Flue gas purification structure of waste heat boiler

Abstract

The utility model discloses a flue gas purification structure of a waste heat boiler, which comprises a filter box, a gas inlet pipe is arranged on one side of the filter box, a spraying box is arranged on one side, far away from the gas inlet pipe, of the filter box, the filter box is communicated with the spraying box through a connecting pipe, a gas outlet pipe is arranged on one side, far away from the filter box, of the spraying box, and filter screens are symmetrically arranged in the filter box. The two groups of filter screens are connected with the filter box through elastic pieces, an intermittent impact assembly is arranged between the two groups of filter screens, and a spraying assembly is arranged in the spraying box. The device has the beneficial effects that the filter screens can be intermittently knocked by arranging the elastic piece and the intermittent knocking assembly, so that the filter screens generate a vibration effect to vibrate off dust, the situation that the flue gas circulation efficiency is reduced due to the fact that filter screen holes are blocked is prevented, meanwhile, the intermittent knocking assembly can intermittently knock the two filter screens, operation is convenient, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas purification technical field, concretely related to a flue gas purification structure of waste heat boiler. BACKGROUND

[0002] Waste heat boiler is composed of a drum, a movable smoke hood, a furnace mouth section flue, an inclined 1 section flue, an inclined 2 section flue, a last 1 section flue, a last 2 section flue, a feeding pipe (a discharging chute), an oxygen lance, a nitrogen seal device and a nitrogen seal plug, an inlet hole, a differential pressure taking device, a flue support and a hanger, etc.; the waste heat boiler is divided into six circulation loops, each circulation loop is composed of a downcomer and a riser, and each section flue feeds water from the drum to the lower header of each flue through the downcomer, and then the water enters each heating surface, the water generates steam after passing through the heating surface, and then the steam enters the inlet header and is introduced into the drum by the riser.

[0003] According to the waste heat boiler flue gas purification device disclosed by Chinese patent CN202323309790.5, the application comprises a first base, a filter tank is fixedly installed on the top of the first base, a connecting pipe is fixedly installed on one side of the filter tank, a spray tank is fixedly installed on the end of the connecting pipe away from the filter tank, a second base is fixedly installed on the bottom of the spray tank, a rotating filter assembly is arranged in the first base and the filter tank, a spray purification assembly is arranged in the spray tank, a smoke exhaust valve is fixedly installed on the middle of the surface of the spray tank, and a blowdown valve is fixedly installed on the lower part of the surface of the spray tank; the present purification device can filter out large particles in the flue gas in advance, avoid clogging the spray head, and improve the use effect of the device. The existing flue gas purification device filters and intercepts large particles in the flue gas through a filter frame, but the filter holes on the filter frame are easily clogged by impurities during the interception process, thereby affecting the flow efficiency of the flue gas and requiring manual cleaning, which is time-consuming.

[0004] At present, no effective solution has been proposed for the problems in the related art. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a flue gas purification structure of waste heat boiler to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the following specific technical solutions:

[0007] The application discloses a flue gas purification structure of a waste heat boiler.

[0008] Preferably, the filter box is provided with a box door one on one side, and the spray box is provided with a box door two on one side.

[0009] Preferably, the elastic member comprises sliding blocks one provided on both ends of the filter screen, sliding grooves one matched with the sliding blocks one are formed in the filter box, guide rods penetrating through the sliding blocks one are arranged in the sliding grooves one, and springs are arranged on one side of the sliding blocks one and located outside the guide rods.

[0010] Preferably, sliding holes one matched with the guide rods are formed in the sliding blocks one, and the sliding blocks one are connected with the filter box through the springs.

[0011] Preferably, the intermittent knocking assembly comprises a rotating disc arranged between the two groups of filter screens, the rotating disc is connected with the filter box through a rotating shaft, the rotating disc is provided with symmetrically arranged L-shaped sliding rods on one side, the two groups of L-shaped sliding rods are connected with the filter box through connecting frames, knocking blocks are arranged on sides, away from each other, of the two groups of L-shaped sliding rods, a sliding groove two is formed in one side of the rotating disc, symmetrically arranged sliding blocks two matched with the sliding groove two are arranged in the sliding groove two, and the two groups of L-shaped sliding rods are extended into the sliding groove two and connected with the two groups of sliding blocks two on sides, close to each other.

[0012] Preferably, the rotating shaft is connected with a driving end of a driving motor outside the filter box, and sliding holes two matched with the L-shaped sliding rods are formed in the connecting frames.

