Bag-type dust collector of gypsum powder production line

Abstract

The invention relates to a bag-type dust collector of a gypsum powder production line, and relates to the technical field of gypsum powder production lines, the bag-type dust collector comprises a box body, an air inlet pipe, an air outlet pipe, a partition plate and a plurality of dust collecting bags, and further comprises a cleaning mechanism and a collecting mechanism, the cleaning mechanism comprises a moving block arranged on a first cavity in a sliding manner; the cleaning ring is used for brushing and cleaning the dust collecting cloth bag; the moving assembly is used for driving the moving block to move; the pulse blowing assembly is used for being started at intervals to blow and clean dust of the dust collecting bag; and the positioning assembly is arranged on the moving block and the cleaning ring and enables the cleaning ring to be connected with the partition plate and / or the moving block. According to the device, the dust collecting cloth bag is covered with the collecting mechanism and then cleaned, so that dust can be moved to the collecting position to be collected according to a designed path, the risk that the dust escapes everywhere is greatly reduced, the time spent on cleaning the dust collecting cloth bag is saved, and the flue gas purification efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of gypsum powder production, and in particular to a bag dust collector for a gypsum powder production line. Background Art

[0002] Gypsum powder is one of the five major gel materials. It is made from gypsum through a series of processes such as crushing and grinding. It is widely used in many application fields such as construction, building materials, industrial molds and art models, chemical industry and agriculture, food processing, and medical beauty. It is an important industrial raw material.

[0003] In the crushing, calcining and drying processes of building gypsum powder production, a large amount of flue gas generated needs to be purified to remove dust impurities, reduce environmental pollution and improve the processing environment. Commonly used dust purification equipment includes pulse bag dust collector, which is a dust removal device that uses bag filter elements made of fiber woven materials to capture solid particles in dust-containing gases. Its working principle is that dust particles are intercepted by colliding with fibers due to inertia when they pass around the filter cloth fibers.

[0004] However, since the gypsum raw materials contain moisture, the flue gas generated during the production process comes into contact with the dust filter bags inside the pulse bag dust collector during the purification process. Part of the moisture in the flue gas will remain inside the dust filter bags during the contact process, which can easily lead to an increase in the humidity inside the dust filter bags, causing the dust adhered to the surface to clump due to moisture, increasing the difficulty of pulse jet cleaning, slowing down the speed of air passing through the dust filter bags, and reducing the purification efficiency of the flue gas.

[0005] In order to improve the purification efficiency of flue gas, it is necessary to design a cleaning device to clean the dust on the dust filter bag. In the prior art, the dust on the dust filter bag is generally cleaned by pulse backblowing. During cleaning, the dust on the dust bag will disperse everywhere and is difficult to collect, which takes a long time to clean. Moreover, some firmly adhered dust is difficult to clean only by blowing, which takes a longer time to clean. In addition, the flue gas purification is interrupted during the cleaning process, thereby reducing the purification efficiency of the flue gas. Summary of the invention

[0006] In order to improve the efficiency and effect of flue gas purification, the present application provides a bag dust collector for a gypsum powder production line.

[0007] The present application provides a bag dust collector for a gypsum powder production line, which adopts the following technical solution: A bag dust collector for a gypsum powder production line, comprising a box, an air inlet pipe and an air outlet pipe, a partition plate, and a plurality of dust bags, wherein the partition plate is used to partition the box into a first chamber and a second chamber that are independent of each other, the air inlet pipe and the air outlet pipe are respectively connected to the first chamber and the second chamber and are used to input and output gas, a plurality of dust bags are arranged on the partition plate at intervals and are used to transport the air in the first chamber to the second chamber after dust removal, characterized in that: it also includes a cleaning mechanism and a collecting mechanism, the cleaning mechanism is used to clean the dust bags, the collecting mechanism is used to collect the cleaned dust and block the air from passing through and is in a retractable state, and the cleaning mechanism comprises: A moving block is slidably disposed on the first chamber along the axial direction of the dust bag and is located outside the dust bag; Cleaning ring, used to brush and clean the dust bag; A moving component, used for driving the moving block to move; Pulse air blowing component, used to start the dust bag at intervals to blow air and clean it; A positioning assembly, which is arranged on the moving block and the cleaning ring and connects the cleaning ring with the partition plate and / or the moving block, and the positioning assembly connects or disconnects the moving block with the collecting mechanism; When the dust bag is removing dust, the dust bag is located outside the collecting mechanism and the cleaning ring is connected to the partition plate and the moving block; when the dust bag needs to be cleaned, the moving block is separated from the cleaning ring and approaches and is connected to the collecting mechanism, the moving block approaches the cleaning ring and the collecting mechanism is abutted against the cleaning ring and the dust bag is located inside the collecting mechanism, the pulse blowing assembly is started to blow and clean the dust bag, the moving block moves to drive the cleaning ring to move and realize the cleaning of the dust bag.

