Desulfurization boiler

Abstract

The utility model relates to the technical field of boilers and discloses a desulfurization boiler which comprises a boiler body, an air inlet is fixedly installed at the bottom of the boiler body, an air outlet is fixedly installed at the top of the boiler body, a liquid inlet is fixedly installed at the top of the left side of the boiler body, and a liquid outlet is fixedly installed at the bottom of the left side of the boiler body. A servo motor is fixedly mounted on the outer wall of the furnace body, and a desulfurization mechanism is arranged in the furnace body. According to the desulfurization boiler, in order to improve the flue gas desulfurization efficiency and quality, a desulfurization mechanism is arranged, desulfurization reaction liquid is injected through a liquid inlet, the liquid flows to a reaction liquid storage plate through a liquid inlet block, the height of the retained liquid level is controlled through a liquid level limiting plate, flue gas is injected through a gas inlet, and therefore a mixing floating valve is pushed to rise; flue gas is sprayed out through the flow guide groove to drive the mixing float valve to rotate, then the flue gas and liquid are driven to be fully mixed and react, the desulfurization working efficiency of the boiler is improved, and the desulfurization quality of the flue gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a desulfurization boiler. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler is in the form of chemical energy in the fuel, electrical energy, thermal energy of high-temperature flue gas, etc. After conversion by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. It is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. Boilers often produce sulfides during combustion.

[0003] The sulfur contained in the fuel in coal-fired boilers will be oxidized into sulfur dioxide during the combustion process, which is one of the main sources of air pollution. The desulfurization method is to convert sulfur dioxide into sulfate or sulfuric acid by reacting it with certain chemical reagents, thereby achieving the purpose of desulfurization. Commonly used desulfurization methods include wet desulfurization and dry desulfurization.

[0004] Among them, the working principle of wet desulfurization is to contact the flue gas with a certain concentration of calcium hydroxide or sodium hydroxide solution, so that the sulfur dioxide inside the flue gas reacts to produce calcium sulfate and sodium persulfate, thereby achieving the purpose of desulfurization. The general desulfurization boiler can react with a small amount of flue gas at the same time, and the desulfurization quality is not high. In view of this, we proposed a desulfurization boiler. Utility Model Content

[0005] The purpose of the utility model is to provide a desulfurization boiler to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a desulfurization boiler, comprising a furnace body, an air inlet is fixedly installed at the bottom of the furnace body, an air outlet is fixedly installed at the top of the furnace body, a liquid inlet is fixedly installed at the top of the left side of the furnace body, a liquid outlet is fixedly installed at the bottom of the left side of the furnace body, a servo motor is fixedly installed on the outer wall of the furnace body, a desulfurization mechanism is arranged inside the furnace body, and the desulfurization mechanism includes:

[0007] A liquid inlet block, the liquid inlet block is fixedly mounted on the inner wall of the furnace body, and a reaction liquid storage plate is fixedly mounted on the bottom of the liquid inlet block;

[0008] A liquid level limiting plate, the liquid level limiting plate is fixedly mounted on the top of the reaction liquid storage plate, and a mixing float valve is slidably connected to the inner wall of the reaction liquid storage plate;

[0009] A guide groove is provided at the bottom of the mixing float valve, and a limiting slider is fixedly installed at the bottom of the mixing float valve.

[0010] Preferably, the liquid inlet and the liquid outlet both pass through the furnace body, the top of the liquid inlet block is fixedly installed with the bottom of the liquid inlet, and a liquid through hole is provided on the bottom of the liquid inlet block away from the furnace body. The setting of the liquid inlet block facilitates the control of the reaction liquid flowing to the reaction liquid storage plate.

[0011] Preferably, the height of the liquid level limiting plate matches the height of the liquid through hole at the bottom of the liquid inlet block, the reaction liquid storage plates are provided with multiple groups, and multiple groups of mixing float valves are provided on the top of the reaction liquid storage plates. The setting of the liquid level limiting plate facilitates the control of the liquid level height of the liquid stored in the reaction liquid storage plate.

[0012] Preferably, the guide grooves are provided in multiple groups, and the guide grooves are provided obliquely. The height of the limit slider matches the height of the liquid level limiting plate, and the reaction liquid storage plates are arranged in a staggered manner inside the furnace body. Through the arrangement of the guide grooves, it is convenient to drive the mixing float valve to rotate, thereby improving the mixing efficiency of the ejected gas and liquid.

