A device for coating sand dedusting

Abstract

The utility model discloses a device for film coated sand dust removal, including film coated sand dust removal box, the inside fixed connection of film coated sand dust removal box has Y type baffle, and Y type baffle divides the inside of film coated sand dust removal box and separates into two dust removal cavities and an air inlet chamber, be provided with two air vents on Y type baffle, and the air inlet chamber is communicated with two dust removal cavities through two air vents respectively, and the inside of two dust removal cavities can detachable installation has dust removal net, and the side end of film coated sand dust removal box is detachably connected with the air inlet pipe that communicates with the air inlet chamber, and the side end of film coated sand dust removal box is connected with two air outlet pipes, and two air outlet pipes are communicated with two dust removal cavities respectively, and the inside rotation connection of air inlet chamber has the rotary column, and the outside fixed connection of rotary column has the sealing plate that cooperates with air vent, in the process of replacing a dust removal net, can continue to filter air through another dust removal net to the continuity of film coated sand dust removal can be guaranteed, and the efficiency of film coated sand dust removal has been improved.

Description

Technical Field

[0001] This utility model relates to the field of coated sand dust removal technology, and more specifically, it relates to a device for coated sand dust removal. Background Technology

[0002] Coated sand is molding sand or core sand with a solid resin film on its surface before molding. There are two coating processes: cold coating and hot coating. In the cold coating process, the resin is dissolved in ethanol, and hexamethylenetetramine is added during the sand mixing process to coat the surface of the sand grains. The ethanol evaporates to obtain coated sand. In the hot coating process, the sand is preheated to a certain temperature, resin is added to melt it, and the mixture is stirred to coat the surface of the sand grains with resin. Hexamethylenetetramine aqueous solution and lubricant are added, and the sand is cooled, crushed, and sieved to obtain coated sand. Coated sand is used for casting steel and iron parts. Most coated sand requires dust removal during production to prevent dust pollution from the coated sand.

[0003] A search revealed that Chinese utility model application CN202321919498.2 discloses a device for dust removal of coated sand, including a coated sand dust collector box. A door is rotatably installed on the outer surface of the coated sand dust collector box. Six limiting plates are fixedly connected to the inner surface of the coated sand dust collector box. Two mounting brackets are slidably connected between the six limiting plates. Two snap-fit ​​devices are provided inside the coated sand dust collector box, and two limiting devices are provided on the outer surface of the coated sand dust collector box.

[0004] When in use, the air entering the coated sand dust collector box is filtered by a dust filter to prevent dust from being dispersed into the surrounding air and polluting the environment. However, when the dust filter needs to be replaced, the dust removal operation on the coated sand must be stopped, which affects the continuity of dust removal and reduces the efficiency of dust removal. In addition, it is not convenient to clean the dust from the dust filter. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, the present invention provides a device for dust removal of coated sand, so as to solve the technical problem mentioned in the background art that when the dust removal screen is replaced, the dust removal operation of coated sand needs to be stopped, which affects the continuity of dust removal of coated sand and reduces the efficiency of dust removal of coated sand.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for dust removal of coated sand, comprising a coated sand dust removal box, wherein a Y-shaped partition is fixedly connected inside the coated sand dust removal box, the Y-shaped partition dividing the interior of the coated sand dust removal box into two dust removal chambers and an air inlet chamber, two air vents are provided on the Y-shaped partition, and the air inlet chamber is connected to the two dust removal chambers respectively through the two air vents, and dust removal screens are detachably installed inside the two dust removal chambers, and an air inlet pipe communicating with the air inlet chamber is detachably connected to the side end of the coated sand dust removal box, and the side end of the coated sand dust removal box is connected to... There are two air outlet pipes, which are connected to two dust collection chambers respectively. A rotating column is rotatably connected inside the air inlet chamber. A sealing plate that matches the air vent is fixedly connected to the outside of the rotating column. A connecting seat is fixedly connected to one end of the rotating column extending to the upper side of the coated sand dust collection box. An electric cylinder is rotatably connected to the connecting seat. The other end of the electric cylinder is rotatably connected to the top of the coated sand dust collection box. During the replacement of one dust collection screen, the air can continue to be filtered through the other dust collection screen, thus ensuring the continuity of dust collection for coated sand and improving the efficiency of dust collection for coated sand.