[0008] By adopting the above technical solution, air enters the first chamber through the air inlet pipe, then the air passes through the dust bag for dust removal, and then the air enters the second chamber and is output through the air outlet pipe, thereby achieving dust removal and filtration of the air.

[0009] When the dust bag is removing dust from the air, that is, in the initial state, the cleaning ring is located on the partition plate and is positioned by the positioning assembly, while the moving block is located outside the dust bag. Therefore, the design of the moving block and the cleaning ring can reduce the blocking effect of the cleaning ring on the air filtered by the dust bag, thereby achieving cleaning while also reducing the adverse effects on the air filtering rate of the dust bag.

[0010] When cleaning is required, the moving block is disengaged from the cleaning ring, and the moving assembly starts to drive the moving block close to the collecting mechanism, so that the moving block abuts against the collecting mechanism, and the positioning assembly positions the moving block and connects the moving block and the collecting mechanism to each other, and then the moving assembly starts to drive the moving block and the collecting mechanism close to the cleaning ring, so that the collecting mechanism abuts against the cleaning ring and is positioned through the positioning assembly, so that the moving block, the cleaning ring and the collecting mechanism are connected to each other, and at the same time, the dust bag is moved to the inside of the collecting mechanism, and the pulse blowing assembly starts to blow air to the dust bag, so that the dust bag expands, and the blowing stops, and the dust bag rebounds under the action of elastic force, so that the dust on the dust bag falls off, and at the same time, the air passing through the dust bag during blowing can move in the collecting mechanism, and the moving air pushes the dust to continue to move in the collecting mechanism, so that the fallen dust can gather in the collecting mechanism for collection, and the blowing is repeated for a period of time, so that more dust on the dust bag can be moved to the collecting mechanism for collection.

[0011] The pulse blowing assembly continues to blow air, and the moving assembly starts to drive the moving block and the cleaning ring to move. The movement of the cleaning ring can further clean the dust on the dust collector bag. At the same time, the blown gas can continue to push the dust to gather toward the collecting mechanism, so that the cleaned dust can be gathered and collected. Then the positioning assembly is unlocked to disengage the moving block from the collecting mechanism. The moving assembly drives the moving block and the cleaning ring to move back, so that the cleaning ring rests on the mounting plate and is positioned by the positioning assembly. Therefore, the moving block can also position the cleaning ring. When cleaning is needed, repeat the above steps to clean the dust collector bag. After cleaning is completed, the dust collector bag continues to purify the flue gas.

[0012] By placing the dust collector bag inside the collection mechanism and then cleaning it, the dust can be moved to the collection point for collection along the designed path, thereby greatly reducing the risk of dust scattering and saving the time spent on cleaning the dust collector bags. Moreover, most of the dust on the dust collector bags is first cleaned by blowing, and then the cleaning is carried out by the coordination of blowing and cleaning ring brushes, which greatly improves the cleaning effect and efficiency of the dust collector bags, further saves the time spent on cleaning the dust collector bags, shortens the time of interruption of flue gas purification, makes the dust collector bag cleaning effect better, and improves the flue gas purification efficiency.

[0013] Optionally, the box body is provided with a mounting plate for dividing the first chamber into an air inlet chamber and an ash storage chamber which are independent of each other, the air inlet pipe is connected with the air inlet chamber and the dust bag is located in the air inlet chamber, and a mounting hole for dust to enter the ash storage chamber is provided on the mounting plate and at each dust bag, and the collection mechanism includes: A support assembly is arranged on the mounting hole and abuts against the dust bag for support and cooperates with the mounting hole to form a passage space for dust to pass through; A telescopic member is arranged on the mounting plate and enables the support assembly to be located inside the telescopic member and to be telescopic; A collecting ring is arranged on the telescopic member, and when the moving block abuts against the collecting ring, it is positioned by a positioning assembly, so that the moving block and the collecting ring move simultaneously and the dust bag is located in the telescopic member; The blocking piece is arranged on the collecting ring, the inner diameters of the blocking piece, the collecting ring and the telescopic piece are all larger than the outer diameter of the dust bag, and when the dust bag is used to remove dust from the air, the collecting ring drives the blocking piece to block the passage space; when the dust bag needs to be cleaned, the moving block drives the collecting ring and the blocking piece to move and open the passage space; The discharge and collection assembly is arranged on the box body and is used to discharge the dust in the ash storage cavity for collection.

