Boiler dust remover with graded filtering structure

Abstract

The utility model discloses a boiler dust remover with a graded filtering structure, which belongs to the technical field of boiler dust removal and comprises a shell, an air inlet pipe is fixed below the left side of the shell, an exhaust pipe is fixedly connected below the right side of the shell, and a slag discharge pipe is mounted at the bottom of the exhaust pipe. The right side of the shell is in bolted connection with a motor above the exhaust pipe, and the left side of the shell is in bolted connection with a water pump; the utility model discloses a boiler dust remover with a graded filtering structure. According to the boiler dust remover with the graded filtering structure, flue gas can be filtered in a graded mode through a coarse filter screen, a fine filter screen and an activated carbon screen, dust in the flue gas can be treated more thoroughly, the flue gas purification effect is improved, meanwhile, a movable plate is used for driving an extrusion block to rotate, an attaching block can be extruded in a reciprocating mode, and the dust removal effect is improved. The coarse filter screen, the fine filter screen and the activated carbon screen reciprocate and vibrate, so that dust and impurities on the surfaces of the filter screens are automatically cleaned, and the filter effect is prevented from being influenced by blockage.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler dust removal, in particular to a boiler dust remover with a graded filtering structure. Background Art

[0002] Dust and flue gas are inevitably generated during the use of boilers. Boiler dust removal is to separate the dust in the boiler from the flue gas, thereby reducing dust pollution and facilitating further desulfurization and denitrification of the flue gas. Boiler dust collectors are usually used;

[0003] For example, a coal-fired boiler desulfurization and denitrification dust removal machine with a publication number of "CN209612608U" can discharge lime water into the connecting pipe through a three-way liquid inlet pipe, and sprinkle it into the interior of the shell through a spray head. The lime water reacts chemically with the normal sulfur flue gas, which can improve the desulfurization effect and increase the desulfurization efficiency of the device, bringing convenience to use. In addition, the lime water and reactants can be collected through a liquid collecting seal and flow to the interior of the liquid storage tank through a second liquid outlet pipe, so that the reactants generated by desulfurization can be recovered to reduce pollution.

[0004] Another example is a coal-fired boiler desulfurization, denitrification and dust removal machine with a publication number of "CN219291047U". First, the device is turned on by a switch, and the fan rotates to accelerate the flue gas in the air inlet pipe, so that it can quickly pass through the first solenoid valve into the tank body. When the first solenoid valve is opened by the flue gas induction, the electric control box receives the induction and opens the second solenoid valve. The reagent flows into the connecting pipe through the infusion tube and then sprays out from the nozzle of the throttle valve. When the connecting pipe sprays the reagent, the driving motor drives the connecting pipe to rotate, so that the sprayed reagent is evenly contacted with the flue gas in the key to react. After the reaction, the flue gas is discharged through the exhaust pipe, and the liquid enters the liquid collecting box from the liquid outlet pipe through the liquid collecting tank for storage, and then is discharged from the drain pipe. The entire desulfurization, denitrification and dust removal device has a simple structure and is easy to operate, which greatly improves the efficiency of desulfurization and denitrification.

[0005] When the above mechanism is in use, the dust in the flue gas is filtered through a filter plate, and the reagent is sprayed to the flue gas through a spray head, which can improve the desulfurization effect. However, since the dust in the flue gas is of different sizes, filtering the flue gas through only one filter plate will miss some smaller dust, resulting in poor dust removal effect on the flue gas. At the same time, after long-term use, the surface of the filter plate will be clogged with dust and impurities, affecting the filtering effect.

[0006] Therefore, we proposed a boiler dust collector with a graded filtering structure that can solve the above problems well. Utility Model Content

[0007] The utility model aims to provide a boiler dust collector with a graded filtering structure to solve the problem raised in the above-mentioned background technology that due to the different sizes of dust in the flue gas, some smaller dust will be missed when the flue gas is filtered by only one filter plate, resulting in poor dust removal effect on the flue gas, and at the same time, after long-term use, the surface of the filter plate will be clogged with dust and impurities, thereby affecting the filtering effect.

