Light substance filter valve for construction waste dust removal pipeline

Abstract

The utility model relates to a construction waste dedusting pipeline light substance filter valve, which comprises a support valve body and a glasses valve core, the support valve body comprises a left valve body and a right valve body which are arranged at an interval left and right, the glasses valve core is embedded between the left valve body and the right valve body, and the left end and the right end of the glasses valve core are respectively connected with the left valve body and the right valve body in a sealing way; the glasses valve element comprises a cage grate driving device and at least two filtering cage grates. The cage grate driving device is used for driving the filtering cage grates to be alternately connected with the supporting valve body. The left valve body and the right valve body are fixedly connected through a supporting rod, the axis of the supporting rod is parallel to the axis of the supporting valve body, and the distance between the axis of the supporting rod and the axis of the supporting valve body meets the requirement that the filter cage grate and the supporting valve body are allowed to be in butt joint and disengaged. According to the utility model, the automatic separation of light substances in the construction waste dust removal pipeline and the automatic replacement of the filtering device are realized, the workload of fault cleaning and maintenance is reduced, the normal operation of a production line is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model designs the technical field of construction waste treatment equipment, and particularly relates to a light material filter valve for a construction waste dust removal pipeline. Background Art

[0002] In the current construction waste disposal process, during the dust removal process of the air separation equipment, some lighter materials such as wood chips, plastic films, paper pieces, etc. will enter the bag dust collector along the dust removal pipe with the dust-laden airflow. After being collected by the bag dust collector, they will be discharged through the unloading screw conveyor at the bottom of the bag dust collector and the matching external star-shaped ash unloading valve, causing the impurity content of the dust ash to be too high and the purity to decrease. Moreover, when the content of light materials is high, the light materials will be stuck in the gap between the spiral blades and the outer shell of the screw conveyor, causing the spiral blades to fall off the main shaft and causing equipment failure, or the light materials will be stuck in the gap between the blades and the shell of the star-shaped ash unloading valve, causing the blades to stop rotating and the pipeline to be blocked.

[0003] In order to solve the aforementioned problems, Chinese patent CN220160856U provides a dust collector, including a dust collecting body, which has a dust collecting chamber inside, and is provided with an air inlet and an air outlet connected to the dust collecting chamber; a feed pipe, which has a feeding channel inside, and a feed port and a discharge port connected to the feeding channel are formed at both ends, respectively, the discharge port is connected to the air inlet, and the feed port is used to supply materials to enter the feeding channel; a filter screen is arranged inside the feed pipe and located between the feed port and the discharge port, the filter screen blocks the feeding channel, and the filter screen has a plurality of mesh holes arranged at intervals, and the mesh holes penetrate along the flow direction of the material. In the aforementioned prior art, during the process of conveying the material to the dust collecting body through the feed pipe, the light substances mixed in the dust are connected by the filter screen, and the dust can continue to be conveyed through the mesh holes of the filter screen, thereby realizing the separation of light substances in the material. Since the light substances are blocked, the risk of the internal structure of the dust collector being worn by the light substances, blockage and equipment failure is reduced. However, after a period of use, the mesh of the filter screen of the dust collector in the prior art is easily clogged, and it needs to be disassembled and cleaned regularly, which not only consumes manpower but also affects the production progress. Utility Model Content

[0004] The utility model aims to provide a light material filter valve for a construction waste dust removal pipeline to solve the deficiencies in the prior art. The technical problem to be solved by the utility model is achieved through the following technical solutions.

[0005] A light material filter valve for a dust removal pipeline of construction waste, comprising a supporting valve body and a glasses valve core, the supporting valve body comprising a left valve body and a right valve body spaced apart on the left and right sides, the glasses valve core being embedded between the left valve body and the right valve body and having its left and right ends respectively sealedly connected to the left valve body and the right valve body, the glasses valve core comprising a cage grate driving device and at least two filter cage grates, the cage grate driving device being used to drive the filter cage grates to be alternately connected to the supporting valve body; the left valve body and the right valve body are fixedly connected by a supporting rod, the axis of the supporting rod is parallel to the axis of the supporting valve body, and the distance between the axis of the supporting rod and the axis of the supporting valve body is sufficient to allow the filter cage grate to be docked and detached from the supporting valve body.