[0013] Preferably, a collecting mechanism is provided on the front and rear sides of the reaction liquid storage plate, and the collecting mechanism includes a transmission worm, which is fixedly mounted on the outer wall of the servo motor output shaft, and a reciprocating screw is meshed on the outer wall of the transmission worm, and the reciprocating screw is threadedly connected to a collecting scraper. The setting of the collecting scraper facilitates the collection of crystals generated by the reaction.

[0014] Preferably, collecting grooves are fixedly installed on the front and rear sides of the furnace body, a sealing plate is slidably connected to the inner wall of the collecting groove, a telescopic connecting rod is hinged on the sealing plate close to the side of the furnace body, a spring limit block is fixedly installed on the bottom of the collecting groove, a filter collecting box is fixedly installed on the outer wall of the spring limit block, and a filter plate is fixedly installed on the inner wall of the filter collecting box. The arrangement of the sealing plate facilitates the storage of the reaction liquid.

[0015] Compared with the prior art, the utility model provides a desulfurization boiler with the following beneficial effects:

[0016] 1. In order to improve the efficiency and quality of flue gas desulfurization, the desulfurization boiler is provided with a desulfurization mechanism. The desulfurization reaction liquid is injected through the liquid inlet. The liquid flows to the reaction liquid storage plate through the liquid inlet block. The retained liquid level is controlled by the liquid level limiting plate. The flue gas is injected through the air inlet, thereby pushing the mixing float valve to rise. The flue gas is ejected through the guide groove, driving the mixing float valve to rotate, and then driving the flue gas and liquid to fully mix and react, thereby improving the desulfurization efficiency of the boiler and improving the desulfurization quality of the flue gas.

[0017] 2. In order to prevent the crystals produced by the reaction from clogging the vent, the desulfurization boiler is provided with a collecting mechanism. The servo motor is started to drive the transmission worm to rotate, thereby driving the reciprocating screw to rotate, and then driving the collecting scraper to move. The collecting scraper drives the telescopic connecting rod to control the sealing plate to move downward. The crystals collected by the collecting scraper enter the filter collection box through the collecting groove, and the crystals are separated from the solid and liquid through the filter plate, which is convenient for scraping and collecting the crystals produced by the reaction, thereby improving the utilization efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the desulfurization mechanism of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the hybrid float valve of the utility model when viewed from above;

[0021] Figure 4 This is a schematic diagram of the explosion structure of the collection mechanism of the utility model;

[0022] Figure 5 This is a schematic diagram of the filter inner cavity structure of the collection mechanism of the utility model.

[0023] In the figure: 1. furnace body; 2. air inlet; 3. air outlet; 4. liquid inlet; 5. liquid outlet; 6. servo motor; 7. desulfurization mechanism; 71. liquid inlet block; 72. reaction liquid storage plate; 73. liquid level limiting plate; 74. mixing float valve; 75. guide groove; 76. limit slider; 8. collecting mechanism; 81. transmission worm; 82. reciprocating screw; 83. collecting scraper; 84. collecting trough; 85. sealing plate; 86. telescopic connecting rod; 87. spring limit block; 88. filter collection box; 89. filter plate. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-5The utility model provides a technical solution: a desulfurization boiler comprises a furnace body 1, an air inlet 2 is fixedly installed at the bottom of the furnace body 1, an air outlet 3 is fixedly installed at the top of the furnace body 1, a liquid inlet 4 is fixedly installed at the top of the left side of the furnace body 1, a liquid outlet 5 is fixedly installed at the bottom of the left side of the furnace body 1, a servo motor 6 is fixedly installed on the outer wall of the furnace body 1, a desulfurization mechanism 7 is arranged inside the furnace body 1, the desulfurization mechanism 7 comprises a liquid inlet block 71, the liquid inlet block 71 is fixedly installed on the inner wall of the furnace body 1, a reaction liquid storage plate 72 is fixedly installed at the bottom of the liquid inlet block 71, a liquid level limiting plate 73 is fixedly installed on the top of the reaction liquid storage plate 72, a liquid through groove is opened on the right side of the reaction liquid storage plate 72, and the bottom of the liquid through groove is fixedly connected to the top of another group of liquid inlet blocks 71, a mixing float valve 74 is slidably connected to the inner wall of the reaction liquid storage plate 72, a guide groove 75 is opened at the bottom of the mixing float valve 74, and a limiting slider 76 is fixedly installed at the bottom of the mixing float valve 74.

