Filtering and dust removing device for dry-mixed mortar production

Abstract

The invention relates to the technical field of filtration and dust removal, and discloses a filtration and dust removal device for dry-mixed mortar production, the filtration and dust removal device comprises a bagged tail end filtration mechanism and a dust removal box, the bagged tail end filtration mechanism comprises a dust collection box, an opening binding mechanism, an exhaust sealing mechanism, a top frame and a bottom frame, the top of the dust collection box is connected with a discharge valve at the bottom of a discharge barrel, and the bottom feeds a packaging bag; the dust collection box is connected with the dust removal box through a pipeline, the opening binding mechanism tightly presses a bag opening of a packaging bag to the outer side of the dust collection box, the exhaust sealing mechanism discharges air at the top of the packaging bag into the dust collection box and seals the bag opening of the packaging bag in a hot melting mode, and dust-containing air in the dust collection box is discharged into the dust removal box for dust falling treatment. According to the device, the isolation type dust removal operation in the bagging process link is realized, the blank that a whole-line sealing dust removal system for dry-mixed mortar processing operation lacks effective dust removal operation in the final bagging link is filled, and the whole-line dust-free environment requirement for dry-mixed mortar processing is met.

Description

Technical Field

[0001] The invention relates to the technical field of filtering and dust removal, and in particular to a filtering and dust removal device for dry-mix mortar production. Background Art

[0002] Dry-mixed mortar refers to a granular or powdery material that is physically mixed in a certain proportion with dried and sieved aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers). It is transported to the construction site in bags or cans and can be used directly after adding water and stirring. Dry-mixed mortar is used in the construction industry in thin layers for bonding, cushioning, protection and decoration, and is widely used in construction and decoration projects.

[0003] The processing technology of dry-mixed mortar is mature. The existing dry-mixed mortar processing equipment adopts a fully sealed conveying process and cooperates with the corresponding dust removal system. In the stages of dry-mixed mortar raw material screening, conveying, mixing, re-screening, and unloading, a dust-free working environment is achieved. Dry-mixed mortar is mainly transported in the form of bagging and filling. In the process of filling the dry-mixed mortar into the filling vehicle, the dust is effectively controlled due to the adoption of pipeline transportation. In the bagging process, after the discharge barrel fills the dry-mixed mortar into the packaging bag, it is sealed by hot melt sealing. After the bottom pipe mouth of the discharge barrel is separated from the packaging bag and before the packaging bag is sealed, the space between the packaging bag mouth and the discharge valve is in an open state. The dust density here is large and dissipates into the air during the packaging stage, which makes the dust removal system of the whole line have a gap in the final bagging link and cannot achieve dust-free operation of the whole process. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a filtering and dust removal device for dry-mix mortar production.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a filtering and dust removal device for dry-mixed mortar production, comprising a bagged terminal filtering mechanism and a dust removal box, the bagged terminal filtering mechanism comprising a dust collecting box connected to a discharging barrel, the bottom of the dust collecting box feeds materials to the packaging bag, an exhaust pipe is provided at a through hole on the side of the dust collecting box, an exhaust fan is provided on the exhaust pipe, the end of the exhaust pipe is connected to the dust removal box, and an air outlet pipe is provided at the rear end of the dust removal box; The bagged terminal filtering mechanism also includes a tie-mouth mechanism, an exhaust sealing mechanism, a top frame and a bottom frame. The bottom frame is installed on a stretcher on the bottom support frame of the discharge barrel, the top frame is arranged on the bottom frame, the dust box and the tie-mouth mechanism are arranged on the top frame, the tie-mouth mechanism presses the bag opening of the packaging bag against the outside of the dust box, the exhaust sealing mechanism is arranged in the bottom frame, the air on the top of the packaging bag is discharged into the dust box, and the bag opening of the packaging bag is hot-melt sealed, a ventilation plug is arranged in the side through hole of the dust box, the external air enters the dust box through the ventilation plug, and the floating dust inside the dust box is discharged into the dust removal box through the exhaust pipe for dust reduction treatment.

