A comprehensive and efficient cleaning electrostatic precipitator

Abstract

The application relates to the technical field of dust collectors, and particularly discloses a comprehensive and efficient cleaning electrostatic dust collector which comprises a dust removal box body and a dust collecting hopper which are arranged in communication with each other, a plurality of anode plates are arranged in the dust removal box body, an electrode rod is arranged between two adjacent anode plates, an anode plate cleaning mechanism which moves up and down is arranged in the dust removal box body, the anode plate cleaning mechanism comprises a lifting frame and a lifting driving assembly, a hollow strip plate which is located directly below the gap between the two adjacent anode plates is arranged in the lifting frame, a row of impact strips are arranged in the hollow strip plate, a turntable protection shell which is used for extending into the other end of the anode plate is arranged on the hollow strip plate, a turntable is arranged in the turntable protection shell, and a guide groove which is used for being matched with the end guiding column of the impact strip is arranged on the turntable. The electrostatic dust collector disclosed by the application can cover the whole anode plate through the impact and vibration, the dust attached to the surface of the whole anode plate can be shaken off, and the dust removal effect of the electrostatic dust collector during long-term use is effectively ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dust removal, and discloses a comprehensive and efficient cleaning electrostatic precipitator. BACKGROUND

[0002] As a kind of gas dust removal equipment, electrostatic precipitator has been widely used in tail gas treatment in industrial production.The structure of existing electrostatic precipitator includes dust removal tank and dust collecting hopper, and multiple groups of anode plates and cathode rods are arranged in the dust removal tank.In the operation process of electrostatic precipitator, dust gas flows through the flow channel between adjacent two anode plates, and is charged negatively by the discharge effect of cathode rod, and then is electrostatically adsorbed on the surface of anode plate, so that the dust originally adhered to the surface of anode plate needs to be knocked off into dust collecting hopper by knocking mechanism after electrostatic precipitator operates for a period of time.

[0003] For example, the patent application No.2017113743294 discloses an electrostatic dust removal device including a casing, an air inlet and an air outlet are arranged at two ends of the casing respectively, and a W-shaped dust collecting groove is arranged at the lower end of the casing; a power supply device is arranged at the top end of the casing to provide high-voltage direct current power supply for sheet-shaped discharge electrode; a corona generating device is arranged in the air cavity of the casing and is composed of sheet-shaped discharge electrode and grounding electrode plate; and a knocking device is arranged close to the corona generating device to shake off fly ash particles adhered to the grounding electrode plate by periodic vibration.The electrostatic dust removal device disclosed in the patent application can remove dust by the knocking device after operating for a period of time, but the existing knocking device is fixedly arranged beside the anode plate, and only the fixed area of the anode plate can be knocked during the operation process, and then the energy is transmitted to the entire anode plate.When the fixed knocking method is used for anode plate with large area, only the part of anode plate close to the knocking area can shake off the dust adhered to the surface, and the anode plate far away from the knocking device can not be shaken off due to small vibration effect, and some high-viscosity dust impurities have large adhesion force with the anode plate, so that the conventional knocking device cannot effectively remove the dust on the surface of anode plate.Based on this, the present application provides a comprehensive and efficient cleaning electrostatic precipitator to solve the problem that the existing electrostatic dust removal device cannot effectively remove the dust adhered to the surface of anode plate by local knocking. SUMMARY

[0004] The present application aims to provide a comprehensive and efficient cleaning electrostatic precipitator to solve the problem that the existing electrostatic dust removal device cannot effectively remove the dust adhered to the surface of anode plate by local knocking.

