Denitration, desulfurization, dust removal and heat recovery system for treating pre-carbonized flue gas

Abstract

The utility model discloses a denitration, desulfurization, dust removal and heat recovery system for treating pre-carbonized flue gas, which comprises a desulfurization and denitrification box, the outer wall of the desulfurization and denitrification box is communicated with a connecting pipe, the outer wall of the connecting pipe is communicated with a waste heat recovery device, the outer wall of the desulfurization and denitrification box is fixedly connected with a bracket for fixing the waste heat recovery device, and the bracket is fixedly connected with a dust removal device. A top pipeline of the waste heat recovery device communicates with a smoke filter box, and a vibration filter element is arranged on the inner wall of the smoke filter box. Before entering the waste heat recovery device, smoke firstly enters the smoke filter box to be filtered, so that granular smoke dust is intercepted, then vibration is carried out through the vibration filter element, particles adhered to the smoke dust can be shaken off, and therefore the filtering effect cannot be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of smoke treatment, and in particular relates to a denitration, desulfurization and dust removal heat recovery system for treating pre-carbonized smoke. Background Art

[0002] When the boiler uses coal, it will produce flue gas containing a large amount of sulfur and nitrogen elements. Therefore, desulfurization, denitrification and dust removal equipment is needed to remove the sulfur and nitrogen elements in the flue gas, as well as to filter the dust in the flue gas.

[0003] Patent CN210728958U describes a flue gas desulfurization, denitrification and dust removal device for a coal-fired boiler, which enables the air in the waste heat recovery device to receive heat conduction from the flue gas on both sides, thereby achieving a waste heat recovery effect; it is convenient for users to replace idle desulfurization and denitrification components, and can recover the heat of the flue gas for waste heat. It has a simple structure and is convenient for users to operate, thereby improving the practicality of the flue gas desulfurization, denitrification and dust removal equipment. However, since its dust filter is clogged with dust after long-term use, the filter element needs to be replaced frequently, and it is inconvenient to clean the filter element internally. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a denitrification, desulfurization, and dust removal heat recovery system for treating pre-carbonized flue gas, which has the advantage of being easy to clean dust.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a denitrification, desulfurization, and dust removal heat recovery system for treating pre-carbonized flue gas, comprising a desulfurization and denitrification box, the outer wall of the desulfurization and denitrification box is connected to a connecting pipe, the outer wall of the connecting pipe is connected to a waste heat recovery device, the outer wall of the desulfurization and denitrification box is fixedly connected to a bracket for fixing the waste heat recovery device, the top pipeline of the waste heat recovery device is connected to a smoke filter box, and the inner wall of the smoke filter box is provided with a vibrating filter element.

[0006] Through the above technical solution, the smoke and dust on the filter element can be easily shaken off. Before the smoke enters the waste heat recovery device, it will first enter the smoke filter box for filtration, thereby intercepting the particulate smoke and dust. Then, by vibrating the filter element, the particles adhering to it can be shaken off, thereby not reducing the filtering effect.

[0007] Preferably, the vibration filter element includes two motors, the output ends of the two motors are fixedly connected to a rotating shaft, the outer walls of the two rotating shafts are provided with a plurality of round bones, the outer wall of each round bone is provided with a spring sheet, and the interior of each round bone is provided with a filter plate.

[0008] Through the above technical solution, a shaking effect can be achieved. The two motors will drive the two shafts to rotate in opposite directions. In this way, when the two motors start to run, the round bones will carry the shrapnel to collide with each other, causing the shrapnel to vibrate, thereby transmitting the vibration force to the filter, thereby achieving the effect of shaking off dust.

[0009] Preferably, the round bones on the two rotating shafts are arranged alternately, and the elastic sheets can rebound and deform.

[0010] Through the above technical solution, the effect of generating vibration can be achieved. The circular bones are arranged in an alternating manner, so that the spring pieces on the adjacent circular bones will generate a force when rotating, and then the spring pieces are squeezed and deformed, and rebound after the contact is completed, thereby generating a shaking force.

[0011] Preferably, the outer wall of the filter plate is connected to the hollow inner wall of the round bone, and the filter plate is V-shaped.

[0012] Through the above technical scheme, the filtering effect can be improved. The filter plate is made into a V-shape, which can increase the contact area with the smoke and dust, thereby improving the filtering effect. The V-shape can pour the shaken dust to the outside when the round bone rotates continuously, so that the dust can fall into the drawer at the bottom.

[0013] Preferably, the smoke filter box comprises a box body, and a core bin is provided on the inner wall of the box body.