[0006] As an improvement: the closing mechanism includes two groups of straight pressure plates and side pressure plates, two pressure strips are provided on the inner side of the straight pressure plate, slide seats are provided at both ends of the straight pressure plate, and two slide grooves slidably matched with the slide seats are provided on the inner side of the top frame. The two slide seats on the same side are hingedly connected to the rear end of the side pressure plate through two transmission rods respectively, and two positioning rods are slidingly provided in the through holes at the rear end of the side pressure plate. The two staggered positioning rods slidably match, a slide table is provided at the end of the positioning rod, and a slide groove is provided on the straight pressure plate. The slides at the ends of the two positioning rods are respectively slidably matched with the slide grooves on the two straight pressure plates, and the bag opening of the packaging bag is tightly attached to the outside of the dust collection box through the closing mechanism.

[0007] As an improvement: the clamping mechanism also includes a motor, a transmission shaft and two double-threaded rods, a gear 1 is provided at the output end of the motor, a gear 2 meshing with the gear 1 is provided on the transmission shaft, bevel gear 1 is provided at both ends of the transmission shaft, bevel gear 2 meshing with the bevel gear 1 is provided at the end of the double-threaded rod, the threads at the two ends of the double-threaded rod are in opposite directions, and a threaded hole matching the double-threaded rod is provided on the sliding seat to drive the two straight pressure plates to move toward each other synchronously.

[0008] As an improvement: the exhaust and sealing mechanism includes a cylinder, a push plate, a pressure shaft, an exhaust roller and a heat sealing plate. The cylinder is arranged in the mounting hole of the base frame, and the output end of the cylinder is connected to the push plate. Slides 2 are arranged at both ends of the push plate. The base frame is provided with a slide groove 3 that slides with the slide 2. The pressure shaft is arranged at the front end of the push plate. A plurality of pressure wheels and pressure plates are arranged on the pressure shaft at intervals. Connecting rods 2 are hingedly provided at both ends of the exhaust roller. Connecting rod 2 is hinged to the push plate. Connecting rod 1 is provided on the push plate. Connecting rod 1 is arranged at the front end of connecting rod 1. The air on the top of the packaging bag is discharged into the dust collecting box through the exhaust and sealing mechanism.

[0009] As an improvement: abutments are provided at both ends of the pressure shaft, and the two exhaust sealing mechanisms cooperate with the corresponding abutments. A sliding rod is provided on the rear side of the abutment, and a sliding sleeve that slides with the sliding rod is provided on the push plate. A spring connected to the sliding sleeve is provided on the outside of the sliding rod, so that when the exhaust roller moves, the positions of the pressure wheel and the pressure plate remain unchanged.

[0010] As an improvement: the dust collection box is provided with multiple partitions inside, a dust collecting platform is provided in the groove at the bottom of the dust collection box, a plurality of horizontal partitions corresponding to the partitions are provided on the dust collection platform, a longitudinal partition connecting the multiple horizontal partitions is provided on the dust collection platform, and a dust removal net is provided at the internal port of the dust collection box of the air outlet duct, and dust reduction treatment is carried out through the dust collection box.

[0011] As an improvement: the ventilation plug includes a mounting frame, a rubber sheet and a sealing plate are provided on the inner side of the mounting frame, the rubber sheet is attached to the sealing plate, the rubber sheet and the sealing plate are respectively provided with staggered through holes, a ventilation groove 1 is provided on the front side of the mounting frame, an adjustment plate is provided on the first ventilation groove, a ventilation groove 2 matching with the first ventilation groove is provided on the adjustment plate, columns are provided on both sides of the ventilation groove 1, tightening knobs are provided at the threaded holes at both ends of the adjustment plate, the tightening knobs cooperate with the columns to realize the one-way ventilation function through the ventilation plug.

