Cleaning device for flue demister

Abstract

The utility model relates to the technical field of flue gas treatment, and provides a flue demister cleaning device which comprises a driving part, fixing parts and a cleaning part, the fixing parts are arranged at the top and the bottom of a demister and used for fixing the demister to a flue wall plate; the driving component is used for driving the cleaning component to move along the fixing component; the cleaning component comprises a nozzle set arranged in the inlet and / or outlet direction of the demister, the nozzle set right faces the demister, the nozzle set is connected with an external water source, and nozzles are used for cleaning the demister. According to the scheme of the utility model, the demister is cleaned by the nozzles in the nozzle group through the nozzle group connected with the external water source, the nozzle group directly faces the demister, and the movement stroke of the nozzle group can effectively cover the demister, so that the generation of waste water is reduced, and the movement direction is ensured due to the arrangement direction of the fixed part, so that the demister can be conveniently cleaned. The demister can be effectively covered, so that the cleaning effect of the demister is ensured.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of flue gas treatment, in particular to a flue demister cleaning device. BACKGROUND

[0002] In the sintering flue gas wet desulfurization + SCR denitration process arrangement, in order to reduce the moisture content of the flue gas, a flue demister is usually installed before the SCR denitration for separating the liquid droplets carried by the flue gas. Since the separated liquid droplets contain solid substances such as gypsum, there is a risk of demister fouling, which requires regular online flushing to keep the demister blade surface clean and ensure the normal operation of the demister and the controlled system resistance.

[0003] The flue demister is arranged inside the flue, and generally one flushing water pump is configured with multiple flushing water pipes, and a plurality of spray heads are installed on each flushing water pipe. Since the spray heads are fixedly installed, uneven flushing and even flushing blind area may occur under the action of the airflow. In order to avoid the flushing blind area, a design with a coverage rate of 300% is usually adopted, which results in a large amount of flushing water being wasted and a large amount of wastewater being generated.

[0004] Therefore, how to effectively and energy-efficiently complete the cleaning of the flue demister has become a problem to be solved. CONTENT OF THE UTILITY MODEL

[0005] One of the technical problems to be solved by the present disclosure is how to effectively and energy-efficiently complete the cleaning of the flue demister.

[0006] To solve the above technical problem, in a first aspect, the utility model provides a flue demister cleaning device, comprising: a driving component, a fixing component and a cleaning component, wherein the fixing component is arranged at the top and bottom of the demister for fixing the demister to the flue wall panel; the driving component is used to drive the cleaning component to move along the arrangement direction of the fixing component; the cleaning component comprises a nozzle group arranged in the inlet and / or outlet direction of the demister, the nozzle group faces the demister, and the nozzle group is connected to an external water source to clean the demister by using the nozzle.

[0007] In combination with the first aspect, in a possible implementation manner of the first aspect, the fixing component comprises a sliding rail arranged in the inlet and / or outlet direction of the demister, and the cleaning component comprises a pulley which slides along the sliding rail under the driving of the driving component.

[0008] In combination with the first aspect, in a possible implementation manner of the first aspect, the driving component comprises a pulley set, a steel wire and a driving motor, the steel wire is connected to the nozzle group, the driving motor drives the pulley set, and the steel wire cooperates with the pulley set to make the nozzle group slide along the sliding rail.

[0009] With reference to the first aspect, in a possible implementation manner of the first aspect, the pulleys matched with the slide rails respectively are arranged on the same side of the corresponding slide rails, and the cleaning component comprises a control component, and the control component comprises: a first control component, which is configured to release / lock the connection between the steel wire and the nozzle group.

[0010] With reference to the first aspect, in a possible implementation manner of the first aspect, the pulleys matched with the slide rails respectively are arranged on the opposite sides of the corresponding slide rails, and the cleaning component comprises a control component, and the control component comprises: a second control component, which is configured to release / lock the connection between the steel wire and the nozzle group and the connection between the slide rail and the corresponding pulley.

[0011] With reference to the first aspect, in a possible implementation manner of the first aspect, the driving component comprises a driving motor, and the driving motor drives the pulley to drive the nozzle group to slide along the slide rail.

[0012] With reference to the first aspect, in a possible implementation manner of the first aspect, the pulleys matched with the slide rails respectively are arranged on the opposite sides of the corresponding slide rails, and the cleaning component comprises a control component, and the control component comprises: a third control component, which is configured to release / lock the connection between the slide rail and the corresponding pulley.

