Smoke purifying and ventilating device for coal desulfurization

Abstract

The utility model relates to the technical field of coal desulfurization ventilation equipment, in particular to a smoke purification ventilation device for coal desulfurization, which comprises a ventilation barrel, the bottom of the ventilation barrel is communicated with an air inlet barrel, a first rotatable air partition plate and a second rotatable air partition plate are mounted in an inner cavity of the ventilation barrel, and the first air partition plate and the second air partition plate are respectively arranged on two sides of the air inlet barrel. An air adjusting assembly for driving the first air partition plate and the second air partition plate to rotate is arranged at the top of the ventilation barrel, flue gas sensors are fixedly mounted on the inner sides of the first air partition plate and the second air partition plate, and the two ends of the ventilation barrel communicate with a first air outlet barrel connected with dust removal equipment and a second air outlet barrel and a third air outlet barrel connected with deacidification equipment. According to the utility model, harmful gas and particulate matters in the flue gas can be treated in a distributed manner, so that the flue gas purification capacity of the deacidification equipment is ensured, the flue gas discharged into the atmosphere is ensured to meet the emission standard, and threats to the environment and human health are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal desulfurization ventilation equipment, and specifically discloses a smoke purification ventilation device for coal desulfurization. Background Art

[0002] Coal-fired power plants are an important source of energy supply, but they emit a large amount of sulfur dioxide during the combustion process, which poses a threat to the environment and human health. In order to reduce sulfur dioxide emissions during the combustion process, coal-fired power plants usually use desulfurization processes to treat flue gas. The concentration of sulfur dioxide in the flue gas after desulfurization is greatly reduced, so it is more in line with environmental protection requirements; however, the flue gas after desulfurization still contains other harmful gases and particulate matter, which requires further treatment with smoke purification equipment; currently commonly used smoke purification equipment includes: electrostatic precipitator, bag filter-related dust removal equipment, and deacidification equipment for removing nitrogen oxides.

[0003] The utility model patent with announcement number: CN217490400U discloses a coal desulfurization waste gas absorption and treatment equipment, including an alkali washing tower, a clean water inlet pipe is connected to the left side of the alkali washing tower, an alkali liquid pool is arranged on the right side of the alkali washing tower, and a circulating water pump is connected to the left side of the alkali liquid pool through a connecting pipe; the right side of the buffer box is connected to the alkali washing tower through a connecting air pipe, a nylon filter screen and an activated carbon filter screen are fixedly connected to the inside of the buffer box, a water-gas mixing box is fixedly connected to the upper part of the buffer box, and a nozzle extending into the inside of the buffer box is fixedly connected to the lower part of the water-gas mixing box.

[0004] In the disclosed patent technology, the flue gas after coal desulfurization can be alkali-washed and desulfurized by alkaline water in an alkali washing tower and an alkali liquid pool, thereby achieving the purpose of smoke purification; since the flue gas contains not only acidic gases such as nitrogen oxides, but also fine particulate pollutants, and the device in the above patent is not designed with a separation structure for harmful gases and particulate matter, the adsorption capacity of the nylon filter and the activated carbon filter will be reduced under the long-term impact of fine particulate pollutants, and some fine particulate pollutants will directly enter the alkali washing tower and the alkali liquid pool, reducing the alkali washing and desulfurization capacity of the entire device, and greatly reducing its smoke purification capacity, so that the flue gas containing harmful gases and particulate matter is emitted into the atmosphere, thereby posing a threat to the environment and human health. Utility Model Content

[0005] Aiming at the problem that the current coal desulfurization flue gas treatment equipment has no separation structure for harmful gases and particulate matter, resulting in poor smoke purification ability, the utility model provides a smoke purification ventilation device for coal desulfurization.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A smoke purification ventilation device for coal desulfurization comprises a ventilation duct, the bottom of which is connected to an air inlet duct, a rotatable first air baffle and a second air baffle are installed in the inner cavity of the ventilation duct, the first air baffle and the second air baffle are respectively arranged on both sides of the air inlet duct, an air regulating assembly for driving the first air baffle and the second air baffle to rotate is provided on the top of the ventilation duct, a flue gas sensor is fixedly installed on the inner side of the first air baffle and the second air baffle, one end of the ventilation duct is connected to a first air outlet duct connected to a dust removal device, the other end of the ventilation duct is connected to a second air outlet duct and a third air outlet duct, the second air outlet duct and the third air outlet duct are both connected to a deacidification device.

