Flue gas treatment device for biomass boiler

Abstract

The utility model discloses a flue gas treatment device for a biomass boiler, and provides the flue gas treatment device for the biomass boiler, which comprises a flue gas treatment bin body, one side of the surface of the flue gas treatment bin body is provided with a biomass boiler body, and one side of the surface of the biomass boiler body is fixedly connected with a flue gas pipe. By arranging the brush, the protective shell, the knocking ball, the lifting plate and other assemblies, the rotating shaft is used for driving the mounting shell and the brush to rotate, the brush brushes the bottom of the filter screen to remove smoke dust solid particles attached to the bottom of the filter screen, the rotating shaft drives the lifting plate to rotate, and the dust removal effect is achieved. The knocking ball can be lifted up and fall to the top of the protective shell to knock the protective shell and the filter screen, so that smoke impurities attached to gaps in the bottom of the filter screen are further removed, the smoke impurities fall into the dust collecting hopper and are discharged from the dust removing pipe, the smoke impurities can be automatically removed, blockage is avoided, disassembly and manual cleaning are not needed, and the working efficiency is improved. Time-saving, labor-saving and more practical.

Description

Technical Field

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

[0002] A biomass boiler is a boiler that uses biomass energy as fuel. It can use various types of biomass fuels, and a biomass boiler flue gas treatment device is a system specifically used to treat flue gas produced after the combustion of biomass fuels. These flue gases usually contain dust, sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), hydrogen chloride (HCl), fluoride (F), heavy metals and other harmful substances. In particular, sulfide and nitrogen oxides are the main causes of acid rain.

[0003] In the prior art, when the biomass boiler flue gas treatment device is in use, a large number of solid particles will be mixed in the flue gas, and the solid particles and soot are easily attached to the filter net, which is prone to blockage over time. The flue gas treatment device can only be disassembled and the filter net manually cleaned before continuing to work, which is time-consuming and labor-intensive, affecting work efficiency and is not practical enough. Utility Model Content

[0004] The technical problem to be solved by the utility model is that when the biomass boiler flue gas treatment device in the prior art is used, a large number of solid particles will be mixed in the flue gas, and the solid particles and soot are easily attached to the filter screen, which is prone to blockage over a long period of time. The flue gas treatment device can only be disassembled and the filter screen manually cleaned before continuing to work, which is time-consuming and labor-intensive, affects work efficiency, and is not practical enough.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a flue gas treatment device for a biomass boiler, comprising a flue gas treatment bin, a biomass boiler body is arranged on one side of the surface of the flue gas treatment bin, a flue gas pipe is fixedly connected to one side of the surface of the biomass boiler body, one end of the flue gas pipe is fixedly connected to the outer side wall of the flue gas treatment bin, and an exhaust pipe is fixedly connected to the outer side wall of the flue gas treatment bin away from the flue gas pipe;

[0006] The inner wall of the flue gas treatment bin is provided with a filter assembly, and a knocking assembly is provided above the filter assembly. The bottom of the flue gas treatment bin is fixedly connected to a dust collecting hopper, and the bottom of the ash collecting hopper is provided with a feeding assembly. The inner top of the flue gas treatment bin is rotatably connected to a rotating shaft, and the bottom end of the rotating shaft penetrates the filter assembly and extends to the inside of the ash collecting hopper and is fixedly connected to a connecting sleeve. A plurality of scrapers are fixedly connected around the outer wall of the connecting sleeve, and a mounting shell is fixedly installed on the outer sleeve of the rotating shaft, and a brush is slidably connected to the inner wall of the mounting shell, and the brush can brush the bottom of the filter to clean the dust.

[0007] Preferably, the filter assembly includes a protective shell, the outer wall of the protective shell is slidably connected to the inner wall of the flue gas treatment bin body, an upper limit ring and a lower limit ring are fixedly connected on the inner wall of the flue gas treatment bin body and located above and below the protective shell, respectively, a plurality of telescopic sleeves are fixedly connected to the top of the lower limit ring, the top of the plurality of telescopic sleeves are fixedly connected to the bottom surface of the protective shell, an installation cavity is provided at the bottom of the protective shell, a filter screen is fixedly installed inside the installation cavity, the bristles of the two brushes are slidably connected to the bottom of the filter screen, a plurality of air holes are provided through the top of the protective shell, the protective shell can protect the filter screen and prevent the filter screen from being damaged.

[0008] Preferably, a first spring is fixedly connected to the inner bottom of the telescopic sleeve, and a top end of the first spring is fixedly connected to an inner top of the telescopic sleeve. The telescopic sleeve can cover the first spring to prevent dust from adhering to the first spring.

