Dust collection structure of gypsum powder production line

Abstract

The utility model relates to a dust collection structure of a gypsum powder production line, and belongs to the technical field of gypsum powder production. Comprising a left dust collecting cover and a right dust collecting cover which are oppositely arranged, the upper portions of the left dust collecting cover and the right dust collecting cover are connected through a top plate, the bottoms of the left dust collecting cover and the right dust collecting cover are connected through a bottom plate, and the top plate, the bottom plate, the left dust collecting cover and the right dust collecting cover define a channel for a roller conveyor to penetrate through. An upper rotary air injection dust removal device is arranged above the conveying path of the roller conveyor and rotationally installed on the inner side face of the top plate, and a driving mechanism for driving the upper rotary air injection dust removal device to rotate in a reciprocating mode is installed on the upper surface of the top plate. The gypsum powder finished product packaging bag stacking and transferring device has the advantages that when a packaging bag filled with gypsum powder finished products passes through the lower portion of the upper rotary air injection and dust removal device, powder on the surface of the gypsum powder finished product packaging bag can be blown away through air sprayed out of the upper rotary air injection and dust removal device, and then stacking and transferring are conducted.

Description

Technical Field

[0001] This utility model relates to a dust collection structure for a gypsum powder production line, belonging to the field of gypsum powder production technology. Background Technology

[0002] Gypsum powder, a widely used mineral powder, is professionally known as calcium sulfate. It demonstrates significant effects in various fields, including construction, medicine, and industry. However, the production process of gypsum powder inevitably generates dust in the air due to its granular form. Excessive dust in the air negatively impacts the air quality and poses health risks to workers.

[0003] The utility model patent with patent number 202222975339.6 discloses a gypsum powder production line, including a gypsum powder production mechanism and a heating mechanism. The gypsum powder production mechanism includes a vibrator, a metering belt, a first conveyor belt, a dispersant, a second conveyor belt, a dryer, a drying conveyor, an intermediate silo feed elevator, a linear screen, an intermediate silo, a fluidized bed furnace feed elevator, a fluidized bed furnace, a fluidized bed furnace discharge elevator, a cooling silo, a ball mill, a discharge screw conveyor, a finished product conveyor, a finished product silo feed elevator, and a finished product silo.

[0004] Although the aforementioned patent can achieve the production of gypsum powder and dust collection during the production process, the current technology is not comprehensive and has the following drawbacks: After the gypsum powder is bagged, if there is no corresponding device to remove the dust adhering to the packaging bag during the transfer and stacking of the bagged gypsum powder, the dust on the packaging bag is easy to float in the air and be absorbed by the operator, which will also be detrimental to human health and affect the operating environment.

[0005] To solve one of the above problems, a dust collection structure for a gypsum powder production line is urgently needed. Utility Model Content

[0006] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is: how to design the upper rotating jet dust removal device into a reciprocating rotating structure to thoroughly clean the target area, and how to make the structure simple and easy to install. Compared with the traditional fixed-position nozzle cleaning and cleaning, it is more flexible, has fewer dead corners, and improves the efficiency of cleaning and cleaning. Therefore, a dust collection structure for a gypsum powder production line is provided.

[0007] The dust collection structure of the gypsum powder production line of this utility model includes a left dust collection hood and a right dust collection hood arranged opposite to each other. The upper parts of the left dust collection hood and the right dust collection hood are connected by a top plate, and the bottom parts of the left dust collection hood and the right dust collection hood are connected by a bottom plate. The top plate, the bottom plate, the left dust collection hood, and the right dust collection hood form a channel for the roller conveyor to pass through. An upper rotating jet dust removal device is provided above the conveying path of the roller conveyor. The upper rotating jet dust removal device is rotatably installed on the inner side of the top plate. A drive mechanism for driving the upper rotating jet dust removal device to reciprocate is installed on the upper surface of the top plate.

[0008] The roller conveyor is used to transfer bagged gypsum powder products. The packaging bags containing gypsum powder products pass under the upper rotary air jet dust removal device. The gas sprayed by the upper rotary air jet dust removal device can blow away the powder on the surface of the gypsum powder packaging bags, and then they are stacked and transferred.