[0008] Preferably, the ventilation duct is a square duct, the first air outlet duct, the second air outlet duct and the third air outlet duct are all circular ducts, and both ends of the ventilation duct are fixedly connected with a buffer duct, one end of the buffer duct is a square end surface, and the other end of the buffer duct is a circular end surface.

[0009] Preferably, a rotating shaft is fixedly installed in the first wind shield plate and the second wind shield plate, and the rotating shaft is rotatably installed in the inner cavity of the ventilation cylinder. A shell is fixedly installed on the top of the ventilation cylinder, and the air regulating assembly is arranged in the shell.

[0010] Preferably, the air adjustment assembly includes a hydraulic cylinder fixedly mounted on the top of the ventilation cylinder, the hydraulic cylinder is provided with a first piston rod and a second piston rod which are telescopically extended in opposite directions, the ends of the first piston rod and the second piston rod are connected with a connecting rod structure, the connecting rod structure is fixedly connected with a rod sleeve, a sliding rod is installed in the rod sleeve, a guide rail is provided at the bottom of the sliding rod, a sliding groove which slides with the sliding rod is provided in the guide rail, a connecting plate is fixedly mounted on the outer wall of the rod sleeve, and the connecting plate is rotatably connected to the rod sleeve.

[0011] Preferably, the slide groove is an arc-shaped structure, the bottom of the slide rod is provided with a frustum in contact with the slide groove, and both ends of the slide groove are provided with circular grooves matching with the frustum.

[0012] Preferably, a plurality of grooves are provided on the inner wall of the slide groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The first wind baffle, the second wind baffle and the air regulating assembly in the utility model cooperate to adjust the flow direction of the smoke in the inner cavity of the ventilator, and judge whether the concentration of fine particulate pollutants in the smoke meets the standard under the induction and recognition of the smoke sensor, so as to perform distributed treatment on the harmful gases and particulate matter in the smoke, thereby ensuring the smoke purification capacity of the deacidification equipment, ensuring that the smoke discharged into the atmosphere meets the emission standards, and avoiding threats to the environment and human health;

[0015] 2. The utility model can ensure that the first wind baffle and the second wind baffle are respectively in an on and off state by setting a matching structure between the hydraulic cylinder and the first piston rod and the second piston rod, so as to selectively circulate the smoke in the inner cavity of the ventilator, which not only improves the flexibility of the overall device, but also reduces the space occupied by the air adjustment component. It has high practicality and therefore has very broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the utility model, the following will briefly introduce the drawings required for the description. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall device structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the air regulating assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the air regulating component of the utility model;

[0020] Figure 4 This is a schematic diagram of the guide rail structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the frustum structure of the utility model;

[0022] In the figure: 1. ventilator, 2. air inlet, 3. first air baffle, 4. second air baffle, 5. air adjustment assembly, 501. hydraulic cylinder, 502. first piston rod, 503. second piston rod, 504. connecting rod structure, 505. rod sleeve, 506. slide rod, 507. guide rail, 508. slide groove, 509. connecting plate, 510. cone, 511. circular groove, 512. groove. 6. smoke sensor, 7. first air outlet, 8. second air inlet, 9. third air outlet, 10. buffer air duct, 11. rotating shaft, 12. housing. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] This specific embodiment provides a smoke purification ventilation device for coal desulfurization, such as Figure 1-Figure 5 As shown, it includes a ventilation tube 1, the bottom of which is connected to an air inlet 2, which can be connected to the air outlet of the coal desulfurization equipment, so that the flue gas generated after coal desulfurization directly enters the device from the air inlet 2. One end of the ventilation tube 1 is connected to a first air outlet 7 connected to a dust removal device, which can remove and adsorb fine pollutant particles in the flue gas; the other end of the ventilation tube 1 is connected to a second air outlet 8 and a third air outlet 9, which are both connected to a deacidification device, which can catalytically reduce acidic gases such as nitrogen oxides in the flue gas, thereby ensuring that the flue gas meets the emission standards.

[0025] Two rotatable shafts 11 are installed in the inner cavity of the ventilation tube 1. The two shafts 11 are symmetrically arranged on both sides of the air inlet tube 2. Bearings are installed between the two ends of the shaft 11 and the ventilation tube 1, so as to ensure that the shaft 11 can rotate in the inner cavity of the ventilation tube. A windshield is fixedly installed on the outer wall of each shaft 11. The first windshield 3 is installed on the shaft 11 on one side, and the second windshield 4 is installed on the shaft 11 on the other side. The first windshield 3 and the second windshield 4 can be rotated in the inner cavity of the ventilation tube 1 under the action of the shaft 11, so as to control the flow direction of the smoke in the ventilation tube 1.

