Flue gas dry desulfurization device for biomass boiler

Abstract

The utility model discloses a flue gas dry desulfurization device for a biomass boiler, which comprises a square pipe, a flue gas inlet pipe is mounted on one side of the square pipe, a flue gas exhaust pipe is mounted on the other side of the square pipe, a flue gas exhaust fan is mounted in the flue gas exhaust pipe, a butt joint pipe is mounted in the flue gas inlet pipe, a flange pipe is mounted on one side of the butt joint pipe, and a flue gas outlet pipe is mounted on the other side of the flange pipe. And an activated carbon round rod is mounted in the butt joint pipe. The flue gas desulfurization device is provided with the flue gas inlet pipe, the flange pipe, the butt joint pipe, the activated carbon round rod, the through hole and the rubber ring, flue gas desulfurization treatment is achieved, the flue gas desulfurization device is small in size, compact in structure, small in occupied space, convenient to carry and low in cost, the flange pipe can be connected with a flue, flue gas can be directly conveyed into the butt joint pipe, and the flue gas desulfurization effect is improved. In cooperation with the arrangement of the activated carbon round rods and the through holes, the flue gas can uniformly penetrate through the interiors of the activated carbon round rods, and the activated carbon can adsorb sulfur dioxide in the flue gas so as to realize desulfurization treatment on the flue gas.

Description

Technical Field

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

[0002] A biomass boiler is a type of boiler that uses biomass energy as fuel. The fuel may include agricultural and forestry waste, such as wood chips, waste paper, straw, livestock and poultry manure, etc., which realizes the effective utilization of waste and reduces environmental pollution. During the use of a biomass boiler, the combustion of biomass will produce flue gas and be discharged into the atmosphere. The flue gas contains sulfide substances, which have a certain impact on the environment and human health. A flue gas dry desulfurization device is a device that uses powdered or granular adsorbents, absorbents or catalysts to remove sulfur dioxide from flue gas. The flue gas dry desulfurization device is large in size and has a complex structure. It is mostly used in large boilers or combustion equipment. A biomass boiler is small in size and is difficult to adapt to a flue gas dry desulfurization device. In addition, the flue gas dry desulfurization device is expensive and occupies a large space. Therefore, a flue gas dry desulfurization device for a biomass boiler is provided. Utility Model Content

[0003] The purpose of the utility model is to provide a flue gas dry desulfurization device for a biomass boiler to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas dry desulfurization device for a biomass boiler, comprising a square tube, a smoke inlet pipe is installed on one side of the square tube, a smoke exhaust pipe is installed on the other side of the square tube, and a smoke exhaust fan is installed inside the smoke exhaust pipe, a butt pipe is installed inside the smoke inlet pipe, and a flange pipe is installed on one side of the butt pipe, an activated carbon round rod is installed inside the butt pipe, and the activated carbon round rod is provided with a through hole inside.

[0005] Preferably, an outer side of the butt joint tube is provided with an external thread, an inner side of the smoke inlet pipe is provided with an internal thread matching the external thread, and a threaded connection is formed between the external thread and the smoke inlet pipe, and a rubber ring is provided on the inner side wall of the butt joint tube.

[0006] Preferably, the rubber rings are arranged in multiple groups, and the rubber rings are distributed at equal intervals inside the butt joint, and the inner diameter of the rubber ring is smaller than the outer diameter of the activated carbon rod.

[0007] Preferably, a limit frame is provided at the top end of the square tube, a mounting hole is provided at the top end of the square tube at an internal position of the limit frame, a fixing plate is installed inside the limit frame, and the fixing plate is provided at the top end of the mounting hole, the fixing plate is fixedly connected to the square tube by bolts, and a handle is installed at the top end of the fixing plate.

[0008] Preferably, a fixing frame is installed at the bottom end of the fixing plate, two groups of non-woven fabrics are installed inside the fixing frame, and calcium oxide is filled between the two groups of non-woven fabrics.

[0009] Preferably, three groups of the fixing frames are provided, and the fixing frames are arranged and distributed at the bottom end of the fixing plate, and the outer diameter of the fixing frames is matched with the inner diameter of the square tube.

[0010] Preferably, a pH sensor and a warning light are installed on the top of the square tube, and the pH sensor extends to the inside of the square tube.

[0011] Preferably, a controller is installed on the outside of the square tube, and the controller is electrically connected to the pH sensor and the warning light through wires.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) By providing a smoke inlet pipe, a flange pipe, a butt-joint pipe, an activated carbon round rod, a through hole and a rubber ring, the desulfurization treatment of flue gas is achieved. The device is small in size, compact in structure, occupies a small space, is easy to carry, and has a low cost. The flange pipe can be connected to the flue, and the flue gas will be directly transported to the inside of the butt-joint pipe. With the setting of the activated carbon round rod and the through hole, the flue gas will evenly pass through the inside of the activated carbon round rod. The activated carbon can absorb sulfur dioxide in the flue gas to achieve the desulfurization treatment of the flue gas.