[0014] By adopting the above technical scheme, the air inlet chamber is used for air to pass through, and the ash storage chamber is used for dust to enter and be collected. When the dust bag is removing dust, the collection ring drives the blocking member to block the passage space, so that air does not enter the ash storage chamber and dust removal is carried out normally; when cleaning is required, the moving block approaches and abuts against the collection ring and is positioned through the positioning assembly, and then the moving block drives the collection ring to move close to the cleaning ring at the same time, so that the collection ring abuts against the cleaning ring for positioning, and the moving block and the cleaning ring are positioned through the positioning assembly, so that the moving block, the collection ring and the cleaning ring are connected to each other, and at the same time, the collection ring moves, so that the telescopic member extends and drives the blocking member away from the passage space to open the passage space, and the dust bag is located in the telescopic member.

[0015] The dust bag is cleaned by blowing air, and the air pushes the dust to move in the telescopic part, and the dust moves to the discharge collection assembly through the passage space. Then the moving block drives the cleaning ring, the collecting ring and the sealing part to approach the mounting plate, and the dust cleaned by the cleaning ring continues to move in the telescopic part under the push of gas, so that the cleaned dust moves to the discharge collection assembly for collection, and the movement of the collecting ring causes the telescopic part to extend and retract, and the sealing part approaches and is installed in the passage space for sealing, and then the moving block disengages from the collecting ring, and the moving block drives the cleaning ring to continue to move back and rest against the partition plate for positioning, thereby realizing the cleaning of the dust bag.

[0016] The collecting ring, telescopic part and sealing part move and the dust bag needs to pass through the inside of the three. Therefore, the inner diameters of the collecting ring, telescopic part and sealing part need to be larger than the outer diameter of the dust bag. The dust bag needs to seal the mounting holes when removing dust. Therefore, the support assembly can seal some mounting holes. The sealing parts are used to seal the mounting holes located outside the support assembly, that is, the passage space. That is, the sealing parts and the support assembly cooperate to achieve the sealing of the mounting holes, thereby improving the purification efficiency of the flue gas. Furthermore, the support assembly can also support the dust bag, improve the stability of the dust bag during operation, and further improve the purification efficiency of the flue gas.

[0017] Optionally, the support assembly includes: A support rod is arranged on the mounting hole and extends to a side of the mounting plate close to the dust bag, and the passage space is formed by the cooperation between the support rod and the mounting hole; The adjusting member is slidably mounted on the support rod in a direction close to or away from the dust bag and is positioned against an end of the dust bag away from the partition plate; The locking piece is used to position the adjusting piece.

[0018] By adopting the above technical solution, when the dust bag needs to be removed, the locking piece is unlocked and the adjusting piece is moved away from the dust bag. Then the dust bag can be replaced, and then the adjusting piece is pushed against the dust bag for positioning. The locking piece locks the adjusting piece, thereby supporting the dust bag, and the support rod can cooperate with the sealing piece to seal the mounting hole.

[0019] Optionally, the locking member is a locking screw.

[0020] Optionally, the discharge collection assembly includes: A collection box, arranged on the box body and used for collecting dust; The discharge member is arranged on the box body and is used to discharge the dust in the ash storage cavity into the collection box for collection.

[0021] By adopting the above technical solution, the discharge piece can be started to push the dust into the collection box for collection. At the same time, the discharge piece can also block the air entering the ash storage chamber, so that the air in the ash storage chamber forms a certain air pressure. The air pressure can push the dust in the ash storage chamber to move toward the discharge piece and finally be discharged into the collection box for collection.

[0022] Optionally, the discharge member includes: A discharge pipe is arranged on the box body and communicated with the ash storage chamber; A discharge screw, rotatably disposed on the discharge pipe and used to discharge dust in the ash storage chamber; Rotating part, used to drive the discharge screw to rotate.

[0023] By adopting the above technical solution, the rotating member drives the discharge screw to rotate, and the discharge screw rotates to discharge dust.

[0024] Optionally, the positioning component includes: The first electromagnet and the second electromagnet are arranged on the moving block and can be respectively adsorbed on the cleaning ring and the collecting ring for positioning; The electromagnet three is arranged on the cleaning ring and can be adsorbed on the partition plate for positioning.

[0025] By adopting the above technical scheme, when the dust bag is removing dust, the moving block is located at the cleaning ring, and the cleaning ring is positioned on the partition plate by adsorption of electromagnet three, electromagnet two is unlocked to separate the moving block from the cleaning ring, and the moving block is close to the collecting ring, so that electromagnet two is adsorbed and positioned on the collecting ring, and the moving block drives the collecting ring to approach the cleaning ring, so that the telescopic part extends, and at the same time the collecting ring rests on the cleaning ring, electromagnet one is energized to adsorb the cleaning part, and then the moving block drives the cleaning ring and the collecting ring to move to clean the dust bag, and after cleaning is completed, electromagnet two is unlocked to separate the moving block from the collecting ring, and the moving block drives the cleaning ring back to the partition plate, and electromagnet three is energized to adsorb on the partition plate for positioning.

