CN105944461A - Horizontal flat cloth barrel dust catcher used for dedusting filtering of grain storage and conveying equipment - Google Patents

Abstract

The invention discloses a horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and conveying equipment, which comprises a casing, a dust inlet, a fan, a suction chamber, a dust removal chamber, a dust suction inlet and a gas blowback chamber. The gas blowback chamber includes a high-pressure gas blowing pipe, a high-pressure gas blowing hole, a high-pressure gas bag, an automatic drainage and sewage discharge device arranged at the lower end of the high-pressure gas bag, and a drainage and sewage discharge pipe connected to the automatic drainage and sewage discharge device. The invention is suitable for storage and transportation equipment in the grain industry. It is easy to install, has a large dust removal and filtration area of the multi-air channel cage skeleton, has a good dust removal stability effect, and has a high uniform efficiency of cleaning the attached dust. The flat cloth cylinder or dust removal bag is used for blowing and dust removal, the dust removal and filtration effect is good, there is no damage to the equipment, and the service life of the flat cloth cylinder or dust removal bag is extended.

Description

A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment

technical field

The invention belongs to the technical field of grain processing machinery and equipment, and relates to a grain dust collector, in particular to a horizontal flat cloth tube dust collector used for dust removal and filtration of grain storage and transportation equipment.

Background technique

Grain harvested by combine harvesting machinery will inevitably contain a large amount of impurities such as straw, so the grain

Before subsequent processing or storage, it is necessary to clean and remove dust and impurities from the grain. In the grain reserve, in order to facilitate the transportation, installation and movement of storage equipment, the portability, high efficiency and environmental protection of storage equipment have attracted more and more attention. Grain The storage cleaning and dust collector is an important equipment for cleaning and dust removal of grain in and out of the warehouse. In order to meet the processing area and processing air volume, people traditionally only increase the volume of the equipment to meet the needs. The existing dust removal structure of the dust collector is unreasonable. The cloth drum is not cleaned thoroughly, and there is a lot of dust accumulated, which affects the dust removal and filtration effect. The high-pressure air cleaning flat cloth drum shakes unevenly, and it cannot be cleaned quickly and effectively, and the water and oil contained in the high-pressure air after air compression are directly blown into the air. The flat cloth tube will cause damage to the equipment and affect the dust removal and filtration effect and the life of the equipment. In the grain storage warehouse, the warehouse-out machine is a kind of equipment that transports the grain in the grain warehouse to the outside of the warehouse. Since the grain is mixed with a large amount of dust and other impurities, the warehouse-out machine generally includes auger feeding during the actual working process. There are two main processes of feeding and conveyor belt feeding. These two processes will generate dust, pollute the surrounding environment, and endanger the health of workers. The grain storage and conveying equipment in the existing market, such as: the storage machine, does not have the dust removal function due to structural problems.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art, to provide a reasonable structure, effectively increased the filter area and processing air volume of the dust collector, convenient adjustment of the dust suction port, and high-voltage pulse cleaning for dust removal and filtration of grain storage and transportation equipment. Horizontal flat cloth drum dust collector.

In order to achieve the above object, the technical scheme that the present invention takes is as follows:

A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and conveying equipment, comprising a casing, a dust inlet arranged on the casing, a fan arranged on the casing, and a suction fan connected to the fan suction port of the fan. The air chamber, the dust removal chamber connected to the suction chamber on one side, the dust suction port arranged under the dust removal chamber, and the gas blowback chamber arranged on the other side of the dust removal chamber;

The gas blowback chamber includes a high-pressure gas blowing pipe, a high-pressure gas blowing hole arranged on the high-pressure gas blowing pipe and opposite to the dust removal chamber, a high-pressure gas bag connected with the high-pressure gas blowing pipe, and a high-pressure gas bag arranged at the lower end of the high-pressure gas blowing pipe. The automatic drainage and sewage discharger and the drainage and sewage pipe connected to the automatic drainage and sewage discharger.

As a further improvement of the present invention, an electromagnetic pulse valve is provided between the high-pressure gas bag and the high-pressure gas blowing pipe.

