Electric precipitation ash hopper material level switch

Abstract

The utility model relates to an electric precipitation ash bucket material level switch, which comprises a conveying ash bucket, the side of the conveying ash bucket is fixedly connected with a positioning plate, the top side of the positioning plate is provided with a rectangular hole, the four inner side walls of the rectangular hole are respectively provided with an inner groove, the four inner grooves are respectively and internally connected with a hollow rod through a piston, and the hollow rods are arranged in the rectangular hole. The end, away from the inner groove, of the hollow rod is in an arc shape, and a solid rod is fixedly installed in the hollow rod. The utility model relates to the technical field of electric precipitation hopper level gauges. According to the electric precipitation ash bucket material level switch, when the electric precipitation ash bucket material level switch is used, the non-contact material level indicator does not need to be installed in a conveying ash bucket, contact with pulverized coal dust is reduced, in addition, positioning can be conducted and the non-contact material level indicator can be adjusted by rotating the threaded rod when the electric precipitation ash bucket material level switch is installed, and therefore the non-contact material level indicator can be rapidly positioned and the height can be adjusted; and the effects of facilitating quick disassembly and maintenance and improving the maintenance and disassembly efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of an electrostatic precipitator hopper level meter, in particular to an electrostatic precipitator hopper level switch. Background Art

[0002] In modern industrial production, electrostatic precipitator is a highly efficient dust removal equipment widely used in power, steel, cement and other industries. As an important part of electrostatic precipitator, the accuracy and reliability of electrostatic precipitator hopper level switch are directly related to the operation efficiency and production safety of the precipitator. Electrostatic precipitator generally moves the charged dust particles to the electrode with opposite charge under the action of electric field force and deposits on the electrode. Then the dust deposited on the electrode falls off by vibration and other methods and is collected in the hopper.

[0003] The existing plug-in switch generally needs to come into contact with the dust in the hopper during use, and needs to be in contact with the electrode sheet for a long time. At this time, there is a certain risk of causing the electrostatic precipitator to malfunction. At the same time, as the coal powder dust falls, it is easy for the hopper to be opened before the specified opening level is reached. Therefore, a non-contact level meter is needed. This level switch needs to be inspected inside the hopper during installation and maintenance, and the troublesome disassembly and assembly affects the efficiency of maintenance and installation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an electrostatic precipitator hopper level switch so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An electrostatic precipitator ash hopper level switch comprises an ash conveying hopper, a side of which is fixedly connected to a positioning plate, a top side of which is provided with a rectangular hole, four inner side walls of the rectangular hole are provided with inner grooves, four inner grooves are piston-connected with hollow rods, one end of the hollow rod away from the inner groove is arranged in an arc shape, a solid rod is fixedly installed in the hollow rod, a driving member is arranged in the positioning plate on the side of the inner groove, and a second fixing member is arranged in the positioning plate on a side close to the ash conveying hopper.

[0007] In a preferred example, the utility model can be further configured as follows: the driving member includes a rectangular frame groove, the rectangular frame groove is opened in the positioning plate and is located on the side of the inner groove, a positioning groove is opened on the side of the positioning plate, the positioning groove is connected to the rectangular frame groove, and a threaded rod is threadedly connected to the inner thread of the positioning groove.

[0008] In a preferred example, the utility model can be further configured as follows: the second fixing member includes a plurality of bellows, the top ends of the plurality of bellows are distributed in a circular array and fixedly installed on the bottom of the positioning plate and located on the side of the rectangular hole, and the bottom ends of the plurality of bellows are connected to a supporting plate.

[0009] In a preferred example, the utility model can be further configured as follows: an adjustment hole is opened on the side of the positioning plate near one end of the conveying ash hopper, a connecting groove is opened between the adjustment hole and the positioning groove, and both ends of the connecting groove are respectively connected to the adjustment hole and the positioning groove.

