A suction and discharge vehicle for cleaning filter bags under negative pressure

Abstract

The present invention relates to the technical field of filter bag cleaning, and specifically to a suction and discharge vehicle for cleaning filter bags under negative pressure, including a mobile vehicle. On the top surface of the carrier plate of the mobile vehicle, two brackets are fixedly connected. A negative pressure barrel is arranged between the two brackets. A mesh cylinder is fixed at the bottom of the U-shaped frame. Inside the mesh cylinder, a plurality of partition plates are fixedly connected at equal intervals. The plurality of partition plates divide the internal space of the mesh cylinder into a plurality of columnar chambers. Inside each columnar chamber, a sleeve is fixedly connected. Between the plurality of sleeves and the U-shaped frame, an air supply pipe member is rotatably connected. In the present invention, by using partition plates to divide the internal space of the mesh cylinder into a plurality of different columnar chambers, each columnar chamber corresponding to a region outside a filter bag, and by rotating the air inlet cylinder, the airflow inside it can be conveyed to different columnar chambers, so that the airflow can sequentially blow to different regions outside the filter bag, facilitating the uniform and comprehensive cleaning of the dust on the filter bag.

Description

Technical Field

[0001] The invention relates to the technical field of filter bag cleaning, in particular to a suction and exhaust vehicle for cleaning filter bags under negative pressure. Background Art

[0002] During the long-term dust removal process, the amount of dust accumulated on the outer surface of the filter bag on the filter bag dust collector will increase with the extension of the use time, which will cause the filter holes of the filter bag to be gradually blocked. Therefore, it is necessary to regularly clean the dust on the surface of the filter bag. At present, pulse spraying is commonly used to clean the dust. The specific method is to spray high-pressure air at the open end of the filter bag to make the filter bag expand and shake, so that the dust on the outside of the filter bag can be separated from the filter bag.

[0003] When using pulse jet to clean the filter bag, since the top of the filter bag is always in an open state, it is easy for airflow to leak from the open mouth of the filter bag, causing the bag mouth to expand and shake, and then it is easy for the bottom of the filter bag to be cleaned better than the top of the filter bag. The uneven cleaning phenomenon, in addition, it is not easy to clean the dust directly from the outside of the filter bag using pulse jet. When there is a lot of dust accumulated on the outside of the filter bag, it will take a long time to perform pulse jet dust removal, which is not conducive to further improving the efficiency of filter bag cleaning. Summary of the invention

[0004] The purpose of the present invention is to provide a suction and exhaust vehicle for cleaning filter bags under negative pressure to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A suction and discharge vehicle for cleaning filter bags under negative pressure, comprising:

[0007] A mobile vehicle, wherein two brackets are fixed on a carrier plate of the mobile vehicle;

[0008] A negative pressure barrel is arranged between the two brackets, and the negative pressure barrel is composed of two barrel shells spliced ​​together;

[0009] A 匚-shaped frame is slidably connected to the top of the negative pressure barrel, and clamps capable of clamping and fixing the filter bag are fixed at both ends of the 匚-shaped frame;

[0010] A mesh cylinder is fixed at the bottom of the 匚-shaped frame, and a filter bag is sleeved on the outside of the mesh cylinder. A plurality of partitions are fixed inside the mesh cylinder, and the plurality of partitions divide the internal space of the mesh cylinder into a plurality of columnar chambers, and a sleeve is fixed inside the columnar chamber;

[0011] An air supply pipe fitting is rotatably connected below the yoke, and the air supply pipe fitting comprises an air inlet tube rotatably inserted between a plurality of sleeves;

[0012] Two scraping mechanisms are respectively installed inside the barrel shell at corresponding positions and are used to scrape and clean the dust on the outer side of the filter bag. The scraping mechanism includes a rubber sheet, and a connecting shaft is fixed to the inner side of the rubber sheet. One end of the connecting shaft is fixed with a plurality of semi-circular brushes.