As a further improvement of the present invention, the dust-removing chamber is provided with a multi-channel cage frame and a flat cloth tube or dust-removing cloth bag set on the multi-channel cage frame; the multi-channel cage frame includes a fixed base, one end of which is fixed on a fixed An air chamber partition arranged at intervals on the base and a fixing flange arranged at the other end of the air chamber partition.

As a further improvement of the present invention, a support ring is provided between the fixed base and the fixed flange; several air chamber partitions are connected in series by galvanized steel wires and connected to the support ring.

As a further improvement of the present invention, the dust suction port includes a dust suction port body, a track disposed on the inner wall of the dust suction port body, and an adjusting baffle disposed inside the dust suction port body and capable of sliding along the track.

As a further improvement of the present invention, the suction port body includes a first side plate and a second side plate symmetrically connected to the first side plate.

As a further improvement of the present invention, the casing is also provided with dismantled door panels with handles located at the side of the dust removal chamber; adjacent disassembled door panels are sealed and connected by connecting pieces.

As a further improvement of the present invention, the connecting piece includes a screw, a sealing baffle and a fastening clamp fitted on the screw, a first nut arranged at one end of the screw to limit the sealing baffle, a second nut arranged at the other end of the screw. The nut, the nut protection sleeve fixed on the second nut and the gasket arranged between the fastening splint and the nut protection sleeve.

As a further improvement of the present invention, the outer edge of the nut protective sleeve is provided with anti-skid lines.

As a further improvement of the present invention, the casing is also provided with air outlet holes for the air outlet of the fan; the top of the casing is provided with mounting lugs.

Compared with prior art, the beneficial effect that the present invention obtains is as follows:

The present invention is designed for grain storage and transportation equipment and is used for dust removal and filtration of grain storage and transportation equipment. , the cleaning effect is good, and an automatic drainage and sewage discharger is installed at the lower end of the high-pressure air bag. After the air compressed by the air compressor enters the high-pressure air bag, the water and oil contained in the compressed air are collected in the automatic drainage and sewage discharger, and discharged through the drainage and sewage pipe Equipment, clean high-pressure pulsed air blows and removes dust on the flat cloth cylinder or dust removal bag, the dust removal and filtration effect is good, it does not cause damage to the equipment, and prolongs the service life of the flat cloth cylinder or dust removal bag; It can connect the dust inlet to the material conveying place of the grain storage and conveying equipment through a hose for dust suction. The dust suction port is set under the dust removal room. When the equipment is installed on the grain storage and conveying equipment, the dust removal port is directly connected to the grain storage. Dust suction and filtration is carried out at the feeding place of the conveying equipment, which can simultaneously absorb and filter the dust generated when the auger of the grain storage and conveying equipment picks up the material and the dust inside the conveyor belt during conveying. The track and the adjusting baffle are set up, which can conveniently adjust and adjust the position of the baffle on the track according to the size of the dust outlet of the grain storage and conveying equipment and the dust impurity content of the grain, thereby changing the size of the dust suction port and the dust suction. Intensity, to achieve the most suitable dust collection effect; in the dust removal room, a number of multi-channel cage frameworks are set. The multi-channel cage framework has multiple independent air channels separated by the partition board of the air chamber. The gas blowback chamber installed on the side of the dust removal chamber is directly supplied with high-pressure gas by the high-pressure air bag, and forms a high-pressure pulse airflow through the control of the electromagnetic pulse valve, blowing back from the high-pressure gas injection hole of the blowing pipe to the dust removal chamber for cleaning. During the process, the blowing airflow pressure is large and stable, and the control is convenient. The high-speed airflow in each air duct does not affect each other. During the process of dust attached to the cloth drum, since each air chamber does not affect each other, at the moment of high-speed airflow injection, the cloth drum corresponding to each air chamber can obtain the same expansion and vibration effect, thereby avoiding the large expansion and vibration in the middle. The phenomenon of uneven cleaning effect due to small expansion and shaking on both sides makes the cleaning effect more uniform and improves the efficiency of filtration and cleaning. The installation adopts flange connection, which is easy to install and easy to operate. Within the volume, the supported flat cloth cylinder has a large filtering area, and the installation method is flexible, and can be installed horizontally and vertically; a structurally reasonable connector is provided between the dismantled door panels, the sealing baffle is located inside the casing, and the fastening splint is located outside the disassembled door panel , through the screw and nut tightening, the sealing baffle and the fastening splint seal and fix the adjacent dismantled door panels together, and a nut protective sleeve with anti-skid pattern is set on the second nut located outside the casing, which can It can be disassembled and assembled directly by hand without using a wrench. The invention is suitable for storage and transportation equipment in the grain industry. It is easy to install, has a good dust removal and stability effect, and has high uniform efficiency in cleaning the attached dust. Ash, dust removal and filtration effect is good, no damage to the equipment, prolonging the service life of the flat cloth cylinder or dust removal bag.