[0009] Preferably, a plurality of second springs are fixedly connected to the inner bottom of the mounting shell, and top ends of the plurality of second springs are fixedly connected to the bottom of the brush.

[0010] Preferably, the knocking assembly includes two sliding sleeves, both of which are fixedly connected to the inner top of the flue gas treatment chamber, and the inner side walls of the two sliding sleeves are slidably connected with sliding rods, and the bottom ends of the sliding rods extend through and extend to the outside of the sliding sleeves and are fixedly connected with knocking balls, and the knocking balls are located at the top of the protective shell, and the outer side wall of the rotating shaft is fixedly connected with a lifting plate, and the bottom of the lifting plate is slidably connected to the top of the protective shell, and the lifting plate is arranged in a spiral ascending shape around the rotating shaft, and the rotating shaft drives the lifting plate to rotate, and the lifting plate lifts the knocking ball and then drops it to knock on the top of the protective shell, thereby knocking off the dust mixed in the bottom of the filter.

[0011] Preferably, the outer walls of the plurality of scrapers are slidably connected to the inner wall of the ash hopper, and the scrapers can scrape the inner wall of the ash hopper.

[0012] Preferably, the material discharge assembly comprises a ash cleaning pipe, which is fixedly connected to the bottom of the ash collecting hopper, and an electromagnetic valve is fixedly connected to the outer side wall of the ash cleaning pipe, and the electromagnetic valve can control the opening and closing of the ash cleaning pipe.

[0013] Preferably, a motor is fixedly mounted on the top of the smoke treatment chamber body, and the output end of the motor extends through the interior of the smoke treatment chamber body and is fixedly connected to the top end of the rotating shaft, so that the motor can drive the rotating shaft to rotate.

[0014] Preferably, a plurality of legs are fixedly connected to the bottom of the flue gas treatment bin body along the four sides for support.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model provides components such as a brush, a protective shell, a knocking ball and a lifting plate, and uses a rotating shaft to drive the installation shell and the brush to rotate. The brush brushes the bottom of the filter to remove the solid particles of smoke and dust attached to the bottom of the filter. The rotating shaft drives the lifting plate to rotate, and the knocking ball can be lifted and dropped to the top of the protective shell to knock the protective shell and the filter, further removing the smoke and dust impurities attached to the gap at the bottom of the filter, so that the smoke and dust impurities fall into the ash collecting hopper and are discharged from the ash cleaning pipe. The smoke and dust impurities can be automatically removed to avoid blockage. There is no need to disassemble for manual cleaning, which is time-saving and labor-saving and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of a flue gas treatment device for a biomass boiler according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a knocking component of a flue gas treatment device for a biomass boiler according to the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of an ash hopper of a flue gas treatment device for a biomass boiler according to the utility model;

[0020] Figure 4 This is a structural schematic diagram of a filter assembly of a flue gas treatment device for a biomass boiler according to the utility model;

[0021] Figure 5 This is a structural schematic diagram of the installation shell and brush position of a flue gas treatment device for a biomass boiler according to the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the telescopic sleeve structure of a flue gas treatment device for a biomass boiler.

[0023] In the figure: 1. Flue gas treatment chamber; 101. Upper limit ring; 102. Lower limit ring; 103. Telescopic sleeve; 104. First spring; 2. Biomass boiler body; 201. Flue gas pipe; 3. Filter assembly; 301. Protective shell; 302. Filter screen; 4. Ash hopper; 5. Rotating shaft; 6. Connecting sleeve; 601. Scraper; 7. Mounting shell; 701. Brush; 702. Second spring; 8. Sliding sleeve; 801. Sliding rod; 802. Knocking ball; 803. Lifting plate; 9. Ash cleaning pipe; 901. Solenoid valve; 10. Motor; 11. Support leg. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0025] See also Figures 1 to 4 A flue gas treatment device for a biomass boiler comprises a flue gas treatment bin 1, a biomass boiler body 2 is arranged on one side of the surface of the flue gas treatment bin 1, a flue gas pipe 201 is fixedly connected to one side of the surface of the biomass boiler body 2, one end of the flue gas pipe 201 is fixedly connected to the outer wall of the flue gas treatment bin 1, and an exhaust pipe is fixedly connected to the outer wall of the flue gas treatment bin 1 away from the flue gas pipe 201;

[0026] A filter assembly 3 is provided on the inner wall of the flue gas treatment bin body 1, a knocking assembly is provided above the filter assembly 3, an ash hopper 4 is fixedly connected to the bottom of the flue gas treatment bin body 1, a feeding assembly is provided at the bottom of the ash hopper 4, a rotating shaft 5 is rotatably connected to the inner top of the flue gas treatment bin body 1, the bottom end of the rotating shaft 5 passes through the filter assembly 3 and extends to the inside of the ash hopper 4 and is fixedly connected to a connecting sleeve 6, a plurality of scrapers 601 are fixedly connected around the outer wall of the connecting sleeve 6, a mounting shell 7 is fixedly installed on the outer sleeve of the rotating shaft 5, a brush 701 is slidably connected to the inner wall of the mounting shell 7, and the brush 701 can brush the bottom of the filter net 302 for cleaning.