[0009] The dust-laden gas is drawn in by the left and right dust collection hoods on both sides of the roller conveyor, and flows through the dust suction branch pipe A and dust suction branch pipe B to the exhaust main pipe. The exhaust main pipe transports the dust-laden gas to the existing dust removal and filtration module for centralized treatment, which can effectively reduce dust pollution in the gypsum powder packaging workshop, effectively protect the environment and the health of workers, and the dust removal system has a simple structure, which reduces production costs.

[0010] Furthermore, the rotating jet dust removal device is designed with a reciprocating rotation structure, ensuring comprehensive cleaning of the target area. Its simple structure makes it easy to install. Compared to traditional fixed-position nozzle cleaning and blowing, it is more flexible, has fewer blind spots, and improves cleaning and blowing efficiency.

[0011] Preferably, the driving mechanism includes a vertically arranged telescopic cylinder, the cylinder body of which is fixedly mounted on the top plate, the telescopic end of which passes through the top plate and is connected to the driving rack, and the driving rack and the telescopic rod of the telescopic cylinder are coaxially arranged.

[0012] It uses a simple telescopic cylinder as a power source to drive the upper rotating jet dust removal device to rotate. The structure is simple and easy to install.

[0013] Preferably, the upper rotary jet dust removal device includes an air distribution box A with an inner cavity and support plates A and B spaced apart. Connecting seats A and B are respectively provided at both ends of the air distribution box A. Rotating shafts A and B are respectively fixedly installed on connecting seats A and B, and are coaxially arranged. Connecting seats A and B are rotatably mounted on support plates A and B, respectively. The tops of support plates A and B are fixed to the lower surface of a top plate. One end of the rotating shaft A is provided with a driven gear connected to a drive rack and pinion. Multiple sets of jet nozzles A, communicating with the inner cavity, are spaced apart on the lower surface of the air distribution box A. An air inlet A, communicating with the inner cavity, is provided on the upper surface of the air distribution box A. A flexible air supply pipe A is connected to the air inlet A, providing high-pressure gas to the inner cavity of the air distribution box A.

[0014] Compared to traditional fixed-position nozzle cleaning and blowing, it is more flexible, has fewer blind spots, and improves the efficiency of cleaning and blowing.

[0015] Preferably, the other end of the flexible air supply pipe A is connected to an air supply source, which can be an air pump. The air pump injects high-pressure gas into the air distribution box A through the flexible air supply pipe A. The high-pressure gas is then ejected through the air nozzle A. The high-pressure gas ejected through the air nozzle A can blow away the powder on the surface of the finished gypsum powder packaging bag conveyed from the roller conveyor, and then it can be stacked and transferred.

[0016] Preferably, the jet nozzles A are provided in 5-7 groups and are arranged in a straight line at equal intervals.

[0017] Preferably, a lower rotary jet dust collector is provided below the conveying path of the roller conveyor, and the lower rotary jet dust collector is rotatably mounted on the inner side of the base plate.

[0018] Preferably, the gases emitted by the upper and lower rotary jet dust removal devices blow away the powder on the upper and lower surfaces of the finished gypsum powder packaging bags, respectively, before stacking and transferring, thereby improving cleaning efficiency.

[0019] Preferably, the lower rotary jet dust removal device includes an air distribution box B with an inner cavity and support plates C and D spaced apart. Connecting seats C and D are respectively provided at both ends of the air distribution box B. Rotating shafts C and D are respectively fixedly installed on connecting seats C and D, and are coaxially arranged. Connecting seats C and D are rotatably mounted on support plates C and D, respectively. Support plates C and D are fixed to the upper surface of a base plate. Multiple sets of jet nozzles B communicating with the inner cavity are spaced apart on the upper surface of the air distribution box B. An air inlet B communicating with the inner cavity is provided on the lower surface of the air distribution box B. A flexible air supply pipe B is connected to the air inlet B, providing high-pressure gas to the inner cavity of the air distribution box B.

[0020] Preferably, the other end of the flexible air supply pipe B is connected to an air supply source, which can be an air pump. The air pump injects high-pressure gas into the air distribution box B through the flexible air supply pipe B. The high-pressure gas is then ejected through the nozzle B. The high-pressure gas ejected through the nozzle B can blow away the powder on the lower surface of the finished gypsum powder packaging bag conveyed from the roller conveyor, and then it can be stacked and transferred.

[0021] Preferably, one end of the rotating shaft D is provided with a synchronous pulley B, and a synchronous pulley A is provided on the rotating shaft B. The synchronous pulley B and the synchronous pulley A are connected by a synchronous belt drive.

