Purging device for material level switch of dust remover

Abstract

The utility model relates to a dust remover material level switch purging device which comprises an arc-shaped baffle, an air supply pipe and a valve body, and the arc-shaped baffle is used for being installed in a dust remover ash hopper, located on the upper side of a material level switch probe rod and arranged opposite to the material level switch probe rod. The arc-shaped baffle is provided with an inner cavity, an air inlet used for communicating the inner cavity with the external environment and a plurality of air outlets, and the air outlets are located in the side, used for facing a material level switch feeler lever, of the arc-shaped baffle. One end of the air supply pipe is connected with the air inlet, and the other end of the air supply pipe is used for compressed air to enter; and the valve body is arranged on the air supply pipe. The material level switch feeler lever is shielded through the arc-shaped baffle, high-altitude impact of dust blocks falling from the upper portion on the material level switch feeler lever is avoided, compressed air is blown to the upper side of the material level switch feeler lever through the multiple air outlets, false alarm of the material level switch is avoided, and maintenance personnel do not need to disassemble, check and remove dust. On one hand, the material level switch feeler lever is protected, and on the other hand, workload of maintenance personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, in particular to a dust collector material level switch purge device. Background Art

[0002] The RF admittance level switch is an instrument that monitors the material level in the dust collector hopper. Its operating principle is that when dust in the dust collector hopper covers the RF admittance level switch probe, the switch issues an alarm signal, notifying monitoring personnel that the hopper material level has reached the alarm value. Current RF admittance level switches can experience dust accumulation, dust adhesion, and the fall of dust clumps during use. These conditions can cause false alarms or even damage the switch, requiring maintenance personnel to disassemble the switch for inspection and perform manual cleaning, increasing their workload. Utility Model Content

[0003] Based on the above description, the utility model provides a dust collector material level switch purging device to solve the problem that the existing radio frequency admittance material level switch lacks protection and is prone to false alarms, requiring maintenance personnel to disassemble and inspect and clean the dust.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A dust collector material level switch purge device, comprising:

[0006] An arc-shaped baffle is installed in the dust collector hopper and is located on the upper side of the material level switch probe and is arranged opposite to the material level switch probe. The arc-shaped baffle has an inner cavity, an air inlet for connecting the inner cavity with the external environment, and multiple air outlets. The multiple air outlets are located on the side of the arc-shaped baffle facing the material level switch probe;

[0007] an air supply pipe, one end of which is connected to the inner cavity and the other end of which is used for allowing compressed gas to enter; and

[0008] The valve body is arranged on the air supply pipe.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows:

[0010] Furthermore, the arc-shaped baffle is formed with a receiving groove, the receiving groove is used to accommodate the material level switch probe rod, and the notch of the receiving groove is used to protrude from the material level switch probe rod;

[0011] The plurality of air outlets are all arranged on the groove wall of the containing groove.

[0012] Furthermore, the notch of the accommodating groove is arranged downward.

[0013] Furthermore, the arc-shaped opening of the arc-shaped baffle is arranged upward;

[0014] The plurality of air outlets are located on the lower side of the arc-shaped baffle.

[0015] Furthermore, the valve body is configured as a solenoid valve;

[0016] The dust collector material level switch purging device further includes a circuit board assembly, which is used to be electrically connected to the solenoid valve and the material level switch.

[0017] Furthermore, one end of the arc-shaped baffle along its length direction is a mounting end surface, the mounting end surface is adapted to fit with the side wall of the dust collector hopper, and the mounting end surface is connected to a mounting block, the mounting block is used to be installed in the mounting hole of the dust collector hopper and has a cavity communicated with the air inlet;

[0018] The air supply pipe is communicated with the cavity.

[0019] Furthermore, the plurality of air outlets are arranged in a matrix.

[0020] Furthermore, the dust collector level switch purging device also includes a heater and a filter, and the heater and the filter are both arranged between the end of the air supply pipe for compressed gas to enter and the valve body, and the heater is arranged close to the valve body.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0022] The arc-shaped baffle is mounted on the upper side of the level switch probe and is arranged vertically opposite the level switch probe. This arc-shaped baffle can block dust particles falling from the dust collector hopper, preventing them from impacting the level switch probe and protecting the level switch probe. The structure is simple and effective. Compressed air enters the inner cavity through the air supply pipe and is blown toward the upper side of the level switch probe from the multiple air outlets, clearing dust from the upper side of the level switch probe. When excessive dust accumulates on the level switch probe, the level switch alarms. The valve body opens for a set time, and air is blown toward the level switch probe through the multiple air outlets. If the alarm disappears, the level switch alarm is a false alarm. If the alarm persists, it indicates a true alarm and the level in the dust collector hopper is at its true level. Therefore, maintenance personnel do not need to disassemble the material level switch for inspection and manual cleaning, which reduces the workload of maintenance personnel. In addition, each time the alarm of the material level switch probe is confirmed, the dust or dust accumulation on the material level switch probe can be cleaned, reducing the frequency of subsequent false alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic structural diagram of a dust collector material level switch purge device provided by an embodiment of the utility model;