[0026] Optionally, the pulse blowing component includes: A nozzle is arranged on the box body and blows air toward the inside of the dust bag; The pulse controller is arranged on the box body and is used to control the nozzle interval opening or closing and realize the nozzle pulse jetting.

[0027] By adopting the above technical solution, the pulse controller controls the nozzle to open or close, and the nozzle sprays gas into the dust bag, thereby achieving interval blowing and cleaning of the dust bag.

[0028] Optionally, the mobile component includes: A moving part is arranged on the box body; The connecting block is arranged on the moving block and is detachably connected to the piston rod of the moving member, and the moving member starts to drive the connecting block to move.

[0029] By adopting the above technical solution, the moving member starts to drive the connecting block to move, and the movement of the connecting block drives the moving block to move.

[0030] In summary, the present application includes at least one of the following beneficial technical effects: 1. By placing the dust bag cover inside the collection mechanism before cleaning, the dust can be moved to the collection point for collection along the designed path, thereby greatly reducing the risk of dust scattering and saving the time spent on cleaning the dust bags; and first, most of the dust on the dust bags is cleaned by blowing, and then the cleaning is carried out by the coordination of blowing and cleaning ring brushes, which greatly improves the cleaning effect and efficiency of the dust bags, further saves the time spent on cleaning the dust bags, shortens the time of interruption of flue gas purification, makes the cleaning effect of the dust bags better, and improves the flue gas purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional structural diagram of a bag filter; Figure 2 yes Figure 1 Schematic diagram of the cross section of AA; Figure 3 It is a partial structural diagram of a bag filter; Figure 4 yes Figure 2 The enlarged schematic diagram of the middle part B; Figure 5 It is a schematic diagram of the partial structure of the bag filter from another angle; Figure 6 yes Figure 2 Enlarged schematic diagram of part C in the middle.

[0032] Reference numerals: 1, box body; 11, air inlet pipe; 12, air outlet pipe; 13, partition plate; 131, partition hole; 14, dust bag; 15, first chamber; 151, mounting plate; 152, mounting hole; 153, mounting block; 154, passage space; 16, second chamber; 17, air inlet chamber; 18, ash storage chamber; 2, cleaning mechanism; 21, moving block; 22, cleaning ring; 3, moving assembly; 31, moving member; 32, connecting block; 4 , pulse blowing assembly; 41, nozzle; 42, mounting bracket; 5, positioning assembly; 51, electromagnet one; 52, electromagnet two; 53, electromagnet three; 6, collecting mechanism; 61, telescopic part; 62, collecting ring; 63, blocking part; 7, supporting assembly; 71, supporting rod; 72, adjusting part; 73, locking part; 8, discharge collecting assembly; 81, collecting box; 82, discharge part; 83, discharge pipe; 84, discharge screw; 85, rotating part. DETAILED DESCRIPTION

[0033] The present application is described in further detail below.

[0034] The embodiment of the present application discloses a bag dust collector for a gypsum powder production line.

[0035] Reference Figure 1 and Figure 2 The bag dust collector of the gypsum powder production line includes a box body 1, an air inlet pipe 11 and an air outlet pipe 12, a partition plate 13, and a plurality of dust removal bags 14. The partition plate 13 is fixedly mounted on the inner wall of the box body 1 and is in a horizontal state. The partition plate 13 is used to divide the box body 1 into a first chamber 15 and a second chamber 16 which are independent of each other. The first chamber 15 is located below the second chamber 16. The air inlet pipe 11 and the air outlet pipe 12 are connected to the first chamber 15 and the second chamber 16 respectively, and the air inlet pipe 11 and the air outlet pipe 12 are provided with valve bodies for controlling opening and closing and are respectively used for inputting and outputting gas. A plurality of dust removal bags 14 are in a vertical state and are arranged at intervals on the partition plate 13. The plurality of dust removal bags 14 are used to remove dust from the air in the first chamber 15 and transport it to the second chamber 16; it also includes a cleaning mechanism 2 and a collecting mechanism 6. The cleaning mechanism 2 is used to clean the dust removal bags 14. The collecting mechanism 6 is used to collect the cleaned dust and block the passage of air and can be retracted. When the dust removal bag 14 is performing dust removal work, the dust removal bag 14 is located on the outside of the collecting mechanism 6; when the cleaning mechanism 2 is cleaning, the collecting mechanism 6 is extended and the dust removal bag 14 is located on the inside of the collecting mechanism 6 for cleaning.

[0036] Reference Figure 2-Figure 4 A partition hole 131 penetrating the upper and lower surfaces of the partition plate 13 is provided on the partition plate 13 and located at the dust bag 14. The top end of the dust bag 14 is detachably mounted on the lower surface of the partition plate 13, and the partition hole 131 is located on the inner side of the dust bag 14; a horizontal mounting plate 151 is fixedly mounted on the inner wall of the box body 1 and located below the partition plate 13. The mounting plate 151 is used to separate the first chamber 15 into an air intake chamber 17 and an ash storage chamber 18 that are independent of each other. The air intake chamber 17 is located above the ash storage chamber 18 and is connected to the air intake pipe 11 and the partition hole 131; a mounting hole 152 is coaxially provided on the mounting plate 151 and located at each dust bag 14, and the inner diameter of the mounting hole 152 is larger than the outer diameter of the dust bag 14.