[0014] The above technical solution can be used to install the filter element, and the filter sheet on the vibration filter element can be placed by setting the core bin.

[0015] Preferably, a hollow breathable hanging plate is fixedly connected to an outer wall of one side of the core bin, and a drawer is provided at the bottom of the core bin.

[0016] The above technical solution can achieve the effect of cleaning dust, and the setting of the drawer can achieve the effect of receiving impurities, and then the cleaning work can be carried out by taking out the drawer.

[0017] Preferably, an inlet is provided on one side of the box body, and an outlet is provided on the top of the other side of the box body.

[0018] Through the above technical solution, a ventilation effect can be achieved, and the inlet and outlet on both sides of the box body can allow air flow, so that the smoke can be filtered through the smoke filter box.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. Before the flue gas enters the waste heat recovery device, it will first enter the smoke filter box for filtration, so as to intercept the particulate smoke and dust, and then vibrate the filter element to shake off the particles stuck on it, so as not to reduce the filtering effect. The two motors will drive the two shafts to rotate in opposite directions. In this way, when the two motors start to run, the round bones will carry the shrapnel to collide with each other, so that the shrapnel will vibrate, and the vibration force will be transmitted to the filter, so as to achieve the effect of shaking off the dust. The round bones are staggered, so that the shrapnel on the adjacent round bones will generate a force when rotating, and then the shrapnel will be squeezed and deformed, and rebound after the contact is completed, thereby generating a shaking force.

[0021] 2. Making the filter into a V shape can increase the contact area with the smoke and dust, thereby improving the filtering effect. The V shape can pour the shaken dust to the outside when the round bone rotates continuously, so that the dust can fall into the drawer at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the smoke filter box structure of the utility model;

[0024] Figure 3 This is a cross-sectional structural diagram of the smoke filter box of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the vibration filter element of the utility model;

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of the vibration filter element of the utility model.

[0027] In the figure: 1. Desulfurization and denitrification box; 2. Connecting pipe; 3. Bracket; 4. Waste heat recovery device; 5. Smoke filter box; 6. Vibrating filter element; 500. Box body; 501. Core bin; 502. Drawer; 503. Breathable hanging plate; 504. Inlet; 505. Outlet; 600. Motor; 601. Rotating shaft; 602. Round bone; 603. Filter plate; 604. Shrapnel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Embodiment 1:

[0030] See also Figure 1-Figure 5 The utility model provides a technical solution: a desulfurization, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas, comprising a desulfurization and denitrification box 1, the outer wall of the desulfurization and denitrification box 1 is connected with a connecting pipe 2, the outer wall of the connecting pipe 2 is connected with a waste heat recovery device 4, the outer wall of the desulfurization and denitrification box 1 is fixedly connected with a bracket 3 for fixing the waste heat recovery device 4, the top pipeline of the waste heat recovery device 4 is connected with a smoke filter box 5, and the inner wall of the smoke filter box 5 is provided with a vibrating filter element 6.

[0031] In this embodiment, before the flue gas enters the waste heat recovery device 4, it will first enter the smoke filter box 5 for filtration, thereby intercepting the particulate smoke and dust, and then vibrate the filter element 6 to shake off the particles adhering to it, thereby not reducing the filtering effect.

[0032] Embodiment 2:

[0033] See also Figure 4-Figure 5 On the basis of the first embodiment, the utility model provides a technical solution: the vibration filter element 6 includes two motors 600, the output ends of the two motors 600 are fixedly connected with a rotating shaft 601, the outer walls of the two rotating shafts 601 are provided with a plurality of round bones 602, the outer wall of each round bone 602 is provided with a spring piece 604, and the interior of each round bone 602 is provided with a filter plate 603. The round bones 602 on the two rotating shafts 601 are arranged alternately, the spring piece 604 can rebound and deform, the outer wall of the filter plate 603 is connected to the hollow inner wall of the round bone 602, and the filter plate 603 is V-shaped.

[0034] In this embodiment, the two motors 600 will drive the two rotating shafts 601 to rotate in opposite directions. When the two motors 600 start to run, the round bones 602 will drive the spring pieces 604 to collide with each other, causing the spring pieces 604 to vibrate, thereby transmitting the vibration force to the filter 603, thereby achieving the effect of shaking off the dust. The round bones 602 are arranged in an alternating manner, so that the spring pieces 604 on the adjacent round bones 602 will generate a force when rotating, and then the spring pieces 604 will be squeezed and deformed, and rebound after the contact is completed, thereby generating a shaking force. The filter 603 is made into a V-shape, which can increase the contact area with the smoke and dust, thereby improving the filtering effect, and the V-shape can pour the shaken dust to the outside when the round bones 602 are continuously rotating, so that the dust can fall into the drawer 502 at the bottom.

