Auxiliary cleaning device for dust collection cloth bag

Abstract

The invention provides a dust collection cloth bag auxiliary cleaning device, and relates to the technical field of cloth bag dust removal auxiliary devices, the dust collection cloth bag auxiliary cleaning device comprises a dust collection box, the dust collection box is fixedly installed on a supporting frame, the dust collection box is divided into a first cavity and a second cavity through a partition plate, an air supply assembly is arranged in the first cavity, and a plurality of dust collection cloth bags are arranged in the second cavity; the tops of the dust collecting cloth bags are installed at the bottom of the partition plate, the beating mechanism is arranged on the side wall of the dust collecting box, and the stirring mechanism is arranged on the lower portion of the dust collecting box. When gypsum powder needs to be collected through the dust collecting cloth bag in gypsum powder production, the dust collecting cloth bag is shaken through the beating mechanism to avoid the phenomena that the dust collecting cloth bag is stained with materials and blocks due to insufficient blowback pressure or overlarge material viscosity, and the stirring mechanism drives the beating mechanism to work, so that the required transmission motor is reduced; and secondly, when falling down, the large materials adhered to the dust collecting cloth bag are scattered by the stirring mechanism, so that the phenomenon that the materials are blocked when directly falling onto the rotary discharger is avoided, and the flowing stability is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of bag dust removal auxiliary devices, and in particular to a dust collection bag auxiliary cleaning device. Background Art

[0002] The factory previously used a coagulant that was mainly prepared by adding gypsum powder and starch into a ball mill for mixing and grinding. After the technology was upgraded, the gypsum powder was initially ground through a turbine mill, and then the initially ground gypsum powder was collected through a dust collector. The powder was then added to a ball mill and mixed with starch for secondary grinding. However, the gypsum powder after the initial grinding was very sticky, and would stick to the bag and the silo wall when entering the dust collector, resulting in a decrease in the dust collection air volume and poor material discharge.

[0003] In the prior art, there is no disclosure of an auxiliary cleaning device for dust bags in the gypsum powder production process. Since the viscosity of the material in the gypsum powder production process is relatively high, the cleaning effect of the dust bags by conventional backblowing and vibration methods is not obvious, and it is difficult to use it in a bag dust collector used to collect materials with high viscosity. Therefore, it is urgent to design an auxiliary cleaning device for dust bags to solve the above problems. Summary of the invention

[0004] The present invention provides a dust bag auxiliary cleaning device to solve at least one of the problems raised by the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a dust bag auxiliary cleaning device, including a dust box, which is fixedly installed on a support frame. The dust box is divided into a first cavity and a second cavity by a partition, and an air supply assembly is arranged in the first cavity, and a plurality of dust bags are arranged in the second cavity, and the tops of the plurality of dust bags are installed on the bottom of the partition, a beating mechanism is arranged on the side wall of the dust box, and a stirring mechanism is arranged at the lower part of the dust box.

[0006] Preferably, a feeding pipe is fixedly mounted on the outer side wall of the dust collecting box, and an outlet of the feeding pipe is communicated with the second cavity.

[0007] Preferably, the air supply assembly includes a plurality of air supply ducts, and the plurality of air supply ducts are arranged in the first cavity at intervals in front and back, and the air outlets of the plurality of air supply ducts penetrate the side wall of the dust collecting box and are connected with the air inlet of the blower.

[0008] Preferably, the beating mechanism comprises a plurality of groups of beating assemblies, and the plurality of groups of beating assemblies are installed on the side wall of the dust collecting box at a front-rear interval;

[0009] The beating assembly includes a rotating shaft, one end of which rotates through the side wall of the dust box, a rotating frame is fixedly connected to one end of the rotating shaft in the second cavity, and the other end of the rotating shaft is fixedly connected to a first transmission pulley;

[0010] A plurality of first transmission pulleys are provided, and adjacent pairs of the plurality of first transmission pulleys are connected by a first transmission belt.

[0011] Preferably, the stirring mechanism includes a mounting seat, the mounting seat is fixedly mounted on the side wall of the support frame, the driving motor is fixedly mounted on the mounting seat, and a driving shaft is fixedly mounted on the output shaft of the driving motor, one end of the driving shaft rotates through the side wall of the dust collecting box to fix a stirring frame, and one end of the stirring frame rotates through the inner wall of the dust collecting box to fix a second transmission pulley, and the second transmission pulley is connected to the first transmission pulley through a second transmission belt.