[0014] (2) The smoke inlet pipe, the butt joint pipe, the rubber ring and the external thread are provided to realize the disassembly and assembly of the activated carbon round rod. The cooperation between the butt joint pipe and the rubber ring facilitates the disassembly and assembly and replacement of the activated carbon round rod. At the same time, the external thread is connected to the thread of the smoke inlet pipe, which facilitates the removal of the activated carbon round rod from the inside of the smoke inlet pipe, thereby improving the flexibility of use;

[0015] (3) By providing a mounting hole, a fixing plate, a fixing frame, a non-woven fabric and calcium oxide, further desulfurization treatment of the flue gas is achieved. The mounting hole and the fixing plate cooperate to fix the three sets of fixing frames inside the square tube. The non-woven fabric can block the calcium oxide without affecting the circulation of air. The operation of the smoke exhaust fan will generate suction to drive the flue gas to pass through the inside of the three sets of fixing frames. The calcium oxide between the non-woven fabrics can react with sulfur dioxide in the flue gas to further perform desulfurization treatment, thereby improving the desulfurization effect of the device;

[0016] (4) By providing a pH sensor, a warning light and a controller, the pH value of the flue gas can be monitored. The operation of the pH sensor can detect the alkalinity of the flue gas and send the detection information to the controller. The controller displays the pH value on the display screen according to the built-in system program. When a high acid value is detected, the controller will control the warning light to flash, reminding the operator to replace the activated carbon rod and the fixing frame, so that the device has a pH value detection function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a smoke inlet pipe of the utility model when viewed from above;

[0021] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a fixing frame of the utility model in a front view.

[0022] Description of reference numerals in the figures:

[0023] 1. Square tube; 2. Smoke inlet pipe; 3. Flange pipe; 4. Limit frame; 5. Handle; 6. PH value sensor; 7. Warning light; 8. Smoke exhaust pipe; 9. Controller; 10. Butt joint pipe; 11. Activated carbon round rod; 12. Mounting hole; 13. Fixing plate; 14. Smoke exhaust fan; 15. Fixing frame; 16. Through hole; 17. Rubber ring; 18. External thread; 19. Non-woven fabric; 20. Calcium oxide. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-4 The utility model provides an embodiment: a flue gas dry desulfurization device for a biomass boiler, comprising a square tube 1, a smoke inlet pipe 2 is installed on one side of the square tube 1, a smoke exhaust pipe 8 is installed on the other side of the square tube 1, and a smoke exhaust fan 14 is installed inside the smoke exhaust pipe 8, a butt joint pipe 10 is installed inside the smoke inlet pipe 2, and a flange pipe 3 is installed on one side of the butt joint pipe 10, an activated carbon round rod 11 is installed inside the butt joint pipe 10, and a through hole 16 is arranged inside the activated carbon round rod 11, and the outer side of the butt joint pipe 10 An external thread 18 is provided, and an internal thread matching the external thread 18 is provided inside the smoke inlet pipe 2, and a threaded connection is formed between the external thread 18 and the smoke inlet pipe 2. A rubber ring 17 is provided on the inner wall of the butt joint pipe 10, and multiple groups of rubber rings 17 are provided, and the rubber rings 17 are evenly spaced inside the butt joint pipe 10. The inner diameter of the rubber ring 17 is smaller than the outer diameter of the activated carbon round rod 11. The rubber ring 17 can embrace the outer wall of the activated carbon round rod 11 and fix the activated carbon round rod 11 inside the butt joint pipe 10;

[0027] Specifically, as shown in the figure, when in use, through the setting of the activated carbon round rod 11 and the through hole 16, the flue gas will be dispersed through the inside of the activated carbon round rod 11, and the activated carbon can adsorb sulfur dioxide in the flue gas to achieve desulfurization of the flue gas;

[0028] A limiting frame 4 is provided at the top of the square tube 1. A mounting hole 12 is provided at the top of the square tube 1 at the inner position of the limiting frame 4. A fixing plate 13 is installed inside the limiting frame 4, and the fixing plate 13 is arranged at the top of the mounting hole 12. The fixing plate 13 is fixedly connected to the square tube 1 through bolts. A handle 5 is installed at the top of the fixing plate 13. A fixing frame 15 is installed at the bottom of the fixing plate 13. Two groups of non-woven fabrics 19 are installed inside the fixing frame 15, and calcium oxide 20 is filled between the two groups of non-woven fabrics 19. Three groups of fixing frames 15 are provided, and the fixing frames 15 are arranged and distributed at the bottom of the fixing plate 13. The outer diameter of the fixing frame 15 is adapted to the inner diameter of the square tube 1. The non-woven fabric 19 can block the calcium oxide 20 without affecting the circulation of air.