[0027] like Figures 1 to 6As shown, the bottom of the flue gas treatment bin body 1 is fixedly connected with a plurality of legs 11 for support along the four sides, and a motor 10 is fixedly installed on the top of the flue gas treatment bin body 1. The output end of the motor 10 extends through the interior of the flue gas treatment bin body 1 and is fixedly connected to the top of the rotating shaft 5. The motor 10 can drive the rotating shaft 5 to rotate. The unloading assembly includes a ash cleaning pipe 9, which is fixedly connected to the bottom of the ash collecting hopper 4. A solenoid valve 901 is fixedly connected to the outer wall of the ash cleaning pipe 9, and the solenoid valve 901 can control the opening and closing of the ash cleaning pipe 9. The outer walls of the plurality of scrapers 601 are slidably connected to the inner wall of the ash collecting hopper 4, and the scrapers 601 can move the inner wall of the ash collecting hopper 4. For scraping, the knocking assembly includes two sliding sleeves 8, the two sliding sleeves 8 are fixedly connected to the inner top of the smoke treatment chamber body 1, the inner side walls of the two sliding sleeves 8 are slidably connected with sliding rods 801, the bottom ends of the sliding rods 801 extend through and extend to the outside of the sliding sleeves 8 and are fixedly connected with knocking balls 802, the knocking balls 802 are located at the top of the protective shell 301, the outer side wall of the rotating shaft 5 is fixedly connected with a lifting plate 803, the bottom of the lifting plate 803 is slidably connected to the top of the protective shell 301, and the lifting plate 803 is arranged in a spiral ascending shape around the rotating shaft 5, the rotating shaft 5 drives the lifting plate 803 to rotate, and the lifting plate 803 lifts the knocking ball 802 The top of the second spring 702 is fixedly connected to the bottom of the brush 701, and the top of the second spring 702 is fixedly connected to the bottom of the brush 701. The inner bottom of the telescopic sleeve 103 is fixedly connected to the first spring 104, and the top of the first spring 104 is fixedly connected to the inner top of the telescopic sleeve 103. The telescopic sleeve 103 can cover the first spring 104 to prevent dust from adhering to the first spring 104. The filter assembly 3 includes a protective shell 301, and the outer wall of the protective shell 301 is slidably connected to the inner wall of the smoke treatment bin body 1. An upper limit ring 101 and a lower limit ring 102 are fixedly connected to the inner wall of the storage bin body 1 and located above and below the protective shell 301, respectively. A plurality of telescopic sleeves 103 are fixedly connected to the top of the lower limit ring 102. The top ends of the plurality of telescopic sleeves 103 are fixedly connected to the bottom surface of the protective shell 301. An installation cavity is provided at the bottom of the protective shell 301. A filter screen 302 is fixedly installed inside the installation cavity. The bristles of two brushes 701 are slidably connected to the bottom of the filter screen 302. A plurality of air holes are provided through the top of the protective shell 301. The protective shell 301 can protect the filter screen 302 and prevent the filter screen 302 from being damaged.

[0028] When the utility model is in use, the smoke generated by the biomass boiler body 2 is discharged from the smoke pipe 201 into the smoke treatment bin 1, and is discharged from the exhaust pipe after being filtered by the filter assembly 3 for the next step of treatment. When the filter 302 needs to be cleaned, the motor 10 drives the rotating shaft 5 to rotate, and the rotating shaft 5 drives the mounting shell 7 and the brush 701 on the top thereof to rotate, and the brush 701 can sweep and clean the bottom of the filter 302. At the same time, the rotating shaft 5 drives the lifting plate 803 to rotate, and the lifting plate 803 shovels the knocking ball 802 placed on the top of the protective shell 301 to the top of the lifting plate 803, and the knocking ball 802 rotates with the lifting plate 803. Move to the top of the lifting plate 803 and then fall back to the top of the protective shell 301, knock on the protective shell 301 and the filter 302, and knock off the flue gas impurities attached to the gap at the bottom of the filter 302. At the same time, the protective shell 301 can protect the filter 302 to prevent the filter 302 from being damaged. The swept and knocked-off flue gas impurities fall into the inside of the ash hopper 4. The scraper 601 scrapes the inner wall of the ash hopper 4 as the rotating shaft 5 rotates, and the cleaning pipe 9 is opened through the solenoid valve 901, so that the cleaned smoke and dust impurities are discharged from the bottom of the cleaning pipe 9. There is no need to disassemble the filter 302 for manual cleaning, and the operation is simple and more practical.