[0012] Preferably, it also includes a dust removal performance detection device, which is used for the dust bag auxiliary cleaning device to detect the state of the dust collection bag in the dust collection box performing dust removal processing, and the dust removal performance detection device includes:

[0013] Densitometer, used to detect the density of gypsum powder transported inside the feeding pipeline;

[0014] A flow rate sensor is used to detect the flow rate of the gypsum powder transported inside the feeding pipeline;

[0015] A temperature sensor is used to detect the temperature inside the dust box when the dust bag is collecting dust;

[0016] A pressure sensor is used to detect the pressure inside the dust box when the dust bag is collecting dust;

[0017] A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the temperature sensor, the pressure sensor and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, the temperature sensor and the pressure sensor.

[0018] Preferably, the controller controls the alarm to work based on the density meter, flow rate sensor, temperature sensor and pressure sensor, including:

[0019] The dust collection rate of the dust bag after the dust bag is cleaned by the auxiliary cleaning device of the dust bag is calculated according to the formula and the detection values ​​obtained by the density meter, the flow rate sensor, the temperature sensor and the pressure sensor. The controller compares the dust collection rate Z of the dust bag after the current auxiliary cleaning device of the dust bag cleans the dust bag with the preset dust collection rate range of the dust bag. If the dust collection rate Z of the dust bag after the current auxiliary cleaning device of the dust bag cleans the dust bag is not within the preset dust collection rate range of the dust bag, the controller controls the alarm to sound an alarm:

[0020]

[0021] Among them, Z is the dust collection rate of the dust bag after the dust bag is cleaned by the dust bag auxiliary cleaning device, ρ is the detection value of the density of the gypsum powder transported inside the feeding pipe by the densitometer, v is the detection value of the flow rate of the gypsum powder transported inside the feeding pipe by the flow rate sensor, S is the cross-sectional area of ​​the feeding pipe, T is the detection value of the internal temperature of the dust box when the temperature sensor collects dust on the dust bag, P is the detection value of the internal pressure of the dust box when the pressure sensor collects dust on the dust bag, A is the cross-sectional area of ​​the dust bag, n is the number of dust bags in the dust box, and R is the airflow constant in the dust box.

[0022] Compared with the prior art, the dust bag auxiliary cleaning device provided by the present invention has the following beneficial effects:

[0023] The present invention realizes timely cleaning of dust collecting bags by means of the beating mechanism and the stirring mechanism. The device has a simple structure and shakes the dust collecting bags by means of the rotating frame to avoid bag sticking and agglomeration caused by insufficient back-blowing pressure or excessive material viscosity. The rotating frame is driven by the driving motor by means of belt transmission, thereby reducing the required transmission motor. When the large pieces of material adhered to the dust collecting bags fall off, they are broken up by the mixer to avoid the material jamming caused by falling directly on the rotary discharger, thereby ensuring the stability of the gypsum powder flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the structure of a dust bag auxiliary cleaning device provided in an embodiment of the present invention;

[0026] Figure 2A schematic diagram of the top view of the interior of a dust collecting box of the dust bag auxiliary cleaning device provided in an embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Dust box; 2. Support frame; 3. Partition; 4. First cavity; 5. Second cavity; 6. Dust bag; 7. Beating mechanism; 8. Stirring mechanism; 9. Feeding pipe; 10. Air supply pipe; 11. Rotating shaft; 12. Rotating frame; 13. First transmission pulley; 14. First transmission belt; 15. Mounting seat; 16. Driving motor; 17. Driving shaft; 18. Stirring frame; 19. Second transmission pulley; 20. Second transmission belt. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides the following embodiments

[0031] Example 1

[0032] The embodiment of the present invention provides a dust bag auxiliary cleaning device, such as Figure 1-Figure 2 As shown, it includes a dust box 1, which is fixedly mounted on a support frame 2. The dust box 1 is divided into a first cavity 4 and a second cavity 5 by a partition 3. An air supply assembly is arranged in the first cavity 4, and a plurality of dust collecting bags 6 are arranged in the second cavity 5, and the tops of the plurality of dust collecting bags 6 are mounted on the bottom of the partition 3. A beating mechanism 7 is arranged on the side wall of the dust box 1, and a stirring mechanism 8 is arranged at the lower part of the dust box 1.