Description of drawings

Accompanying drawing 1 is a structural representation of the present invention;

Accompanying drawing 2 is the structural representation of fan air outlet of the present invention;

Accompanying drawing 3 is the structural representation of flat cloth tube of the present invention;

Accompanying drawing 4 is the structural representation of automatic drainage sewage discharger of the present invention;

Accompanying drawing 5 is the structural representation of drainage and blowdown pipe of the present invention;

Accompanying drawing 6 is the schematic diagram of the axonometric structure of the skeleton of multi-air channel cage of the present invention;

Accompanying drawing 7 is the schematic diagram of the front view of the frame of the cage with multiple ducts of the present invention;

Accompanying drawing 8 is the sectional structure schematic diagram of the connector of the present invention;

Accompanying drawing 9 is the schematic diagram of the axonometric structure of the connector of the present invention;

Accompanying drawing 10 is the side view structure diagram of the dust suction port of the present invention;

Accompanying drawing 11 is the schematic cross-sectional structure diagram of the dust suction port of the present invention;

Accompanying drawing 12 is the top structural schematic diagram of the dust suction port of the present invention.

In the attached picture:

1. Case, 2. Dust inlet, 3. Fan motor, 6. Air outlet, 7. Installation lugs, 8. Inspection cover, 9. Removal of door panel, 10. Handle, 11. Connector, 11-1 Screw, 11-2 First nut , 11-3 Fastening plate, 11-4 Gasket, 11-5 Nut protection sleeve, 11-6 Anti-slip pattern, 11-7 Second nut, 12 Drainage and sewage pipe, 14 Fan, 15 High pressure air bag, 16 Electromagnetic pulse Valve, 18 dust suction port, 18-1 first side plate, 18-2 second side plate, 18-3 adjustment baffle, 18-4 track, 19 flat cloth tube, 20 high-pressure gas injection pipe, 21 multi-air duct Cage frame, 22 automatic drainage and sewage discharger, 26 fixed flange, 27 air chamber partition, 28 support ring, 29 galvanized steel wire, 30 fixed base, 31 fan outlet.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in the accompanying drawings 1-12, a horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment includes a casing 1, a dust inlet 2 arranged on the casing 1, and a dust inlet 2 arranged on the casing 1. The fan 14 on the top, the suction chamber communicated with the fan suction port of the fan 14, the dust removal chamber communicated with the suction chamber on one side, the dust suction port 18 arranged under the dust removal chamber and the gas reflection chamber arranged on the other side of the dust removal chamber Blowing chamber; the gas blowing chamber includes a high-pressure gas blowing pipe 20, a high-pressure gas blowing hole arranged on the high-pressure gas blowing pipe 20 and opposite to the dust removal chamber, and a high-pressure gas bag 15 communicated with the high-pressure gas blowing pipe 20 1. The automatic drainage and sewage discharger 22 that is arranged on the lower end of the high-pressure air bag 15 and the drainage and sewage discharge pipe 12 connected to the automatic drainage and sewage discharger 22. As preferably, the high-pressure gas injection pipe 20 and the flat cloth tube are vertically intersecting. Due to the limitations of the space structure of the equipment, and the processed air contains less dust and less impurities, more than a dozen cylinders are sprayed at a time. In order not to weaken the blowing effect, the multi-channel cage frame 21 does not affect each other and the multi-air channels, so that it can To ensure the cleaning effect of each part of the flat cloth cylinder 19, a single high-pressure gas injection pipe 20 unit pulse time sprays more than a dozen flat cloth cylinders 19, only for the local flat cloth corresponding to the independent air chamber of the multi-air duct cage skeleton 21 Cartridge 19 has cleaning effect. An electromagnetic pulse valve 16 is arranged between the high-pressure gas bag 15 and the high-pressure gas blowing pipe 20 .