[0029] Specifically, as shown in the figure, when in use, the three sets of fixing frames 15 can be fixed inside the square tube 1 through the cooperation of the mounting holes 12 and the fixing plates 13, and the operation of the smoke exhaust fan 14 will generate suction to drive the smoke to pass through the inside of the three sets of fixing frames 15, and the calcium oxide 20 between the non-woven fabrics 19 can react with the sulfur dioxide in the smoke;

[0030] A pH sensor 6 and a warning light 7 are installed at the top of the square tube 1. The pH sensor 6 extends to the inside of the square tube 1. A controller 9 is installed on the outside of the square tube 1. The controller 9 is electrically connected to the pH sensor 6 and the warning light 7 through wires.

[0031] Specifically, as shown in the figure, when in use, the alkalinity of the flue gas can be detected through the operation of the pH sensor 6, and the detection information is sent to the controller 9. The controller 9 displays the pH value on the display screen according to the built-in system program to monitor the pH value of the flue gas.

[0032] Working principle: When in use, first, the flue gas dry desulfurization device for biomass boiler is transported to the target area, the flange pipe 3 is connected to the flue of the biomass boiler, and the controller 9 is connected to the power supply. The controller 9 is operated to control the exhaust fan 14 to operate. The exhaust fan 14 will generate suction to accelerate the flow of flue gas inside the square tube 1. The flue gas will first be transported to the inside of the butt-joint tube 10. With the setting of the activated carbon round rod 11 and the through hole 16, the flue gas will be dispersed through the inside of the activated carbon round rod 11. The activated carbon can adsorb sulfur dioxide in the flue gas and perform preliminary desulfurization treatment. Then, the flue gas will enter The inside of the square tube 1 passes through three groups of fixed frames 15 in sequence. The calcium oxide 20 between the non-woven fabrics 19 can react with the sulfur dioxide in the flue gas to further perform desulfurization treatment. Then, the operation of the pH sensor 6 can detect the alkalinity of the flue gas and send the detection information to the controller 9. The controller 9 displays the pH value on the display screen according to the built-in system program. When a high acid value is detected, the controller 9 will control the warning light 7 to flash, reminding the operator to replace the activated carbon rod 11 and the fixed frame 15, and finally complete the use of the flue gas dry desulfurization device for the biomass boiler.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A flue gas dry desulfurization device for a biomass boiler, comprising a square tube (1), characterized in that: A smoke inlet pipe (2) is installed on one side of the square tube (1), a smoke exhaust pipe (8) is installed on the other side of the square tube (1), and a smoke exhaust fan (14) is installed inside the smoke exhaust pipe (8), a butt joint pipe (10) is installed inside the smoke inlet pipe (2), and a flange pipe (3) is installed on one side of the butt joint pipe (10), an activated carbon round rod (11) is installed inside the butt joint pipe (10), and a through hole (16) is provided inside the activated carbon round rod (11).

2. A flue gas dry desulfurization device for a biomass boiler according to claim 1, characterized in that: The outer side of the butt joint pipe (10) is provided with an external thread (18), the interior of the smoke inlet pipe (2) is provided with an internal thread matching the external thread (18), and a threaded connection is formed between the external thread (18) and the smoke inlet pipe (2), and a rubber ring (17) is provided on the inner side wall of the butt joint pipe (10).

3. A flue gas dry desulfurization device for a biomass boiler according to claim 2, characterized in that: The rubber rings (17) are arranged in multiple groups, and the rubber rings (17) are distributed at equal intervals inside the butt joint (10), and the inner diameter of the rubber ring (17) is smaller than the outer diameter of the activated carbon round rod (11).

4. A flue gas dry desulfurization device for a biomass boiler according to claim 1, characterized in that: A limit frame (4) is arranged at the top end of the square tube (1); a mounting hole (12) is arranged at the top end of the square tube (1) at an internal position of the limit frame (4); a fixing plate (13) is installed inside the limit frame (4); the fixing plate (13) is arranged at the top end of the mounting hole (12); the fixing plate (13) is fixedly connected to the square tube (1) by bolts; and a handle (5) is installed at the top end of the fixing plate (13).

5. A flue gas dry desulfurization device for a biomass boiler according to claim 4, characterized in that: A fixing frame (15) is installed at the bottom end of the fixing plate (13), two groups of non-woven fabrics (19) are installed inside the fixing frame (15), and calcium oxide (20) is filled between the two groups of non-woven fabrics (19).

6. A flue gas dry desulfurization device for a biomass boiler according to claim 5, characterized in that: The fixing frames (15) are provided in three groups, and the fixing frames (15) are arranged and distributed at the bottom end of the fixing plate (13), and the outer diameter of the fixing frames (15) is adapted to the inner diameter of the square tube (1).

7. The flue gas dry desulfurization device for a biomass boiler according to claim 1, characterized in that: A pH sensor (6) and a warning light (7) are installed on the top of the square tube (1), and the pH sensor (6) extends into the interior of the square tube (1).

8. The flue gas dry desulfurization device for a biomass boiler according to claim 1, characterized in that: A controller (9) is installed on the outer side of the square tube (1), and the controller (9) is electrically connected to the pH value sensor (6) and the warning light (7) through wires.

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