[0033] Preferably, a feeding pipe 9 is fixedly mounted on the outer side wall of the dust collecting box 1 , and an outlet of the feeding pipe 9 is communicated with the second cavity 5 .

[0034] Preferably, the air supply assembly includes a plurality of air supply ducts 10, which are arranged in the first cavity 4 at intervals in front and back, and the air outlets of the plurality of air supply ducts 10 pass through the side wall of the dust box 1 and are connected to the air inlet of the blower.

[0035] The working principle and beneficial effects of the above technical solution are:

[0036] The dust bag auxiliary cleaning device of the present invention comprises a dust box 1, the dust box 1 is fixedly mounted on a support frame 2, the dust box 1 is divided into a first cavity 4 and a second cavity 5 by a partition 3, the first cavity 4 is provided with an air supply component, the air supply component is mainly used to blow air into the dust box 1 to ensure that a plurality of dust bags 6 in the dust box 1 can collect materials, and at the same time, a plurality of dust bags 6 are provided in the second cavity 5, wherein a plurality of dust bags 6 are arranged at intervals, which can improve the efficiency of dust removal. A beating mechanism 7 is arranged on the side wall of the dust box 1 to beat a plurality of dust bags 6 in the dust box 1, and a stirring mechanism 8 is arranged at the lower part of the dust box 1 to stir the materials collected in the dust box 1, to avoid excessive accumulation of materials, which may cause blockage of the discharge port of the dust box 1, and to improve the efficiency of the dust box 1 in discharging materials outward.

[0037] At the same time, a feeding pipe 9 is fixedly installed on the outer wall of the dust box 1, and the outlet of the feeding pipe 9 is connected with the second cavity 5, so that the gypsum powder inside the dust box 1 can be transported to the second cavity 5, so that a plurality of dust collecting bags 6 can efficiently complete the collection of dust. Secondly, the gypsum powder entering the second cavity 5 is filtered by the dust collecting bag 6, and then the gypsum powder is intercepted by the dust collecting bag 6 and gradually settles to the bottom of the dust box 1, while the clean air enters the interior through the gap of the dust collecting bag 6, and then is discharged from the top of the partition 3 into the first cavity 4, and finally discharged from the dust box 1 through the air supply component in the first cavity 4. The component includes a plurality of air supply ducts 10, and the plurality of air supply ducts 10 are arranged in the first cavity 4 at intervals in front and back, and the air outlets of the plurality of air supply ducts 10 pass through the side wall of the dust collecting box 1 and are connected with the air inlet of the blower, thereby ensuring that after the dust collecting bag 6 in the bag dust collector filters the gypsum powder, the clean air in the dust collecting bag 6 is discharged, thereby improving the dust collecting efficiency of the dust collecting bag 6, and also ensuring the dust collecting bag's demand for the required backblowing wind force, thereby avoiding a large amount of material remaining on the dust collecting bag 6 due to insufficient backblowing pressure, thereby affecting the dust collecting efficiency of the bag dust collector used to collect materials with higher viscosity.

[0038] Example 2

[0039] On the basis of Example 1, Figure 1-Figure 2 As shown, the beating mechanism 7 includes a plurality of beating components, and the plurality of beating components are installed on the side wall of the dust box 1 at a distance from each other.

[0040] The hammering assembly includes a rotating shaft 11, one end of which rotates through the side wall of the dust box 1, a rotating frame 12 is fixedly connected to one end of the rotating shaft 11 in the second cavity 5, and the other end of the rotating shaft 11 is fixedly connected to a first transmission pulley 13;

[0041] A plurality of first transmission pulleys 13 are provided, and adjacent pairs of the plurality of first transmission pulleys 13 are connected by first transmission belts 14 .

[0042] Preferably, the stirring mechanism 8 includes a mounting seat 15, the mounting seat 15 is fixedly mounted on the side wall of the support frame 2, the drive motor 16 is fixedly mounted on the mounting seat 15, and a drive shaft 17 is fixedly mounted on the output shaft of the drive motor 16, one end of the drive shaft 17 rotates through the side wall of the dust box 1 and a stirring frame 18 is fixedly mounted thereon, and one end of the stirring frame 18 rotates through the inner wall of the dust box 1 and a second transmission pulley 19 is fixedly mounted thereon, and the second transmission pulley 19 is connected to the first transmission pulley 13 through a second transmission belt 20.