The dust suction port 18 includes a dust suction port body, a track 18-4 arranged on the inner wall of the dust suction port body, and an adjusting baffle 18-3 which is arranged inside the dust suction port body and can slide along the track 18-4, According to the size of the dust outlet of the grain storage and conveying equipment and the dust impurity content of the grain, the position of the baffle on the track can be adjusted conveniently, thereby changing the size of the dust suction port 18 and the dust suction strength to achieve the most suitable suction. dust effect. The dust suction port body includes a first side plate 18-1 and a second side plate 18-2 symmetrically connected to the first side plate 18-1, and the two side plates are split into pieces to facilitate the installation of the track 18-4 and adjustment baffle 18-3. The fan 14 is driven by the fan motor 3 and is connected to the dust inlet 2 and the grain storage and conveying equipment through a connecting hose. The dust in the airflow adheres to the dust removal chamber, and the gas blowback chamber on the other side of the dust removal chamber provides high-pressure airflow to blow back and clean the dust removal chamber, so that the dust removal chamber maintains a good dust removal effect. The dust-removing chamber is provided with a multi-air duct cage frame 21 and a flat cloth tube 19 or a dust removal bag set on the multi-air channel cage frame 21. The flat cloth tube 19 is also called a flat cloth bag, and the multi-air channel cage frame 21 is mainly used for The cloth tube 19 or the dust removal bag plays a supporting role, and increases the dust removal and filtration area, and the flat cloth tube 19 or the dust removal bag is set on the multi-air duct cage skeleton 21 . The multi-duct cage frame 21 includes a fixed base 30 , one end of which is fixed on the fixed base 30 and is spaced apart from an air chamber partition 27 , and a fixed flange 26 is arranged on the other end of the air chamber partition 27 . A support ring 28 is provided between the fixed base 30 and the fixed flange 26; several air chamber partitions 27 are connected in series through galvanized steel wires 29 and connected to the support ring 28 to ensure the position of the air chamber partition 27 of stability. The number of the support rings 28 is at least 2, preferably, one circle is set correspondingly at the upper end of the fixed flange 26 and the upper end of the fixed base 30 and one circle is correspondingly set at the lower end of the fixed flange 30 and the lower end of the fixed base 26 , the entire multi-channel cage skeleton 21 is stable and firm; the galvanized steel wire 29 can be galvanized steel wire with a diameter of 4mm, and the galvanized steel wire 29 and the support ring 28 are connected together by high-frequency welding. When cleaning dust, the air compressed by the air compressor enters the high-pressure air bag 15, and the water and oil contained in the compressed air are collected in the automatic drainage and sewage discharger 22 arranged at the lower end of the high-pressure air bag 15, and discharged through the drainage and sewage pipe 12. Equipment, the clean high-pressure air flow is controlled by the electromagnetic pulse valve 16 to form a high-pressure pulse air flow. The clean high-pressure air flow does not cause damage to the equipment and prolongs the service life of the flat cloth tube or dust bag. The high-pressure gas injection from the high-pressure gas injection pipe 20 The hole is blown back to each air chamber formed by the air chamber partition 27 and the flat cloth cylinder 19 or the dust removal bag to blow high-pressure air, so that the flat cloth cylinder 19 or the dust removal bag forms a shake, and the dust in the flat cloth cylinder 19 or the dust removal bag is shaken. Falling. The casing 1 is provided with an inspection cover plate 8 located at the electromagnetic pulse valve 16, which is convenient for inspection, maintenance and replacement of various components of the gas blowback chamber.