[0005] The present application is realized by the following technical scheme:

[0006] The utility model provides a kind of comprehensive high-efficiency cleaning electrostatic precipitator, including dust removal box and dust collecting hopper being arranged in communication, the both ends of the dust removal box are respectively provided with air inlet part and air outlet part, a plurality of parallelly arranged anode plates are provided in the dust removal box, electrode stick is provided in the gap between two adjacent anode plates, dust removal box is provided with the anode plate cleaning mechanism that moves up and down, the anode plate cleaning mechanism includes lifting frame and lifting drive component, hollow strip is arranged in the lifting frame and is located below the gap of adjacent two anode plates, a row of impact strips is arranged in the hollow strip, and spring is arranged between impact strip and hollow strip inner chamber, one end of impact strip extends from hollow strip and acts on anode plate, rotating disc protective shell for extending into the other end of anode plate is arranged on the hollow strip, rotating disc is arranged in the rotating disc protective shell, and guide groove is opened in rotating disc and is used for the end of impact strip guide column, all the rotating discs are jointly connected with rotating shaft, and the end of rotating shaft is connected with gear through one-way clutch, the inner wall of dust removal box is fixed with rack for the gear.

[0007] As a further arrangement of the above scheme, the guide groove is composed of circular arc segments and straight line segments connected with gradually expanding diameters, the straight line segments are arranged along the radial direction of the rotating disc and are connected with both ends of the circular arc segments respectively.

[0008] As a further arrangement of the above scheme, the lifting frame includes horizontal strip plates arranged on the front and back sides of a row of anode plates, a plurality of vertical strip plates are connected between the two horizontal strip plates, and the hollow strip plate is arranged on the upper surface of the vertical strip plate.

[0009] As a further arrangement of the above scheme, the lifting drive component includes a vertical guide rod and a vertical lead screw arranged in the dust removal box, and the end of the vertical lead screw is connected with a lead screw motor, the horizontal strip plate is provided with a guide hole for the vertical guide rod and a lead screw nut for the vertical lead screw.

[0010] As a further arrangement of the above scheme, a gas blowing pipe is arranged below the gap between adjacent two anode plates, a row of gas nozzles are arranged on the gas blowing pipe and face the corresponding vertical strip plate, and the end of the gas blowing pipe extending out of the dust removal box is connected with a compressed air source.

[0011] As a further arrangement of the above scheme, a plurality of strip-shaped openings are arranged on the two side surfaces of the dust removal box, the strip-shaped openings are arranged in alignment with the gaps between the corresponding adjacent two anode plates, and the air inlet part and the air outlet part are arranged on the two side surfaces of the dust removal box and cover the strip-shaped openings.

[0012] As a further arrangement of the above scheme, a screw conveyor is connected to the lower end of the dust collecting hopper, and a discharge port is arranged on the lower surface of the end of the screw conveyor.

[0013] As a further feature of the above scheme, several vibrators are provided on the outer wall of the dust collection hopper.

[0014] The electrostatic precipitator disclosed in this invention performs a comprehensive vibration cleaning operation on the anode plate after each period of operation. The specific process is to first cut off the current flowing into the anode plate and electrode rod, and then start the lead screw motor in the lifting drive assembly. Under the power input of the lead screw motor, the entire lifting frame moves upward from the bottom.

[0015] As the lifting frame moves upward, the gear at the end of each shaft meshes with the corresponding rack, causing the shaft to rotate. Driven by this rotation, the same set of turntables rotates within their respective protective housings. During this rotation, the guide grooves and guide posts cause a row of impact bars to move away from the anode plate. During this movement, the springs are stretched or compressed, accumulating potential energy. This energy is then released instantaneously, causing the impact bars to move rapidly towards the anode plate and impact its surface, causing vibration and effectively shaking off dust from the anode plate at that horizontal position. As the lifting frame moves upward from the bottom, it impacts and vibrates the anode plate multiple times at different horizontal positions, ensuring that all dust adhering to the entire surface of the anode plate is removed.