[0043] The working principle and beneficial effects of the above technical solution are:

[0044] The above-mentioned beating assembly includes a rotating shaft 11, one end of the rotating shaft 11 rotates and penetrates the side wall of the dust box 1, a rotating frame 12 is fixedly connected to one end of the rotating shaft 11 in the second cavity 5, and the other end of the rotating shaft 11 is fixedly connected to a first transmission pulley 13, and a plurality of first transmission pulleys 13 are connected to each other by a first transmission belt 14, so that multiple rotating frames 12 beat the dust collecting bag 6 in the second cavity 5; secondly, the mounting seat 15 of the stirring mechanism 8 is fixedly mounted on the side wall of the support frame 2, and the driving motor 16 is fixedly mounted on the mounting seat 15, and the driving motor A driving shaft 17 is fixedly installed on the output shaft of 16, one end of the driving shaft 17 rotates through the side wall of the dust box 1 to fix a stirring frame 18, and one end of the stirring frame 18 rotates through the inner wall of the dust box 1 to fix a second transmission pulley 19, the second transmission pulley 19 is connected to the first transmission pulley 13 through a second transmission belt 20, and the rotation of the stirring frame 18 and the second transmission pulley 19 are simultaneously practiced by the driving motor 16, so that a plurality of first transmission pulleys 13 connected to the second transmission pulley through the second transmission belt 20 can be rotated, thereby reducing the required transmission motor and reducing energy waste.

[0045] The working mode of the dust bag auxiliary cleaning device is as follows: first, the second transmission belt 20 is used to connect the second transmission pulley 19 at the head end of the stirring frame 18 with the first transmission pulley 13, and the rotation of the driving motor 16 is used to drive the second transmission pulley 19 to rotate, and at the same time, the stirring frame 18 is rotated. When the stirring frame 18 rotates, the materials adhering to the warehouse wall are first broken up to allow the materials to flow smoothly, and then the second transmission belt 20 drives several first transmission pulleys 13 of the upper rotating frame 12 to achieve linkage; the rotating frame 12 rotates to shake the bag to make the materials adhering to the bag fall off, and the rotating frame 12 is installed at intervals so that the dust bag 6 has a certain movable space to avoid deformation of the dust bag 6 skeleton during continuous installation and operation.

[0046] The above-mentioned dust bag auxiliary cleaning device realizes timely cleaning of the dust bag 6 by using the beating mechanism 7 and the stirring mechanism 8. The device has a simple structure. The dust bag 6 is shaken by the rotating frame 12 to avoid the bag sticking to the material and agglomeration caused by insufficient back-blowing pressure or excessive material viscosity. The rotating frame 12 is driven by the driving motor 16 through the belt transmission method, reducing the required transmission motor. When the large pieces of material adhered to the dust bag 6 fall off, they are broken up by the mixer to avoid the material jamming caused by falling directly on the rotary discharger, thereby ensuring the stability of the gypsum powder flow.

[0047] Example 3

[0048] The auxiliary cleaning device for the dust bag 6 described in Example 1 or 2 further includes a dust removal performance detection device, which is used for the auxiliary cleaning device for the dust bag 6 to detect the state of the dust removal treatment of the dust bag 6 in the dust box 1, and the dust removal performance detection device includes:

[0049] A densitometer, used to detect the density of the gypsum powder transported inside the feeding pipe 9;

[0050] A flow rate sensor, used to detect the flow rate of the gypsum powder transported inside the feeding pipe 9;

[0051] A temperature sensor, used to detect the temperature inside the dust box 1 when the dust collecting bag 6 is collecting dust;

[0052] A pressure sensor is used to detect the pressure inside the dust box 1 when the dust collecting bag 6 is collecting dust;

[0053] A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the temperature sensor, the pressure sensor and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, the temperature sensor and the pressure sensor.