[0012] Compared with the prior art, the invention has the following beneficial effects: the device realizes the isolated dust removal operation in the bagging process, fills the gap of the full-line sealed dust removal system in the dry-mixed mortar processing operation, lacks effective dust removal operation in the final bagging process, and meets the full-line dust-free environment requirements of the dry-mixed mortar processing. Specifically: 1. The flat pressing plate and the side pressing plate of the tie-mouth mechanism are used to make the bag opening close to the side of the dust collecting box to prevent dust from overflowing from the gap of the bag opening during bagging. The driving structure and the cooperation of the flat pressing plate and the side pressing plate enable a single driving source to drive two sets of flat pressing plates and side pressing plates to move synchronously. 2. The top of the packaging bag is flattened, exhausted and sealed through the exhaust and sealing mechanism. The structure is simple and the dust in the cavity at the top of the packaging bag is discharged into the dust collecting box, which can reduce the air content inside the packaging bag after sealing and prevent the dust in the cavity at the top of the packaging bag from drifting into the external air. 3. The dust collecting box installed between the discharge valve and the packaging bag realizes the collection of dust. Through the one-way ventilation of the ventilation blockage, the dust in the closed space of the dust collecting box is discharged into the dust removal box for dust reduction treatment, which effectively prevents the dust from drifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of a filtering and dust removal device for dry-mixed mortar production according to the present invention.

[0014] Figure 2 The present invention is a schematic structural diagram of a bagged terminal filtering mechanism of a filtering and dust removal device for dry-mixed mortar production.

[0015] Figure 3 It is an exploded view of a bagged terminal filtering mechanism of a filtering and dust removal device for dry-mixed mortar production according to the present invention.

[0016] Figure 4 The present invention is a schematic structural diagram of a dust collecting box of a filtering dust removal device for producing dry-mixed mortar.

[0017] Figure 5 The present invention is a cross-sectional view of a dust collecting box of a filtering dust removal device for producing dry-mixed mortar.

[0018] Figure 6 It is an exploded view of ventilation and plugging of a filtering and dust removal device for dry-mix mortar production according to the present invention.

[0019] Figure 7 The present invention is a schematic structural diagram of a constriction mechanism of a filtering and dust removal device for dry-mix mortar production.

[0020] Figure 8 The present invention is a schematic structural diagram of an exhaust sealing mechanism of a filtering and dust removal device for dry-mix mortar production.

[0021] Fig. 9 It is an exploded view of an exhaust sealing mechanism of a filtering and dust removal device for dry-mix mortar production according to the present invention.

[0022] Fig.10 The utility model is a cross-sectional view of a top frame and a bottom frame of a filtering and dust removing device for producing dry-mixed mortar according to the present invention.

[0023] Fig.11 The present invention is a cross-sectional view of a dust removal box of a filtering dust removal device for producing dry-mixed mortar.

[0024] As shown in the figure: 01, support frame; 02, discharge barrel; 03, discharge valve; 04, stretcher; 05, conveyor belt; 06, packaging bag; 1, bag end filter mechanism; 2, dust collecting box; 3, tie mouth mechanism; 4, exhaust sealing mechanism; 5, top frame; 6, bottom frame; 7, dust removal box; 21, feed inlet; 22, discharge shrinkage; 23, exhaust pipe; 231, exhaust fan; 24, guide plate; 25, ventilation plug; 251, installation frame; 252, column; 253, ventilation groove one; 254, rubber sheet; 255, sealing plate; 256, adjustment plate; 257, ventilation groove two; 258, tightening screw; 31, motor; 311, gear one; 32, transmission shaft; 321, gear two; 322, bevel gear one; 33, double threaded rod ;331, bevel gear two;34, straight pressure plate;341, pressure strip;342, slide seat;343, slide groove one;35, transmission rod;36, side pressure plate;37, positioning rod;371, slide table one;41, cylinder;42, push plate;421, sleeve;422, connecting rod one;423, slide table two;43, pressure shaft;431, pressure wheel;432, pressure plate;433, stop table;434, slide rod;435, spring;44, exhaust roller;441, connecting rod two;45, heat sealing plate;51, clamping table;52, slide groove two;53, shaft groove;61, slide groove three;62, mounting hole;71, partition;72, dust collecting table;721, horizontal partition;722, longitudinal partition;73, air outlet duct;731, dust removal net. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0026] Combined with Figure 1 , Attachment Figure 2 and attached Figure 3As shown, a filtering and dust removal device for dry-mixed mortar production includes a bagged terminal filtering mechanism 1 and a dust removal box 7. The bagged terminal filtering mechanism 1 includes a dust collecting box 2, a tie-mouth mechanism 3, an exhaust sealing mechanism 4, a top frame 5 and a bottom frame 6. The top of the dust collecting box 2 is connected to the discharge valve 03 at the bottom of the discharge barrel 02, and the bottom feeds the material to the packaging bag 06. The dust collecting box 2 is connected to the dust removal box 7 through a pipeline. The tie-mouth mechanism 3 presses the bag opening of the packaging bag 06 against the outside of the dust collecting box 2. The exhaust sealing mechanism 4 discharges the air at the top of the packaging bag 06 into the dust collecting box 2, and hot-melt seals the bag opening of the packaging bag 06. The dust-containing air inside the dust collecting box 2 is discharged into the dust removal box 7 for dust reduction treatment.