[0010] In a preferred example, the utility model can be further configured as follows: a cavity tube is rotatably installed in the adjustment hole, one end of the cavity tube close to the outside of the adjustment hole is a closed end, and a delivery hole is opened on the outer wall of the cavity tube, and the delivery hole is connected to the connecting groove.

[0011] In a preferred example, the utility model can be further configured as follows: an arc tube is connected between the tops of the outer peripheral walls of two adjacent bellows, wherein the outer peripheral wall of the arc tube close to the adjusting hole is connected to a transmission tube, and the end of the transmission tube is connected to the adjusting hole.

[0012] In summary, the utility model includes at least one of the following beneficial technical effects:

[0013] 1. This kind of electrostatic precipitator hopper level switch, when in use, the non-contact level meter does not need to be installed in the conveying hopper, reducing the contact with coal dust. In addition, during installation, the non-contact level meter can be positioned and adjusted by rotating the threaded rod, so that the non-contact level meter can be quickly positioned and adjusted in height, so as to facilitate quick disassembly and maintenance, and improve the efficiency of maintenance and disassembly;

[0014] 2. This kind of electrostatic precipitator hopper level switch, the rectangular frame groove is mainly used to connect the inner grooves, so that multiple inner grooves can be connected to each other through the set rectangular frame grooves, and hydraulic oil is injected from the positioning groove, and then the threaded rod is inserted into the positioning groove. When the threaded rod rotates into the positioning groove, it will push the hydraulic oil into the frame groove and then push the solid rod and the hollow rod to move, thereby achieving the effect of clamping the non-contact material level meter;

[0015] 3. In this type of electrostatic precipitator hopper level switch, when the threaded rod rotates and moves into the positioning groove, the hydraulic oil will be transported to the rectangular frame groove and the connecting groove at the same time, and the hydraulic oil in the connecting groove will enter the cavity tube through the delivery hole on the cavity tube, and then the hydraulic oil will enter the adjustment hole, and then enter the arc tube, and then enter the bellows through the arc tube. The bellows will be extended by hydraulic pressure, thereby pushing the bearing plate to move downward, achieving the effect of adjusting the bearing plate, and thus facilitating the effect of fixing non-contact level meters at various heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The utility model is a schematic diagram of the overall structure of an electrostatic precipitator hopper level switch.

[0018] Figure 2 The utility model is a schematic diagram of the dissected structure of a positioning plate of an electrostatic precipitator hopper level switch.

[0019] Figure 3 For the utility model Figure 2 Schematic diagram of the structure on the left.

[0020] In the figure, 1, ash conveying hopper; 2, positioning plate; 3, rectangular hole; 4, inner groove; 5, hollow rod; 6, solid rod; 7, driving member; 8, second fixing member; 9, rectangular frame groove; 10, positioning groove; 11, threaded rod; 13, bellows; 14, bearing plate; 15, adjustment hole; 16, connecting groove; 17, cavity tube; 18, conveying hole; 19, arc tube; 20, transmission tube. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] Reference Figure 1-Figure 3 The utility model discloses an electrostatic precipitator hopper level switch, comprising an ash conveying hopper 1, a positioning plate 2 is fixedly connected to the side of the ash conveying hopper 1, a rectangular hole 3 is opened on the top side of the positioning plate 2, four inner side walls of the rectangular hole 3 are opened with inner grooves 4, four inner grooves 4 are piston-connected with hollow rods 5, one end of the hollow rod 5 away from the inner groove 4 is arc-shaped, a solid rod 6 is fixedly installed in the hollow rod 5, a driving member 7 is arranged on the side of the inner groove 4 in the positioning plate 2, and a second fixing member 8 is arranged on the side of the positioning plate 2 close to the ash conveying hopper 1.