[0054] Preferably, the controller controls the alarm to work based on the density meter, flow rate sensor, temperature sensor and pressure sensor, including:

[0055] The dust collection rate of the dust bag 6 after the dust bag 6 is cleaned by the dust bag auxiliary cleaning device is calculated according to the formula and the detection values ​​obtained by the density meter, the flow rate sensor, the temperature sensor and the pressure sensor. The controller compares the dust collection rate Z of the dust bag 6 after the dust bag 6 is cleaned by the current dust bag auxiliary cleaning device with the preset dust collection rate range of the dust bag 6. If the dust collection rate Z of the dust bag 6 after the dust bag 6 is cleaned by the current dust bag auxiliary cleaning device is not within the preset dust collection rate range of the dust bag 6, the controller controls the alarm to sound an alarm:

[0056]

[0057] Among them, Z is the dust collection rate of the dust bag 6 after the dust bag auxiliary cleaning device cleans the dust bag 6, ρ is the detection value of the density of the gypsum powder transported inside the feeding pipe 9 by the densitometer, v is the detection value of the flow rate of the gypsum powder transported inside the feeding pipe 9 by the flow rate sensor, S is the cross-sectional area of ​​the feeding pipe 9, T is the detection value of the internal temperature of the dust box 1 when the dust bag 6 is collecting dust by the temperature sensor, P is the detection value of the internal pressure of the dust box 1 when the dust bag 6 is collecting dust by the pressure sensor, A is the cross-sectional area of ​​the dust bag 6, n is the number of dust bags 6 in the dust box 1, and R is the airflow constant in the dust box 1 (generally taken as 0.287 kJ / kg·K).

[0058] The beneficial effects of the above technical solution are as follows: first, according to the formula and the detection values ​​of the density meter, the flow rate sensor, the temperature sensor and the pressure sensor, the dust collection rate of the dust bag 6 after the dust bag 6 is cleaned by the auxiliary cleaning device of the dust bag 6 is calculated, and the density of the gypsum powder transported inside the feeding pipe 9, the flow rate of the gypsum powder transported inside the feeding pipe 9, the cross-sectional area of ​​the feeding pipe 9, the temperature inside the dust box 1 when the dust bag 6 collects dust, the pressure inside the dust box 1 when the dust bag 6 collects dust, the cross-sectional area of ​​the dust bag 6, the number of dust bags 6 in the dust box 1, and the airflow constant in the dust box 1 are comprehensively considered, so that the calculation result is more accurate and reliable;

[0059] The controller controls the operation of the density meter, flow rate sensor, temperature sensor, pressure sensor and alarm. When the dust collection rate of the dust bag 6 is not within the preset dust collection rate range of the dust bag 6 after the actual dust bag auxiliary cleaning device cleans the dust bag 6, the controller controls the alarm to sound an alarm, thereby reminding the staff to promptly check the dust bags 6 in the dust box 1, and perform maintenance on the dust bags 6 according to the actual inspection results to maintain the use requirements of the dust bags 6, while ensuring the normal working state of the entire bag dust collector and the dust collection efficiency of the dust bags 6, and effectively improving the service life of the dust bags 6, further meeting the use requirements of the bag dust collector equipment for operational reliability and stability, and by real-time monitoring of the working state of the dust bags 6 during operation, not only the efficiency of the dust bag auxiliary cleaning device in cleaning the dust bags 6 is met, but also it is ensured that the dust bags 6 can be quickly discovered and replaced in time after a failure occurs.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust bag auxiliary cleaning device, characterized in that: The invention comprises a dust box (1), wherein the dust box (1) is fixedly mounted on a support frame (2), and the dust box (1) is divided into a first cavity (4) and a second cavity (5) by a partition (3), wherein an air supply assembly is arranged in the first cavity (4), and a plurality of dust collecting bags (6) are arranged in the second cavity (5), and the tops of the plurality of dust collecting bags (6) are mounted on the bottom of the partition (3), a beating mechanism (7) is arranged on the side wall of the dust box (1), and a stirring mechanism (8) is arranged at the lower part of the dust box (1).

2. The dust bag auxiliary cleaning device according to claim 1, characterized in that: A feeding pipe (9) is fixedly mounted on the outer side wall of the dust collecting box (1), and an outlet of the feeding pipe (9) is in communication with the second cavity (5).