[0026] See also Figure 2-3 In one embodiment of the utility model, the liquid inlet 4 and the liquid outlet 5 are both through the furnace body 1, the top of the liquid inlet block 71 is fixedly installed with the bottom of the liquid inlet 4, and a liquid through hole is provided at the bottom of the liquid inlet block 71 away from the furnace body 1. Through the setting of the liquid inlet block 71, it is convenient to control the reaction liquid to flow to the reaction liquid storage plate 72. The height of the liquid level limiting plate 73 matches the height of the liquid through hole at the bottom of the liquid inlet block 71. The liquid flows to the reaction liquid storage plate 72 through the liquid inlet block 71, and the height of the retained liquid level is controlled by the liquid level limiting plate 73. The reaction liquid storage plate 72 is provided with multiple groups, and multiple groups of mixing float valves 74 are provided on the top of the reaction liquid storage plate 72. Flue gas is injected through the air inlet 2, thereby promoting The mixing float valve 74 rises, and through the setting of the liquid level limiting plate 73, it is convenient to control the liquid level height of the reaction liquid storage plate 72 to store the liquid, and control the ejected gas to fully mix and react with the liquid. There are multiple groups of guide grooves 75, and the guide grooves 75 are set obliquely. The flue gas is ejected through the guide grooves 75, driving the mixing float valve 74 to rotate, and then driving the flue gas and liquid to fully mix and react. The height of the limiting slider 76 matches the height of the liquid level limiting plate 73. The reaction liquid storage plate 72 is staggered inside the furnace body 1. Through the setting of the guide grooves 75, it is convenient to drive the mixing float valve 74 to rotate through the direction of the ejected airflow, thereby improving the mixing efficiency of the ejected gas and liquid.

[0027] See also Figure 4-5In one embodiment of the utility model, a collecting mechanism 8 is provided on both sides of the front and rear of the reaction liquid storage plate 72. The collecting mechanism 8 includes a transmission worm 81, which is fixedly mounted on the outer wall of the output shaft of the servo motor 6. A reciprocating screw 82 is meshed on the outer wall of the transmission worm 81. The servo motor 6 is started to drive the transmission worm 81 to rotate, thereby driving the reciprocating screw 82 to rotate, and then driving the collecting scraper 83 to move. The reciprocating screw 82 is threadedly connected with the collecting scraper 83. An inclined filter block is provided at the bottom of the collecting scraper 83, which is convenient for controlling the rise of the mixing float valve 74 to fall and scrape and collect the crystals on the surface of the mixing float valve 74. The setting of the collecting scraper 83 facilitates the collection of the crystals generated by the reaction to prevent the excessive crystals from reducing the desulfurization reaction efficiency. A collecting slot 84 is fixedly mounted on both sides of the front and rear of the furnace body 1. A sealing plate 85 is slidably connected to the inner wall of the collecting slot 84, and the collecting scraper 83 drives the telescopic connecting rod 86 to control the sealing. The sealing plate 85 moves down, and a telescopic connecting rod 86 is hinged on the side of the sealing plate 85 close to the furnace body 1, so that the telescopic connecting rod 86 can be squeezed by the moving collecting scraper 83, thereby driving the sealing plate 85 to move down and leak out of the collecting groove 84. A spring limit block 87 is fixedly installed at the bottom of the collecting groove 84, and the sealing plate 85 is limited by the spring limit block 87. A filter collection box 88 is fixedly installed on the outer wall of the spring limit block 87. The crystals collected by the collecting scraper 83 enter the filter collection box 88 through the collecting groove 84. The bottom of the filter collection box 88 is connected to the outer wall of the furnace body 1, and the separated liquid flows into the reaction liquid storage plate 72 of the next layer. The bottom of the filter collection box 88 at the bottom is connected to the liquid outlet 5. A filter plate 89 is fixedly installed on the inner wall of the filter collection box 88, and the crystals are separated from the solid by the filter plate 89. The setting of the sealing plate 85 is convenient for storing the reaction liquid to prevent the liquid from flowing into the filter collection box 88.