[0026] The top of the rotating shaft 11 protrudes out of the ventilating tube 1, and an air regulating assembly 5 is installed at the top of the rotating shaft 11. The air regulating assembly 5 is arranged in a housing 12, and the housing 12 is fixedly installed on the upper surface of the ventilating tube 1. By arranging the housing 12 outside the air regulating assembly 5, the air regulating assembly 5 can be fully protected to prevent the external environment from affecting the air regulating assembly 5. The air regulating assembly 5 includes a hydraulic cylinder 501 fixedly installed on the top of the ventilating tube 1. The hydraulic cylinder 501 is a double-acting double-rod hydraulic cylinder. The first piston rod 502 and the second piston rod 503 are respectively arranged at both ends of the hydraulic cylinder 501. Since two oil cylinders are arranged in the hydraulic cylinder 501, the first piston rod 502 and the second piston rod 503 can perform reverse telescopic movement through the compression and expansion of hydraulic oil in the cylinder body. When the first piston rod 502 is extended, the second piston rod 503 is retracted into the cylinder body of the hydraulic cylinder 501. Conversely, when the second piston rod 503 is extended, the first piston rod 502 is retracted into the cylinder body of the hydraulic cylinder 501. The ends of the first piston rod 502 and the second piston rod 503 are both connected with a connecting rod structure 504; the connecting rod structure 504 is formed by hinged two connecting rods, one end of the connecting rod structure 504 is hinged with the first piston rod 502 and the second piston rod 503, and the other end of the connecting rod structure 504 is fixedly provided with a circular ring, the interior of which is fixedly connected with a rod sleeve 505, the rod sleeve 505 is provided with an inner cavity, and a slide rod 506 is installed in the inner cavity. A guide rail 507 is provided at the bottom of the slide rod 506, the guide rail 507 is fixedly installed on the top surface of the ventilator 1, and a slide groove 508 is provided in the guide rail 507 to slide with the slide rod 506, and a connecting plate 509 is fixedly sleeved on the outer wall of the rod sleeve 505, and the connecting plate 509 is rotatably connected with the rod sleeve 505. The hydraulic cylinder 501 can control the extension and retraction of the first piston rod 502 and the second piston rod 503, and under the transmission cooperation of the connecting rod structure 504, the sliding rod 506 can slide along the sliding groove 508 of the guide rail 507, so that with the cooperation of the connecting plate 509, the rotating shaft 11 can be rotated, thereby controlling the first wind baffle plate 3 and the second wind baffle plate 4 to rotate in the inner cavity of the ventilation duct 1, so as to control the flow direction of the smoke in the ventilation duct 1.

[0027] The slide groove 508 is an arc-shaped structure, and a frustum 510 in contact with the slide groove 508 is provided at the bottom of the slide bar 506. The two ends of the slide groove 508 are provided with circular grooves 511 that match the frustum 510. The frustum 510 can be placed in the circular grooves 511, thereby ensuring that the slide bar 506 can maintain stability when sliding to the two ends of the slide groove 508. In addition, a plurality of grooves 512 are provided on the inner wall of the slide groove 508. The design structure of the grooves 512 can match the rotation angle of the first wind baffle 3 and the second wind baffle 4, thereby ensuring the stability of the first wind baffle 3 and the second wind baffle 4 when opening and closing.

[0028] The inner sides of the first wind baffle 3 and the second wind baffle 4 are fixedly installed with a flue gas sensor 6, which can sense and identify the flue gas in the ventilation duct 1, so as to determine whether the fine pollutant particles in the flue gas exceed the standard; if the fine pollutant particles exceed the established standard, the flue gas sensor 6 on the first wind baffle 3 can control the first wind baffle 3 to open through the hydraulic cylinder 501, and introduce the flue gas from the first air outlet 7 to the dust removal equipment; if the fine pollutant particles do not exceed the established standard, the flue gas sensor 6 on the second wind baffle 4 can control the second wind baffle 4 to open through the hydraulic cylinder 501, and introduce the flue gas from the second air outlet 8 and the third air outlet 9 to the deacidification equipment.

[0029] In addition, the ventilation duct 1 is a square duct, and the air inlet duct 2, the first air outlet duct 7, the second air outlet duct 8, and the third air outlet duct 9 are all circular ducts; since the ventilation duct 1 is the main structure of the overall device, the square duct structure is adopted, which not only facilitates the installation of the ventilation duct 1, but also reduces the flue gas flow rate in the inner cavity of the ventilation duct 1, thereby ensuring that the smoke sensor 6 has sufficient response time; both ends of the ventilation duct 1 are fixedly connected with a buffer duct 10, one end of the buffer duct 10 is a square end face, and the other end of the buffer duct 10 is a circular end face; the buffer duct 10 effectively reduces the impact of smoke on the first air outlet duct 7, the second air outlet duct 8, and the third air outlet duct 9, thereby ensuring the smoothness of smoke circulation.

