Filter belt deviation detection mechanism and belt type filter pressing equipment

Abstract

The utility model discloses a filter belt deviation detection mechanism and belt type filter pressing equipment, and belongs to the technical field of filter belt deviation detection. The filter belt deviation detection mechanism comprises a trigger folded plate which can move towards or away from the mounting piece; the trigger folded plate is provided with a trigger part and a detection part; the mounting piece is used for being connected with the machine shell and is provided with a sensor; the signal input end of the sensor faces the detection part; the end face, corresponding to the signal input end of the sensor, of the detection part is a detection face, and the detection face has height difference or width difference in the direction from the filter belt to the installation piece. In the deviation process of the filter belt, the filter belt abuts against the trigger part and drives the trigger folded plate to move towards the mounting piece; in the process of triggering the folded plate to move towards the mounting piece, the distance between the folded plate and the detection surface is obtained through the sensor so as to detect the offset of the filter belt; the belt type filter pressing equipment comprises the filter belt deviation detection mechanism. According to the scheme, the problem that deviation of the filter belt cannot be found in time in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter belt deviation detection technical field especially relates to a filter belt deviation detection mechanism and belt filter press equipment. BACKGROUND

[0002] In the process of transmission, the filter belt may deviate due to various reasons. The deviation of the filter belt may increase the friction between the filter belt and the filter belt roller, making the equipment unstable, increasing the vibration and noise of the equipment, and reducing the working efficiency of the equipment. When the filter belt deviates to a certain extent, it is also easy to cause the filter belt to roll over the material, so that the stress on one side of the filter belt exceeds the longitudinal tensile strength, thereby causing the filter belt to tear horizontally and other safety hazards. Currently, in the process of transmission of the filter belt, the deviation of the filter belt is not easy to be discovered, especially when the filter belt is located inside the transmission of the shell.

[0003] Therefore, it is a technical problem to be solved by those skilled in the art to provide a filter belt deviation detection mechanism and a belt filter press equipment that can discover the deviation of the filter belt in time. SUMMARY

[0004] The utility model discloses a filter belt deviation detection mechanism and belt filter press equipment to solve the problem of not timely discovery of filter belt deviation in the related art.

[0005] In order to solve the above problems, the utility model adopts the following technical scheme:

[0006] In a first aspect, the utility model provides a filter belt deviation detection mechanism, comprising:

[0007] The trigger flap can move towards or away from the mounting piece. The trigger flap has a trigger part and a detection part.

[0008] The mounting piece is used to connect with the shell and is provided with a sensor. The signal input end of the sensor faces the detection part.

[0009] The end face of the detection part corresponding to the signal input end of the sensor is a detection face. The detection face has a height difference or a width difference from the direction of the filter belt to the mounting piece.

[0010] In the process of deviation of the filter belt, the filter belt abuts against the trigger part and drives the trigger flap to move towards the mounting piece. In the process of movement of the trigger flap towards the mounting piece, the distance between the sensor and the detection face is obtained to detect the deviation of the filter belt.

[0011] In some schemes, the trigger flap is connected with the mounting piece through an elastic piece.

[0012] In some schemes, the mounting piece has a mounting groove. The sensor is clamped in the mounting groove.

[0013] In some schemes, the installation groove extends along the length direction of the filter belt, and the sensor can move along the extension direction of the filter belt.

[0014] In some schemes, the installation member is provided with a protruding part towards the side of the triggering flap, and the protruding part has a parallel section parallel to the installation member.

[0015] The installation groove is a space between the parallel section and the installation member.

[0016] In some schemes, the installation member is further provided with a fixing groove, and a bolt is connected to the shell through the fixing groove.

[0017] In some schemes, the fixing groove extends along the length direction of the filter belt, and the installation member can move along the extension direction of the fixing groove when connected to the shell.

[0018] In some schemes, a filter belt roller is further included, and the filter belt roller is rotationally connected to the installation member through a rotating shaft.

[0019] The filter belt is sleeved on the filter belt roller.

[0020] In some schemes, the extension direction of the installation groove is perpendicular to the moving path of the triggering flap.

[0021] In the second aspect, the utility model further provides a belt filter press equipment, including the filter belt offset detection mechanism in the first aspect.