[0006] Preferably, the filter cage comprises a cylindrical cage, and a filter plate with holes is arranged in the cage.

[0007] Preferably, the perforated filter plate is arranged in the cage near the right end.

[0008] Preferably, a left valve body flange is provided at the left end of the left valve body, and a right valve body flange is provided at the right end of the right valve body, and the outer edges of the left valve body flange and the right valve body flange are evenly provided with a number of connecting seats corresponding to each other, and the left and right ends of the support rod are fixedly connected to the connecting seat on the left valve body flange and the connecting seat on the right valve body flange respectively.

[0009] Preferably, the eyeglass valve core includes a connecting plate, two filter cage grates and a cage grate driving device, the two filter cage grates are respectively arranged at the two ends of the connecting plate, and the cage grate driving device is connected to the connecting plate, and is used to drive the connecting plate to swing, thereby making the two filter cage grates on the connecting plate swing, and further making the two filter cage grates alternately sealed and connected to the supporting valve body.

[0010] Preferably, a shaft sleeve is provided in the middle of the connecting plate, the axis of the shaft sleeve is parallel to the axis of the filter cage, a gear I is fixedly installed on the outside of the shaft sleeve, the cage drive device includes a servo motor installed on the support rod below the support valve body, a gear II is installed on the end of the output shaft of the servo motor, and the gear I and the gear II are meshed with each other.

[0011] Preferably, the axis of the shaft sleeve does not pass through the axis line connecting the two filter cage grates, and the distance between the shaft sleeve and the filter cage grates is equal to the distance between the axis of the support valve body and the axis of the support rod.

[0012] Preferably, the number of the support rods is three.

[0013] Preferably, pneumatic sealing rings are respectively provided at the left and right ends of the filter cage, and the right end of the left valve body and the left end of the right valve body are both provided with accommodating grooves, the accommodating grooves and the pneumatic sealing rings match each other, and the pneumatic sealing rings are connected to the air source device, and the pneumatic sealing rings expand after being inflated by the air source device and shrink after being exhausted.

[0014] Preferably, grooves for accommodating the pneumatic sealing ring are provided on the left and right sides of the filter cage, and the pneumatic sealing ring is fixedly installed in the grooves.

[0015] In the utility model, when working, the cage grate driving device drives the glasses valve core to move so that one of the filter cage grates is connected to the supporting valve body, and the sediment-containing gas carrying light substances enters the interior of the filter device from the dust removal pipe on the left. When the sediment-containing gas passes through the filter cage grate, the light substances are intercepted by the filter cage grate and the sediment-containing gas passes through the dust removal pipe on the right normally, and then enters the bag dust collector. When the light substances intercepted by the filter cage grate gradually increase, the pressure difference on both sides of the filter cage grate increases, that is, the pressure difference between the dust removal pipe for air inlet and the dust removal pipe for air outlet becomes larger. When the pressure detection device detects that the pressure difference in the two dust removal pipes reaches the set value, the control system controls the cage grate driving device to drive the glasses valve core to move, so that the filter cage grate is separated from the supporting valve body, and the other clean filter cage grate is connected to the supporting valve body. During the movement of the filter cage detached from the supporting valve body, a part of the light matter falls under the action of gravity, and the control system controls the cleaning device to clean the filter cage with light matter accumulated, so that the other part of the light matter that cannot slide off is separated from the filter cage, thus completing the cleaning of the filter cage. When the filter cage connected to the supporting valve body is full of light matter again, the control system cage driving device and the cleaning device repeat the above actions, and the cycle is repeated to achieve the automatic separation of light matter and the automatic cleaning of the filter device.