[0022] Preferably, it also includes a suction branch pipe A connected to the inner cavity of the left dust collection hood and a suction branch pipe B connected to the inner cavity of the right dust collection hood. The other ends of the suction branch pipe A and the suction branch pipe B are respectively connected to the first and second interfaces of the three-way connector. The third interface of the three-way connector is connected to the exhaust main pipe. The other end of the exhaust main pipe is provided with a negative pressure interface, and the dust removal and filtration module is connected after the negative pressure interface.

[0023] Preferably, the dust removal and filtration module is an existing mechanism, including a cyclone separator, a bag filter, and an induced draft fan. The air inlet of the cyclone separator is connected to a negative pressure interface, the air outlet of the cyclone separator is connected to the air inlet of the bag filter through a first pipe, the air outlet of the bag filter is connected to the air inlet of the induced draft fan through a second pipe, and the induced draft fan is connected to an exhaust pipe.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The dust collection structure of the gypsum powder production line described in this utility model allows the gas emitted by the upper rotating jet dust collector to blow away the powder on the surface of the gypsum powder packaging bag when the packaging bag containing the finished gypsum powder passes under the upper rotating jet dust collector, before it is stacked and transferred.

[0026] The dust collection structure of the gypsum powder production line described in this utility model designs the upper rotating jet dust removal device as a reciprocating rotating structure, which can thoroughly blow the target area. The structure is simple and easy to install. Compared with the traditional fixed-position nozzle cleaning and blowing, it is more flexible, has fewer dead corners, and improves the efficiency of cleaning and blowing.

[0027] The dust collection structure of the gypsum powder production line described in this utility model uses a simple telescopic cylinder as a power source to drive the upper rotating jet dust removal device to rotate. The structure is simple and easy to install. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the rotating jet dust removal device of this utility model;

[0031] Figure 3 This is a schematic diagram of the structure of the rotary jet dust removal device of this utility model;

[0032] In the diagram: 1. Top plate; 2. Bottom plate; 3. Left dust collection hood; 4. Right dust collection hood; 5. Support leg; 6. Suction branch pipe A; 7. Suction branch pipe B; 8. Exhaust main pipe; 9. Negative pressure interface; 10. Upper rotary jet dust collector; 10.1. Support plate A; 10.2. Support plate B; 10.3. Connecting seat A; 10.4. Connecting seat B; 10.5. Rotating shaft A; 10.6. Rotating shaft B; 10.7. Driven gear; 10.8. Air distribution box A; 10.9. Jet nozzle A; 10.10. Flexible air supply pipe A; 11. Lower rotary jet dust collector; 11.1. Support plate C; 11.2. Support plate D; 11.3. Connecting seat C; 11.4. Connecting seat D; 11.5. Rotating shaft C; 11.6. Rotating shaft D; 11.7. Synchronous pulley B; 11.8. Air distribution box B; 11.9. Jet nozzle B. 11.10 Flexible air supply pipe B 12. Roller conveyor 13. Telescopic cylinder 14. Drive rack 15. Synchronous pulley A 16. Synchronous belt. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings: The present invention will be further described below through specific embodiments, but it is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0034] Example 1, such as Figure 1-2 As shown, the dust collection structure of the gypsum powder production line includes a left dust collection hood 3 and a right dust collection hood 4 arranged opposite to each other. The upper parts of the left dust collection hood 3 and the right dust collection hood 4 are connected by a top plate 1, and the bottom parts of the left dust collection hood 3 and the right dust collection hood 4 are connected by a bottom plate 2. The top plate 1, the bottom plate 2, the left dust collection hood 3, and the right dust collection hood 4 form a channel through which the roller conveyor 12 passes. An upper rotary jet dust removal device 10 is provided above the conveying path of the roller conveyor 12. The upper rotary jet dust removal device 10 is rotatably installed on the inner side of the top plate 1. A drive mechanism for driving the upper rotary jet dust removal device 10 to reciprocate is installed on the upper surface of the top plate 1.

[0035] The roller conveyor 12 is used to transfer bagged gypsum powder finished products. The packaging bags containing gypsum powder finished products pass under the upper rotary jet dust removal device 10. The gas sprayed by the upper rotary jet dust removal device 10 can blow away the powder on the surface of the gypsum powder finished product packaging bags, and then they are stacked and transferred.