[0027] Combined with Figure 7 and attached Fig.10 As shown, the constriction mechanism 3 includes two groups of straight pressure plates 34 and side pressure plates 36, two pressure strips 341 are provided on the inner side of the straight pressure plate 34, slide seats 342 are provided at both ends of the straight pressure plate 34, and a slide groove 52 slidably matched with the slide seat 342 is provided on the inner side of the top frame 5. The two slide seats 342 on the same side are hingedly connected to the rear ends of the side pressure plates 36 through two transmission rods 35 respectively, and two positioning rods 37 are slidably provided in the through holes at the rear ends of the side pressure plates 36. The two misplaced positioning rods 37 slidably match, and a slide table 371 is provided at the end of the positioning rod 37, and a slide groove 343 is provided on the straight pressure plate 34, and the slide tables 371 at the ends of the two positioning rods 37 respectively slidably match with the slide grooves 343 on the two straight pressure plates 34.

[0028] The working principle of the closing mechanism 3 is as follows: after the bag opening of the packaging bag 06 is inserted into the bottom of the dust box 2, the two straight pressing plates 34 are moved toward the dust box 2 through the driving structure. When the two straight pressing plates 34 move toward each other, the side pressing plates 36 are pushed to move toward the dust box 2 through the transmission rod 35 until the pressure strip 341 and the side pressing plates 36 press the bag opening of the packaging bag 06 against the outside of the dust box 2. When the side pressing plates 36 move, the slide 371 at the end of the positioning rod 37 is driven to move on the slide groove 343. At this time, the positioning rod 37 slides in the through hole at the rear end of the side pressing plates 36. The positioning rod 37 keeps the side pressing plates 36 moving in the positive direction to prevent the side pressing plates 36 from rotating so that the bag opening of the packaging bag 06 is not completely pressed against the outside of the dust box 2, so that the dust-containing gas is discharged from the leak when loading.

[0029] Combined with Figure 7 and attached Fig.10As shown, the constriction mechanism 3 also includes a motor 31, a transmission shaft 32 and two double-threaded rods 33. A gear 1 311 is provided at the output end of the motor 31, and a gear 2 321 meshing with the gear 1 311 is provided on the transmission shaft 32. The transmission shaft 32 and the two double-threaded rods 33 are rotatably arranged in the shaft groove 53 on the inner side of the top frame 5. Bevel gear 1 322 is provided at both ends of the transmission shaft 32, and bevel gear 2 331 meshing with the bevel gear 1 322 is provided at the end of the double-threaded rod 33. The threads at both ends of the double-threaded rod 33 are in opposite directions, and a threaded hole matching the double-threaded rod 33 is provided on the slide seat 342.

