Dedusting cover special for large papermaking cast pipe casting

Abstract

The utility model relates to the technical field of dust removal equipment, in particular to a special dust removal cover for large papermaking cast pipe casting, which comprises a pit base surface, a plurality of casting components and a dust cover main body, the plurality of casting components are arranged on the pit base surface in parallel, and the dust cover main body positioned above the casting components is erected at the top of the pit base surface. Two sets of top cover doors are hinged to the top of the dust cover body, a plurality of outer side wall doors are clamped to the front side and the rear side of the dust cover body, and outer right-angle doors are hinged to the left side and the right side of the dust cover body. According to the special dust hood for casting the large papermaking cast pipe, the movable dust hood main body is arranged on the parallel casting assemblies, and the position of the dust hood main body can be adaptively adjusted according to the casting position, so that the dust hood main body can treat flue gas generated during casting of all the casting assemblies, and the cost is reduced; and meanwhile, during casting, the draught fan can suck smoke generated during casting of the casting assembly through the air guide air pipe and the air guide cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a special dust removal cover for casting a large-scale papermaking casting pipe. Background Art

[0002] The papermaking process usually includes a series of processes such as forming, pressing, pre-drying, sizing / coating (surface treatment), post-drying, calendering, and rolling up. In the drying stage after pressing and dehydration or sizing and coating, the existing drying device is generally composed of multiple drying cylinders, each of which is driven by a different motor to transmit the paper, thereby drying the paper. Common drying cylinders are usually prepared by casting, especially for drying cylinders used in large papermaking equipment. In order to ensure the casting quality of the drying cylinder, the vertical casting method is generally adopted. Figure 2 As shown, a plurality of casting assemblies arranged in parallel on the foundation pit are provided to automatically cast the drying cylinder.

[0003] When casting a large drying cylinder, the ladle is hoisted by hoisting equipment, and the molten steel is introduced into the casting assembly to realize the casting operation of the drying cylinder. In the process of introducing molten steel into the casting assembly and solidifying the molten steel, smoke and dust are inevitably generated. For the treatment of casting smoke, the existing technology usually sets a smoke exhaust structure around the casting assembly. However, the casting assembly has a large number of equipment in parallel. This treatment method requires a large number of smoke exhaust structures to be set according to the number of casting assemblies, resulting in increased costs; in addition, since the ladle needs to be hoisted to input the molten steel during casting, and the core mold and the formed drying cylinder need to be hoisted during the casting stage, the fixed smoke exhaust structure is easy to affect the movement of the ladle, core mold, forming drying cylinder and other structures. For this reason, we propose a special dust removal hood for large-scale papermaking cast pipe casting to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a special dust removal cover for casting a large papermaking casting pipe, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a dust removal cover specially used for casting large-scale papermaking cast pipes, including a pit base, a casting assembly, and a dust cover body, wherein a plurality of casting assemblies are arranged in parallel on the pit base, a dust cover body located above the casting assembly is arranged on the top of the pit base, two groups of top cover doors are hingedly arranged on the top of the dust cover body, a plurality of outer wall doors are clamped on the front and rear sides, and outer right-angle doors are hingedly arranged on the left and right sides, a driving assembly 1 and a driving assembly 2 are fixedly installed on the top of the dust cover body, a transmission shaft 1 and a movable mounting assembly cooperating with the top cover door are movably installed on the top of the dust cover body. A transmission shaft 2 is provided to cooperate with the outer wall door, the outer fixed sleeve of the transmission shaft 1 is provided with a winding drum 1, the outer fixed sleeve of the transmission shaft 2 is provided with a winding drum 2, a horizontal winding drum cooperating with the outer right-angle door is movably installed on the top of the dust cover main body, a lever located on the top of the dust cover main body is fixedly connected to the rotating shaft of the outer right-angle door, filter components are provided on the front and rear sides of the interior of the dust cover main body, and an air guide chamber is formed between the two groups of filter components, an air guide duct is fixedly installed on the dust cover main body on the same side as any outer right-angle door, a supporting leg is provided at the bottom of the dust cover main body, and a walking wheel and a driving component 3 are provided at the bottom end of the supporting leg.