[0022] The technical scheme of the utility model can achieve the following beneficial effects:

[0023] The filter belt offset detection mechanism provided by the application can achieve the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0025] Figure 1 It is the axial view of the utility model;

[0026] Figure 2 It is the schematic diagram of the utility model in use;

[0027] Figure 3 is the matching relationship between the sensor and the detection part Figure 1 ;

[0028] Figure 4 is the matching relationship between the sensor and the detection part Figure 2 ;

[0029] Figure 5 is the matching relationship between the sensor and the detection part Figure 3 ;

[0030] Figure 6 is the matching relationship between the sensor and the detection part Figure 4 ;

[0031] Figure 7 is the matching relationship between the sensor and the detection part Figure 5 ;

[0032] Figure 8 is the matching relationship between the sensor and the detection part Figure 6 ;

[0033] Figure 9 is the matching relationship between the sensor and the detection part Figure 7 ;

[0034] Figure 10 is the matching relationship between the sensor and the detection part Figure 8 .

[0035] In the figure: 100, mounting piece; 110, fixing groove; 120, protruding part; 121, parallel section; 122, mounting groove; 200, trigger flap; 210, trigger part; 220, detection part; 221, detection surface; 300, sensor; 400, elastic piece; 500, filter belt roller; 600, filter belt. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0037] The terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the term "first", "second", and the like does not limit the order in which the objects are used, unless explicitly stated otherwise. The objects differentiated by "first", "second", and the like are generally of the same kind and the number of objects differentiated by "first", "second", and the like is not limited to two unless explicitly stated otherwise.

[0038] The inventor found in use that during the transmission of the filter belt 600, the filter belt 600 may deviate due to various reasons, such as rack skewing, improper installation of the filter belt roller 500, and the like. The deviation of the filter belt 600 may increase the friction between the filter belt 600 and the filter belt roller 500, making the equipment unstable, increasing the vibration and noise of the equipment, and reducing the working efficiency of the equipment. When the filter belt 600 deviates to a certain extent, it is also easy to cause the filter belt 600 to roll over the material, so that the unilateral stress of the filter belt 600 exceeds the longitudinal tensile strength thereof, thereby causing the filter belt 600 to be transversely torn and other safety hazards. At present, the deviation of the filter belt 600 during the transmission of the filter belt 600 is not easy to be found, especially when the filter belt 600 is located inside the machine shell during transmission.

[0039] The filter belt 600 deviation detection mechanism and the belt type filter press provided by the present application will be described in detail below in combination with the accompanying drawings and specific embodiments and application scenarios. Figures 1 to 10 The filter belt 600 deviation detection mechanism and the belt type filter press provided by the present application will be described in detail below in combination with the accompanying drawings and specific embodiments and application scenarios.

[0040] Please refer to Figures 1-2 The filter belt 600 deviation detection mechanism provided by some embodiments of the present application includes a trigger flap 200, a mounting member 100, and a sensor 300.

[0041] As shown in Figure 1 , the mounting member 100 is used as a mounting base member for connecting with the machine shell. The sensor 300 and the trigger flap 200 are mounted through the mounting member 100.

[0042] It should be noted that the mounting member 100 for connecting with the machine shell means that it can be installed inside the machine shell or outside the machine shell.

[0043] As shown in Figure 1 , the trigger flap 200 can move towards or away from the mounting member 100. The trigger flap 200 has a trigger portion 210 and a detection portion 220. The sensor 300 is arranged on the mounting member 100, and the signal input end thereof faces the detection portion 220. The end face of the detection portion 220 corresponding to the signal input end of the sensor 300 is a detection face 221. The signal output end of the sensor 300 is connected with a system, and the signal detected by the signal output end is transmitted to the system. The system processes the signal to determine whether the filter belt 600 deviates.

[0044] It should be noted that the connection mode of the signal input end of the sensor 300 with the system and the signal processing of the sensor 300 by the system both belong to the prior art and are not the improvements of the present embodiment, and thus are not described herein.

[0045] During the offset of the filter belt 600, the filter belt 600 abuts against the trigger portion 210 and drives the trigger flap 200 to move towards the mounting member 100; during the movement of the trigger flap 200 towards the mounting member 100, the distance between the sensor 300 and the detection surface 221 is obtained to detect the offset of the filter belt 600.