[0030] The working principle of the driving structure of the closing mechanism 3 is as follows: the motor 31 drives the gear 1 311 to rotate, and the transmission shaft 32 is rotated through the meshing transmission of the gear 1 311 and the gear 2 321, and the two double-threaded rods 33 are rotated through the meshing transmission of the bevel gear 1 322 and the bevel gear 2 331 at the end of the transmission shaft 32. Since the threads at both ends of the double-threaded rod 33 are in opposite directions, the two straight pressure plates 34 are driven to move toward each other. The above-mentioned driving structure can also be replaced by a cylinder, which pushes the two straight pressure plates 34 to move synchronously, or a double-rod cylinder can be set between the slide seats 342, and the two straight pressure plates 34 are pulled to move synchronously by the double-rod cylinder.

[0031] Combined with Figure 8 , Attachment Fig. 9 and attached Fig.10 As shown, the exhaust sealing mechanism 4 includes a cylinder 41, a push plate 42, a pressure port shaft 43, an exhaust roller 44 and a heat sealing plate 45. The cylinder 41 is arranged in the mounting hole 62 of the base frame 6. The output end of the cylinder 41 is connected to the push plate 42. The two ends of the push plate 42 are provided with a second slide 423. The base frame 6 is provided with a slide groove 3 61 that slidably cooperates with the second slide 423. The pressure port shaft 43 is arranged at the front end of the push plate 42. A plurality of pressure wheels 431 and a pressure plate 432 are arranged on the pressure port shaft 43 at intervals. A stopper 433 is provided at the end, and the two exhaust sealing mechanisms 4 correspond to the stoppers 433, and a sliding rod 434 is provided on the rear side of the stopper 433. A sliding sleeve 421 that slides with the sliding rod 434 is provided on the push plate 42, and a spring 435 connected with the sliding sleeve 421 is provided on the outer side of the sliding rod 434. A connecting rod 2 441 is hingedly provided at both ends of the exhaust roller 44, and the connecting rod 2 441 is hinged with the push plate 42. A connecting rod 1 422 is provided on the push plate 42, and the connecting rod 1 422 is arranged at the front end of the connecting rod 1 422.

[0032] Working principle of the exhaust and sealing mechanism 4: After the dry-mixed mortar is bagged, the cylinders 41 of the two exhaust and sealing mechanisms 4 simultaneously push the push plate 42 forward, and the pressing wheel 431 on the pressing shaft 43 pushes the packaging bag 06 on the upper side of the dry-mixed mortar to move closer to the middle, and the packaging bag 06 is attached to the dry-mixed mortar through the pressing plate 432. After the two exhaust and sealing mechanisms 4 contact the platforms 433, the two sides of the packaging bag 06 between the pressing wheels 431 are attached, and then the cylinder 41 continues to push the push plate 42. Move forward, the slide bar 434 slides with the slide sleeve 421, the spring 435 is compressed, and the two exhaust rollers 44 clamp the packaging bag 06 and move up at the same time, exhausting the air on the top of the packaging bag 06 into the dust collecting box 2, and then the two heat sealing plates 45 contact the packaging bag 06 and perform sealing by hot melting, and then the cylinder 41 drives the push plate 42 to move back a distance, so that the heat sealing plate 45 leaves the packaging bag 06, and when the air in the dust collecting box 2 is discharged into the dust removal box 7, the exhaust sealing mechanism 4 is reset.

[0033] Combined with Figure 1 and attached Fig.11 As shown, the dust collecting box 7 is provided with a plurality of partitions 71 inside, a dust collecting platform 72 is provided in the groove at the bottom of the dust collecting box 7, a plurality of transverse partitions 721 corresponding to the partitions 71 are provided on the dust collecting platform 72, a longitudinal partition 722 connecting the plurality of transverse partitions 721 is provided on the dust collecting platform 72, an air outlet duct 73 is provided at the rear end of the dust collecting box 7, and a dust collecting net 731 is provided at the internal port of the dust collecting box 7.