[0035] Embodiment three:

[0036] See also Figure 2-Figure 3On the basis of the first and second embodiments, the utility model provides a technical solution: the smoke filter box 5 includes a box body 500, the inner wall of the box body 500 is provided with a core bin 501, one side of the outer wall of the core bin 501 is fixedly connected with a hollow breathable hanging plate 503, a drawer 502 is provided at the bottom of the core bin 501, an inlet 504 is provided on one side of the box body 500, and an outlet 505 is provided on the top of the other side of the box body 500.

[0037] In this embodiment, the filter sheet 603 on the vibration filter element 6 can be placed by setting the core bin 501, and the impurities can be received by setting the drawer 502, and then the cleaning work can be carried out by taking out the drawer 502. The inlet 504 and the outlet 505 on both sides of the box body 500 allow air flow, so that the smoke can be filtered through the smoke filter box 5.

[0038] The working principle and use process of the utility model: before the smoke enters the waste heat recovery device 4, it will first enter the smoke filter box 5 for filtration, so as to intercept the particulate smoke and dust, and then vibrate the filter element 6 to shake off the particles adhering to it, so as not to reduce the filtering effect. The two motors 600 will drive the two rotating shafts 601 to rotate in opposite directions. In this way, when the two motors 600 start to run, the round bones 602 will drive the shrapnel 604 to collide with each other, so that the shrapnel 604 will vibrate, thereby transmitting the vibration force to the filter 603, so as to achieve the effect of shaking off the dust. The round bones 602 are arranged in a staggered manner, so that the shrapnel 604 on the adjacent round bones 602 will produce when rotating. The force is generated, and then the spring piece 604 is squeezed and deformed, and rebounds after the contact is completed, thereby generating a shaking force. The filter 603 is made into a V-shape, which can increase the contact area with the smoke and dust, thereby improving the filtering effect, and the V-shape can pour the shaken dust to the outside when the round bone 602 is constantly rotating, so that the dust can fall into the drawer 502 at the bottom. Through the setting of the core bin 501, the filter 603 on the vibration filter element 6 can be placed. Through the setting of the drawer 502, it can play the effect of absorbing impurities, and then the drawer 502 can be taken out for cleaning. The inlet 504 and the outlet 505 on both sides of the box body 500 allow airflow to circulate, so that the smoke can be filtered through the smoke filter box 5.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A desulfurization, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas, comprising a desulfurization and denitrification box (1), the outer wall of the desulfurization and denitrification box (1) is connected to a connecting pipe (2), the outer wall of the connecting pipe (2) is connected to a waste heat recovery device (4), and the outer wall of the desulfurization and denitrification box (1) is fixedly connected to a bracket (3) for fixing the waste heat recovery device (4), characterized in that: The top pipeline of the waste heat recovery device (4) is connected to a smoke filter box (5), and a vibration filter element (6) is provided on the inner wall of the smoke filter box (5).

2. A denitrification, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas according to claim 1, characterized in that: The vibration filter element (6) comprises two motors (600), the output ends of the two motors (600) are fixedly connected to a rotating shaft (601), the outer walls of the two rotating shafts (601) are provided with a plurality of round bones (602), the outer wall of each round bone (602) is provided with a spring sheet (604), and the interior of each round bone (602) is provided with a filter sheet (603).

3. A denitrification, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas according to claim 2, characterized in that: The round bones (602) on the two rotating shafts (601) are arranged in a staggered manner, and the elastic sheets (604) can rebound and deform.

4. A denitrification, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas according to claim 2, characterized in that: The outer wall of the filter plate (603) is connected to the hollow inner wall of the round bone (602), and the filter plate (603) is V-shaped.

5. The heat recovery system for denitrification, desulfurization and dust removal for treating pre-carbonized flue gas according to claim 1 is characterized in that: The smoke filtering box (5) comprises a box body (500), and a core bin (501) is provided on the inner wall of the box body (500).

6. A denitrification, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas according to claim 5, characterized in that: A hollowed-out air-permeable hanging plate (503) is fixedly connected to an outer wall of one side of the core bin (501), and a drawer (502) is provided at the bottom of the core bin (501).

7. A denitrification, desulfurization and dust removal heat recovery system for treating pre-carbonized flue gas according to claim 6, characterized in that: An inlet (504) is provided on one side of the box body (500), and an outlet (505) is provided on the top of the other side of the box body (500).

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