[0016] After the dust on the surface of the anode plate is cleaned, the control screw motor flips to make the lifting frame move downward. During its downward movement, the shaft will not rotate due to the engagement of the one-way clutch until it reaches the bottom in a non-vibrating state and completes the reset.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The electrostatic precipitator disclosed in this invention employs a specially designed anode plate cleaning mechanism. During its upward movement, the mechanism uses a transmission action to cause a row of impact bars to intermittently impact the surface of the anode plate. This results in the entire anode plate being subjected to multiple impacts from bottom to top, ensuring that the impact and vibration effect covers the entire anode plate. Consequently, all dust adhering to the surface of the anode plate is vibrated off, effectively guaranteeing the dust removal effect of the electrostatic precipitator during long-term use.

[0019] This invention further optimizes the dust removal process of the anode plate cleaning mechanism by installing an air blow pipe at the bottom of the dust collector. After the anode plate cleaning mechanism completes one dust removal and reset, high-pressure gas can be introduced into the air blow pipe, allowing the high-pressure gas to be discharged from the nozzle and act on the anode plate cleaning mechanism, blowing off all the dust on the surface of the anode plate cleaning mechanism. This ensures the high cleanliness of the entire dust collector and enables the entire electrostatic precipitator to operate stably for a long time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the dust removal box in this invention;

[0023] Figure 3 This is a schematic diagram of the internal planar structure of the dust collector box in this invention;

[0024] Figure 4 This is a three-dimensional structural diagram of the anode plate, electrode rod, lifting frame, etc. in this invention;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the lifting frame, rotating shaft, gears, etc. in this invention;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the impact bar, hollow strip plate, etc. in this invention;

[0027] Figure 7 This is a schematic diagram of the internal planar structure of the turntable protective shell in this invention;

[0028] Figure 8 For the present invention Figure 6 A magnified structural diagram of point A in the middle. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-8 This application will be described in detail with reference to the embodiments. Example 1

[0031] Example 1 discloses a comprehensive and efficient electrostatic precipitator for cleaning, see attached figure. Figure 1The main body of the electrostatic precipitator includes a frame 1, a dust collection box 2, a dust collection hopper 3, and a control box 4. The frame 1 consists of several legs 101 and an upper plate 102, and the control box 4 is located on the side of the legs 101. A rectangular opening for mounting the dust collection box 2 is provided on the upper plate 102, and the dust collection box 2 is fixedly installed in the rectangular opening. Then, the dust collection hopper 3 is connected to the lower end of the dust collection box 2.

[0032] Reference Appendix Figure 2 and attached Figure 3 Multiple parallel strip-shaped openings 200 are provided on both the left and right sides of the dust collector 2. An air inlet 201 and an air outlet 202, encompassing the strip-shaped openings 200, are respectively provided on the left and right sides of the dust collector 2. Multiple anode plates 5 are arranged at equal intervals within the dust collector 2, with the gap between adjacent anode plates 5 aligned with the strip-shaped openings 200, allowing dust-laden gas introduced through the strip-shaped openings 200 to flow along the gap between the two anode plates 5. Simultaneously, multiple electrode rods 6 are spaced apart in the gap between two adjacent anode plates 5. The discharge operation of the electrode rods 6 causes the dust to acquire a negative charge, thus enabling the dust to adhere to the surface of the anode plates 5 through electrostatic adsorption, thereby completing the dust removal process.

[0033] The key design feature of this embodiment 1 is the design of the anode plate cleaning mechanism, see attached... Figure 3 Appendix Figure 4 and attached Figure 5 It includes a lifting frame 701 and a lifting drive assembly 702 disposed inside the dust collector housing 2. The lifting drive assembly 702 acts on the lifting frame 701 to enable it to move up and down. Specifically, the lifting frame 701 includes horizontal strips 703 disposed on the front and rear sides of a row of anode plates 5. Several vertical strips 704 are connected between two horizontal strips 703, and each vertical strip 704 is vertically aligned with the gap between two adjacent anode plates 5, and is disposed close to the anode plates 5 on the same side.