[0008] To achieve the above object, the utility model provides the following technical solution: a boiler dust collector with a graded filtering structure, comprising a shell, an air intake pipe is fixed at the lower part of the left side of the shell, an exhaust pipe is fixedly connected at the lower part of the right side of the shell, a slag discharge pipe is installed at the bottom of the exhaust pipe, a motor is bolted to the upper part of the exhaust pipe on the right side of the shell, and a water pump is bolted to the upper part of the left side of the shell;

[0009] A boiler dust collector with a graded filtering structure, further comprising:

[0010] A coarse filter, a fine filter and an activated carbon net are respectively arranged inside the shell, and return springs are installed between the sides of both ends of the coarse filter, the fine filter and the activated carbon net and the inner wall of the shell, the shell is rotatably connected with a rotating rod, the right end of the rotating rod passes through the inside of the shell, and the left end of the rotating rod passes through the inside of the coarse filter, the fine filter and the activated carbon net respectively, and the right end of the rotating rod is fixedly connected to the output end of the motor, the outer side of the rotating rod is sleeved and fixed with a movable plate, and the right side of the movable plate is symmetrically installed with an extrusion block, and the left side of the coarse filter, the fine filter and the activated carbon net are symmetrically fixed with a fitting block.

[0011] Preferably, the positions of the bonding block and the extrusion block correspond one to one, and the opposite surfaces of the bonding block and the extrusion block are in contact with each other.

[0012] Preferably, a movable cylinder is provided above the shell, and the right end of the movable cylinder passes through the interior of the shell, and a driven gear is fixedly mounted on the outer side of the right end of the movable cylinder, a transmission rod is connected and penetrated through the right side of the interior of the shell and located below the movable cylinder, and a broken gear is fixedly mounted on the right end of the transmission rod, and the rotating rod is connected to the outer side of the right end of the transmission rod through a pulley assembly.

[0013] Preferably, the movable cylinder is rotationally connected to the shell, the positions of the driven gear and the incomplete gear correspond to each other, and the driven gear and the incomplete gear are meshingly connected, and the transmission rod and the shell are rotationally connected.

[0014] Preferably, a spiral tube is installed at the lower left side of the shell, and both ends of the spiral tube pass through the inside of the shell. A hose is provided at the upper left side of the shell, and one end of the hose is fixedly connected to the movable cylinder.

[0015] Preferably, one end of the hose away from the movable cylinder is connected to a water pump, and one end of the spiral tube is connected to the water pump.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the boiler dust collector with a graded filtering structure can grade and filter the flue gas through the coarse filter, fine filter and activated carbon net, so that the dust in the flue gas is treated more thoroughly and the flue gas purification effect is improved. At the same time, the movable plate is used to drive the extrusion block to rotate, and the laminating block can be reciprocated to make the coarse filter, fine filter and activated carbon net move back and forth and vibrate, thereby automatically cleaning the dust and impurities on their surfaces to avoid being blocked and affecting the filtering effect. The specific contents are as follows:

[0017] (1) The coarse impurities in the flue gas can be filtered through the coarse filter, and the fine impurities in the flue gas can be filtered through the fine filter. Finally, the dust in the flue gas can be further filtered through the activated carbon net, thereby realizing graded filtration of the flue gas, making the dust in the flue gas more thoroughly treated and improving the flue gas purification effect;

[0018] (2) The motor drives the rotating rod to rotate, so that the movable plate rotates and drives the extrusion block to rotate, so that the bonding block moves, and cooperates with multiple reset springs, so that the coarse filter, fine filter and activated carbon net move back and forth and vibrate, which can shake off the impurities and dust on their surfaces, thereby preventing the coarse filter, fine filter and activated carbon net from being blocked by impurities and dust after long-term use, thereby affecting the filtering effect;

[0019] (3) The water in the movable tube is sprayed into the shell through multiple nozzles. At this time, the water contacts the impurities and dust that have been shaken off, so that the particles are captured by the inertial collision and chemical action of water droplets and particles, thereby achieving dust removal;

[0020] Furthermore, by utilizing the spiral tube, the residual heat in the flue gas can heat the liquid in the spiral tube, so that the flue gas can be purified more efficiently when being sprayed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the top-sectional structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the coarse filter screen and the movable plate of the utility model;

[0024] Figure 4 This is a side view structural diagram of the movable plate and the coarse filter screen of the utility model;

[0025] Figure 5This is a schematic diagram of the three-dimensional structure of the incomplete gear and the driven gear of the utility model;

[0026] Figure 6 This is a schematic diagram of the main structure of the utility model;

[0027] Figure 7 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0028] In the figure: 1. Shell; 2. Inlet pipe; 3. Exhaust pipe; 4. Slag discharge pipe; 5. Coarse filter; 6. Fine filter; 7. Activated carbon net; 8. Rotating rod; 9. Movable plate; 10. Fitting block; 11. Extrusion block; 12. Movable cylinder; 13. Spiral tube; 14. Hose; 15. Return spring; 16. Transmission rod; 17. Incomplete gear; 18. Driven gear; 19. Torsion spring. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 7 The utility model provides the following technical solutions: a boiler dust collector with a graded filtering structure