[0046] In the present embodiment, the included angle between the trigger portion 210 and the detection portion 220 is preferably 90°, and the end surface of the trigger portion 210 close to the filter belt 600 is parallel to the length direction of the filter belt 600. In this way, when the filter belt 600 is offset, the contact area between the end surface of the filter belt 600 and the trigger portion 210 is larger, and the trigger portion 210 is better driven to move.

[0047] In some embodiments, the detection surface 221 is located at the top of the detection portion 220, and the sensor 300 is located above the detection portion 220.

[0048] The sensor 300 can be a photoelectric sensor 300, a distance sensor 300 or the like, and the present embodiment is not limited in this regard.

[0049] The trigger flap 200 is made in an integral molding manner, for example, is directly made by using a stamping process on a sheet metal part; the trigger flap 200 can also be made in a segmented manner, and the trigger portion 210 and the detection portion 220 are connected by welding, buckling, clamping or other manners.

[0050] As preferred in the present embodiment, the mounting member 100 is arranged on both sides of the filter belt 600 in the width direction, so as to respectively mount the trigger flap 200 and the sensor 300 on both sides of the filter belt 600 in the width direction, and thus the offset of the filter belt 600 on both sides in the width direction can be detected.

[0051] In some embodiments, the detection surface 221 is located at the bottom of the detection portion 220, and the sensor 300 is located below the detection portion 220.

[0052] In some embodiments, as shown in FIG. 6, the detection surface 221 is located at the bottom of the detection portion 220, and the sensor 300 is located below the detection portion 220. Figures 3-6As shown, the detection surface 221 has a width difference from the filter belt 600 towards the mounting component 100. When the filter belt 600 does not shift during transmission, or the shift is within the allowable range, the signal input terminal of the sensor 300 either does not receive a signal from the detection surface 221, or continuously receives a signal from the detection surface 221, due to the width difference. When the filter belt 600 shifts during transmission, and the shift exceeds a set threshold, the signal input terminal of the sensor 300 receives a signal from the detection surface 221, or loses the signal from the detection surface 221; at this time, the system connected to the signal input terminal of the sensor 300 issues a warning to indicate that the filter belt 600 has shifted.

[0053] In this preferred embodiment, the sensor 300 is preferably a photoelectric sensor 300. By utilizing the characteristics of the photoelectric sensor 300, it can better cooperate with the detection surface 221 to realize the detection of the offset of the filter belt 600.

[0054] In this embodiment, as Figure 3 and Figure 5 As shown, the width of the detection surface 221 near the filter belt 600 is greater than the width of the detection surface 221 near the mounting component 100. When the filter belt 600 does not shift during transmission, or the shift is within the allowable range, the signal input terminal of the sensor 300 does not receive a signal from the detection surface 221, such as... Figure 3 (I) and Figure 5 As shown in (I), this indicates that the filter belt 600 has not shifted or the shift is within the allowable range. When the filter belt 600 shifts during transmission, and the shift exceeds the set threshold, the signal input terminal of the sensor 300 receives a signal from the detection surface 221, as shown in (I). Figure 3 (II) and Figure 5 As shown in (II); at this point, the system issues a warning to indicate a 600° filter band offset.

[0055] In this embodiment, as Figure 4 and Figure 6 As shown, the width of the detection surface 221 near the filter belt 600 is smaller than the width of the detection surface 221 near the mounting member 100. When the filter belt 600 does not shift during transmission, or the shift is within the allowable range, the signal input terminal of the sensor 300 continuously receives signals from the detection surface 221, such as... Figure 4 (I) and Figure 6 As shown in (I), this indicates that the filter belt 600 has not shifted or the shift is within the allowable range. When the filter belt 600 shifts during transmission, and the shift exceeds the set threshold, the signal input terminal of the sensor 300 loses the signal from the detection surface 221. Figure 4 (II) and Figure 6As shown in (II); at this point, the system issues a warning to indicate a 600° filter band offset.

[0056] The side of the detection unit 220 can be an inclined slope, such as... Figure 3 and Figure 4 As shown; the side of the detection unit 220 can also be stepped, such as Figure 5 and Figure 6 As shown. The above structure achieves a width difference between the two sides of the detection surface 221, thereby enabling it to cooperate with the sensor 300. Correspondingly, the side surface of the detection unit 220 can also have other structures, as long as the widths of the two sides of the detection surface 221 are different.