[0013] With reference to the first aspect, in a possible implementation manner of the first aspect, the fixing component has a gap, wherein, when the control component is configured to release the corresponding connection, the cleaning component is taken out through the gap; and when the control component is configured to lock the corresponding connection, the cleaning component is installed through the gap.

[0014] With reference to the first aspect, in a possible implementation manner of the first aspect, the nozzle group is in a first working position when located at one end of the demister, and is in a second working position when located at the other end of the demister, wherein the driving motor drives the pulley set to drive the nozzle group to reach the second working position from the first working position as a cleaning process, and after the cleaning process is completed, the nozzle group is driven to reach the first working position from the second working position; or, the driving motor drives the pulley set to drive the nozzle group to reach the second working position from the first working position and return to the first working position as a cleaning process.

[0015] With reference to the first aspect, in a possible implementation manner of the first aspect, the nozzle group is in a first working position when located at one end of the demister, and is in a second working position when located at the other end of the demister, wherein the driving motor drives the pulley set to drive the nozzle group to reach the second working position from the first working position as a cleaning process, and after the cleaning process is completed, the nozzle group is driven to reach the first working position from the second working position; or, the driving motor drives the pulley set to drive the nozzle group to reach the second working position from the first working position and return to the first working position as a cleaning process.

[0016] By the technical scheme, the flue demister cleaning device is provided, which comprises a driving component, a fixing component and a cleaning component, wherein the fixing component is arranged at the top and bottom of the demister and used for fixing the demister to the flue wall plate; the driving component is used for driving the cleaning component to move along the arrangement direction of the fixing component; the cleaning component comprises a nozzle group arranged in the inlet and / or outlet direction of the demister, the nozzle group faces the demister, and the nozzle group is connected with an external water source, and the demister is cleaned by the nozzles of the nozzle group. According to the scheme, the demister is fixed to the flue wall plate by the fixing component, and the nozzle group arranged in the inlet and / or outlet direction of the demister is contained in the cleaning component, and under the driving of the driving component, the nozzle group moves along the arrangement direction of the fixing component to clean the demister. In this process, when the nozzle group moves along the arrangement direction of the fixing component, the nozzle group connected with the external water source is used to clean the demister by the nozzles in the nozzle group. Since the nozzle group faces the demister and the movement stroke of the nozzle group can effectively cover the demister, the amount of washing water is greatly reduced, the generation of waste water is reduced, and the cleaning effect of the demister is ensured due to the arrangement direction of the fixing component ensuring the movement direction. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 FIG. 1 is a structural schematic diagram of a flue demister cleaning device disclosed by the embodiments of the present disclosure.

[0019] Explanation of reference signs:

[0020] 1 - driving component; 11 - pulley set; 12 - steel wire;

[0021] 2 - fixing component; 21 - slide rail;

[0022] 3 - cleaning component; 31 - nozzle group; 32 - pulley;

[0023] 4 - flue wall plate. DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided for the purpose of illustrating the principles of the present disclosure, and are not intended to limit the scope of the present disclosure, which can be realized in many different forms, not limited to the specific examples disclosed herein, but include all technical solutions falling within the scope of the claims.

[0025] The present disclosure provides these examples in order to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these examples should be interpreted as merely exemplary, and not as a limitation.

[0026] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0028] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0029] All terms used herein have the same meaning as understood by those of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and not in an idealized or overly formal sense unless expressly so defined herein.

[0030] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification.

[0031] As Figure 1 The utility model discloses a flue demister cleaning device, including: drive part 1, fixed part 2 and cleaning part 3, wherein,

[0032] Fixed part 2 sets up at the top and bottom of demister, is used for fixing demister on flue wallboard 4, drive part 1 is used for driving cleaning part 3 and moves along the fixed part 2 setting direction, and cleaning part 3 includes the nozzle group 31 of setting in the import and / or export direction of demister, and the nozzle group 31 is directly opposite demister, and the nozzle group 31 is connected with external water source, and utilizes the nozzle and carries out cleaning to demister.

[0033] Specifically, the nozzle group 31 set in the import and / or export direction of demister refers to that the nozzle group 31 can be set on one side of the import or export direction of demister, or set on both sides of the import and export direction of demister, Figure 1 Exemplarily shows that the nozzle group 31 is set on both sides of the import and export direction of demister.