[0037] The cleaning mechanism 2 includes a moving block 21, a cleaning ring 22, a moving assembly 3, a pulse blowing assembly 4, and a positioning assembly 5. The moving block 21 is vertically slidably installed on the inner wall of the box body 1, and the moving block 21 is located in the air inlet chamber 17 and outside the dust bag 14; the cleaning ring 22 is coaxially arranged with the dust bag 14 and the inner diameter is larger than the outer diameter of the dust bag 14, and a plurality of cleaning brushes for brushing and cleaning the outer wall of the dust bag 14 are evenly arranged on the inner wall of the cleaning ring 22; a plurality of cleaning rings 22 are arranged at intervals and correspond to a plurality of dust bags 14 one by one, and two adjacent cleaning rings 22 are connected to each other by a connecting rod; the moving assembly 3 is used to drive the moving block 21 to move vertically; the pulse blowing assembly 4 is used to start blowing the dust bag 14 at intervals, so as to realize pulse blowing inside the dust bag 14, that is, intermittent blowing.

[0038] Reference Figure 4-Figure 5 The positioning assembly 5 is arranged on the moving block 21 and a cleaning ring 22 closest to the moving block 21 and connects the cleaning ring 22 to the partition plate 13 and / or the moving block 21. The positioning assembly 5 connects or disconnects the moving block 21 to or from the collecting mechanism 6. The movement start of the moving block 21 can drive multiple cleaning rings 22 to move.

[0039] Reference Figure 2 , Figure 4 and Figure 5 When the dust bag 14 is removing dust, the dust bag 14 is located outside the collecting mechanism 6, and the dust bag 14 is located above the collecting mechanism 6, so that the cleaning ring 22 is connected to the partition plate 13 and the moving block 21, thereby reducing the blocking effect on the passage of air and reducing the adverse effects on the dust collector during dust removal.

[0040] Reference Figure 2-Figure 4 When the dust bag 14 needs to be cleaned, the moving block 21 is separated from the cleaning ring 22, the moving block 21 is close to the collecting mechanism 6 and connected to the collecting mechanism 6, the moving block 21 moves back close to the cleaning ring 22 and makes the collecting mechanism 6 abut against the cleaning ring 22, and the dust bag 14 is located in the collecting mechanism 6.

[0041] The pulse blowing component 4 starts to perform intermittent air blowing cleaning on the dust bag 14, so that the fallen dust moves to the collecting mechanism 6 for collection, and then the cleaning ring 22 is separated from the partition plate 13, and the pulse blowing component 4 continues to blow air, and the moving block 21 moves to drive the cleaning ring 22 to move to clean the dust bag 14, and the fallen dust continues to fall into the collecting mechanism 6 for collection; after cleaning is completed, the moving block 21 is separated from the collecting mechanism 6, and the moving block 21 drives the cleaning ring 22 to move upward to its original position, and the cleaning ring 22 continues to be connected to the partition plate 13, thereby purifying the flue gas again.

[0042] Reference Figure 2 , Figure 4 , Figure 5 The moving component 3 includes a moving part 31 and a connecting block 32. The moving part 31 is fixedly mounted on the inner wall of the box body 1 and is located in the air inlet chamber 17. The moving part 31 is in a vertical state. The moving part 31 can adopt a rodless cylinder, an electric push rod, etc.; the connecting block 32 is fixedly mounted on the piston rod of the moving part 31, and the connecting block 32 is detachably connected to the moving block 21 by screws; the moving part 31 starts to drive the connecting block 32 and the moving block 21 to move vertically.

[0043] Reference Figure 3 , Figure 4The pulse blowing assembly 4 includes a nozzle 41 and a pulse controller. A mounting bracket 42 is fixedly installed on the upper surface of the partition plate 13 and located at the partition hole 131. The nozzle 41 is fixedly installed on the mounting bracket 42. A plurality of nozzles 41 are arranged in a circular array around the axis of the partition hole 131. The nozzle 41 is connected to the air source and a control valve is used to control the opening or closing of the plurality of nozzles 41. The nozzle 41 is arranged vertically downward and allows air to be blown toward the inner side of the dust bag 14 through the partition hole 131. The pulse controller is fixedly installed on the box body 1, and the pulse controller is used to control the control valve.