[0013] Furthermore: The rubber sheet is embedded and fixed with the barrel shell, and a hopper is fixedly connected and communicated at the bottom of one of the barrel shells.

[0014] Furthermore: The fixture includes an electric push rod fixed to the U-shaped frame, and an arc-shaped block is fixed to the output end of the electric push rod.

[0015] Furthermore: A first slot is opened on the outer side of the sleeve, and a plurality of second slots are opened on the outer side of the air inlet cylinder.

[0016] Furthermore: An air inlet pipe is fixedly connected and communicated at the top of the air inlet cylinder, and the air inlet pipe is rotatably connected with the U-shaped frame.

[0017] Furthermore: A second motor capable of driving the air inlet pipe to rotate is fixed to the bottom of the U-shaped frame, and two cylinders capable of driving it to move up and down are arranged on the outer side of the U-shaped frame.

[0018] Furthermore: The bracket includes two columns both fixed to the moving vehicle-mounted plate. A lead screw is rotatably connected between the two columns, and a first motor capable of driving the lead screw to rotate is fixed to the top of one of the columns.

[0019] Furthermore: Connecting seats are fixed to both sides of the barrel shell. The two connecting seats on one barrel shell are both screwed with the lead screw, and the two connecting seats on the other barrel shell are respectively fixed to the corresponding columns, and the lead screw passes through the connecting seat.

[0020] Furthermore: The scraping mechanism further includes a cross beam fixedly connected to the connecting shaft. A plurality of connecting rods are fixedly arranged at equal intervals on the outer side of the cross beam, and the connecting rods are fixedly connected to the semi-circular brushes at corresponding positions.

[0021] Furthermore: The semi-circular brush includes a semi-circular block fixedly connected to the connecting rod. A brush body is fixed to the inner side of the semi-circular block, and limiting shafts fixedly connected to the barrel shell are slidably inserted at both ends of the cross beam.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By fixing multiple partitions inside the mesh cylinder, the internal space of the mesh cylinder is divided into multiple different columnar chambers. A sleeve is fixed inside each columnar chamber, and a first slot is opened on the outer side of the sleeve. A blast pipe is rotatably inserted into the multiple sleeves. The filter bag is sleeved outside the mesh cylinder. The air pump sucks the air inside the negative pressure barrel to make the filter bag in a negative pressure environment. Open the air inlet pipe to make the air flow through the air inlet pipe and be transported into the blast pipe. In the initial state, the second slot at the bottom of the blast pipe communicates with the first slot of the lowermost sleeve of the mesh cylinder, facilitating the concentrated discharge of the air flow from the lowermost columnar chamber of the mesh cylinder, thereby realizing the concentrated purging of the area of the outer side of the mesh bag corresponding to the lowermost columnar chamber of the mesh cylinder;

[0024] By staggeredly opening the first slots on adjacent sleeves, the included angle between two adjacent first slots is 45 degrees. The multiple second slots are evenly opened along the length direction of the blast pipe, and each second slot is at the same horizontal height as the corresponding first slot. Thus, it is realized that every time the blast pipe rotates 45 degrees, the second slots at different positions will be aligned and communicated with the corresponding first slots. By rotating the blast pipe multiple times, the air flow inside the blast pipe can be blown into different columnar chambers, facilitating the sequential purging of different areas on the outer side of the filter bag by the air flow inside the blast pipe, preventing the uneven cleaning phenomenon that the cleaning effect below the filter bag is better than that above the filter bag, and the air flow can be targeted to blow to this area according to the dust amount in different areas on the outer side of the filter bag, extending the purging time of this area, which is beneficial to improving the cleaning efficiency of the filter bag.