[0009] The present invention is further configured such that a first sealing gasket is fixedly connected to both ends of the sealing plate to ensure the sealing effect of the sealing plate on the vent.

[0010] The present invention is further configured such that slots are provided at the top and bottom of the dust removal chamber, and a fixing frame is inserted into the two slots. The dust removal screen is fixedly installed inside the fixing frame, which facilitates the disassembly of the dust removal screen.

[0011] The present invention is further configured such that a first sealing cover for sealing the dust removal chamber is installed at both the front and rear ends of the coated sand dust removal box, which facilitates sealing the dust removal chamber.

[0012] The present invention is further configured such that a second sealing gasket is provided between the first sealing cover and the coated sand dust collector to ensure the sealing of the connection between the first sealing cover and the coated sand dust collector.

[0013] The present invention is further configured such that the interior of each of the two dust removal chambers is rotatably connected to a rotating shaft on the side of the dust removal screen near the air outlet pipe, and multiple soft rubber rods are uniformly fixedly connected to the outside of the rotating shaft. Two motors are fixedly installed at the top of the coated sand dust removal box, and the output ends of the two motors are respectively fixedly connected to the top of the two rotating shafts, so as to facilitate the cleaning of dust on the dust removal screen.

[0014] The present invention is further configured such that an air inlet communicating with the air inlet chamber is provided on the side end of the coated sand dust collector, and a second sealing cover for sealing the air inlet is installed on the side end of the coated sand dust collector. The air inlet pipe is fixedly connected to the second sealing cover, which facilitates the inspection and maintenance of the internal structure of the air inlet chamber through the air inlet.

[0015] The present invention is further provided that valves are installed on both of the air outlet pipes to facilitate control of the opening and closing of the air outlet pipes.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a device for dust removal of coated sand, which has the following beneficial effects:

[0018] 1. When a dust collector needs to be replaced, the electric cylinder drives the connecting seat, rotating column, and sealing plate to rotate, so that the sealing plate seals the air vent corresponding to the dust collector to be replaced. Then the corresponding dust collector is replaced. At this time, the air entering the air inlet chamber enters the interior of another dust collector chamber through another air vent. The air continues to be filtered by the dust collector inside the other dust collector chamber, thus avoiding the need to stop the dust removal operation of the coated sand, ensuring the continuity of dust removal of the coated sand, and improving the efficiency of dust removal of the coated sand.

[0019] 2. The motor drives the rotating shaft to rotate, which in turn drives multiple soft rubber rods to rotate. Through centrifugal force, the soft rubber rods are rotated. During the rotation, the soft rubber rods will strike the dust removal screen, causing the screen to vibrate and shake off the dust, thus preventing the screen from clogging.

[0020] 3. Remove the first sealing cover from the coated sand dust collector box, then pull the fixing frame out from the inside of the two slots to facilitate the removal of the dust filter from the inside of the dust collector chamber. Then insert the new fixing frame with the dust filter installed into the inside of the two slots, install the new dust filter inside the dust collector chamber, and then install the first sealing cover on the coated sand dust collector box to complete the replacement of the dust filter, thus facilitating the replacement of the dust filter. Attached Figure Description

[0021] Figure 1 This is a front structural diagram of a device for dust removal using coated sand according to the present invention;

[0022] Figure 2 This is a structural diagram showing the combination of the coated sand dust collector, dust filter, Y-shaped partition, rotating shaft, and multiple soft rubber rods in this utility model.

[0023] Figure 3 This is a top cross-sectional view of a partial structure of a device for dust removal using coated sand according to the present invention.

[0024] Figure 4 This is a side view of the membrane-coated sand dust collector in this utility model.

[0025] Figure 5This is a structural diagram showing the cooperation between the Y-shaped partition and the sealing plate in this utility model.