The casing 1 is also provided with a dismantling door panel 9 located at the side of the dust removal chamber and having a handle 10 to facilitate replacement of the flat cloth tube 19 or dust removal bag inside the dust removal chamber. The adjacent dismounted door panels 9 are sealed and connected through connecting pieces 11 . The connecting piece 11 includes a screw 11-1, a sealing baffle 11-8 sleeved on the screw 11-1, a fastening splint 11-3, and a second limit sealing baffle 11-8 set at one end of the screw 11-1. A nut 11-2, a second nut 11-7 arranged at the other end of the screw rod 11-1, a nut protective sleeve 11-5 set and fixed on the second nut 11-7, and a nut protector 11-5 arranged on the fastening splint 11-3 and The gasket 11-4 between the nut protection sleeves 11-5; the outer edge of the nut protection sleeve 11-5 is provided with anti-skid lines 11-6. The casing 1 is also provided with an air outlet hole 6 for supplying air from the air outlet 31 of the fan. The top of the casing 1 is provided with mounting lugs 7, which is convenient for hoisting and installation.

The present invention is a horizontal flat cloth cylinder dust collector designed for grain storage and transportation equipment and used for dust removal and filtration of grain storage and transportation equipment. The flat cloth cylinder 19 or dust removal bag in the dust removal chamber is cleaned by the high-pressure pulse airflow provided by the gas blowback chamber. Dust removal effect is good. An automatic drainage and sewage discharger 22 is installed at the lower end of the high-pressure air bag 15. After the air compressed by the air compressor enters the high-pressure air bag 15, the water and oil contained in the compressed air are collected in the automatic drainage and sewage discharger 22. The equipment is discharged through the drainage and sewage pipe 12, and the clean high-pressure pulsed air blows the flat cloth cylinder 19 or the dust removal bag to remove dust. The dust removal and filtration effect is good, and the equipment will not be damaged, and the service life of the flat cloth cylinder 19 or the dust removal bag is extended; The dust inlet 2 is set on the casing, and the dust inlet 2 can be connected to the material conveying place of the grain storage and conveying equipment through a hose for dust collection. When it is on the conveying equipment, the dust removal port 18 is directly connected to the feeding place of the grain storage and conveying equipment for dust suction and filtration, which can simultaneously absorb and filter the dust generated when the auger of the grain storage and conveying equipment is retrieving materials and the dust inside the conveyor belt during conveying, cleaning It is convenient and efficient, and has a good dust removal and cleaning effect on grain; the dust suction port 18 is equipped with a track 18-4 and an adjustment baffle 18-3, which can be adjusted conveniently according to the size of the dust outlet of the grain storage and transportation equipment and the dust impurity content of the grain Adjust the position of the baffle plate 18-3 on the track 18-4, thereby changing the size and dust suction strength of the dust suction port 18, to achieve the most suitable dust suction effect; multiple air duct cage skeletons 21 are arranged in the dust removal chamber, The multi-air duct cage frame 21 has multiple independent air ducts separated by the air chamber partition plate 27. The dust removal and filtration area is large. The gas blowback chamber installed on the side of the dust removal chamber is directly supplied with high-pressure gas by the high-pressure air bag 15. And through the control of the electromagnetic pulse valve 16, a high-pressure pulse airflow is formed. During the process of blowing back from the high-pressure gas injection hole of the high-pressure gas injection pipe 20 to the dust removal chamber for cleaning, the pressure of the injection airflow is large and stable, and the control is convenient. The high-speed air flow in the channel does not affect each other. In the filtering state, the air chamber partition 27 and the flat cloth cylinder 19 or the dust removal bag form a closed passage around. Independent of each other, at the moment of high-speed airflow injection, the flat cloth tubes 19 corresponding to each air chamber can obtain the same expansion and vibration effect, thus avoiding the phenomenon of large expansion and vibration in the middle and small expansion and vibration on both sides and uneven cleaning effect , so that the cleaning effect is more uniform, and the efficiency of filtering and cleaning is improved. The installation is connected by a fixed flange 26. The installation is simple and easy to operate, and it is convenient for the fixing and sealing of the flat cloth cylinder 19. Within a certain volume, the supported flat cloth The cylinder 19 has a large filtering area, flexible installation methods, and can be installed horizontally and vertically; a structurally reasonable connector 11 is arranged between the dismounted door panels 9, the sealing baffle 11-8 is located in the casing 14, and the fastening splint 11-3 is located in the disassembled Outside the door panel 9, through the tightening of the screw rod 11-1, the first nut 11-2, and the second nut 11-7, the sealing baffle plate 11-8 and the fastening splint 1 1-3 The adjacent dismounted door panels 9 are hermetically and fixedly connected together, and a nut protective sleeve 11-5 with anti-skid lines 11-6 is set on the second nut 11-7 located outside the casing 1, which can be used in Without using a wrench, it can be disassembled and assembled directly by hand. The invention is suitable for storage and transportation equipment in the grain industry. It is easy to install, has a good dust removal and stability effect, and has high uniform efficiency in cleaning the attached dust. dust, good dust removal and filtering effect, no damage to equipment, and prolongs the service life of the flat cloth cylinder 19 or dust removal bag.