[0034] Working principle of the dust removal box 7: When the dust-containing air in the dust collection box 2 is discharged into the dust collection box 7 through the exhaust pipe 23, the dust-containing air settles in the dust collection box 7 and slowly falls onto the dust collecting table 72 for collection. The air flow route is extended through multiple partitions 71. The horizontal partitions 721 and the longitudinal partitions 722 are used to prevent the air flow from passing under the partitions 71. The dust removal net 731 at the end of the air outlet pipe 73 is used to prevent unsettled dust from being discharged from the air outlet pipe 73. An electrostatic net can be added to the partition 71 to accelerate the dust removal efficiency.

[0035] Combined with Figure 4 and attached Figure 6 As shown, a ventilation plug 25 is provided in the side through hole of the dust box 2, and the ventilation plug 25 includes a mounting frame 251, a rubber sheet 254 and a sealing plate 255 are provided on the inner side of the mounting frame 251, the rubber sheet 254 is attached to the sealing plate 255, and staggered through holes are provided on the rubber sheet 254 and the sealing plate 255 respectively, a ventilation groove 1 253 is provided on the front side of the mounting frame 251, an adjusting plate 256 is provided at the ventilation groove 1 253, a ventilation groove 257 cooperating with the ventilation groove 1 253 is provided on the adjusting plate 256, bars 252 are provided on both sides of the ventilation groove 1 253, tightening screws 258 are provided at the threaded holes at both ends of the adjusting plate 256, and the tightening screws 258 cooperate with the bars 252.

[0036] Working principle of ventilation plug 25: During loading, since rubber sheet 254 is attached to sealing plate 255 and the through holes on rubber sheet 254 and sealing plate 255 are misaligned, ventilation plug 25 will not ventilate, and dusty air will be confined in dust box 2. During exhaust, exhaust fan 231 works, since discharge valve 03 is closed, exhaust roller 44 clamps packaging bag 06, and closing mechanism 3 seals the bag mouth of packaging bag 06. At this time, negative pressure air is formed inside dust box 2. The rubber sheet 254 is deformed and moves away from the sealing plate 255, and the external air enters the dust collecting box 2 through the ventilation groove 1 253 and the through holes on the rubber sheet 254 and the sealing plate 255, and the dust-containing air is discharged into the dust removal box 7 through the exhaust pipe 23. By adjusting the height of the adjusting plate 256, the ventilation groove 1 253 and the ventilation groove 2 257 are misaligned to control the air flow rate, and the two ends of the adjusting plate 256 are fixed to the bar 252 by tightening the screw 258.

[0037] Combined with Figure 1 , Attachment Figure 4 , Attachment Figure 5 and attached Fig.10 As shown, the dust box 2 is fixed in the clamping table 51 on the top frame 5, the top of the dust box 2 is provided with an inlet 21 connected to the discharge valve 03, the bottom is provided with a discharge port 22, a plurality of guide plates 24 are provided inside the dust box 2, an exhaust pipe 23 is provided at the side through hole of the dust box 2, an exhaust fan 231 is provided on the exhaust pipe 23, and the end of the exhaust pipe 23 is connected to the dust removal box 7.

[0038] Working principle of the dust box 2: After the discharge valve 03 is opened, the dry-mixed mortar enters the dust box 2 through the feed port 21. Under the action of the guide plate 24, the dry-mixed mortar falls evenly into the packaging bag 06, making the top surface of the dry-mixed mortar after loading flat, which is convenient for the pressing wheel 431 and the pressing plate 432 of the exhaust sealing mechanism 4 to perform the pressing operation. The discharge neck 22 facilitates the packaging bag 06 transfer equipment to put the packaging bag 06 on the bottom of the dust box 2. The exhaust pipe 23 has an upward angle near the dust box 2 to prevent the dry-mixed mortar from entering the exhaust pipe 23.