[0034] The technical scheme is characterized in that the flue demister cleaning device comprises a driving component, a fixing component and a cleaning component, wherein the fixing component is arranged at the top and the bottom of the demister and is used for fixing the demister to the flue wall plate; the driving component is used for driving the cleaning component to move along the arrangement direction of the fixing component; and the cleaning component comprises a nozzle group arranged in the inlet and / or outlet direction of the demister, the nozzle group faces the demister, and the nozzle group is connected with an external water source and is used for cleaning the demister by means of the nozzles in the nozzle group. According to the technical scheme, the demister is fixed to the flue wall plate by the fixing component, and the nozzle group arranged in the inlet and / or outlet direction of the demister is contained in the cleaning component, and under the driving of the driving component, the nozzle group moves along the arrangement direction of the fixing component to complete the cleaning of the demister. In this process, when the nozzle group moves along the arrangement direction of the fixing component, the nozzle group connected with the external water source is used to clean the demister by means of the nozzles in the nozzle group. Since the nozzle group faces the demister and the movement stroke of the nozzle group can effectively cover the demister, the amount of washing water is greatly reduced, the generation of waste water is reduced, and the cleaning effect of the demister is ensured due to the arrangement direction of the fixing component ensuring the movement direction and effectively covering the demister.

[0035] In some optional embodiments, the fixing component 2 comprises a sliding rail 21 arranged in the inlet and / or outlet direction of the demister, and the cleaning component 3 comprises a pulley 32 which slides along the sliding rail 21 under the driving of the driving component 1.

[0036] Specifically, the sliding rail 21 arranged in the inlet and / or outlet direction of the demister means that the sliding rail 21 is arranged on one side or both sides according to the nozzle group 31. As shown in Figure 1 The sliding rail 21 arranged in the inlet and / or outlet direction of the demister is exemplarily shown.

[0037] Specifically, the movement track of the pulley 32 sliding along the sliding rail 21 under the driving of the driving component 1 is the movement track of the nozzle group 31 cleaning the demister.

[0038] In some optional embodiments, the driving component 1 comprises a pulley group 11, a steel wire 12 and a driving motor, the steel wire 12 is connected with the nozzle group 31, the driving motor drives the pulley group 11, and the steel wire 12 cooperates with the pulley group 11 to make the nozzle group 31 slide along the sliding rail 21.

[0039] Specifically, the connection between the steel wire 12 and the nozzle group 31 can be buckle connection or other connection modes, and the present embodiment does not make specific limitation on this.

[0040] Specifically, the driving motor drives the pulley set 11, and the steel wire 12 cooperates with the pulley set 11 to make the nozzle set 31 slide along the slide rail 21, which means that the pulley set 11 drives the steel wire 12 to move under the driving of the driving motor, and the steel wire 12 drives the nozzle set 31 to slide along the slide rail 21. As shown in Figure 1 It should be understood that if the nozzle set 31 is arranged on one side of the inlet or outlet direction of the demister, the pulley set 11, the steel wire 12, and the slide rail 21 are also arranged on one side of the inlet or outlet direction of the demister in the corresponding embodiment.

[0041] In the related art, since the flushing nozzle is arranged inside the flue, it is difficult to accurately judge whether the nozzle is blocked or dropped, whether the spraying effect is good, or the like. For example, under the production condition, if a nozzle is dropped or blocked, it is almost impossible to intuitively judge the internal flushing condition from the pressure reading.

[0042] However, if the demister flushing effect is poor, the demister blade will be blocked, the air flow will be blocked, the denitration induced draft fan load will be increased, and in severe cases, the denitration system may be shut down, and the sintering machine cannot be produced. Therefore, how to determine the use condition of the nozzle or replace the damaged nozzle is a technical problem to be solved.

[0043] In some optional embodiments, the pulleys 32 respectively cooperating with the slide rails 21 are arranged on the same side of the corresponding slide rails 21, and the cleaning component 3 comprises a control component, and the control component comprises: a first control component, the first control component being used to release / lock the connection between the steel wire 12 and the nozzle set 31.

[0044] Specifically, as shown in Figure 1 It should be understood that if the nozzle set 31 is arranged on one side of the inlet or outlet direction of the demister, the pulley set 11, the steel wire 12, and the slide rail 21 are also arranged on one side of the inlet or outlet direction of the demister in the corresponding embodiment.

[0045] Specifically, the first control component, the first control component being used to release / lock the connection between the steel wire 12 and the nozzle set 31 means that the first control component can release the connection between the steel wire 12 and the nozzle set 31, so as to complete the disassembly of the cleaning component 3; and the first control component can lock the connection between the steel wire 12 and the nozzle set 31, so as to complete the installation of the cleaning component 3.