[0016] The utility model provides a light material filter valve for a construction waste dust removal pipeline, which realizes the automatic separation of light materials in the construction waste dust removal pipeline and the automatic replacement of the filtering device, ensures the purity of the dust removed by the bag dust collector, prevents the internal screw conveyor and the star-shaped ash discharge valve of the bag dust collector from getting stuck, reduces the workload of fault cleaning and maintenance, ensures the normal operation of the production line, improves production efficiency, and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model from another angle;

[0019] Figure 3 This is a schematic diagram of the structure of the supporting valve body in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the filter cage grate in the utility model;

[0021] Figure 5 This is a structural schematic diagram of the eyeglass valve core in the utility model;

[0022] The reference numerals in the accompanying drawings are: 1. dust removal duct, 11. left dust removal duct, 111. left duct flange, 12. right dust removal duct, 121. right duct flange, 2. pressure detection device, 31. duct bracket, 32. support seat, 41. left valve body flange, 42. right valve body flange, 43. support rod, 44. connecting seat, 5. glasses valve core, 51. pneumatic sealing ring, 52. shaft sleeve, 53. filter cage, 54. connecting plate, 55. air hole, 56. servo motor, 61. horn air outlet, 62. electric stop valve, 63. compressed air duct. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In the present invention, the front, rear, left and right directions are Figure 1 The front, back, left and right directions are taken as the reference.

[0025] Embodiment 1:

[0026] Reference Figure 1 and Figure 2 As shown, a light material filter valve for dust removal pipeline of construction waste, the improvement of which is that it comprises a dust removal pipeline 1, a bottom support frame, a support valve body, a glasses valve core 5, a cleaning device and a control system, the dust removal pipeline 1 is installed above the bottom support frame and arranged at the left and right ends of the support valve body, and is interconnected with the support valve body, and the two dust removal pipelines 1 are respectively provided with pressure detection devices 2; a spacer is provided in the middle of the support valve body, the glasses valve core 5 is embedded in the spacer of the support valve body and the left and right ends are respectively sealed and connected with the support valve body, the glasses valve core 5 comprises a cage grate driving device and at least two filter cage grates 53, the cage grate driving device is used to drive the filter cage grates 53 to be alternately connected to the support valve body; the cleaning device is installed on the bottom support frame, and is used to clean the filter cage grate 53 that is not connected to the support valve body; the control system is respectively connected to the cage grate driving device and the cleaning device, and is used to drive the cage grate driving device and the cleaning device to work.

[0027] In this embodiment, during operation, the cage driving device drives the glasses valve core 5 to move so that one of the filter cage grates 53 is connected to the supporting valve body. At this time, the dust removal pipe 1, the supporting valve body and the filter cage grate 53 are interconnected, the dust removal pipe 1 on the left is the air inlet pipe, and the dust removal pipe 1 on the right is the air outlet pipe. The sedimentary gas carrying light substances enters the interior of the filter device from the dust removal pipe 1 on the left. When the sedimentary gas passes through the filter cage grate 53, the light substances are intercepted by the filter cage grate 53 and the sedimentary gas passes through the dust removal pipe 1 on the right normally, and then enters the bag dust collector.

[0028] The filter cage 53 includes a cylindrical cage, and a perforated filter plate is arranged near the right end of the cage. The reason why the perforated filter plate is arranged near the right end of the cage is that such an arrangement will form a accommodating cavity on the left side of the perforated filter plate in the cylindrical cage for accommodating the intercepted light substances. When the light substances intercepted by the filter cage 53 gradually increase, the pressure difference on both sides of the filter cage 53 increases, that is, the pressure difference between the dust removal pipe 1 for air intake and the dust removal pipe 1 for air outlet becomes larger. When the pressure detection device 2 detects that the pressure difference in the two dust removal pipes 1 reaches the set value, the control system controls the cage driving device to drive the glasses valve core 5 to move, so that the filter cage 53 is separated from the support valve body, and another clean filter cage 53 is connected to the support valve body. During the movement of the filter cage 53 separated from the supporting valve body, a part of the light matter falls under the action of gravity, and the control system controls the cleaning device to clean the filter cage 53 with the light matter accumulated, so that the other part of the light matter that cannot slide off is separated from the filter cage 53, thus completing the cleaning of the filter cage 53. When the filter cage 53 connected to the supporting valve body is full of light matter again, the control system cage driving device and the cleaning device repeat the above actions, and the cycle is repeated to achieve the automatic separation of light matter and the automatic cleaning of the filter device.

[0029] The present embodiment provides a light material filter valve for a construction waste dust removal pipeline, which realizes the automated separation of light materials in the construction waste dust removal pipeline, the automated replacement and cleaning of the filter device, ensures the purity of dust removed by the bag collector, prevents the internal screw conveyor and the star-shaped ash discharge valve of the bag collector from getting stuck, reduces the workload of fault cleaning and maintenance, ensures the normal operation of the production line, improves production efficiency, and extends the service life of the equipment.