[0024] Figure 2 This is a schematic front view of the arc-shaped baffle in an embodiment of the present utility model;

[0025] Figure 3 This is a side view of a curved baffle in an embodiment of the present invention;

[0026] Figure 4 It is a bottom view schematic diagram of the arc-shaped baffle in the embodiment of the present utility model.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Arc-shaped baffle; 11. Inner cavity; 12. Air inlet; 13. Air outlet; 14. Receiving groove; 15. Mounting end face; 2. Air supply pipe; 3. Valve body; 31. Solenoid valve; 4. Mounting block; 5. Heater; 6. Filter; a. Dust collector hopper; b. Level switch probe. DETAILED DESCRIPTION

[0029] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0031] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0032] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.

[0033] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0034] Reference Figures 1 to 4 The utility model provides a dust collector material level switch purge device, comprising:

[0035] An arc-shaped baffle 1 is installed in the dust collector hopper a and is located on the upper side of the material level switch probe b and is arranged opposite to the material level switch probe b. The arc-shaped baffle 1 has an inner cavity 11, an air inlet 12 connecting the inner cavity 11 with the external environment, and a plurality of air outlets 13. The plurality of air outlets 13 are located on the side of the arc-shaped baffle 1 facing the material level switch probe b.

[0036] an air supply pipe 2, one end of which is connected to the air inlet 12 and the other end of which is used for the compressed gas to enter; and

[0037] The valve body 3 is provided on the air supply pipe 2 .

[0038] The arc-shaped baffle 1 is mounted on the upper side of the level switch probe rod b and is arranged vertically opposite the level switch probe rod b. This arc-shaped baffle 1 can block dust particles falling from the dust collector hopper a, preventing them from impacting the level switch probe rod b and protecting it. The structure is simple and effective. Compressed air enters the inner cavity 11 through the air supply pipe 2 and is blown toward the upper side of the level switch probe rod b through the multiple air outlets 13, clearing dust from the upper side of the level switch probe rod b. When excessive dust accumulates on the level switch probe rod b, the level switch alarms. The valve body 3 opens for a set time, and air is blown toward the level switch probe rod b through the multiple air outlets 13. If the alarm disappears, the level switch alarm is false. If the alarm persists, it indicates a true alarm and the level in the dust collector hopper a is at its true level. Therefore, maintenance personnel do not need to disassemble the material level switch for inspection and manual cleaning, which reduces the workload of maintenance personnel. In addition, each time the alarm of the material level switch probe rod b is confirmed, the dust or dust accumulation on the material level switch probe rod b can be cleaned, reducing the frequency of subsequent false alarms.

[0039] Specifically, the arc-shaped baffle 1 is formed with a receiving slot 14, which accommodates the material level switch probe rod b, with the slot opening of the receiving slot 14 protruding from the material level switch probe rod b. The multiple air outlets 13 are each disposed on the wall of the receiving slot 14. The orientation of the slot opening of the receiving slot 14 is not restricted, as long as it can accommodate the material level switch probe rod b. The slot opening of the receiving slot 14 can be oriented in the same direction as the width of the material level switch probe rod b. This allows the arc-shaped baffle 1 to protect against the impact of falling dust particles, while also allowing dust that lands on the outer surface of the arc-shaped baffle 1 to fall into the dust collector hopper a, preventing dust accumulation on the upper side of the arc-shaped baffle 1.

[0040] More specifically, in this embodiment, referring to Figure 1 and Figure 2 The notch of the receiving groove 14 is arranged downward, thereby surrounding the upper side of the material level switch probe rod b and both sides along its width direction. This not only blocks dust particles falling from above, but also fully protects the material level switch probe rod b and prevents dust accumulation on the material level switch probe rod b. Dust particles that fall on the upper side of the curved baffle 1 can slide down along its curved outer surface and into the dust collector hopper a.

[0041] In another embodiment, the arc-shaped opening of the arc-shaped baffle 1 is arranged upward; the multiple air outlets 13 are located on the lower side of the arc-shaped baffle 1. The shape of the lower side of the arc-shaped baffle 1 is also an arc with the arc-shaped opening facing upward; among the multiple air outlets 13, the multiple air outlets 13 located at the lowest position of the lower side of the arc-shaped baffle 1 spray compressed gas downward, and the remaining multiple air outlets 13 spray toward both sides of the material level switch probe b in the width direction, and the closer to the two ends of the lower side of the arc-shaped baffle 1, the larger the angle between the direction of the compressed gas sprayed by the corresponding multiple air outlets 13 and the vertical direction, so that the dust can be quickly and comprehensively blown away from the material level switch probe b, thereby improving the spray cleaning efficiency, simple structure, and efficient cleaning.