[0031] Embodiment 1: In order to solve the problem in the prior art that the dust in the flue gas varies in size, some smaller dust will be missed when filtering the flue gas by only one filter plate, resulting in poor dust removal effect on the flue gas, and the surface of the filter plate will be clogged by dust and impurities after long-term use, thus affecting the filtering effect, the following scheme is disclosed, and specific reference is made to Figure 1-Figure 4 and Figure 6 As shown, it includes a shell 1, an air intake pipe 2 is fixed at the lower part of the left side of the shell 1, an exhaust pipe 3 is fixedly connected at the lower part of the right side of the shell 1, and a slag discharge pipe 4 is installed at the bottom of the exhaust pipe 3, and a motor is bolted to the upper part of the exhaust pipe 3 on the right side of the shell 1, and a water pump is bolted to the upper part of the left side of the shell 1;

[0032] It also includes: a coarse filter 5, a fine filter 6 and an activated carbon net 7 are respectively arranged inside the shell 1, and a return spring 15 is installed between the sides of the two ends of the coarse filter 5, the fine filter 6 and the activated carbon net 7 and the inner wall of the shell 1, the coarse filter 5, the fine filter 6 and the activated carbon net 7 are all slidably arranged inside the shell 1, and the bottom of the shell 1 is arranged in a funnel shape, and a rotating rod 8 is rotatably connected inside the shell 1, the right end of the rotating rod 8 passes through the inside of the shell 1, and the left end of the rotating rod 8 passes through the inside of the coarse filter 5, the fine filter 6 and the activated carbon net 7 respectively, and the right end of the rotating rod 8 is fixedly connected to the output end of the motor, and a movable plate 9 is sleeved and fixed on the outer side of the rotating rod 8, and an extrusion block 11 is symmetrically installed on the right side of the movable plate 9, and a fitting block 10 is symmetrically fixed on the left side of the coarse filter 5, the fine filter 6 and the activated carbon net 7, and the fitting block 10 corresponds to the extrusion block 11 in position, and the fitting block 10 fits the opposite surface of the extrusion block 11;

[0033] When in use, the flue gas generated by the boiler enters the housing 1 from the air inlet pipe 2. At this time, the coarse dust in the flue gas is filtered through the coarse filter 5, and then the fine dust in the flue gas is filtered through the fine filter 6. Finally, the impurities in the flue gas are filtered through the activated carbon net 7, so that the dust removal effect of the flue gas can be improved by graded filtration. Then the filtered flue gas is discharged from the exhaust pipe 3, and then the motor is started, and the motor drives the rotating rod 8 to rotate, so that the movable plate 9 drives the extrusion block 11 to rotate, and can extrude the extrusion block 11. The extrusion block 11 drives the coarse filter 5, the fine filter 6 and the activated carbon net 7 to move respectively, and when the extrusion block 11 no longer extrudes the fitting block 10, the coarse filter 5, the fine filter 6 and the activated carbon net 7 are reset under the elastic force of the reset spring 15, and the above operation is repeated, so that the coarse filter 5, the fine filter 6 and the activated carbon net 7 move back and forth and vibrate, which can shake off the dust on their surfaces and discharge it from the slag discharge pipe 4, thereby avoiding the coarse filter 5, the fine filter 6 and the activated carbon net 7 from being blocked by impurities and dust after long-term use, thereby affecting the filtering effect.

[0034] Embodiment 2: Different from Embodiment 1, this embodiment uses the broken gear 17 to intermittently drive the driven gear 18 to rotate, so that the movable cylinder 12 swings back and forth, which can increase the spraying range of the nozzle. For details, refer to Figure 1 and Figure 5-Figure 7As shown, a movable cylinder 12 is arranged above the shell 1, and the right end of the movable cylinder 12 passes through the interior of the shell 1, and a driven gear 18 is sleeved and fixed on the outer side of the right end of the movable cylinder 12, a transmission rod 16 is penetrated and connected on the right side of the shell 1 below the movable cylinder 12, and a broken gear 17 is sleeved and fixed on the right end of the transmission rod 16, the rotating rod 8 and the outer side of the right end of the transmission rod 16 are connected by a pulley assembly, the movable cylinder 12 and the shell 1 are connected in rotation, the driven gear 18 and the broken gear 17 correspond in position, and the driven gear 18 and the broken gear 17 are meshed, and the transmission rod 16 and the shell 1 are connected in rotation;

[0035] The water in the movable cylinder 12 is sprayed into the shell 1 through multiple nozzles. At this time, the water contacts the impurities and dust that are shaken off, so that the inertial collision and chemical reaction of water droplets and particles are used to capture the particles to achieve dust removal. Then, when the motor drives the rotating rod 8 to rotate, the rotating rod 8 uses the pulley assembly to drive the transmission rod 16 to rotate synchronously, so that the broken gear 17 rotates and intermittently drives the driven gear 18 to rotate. At this time, the movable cylinder 12 rotates, and when the broken gear 17 does not mesh with the driven gear 18, the movable cylinder 12 reverses under the stored force of the torsion spring 19, and the above operation is repeated, so that the movable cylinder 12 swings back and forth, thereby increasing the spraying range of the nozzle.