[0025] 2. The negative pressure barrel is sucked into a negative pressure state through the air pump. Under the action of the external atmospheric pressure, the rubber sheet will move towards the inside of the negative pressure barrel. The rubber sheet drives the connecting shaft and the cross beam to move towards the inside of the negative pressure barrel, so that multiple semi-circular brushes on the outer side of the cross beam abut against the outer side of the filter bag. The output end of the air cylinder drives the U-shaped frame to move upward. The U-shaped frame drives the mesh cylinder and the filter bag as a whole to move upward through the connecting column, so that the semi-circular brushes at different positions scrape the dust on the outer side of the filter bag. Two adjacent semi-circular brushes form a circular brush surrounding the outer side of the filter bag, so that the circular brush can comprehensively clean the dust in different areas on the outer side of the filter bag during the upward movement of the filter bag, further improving the cleaning efficiency of the filter bag;

[0026] As the negative pressure intensity inside the negative pressure barrel increases, the extrusion force of the semi-circular brush against the filter bag becomes greater, realizing the enhancement of the scraping intensity, facilitating the cleaning of the filter bag with more dust. After the output end of the air cylinder drives the filter bag to move upward, the output end of the air cylinder can also drive the filter bag to move downward through the U-shaped frame, so as to realize the reciprocating wiping of the filter bag by the semi-circular brush, which is beneficial to improving the cleaning effect. During the process of scraping the dust on the outer side of the filter bag, the negative pressure barrel is in a negative pressure state, effectively preventing the occurrence of dust flying. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the schematic diagram of the overall structure of the present invention Figure 1 ;

[0028] Figure 2 is the schematic diagram of the overall structure of the present invention Figure 2 ;

[0029] Figure 3 is the schematic diagram of the unfolded structure of two barrel shells in the present invention;

[0030] Figure 4 is the schematic diagram of the barrel shell and the scraping mechanism in the present invention;

[0031] Figure 5 is the schematic diagram of the internal structure of the barrel shell in the present invention;

[0032] Figure 6 is the schematic diagram of the internal structure of the mesh cylinder in the present invention;

[0033] Figure 7 is the schematic diagram of the split three-dimensional state structure of the mesh cylinder and the air inlet cylinder in the present invention;

[0034] Figure 8 is the schematic diagram of multiple sleeve pipes in the present invention.

[0035] In the figure: 100, mobile vehicle; 110, bracket; 111, support pillar; 112, lead screw; 113, motor 1; 200, barrel shell; 210, exhaust pipe; 220, hopper; 230, connecting seat; 300, U-shaped frame; 310, fixture; 311, electric push rod; 312, arc-shaped block; 320, air cylinder; 330, connecting column; 340, motor 2; 400, mesh cylinder; 410, partition board; 420, sleeve pipe; 421, slot hole 1; 500, air supply pipe component; 510, air inlet cylinder; 511, slot hole 2; 520, air inlet pipe; 600, scraping mechanism; 610, rubber sheet; 620, connecting shaft; 630, cross beam; 640, semi-circular brush; 650, limit shaft. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Example 1, please refer to Figure 1 - Figure 8, in the embodiment of the present invention, a suction and discharge vehicle for cleaning filter bags under negative pressure includes a mobile vehicle 100. On the top surface of the carrier plate of the mobile vehicle 100, two brackets 110 are fixedly connected. A negative pressure barrel is arranged between the two brackets 110. The negative pressure barrel is composed of two barrel shells 200 movably spliced. One barrel shell 200 is rotationally driven between the two brackets 110. A U-shaped frame 300 is slidably connected to the top of the negative pressure barrel. Clamps 310 are fixed at both ends of the U-shaped frame 300. A mesh cylinder 400 is fixed to the bottom of the U-shaped frame 300. A plurality of partition plates 410 are fixedly connected at equal intervals inside the mesh cylinder 400. The internal space of the mesh cylinder 400 is divided into a plurality of columnar chambers by the plurality of partition plates 410. A sleeve 420 is fixedly connected inside each columnar chamber. A ventilation pipe member 500 is rotatably connected between the plurality of sleeves 420 and the U-shaped frame 300. The ventilation pipe member 500 includes an air inlet cylinder 510 rotatably inserted between the plurality of sleeves 420.