[0044] Multiple nozzles 41 spray jets vertically downward into the inner side of the dust bag 14, and the gas pushes the dust bag 14 to expand. Then the multiple nozzles 41 are closed, and the dust bag 14 recovers under the action of elastic force. Then the nozzles 41 continue to spray jets, and the dust bag 14 vibrates in this reciprocating motion, that is, the dust on the dust bag 14 falls off through intermittent jetting.

[0045] Reference Figure 2 , Figure 3 and Figure 6 The collecting mechanism 6 includes a supporting assembly 7, a telescopic member 61, a collecting ring 62, and a blocking member 63. The supporting assembly 7 is arranged on the mounting hole 152 and rests on the dust bag 14 for support. The supporting assembly 7 cooperates with the mounting hole 152 to form a passage space 154 for dust to pass through.

[0046] The support assembly 7 includes a support rod 71, an adjusting piece 72 and a locking piece 73. A plurality of mounting blocks 153 are fixedly mounted on the inner wall of the mounting hole 152. One end of the support rod 71 is fixedly mounted on one end of the plurality of mounting blocks 153 away from the mounting hole 152, and the other end of the support rod 71 extends vertically upward to above the mounting plate 151. At the same time, the axes of the support rod 71, the mounting hole 152 and the dust bag 14 coincide with each other. At the same time, the outer diameter of the support rod 71 is smaller than the inner diameter of the mounting hole 152 and larger than the outer diameter of the dust bag 14. The passage space 154 is formed between the outer wall of the support rod 71 and the inner wall of the mounting hole 152 and is annular.

[0047] The adjusting member 72 is coaxially slidably arranged on the top of the support rod 71, and the top end of the adjusting member 72 is pressed against the bottom end of the dust bag 14 for positioning; the locking member 73 is used to position the adjusting member 72, and the locking member 73 can be a locking screw, which is threadedly connected to the outer wall of the support rod 71 and pressed against the adjusting member 72 for positioning.

[0048] The telescopic member 61 is in a telescopic state. The telescopic member 61 can be a bellows, a bellows cover or other telescopic structures. One end of the telescopic member 61 is fixedly mounted on the upper surface of the mounting plate 151, and the axes of the telescopic member 61 and the mounting hole 152 coincide. At the same time, the inner diameter of the telescopic member 61 is larger than the diameter of the mounting hole 152, and the support assembly 7 is located on the inner side of the telescopic member 61; the collecting ring 62 is coaxially fixedly mounted on the top of the telescopic member 61, and the sealing member 63 is a tubular structure and is coaxially arranged on the inner wall of the collecting ring 62, and the sealing member 63 extends vertically downward to the inner side of the telescopic member 61.

[0049] In the initial state, that is, when the dust bag 14 is removing dust, the telescopic part 61 is in a retracted state, and the blocking part 63 is inserted and installed on the passage space 154 and rests on the upper surface of the mounting block 153, and the collecting ring 62 and the blocking part 63 are positioned, thereby blocking the passage space 154, and the collecting ring 62 and the blocking part 63 are both located below the locking part 73 and the dust bag 14.

[0050] Reference Figure 2 , Figure 4 The positioning assembly 5 includes an electromagnet 1 51, an electromagnet 2 52 and an electromagnet 3 53. The electromagnet 1 51 and the electromagnet 2 52 are vertically spaced and fixedly installed on the side wall of the moving block 21 close to the cleaning ring 22 and are both arc-shaped; when the dust bag 14 is removing dust, the electromagnet 1 51 is energized and tightly adsorbed on the outer wall of the cleaning ring 22 for positioning, so that the moving block 21 and the cleaning ring 22 are connected to each other; the moving block 21 moves downward so that the electromagnet 2 52 moves downward to the collecting ring 62, and the electromagnet 2 52 is energized and tightly adsorbed on the outer wall of the collecting ring 62 for positioning, so that the moving block 21 and the collecting ring 62 are connected to each other; a mounting groove is coaxially provided on the upper surface of the cleaning ring 22, and the electromagnet 3 53 is fixedly installed on the mounting groove. When the cleaning ring 22 is against the lower surface of the partition plate 13, the electromagnet 3 53 is energized and tightly adsorbed on the lower surface of the partition plate 13 for positioning.

[0051] Reference Figure 2 The collecting mechanism 6 further includes a discharge collection assembly 8, which is disposed on the housing 1 and is used to discharge the dust in the ash storage cavity 18 for collection. The discharge collection assembly 8 includes a collection box 81 and a discharge member 82, wherein the collection box 81 is placed on the ground and is used to collect dust; the discharge member 82 is disposed on the housing 1 and is used to discharge the dust in the ash storage cavity 18 into the collection box 81 for collection.