[0039] In the specific implementation of the present invention, the dust collecting box 2 and the tie mouth mechanism 3 are arranged on the top frame 5, the exhaust sealing mechanism 4 is arranged in the bottom frame 6, the top frame 5 is fixed to the top of the bottom frame 6, the bottom of the bottom frame 6 is fixed to the stretcher 04 of the support frame 01, the conveyor belt 05 passes through the bottom of the bagged terminal filtering mechanism 1, the packaging bag 06 transfer device is arranged on the rear side of the bagged terminal filtering mechanism 1, the dust removal box 7 is arranged beside the support frame 01, and the dust removal box 7 is connected to the factory exhaust system or the dust removal exhaust system through the exhaust pipe 23; The packaging bag 06 is put on the bottom of the dust box 2 through the packaging bag 06 transfer device, and then the closing mechanism 3 presses the top of the packaging bag 06 against the outside of the dust box 2, and the unloading valve 03 is opened, and the material enters the packaging bag 06 through the dust box 2. After the loading is completed, the air on the top of the packaging bag 06 is discharged into the dust box 2 through the exhaust sealing mechanism 4, and the bag mouth of the packaging bag 06 is hot-melt sealed, and then the exhaust fan 231 is turned on, and the external air enters the dust box 2 through the ventilation plug 25, and the floating dust inside the dust box 2 is discharged into the dust removal box 7 through the exhaust pipe 23 for dust reduction treatment. After the exhaust inside the dust box 2 is completed, the exhaust sealing mechanism 4 and the closing mechanism 3 are reset successively, and the packaging bag 06 is transported to the storage workshop through the conveyor belt 05; As needed, the sealing position can be selected at the bag opening outside the dust box 2. At this time, the processing flow requires the heat sealing plate 45 to contact the packaging bag 06 at a certain time. After the closing mechanism 3 is released, the conveyor belt 05 moves the packaging bag 06 a certain distance to move the bag opening to the position of the heat sealing plate 45. After sealing, the exhaust sealing mechanism 4 is reset, and the conveyor belt 05 continues to transport the packaging bag 06 to the storage workshop.

[0040] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A filtering and dust removal device for dry-mixed mortar production, comprising a bagged terminal filtering mechanism (1) and a dust removal box (7), wherein the bagged terminal filtering mechanism (1) comprises a dust collection box (2) connected to a discharge barrel (02), wherein the bottom of the dust collection box (2) feeds material to a packaging bag (06), an exhaust pipe (23) is provided at a side through hole of the dust collection box (2), an exhaust fan (231) is provided on the exhaust pipe (23), an end of the exhaust pipe (23) is connected to the dust removal box (7), and an air outlet pipe (73) is provided at the rear end of the dust removal box (7), wherein the dust collection box (7) is characterized in that: The bagged terminal filtering mechanism (1) further comprises a tie-mouth mechanism (3), an exhaust sealing mechanism (4), a top frame (5) and a bottom frame (6); the bottom frame (6) is mounted on a stretcher (04) on a bottom support frame (01) of a discharge barrel (02); the top frame (5) is arranged on the bottom frame (6); the dust collecting box (2) and the tie-mouth mechanism (3) are arranged on the top frame (5); the tie-mouth mechanism (3) presses the bag opening of the packaging bag (06) against the outside of the dust collecting box (2); the exhaust sealing mechanism (4) is arranged in the bottom frame (6) to discharge the air at the top of the packaging bag (06) into the dust collecting box (2) and to heat-melt-seal the bag opening of the packaging bag (06); a ventilation plug (25) is arranged in a side through hole of the dust collecting box (2); external air enters the dust collecting box (2) through the ventilation plug (25); and floating dust in the dust collecting box (2) is discharged into the dust removal box (7) through the exhaust pipe (23) for dust reduction treatment.

2. A filtering and dust removal device for dry-mix mortar production according to claim 1, characterized in that: The constriction mechanism (3) comprises two groups of straight pressure plates (34) and side pressure plates (36), two pressure strips (341) are arranged on the inner side of the straight pressure plate (34), slide seats (342) are arranged at both ends of the straight pressure plate (34), a slide groove (52) slidably matched with the slide seat (342) is arranged on the inner side of the top frame (5), the two slide seats (342) on the same side are respectively hingedly connected to the rear ends of the side pressure plates (36) through two transmission rods (35), two positioning rods (37) are slidably arranged in the through holes at the rear ends of the side pressure plates (36), the two misaligned positioning rods (37) are slidably matched, a slide table (371) is arranged at the end of the positioning rod (37), a slide groove (343) is arranged on the straight pressure plate (34), and the slide tables (371) at the ends of the two positioning rods (37) are respectively slidably matched with the slide grooves (343) on the two straight pressure plates (34).