[0036] The dust-laden gas is drawn in by the left dust collection hood 3 and the right dust collection hood 4 on both sides of the roller conveyor 12, and flows to the exhaust main pipe 8 through the dust suction branch pipe A6 and the dust suction branch pipe B7. The exhaust main pipe 8 transports the dust-laden gas to the existing dust removal and filtration module for centralized treatment, which can effectively reduce dust pollution in the gypsum powder packaging workshop, effectively protect the environment and the health of the workers, and the dust removal system has a simple structure, which reduces production costs.

[0037] Furthermore, the upper rotating jet dust removal device 10 is designed with a reciprocating rotating structure to thoroughly clean the target area. Its simple structure makes it easy to install. Compared to traditional fixed-position nozzle cleaning and blowing, it is more flexible, has fewer blind spots, and improves cleaning and blowing efficiency.

[0038] Example 2, as Figure 1-2As shown, the dust collection structure of the gypsum powder production line includes a left dust collection hood 3 and a right dust collection hood 4 arranged opposite to each other. The upper parts of the left dust collection hood 3 and the right dust collection hood 4 are connected by a top plate 1, and the bottom parts of the left dust collection hood 3 and the right dust collection hood 4 are connected by a bottom plate 2. The top plate 1, the bottom plate 2, the left dust collection hood 3, and the right dust collection hood 4 form a channel through which the roller conveyor 12 passes. An upper rotary jet dust removal device 10 is provided above the conveying path of the roller conveyor 12. The upper rotary jet dust removal device 10 is rotatably installed on the inner side of the top plate 1. A drive mechanism for driving the upper rotary jet dust removal device 10 to reciprocate is installed on the upper surface of the top plate 1.

[0039] Furthermore, the driving mechanism includes a vertically arranged telescopic cylinder 13. The cylinder body of the telescopic cylinder 13 is fixedly mounted on the top plate 1. The telescopic end of the telescopic cylinder 13 passes through the top plate 1 and is connected to the driving rack 14. The driving rack 14 and the telescopic rod of the telescopic cylinder 13 are coaxially arranged. Using a simple telescopic cylinder 13 as the power source to drive the upper rotating jet dust removal device 10 to rotate results in a simple structure and easy installation.

[0040] Further, the upper rotary jet dust removal device 10 includes an air distribution box A10.8 with an inner cavity and support plates A10.1 and B10.2 spaced apart. Connecting seats A10.3 and B10.4 are respectively provided at both ends of the air distribution box A10.8. Rotating shafts A10.5 and B10.6 are respectively fixedly mounted on connecting seats A10.3 and B10.4. Rotating shafts A10.5 and B10.6 are coaxially arranged. Connecting seats A10.3 and B10.4 are rotatably mounted on support plates A10.1 and B10.2 respectively. On 10.2, the tops of the support plate A10.1 and the support plate B10.2 are both fixed to the lower surface of the top plate 1. One end of the rotating shaft A10.5 is provided with a driven gear 10.7 that is connected to the drive rack 14. The lower surface of the air distribution box A10.8 is provided with multiple sets of air nozzles A10.9 that communicate with its inner cavity. The upper surface of the air distribution box A10.8 is provided with an air inlet A that communicates with its inner cavity. A flexible air supply pipe A10.10 is connected to the air inlet A. The flexible air supply pipe A10.10 provides high-pressure gas to the inner cavity of the air distribution box A10.8.

[0041] By controlling the extension of the telescopic cylinder 13, the drive rack 14 meshes with the driven gear 10.7, driving the rotating shaft A10.5 to rotate forward. The rotating shaft A10.5, through the connecting seat A10.3, drives the air distribution box A10.8 to rotate around the center line of the rotating shaft A10.5, and the air distribution box A10.8 drives the air nozzle A10.9 to rotate. By controlling the retraction of the telescopic cylinder 13, the drive rack 14 meshes with the driven gear 10.7, driving the rotating shaft A10.5 to rotate in the opposite direction. The rotating shaft A10.5, through the connecting seat A10.3, drives the air distribution box A10.8 to rotate in the reverse direction around the center line of the rotating shaft A10.5, and the air distribution box A10.8 drives the air nozzle A10.9 to rotate. Compared with traditional fixed-position nozzle cleaning and blowing, this method is more flexible, has fewer dead angles, and improves the efficiency of cleaning and blowing.