[0030] Furthermore, the bottom support frame includes a pipe bracket 31 and a support seat 32. The pipe bracket 31 is fixed on the ground. The support seat 32 is arranged at the upper end of the pipe bracket 31. The upper end surface of the support seat 32 is an arc shape matching the dust removal pipe 1. The dust removal pipe 1 is erected above the support seat 32 to ensure the stability of the dust removal pipe 1.

[0031] Further, see Figure 3As shown, the supporting valve body includes a left valve body and a right valve body which are spaced apart from each other, the spacing portion is arranged between the left valve body and the right valve body, the opposite ends of the left valve body and the right valve body are respectively fixedly connected to the dust removal duct 1, the left valve body and the right valve body are fixedly connected by a supporting rod 43, the axis of the supporting rod 43 is parallel to the axis of the supporting valve body, and the distance between the axis of the supporting rod 43 and the axis of the supporting valve body is sufficient to allow the filter cage 53 to be docked and detached from the supporting valve body.

[0032] Furthermore, the two dust removal ducts 1 are respectively a left dust removal duct 11 and a right dust removal duct 12, the right end of the left dust removal duct 11 is provided with a left duct flange 111, the left end of the right dust removal duct 12 is provided with a right duct flange 121, the left end portion of the left valve body is provided with a left valve body flange 41, and the right end portion of the right valve body is provided with a right valve body flange 42, the left duct flange 111 and the left valve body flange 41 are fixedly connected by bolts, and the right duct flange 121 and the right valve body flange 42 are fixedly connected by bolts; the outer edges of the left valve body flange 41 and the right valve body flange 42 are respectively and evenly provided with a plurality of connecting seats 44 at positions corresponding to each other, and the left and right ends of the support rod 43 are respectively fixedly connected with the connecting seats 44 on the left valve body flange 41 and the connecting seats 44 on the right valve body flange 42.

[0033] In this embodiment, the arrangement of the connecting seat 44 and the supporting rod 43 not only realizes the fixed connection between the left valve body and the right valve body, but also provides a moving space to allow the filter cage 53 to connect with and disconnect from the supporting valve body.

[0034] Embodiment 2:

[0035] Based on Example 1, Figure 4 and Figure 5 As shown, the glasses valve core 5 includes a connecting plate 54, two filter cage grates 53 and a cage grate driving device. The two filter cage grates 53 are respectively arranged at the two ends of the connecting plate 54. The cage grate driving device is connected to the connecting plate 54 and is used to drive the connecting plate 54 to swing, thereby making the two filter cage grates 53 on the connecting plate 54 swing, and then making the two filter cage grates 53 alternately sealed and connected to the supporting valve body.

[0036] Furthermore, a shaft sleeve 52 is provided in the middle of the connecting plate 54, the axis of the shaft sleeve 52 is parallel to the axis of the filter cage 53, a gear I is fixedly installed on the outside of the shaft sleeve 52, and the cage driving device includes a servo motor 56 installed on the support rod 43 below the support valve body, and a gear II is installed at the end of the output shaft of the servo motor 56, and the gear I and the gear II are meshed with each other.

[0037] In this embodiment, when replacing the filter cage grate 53 connected to the support valve body, the control system controls the output shaft of the servo motor 56 to rotate, driving the gear II to rotate, thereby driving the gear I to rotate, and then driving the connecting plate 54 to swing, so that the filter cage grate 53 originally connected to the support valve body is separated from the support valve body, and the connecting plate 54 is continuously swung to make another clean filter cage grate 53 complete the docking with the support valve body. The servo motor 56 can be controlled by the control system to rotate forward and reverse to achieve the forward and reverse swing of the connecting plate 54.

[0038] Furthermore, the axis of the shaft sleeve 52 does not pass through the axis line connecting the two filter cage grates 53 , and the distance between the shaft sleeve 52 and the filter cage grates 53 is equal to the distance between the axis of the support valve body and the axis of the support rod 43 .