[0034] Reference Appendix Figure 6 Appendix Figure 7 and attached Figure 8A hollow strip plate 705 is fixedly installed on the upper surface of the longitudinal strip plate 704, and multiple turntable protective shells 706 are equally spaced on the side of the hollow strip plate 705 away from the anode plate 5. A turntable 707 is installed in each turntable protective shell 706, and a rotating shaft 708 is concentrically connected to all the turntables 707, passing through the turntable protective shell 706, so that all the turntables 707 can be driven to rotate synchronously under the action of the rotating shaft 708. A guide groove 709 is opened on the end face of the turntable 707. The guide groove 709 is composed of an arc segment 7091 with a gradually increasing diameter and a straight segment 7092 connected together. The straight segment 7092 is arranged radially along the turntable and is connected to both ends of the arc segment 7091.

[0035] Multiple impact strips 710 are provided through the hollow strip plate 705, with one end of each impact strip 710 extending into the corresponding turntable protective shell 706 and the other end extending out of the hollow strip plate 705 towards the anode plate 5. A guide post 711, which interacts with the guide groove 709, is connected to the end of the impact strip 710 extending into the turntable protective shell 706. A spring 712 is also connected between the impact strip 710 and the inner wall of the hollow strip plate 705. During the rotation of the turntable 707, the impact strip 710 is pulled towards one side of the turntable protective shell 706 by the interaction between the guide groove 709 and the guide post 711. This stretches or compresses the spring 712, storing potential energy until the guide post 711 interacts with the straight section 7092, at which point the spring potential energy is released instantaneously, causing the impact strip 710 to strike the anode plate 5. The force generated by the impact causes the anode plate 5 to vibrate.

[0036] Each shaft 708 has a gear 714 connected to one or both ends by a one-way clutch 713. Then, a rack 715 that interacts with the gear 714 is fixedly installed on the inner wall of the dust collector 2 between two adjacent strip openings 200, and the rack 715 is fixed in the vertical direction.

[0037] Reference Appendix Figure 3 and attached Figure 5The lifting drive assembly 702 includes a vertical guide rod 716 and a vertical lead screw 717 located at the corner of the top wall of the dust collector 2. A guide hole for the vertical guide rod 716 and a lead screw nut 718 for the vertical lead screw 717 are provided on the crossbar 703 of the lifting frame 701. A lead screw motor 719 for driving the vertical lead screw 717 is also provided at the top of the dust collector 2, allowing the lifting frame 701 to move stably up and down under the drive of the lead screw motor 719. During its upward movement, the rotating shaft 708 rotates through the meshing transmission between the gear 714 and the rack 715. Under the operation of the rotating shaft 708, the impact bar 710 impacts the anode plate 5 once every time it moves upward a certain distance, effectively shaking off all the dust adhering to its surface. Conversely, during the downward movement of the lifting frame 701, the rotating shaft 708 will not rotate due to the action of the one-way clutch 713 until the lifting frame 701 reaches its lowest point and resets. Example 2

[0038] Example 2 discloses an electrostatic precipitator that is further improved based on the technical solution in Example 1. It mainly addresses the issue that dust falling from the anode plate 5 will fall onto the longitudinal strip 704 in the lifting frame 701 and cannot be effectively cleaned. The similarities with Example 1 will not be described again.

[0039] In this embodiment 2, an air blowing pipe 8 is provided directly below the gap between each pair of adjacent anode plates 5, and a row of air nozzles 801 facing the corresponding longitudinal strip 704 are provided on the side of the air blowing pipe 8. Then, a solenoid valve is provided at the outer end of each air blowing pipe 8 extending out of the dust removal box 2, and the outer ends of all air blowing pipes 8 are connected to a compressed air source (not shown in the figure) through a main air pipe. When the anode plate cleaning mechanism 7 moves up and down once to reset, the solenoid valve is opened, so that high-pressure gas is sprayed out from the air nozzles 801 and acts on the longitudinal strip 704, so that the dust falling on the longitudinal strip 704 is automatically blown off under the action of the high-pressure airflow.