[0057] In some embodiments, such as Figures 7-10 As shown, the detection surface 221 has a height difference from the filter belt 600 towards the mounting component 100. When the filter belt 600 does not shift during transmission, or the shift is within the allowable range, due to the height difference, the signal input terminal of the sensor 300 receives a gap between itself and the detection surface 221 that is greater than or less than a critical value. When the filter belt 600 shifts during transmission, and the shift exceeds the set threshold, the signal input terminal of the sensor 300 receives a gap value between itself and the detection surface 221 that is less than or greater than the critical value.

[0058] It should be noted that the critical value is obtained through debugging during the installation of the filter belt 600 offset detection mechanism and the filter belt 600. The critical value is different depending on the size of the filter belt 600 offset detection mechanism and the filter belt 600.

[0059] In this preferred embodiment, the sensor 300 is preferably a distance sensor 300. By utilizing the characteristics of the distance sensor 300, the distance between it and the detection surface 221 can be better obtained, so as to realize the detection of the offset of the filter belt 600.

[0060] In this embodiment, as Figure 7 and Figure 9 As shown, the height of the detection surface 221 near the filter belt 600 is greater than the height of the detection surface 221 near the mounting component 100. When the filter belt 600 does not shift during transmission, or the shift is within the allowable range, the gap between the sensor 300 and the detection surface 221 measured at the signal input terminal is greater than a critical value, such as... Figure 7 (I) and Figure 9 As shown in (I), this indicates that the filter belt 600 has not shifted or the shift is within the allowable range. When the filter belt 600 shifts during transmission, and the shift exceeds the set threshold, the gap between the sensor 300's signal input terminal and the detection surface 221 is less than the critical value, as shown in (I). Figure 7 (II) and Figure 9and (II) in FIG. 6B, the system issues a warning to indicate that the filter belt 600 is offset.

[0061] In the present embodiment, as shown in Figure 8 and Figure 10 the height of the detection surface 221 on the side close to the filter belt 600 is less than the height of the detection surface 221 on the side close to the mounting member 100. When the filter belt 600 is not offset or the offset is within the allowable range during transmission, the signal input end of the sensor 300 detects a gap between the detection surface 221 that is less than a critical value, as shown in (I) in FIG. 5A and (I) in FIG. 5B, indicating that the filter belt 600 is not offset or the offset is within the allowable range. Figure 8 Figure 10 When the filter belt 600 is offset during transmission and the offset is greater than the set threshold, the signal input end of the sensor 300 detects a gap between the detection surface 221 that is greater than the critical value, as shown in (II) in FIG. 5A and (II) in FIG. 5B, indicating that the filter belt 600 is offset. Figure 8 Figure 10 When the filter belt 600 is offset during transmission and the offset is greater than the set threshold, the signal input end of the sensor 300 detects a gap between the detection surface 221 that is greater than the critical value, as shown in (II) in FIG. 5A and (II) in FIG. 5B, indicating that the filter belt 600 is offset.

[0062] In the present embodiment, the detection surface 221 can be an inclined surface, as shown in Figure 7 and Figure 8 The detection surface 221 can also be a step, as shown in Figure 9 and Figure 10 The above structure is used to achieve the purpose of having a height difference between the two sides of the detection surface 221, so as to cooperate with the sensor 300. Correspondingly, the detection surface 221 can also have other structures, as long as the height of the two sides of the detection surface 221 is different.

[0063] As shown in Figure 1 the trigger flap 200 is connected to the mounting member 100 through the elastic member 400. During the process in which the filter belt 600 is offset and abuts against the trigger portion 210, the elastic member 400 is compressed and stores elastic potential energy. After the offset of the filter belt 600 is restored, the pressure applied by the filter belt 600 to the trigger portion 210 disappears, and the elastic potential energy of the elastic member 400 is released to drive the trigger flap 200 to restore to the initial position.

[0064] By using the elastic potential energy of the elastic member 400, after the offset of the filter belt 600 is restored, it is not necessary to manually adjust the position of the trigger flap 200, thereby reducing the working intensity of the maintenance personnel.