[0039] In this embodiment, the axis of the sleeve 52 does not pass through the line connecting the axes of the two filter cage grates 53, that is, the line connecting the axes of the sleeve and the two filter cage grates 53 is in a triangle. This arrangement minimizes the swing angle of the connecting plate 54 when replacing the filter cage grates 53, making the replacement of the filter cage grates 53 faster and more energy-saving.

[0040] Furthermore, the number of the support rods 43 is three.

[0041] In this embodiment, the number of the support rods 43 is three, which can ensure the stability of the connection between the left valve body and the right valve body and provide more gaps to allow the filter cage 53 to pass smoothly when replaced.

[0042] Embodiment 3:

[0043] On the basis of Example 2, pneumatic sealing rings 51 are respectively provided at the left and right ends of the filter cage 53, and the right end of the left valve body and the left end of the right valve body are both provided with accommodating grooves, and the accommodating grooves and the pneumatic sealing rings 51 match each other, and the pneumatic sealing ring 51 is connected to the air source device, and the air source device and the pneumatic sealing ring 51 are respectively connected to the control system, and the pneumatic sealing ring 51 expands after being inflated by the air source device and contracts after being exhausted.

[0044] In this embodiment, grooves for accommodating the pneumatic sealing ring 51 are provided on the left and right sides of the filter cage 53, and the pneumatic sealing ring 51 is fixedly installed in the groove. The pneumatic sealing ring 51 is provided with an air hole 55, and the air hole 55 is connected with the air source device. When one of the filter cage grates 53 of the glasses valve core 5 needs to be rotated into the spacer of the supporting valve body, the control system controls the pneumatic sealing ring 51 to exhaust air, so that the filter cage grates 53 after shrinking and shrunken by the pneumatic sealing ring can easily enter the supporting valve body. After the filter cage grates 53 enters the spacer and is aligned with the supporting valve body, the control system controls the air source device 4 to inflate the pneumatic sealing ring 51 to expand the pneumatic sealing ring 51, thereby realizing the sealed connection between the filter cage grates 53 and the left valve body and the right valve body. Similarly, when the filter cage 53 of the eyeglass valve core 5 needs to be rotated out of the supporting valve body, the pneumatic sealing ring 51 is first controlled by the control device to exhaust air. After the pneumatic sealing ring 51 is completely deflated, the servo motor drives the connecting plate 54 to rotate to allow the filter cage 53 to be separated from the supporting valve body.

[0045] Embodiment 4:

[0046] Based on any of the above embodiments, Figure 1 As shown, the cleaning device includes at least one trumpet-shaped air outlet 61, the trumpet-shaped air outlet 61 and the filter cage grate 53 that is not connected to the supporting valve body match each other, the trumpet-shaped air outlet 61 is connected to the air compressor, and an electric stop valve 62 is arranged between the trumpet-shaped air outlet 61 and the air compressor.

[0047] Furthermore, there are two speaker air outlets 61, which are symmetrically arranged on the left and right sides below the supporting valve body.

[0048] In this embodiment, the compressed air pipeline 63 is fixed on the pipeline support 31. The compressed air pipeline 63 consists of a main air intake pipe and two branch pipelines. Each branch pipeline is provided with an electric stop valve 62 for opening and closing the corresponding compressed air channel. A trumpet blowing port 61 is provided at the end of each branch pipeline. The center of each trumpet blowing port 61 corresponds to the center of the filter cage grate 53 that reaches the end point after rotating out of the support valve body. When the filter cage grate 53 carrying light substances rotates out of the support valve body and aligns with the center of the trumpet blowing port 61, the filter cage grate 53 is quickly back-blown by the control system pneumatic electric stop valve 62 and air compressor to clean the light substances remaining in the filter cage grate 53, thereby achieving the purpose of cleaning the filter cage grate 53, so as to facilitate the re-entry into the support valve body to filter the light substances again. In this embodiment, the number of trumpet blowing ports 61 is two, so that the filter cage grate 53 can be cleaned by the cleaning device whether it is rotated out from the front side or the rear side of the support valve body.

[0049] It should be noted that the above detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present application belongs.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments described in the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products, or apparatuses.

