the inner wall of the dust removal bin (11); A slider (3173) is fixedly mounted on the lower end of the return spring (3172), and the slider (3173) is slidably mounted on the inner wall of the slide groove (3171); A first telescopic rod (3174) fixedly mounted on the top of the inner wall of the dust removal bin (11); The butt block (3175) is rotatably mounted on the lower end of the first telescopic rod (3174), and the butt block (3175) butts against the upper end of the flushing plate (316).

4. The denitrification, desulfurization and dust removal device for combustion flue gas according to claim 3, characterized in that: The drainage assembly (32) comprises: Drainage grooves (321) are provided on the inner wall of the bottom plate (21), and the drainage grooves (321) are located on both sides of the filter plate group (22); A guide plate (322) fixedly mounted on the inner wall of the drainage trough (321); The blocking block (323) is slidably mounted on the inner wall of the dust removal bin (11), and the blocking block (323) extends to the upper side of the guide plate (322).

5. The denitrification, desulfurization and dust removal device for combustion flue gas according to claim 4, characterized in that: The drainage assembly (32) further comprises: A sealing ring (324) fixedly mounted on the outer wall of the block (323); A second telescopic rod (325) is fixedly mounted on the inner wall of the dust removal bin (11), and the second telescopic rod (325) is fixedly connected to a side of the blocking block (323) away from the guide plate (322); The drainage pipe (326) is fixedly installed at the lower end of the dust removal bin (11).

Images