[0046] In some optional embodiments, the pulleys 32 respectively cooperating with the slide rails 21 are arranged on the opposite side of the corresponding slide rails 21, and the cleaning component 3 comprises a control component, and the control component comprises: a second control component, the second control component being used to release / lock the connection between the steel wire 12 and the nozzle set 31 and the connection between the slide rail 21 and the corresponding pulley 32.

[0047] Specifically, the pulleys 32 that cooperate with the slide rail 21 are located on the opposite side of the corresponding slide rail 21. This means that the first pulley that cooperates with the fixing part 2 at the top of the demister is located in the direction of the top of the demister and cooperates with the first slide rail in that direction, and the second pulley that cooperates with the fixing part 2 at the bottom of the demister is located in the direction of the bottom of the demister and cooperates with the second slide rail in that direction.

[0048] Specifically, the second control component, which is used to disconnect / lock the connection between the steel wire 12 and the nozzle assembly 31, and the connection between the slide rail 21 and the corresponding pulley 32, means that the second control component can disconnect the steel wire 12 from the nozzle assembly 31, and disconnect the first pulley from the first slide rail, the second pulley, and the second slide rail, thereby completing the disassembly of the cleaning component 3; the second control component can also lock the connection between the steel wire 12 and the nozzle assembly 31, and lock the connection between the first pulley from the first slide rail, the second pulley, and the second slide rail, thereby completing the installation of the cleaning component 3.

[0049] In some alternative embodiments, the drive component 1 includes a drive motor that drives a pulley 32 to make the nozzle assembly 31 slide along the slide rail 21.

[0050] Specifically, driving the pulley 32 with a drive motor means that the drive motor directly acts on the pulley 32, thereby causing the pulley 32 to drive the nozzle assembly 31 to slide along the slide rail 21.

[0051] In some alternative embodiments, pulleys 32 that cooperate with slide rail 21 are arranged on the opposite side of the corresponding slide rail 21. The cleaning component 3 includes a control component, which includes a third control component for releasing / locking the connection between the slide rail 21 and the corresponding pulley 32.

[0052] Specifically, the third control component is used to release / lock the connection between the slide rail 21 and the corresponding pulley 32. The third control component can release the connection between the first pulley and the first slide rail, the second pulley, and the second slide rail, thereby completing the disassembly of the cleaning component 3; the third control component can lock the connection between the first pulley and the first slide rail, the second pulley, and the second slide rail, thereby completing the installation of the cleaning component 3.

[0053] In some alternative embodiments, the fixing component 2 has a gap through which the cleaning component 3 is removed when the control component is used to release the corresponding connection; and through which the cleaning component 3 is installed when the control component is used to lock the corresponding connection.

[0054] Specifically, such as Figure 1 As shown, the fixing component 2 has a gap. In the above embodiment, the cleaning component 3 is disassembled or installed by the first control component, the second control component, and the third control component, respectively. Thus, the cleaning component 3 can be taken out or installed by means of the gap in the fixing component 2.

[0055] In the embodiment, the corresponding connection is released by the control component to complete the dismounting of the cleaning component, so as to check the damage of the nozzles in the nozzle group, replace the component when the nozzles are damaged, and lock the corresponding connection by the control component to complete the mounting of the cleaning component after the replacement is not needed or completed, so as to ensure the normal work of the cleaning component and provide a basis for ensuring the cleaning effect of the demister.

[0056] In some optional embodiments, the first working position is that the nozzle group 31 is located at one end of the demister, and the second working position is that the nozzle group 31 is located at the other end of the demister.

[0057] The driving motor drives the pulley set 11 to make the nozzle group 31 reach the second working position from the first working position as a cleaning process, and make the nozzle group 31 return to the first working position from the second working position after the cleaning process is completed; or, the driving motor drives the pulley set 11 to make the nozzle group 31 reach the second working position from the first working position and return to the first working position as a cleaning process.

[0058] Specifically, as shown in Figure 1 two nozzle groups 31 are located at the first working position and the second working position respectively. The nozzle group 31 reaches the second working position from the first working position as a cleaning process, and returns to the original working position from the second working position after the cleaning is completed; or, reaches the second working position from the first working position and returns to the first working position as a cleaning process. Similarly, on this basis, one or more of the above processes can be used as a cleaning process, which is not specifically limited in the embodiment and can be set according to the actual working condition.

[0059] In some optional embodiments, the first working position is that the nozzle group 31 is located at one end of the demister, and the second working position is that the nozzle group 31 is located at the other end of the demister.