[0024] In this embodiment, when in use, the driving member 7 drives each hollow rod 5 and the solid rod 6 to retract into the inner groove 4, and then the non-contact material level meter is placed in the rectangular groove, and the bottom of the non-contact material level meter is supported by the second fixing member 8, and then the solid rod 6 and the hollow rod 5 are driven by the driving member 7 to clamp, so that the outer wall of the non-contact material level meter is fixed, wherein the hollow rod 5 is made of rubber or silicone, and the solid rod 6 is made of iron or stainless steel, so that the hollow rod 5 can be squeezed and deformed when it contacts the non-contact material level meter, increasing the contact area between the non-contact material level meter, thereby increasing the friction between the hollow rod 5 and the non-contact material level meter, and thus improving the stability of the fixation; in addition, if the height of the non-contact material level meter is high, before fixing the non-contact material level meter, the driving member 7 cooperates with the second fixing member 8 at this time, so that the second fixing member 8 is expanded, and the expanded second fixing member 8 enables the non-contact material level meter to be inserted into a deeper position in the rectangular hole 3, thereby further improving the stability of the non-contact material level meter after installation.

[0025] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the driving member 7 includes a rectangular frame groove 9, which is opened in the positioning plate 2 and located on the side of the inner groove 4. A positioning groove 10 is opened on the side of the positioning plate 2, and the positioning groove 10 is connected to the rectangular frame groove 9. A threaded rod 11 is connected to the inner thread of the positioning groove 10.

[0026] In this embodiment, the rectangular frame groove 9 is mainly used to connect the inner grooves 4, so that multiple inner grooves 4 can be connected to each other through the set rectangular frame groove 9. In addition, hydraulic oil is injected from the positioning groove 10, and then the threaded rod 11 is inserted into the positioning groove 10. When the threaded rod 11 rotates into the positioning groove 10, it will push the hydraulic oil into the frame groove and then push the solid rod 6 and the hollow rod 5 to move, thereby achieving the effect of clamping the non-contact material level meter.

[0027] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the second fixing member 8 includes a plurality of bellows 13 , the top ends of the plurality of bellows 13 are distributed in a circular array and fixedly installed on the bottom of the positioning plate 2 and located on the side of the rectangular hole 3 , and the bottom ends of the plurality of bellows 13 are connected to a supporting plate 14 .

[0028] In this embodiment, the provided bellows 13 can be used for telescopic effect, the provided positioning plate 2 is used to support the non-contact material level meter from the bottom of the rectangular hole 3, and the top side of the provided bearing plate 14 can be provided with a number of anti-slip grooves to prevent the bottom from slipping and improve stability after the non-contact material level meter is installed.

[0029] In a further preferred embodiment of the present invention, Figure 1-3 As shown, an adjustment hole 15 is opened on one end of the side of the positioning plate 2 close to the conveying ash hopper 1, and a connecting groove 16 is opened between the adjusting hole 15 and the positioning groove 10, and both ends of the connecting groove 16 are connected to the adjusting hole 15 and the positioning groove 10 respectively.

[0030] In this embodiment, the adjustment hole 15 is connected to the connecting groove 16, and the connecting groove 16 is connected to the positioning groove 10. During the process of conveying hydraulic oil, the hydraulic oil will enter the adjustment hole 15, thereby providing a fixed power for the second fixing member 8 to facilitate the adjustment of the height of the supporting plate 14.

[0031] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a cavity tube 17 is rotatably installed in the adjustment hole 15, and the end of the cavity tube 17 close to the outside of the adjustment hole 15 is a closed end. A delivery hole 18 is opened on the outer peripheral wall of the cavity tube 17, and the delivery hole 18 is connected to the connecting groove 16. An arc tube 19 is connected between the tops of the outer peripheral walls of two adjacent bellows 13, wherein the outer peripheral wall of the arc tube 19 close to the adjustment hole 15 is connected with a transmission tube 20, and the end of the transmission tube 20 is connected to the adjustment hole 15.