[0028] Working principle: desulfurization reaction liquid is injected through the liquid inlet 4, and the liquid flows to the reaction liquid storage plate 72 through the liquid inlet block 71. The retained liquid level is controlled by the liquid level limiting plate 73, and flue gas is injected through the air inlet 2, thereby pushing the mixing float valve 74 to rise. The flue gas is ejected through the guide groove 75, driving the mixing float valve 74 to rotate, and then driving the flue gas and liquid to fully mix and react, and starting the servo motor 6 to drive the transmission worm 81 to rotate, thereby driving the reciprocating screw 82 to rotate, and then driving the collection scraper 83 to move, and cooperate with the collection scraper 83 to drive the telescopic connecting rod 86 to control the sealing plate 85 to move downward, and the crystals collected by the collection scraper 83 enter the filter collection box 88 through the collection groove 84, and the crystals are separated from the solid by the filter plate 89.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A desulfurization boiler, comprising a furnace body (1), characterized in that: An air inlet (2) is fixedly mounted on the bottom of the furnace body (1), an air outlet (3) is fixedly mounted on the top of the furnace body (1), a liquid inlet (4) is fixedly mounted on the top of the left side of the furnace body (1), a liquid outlet (5) is fixedly mounted on the bottom of the left side of the furnace body (1), a servo motor (6) is fixedly mounted on the outer wall of the furnace body (1), and a desulfurization mechanism (7) is arranged inside the furnace body (1), and the desulfurization mechanism (7) comprises: A liquid inlet block (71), the liquid inlet block (71) being fixedly mounted on the inner wall of the furnace body (1), and a reaction liquid storage plate (72) being fixedly mounted on the bottom of the liquid inlet block (71); A liquid level limiting plate (73), wherein the liquid level limiting plate (73) is fixedly mounted on the top of the reaction liquid storage plate (72), and a mixing float valve (74) is slidably connected to the inner wall of the reaction liquid storage plate (72); A guide groove (75) is provided at the bottom of the mixing float valve (74), and a limit slider (76) is fixedly installed at the bottom of the mixing float valve (74).

2. A desulfurization boiler according to claim 1, characterized in that: The liquid inlet (4) and the liquid outlet (5) both pass through the furnace body (1); the top of the liquid inlet block (71) is fixedly mounted to the bottom of the liquid inlet (4); and a liquid through hole is provided on the side of the bottom of the liquid inlet block (71) away from the furnace body (1).

3. A desulfurization boiler according to claim 2, characterized in that: The height of the liquid level limiting plate (73) matches the height of the liquid through hole at the bottom of the liquid inlet block (71), and the reaction liquid storage plate (72) is provided with multiple groups, and multiple groups of mixing float valves (74) are provided on the top of the reaction liquid storage plate (72).

4. A desulfurization boiler according to claim 3, characterized in that: The guide grooves (75) are provided in multiple groups, and the guide grooves (75) are arranged obliquely. The height of the limit slider (76) matches the height of the liquid level limiting plate (73), and the reaction liquid storage plates (72) are arranged in a staggered manner inside the furnace body (1).

5. A desulfurization boiler according to claim 1, characterized in that: The reaction liquid storage plate (72) is provided with a collection mechanism (8) on both sides thereof, the collection mechanism (8) comprising a transmission worm (81), the transmission worm (81) being fixedly mounted on the outer wall of the output shaft of the servo motor (6), the outer wall of the transmission worm (81) being meshed with a reciprocating screw (82), and the reciprocating screw (82) being threadedly connected with a collection scraper (83).

6. A desulfurization boiler according to claim 5, characterized in that: The furnace body (1) is fixedly provided with a collecting groove (84) on both the front and rear sides; a sealing plate (85) is slidably connected to the inner wall of the collecting groove (84); a telescopic connecting rod (86) is hingedly connected to the side of the sealing plate (85) close to the furnace body (1); a spring stop block (87) is fixedly provided at the bottom of the collecting groove (84); a filter collecting box (88) is fixedly provided on the outer wall of the spring stop block (87); and a filter plate (89) is fixedly provided on the inner wall of the filter collecting box (88).

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