[0042] The other end of the flexible air supply pipe A10.10 is connected to an air supply source, which can be an air pump. The air pump injects high-pressure gas into the air distribution box A10.8 through the flexible air supply pipe A10.10. The high-pressure gas is then ejected through the nozzle A10.9. The high-pressure gas ejected through the nozzle A10.9 can blow away the powder on the surface of the finished gypsum powder packaging bags conveyed from the roller conveyor 12, and then the bags are stacked and transferred. The air distribution box A10.8 can be made of square tubing. A set of end plates is welded to both ends of the square tubing to form an air storage cavity, and then mounting holes for the nozzle A are made.

[0043] Furthermore, the jet nozzles A10.9 are provided in 5-7 groups, and are arranged in a straight line at equal intervals.

[0044] Furthermore, a lower rotary jet dust removal device 11 is provided below the conveying path of the roller conveyor 12, and the lower rotary jet dust removal device 11 is rotatably installed on the inner side of the base plate 2.

[0045] Furthermore, the gases emitted by the upper rotating jet dust removal device 10 and the lower rotating jet dust removal device 11 respectively blow away the powder on the upper and lower surfaces of the finished gypsum powder packaging bag, and then the bag is stacked and transferred to improve cleaning efficiency.

[0046] Furthermore, referring to Figure 3The lower rotary jet dust removal device 11 includes an air distribution box B11.8 with an inner cavity and support plates C11.1 and D11.2 spaced apart. Connecting seats C11.3 and D11.4 are respectively provided at both ends of the air distribution box B11.8. Rotating shafts C11.5 and D11.6 are respectively fixedly installed on connecting seats C11.3 and D11.4. Rotating shafts C11.5 and D11.6 are coaxially arranged. Connecting seats C11.3 and D11.4 are respectively... The air distribution box B11.8 is rotatably mounted on support plates C11.1 and D11.2, which are fixed to the upper surface of the base plate 2. Multiple sets of air nozzles B11.9 communicating with its inner cavity are spaced apart on the upper surface of the air distribution box B11.8. An air inlet B communicating with its inner cavity is provided on the lower surface of the air distribution box B11.8. A flexible air supply pipe B11.10 is connected to the air inlet B, providing high-pressure gas to the inner cavity of the air distribution box B11.8.

[0047] Furthermore, the other end of the flexible air supply pipe B11.10 is connected to an air supply source, which can be an air pump. The air pump injects high-pressure gas into the air distribution box B11.8 through the flexible air supply pipe B11.10. The high-pressure gas is then ejected through the nozzle B11.9. The high-pressure gas ejected through the nozzle B11.9 can blow away the powder on the lower surface of the finished gypsum powder packaging bag conveyed from the roller conveyor 12, and then it can be stacked and transferred.

[0048] Furthermore, one end of the rotating shaft D11.6 is provided with a synchronous pulley B11.7, and a synchronous pulley A15 is provided on the rotating shaft B10.6. The synchronous pulley B11.7 and the synchronous pulley A15 are connected by a synchronous belt 16.

[0049] Furthermore, the upper rotating jet dust removal device 10 can drive the lower rotating jet dust removal device 11 to reciprocate. Specifically, the rotation of the rotating shaft B10.6 drives the synchronous pulley A15 to rotate, the synchronous pulley A15 drives the synchronous pulley B11.7 to rotate through the synchronous belt 16, and the synchronous pulley B11.7 drives the air distribution box B11.8 to rotate through the rotating shaft D11.6 and the connecting seat D11.4.

[0050] Furthermore, it also includes a suction branch pipe A6 connected to the inner cavity of the left dust collection hood 3 and a suction branch pipe B7 connected to the inner cavity of the right dust collection hood 4. The other ends of the suction branch pipe A6 and the suction branch pipe B7 are respectively connected to the first and second interfaces of the three-way connector. The third interface of the three-way connector is connected to the exhaust main pipe 8. The other end of the exhaust main pipe 8 is provided with a negative pressure interface 9. The dust removal and filtration module is connected after the negative pressure interface 9.

[0051] Furthermore, the dust removal and filtration module is an existing mechanism, including a cyclone separator, a bag filter, and an induced draft fan. The air inlet of the cyclone separator is connected to the negative pressure interface 9, the air outlet of the cyclone separator is connected to the air inlet of the bag filter through a first pipe, the air outlet of the bag filter is connected to the air inlet of the induced draft fan through a second pipe, and the induced draft fan is connected to an exhaust pipe.