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A flue gas treatment device for a biomass boiler, comprising a flue gas treatment chamber (1), characterized in that: A biomass boiler body (2) is arranged on one side of the surface of the flue gas treatment chamber (1); a flue gas pipe (201) is fixedly connected to one side of the surface of the biomass boiler body (2); one end of the flue gas pipe (201) is fixedly connected to the outer wall of the flue gas treatment chamber (1); and an exhaust pipe is fixedly connected to the outer wall of the flue gas treatment chamber (1) away from the flue gas pipe (201); The inner wall of the flue gas treatment bin (1) is provided with a filter assembly (3), and a knocking assembly is provided above the filter assembly (3). The bottom of the flue gas treatment bin (1) is fixedly connected to a dust collecting hopper (4), and a feeding assembly is provided at the bottom of the dust collecting hopper (4). The inner top of the flue gas treatment bin (1) is rotatably connected to a rotating shaft (5), and the bottom end of the rotating shaft (5) passes through the filter assembly (3) and extends to the inside of the dust collecting hopper (4) and is fixedly connected to a connecting sleeve (6). A plurality of scrapers (601) are fixedly connected around the outer wall of the connecting sleeve (6), and a mounting shell (7) is fixedly installed on the outer sleeve of the rotating shaft (5), and a brush (701) is slidably connected to the inner wall of the mounting shell (7).

2. A flue gas treatment device for a biomass boiler according to claim 1, characterized in that: The filter assembly (3) comprises a protective shell (301), the outer wall of the protective shell (301) is slidably connected to the inner wall of the smoke treatment chamber (1), an upper limit ring (101) and a lower limit ring (102) are fixedly connected on the inner wall of the smoke treatment chamber (1) and located above and below the protective shell (301), a plurality of telescopic sleeves (103) are fixedly connected to the top of the lower limit ring (102), the top of the plurality of telescopic sleeves (103) are fixedly connected to the bottom surface of the protective shell (301), an installation cavity is provided at the bottom of the protective shell (301), a filter screen (302) is fixedly installed inside the installation cavity, the bristles of the two brushes (701) are slidably connected to the bottom of the filter screen (302), and a plurality of air holes are provided through the top of the protective shell (301).

3. A flue gas treatment device for a biomass boiler according to claim 2, characterized in that: The inner bottom of the telescopic sleeve (103) is fixedly connected to a first spring (104), and the top of the first spring (104) is fixedly connected to the inner top of the telescopic sleeve (103).

4. The flue gas treatment device for a biomass boiler according to claim 1, characterized in that: A plurality of second springs (702) are fixedly connected to the inner bottom of the mounting shell (7), and the top ends of the plurality of second springs (702) are fixedly connected to the bottom of the brush (701).

5. The flue gas treatment device for a biomass boiler according to claim 2, characterized in that: The knocking assembly comprises two sliding sleeves (8), both of which are fixedly connected to the inner top of the smoke treatment chamber (1), and the inner side walls of the two sliding sleeves (8) are slidably connected to sliding rods (801), and the bottom ends of the sliding rods (801) extend through and extend to the outside of the sliding sleeves (8) and are fixedly connected to knocking balls (802), and the knocking balls (802) are located at the top of the protective shell (301), and the outer side wall of the rotating shaft (5) is fixedly connected to a lifting plate (803), and the bottom of the lifting plate (803) is slidably connected to the top of the protective shell (301), and the lifting plate (803) is arranged in a spiral ascending shape around the rotating shaft (5).

6. The flue gas treatment device for a biomass boiler according to claim 1, characterized in that: The outer walls of the plurality of scrapers (601) are slidably connected to the inner wall of the ash collecting hopper (4).

7. The flue gas treatment device for a biomass boiler according to claim 1, characterized in that: The material discharge assembly comprises a ash cleaning pipe (9), the ash cleaning pipe (9) is fixedly connected to the bottom of the ash collecting hopper (4), and a solenoid valve (901) is fixedly connected to the outer side wall of the ash cleaning pipe (9).

8. The flue gas treatment device for a biomass boiler according to claim 1, characterized in that: A motor (10) is fixedly mounted on the top of the smoke treatment chamber (1), and an output end of the motor (10) extends through the interior of the smoke treatment chamber (1) and is fixedly connected to the top end of the rotating shaft (5).

9. The flue gas treatment device for a biomass boiler according to claim 1, characterized in that: A plurality of legs (11) are fixedly connected to the bottom of the smoke treatment bin body (1) along the four sides.

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