[0026] In the diagram: 1. Coated sand dust collector; 2. Y-shaped partition; 3. Dust collection chamber; 4. Air inlet chamber; 5. Air vent; 6. Dust collection screen; 7. Air inlet pipe; 8. Air outlet pipe; 9. Rotating column; 10. Sealing plate; 11. Connecting seat; 12. Electric cylinder; 13. First sealing gasket; 14. Slot; 15. Fixing frame; 16. First sealing cover; 17. Second sealing gasket; 18. Rotating shaft; 19. Soft rubber rod; 20. Motor; 21. Air inlet; 22. Second sealing cover; 23. Valve. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A device for dust removal of coated sand includes a coated sand dust collector 1. A Y-shaped partition 2 is fixedly connected inside the coated sand dust collector 1, dividing the interior of the dust collector 1 into two dust collection chambers 3 and an air inlet chamber 4. Two air vents 5 are provided on the Y-shaped partition 2, and the air inlet chamber 4 communicates with the two dust collection chambers 3 through the two air vents 5 respectively. Dust collection screens 6 are detachably installed inside each of the two dust collection chambers 3. An air inlet pipe 7 communicating with the air inlet chamber 4 is detachably connected to the side end of the coated sand dust collector 1. An air inlet 21 communicating with the air inlet chamber 4 is provided on the side end of the coated sand dust collector 1. A second sealing cover 22 for sealing the air inlet 21 is installed on the side end of the coated sand dust collector 1, and the air inlet pipe 7 is fixedly connected to the second sealing cover 22. The air inlet 21 facilitates the inspection of the internal structure of the air inlet chamber 4. Two air outlet pipes 8 are connected to the side of the coated sand dust collector 1, and the two air outlet pipes 8 are respectively connected to the two dust collector chambers 3. Valves 23 are installed on the two air outlet pipes 8 to facilitate the control of the opening and closing of the air outlet pipes 8. A rotating column 9 is rotatably connected inside the air inlet chamber 4. A sealing plate 10 that cooperates with the air vent 5 is fixedly connected to the outside of the rotating column 9. A first sealing gasket 13 is fixedly connected to both ends of the sealing plate 10 to ensure the sealing effect of the sealing plate 10 on the air vent 5. A connecting seat 11 is fixedly connected to one end of the rotating column 9 extending to the upper side of the coated sand dust collector 1. An electric cylinder 12 is rotatably connected to the connecting seat 11. The other end of the electric cylinder 12 is rotatably connected to the top of the coated sand dust collector 1.

[0031] Specifically, when a dust collector 6 needs to be replaced, the electric cylinder 12 drives the connecting seat 11, rotating column 9 and sealing plate 10 to rotate, so that the sealing plate 10 seals the air vent 5 corresponding to the dust collector 6 that needs to be replaced. Then the corresponding dust collector 6 is replaced. At this time, the air entering the air inlet chamber 4 enters the interior of another dust collector chamber 3 through another air vent 5. The air continues to be filtered by the dust collector 6 inside the other dust collector chamber 3, thus avoiding the need to stop the dust removal operation of the coated sand, ensuring the continuity of dust removal of the coated sand, and improving the efficiency of dust removal of the coated sand.

[0032] Please see Figures 1-3 The top and bottom of the dust removal chamber 3 are provided with slots 14, and a fixing frame 15 is inserted into the two slots 14. The dust removal screen 6 is fixedly installed inside the fixing frame 15, which facilitates the disassembly of the dust removal screen 6. The front and rear ends of the coated sand dust removal box 1 are equipped with a first sealing cover 16 for sealing the dust removal chamber 3, which facilitates the sealing of the dust removal chamber 3. A second sealing gasket 17 is provided between the first sealing cover 16 and the coated sand dust removal box 1 to ensure the sealing of the connection between the first sealing cover 16 and the coated sand dust removal box 1.

[0033] Specifically, the first sealing cover 16 is removed from the coated sand dust collector 1, and then the fixing frame 15 is pulled out from the inside of the two slots 14, so that the dust filter 6 can be removed from the inside of the dust collector 3. Then, the new fixing frame 15 with the dust filter 6 installed is inserted into the inside of the two slots 14, and the new dust filter 6 is installed inside the dust collector 3. Then, the first sealing cover 16 is installed on the coated sand dust collector 1, thereby completing the replacement of the dust filter 6, which facilitates the replacement of the dust filter 6.

[0034] Please see Figure 2 and Figure 3 The interior of each of the two dust removal chambers 3 is rotatably connected to a rotating shaft 18 on the side of the dust removal screen 6 near the air outlet pipe 8. Multiple soft rubber rods 19 are evenly fixedly connected to the outside of the rotating shaft 18. Two motors 20 are fixedly installed at the top of the coated sand dust removal box 1. The output ends of the two motors 20 are fixedly connected to the top of the two rotating shafts 18 respectively, so as to facilitate the cleaning of dust on the dust removal screen 6.