[0038] Specifically, by dividing the internal space of the mesh cylinder 400 into a plurality of different columnar chambers by the partition plates 410, each columnar chamber corresponds to an area outside the filter bag. By rotating the air inlet cylinder 510, the airflow inside it can be conveyed to different columnar chambers, so that the airflow can blow the outside of the filter bag in different areas in sequence, facilitating the uniform and all-round cleaning of the dust on the filter bag. Or the air inlet cylinder 510 can be rotated and stopped at a certain position, facilitating the concentrated targeted blowing of the airflow in the air inlet cylinder 510 to the area with a large amount of dust, realizing the efficient and selective cleaning of the dust outside the filter bag.

[0039] As Figure 2 shown, in this embodiment, the rubber sheet 610 is fixedly embedded with the barrel shell 200. When the negative pressure barrel is under negative pressure, the rubber sheet 610 can move into the negative pressure barrel, realizing the operation of driving the scraping mechanism 600. A hopper 220 is fixedly connected and communicated at the bottom of one barrel shell 200. The hopper 220 can hold the dust scraped and fallen. A sealing cover is rotatably installed below the hopper 220. Opening the sealing cover facilitates cleaning the dust and impurities inside the hopper 220.

[0040] In this embodiment, a transparent observation window can be opened on the barrel shell 200 to facilitate the user to observe the cleaning degree of the outside dust. An air extraction pipe 210 is fixedly connected and communicated on the outside of one barrel shell 200. The air extraction pipe 210 is connected to the pipeline for sucking air from the outside, and can suck the air inside the negative pressure barrel to make the negative pressure barrel in a negative pressure state. Sealing gaskets can be fixedly embedded on the side of the contact surface where the two barrel shells 200 are spliced with each other, which is beneficial to improving the sealing performance of the negative pressure barrel.

[0041] As Figure 1 shown, in this embodiment, the filter bag cleaning device of the present application is integrally installed and fixed on the mobile vehicle 100, and the mobile vehicle can conveniently move the filter bag cleaning device to the filter bag dust collector station for cleaning dust work.

[0042] AsFigure 5 As shown in Figure 5 , in this embodiment, the fixture 310 includes an electric push rod 311 fixed to the U-shaped frame 300. An arc-shaped block 312 is fixed to the output end of the electric push rod 311. After the filter bag is sleeved outside the mesh cylinder 400, the output end of the electric push rod 311 extends to clamp the two arc-shaped blocks 312 at the mouth position of the filter bag, so as to clamp and fix the filter bag on the mesh cylinder 400 for cleaning and standby.

[0043] As Figure 7 and Figure 8 As shown in Figure 8 , in this embodiment, a first slot 421 is formed on the outer side of the sleeve 420. The included angle between the first slots 421 on two adjacent sleeves 420 is 45 degrees. A plurality of second slots 511 are formed on the outer side of the air inlet cylinder 510 along its length direction. The plurality of second slots 511 are respectively at the same height as the first slots 421 at the corresponding positions.

[0044] In this embodiment, in the initial state, the lowermost second slot 511 of the air inlet cylinder 510 is communicated with the lowermost first slot 421 of the mesh cylinder 400. Then, when the air inlet cylinder 510 rotates 45 degrees each time, the second slots 511 at different positions from bottom to top are sequentially communicated with the first slots 421 at the same height, so that the air inlet cylinder 510 can send air to the outer sides of different sleeves 420.

[0045] As Figure 5 As shown in Figure 5 , in this embodiment, an air inlet pipe 520 is connected and fixed to the top of the air inlet cylinder 510. The air inlet pipe 520 is rotatably connected to the U-shaped frame 300. A second motor 340 capable of driving the air inlet pipe 520 to rotate is fixed to the bottom of the U-shaped frame 300. Gears are sleeved and fixed on the output end of the second motor 340 and the outer side of the air inlet pipe 520 respectively, and the two gears are in meshing transmission.