[0042] Furthermore, in this embodiment, referring to Figure 1The valve body 3 is configured as a solenoid valve 31. The dust collector level switch purge device also includes a circuit board assembly electrically connected to the solenoid valve 31 and the level switch. When the level switch issues an alarm, the solenoid valve 31 is controlled to open, and the air supply pipe 2 delivers compressed gas into the inner cavity 11. The multiple air outlets 13 purge the level switch probe b for 5-10 seconds. If the level switch alarm disappears after 5-10 seconds of purging, it is determined to be a false alarm, and the solenoid valve 31 is controlled to close. If the level switch still alarms after 5-10 seconds of purging, it is determined to be a true alarm, and the solenoid valve 31 is controlled to close. This enables automatic control, reducing human operation and the workload of maintenance personnel.

[0043] The present invention does not limit the installation method of the arc-shaped baffle 1, as long as it can be installed on the upper side of the material level switch probe rod b and cover the material level switch probe rod b.

[0044] In this embodiment, referring to Figure 1 、 Figure 3 and Figure 4 One end of the arc-shaped baffle 1 distributed along its length direction is a mounting end surface 15, and the mounting end surface 15 is used to adapt to the side wall of the dust collector ash hopper a, and the mounting end surface 15 is connected to a mounting block 4, and the mounting block 4 is used to be installed in the mounting hole of the dust collector ash hopper a and has a cavity connected to the air inlet 12; the air supply pipe 2 is connected to the cavity; thereby, the arc-shaped baffle 1 is installed on the dust collector ash hopper a, with a simple structure and easy installation.

[0045] In this embodiment, continue to refer to Figure 1 、 Figure 3 and Figure 4 The plurality of gas outlets 13 are arranged in a matrix, thereby ensuring that the plurality of gas outlets 13 can evenly spray compressed gas toward the upper side of the material level switch probe rod b.

[0046] Since the dust collector ash hopper a requires that the temperature of the dust collector ash hopper a is higher than the flue gas dew point temperature, in order to prevent the compressed air from entering the dust collector ash hopper a and causing the caking accident, in this embodiment, the dust collector ash hopper a is required to be higher than the flue gas dew point temperature. Figure 1 The dust collector level switch purge device further includes a heater 5 and a filter 6. Both the heater 5 and the filter 6 are disposed between the end of the air supply pipe 2 for compressed gas entry and the valve body 3, with the heater 5 being disposed close to the valve body 3. Thus, the low-temperature compressed gas containing water, oil, and gas is first filtered through the filter 6, and then heated by the heater 5 before entering the inner cavity 11, effectively addressing the issues of compressed air temperature and impurities.

[0047] Specifically, the filter 6 can be a filter element or a sponge. The heating device has a heating chamber, in which a resistance wire is arranged. The air supply pipe 2 is passed through the heating chamber, or the air supply pipe 2 includes the heating chamber.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust collector level switch purge device, characterized in that: include: An arc-shaped baffle is installed in the dust collector hopper and is located on the upper side of the material level switch probe and is arranged opposite to the material level switch probe. The arc-shaped baffle has an inner cavity, an air inlet for connecting the inner cavity with the external environment, and multiple air outlets. The multiple air outlets are located on the side of the arc-shaped baffle facing the material level switch probe; an air supply pipe, one end of which is connected to the air inlet, and the other end of which is used for the entry of compressed gas; as well as, a valve body, provided on the air supply pipe; A heater and a filter are both arranged between the end of the air supply pipe for compressed gas to enter and the valve body, and the heater is arranged close to the valve body.

2. The dust collector level switch purging device according to claim 1, characterized in that: The arc-shaped baffle is formed with a receiving groove, the receiving groove is used to receive the material level switch probe rod, and the notch of the receiving groove is used to protrude from the material level switch probe rod; The plurality of air outlets are all arranged on the groove wall of the containing groove.

3. The dust collector level switch purging device according to claim 2, characterized in that: The notch of the accommodating groove is arranged downward.

4. The dust collector level switch purging device according to claim 1, characterized in that: The arc-shaped opening of the arc-shaped baffle is arranged upward; The plurality of air outlets are located on the lower side of the arc-shaped baffle.

5. The dust collector level switch purging device according to claim 1, characterized in that: The valve body is configured as a solenoid valve; The dust collector material level switch purging device further includes a circuit board assembly, which is used to be electrically connected to the solenoid valve and the material level switch.

6. The dust collector level switch purging device according to claim 1, characterized in that: One end of the arc-shaped baffle along its length direction is a mounting end surface, the mounting end surface is adapted to fit with the side wall of the dust collector hopper, and the mounting end surface is connected to a mounting block, the mounting block is used to be installed in the mounting hole of the dust collector hopper and has a cavity communicated with the air inlet; The air supply pipe is communicated with the cavity.

7. The dust collector level switch purging device according to claim 1, characterized in that: The plurality of air outlets are arranged in a matrix.

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