[0052] The discharge member 82 includes a discharge pipe 83, a discharge screw 84 and a rotating member 85. The discharge pipe 83 is fixedly installed at the bottom of the box body 1 and is connected with the inside of the box body 1 and tilted downward to rest on the upper surface of the collecting box 81. The collecting box 81 is provided with a discharge hole connected with the discharge pipe 83; the discharge screw 84 is rotatably installed on the inner wall of the discharge pipe 83 and one end extends to the outside of the discharge pipe 83; the rotating member 85 is a rotating motor, the rotating member 85 is fixedly installed on the outer wall of the discharge pipe 83 and the output shaft is connected to the discharge screw 84, the rotating member 85 is started to drive the discharge screw 84 to rotate, and the rotation of the discharge screw 84 is used to discharge the dust in the ash storage chamber 18 into the collecting box 81 for collection.

[0053] The working principle of the embodiment of the present application is as follows: The air enters the air inlet chamber 17 through the air inlet pipe 11, and then passes through the dust removal bag 14 for dust removal. The air then enters the second chamber 16 and is output through the air outlet pipe 12, thereby achieving purification of the flue gas.

[0054] When cleaning is required, the air inlet pipe 11 and the air outlet pipe 12 are both closed, the electromagnet 1 51 is powered off to disengage the moving block 21 from the cleaning ring 22, the moving block 21 approaches the collecting ring 62, the electromagnet 2 52 is powered on to connect the moving block 21 and the collecting ring 62, the moving block 21 drives the collecting ring 62 to move up and abut against the cleaning ring 22, during the movement of the collecting ring 62, the telescopic part 61 is extended and the dust bag 14 is moved into the telescopic part 61, the movement of the collecting ring 62 also drives the blocking part 63 to open the passage space 154; the electromagnet 1 51 is powered on to connect the moving block 21 with the cleaning ring 22, the multiple nozzles 41 perform intermittent jetting, so that the dust on the dust bag 14 vibrates and falls off, and the dust enters the ash storage chamber 18 through the passage space 154 under the push of the gas.

[0055] The electromagnet three 53 is powered off, causing the cleaning ring 22 to separate from the partition plate 13, and the moving block 21 drives the cleaning ring 22 and the collecting ring 62 to approach the mounting plate 151. The cleaning ring 22 moves to continue cleaning the dust bag 14, and the nozzle 41 continues to jet, so that the dust continues to move to the ash storage chamber 18 for temporary storage, until the cleaning ring 22 and the collecting ring 62 move to the bottom of the dust bag 14, and the collecting ring 62 moves to drive the blocking member 63 to be plugged and installed in the passage space 154 for blocking and abutting against the mounting block 153 for positioning. The electromagnet two 52 is powered off, causing the moving block 21 to separate from the collecting ring 62, and the moving block 21 drives the cleaning ring 22 to move back upward and abut against the partition plate 13. The electromagnet three 53 is energized and adsorbed on the partition plate 13 to position the cleaning ring 22. At the same time, the moving block 21 can also position the cleaning ring 22. After cleaning is completed, the air inlet pipe 11 and the air outlet pipe 12 are opened and the flue gas purification process is carried out again.

[0056] The rotating member 85 starts to drive the discharge screw 84 to rotate, so that the dust in the ash storage chamber 18 is moved to the collection box 81 through the discharge pipe 83 for collection, thereby improving the cleaning efficiency and effect of the dust removal bag 14, saving the time spent on cleaning, shortening the time of flue gas purification interruption, and improving the flue gas purification efficiency.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bag dust collector for a gypsum powder production line, comprising a housing (1), an air inlet pipe (11) and an air outlet pipe (12), a partition plate (13), and a plurality of dust removal bags (14), wherein the partition plate (13) is used to partition the housing (1) into a first chamber (15) and a second chamber (16) that are independent of each other, the air inlet pipe (11) and the air outlet pipe (12) are respectively connected to the first chamber (15) and the second chamber (16) and are used to input and output gas, and the plurality of dust removal bags (14) are arranged at intervals on the partition plate (13) and are used to remove dust from the air in the first chamber (15) and then transport it to the second chamber (16), characterized in that: It also includes a cleaning mechanism (2) and a collecting mechanism (6), wherein the cleaning mechanism (2) is used to clean the dust removal bag (14), and the collecting mechanism (6) is used to collect the cleaned dust and block the passage of air and is in a retractable state, and the cleaning mechanism (2) includes: A movable block (21) is slidably disposed on the first chamber (15) along the axial direction of the dust removal bag (14) and is located outside the dust removal bag (14); A cleaning ring (22) for brushing and cleaning the dust bag (14); A moving assembly (3), used for driving the moving block (21) to move; A pulse air blowing component (4) is used to start the dust removal bag (14) at intervals to blow air and clean the dust; a positioning assembly (5) disposed on the moving block (21) and the cleaning ring (22) and connecting the cleaning ring (22) to the partition plate (13) and / or the moving block (21); the positioning assembly (5) connecting or disconnecting the moving block (21) to the collecting mechanism (6); When the dust bag (14) is removing dust, the dust bag (14) is located outside the collection mechanism (6) and the cleaning ring (22) is connected to the partition plate (13) and the moving block (21); when the dust bag (14) needs to be cleaned, the moving block (21) is separated from the cleaning ring (22) and approaches and is connected to the collection mechanism (6); the moving block (21) approaches the cleaning ring (22) and the collection mechanism (6) is abutted against the cleaning ring (22) and the dust bag (14) is located inside the collection mechanism (6); the pulse air blowing component (4) is started to blow and clean the dust bag (14); the moving block (21) moves to drive the cleaning ring (22) to move and the dust bag (14) is cleaned.