[0036] Embodiment 3: Different from Embodiment 2, this embodiment utilizes the waste heat in the flue gas to heat the liquid in the spiral tube 13, thereby improving the effect of flue gas spraying. Figure 1 and Figure 6 As shown, a spiral tube 13 is installed at the lower left side of the shell 1, and both ends of the spiral tube 13 pass through the inside of the shell 1, a hose 14 is arranged above the left side of the shell 1, and one end of the hose 14 is fixedly connected to the movable cylinder 12, and the end of the hose 14 away from the movable cylinder 12 is connected to the water pump, and one end of the spiral tube 13 is connected to the water pump;

[0037] By setting the spiral tube 13, the waste heat in the flue gas can heat the liquid in the spiral tube 13, so that the flue gas can be purified more efficiently when spraying. Then the water pump is started to transport the liquid in the spiral tube 13 to the movable cylinder 12 through the hose 14.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A boiler dust collector with a graded filtering structure, comprising a housing (1), an air intake pipe (2) fixedly provided at the lower part of the left side of the housing (1), an exhaust pipe (3) fixedly provided at the lower part of the right side of the housing (1), a slag discharge pipe (4) installed at the bottom of the exhaust pipe (3), a motor boltedly provided at the upper part of the exhaust pipe (3) on the right side of the housing (1), and a water pump boltedly provided at the upper part of the left side of the housing (1); It is characterized in that Also includes: The shell (1) is provided with a coarse filter (5), a fine filter (6) and an activated carbon net (7) respectively, and a return spring (15) is installed between the side surfaces of both ends of the coarse filter (5), the fine filter (6) and the activated carbon net (7) and the inner wall of the shell (1). The shell (1) is rotatably connected with a rotating rod (8). The right end of the rotating rod (8) passes through the inside of the shell (1), and the left end of the rotating rod (8) passes through the inside of the coarse filter (5), the fine filter (6) and the activated carbon net (7), respectively, and the right end of the rotating rod (8) is fixedly connected to the output end of the motor. The outer side of the rotating rod (8) is sleeved and fixed with a movable plate (9), and the right side of the movable plate (9) is symmetrically installed with an extrusion block (11), and the left side of the coarse filter (5), the fine filter (6) and the activated carbon net (7) is symmetrically fixed with a fitting block (10).

2. The boiler dust collector with a graded filtering structure according to claim 1 is characterized in that: The positions of the laminating block (10) and the extrusion block (11) correspond one to one, and the opposite surfaces of the laminating block (10) and the extrusion block (11) are in lamination.

3. The boiler dust collector with a graded filtering structure according to claim 1 is characterized in that: The coarse filter (5), the fine filter (6) and the activated carbon net (7) are all slidably arranged inside the shell (1), and the bottom of the shell (1) is arranged in a funnel shape.

4. The boiler dust collector with a graded filtering structure according to claim 1 is characterized in that: A movable cylinder (12) is arranged above the housing (1), and the right end of the movable cylinder (12) passes through the interior of the housing (1), and a driven gear (18) is sleeved and fixed on the outer side of the right end of the movable cylinder (12); a transmission rod (16) is penetrated and connected below the movable cylinder (12) on the right side of the interior of the housing (1), and a broken gear (17) is sleeved and fixed on the right end of the transmission rod (16); the rotating rod (8) is connected to the outer side of the right end of the transmission rod (16) through a pulley assembly.

5. The boiler dust collector with a graded filtering structure according to claim 4 is characterized in that: The movable cylinder (12) and the housing (1) are rotationally connected, the positions of the driven gear (18) and the incomplete gear (17) correspond to each other, and the driven gear (18) and the incomplete gear (17) are meshingly connected, and the transmission rod (16) and the housing (1) are rotationally connected.

6. The boiler dust collector with a graded filtering structure according to claim 1 is characterized in that: A spiral tube (13) is installed at the lower left side of the shell (1), and both ends of the spiral tube (13) pass through the inside of the shell (1). A hose (14) is provided at the upper left side of the shell (1), and one end of the hose (14) is fixedly connected to the movable cylinder (12).

7. The boiler dust collector with a graded filtering structure according to claim 6 is characterized in that: One end of the hose (14) away from the movable cylinder (12) is connected to a water pump, and one end of the spiral tube (13) is connected to the water pump.

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