[0065] In the present embodiment, the elastic member 400 is preferably a coil spring.

[0066] ​​In the embodiment, the two ends of the elastic member 400 are preferably connected to the side of the trigger portion 210 away from the filter belt 600 and the inner side of the mounting member 100. During the displacement of the filter belt 600, the filter belt 600 directly acts on the trigger portion 210, and during the movement of the trigger portion 210, the spring can be directly and effectively compressed.

[0067] Correspondingly, the mounting member 100 can be provided with a guide groove, and one end of the trigger flap 200 is embedded in the guide groove and can move along the extension direction of the guide groove. By providing the guide groove, the trigger flap 200 can be supported in the height direction, avoiding the trigger flap 200 and the elastic member 400 from sagging under the action of gravity, which will not affect the cooperation between the trigger flap 200 and the filter belt 600 and the compression of the elastic member 400.

[0068] As shown in Figure 1 , the mounting member 100 has a mounting groove 122, and the sensor 300 is clamped in the mounting groove 122, thereby achieving the installation of the sensor 300.

[0069] As shown in Figure 1 , the mounting groove 122 extends along the length direction of the filter belt 600, and the sensor 300 can also move along the extension direction of the mounting groove 122. If the mounting member 100 is fixedly connected with the sensor 300, the parameters need to be accurately determined during the preliminary design, so that the sensor 300 cooperates with the detection portion 220 to achieve the detection of the displacement of the filter belt 600. By the mode that the sensor 300 can move in the mounting groove 122, only one approximate parameter needs to be confirmed, and the cooperation between the sensor 300 and the detection portion 220 is achieved by changing the position of the sensor 300 during the debugging of the equipment.

[0070] Specifically, as shown in Figure 1 , the side of the mounting member 100 facing the trigger flap 200 is provided with a protruding portion 120, and the protruding portion 120 has a parallel section 121 parallel to the mounting member 100. The mounting groove 122 is the space between the parallel section 121 and the mounting member 100.

[0071] In the actual processing process, the mounting member 100 is a ready-made bent sheet metal part on the market, and there is no space to install the sensor 300, and after the mounting member 100 is connected with the case, the space of the mounting member 100 is limited, and it is also not convenient to open a new mounting groove 122. Therefore, the protruding portion 120 is arranged on the side of the mounting member 100 facing the trigger flap 200 in the embodiment, so that the parallel section 121 of the protruding portion 120 and the mounting member 100 form a space for installing the sensor 300, thereby saving the manufacturing and processing cost.

[0072] In the embodiment, the protrusion 120 can be connected with the mounting member 100 by welding, gluing or the like.

[0073] As shown in Figure 1 , the extending direction of the mounting groove 122 is perpendicular to the moving path of the trigger flap 200. In the process of debugging the device moving sensor 300, since the extending direction of the mounting groove 122 is perpendicular to the moving path of the trigger flap 200, the positional relationship between the signal input end of the sensor 300 and the projection of the trigger flap 200 in the width direction of the filter belt 600 will change with the movement of the sensor 300; the positional relationship between the signal input end of the sensor 300 and the projection of the trigger flap 200 in the length direction of the filter belt 600 will not change with the movement of the sensor 300. When the extending direction of the mounting groove 122 is not perpendicular to the moving path of the trigger flap 200, the projection of the trigger flap 200 in the width direction of the filter belt 600 and the projection of the trigger flap 200 in the length direction of the filter belt 600 will both change. Therefore, by the way that the extending direction of the mounting groove 122 is perpendicular to the moving path of the trigger flap 200, it is beneficial to better debug the device, and the sensor 300 can be better moved to the appropriate working position.

[0074] As shown in Figure 1 , the mounting member 100 is further provided with a fixing groove 110, and the fixing groove 110 is a structure for connecting the mounting member 100 with a cabinet, and provides a mounting basis for the mounting member 100. When the mounting member 100 is fixed on the cabinet, the fixing groove 110 is aligned with the bolt hole of the cabinet, and a bolt is sequentially threaded through the fixing groove 110 and the bolt hole of the cabinet, so as to realize the fixed connection of the mounting member 100 and the cabinet.