3. The dust bag auxiliary cleaning device according to claim 1, characterized in that: The air supply assembly comprises a plurality of air supply ducts (10), the plurality of air supply ducts (10) being arranged in the first cavity (4) at intervals in front and back, and the air outlets of the plurality of air supply ducts (10) passing through the side wall of the dust collecting box (1) and being connected to the air inlet of the blower.

4. The dust bag auxiliary cleaning device according to claim 1, characterized in that: The beating mechanism (7) comprises a plurality of beating components, and the plurality of beating components are installed on the side wall of the dust collecting box (1) at a distance from each other. The beating assembly comprises a rotating shaft (11), one end of which rotates through the side wall of the dust box (1), a rotating frame (12) is fixedly connected to one end of the rotating shaft (11) in the second cavity (5), and the other end of the rotating shaft (11) is fixedly connected to a first transmission pulley (13); A plurality of first transmission pulleys (13), wherein adjacent pairs of the plurality of first transmission pulleys (13) are connected via a first transmission belt (14).

5. The dust bag auxiliary cleaning device according to claim 1, characterized in that: The stirring mechanism (8) comprises a mounting seat (15), wherein the mounting seat (15) is fixedly mounted on the side wall of the support frame (2), a driving motor (16) is fixedly mounted on the mounting seat (15), and a driving shaft (17) is fixedly mounted on the output shaft of the driving motor (16), one end of the driving shaft (17) is rotatably passed through the side wall of the dust collecting box (1) and a stirring frame (18) is fixedly mounted thereon, and one end of the stirring frame (18) is rotatably passed through the inner side wall of the dust collecting box (1) and a second transmission pulley (19) is fixedly mounted thereon, and the second transmission pulley (19) is connected to the first transmission pulley (13) via a second transmission belt (20).

6. The dust bag auxiliary cleaning device according to claim 1, characterized in that: It also includes a dust collection performance detection device, which is used for the dust collection bag auxiliary cleaning device to detect the state of the dust collection bag (6) in the dust collection box (1) performing dust collection processing, and the dust collection performance detection device includes: A densitometer, used to detect the density of the gypsum powder transported inside the feeding pipe (9); A flow rate sensor, used to detect the flow rate of the gypsum powder transported inside the feeding pipe (9); A temperature sensor, used to detect the temperature inside the dust collecting box (1) when the dust collecting bag (6) is collecting dust; A pressure sensor, used to detect the pressure inside the dust collecting box (1) when the dust collecting bag (6) is collecting dust; A controller and an alarm, wherein the controller is electrically connected to the density meter, the flow rate sensor, the temperature sensor, the pressure sensor and the alarm, and the controller controls the alarm to work based on the density meter, the flow rate sensor, the temperature sensor and the pressure sensor.

7. The dust bag auxiliary cleaning device according to claim 6, characterized in that: The controller controls the alarm based on the density meter, flow rate sensor, temperature sensor and pressure sensor to work as follows: The dust collection rate of the dust bag after the dust bag is cleaned by the dust bag auxiliary cleaning device is calculated according to the formula and the detection values ​​obtained by the density meter, the flow rate sensor, the temperature sensor and the pressure sensor. The controller compares the dust collection rate Z of the dust bag (6) after the dust bag auxiliary cleaning device currently cleans the dust bag (6) with the preset dust collection rate range of the dust bag (6). If the dust collection rate Z of the dust bag (6) after the dust bag auxiliary cleaning device currently cleans the dust bag (6) is not within the preset dust collection rate range of the dust bag (6), the controller controls the alarm to sound an alarm: Wherein, Z is the dust collection rate of the dust bag (6) after the dust bag (6) is cleaned by the dust bag auxiliary cleaning device, ρ is the detection value of the density of the gypsum powder transported inside the feeding pipe (9) by the densitometer, v is the detection value of the flow rate of the gypsum powder transported inside the feeding pipe (9) by the flow rate sensor, S is the cross-sectional area of ​​the feeding pipe (9), T is the detection value of the temperature inside the dust box (1) when the dust bag (6) is collecting dust by the temperature sensor, P is the detection value of the pressure inside the dust box (1) when the dust bag (6) is collecting dust by the pressure sensor, A is the cross-sectional area of ​​the dust bag (6), n is the number of dust bags (6) in the dust box (1), and R is the air flow constant in the dust box (1).

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