2. The bag dust collector for a gypsum powder production line according to claim 1 is characterized in that: The box body (1) is provided with a mounting plate (151) for dividing the first chamber (15) into an air intake chamber (17) and an ash storage chamber (18) which are independent of each other; the air intake pipe (11) is connected to the air intake chamber (17) and the dust removal bag (14) is located in the air intake chamber (17); a mounting hole (152) for allowing dust to enter the ash storage chamber (18) is provided on the mounting plate (151) and at each dust removal bag (14); and the collecting mechanism (6) comprises: A support assembly (7) disposed on the mounting hole (152) and resting against the dust removal bag (14) for support and cooperating with the mounting hole (152) to form a passage space (154) for dust to pass through; A telescopic member (61) is arranged on the mounting plate (151) and enables the support assembly (7) to be located inside the telescopic member (61) and to be telescopic; A collecting ring (62) is arranged on the telescopic member (61), and when the moving block (21) abuts against the collecting ring (62), it is positioned by means of a positioning assembly (5), so that the moving block (21) and the collecting ring (62) move simultaneously and the dust removal bag (14) is located inside the telescopic member (61); A blocking member (63) is arranged on the collecting ring (62); the inner diameters of the blocking member (63), the collecting ring (62) and the telescopic member (61) are all larger than the outer diameter of the dust bag (14); and when the dust bag (14) is used to remove dust from the air, the collecting ring (62) drives the blocking member (63) to block the passage space (154); when the dust bag (14) needs to be cleaned, the moving block (21) drives the collecting ring (62) and the blocking member (63) to move to open the passage space (154); A discharge collection assembly (8) is arranged on the box body (1) and is used to discharge and collect dust in the dust storage cavity (18).

3. The bag dust collector for a gypsum powder production line according to claim 2 is characterized in that: The support assembly (7) comprises: A support rod (71) is disposed on the mounting hole (152) and extends to a side of the mounting plate (151) close to the dust bag (14), wherein the passage space (154) is formed by the cooperation between the support rod (71) and the mounting hole (152); An adjusting member (72) is slidably mounted on the support rod (71) in a direction approaching or moving away from the dust bag (14) and abuts against an end of the dust bag away from the partition plate (13) for positioning; The locking member (73) is used to position the adjusting member (72).

4. The bag dust collector for a gypsum powder production line according to claim 3 is characterized in that: The locking member (73) is a locking screw.

5. The bag dust collector for a gypsum powder production line according to claim 2 is characterized in that: The discharge collection assembly (8) comprises: A collection box (81), arranged on the box body (1) and used for collecting dust; A discharge member (82) is arranged on the box body (1) and is used to discharge dust in the dust storage chamber (18) into the collection box (81) for collection.

6. The bag dust collector for a gypsum powder production line according to claim 5 is characterized in that: The discharge member (82) comprises: A discharge pipe (83) is arranged on the box body (1) and is in communication with the ash storage chamber (18); A discharge screw (84) rotatably disposed on the discharge pipe (83) and used to discharge dust in the dust storage chamber (18); The rotating member (85) is used to drive the discharge screw (84) to rotate.

7. The bag dust collector for a gypsum powder production line according to claim 2 is characterized in that: The positioning component (5) comprises: Electromagnet 1 (51) and electromagnet 2 (52) are arranged on the moving block (21) and can be respectively adsorbed on the cleaning ring (22) and the collecting ring (62) for positioning; The third electromagnet (53) is arranged on the cleaning ring (22) and can be adsorbed on the partition plate (13) for positioning.

8. The bag dust collector for a gypsum powder production line according to claim 5, characterized in that: The pulse blowing component (4) comprises: A nozzle (41) is disposed on the box body (1) and blows air toward the inside of the dust removal bag (14); A pulse controller is arranged on the housing (1) and is used to control the nozzle (41) to be opened or closed at intervals and to achieve pulse jetting of the nozzle (41).

9. The bag dust collector for a gypsum powder production line according to claim 1, characterized in that: The mobile component (3) comprises: A moving member (31) is arranged on the box body (1); The connecting block (32) is arranged on the moving block (21) and is detachably connected to the piston rod of the moving member (31). The moving member (31) is started to drive the connecting block (32) to move.

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