[0052] The dust collection structure of the gypsum powder production line described in this utility model allows the gas emitted by the upper rotating jet dust collector to blow away the powder on the surface of the gypsum powder packaging bag when the packaging bag containing the finished gypsum powder passes under the upper rotating jet dust collector, before it is stacked and transferred.

[0053] The dust collection structure of the gypsum powder production line described in this utility model designs the upper rotating jet dust removal device as a reciprocating rotating structure, which can thoroughly blow the target area. The structure is simple and easy to install. Compared with the traditional fixed-position nozzle cleaning and blowing, it is more flexible, has fewer dead corners, and improves the efficiency of cleaning and blowing.

[0054] The dust collection structure of the gypsum powder production line described in this utility model uses a simple telescopic cylinder as a power source to drive the upper rotating jet dust removal device to rotate. The structure is simple and easy to install.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0056] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A dust collection structure of a gypsum powder production line, comprising a left dust hood and a right dust hood arranged oppositely, characterized in that: The upper part of the left dust cover and the right dust cover is connected by a top plate, and the bottom part of the left dust cover and the right dust cover is connected by a bottom plate, the top plate, the bottom plate, the left dust cover and the right dust cover enclose a channel for the roller conveyor to pass through, the upper rotary air jet dust removal device is arranged above the roller conveyor conveying path, the upper rotary air jet dust removal device is rotatably installed on the inner side of the top plate, and the upper surface of the top plate is provided with a driving mechanism for driving the upper rotary air jet dust removal device to rotate reciprocatingly.

2. The dust collection structure of the gypsum powder production line according to claim 1, characterized in that, The driving mechanism comprises a vertically arranged telescopic cylinder, the cylinder body of the telescopic cylinder is fixedly installed on the top plate, and the telescopic end of the telescopic cylinder is connected with the driving rack through the top plate.

3. The dust collection structure of the gypsum powder production line according to claim 2, characterized in that, The upper rotary air jet dust removal device comprises a gas distribution box A with an inner cavity and spaced support plates A and B, both ends of the gas distribution box A are provided with connecting seats A and B respectively, rotating shafts A and B are fixedly installed on the connecting seats A and B respectively, the rotating shafts A and B are coaxially arranged, the connecting seats A and B are rotatably installed on the support plates A and B respectively, the top parts of the support plates A and B are fixed to the lower surface of the top plate, one end of the rotating shaft A is provided with a driven gear in transmission connection with the driving rack, the lower surface of the gas distribution box A is provided with a plurality of groups of air jet nozzles A in communication with the inner cavity thereof, the upper surface of the gas distribution box A is provided with an air inlet A in communication with the inner cavity thereof, the air inlet A is connected with a flexible air supply pipe A, and the flexible air supply pipe A provides high-pressure gas for the inner cavity of the gas distribution box A.

4. The dust collection structure for a gypsum powder production line according to any one of claims 1 to 3, characterized in that, The lower rotary air jet dust removal device is arranged below the roller conveyor conveying path and is rotatably installed on the inner side of the bottom plate.

5. The dust collection structure of the gypsum powder production line according to claim 4, characterized in that, The lower rotary air jet dust removal device comprises a gas distribution box B with an inner cavity and spaced support plates C and D, both ends of the gas distribution box B are provided with connecting seats C and D respectively, rotating shafts C and D are fixedly installed on the connecting seats C and D respectively, the rotating shafts C and D are coaxially arranged, the connecting seats C and D are rotatably installed on the support plates C and D respectively, and the support plates C and D are fixed to the upper surface of the bottom plate.

6. The dust collection structure of the gypsum powder production line according to claim 5, characterized in that, One end of the rotating shaft D is provided with a synchronous pulley B, the rotating shaft B is provided with a synchronous pulley A, and the synchronous pulley B and the synchronous pulley A are in transmission connection through a synchronous belt.

7. The dust collection structure of the gypsum powder production line according to claim 6, characterized in that, Also include with the left side dust cover inner cavity communicating dust suction branch A, with the right side dust cover inner cavity communicating dust suction branch B, the other end of the dust suction branch A, dust suction branch B are connected to the first interface and the second interface of the three-way joint respectively, the third interface of the three-way joint is connected with the exhaust main pipe, the other end of the exhaust main pipe is provided with a negative pressure interface, the negative pressure interface is connected with a dust removal filter module.

Images