[0013] Preferably, the spray assembly comprises a horizontally arranged conveying pipe one arranged in the spray box, a plurality of evenly distributed spray heads are arranged on an outer wall of the conveying pipe one, a water tank is arranged at a top end of the spray box, the water tank is connected with the spray box through a fixing frame, a conveying pipe two is arranged at a bottom end of the water tank, the conveying pipe two is extended into the spray box and connected with the conveying pipe one, and a conveying pump is arranged at the top end of the spray box and located on the conveying pipe two.

[0014] Preferably, the spray box is provided with a drain pipe at a bottom end, and a valve is arranged on the drain pipe.

[0015] The utility model discloses beneficial effect is: through setting up elastic member and intermittent knock component can be to filter screen intermittent knock, make filter screen produce vibration effect and shake down dust, prevent filter screen hole block and reduce flue gas flow efficiency, and intermittent knock component can be to two groups filter screen intermittent knock, convenient operation high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0017] Figure 1 It is the overall structure schematic diagram of the flue gas purification structure of a waste heat boiler according to the utility model embodiment;

[0018] Figure 2 It is another angle structure schematic diagram of the flue gas purification structure of a waste heat boiler according to the utility model embodiment;

[0019] Figure 3 It is the front view of the flue gas purification structure of a waste heat boiler according to the utility model embodiment;

[0020] Figure 4 It is the section view of filter box in the flue gas purification structure of a waste heat boiler according to the utility model embodiment;

[0021] Figure 5 It is Figure 4 The local enlarged schematic diagram of A in;

[0022] Figure 6 It is Figure 4 The local enlarged schematic diagram of B in;

[0023] Figure 7 It is the section view of the spray tank in the flue gas purification structure of a waste heat boiler according to the utility model embodiment.

[0024] In the drawing:

[0025] 1, filter box;2, inlet pipe;3, spray tank;4, connecting pipe;5, outlet pipe;6, filter screen;7, sliding block one;8, sliding slot one;9, guide rod;10, spring;11, rotary disc;12, rotating shaft;13, L type slide bar;14, connecting frame;15, knock block;16, sliding slot two;17, sliding block two;18, drive motor;19, conveying pipe one;20, spray head;21, water tank;22, fixed frame;23, conveying pipe two;24, delivery pump;25, liquid discharge pipe;26, valve. DETAILED DESCRIPTION

[0026] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0027] According to the embodiments of the utility model, a flue gas purification structure of a waste heat boiler is provided.

[0028] Embodiment one;

[0029] As Figures 1-7 shown, according to the flue gas purification structure of the waste heat boiler of the utility model embodiment, including filter box 1, filter box 1 one side is equipped with inlet pipe 2, filter box 1 is equipped with spray tank 3 away from inlet pipe 2 one side, filter box 1 is communicated with spray tank 3 through connecting pipe 4, spray tank 3 is equipped with outlet pipe 5 away from filter box 1 one side, filter box 1 is equipped with the filter screen 6 of symmetrical arrangement, two groups of filter screen 6 are all connected with filter box 1 through elastic part, and intermittent knock component is equipped between two groups of filter screen 6, and spray tank 3 is equipped with spray assembly.

[0030] Embodiment two;