[0046] In this embodiment, the air inlet pipe 520 can also be connected to an external blowing device through a hose, so that the air inlet pipe 520 can send air to the negative pressure barrel even when the air extraction pipe 210 is opened, realizing the use of the flowing air to blow the filter bag. When it is necessary to rotate the air inlet cylinder 510 to change the air supply position, the second motor 340 drives the two gears to rotate, so that the air inlet pipe 520 rotates, and the air inlet pipe 520 then drives the air inlet cylinder 510 to rotate, realizing that the air inlet cylinder 510 blows air to different areas outside the filter bag.

[0047] As Figure 2 As shown in Figure 2 , in this embodiment, two cylinders 320 capable of driving the U-shaped frame 300 to move up and down are arranged on the outer side of the U-shaped frame 300. The bottom of the cylinder 320 is fixedly connected to the barrel shell 200. A fixing rod is fixed to the output end of the cylinder 320, and the fixing rod is fixedly connected to the U-shaped frame 300. Thus, by extending or shortening the output end of the cylinder 320, the U-shaped frame 300 can move up and down on the negative pressure barrel.

[0048] In this embodiment, referring to the specificationFigure 5 At the bottom of the C-shaped frame 300, two connecting columns 330 are fixed. The connecting columns 330 are fixedly connected to the top surface of the mesh cylinder 400, so that the mesh cylinder 400 can move its position together with the C-shaped frame 300.

[0049] As Figure 2 and Figure 3 shown in FIGS.

[0050] In this embodiment, when it is necessary to put the filter bag outside the mesh cylinder 400, the first motor 113 drives the lead screw 112 to rotate, so that one barrel shell 200 moves in a direction away from the first motor 113, so as to create a certain space between the two barrel shells 200. The user can put the filter bag on the outside of the mesh cylinder 400 through the gap between the two barrel shells 200. Then, the first motor 113 drives the lead screw 112 to rotate in the reverse direction, and the moved barrel shell 200 moves in the reverse direction, and finally the two barrel shells 200 move and are spliced into a negative pressure barrel.

[0051] As Figure 1 and Figure 2 shown in FIGS.

[0052] Embodiment 2: On the basis of Embodiment 1, while using air flow to wash the filter bag, the dust on the outer side of the filter bag can be scraped, further improving the efficiency of filter bag cleaning.

[0053] As Figure 3 and Figure 4 shown in FIGS.

[0054] Specifically, the air inside the negative pressure barrel is sucked through the suction pipe 210 to make the negative pressure barrel in a negative pressure state. As a result, the rubber sheet 610 moves into the negative pressure barrel under the action of the external air pressure. The connecting shaft 620 on the rubber sheet 610 drives a plurality of semi-circular brushes 640 on the cross beam 630 to abut against the outer side of the filter bag. Then, the cylinder 320 is used to drive the U-shaped frame 300 to move the filter bag up and down, so as to realize that a plurality of semi-circular brushes 640 directly scrape and clean the dust on the filter bag on the outer side of the filter bag.

[0055] As Figure 4 shown, in this embodiment, a plurality of connecting rods are fixedly arranged at equal intervals on the outer side of the cross beam 630. The semi-circular brush 640 includes a semi-circular block fixedly connected to the connecting rod, and a brush body is fixedly arranged on the inner side of the semi-circular block. Thus, two semi-circular brushes 640 at the same position height can form a circular brush and be arranged on the outer side of the filter bag. A plurality of semi-circular brushes 640 will form a plurality of circular brushes and be arranged at different positions on the outer side of the filter bag. As the filter bag moves up and down, the circular brushes at different positions can clean the dust on the outer side of the filter bag in all directions.

[0056] As Figure 4 shown, in this embodiment, limiting shafts 650 fixedly connected to the barrel housing 200 are slidably inserted at both ends of the cross beam 630. Thus, when the cross beam 630 moves along with the connecting shaft 620, it will linearly move along the limiting shafts 650, which is beneficial for a plurality of semi-circular brushes 640 to abut flatly against the outer side of the filter bag.