3. A filtering and dust removal device for dry-mix mortar production according to claim 2, characterized in that: The clamping mechanism (3) further comprises a motor (31), a transmission shaft (32) and two double-threaded rods (33); a gear 1 (311) is provided at the output end of the motor (31); a gear 2 (321) meshing with the gear 1 (311) is provided on the transmission shaft (32); bevel gear 1 (322) is provided at both ends of the transmission shaft (32); bevel gear 2 (331) meshing with the bevel gear 1 (322) is provided at the end of the double-threaded rod (33); the threads at the two ends of the double-threaded rod (33) are in opposite directions; and a threaded hole matching the double-threaded rod (33) is provided on the slide seat (342).

4. The filtering and dust removal device for dry-mix mortar production according to claim 1, characterized in that: The exhaust and sealing mechanism (4) comprises a cylinder (41), a push plate (42), a pressure-mouth shaft (43), an exhaust roller (44) and a heat-sealing plate (45). The cylinder (41) is arranged in a mounting hole (62) of a base frame (6). The output end of the cylinder (41) is connected to the push plate (42). Two slides (423) are arranged at both ends of the push plate (42). A slide groove (61) slidably matched with the slides (423) is arranged on the base frame (6). The pressure-mouth shaft (43) is arranged at a front end of the push plate (42). A plurality of pressure wheels (431) and a pressure plate (432) are arranged at intervals on the pressure-mouth shaft (43). Two connecting rods (441) are hingedly arranged at both ends of the exhaust roller (44). The connecting rods (441) are hingedly connected to the push plate (42). A connecting rod (422) is arranged on the push plate (42). The connecting rod (422) is arranged at the front end of the connecting rod (422).

5. A filtering and dust removal device for dry-mix mortar production according to claim 4, characterized in that: Both ends of the pressure port shaft (43) are provided with abutments (433), and the two exhaust sealing mechanisms (4) are matched with the corresponding abutments (433). A slide bar (434) is provided on the rear side of the abutment (433). A sliding sleeve (421) that is slidably matched with the slide bar (434) is provided on the push plate (42). A spring (435) connected to the sliding sleeve (421) is provided on the outer side of the slide bar (434).

6. The filtering and dust removal device for dry-mix mortar production according to claim 1, characterized in that: The dust removal box (7) is provided with a plurality of partitions (71) inside, a dust collecting platform (72) is provided in a groove at the bottom of the dust removal box (7), a plurality of transverse partitions (721) corresponding to the partitions (71) are provided on the dust collecting platform (72), a longitudinal partition (722) connected to the plurality of transverse partitions (721) is provided on the dust collecting platform (72), and a dust removal net (731) is provided at an internal port of the dust removal box (7) on the air outlet pipe (73).

7. The filtering and dust removal device for dry-mix mortar production according to claim 1, characterized in that: The ventilation plug (25) comprises a mounting frame (251), a rubber sheet (254) and a sealing plate (255) are provided on the inner side of the mounting frame (251), the rubber sheet (254) is in contact with the sealing plate (255), the rubber sheet (254) and the sealing plate (255) are respectively provided with staggered through holes, a ventilation groove 1 (253) is provided on the front side of the mounting frame (251), an adjustment plate (256) is provided at the ventilation groove 1 (253), a ventilation groove 2 (257) cooperating with the ventilation groove 1 (253) is provided on the adjustment plate (256), bars (252) are provided on both sides of the ventilation groove 1 (253), and tightening screws (258) are provided at the threaded holes at both ends of the adjustment plate (256), and the tightening screws (258) cooperate with the bars (252).

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