[0031] As Figures 1-7As shown, including filter box 1, filter box 1 side is equipped with air inlet pipe 2, filter box 1 is equipped with spray tank 3 away from air inlet pipe 2 side, filter box 1 is communicated with spray tank 3 through connecting pipe 4, spray tank 3 is equipped with air outlet pipe 5 away from filter box 1 side, filter box 1 is equipped with symmetrically arranged filter screen 6, two groups of filter screen 6 are connected with filter box 1 through elastic element, and intermittent knock assembly is arranged between the two groups of filter screen 6, and spray assembly is arranged in spray tank 3. Filter box 1 side is equipped with door one, and spray tank 3 side is equipped with door two. The elastic element comprises sliding block one 7 arranged at both ends of the filter screen 6, a sliding groove one 8 matched with the sliding block one 7 is formed in the filter box 1, a guide rod 9 penetrating through the sliding block one 7 is arranged in the sliding groove one 8, and a spring 10 is sleeved on one side of the sliding block one 7 and located outside the guide rod 9. A sliding hole one matched with the guide rod 9 is formed in the sliding block one 7, and the sliding block one 7 is connected with the filter box 1 through the spring 10. The intermittent knock assembly comprises a rotating disc 11 arranged between the two groups of filter screen 6, the rotating disc 11 is connected with the filter box 1 through a rotating shaft 12, the rotating disc 11 side is equipped with symmetrically arranged L-shaped slide rods 13, the two groups of L-shaped slide rods 13 are connected with the filter box 1 through connecting frames 14, the far sides of the two groups of L-shaped slide rods 13 are equipped with knock blocks 15, and the rotating disc 11 side is equipped with a sliding groove two 16, the sliding groove two 16 is equipped with symmetrically arranged sliding blocks two 17 matched with the sliding groove two 16, and the two groups of L-shaped slide rods 13 are extended into the sliding groove two 16 and connected with the two groups of sliding blocks two 17 respectively. The rotating shaft 12 side is extended to the outside of the filter box 1 and connected with the driving end of the driving motor 18, and the connecting frame 14 is equipped with a sliding hole two matched with the L-shaped slide rod 13. When the flue gas enters the filter box 1 from the air inlet pipe 2, the driving motor 18 is started to drive the rotating shaft 12 to rotate, the rotating shaft 12 drives the rotating disc 11 to rotate, the rotating disc 11 drives the two groups of sliding blocks two 17 to relatively reciprocate through the sliding groove two 16 when rotating, the two groups of sliding blocks two 17 drive the two groups of L-shaped slide rods 13 to relatively reciprocate respectively, and the two groups of L-shaped slide rods 13 drive the knock blocks 15 to intermittently knock the two groups of filter screen 6 respectively, the filter screen 6 is vibrated by knocking and cooperates with the spring 10 to produce vibration effect, and the flue gas dust attached to the surface of the filter screen 6 is vibrated and falls off. By arranging the elastic element and the intermittent knock assembly, the filter screen can be intermittently knocked, the filter screen can be vibrated to make the dust fall off, and the filter screen hole is prevented from being blocked to reduce the flue gas flow efficiency.

[0032] Example three;

[0033] As Figures 1-7As shown, including filter box 1, filter box 1 side is equipped with air inlet pipe 2, filter box 1 is equipped with spray tank 3 away from air inlet pipe 2 side, filter box 1 is communicated with spray tank 3 through connecting pipe 4, spray tank 3 is equipped with air outlet pipe 5 away from filter box 1 side, filter box 1 is equipped with the filter screen 6 of symmetrical arrangement, two groups of filter screen 6 are connected with filter box 1 through elastic element, and the intermittent knock component is arranged between two groups of filter screen 6, and spray tank 3 is equipped with spray assembly. Spray assembly includes the transversely arranged conveying pipe one 19 in spray tank 3, the outer wall of conveying pipe one 19 is equipped with a plurality of evenly distributed spray heads 20, the top of spray tank 3 is equipped with water tank 21, water tank 21 bottom is connected with spray tank 3 through fixing frame 22, water tank 21 bottom is equipped with conveying pipe two 23, conveying pipe two 23 bottom extends into spray tank 3 and is communicated with conveying pipe one 19, and conveying pump 24 is arranged on the top of spray tank 3 and located on conveying pipe two 23. The bottom of spray tank 3 is equipped with drain pipe 25, and valve 26 is arranged on drain pipe 25. When the flue gas enters spray tank 3 from filter box 1 through connecting pipe 4, conveying pump 24 is started to convey the water in water tank 21 to conveying pipe one 19 through conveying pipe two 23, then the flue gas is sprayed through spray head 20, and the purification accuracy is further improved; the treated flue gas is discharged through air outlet pipe 5.

[0034] In actual application, when the flue gas enters filter box 1 from air inlet pipe 2, the driving motor 18 is started to drive the rotating shaft 12 to rotate, the rotating shaft 12 drives the rotating disc 11 to rotate, the rotating disc 11 drives the two groups of sliding blocks two 17 to relatively reciprocate through the sliding groove two 16 when rotating, the two groups of sliding blocks two 17 drive the two groups of L-shaped slide rods 13 to relatively reciprocate respectively, the two groups of L-shaped slide rods 13 drive the knocking blocks 15 to intermittently knock the two groups of filter screens 6 respectively, the filter screen 6 is vibrated by the knocking and cooperates with the spring 10 to generate vibration effect, and the dust attached to the surface of the filter screen 6 is vibrated to fall off; the filter screen can be intermittently knocked by arranging the elastic element and the intermittent knock component, the vibration effect of the filter screen is generated to vibrate the dust to fall off, the filter screen holes are prevented from being blocked to reduce the flue gas flow efficiency; when the flue gas enters spray tank 3 from filter box 1 through connecting pipe 4, the conveying pump 24 is started to convey the water in water tank 21 to conveying pipe one 19 through conveying pipe two 23, then the flue gas is sprayed through spray head 20, the purification accuracy is further improved, and the treated flue gas is discharged through air outlet pipe 5.