[0053] For ease of description, spatially relative terms, such as "above", "above", "on the upper surface of", "above", etc., may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, such as rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0054] In the above detailed description, reference is made to the accompanying drawings, which form a part of this document. In the accompanying drawings, similar symbols typically identify similar components unless the context indicates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be used, and other changes may be made, without departing from the spirit or scope of the subject matter presented herein.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A light material filter valve for construction waste dust removal pipeline, characterized by: The invention comprises a supporting valve body and a glasses valve core (5), wherein the supporting valve body comprises a left valve body and a right valve body which are arranged at intervals on the left and right sides, wherein the glasses valve core (5) is embedded between the left valve body and the right valve body and the left and right ends are respectively sealedly connected to the left valve body and the right valve body, wherein the glasses valve core (5) comprises a cage grate driving device and at least two filter cage grates (53), wherein the cage grate driving device is used to drive the filter cage grates (53) to be alternately connected to the supporting valve body; the left valve body and the right valve body are fixedly connected by a supporting rod (43), wherein the axis of the supporting rod (43) is parallel to the axis of the supporting valve body, and the distance between the axis of the supporting rod (43) and the axis of the supporting valve body is sufficient to allow the filter cage grate (53) to be connected to and separated from the supporting valve body.

2. A light material filter valve for construction waste dust removal pipeline according to claim 1, characterized in that: The filter cage (53) comprises a cylindrical cage, in which a filter plate with holes is arranged.

3. A light material filter valve for construction waste dust removal pipeline according to claim 2, characterized in that: The perforated filter plate is arranged in the cage near the right end.

4. A light material filter valve for construction waste dust removal pipeline according to claim 1, characterized in that: The left end of the left valve body is provided with a left valve body flange (41), and the right end of the right valve body is provided with a right valve body flange (42). The outer edges of the left valve body flange (41) and the right valve body flange (42) are evenly provided with a plurality of connecting seats (44) at corresponding positions to each other, and the left and right ends of the support rod (43) are fixedly connected to the connecting seat (44) on the left valve body flange (41) and the connecting seat (44) on the right valve body flange (42), respectively.

5. The light material filter valve for construction waste dust removal pipeline according to claim 1 is characterized by: The eyeglass valve core (5) comprises a connecting plate (54), two filter cage grates (53) and a cage grate driving device. The two filter cage grates (53) are respectively arranged at the two ends of the connecting plate (54). The cage grate driving device is connected to the connecting plate (54) and is used to drive the connecting plate (54) to swing, thereby causing the two filter cage grates (53) on the connecting plate (54) to swing, thereby causing the two filter cage grates (53) to alternately be sealed and connected to the supporting valve body.

6. A light material filter valve for construction waste dust removal pipeline according to claim 5, characterized in that: A shaft sleeve (52) is provided in the middle of the connecting plate (54), the axis of the shaft sleeve (52) is parallel to the axis of the filter cage (53), a gear I is fixedly mounted on the outside of the shaft sleeve (52), the cage drive device includes a servo motor (56) mounted on a support rod (43) below the support valve body, a gear II is mounted on the end of the output shaft of the servo motor (56), and the gear I and the gear II are meshed with each other.

7. A light material filter valve for construction waste dust removal pipeline according to claim 6, characterized in that: The axis of the shaft sleeve (52) does not pass through the axis line connecting the two filter cage grates (53), and the distance between the shaft sleeve (52) and the filter cage grates (53) is equal to the distance between the axis of the support valve body and the axis of the support rod (43).

8. The light material filter valve for construction waste dust removal pipeline according to claim 1 is characterized by: The number of the support rods (43) is three.

9. The light material filter valve for construction waste dust removal pipeline according to claim 1, characterized in that: Pneumatic sealing rings (51) are respectively provided at the left and right ends of the filter cage (53); the right end of the left valve body and the left end of the right valve body are both provided with accommodating grooves, the accommodating grooves and the pneumatic sealing rings (51) are matched with each other, the pneumatic sealing rings (51) are connected to the air source device, and the pneumatic sealing rings (51) expand after being inflated by the air source device and contract after being exhausted.

10. A light material filter valve for construction waste dust removal pipeline according to claim 9, characterized in that: The left and right sides of the filter cage grate (53) are provided with grooves for accommodating the pneumatic sealing ring (51), and the pneumatic sealing ring (51) is fixedly installed in the grooves.

Images