The implementation manners described above are only preferred embodiments of the present invention, rather than an exhaustive list of feasible implementations of the present invention. For those skilled in the art, any obvious changes made without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (10)

1. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment, characterized in that it includes a casing (1), a dust inlet (2) arranged on the casing (1), a setting The fan (14) on the casing (1), the suction chamber communicated with the fan suction port of the fan (14), the dust removal chamber connected to the suction chamber on one side, and the dust suction port (18) arranged under the dust removal chamber ) and the gas blowback chamber set on the other side of the dust removal chamber; The gas blowback chamber includes a high-pressure gas blowing pipe (20), a high-pressure gas blowing hole arranged on the high-pressure gas blowing pipe (20) and opposite to the dust removal chamber, and a high-pressure gas blowing hole connected to the high-pressure gas blowing pipe (20). The air bag (15), the automatic drainage and sewage discharger (22) arranged at the lower end of the high-pressure air bag (15) and the drainage and sewage pipe (12) connected to the automatic drainage and sewage discharger (22). 2. A horizontal flat cloth cylinder dust collector for dust removal and filtration of grain storage and transportation equipment according to claim 1, characterized in that: between the high-pressure air bag (15) and the high-pressure gas injection pipe (20) An electromagnetic pulse valve (16) is arranged between them. 3. A horizontal flat cloth cylinder dust collector for dust removal and filtration of grain storage and transportation equipment according to claim 2, characterized in that: the dust removal chamber is equipped with a multi-channel cage skeleton (21) and is set in multiple The flat cloth cylinder (19) or the dust bag on the air channel cage frame (21); the multi-air channel cage frame (21) includes a fixed base (30), one end of which is fixed on the fixed base (30) and is arranged at intervals. The chamber partition (27) and the fixing flange (26) arranged at the other end of the air chamber partition (27). 4. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment according to claim 3, characterized in that: there is a A support ring (28); several air chamber partitions (27) are connected in series by galvanized steel wires (29) and connected to the support ring (28). 5. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment according to claim 4, characterized in that: the dust suction port (18) includes the dust suction port body, which is arranged on the dust suction port The track (18-4) on the inner wall of the mouth body and the adjustment baffle (18-3) which is arranged inside the dust suction mouth body and can slide along the track (18-4). 6. A horizontal flat cloth cylinder dust collector for dust removal and filtration of grain storage and transportation equipment according to claim 5, characterized in that: the dust suction port body includes a first side plate (18-1) and a The first side plate (18-1) is symmetrically connected to the second side plate (18-2). 7. A horizontal flat cloth cylinder dust collector for dust removal and filtration of grain storage and transportation equipment according to claim 6, characterized in that: the casing (1) is also provided with a belt located on the side of the dust removal room A disassembly door panel (9) with a handle (10); the adjacent disassembly door panels (9) are sealed and connected through a connecting piece (11). 8. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment according to claim 7, characterized in that: the connecting piece (11) includes a screw (11-1), which is sleeved on the screw (11-1) on the sealing baffle (11-8) and fastening splint (11-3), the first nut (11 -2), the second nut (11-7) set on the other end of the screw rod (11-1), the nut protective sleeve (11-5) set on the second nut (11-7) and set on the tight Spacer (11-4) between the clamping plate (11-3) and the nut protection sleeve (11-5). 9. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment according to claim 8, characterized in that: the outer edge of the nut protection sleeve (11-5) is provided with anti-skid lines (11 -6). 10. A horizontal flat cloth cylinder dust collector used for dust removal and filtration of grain storage and transportation equipment according to claim 9, characterized in that: the casing (1) is also provided with an air supply fan outlet (31) Air outlet holes (6) for air outlet; installation lugs (7) are provided on the top of the casing (1).