[0006] Preferably, the number of outer wall doors in front of or behind the dust cover body is the same as the number of rows of the casting assembly, the installation position of the outer wall doors on the dust cover body corresponds to the casting assembly, and a guide frame that cooperates with the outer wall doors is fixedly installed on the dust cover body.

[0007] Preferably, a sprocket structure is provided at one end of the transmission shaft 2 and the transmission shaft 1, and the transmission shaft 2 and the transmission shaft 1 are transmitted through the sprocket structure, a cable is wound around the outside of the winding drum 2, and one end of the cable is tied to the top of the outer wall door.

[0008] Preferably, a sprocket structure is provided on one end of the transmission shaft and the output shaft of the driving component, the driving component and the transmission shaft are transmitted through the sprocket structure, a cable is wound around the outside of the winding drum, and one end of the cable is tied to the top cover door, and a vertical guide pulley cooperating with the winding drum is provided on the top of the dust cover body.

[0009] Preferably, a sprocket structure is provided on the output shaft of the horizontal winding drum and the driving component 2, and the horizontal winding drum and the driving component 2 are driven by the sprocket structure. A cable is wound around the horizontal winding drum, and one end of the cable is tied to the lever. A horizontal guide pulley cooperating with the horizontal winding drum is provided on the top of the dust cover body.

[0010] Preferably, support legs are provided on both sides of the bottom of the dust cover body, the walking wheels are movably installed at the bottom ends of the support legs, the driving component three is fixedly installed at the bottom ends of the supporting legs, and the driving component three can provide power for the rotation of the walking wheels.

[0011] Preferably, ladder assemblies are provided on both left and right sides of the dust cover body, and guardrails are provided on the surrounding sides of the top of the dust cover body.

[0012] The utility model provides a special dust removal cover for casting of large papermaking casting pipes, which has the following beneficial effects:

[0013] 1. The dust hood specially used for casting of large-scale papermaking cast pipes can be adaptively adjusted according to the casting position by arranging a movable dust hood body on the parallel casting components, so that the dust hood body can process the smoke generated during the casting of all casting components, thereby reducing costs. At the same time, during casting, the fan can suck the smoke generated during the casting of the casting components through the air guide duct and the air guide chamber, and filter the smoke through the filter component to purify the smoke generated by the casting, thereby avoiding the impact of toxic and harmful substances in the smoke on the environment and the staff.

[0014] 2. The large-scale papermaking casting tube casting special dust removal cover is provided with a top cover door, an outer wall door and an outer right-angle door on the main body of the dust cover. The drive shaft, the winding drum and the lever are driven by different motors, and the opening and closing of the doors at various positions can be controlled by cable transmission. The sealing of the main body of the dust cover is ensured during casting to prevent the casting smoke from escaping to the outside. At the same time, it is convenient to hoist the ladle, core mold, forming drying cylinder, etc. to prevent interference between the main body of the dust cover and the ladle, core mold, forming drying cylinder and casting components. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model after overall assembly;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model as a whole from the side;

[0017] Figure 3 This is a schematic diagram of the structure inside the main body of the dust cover of the utility model;

[0018] Figure 4 This is a schematic structural diagram of the main body of the dust cover of the utility model when viewed from the front;

[0019] Figure 5 This is a schematic diagram of the structure of the dust cover body of the utility model from the side;

[0020] Figure 6 It is a schematic structural diagram of the main body of the dust cover of the utility model when viewed from above.