[0057] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0058] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suction and discharge vehicle for cleaning filter bags under negative pressure, characterized in that, Including: A mobile vehicle (100), on which two brackets (110) are fixed to the carrier plate of the mobile vehicle (100); A negative pressure barrel, arranged between the two brackets (110), and the negative pressure barrel is composed of two barrel shells (200) spliced together; A U-shaped frame (300), slidably connected to the top of the negative pressure barrel, and clamps (310) capable of clamping and fixing filter bags are fixed to both ends of the U-shaped frame (300); A mesh cylinder (400), fixed to the bottom of the U-shaped frame (300), the filter bag is sleeved on the outside of the mesh cylinder (400), a plurality of partition plates (410) are fixed inside the mesh cylinder (400), and the internal space of the mesh cylinder (400) is divided into a plurality of columnar chambers by the plurality of partition plates (410), a sleeve (420) is fixed inside the columnar chamber, and a first slot hole (421) is provided on the outside of the sleeve (420); An air supply pipe member (500), rotatably connected below the U-shaped frame (300), the air supply pipe member (500) includes an air inlet cylinder (510) rotatably inserted between a plurality of sleeves (420), a plurality of second slot holes (511) are provided on the outside of the air inlet cylinder (510), an air inlet pipe (520) is fixedly connected and communicated to the top of the air inlet cylinder (510), and the air inlet pipe (520) is rotatably connected to the U-shaped frame (300); Two scraping mechanisms (600), respectively installed inside the corresponding barrel shells (200) for scraping and cleaning the dust on the outside of the filter bag, the scraping mechanism (600) includes a rubber sheet (610), a connecting shaft (620) is fixed to the inner side of the rubber sheet (610), and a plurality of semi-circular hair brushes (640) are fixed to one end of the connecting shaft (620).

2. The suction and discharge vehicle for cleaning the filter bag under negative pressure according to claim 1, wherein, The rubber sheet (610) is fixedly embedded with the barrel shell (200), and a hopper (220) is fixedly connected and communicated to the bottom of one of the barrel shells (200).

3. The suction and discharge vehicle for negative pressure cleaning of filter bags according to claim 1, wherein, The clamp (310) includes an electric push rod (311) fixed to the U-shaped frame (300), and an arc-shaped block (312) is fixed to the output end of the electric push rod (311).

4. The suction and discharge vehicle for cleaning filter bags under negative pressure according to claim 1, wherein, A second motor (340) capable of driving the air inlet pipe (520) to rotate is fixed to the bottom of the U-shaped frame (300), and two air cylinders (320) capable of driving it to move up and down are arranged on the outside of the U-shaped frame (300).

5. The suction and discharge vehicle for cleaning the filter bag under negative pressure according to claim 1, wherein, The bracket (110) includes two columns (111) both fixed to the carrier plate of the mobile vehicle (100), a lead screw (112) is rotatably connected between the two columns (111), and a first motor (113) capable of driving the lead screw (112) to rotate is fixed to the top of one of the columns (111).

6. The suction and discharge vehicle for cleaning the filter bag under negative pressure according to claim 5, characterized in that, Connection seats (230) are fixed to both sides of the barrel shell (200), the two connection seats (230) on one barrel shell (200) are both screwed to the lead screw (112), the two connection seats (230) on the other barrel shell (200) are respectively fixedly connected to the corresponding columns (111), and the lead screw (112) passes through the connection seat (230).

7. The suction and discharge vehicle for cleaning the filter bag under negative pressure according to claim 1, characterized in that, The scraping mechanism (600) further includes a cross beam (630) fixedly connected to the connecting shaft (620). A plurality of connecting rods are fixedly arranged at equal intervals on the outer side of the cross beam (630), and the connecting rods are fixedly connected to the corresponding semi-circular brushes (640).

8. The suction and discharge vehicle for negative pressure cleaning of filter bags according to claim 7, characterized in that, The semi-circular brush (640) includes a semi-circular block fixedly connected to the connecting rod. A brush body is fixedly arranged on the inner side of the semi-circular block. Limiting shafts (650) fixedly connected to the barrel shell (200) are slidably inserted at both ends of the cross beam (630).

Images