[0035] In summary, by means of the above technical scheme of the utility model, the filter screen can be intermittently knocked by arranging the elastic element and the intermittent knock component, the vibration effect of the filter screen is generated to vibrate the dust to fall off, the filter screen holes are prevented from being blocked to reduce the flue gas flow efficiency, the two groups of filter screens can be intermittently knocked by the intermittent knock component, and the operation is convenient and efficient.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flue gas cleaning structure of a waste heat boiler, characterized by comprising: The utility model provides filter box (1) one side is equipped with air inlet pipe (2), filter box (1) is equipped with spray tank (3) away from air inlet pipe (2) one side, filter box (1) is connected with spray tank (3) through connecting pipe (4), spray tank (3) is equipped with air outlet pipe (5) away from filter box (1) one side, be equipped with the filter screen (6) of symmetry of being equipped with in filter box (1), two groups filter screen (6) all are connected with filter box (1) through elastic member, be equipped with intermittent knock subassembly between two groups filter screen (6), be equipped with spray subassembly in spray tank (3).

2. The flue gas cleaning structure of a waste heat boiler according to claim 1, characterized in that Filter box (1) one side is equipped with box door one, spray tank (3) one side is equipped with box door two.

3. The flue gas cleaning structure of a waste heat boiler according to claim 1, characterized in that, The elastic member includes the sliding block one (7) both ends of the filter screen (6) are equipped with, the filter box (1) is opened with the sliding slot one (8) of matching with the sliding block one (7), the sliding slot one (8) is equipped with the guide rod (9) of penetrating the sliding block one (7), the spring (10) is equipped on the sliding block one (7) one side and the outer wall of guide rod (9) is located on the sleeve, the sliding block one (7) is opened with the sliding hole one of matching with the guide rod (9) on, the sliding block one (7) is connected with the filter box (1) through the spring (10).

4. The flue gas cleaning structure of a waste heat boiler according to claim 3, characterized in that The intermittent knock subassembly includes the rotating disc (11) between two groups filter screen (6) and is equipped with, the rotating disc (11) is connected with filter box (1) through the rotating shaft (12), the rotating disc (11) one side is equipped with the L type slide bar (13) of symmetry, two groups L type slide bar (13) all are connected with filter box (1) through the connecting frame (14), two groups L type slide bar (13) far away one side all are equipped with knock block (15), the rotating disc (11) one side is opened with the sliding slot two (16), the sliding slot two (16) is equipped with the sliding block two (17) of symmetry and is equipped with in the sliding slot two (16) matching, two groups L type slide bar (13) near one side all extend to the sliding slot two (16) and are connected with two groups sliding block two (17) respectively.

5. The flue gas cleaning structure of a waste heat boiler according to claim 1, characterized in that, The rotating shaft (12) one side extends to the filter box (1) outside and is connected with the drive end of drive motor (18), the connecting frame (14) is opened with the sliding hole two of matching with the L type slide bar (13) on.

6. The flue gas cleaning structure of a waste heat boiler according to claim 5, characterized in that The spray subassembly includes the conveying pipe one (19) of transverse arrangement in the spray tank (3), the conveying pipe one (19) outer wall is equipped with several evenly distributed spray heads (20), the water tank (21) is equipped at the top of spray tank (3), the water tank (21) bottom is connected with the spray tank (3) through the fixing frame (22), the water tank (21) bottom is equipped with the conveying pipe two (23), the conveying pipe two (23) bottom extends to the spray tank (3) and is connected with the conveying pipe one (19), the conveying pump (24) is equipped at the top of spray tank (3) and is located on the conveying pipe two (23).

7. The flue gas cleaning structure of a waste heat boiler according to claim 1, characterized in that, The spray tank (3) bottom is equipped with the drain pipe (25), and the valve (26) is arranged on the drain pipe (25).

8. The flue gas cleaning structure of a waste heat boiler according to claim 1, characterized in that, ​

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