[0021] In the figure: 1. pit base; 2. casting assembly; 3. dust cover body; 4. top cover door; 5. outer wall door; 6. guide frame; 7. outer right-angle door; 8. vertical guide pulley; 9. transmission shaft one; 10. winding drum one; 11. driving assembly one; 12. transmission shaft two; 13. winding drum two; 14. lever; 15. horizontal guide pulley; 16. horizontal winding drum; 17. driving assembly two; 18. supporting leg; 19. walking wheel; 20. driving assembly three; 21. filter assembly; 22. air guide chamber; 23. air guide duct; 24. ladder assembly; 25. guardrail. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1 , 23. The utility model provides a technical solution: a special dust removal cover for casting large-scale papermaking cast pipes, comprising a pit base 1, a casting component 2, and a dust cover body 3. A plurality of casting components 2 are arranged in parallel on the pit base 1. A dust cover body 3 located above the casting component 2 is arranged on the top of the pit base 1. Two groups of top cover doors 4 are hingedly arranged on the top of the dust cover body 3, a plurality of outer wall doors 5 are clamped on both the front and rear sides, and outer right-angle doors 7 are hingedly arranged on both the left and right sides. A driving component 1 11 and a driving component 2 17 are fixedly installed on the top of the dust cover body 3. The driving component 1 11, the driving component 2 17 and the driving component 3 20 are all currently common existing technologies, and products of Schneider Company can be selected to provide power for the opening and closing of doors at various positions. The driving assembly is composed of a servo motor and a reducer. A transmission shaft 9 cooperating with the top cover door 4 is movably installed on the top of the dust cover body 3, and a transmission shaft 2 12 cooperating with the outer wall door 5 is movably installed. A winding drum 10 is fixedly mounted on the outside of the transmission shaft 9. The transmission shaft 9 drives the winding drum 10 to rotate to wind the cable, so as to realize the control of opening and closing of the top cover door 4. A winding drum 2 13 is fixedly mounted on the outside of the transmission shaft 2 12. The transmission shaft 2 12 drives the winding drum 2 13 to rotate to wind the cable, so as to realize the control of opening and closing of the outer wall door 5. A horizontal winding drum 16 cooperating with the outer right-angle door 7 is movably installed on the top of the dust cover body 3. A lever 14 located at the top of the dust cover body 3 is fixedly connected to the rotating shaft of the outer right-angle door 7. The top The cover door 4, the outer wall door 5, and the outer right-angle door 7 can be controlled to open and close by a motor drive. When closed, the dust cover body 3 is sealed to prevent casting dust from escaping to the outside. When opened, it is convenient to hoist the ladle, core mold, forming drying cylinder, etc. to prevent interference between the dust cover body 3 and the ladle, core mold, forming drying cylinder and casting component 2. Filter components 21 are arranged on the front and back sides of the dust cover body 3. The filter component 21 is a common existing technology at present. When the smoke flows in the dust cover body 3 along the air guide chamber 22 above the casting component 2, the smoke can be filtered by the filter component 21, and an air guide chamber 22 is formed between the two groups of filter components 21. The dust cover body 3 is fixedly installed with the same filter as any outer right-angle door 7. The air guide duct 23 on the side, the dust cover body 3 is connected to the fan in the prior art. During casting, the fan can suck the smoke generated during the casting of the casting component 2 through the air guide duct 23 and the air guide chamber 22, and filter the smoke through the filter component 21 to purify the smoke generated during the casting. A supporting leg 18 is provided at the bottom of the dust cover body 3, and a walking wheel 19 and a driving component three 20 are provided at the bottom of the supporting leg 18. The walking wheel 19 is driven to rotate by the driving component three 20, and cooperates with the track on the pit base 1 to drive the dust cover body 3 to move as a whole. The position of the dust cover body 3 can be adaptively adjusted according to the casting position, so that the dust cover body 3 can process the smoke generated during the casting of all casting components 2.

[0024] See also Figure 1 , 2 The number of outer wall doors 5 in front of or behind the dust cover body 3 is the same as the number of rows of the casting assembly 2. The installation position of the outer wall door 5 on the dust cover body 3 corresponds to the casting assembly 2. Since the casting assembly 2 needs to be equipped with a pressure block, a pressure frame and other components on the top during casting, the opening and closing of the outer wall door 5 is controlled to avoid interference between the dust cover body 3 and the casting assembly 2 when it moves. A guide frame 6 that cooperates with the outer wall door 5 is fixedly installed on the dust cover body 3. The position of the outer wall door 5 is limited by the guide frame 6 to ensure the stability of the outer wall door 5 when it moves up and down.