[0040] In addition, to ensure that the dust falling into the dust collection hopper 3 can be discharged smoothly and at a fixed point, several vibrators 301 are installed on the outer wall of the dust collection hopper 3. Then, a horizontally arranged auger conveyor 302 is connected to the lower end of the dust collection hopper 3, and a discharge port 303 is provided on the lower surface of one end of the auger conveyor 302. When a large amount of dust accumulates in the dust collection hopper 3, the auger conveyor 302 can be actively started to transport the dust in a direction and then discharge the entire electrostatic precipitator from the discharge port 303. At the same time, the vibrators 301 can also be started to vibrate the bottom wall of the dust collection hopper 3 to accelerate the downward movement of dust in the dust collection hopper 3 and prevent accumulation in the dust collection hopper 3.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A comprehensive and efficient cleaning electrostatic precipitator, comprising a dust removal box and a dust collecting hopper connected in series, the dust removal box is provided with an air inlet and an air outlet at both ends, respectively, a plurality of anode plates are arranged side by side in the dust removal box, and an electrode rod is arranged in the gap between two adjacent anode plates, characterized in that, The dust removal box is provided with an anode plate cleaning mechanism moving up and down, the anode plate cleaning mechanism comprises a lifting frame and a lifting drive assembly, a hollow strip plate is arranged in the lifting frame and located directly below the gap between two adjacent anode plates, a row of impact strips is arranged in the hollow strip plate, springs are arranged between the impact strips and the inner cavity of the hollow strip plate, one end of the impact strip extends out of the hollow strip plate and acts on the anode plate, a turntable protection shell for extending into the other end of the anode plate is arranged on the hollow strip plate, a turntable is arranged in the turntable protection shell, a guide groove is formed in the turntable and acts on the end guiding column of the impact strip, all the turntables are jointly connected with a rotating shaft, and the end of the rotating shaft is connected with a gear through a one-way clutch, and a rack is fixed on the inner wall of the dust removal box and acts on the gear.

2. The electrostatic precipitator for total and efficient cleaning according to claim 1, wherein The guide groove is composed of circular arc segments and straight line segments, the straight line segments are arranged along the radial direction of the turntable and are connected with both ends of the circular arc segments respectively.

3. The electrostatic precipitator for total and efficient cleaning according to claim 1, wherein The lifting frame comprises horizontal strip plates arranged on the front and back sides of the row of anode plates, a plurality of vertical strip plates are connected between the two horizontal strip plates, and the hollow strip plate is arranged on the upper surface of the vertical strip plate.

4. The electrostatic precipitator for total and efficient cleaning according to claim 3, wherein The lifting drive assembly comprises a vertical guide rod and a vertical lead screw arranged in the dust removal box, and the end of the vertical lead screw is connected with a lead screw motor, the horizontal strip plate is provided with a guide hole acting on the vertical guide rod and a lead screw nut acting on the vertical lead screw.

5. The electrostatic precipitator for total efficient cleaning according to claim 3, wherein A gas blowing pipe is arranged directly below the gap between two adjacent anode plates, a row of air nozzles are arranged on the gas blowing pipe and face the corresponding vertical strip plate, and the end of the gas blowing pipe extending out of the dust removal box is connected with a compressed air source.

6. The electrostatic precipitator for total and efficient cleaning according to claim 1, wherein A plurality of strip-shaped openings are arranged on the two side surfaces of the dust removal box, the strip-shaped openings are arranged in alignment with the gaps between the corresponding two adjacent anode plates, and the air inlet part and the air outlet part are arranged on the two side surfaces of the dust removal box and cover the strip-shaped openings.

7. The electrostatic precipitator of claim 1, wherein, The lower end of the dust collection hopper is connected with an auger conveyor, and the lower surface of the end of the auger conveyor is provided with a discharge port.

8. The electrostatic precipitator for total efficient cleaning according to claim 7, wherein A plurality of vibrators are arranged on the outer wall of the dust collection hopper.

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