[0030] The working principle of the utility model is:

[0031] The flue gas in the coal desulfurization equipment can enter the ventilation duct 1 through the air inlet 2. After the ventilation duct 1 is filled with flue gas, the flue gas sensor 6 fixedly installed on the inner side of the first air baffle 3 and the second air baffle 4 can sense and identify the flue gas, so as to determine whether the fine pollutant particles in the flue gas exceed the standard; if it exceeds the standard, the first air baffle 3 is opened and the second air baffle 4 is closed, so that the flue gas enters the dust removal equipment through the first air outlet 7 for dust removal, and the operator can connect the air outlet of the dust removal equipment with the deacidification equipment, so that the dust-removed flue gas enters the deacidification equipment for deacidification treatment; if it does not exceed the standard, the first air baffle 3 is closed and the second air baffle 4 is opened, so that the flue gas enters the deacidification equipment through the second air outlet 8 and the third air outlet 9, and the deacidified flue gas can be directly discharged into the atmosphere, thereby avoiding threats to the environment and human health.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smoke purification ventilation device for coal desulfurization, comprising a ventilation tube (1), characterized in that: The bottom of the ventilation duct (1) is connected to the air inlet duct (2), and a rotatable first air baffle (3) and a second air baffle (4) are installed in the inner cavity of the ventilation duct (1). The first air baffle (3) and the second air baffle (4) are arranged on both sides of the air inlet duct (2), respectively. The top of the ventilation duct (1) is provided with an air regulating component (5) for driving the first air baffle (3) and the second air baffle (4) to rotate. The inner sides of the first air baffle (3) and the second air baffle (4) are fixedly installed with a smoke sensor (6). One end of the ventilation duct (1) is connected to a first air outlet duct (7) connected to a dust removal device, and the other end of the ventilation duct (1) is connected to a second air outlet duct (8) and a third air outlet duct (9), and the second air outlet duct (8) and the third air outlet duct (9) are both connected to a deacidification device.

2. A smoke purification ventilation device for coal desulfurization according to claim 1, characterized in that: The ventilation duct (1) is a square duct, the first air outlet duct (7), the second air outlet duct (8) and the third air outlet duct (9) are all circular ducts, and both ends of the ventilation duct (1) are fixedly connected to a buffer duct (10), one end of the buffer duct (10) is a square end surface, and the other end of the buffer duct (10) is a circular end surface.

3. A smoke purification ventilation device for coal desulfurization according to claim 1, characterized in that: A rotating shaft (11) is fixedly mounted inside the first wind baffle plate (3) and the second wind baffle plate (4); the rotating shaft (11) is rotatably mounted in the inner cavity of the ventilator (1); a shell (12) is fixedly mounted on the top of the ventilator (1); and the air regulating assembly (5) is arranged inside the shell (12).

4. A smoke purification ventilation device for coal desulfurization according to claim 3, characterized in that: The air adjustment component (5) comprises a hydraulic cylinder (501) fixedly mounted on the top of the ventilation tube (1); the hydraulic cylinder (501) is provided with a first piston rod (502) and a second piston rod (503) which are telescopic in opposite directions; the ends of the first piston rod (502) and the second piston rod (503) are both connected to a connecting rod structure (504); the connecting rod structure (504) is fixedly connected to a rod sleeve (505); a sliding rod (506) is installed in the rod sleeve (505); a guide rail (507) is provided at the bottom of the sliding rod (506); a sliding groove (508) which is slidably matched with the sliding rod (506) is provided in the guide rail (507); a connecting plate (509) is fixedly mounted on the outer wall of the rod sleeve (505); the connecting plate (509) is rotatably connected to the rod sleeve (505).

5. A smoke purification ventilation device for coal desulfurization according to claim 4, characterized in that: The slide groove (508) is an arc-shaped structure. The bottom of the slide rod (506) is provided with a frustum (510) in contact with the slide groove (508). Both ends of the slide groove (508) are provided with circular grooves (511) matching with the frustum (510).

6. A smoke purification ventilation device for coal desulfurization according to claim 5, characterized in that: A plurality of grooves (512) are formed on the inner wall of the slide groove (508).

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