[0032] In this embodiment, when the threaded rod 11 rotates and moves into the positioning groove 10, the hydraulic oil will be simultaneously transported to the rectangular frame groove 9 and the connecting groove 16. The hydraulic oil in the connecting groove 16 will enter the cavity tube 17 through the delivery hole 18 on the cavity tube 17. Then the hydraulic oil enters the adjustment hole 15, and then enters the arc tube 19, and then enters the bellows 13 through the arc tube 19. The bellows 13 will be extended by hydraulic pressure, thereby pushing the supporting plate 14 to move downward, thereby achieving the effect of adjusting the supporting plate 14, and thus facilitating the fixing of non-contact level meters of various heights.

[0033] In this embodiment, it is important to note that, at the time of initial use, if the support plate 14 reaches the appropriate height ahead of time during the positioning process, the cavity 17 is rotated to disengage the conveying hole 18 from the connecting groove 16, and the connecting groove 16 is sealed by the outer peripheral wall of the cavity 17, so as to facilitate rapid positioning of the support plate 14 at an appropriate height. Generally, a non-contact level meter is monitored by ultrasonic waves or by monitoring the natural radiation of dust. The signal transceiver module on the non-contact level meter can transmit the real-time situation in the conveying ash hopper 1 to the terminal through DCS for real-time monitoring.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrostatic precipitator ash hopper level switch, comprising an ash conveying hopper (1), characterized in that: A positioning plate (2) is fixedly connected to the side of the conveying ash hopper (1), a rectangular hole (3) is opened on the top side of the positioning plate (2), four inner side walls of the rectangular hole (3) are opened with inner grooves (4), and hollow rods (5) are piston-connected in the four inner grooves (4), and the ends of the hollow rods (5) away from the inner grooves (4) are arranged in an arc shape, and a solid rod (6) is fixedly installed in the hollow rods (5), a driving member (7) is arranged in the positioning plate (2) on the side of the inner groove (4), and a second fixing member (8) is arranged in the positioning plate (2) on the side close to the conveying ash hopper (1).

2. The electrostatic precipitator hopper level switch according to claim 1, characterized in that: The driving member (7) comprises a rectangular frame groove (9), wherein the rectangular frame groove (9) is arranged in the positioning plate (2) and is located on the side of the inner groove (4), and a positioning groove (10) is arranged on the side of the positioning plate (2), wherein the positioning groove (10) is connected to the rectangular frame groove (9), and a threaded rod (11) is connected to the inner thread of the positioning groove (10).

3. The electrostatic precipitator hopper level switch according to claim 2, characterized in that: The second fixing member (8) comprises a plurality of bellows (13), the top ends of the plurality of bellows (13) being distributed in a circular array and fixedly mounted on the bottom of the positioning plate (2) and located on the side of the rectangular hole (3), and the bottom ends of the plurality of bellows (13) being connected to a bearing plate (14).

4. The electrostatic precipitator hopper level switch according to claim 3, characterized in that: An adjustment hole (15) is provided on one end of the side of the positioning plate (2) close to the ash conveying hopper (1), a connecting groove (16) is provided between the adjustment hole (15) and the positioning groove (10), and two ends of the connecting groove (16) are respectively connected to the adjustment hole (15) and the positioning groove (10).

5. The electrostatic precipitator hopper level switch according to claim 4, characterized in that: A cavity tube (17) is rotatably mounted in the regulating hole (15); one end of the cavity tube (17) close to the outside of the regulating hole (15) is a closed end; a delivery hole (18) is provided on the outer peripheral wall of the cavity tube (17); and the delivery hole (18) is communicated with the communicating groove (16).

6. The electrostatic precipitator hopper level switch according to claim 5, characterized in that: An arc tube (19) is connected between the tops of the outer peripheral walls of two adjacent bellows (13), wherein the outer peripheral wall of the arc tube (19) close to the adjustment hole (15) is connected to a transmission tube (20), and the end of the transmission tube (20) is connected to the adjustment hole (15).

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