[0075] As shown in Figure 1 , the fixing groove 110 extends along the length direction of the filter belt 600, and the fixing groove 110 can be relatively displaced with the bolt, so that the mounting member 100 can move on the cabinet along the extending direction of the fixing groove 110, so as to better adjust the position of the filter belt 600 offset detection mechanism.

[0076] Correspondingly, the number of the fixing grooves 110 can be one, two, three or more, which is not limited in the embodiment, as long as the fixing grooves 110 are parallel to each other.

[0077] As shown in Figure 1 and Figure 2 , the device further comprises a filter belt roller 500, and the filter belt roller 500 is rotationally connected with the mounting member 100 through a rotating shaft, and the filter belt 600 is sleeved on the filter belt roller 500. The mounting member 100 provides a mounting space for the filter belt roller 500, so that the filter belt 600 can be arranged close to the trigger flap 200, so as to better detect the offset of the filter belt 600.

[0078] In the embodiment, the number of the mount 100 is preferably four, and the number of the filter belt roller 500 is preferably two. Two mount 100 and one filter belt roller 500 form a group, so that both ends of the filter belt 600 can be sleeved on the filter belt roller 500, and the deviation of the filter belt 600 on both sides in the length direction can be better detected.

[0079] Correspondingly, the mount 100 connected with the shell in a sliding manner can also sleeve the filter belt 600 with different lengths by changing the distance between the mounts 100.

[0080] It should be noted that the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that comprises a list of elements does not only include those elements, but also other elements not expressly listed or inherent to such process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising the element.

[0081] In addition, it should be pointed out that the scope of the method and device in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in a reverse order according to the functions involved, for example, the described method can be performed in an order different from the described order, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0082] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A filter band offset detection mechanism characterized by, The application relates to a filter belt offset detection mechanism. The trigger flap (200) can move towards or away from the mounting piece (100); The trigger flap (200) has a trigger part (210) and a detection part (220); The mounting piece (100) is used for being connected with a cabinet and is provided with a sensor (300); a signal input end of the sensor (300) faces the detection part (220); The end surface of the detection part (220) corresponding to the signal input end of the sensor (300) is a detection surface (221), and the detection surface (221) has a height difference or a width difference from the direction of the filter belt (600) to the mounting piece (100); During the offset of the filter belt (600), the filter belt (600) abuts against the trigger part (210) and drives the trigger flap (200) to move towards the mounting piece (100); during the movement of the trigger flap (200) towards the mounting piece (100), the distance between the detection surface (221) and the sensor (300) is acquired to detect the offset of the filter belt (600).

2. A filter band offset detection mechanism according to claim 1, wherein The trigger flap (200) is connected with the mounting piece (100) through an elastic piece (400).

3. A filter band offset detection mechanism according to claim 1, wherein The mounting piece (100) has a mounting groove (122); the sensor (300) is clamped in the mounting groove (122).

4. A filter band offset detection mechanism according to claim 3, wherein The mounting groove (122) extends along the length direction of the filter belt (600), and the sensor (300) can move along the extension direction of the filter belt (600).

5. A filter band offset detection mechanism according to claim 4, wherein The mounting piece (100) is provided with a protruding part (120) on the side facing the trigger flap (200), and the protruding part (120) has a parallel section (121) parallel to the mounting piece (100); The mounting groove (122) is the space between the parallel section (121) and the mounting piece (100).

6. The filter band offset detection mechanism of claim 1, wherein The mounting piece (100) is further provided with a fixing groove (110); a bolt passes through the fixing groove (110) and is connected with the cabinet.

7. A filter band offset detection mechanism according to claim 6, wherein The fixing groove (110) extends along the length direction of the filter belt (600); when the mounting piece (100) is connected with the cabinet, the mounting piece (100) can move along the extension direction of the fixing groove (110).

8. The filter band offset detection mechanism of claim 1, wherein, The filter belt offset detection mechanism further comprises a filter belt roller (500), and the filter belt roller (500) is rotationally connected with the mounting piece (100) through a rotating shaft. The filter belt (600) is sleeved on the filter belt roller (500).

9. A filter band offset detection mechanism according to claim 4, wherein The extension direction of the mounting groove (122) is perpendicular to the movement path of the trigger flap (200).

10. A belt filter apparatus, characterized by The application further relates to a filter belt offset detection mechanism. The application relates to a filter belt offset detection mechanism.

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