[0060] The driving motor drives the pulley set 11 to make the nozzle group 31 reach the second working position from the first working position as a cleaning process, and make the nozzle group 31 return to the first working position from the second working position after the cleaning process is completed; or, the driving motor drives the pulley set 11 to make the nozzle group 31 reach the second working position from the first working position and return to the first working position as a cleaning process.

[0061] Specifically, as shown in Figure 1As shown, the two nozzle groups 31 are located at the first working position and the second working position respectively. Among them, the nozzle group 31 can be used as a cleaning process from the first working position to the second working position, and after the cleaning is completed, it is driven by the driving motor to return to the original working position; or, from the first working position to the second working position and back to the first working position as a cleaning process. Similarly, on this basis, one or more of the above processes can be used as a cleaning process, and the present embodiment does not make specific limitations, and can be set according to the actual working conditions.

[0062] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0063] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A flue gas demister cleaning device, characterized in that, include: The drive component (1), the fixing component (2), and the cleaning component (3) are, among which, The fixing component (2) is provided at the top and bottom of the demister and is used to fix the demister to the flue wall panel (4). The driving component (1) is used to drive the cleaning component (3) to move along the direction set by the fixing component (2); The cleaning component (3) includes a nozzle group (31) disposed in the inlet and / or outlet direction of the demister. The nozzle group (31) is directly facing the demister and is connected to an external water source. The nozzles are used to clean the demister.

2. The apparatus according to claim 1, characterized in that, The fixing component (2) includes a slide rail (21) disposed in the inlet and / or outlet direction of the demister. The cleaning component (3) includes a pulley (32) which slides along the slide rail (21) under the drive of the drive component (1).

3. The apparatus according to claim 2, characterized in that, The driving component includes (1): a pulley block (11), a steel wire (12) and a drive motor. The steel wire (12) is connected to the nozzle group (31). The drive motor drives the pulley block (11). The steel wire (12) cooperates with the pulley block (11) to make the nozzle group (31) slide along the slide rail (21).

4. The apparatus according to claim 3, characterized in that, The pulleys (32) that cooperate with the slide rail (21) are respectively arranged on the same side of the corresponding slide rail (21). The cleaning component (3) includes a control component, which includes a first control component for releasing / locking the connection between the steel wire (12) and the nozzle assembly (31).

5. The apparatus according to claim 3, characterized in that, The pulleys (32) that cooperate with the slide rail (21) are respectively arranged on the opposite side of the corresponding slide rail (21). The cleaning component (3) includes a control component, which includes a second control component for releasing / locking the connection between the steel wire (12) and the nozzle group (31), and the connection between the slide rail (21) and the corresponding pulley (32).

6. The apparatus according to claim 2, characterized in that, The driving component (1) includes a driving motor that drives the pulley (32) to make the nozzle assembly (31) slide along the slide rail (21).

7. The apparatus according to claim 6, characterized in that, The pulleys (32) that cooperate with the slide rails (21) are respectively arranged on the opposite side of the corresponding slide rails (21). The cleaning component (3) includes a control component, which includes a third control component for releasing / locking the connection between the slide rails (21) and the corresponding pulleys (32).

8. The apparatus according to any one of claims 4, 5 or 7, characterized in that, The fixing component (2) has a gap, wherein, When the control component is used to disconnect the corresponding connection, the cleaning component (3) is removed through the gap; and When the control component is used to lock the corresponding connection, the cleaning component (3) is installed through the gap.

9. The apparatus according to claim 3, characterized in that, The nozzle assembly (31) is in a first working position when it is located at one end of the demister, and in a second working position when it is located at the other end of the demister. The drive motor drives the pulley assembly (11) to move the nozzle assembly (31) from the first working position to the second working position as one cleaning process, and after completing one cleaning process, moves the nozzle assembly (31) from the second working position to the first working position; or, The drive motor drives the pulley group (11) so that the nozzle group (31) moves from the first working position to the second working position and back to the first working position as one cleaning process.

10. The apparatus according to claim 6, characterized in that, The nozzle assembly (31) is in a first working position when it is located at one end of the demister, and in a second working position when it is located at the other end of the demister. The drive motor drives the pulley (32) to move the nozzle assembly (31) from the first working position to the second working position as one cleaning process, and after completing one cleaning process, the nozzle assembly (31) moves from the second working position to the first working position; or, The drive motor drives the pulley (32) so that the nozzle group (31) moves from the first working position to the second working position and back to the first working position as one cleaning process.

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