[0035] Specifically, the motor 20 drives the rotating shaft 18 to rotate, and during the rotation of the rotating shaft 18, multiple soft rubber rods 19 rotate. Through centrifugal force, the soft rubber rods 19 are rotated. During the rotation, the soft rubber rods 19 will strike the dust removal screen 6, causing the dust removal screen 6 to vibrate, which makes it easier to shake off the dust on the dust removal screen 6 and avoid clogging the dust removal screen 6.

[0036] In summary, when using the overall equipment:

[0037] Dust carried by the flowing air in the coated sand dust removal process enters the air intake chamber 4 through the air intake pipe 7 and enters the dust removal chamber 3 through the air vent 5. The dust in the air is filtered out by the dust removal screen 6 to prevent dust from being scattered into the surrounding air. When a dust removal screen 6 needs to be replaced, the electric cylinder 12 drives the connecting seat 11, the rotating column 9 and the sealing plate 10 to rotate, so that the sealing plate 10 seals the air vent 5 corresponding to the dust removal screen 6 that needs to be replaced. Then the corresponding dust removal screen 6 is replaced. At this time, the air entering the air intake chamber 4 enters the other dust removal chamber 3 through another air vent 5, and the air continues to be filtered by the dust removal screen 6 inside the other dust removal chamber 3.

[0038] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An apparatus for dust removal from coated sand, comprising a coated sand dust collector (1), characterized in that: The coated sand dust collector (1) is internally fixedly connected to a Y-shaped partition (2), which divides the interior of the coated sand dust collector (1) into two dust collection chambers (3) and one air inlet chamber (4). The Y-shaped partition (2) has two air vents (5), and the air inlet chamber (4) is connected to the two dust collection chambers (3) through the two air vents (5). Dust collection screens (6) are detachably installed inside both dust collection chambers (3). An air inlet pipe (7) connected to the air inlet chamber (4) is detachably connected to the side of the coated sand dust collector (1). Two air outlet pipes (8) are connected to the side end of the sand dust collector (1). The two air outlet pipes (8) are respectively connected to two dust collection chambers (3). The air inlet chamber (4) is rotatably connected to a rotating column (9). A sealing plate (10) that cooperates with the air vent (5) is fixedly connected to the outside of the rotating column (9). A connecting seat (11) is fixedly connected to one end of the rotating column (9) extending to the upper side of the coated sand dust collector (1). An electric cylinder (12) is rotatably connected to the connecting seat (11). The other end of the electric cylinder (12) is rotatably connected to the top of the coated sand dust collector (1).

2. The device for dust removal of coated sand according to claim 1, characterized in that: Both ends of the sealing plate (10) are fixedly connected with a first sealing gasket (13).

3. The device for dust removal of coated sand according to claim 1, characterized in that: The top and bottom of the dust removal chamber (3) are provided with slots (14), and a fixing frame (15) is inserted into the two slots (14). The dust removal net (6) is fixedly installed inside the fixing frame (15).

4. The device for dust removal of coated sand according to claim 1, characterized in that: The front and rear ends of the coated sand dust collector (1) are each equipped with a first sealing cover (16) for sealing the dust collection chamber (3).

5. The device for dust removal of coated sand according to claim 4, characterized in that: A second sealing gasket (17) is provided between the first sealing cover (16) and the coated sand dust collector (1).

6. The device for dust removal of coated sand according to claim 1, characterized in that: The interior of each of the two dust removal chambers (3) is rotatably connected to a rotating shaft (18) on the side of the dust removal net (6) near the air outlet pipe (8). Multiple soft rubber rods (19) are uniformly fixedly connected to the outside of the rotating shaft (18). Two motors (20) are fixedly installed at the top of the coated sand dust removal box (1). The output ends of the two motors (20) are fixedly connected to the top of the two rotating shafts (18) respectively.

7. The device for dust removal of coated sand according to claim 1, characterized in that: The side end of the coated sand dust collector (1) is provided with an air inlet (21) that communicates with the air inlet chamber (4). The side end of the coated sand dust collector (1) is provided with a second sealing cover (22) for sealing the air inlet (21). The air inlet pipe (7) is fixedly connected to the second sealing cover (22).

8. The device for dust removal of coated sand according to claim 1, characterized in that: Valves (23) are installed on both of the aforementioned air outlet pipes (8).

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