[0025] See also Figure 4 , 6 A sprocket structure is provided at one end of the transmission shaft 12 and the transmission shaft 1 9, and the transmission shaft 12 and the transmission shaft 1 9 are driven by the sprocket structure. The sprocket structure is used to ensure stable power transmission. A cable is wound around the outside of the winding drum 13, and one end of the cable is tied to the top of the outer wall door 5. When the driving component 11 drives the transmission shaft 1 9 to rotate, the transmission shaft 1 9 can synchronously drive the transmission shaft 12 and the winding drum 13 to rotate through the sprocket structure, and the cable on the winding drum 13 is wound to adjust the position of the outer wall door 5.

[0026] A sprocket structure is provided on one end of the transmission shaft 9 and the output shaft of the driving component 11. The driving component 11 and the transmission shaft 9 are transmitted through the sprocket structure. The transmission through the sprocket structure ensures stable power transmission. The driving component 11 can drive the transmission shaft 9 and the winding drum 10 to rotate through the sprocket structure, realize the winding of the cable on the winding drum 10, and thus control the opening and closing of the top cover door 4. The outside of the winding drum 10 is wrapped with a cable, and one end of the cable is tied to the top cover door 4. A vertical guide pulley 8 cooperating with the winding drum 10 is provided on the top of the dust cover body 3. The position of the cable is guided by the vertical guide pulley 8 to ensure that the rotation of the winding drum 10 can smoothly drive the top cover door 4 to move.

[0027] A sprocket structure is provided on the output shaft of the horizontal winding drum 16 and the driving component 2 17, and the power is transmitted through the sprocket structure to ensure stable power transmission. The horizontal winding drum 16 and the driving component 2 17 are transmitted through the sprocket structure. A cable is wound on the horizontal winding drum 16, and one end of the cable is tied to the lever 14. The lever 14 is a common existing technology. A torsion spring structure is provided on the lever 14. The horizontal winding drum 16 winds the cable and can rotate the lever 14 by pulling the cable, thereby driving the outer right-angle door 7 to open. When the horizontal winding drum 16 rotates in the opposite direction, the torsion spring applies a torque to the lever 14, which can drive the outer right-angle door 7 to reset and close. A horizontal guide pulley 15 cooperating with the horizontal winding drum 16 is provided on the top of the dust cover main body 3. The cable position is guided by the horizontal guide pulley 15 to ensure that the horizontal winding drum 16 can smoothly drive the lever 14 to move when it rotates.

[0028] See also Figure 4 , 5 , support legs 18 are provided on the left and right sides of the bottom of the dust cover main body 3, and walking wheels 19 are movably installed on the bottom ends of the support legs 18. The driving component three 20 is fixedly installed on the bottom ends of the support legs 18. The front and rear parts of the left and right sides of the bottom end of the dust cover main body 3 are provided with walking wheels 19 and driving components three 20. The dust cover main body 3 is powered by multiple sets of walking wheels 19 and driving components three 20 to ensure that the dust cover main body 3 can move stably, and the driving component three 20 can provide power for the rotation of the walking wheels 19. A track that cooperates with the walking wheels 19 is provided on the pit base 1, which is a common existing technology at present. By driving the driving component three 20 to drive the walking wheels 19 to rotate, the walking wheels 19 can be rotated on the track to achieve adjustment of the overall position of the dust cover main body 3.

[0029] Ladder assemblies 24 are provided on both sides of the dust cover main body 3. The ladder assemblies 24 make it easy to climb to the top of the dust cover main body 3 to inspect the top structure of the dust cover main body 3. Guardrails 25 are provided on the sides around the top of the dust cover main body 3. The guardrails 25 improve the safety of inspecting the top structure of the dust cover main body 3.

[0030] In summary, when the large-scale papermaking casting pipe casting special dust removal cover is used, the driving component three 20 drives the walking wheel 19 to rotate and cooperate with the track on the pit base surface 1 to move the dust cover body 3 to the casting component 2 to be cast. In the initial adjustment stage of the dust cover body 3, the driving component two 17 drives the horizontal winding drum 16 to rotate through the sprocket structure, and guides the cable through the horizontal guide pulley 15, pulls the lever 14 to rotate to one side, and opens the outer right-angle doors 7 on the left and right sides of the dust cover body 3. The driving component one 11 drives the transmission shaft one 9 and the winding drum one 10 to rotate through the sprocket structure, and drives the top cover door 4 to open through the cable transmission, and drives the transmission shaft one 9 through the sprocket structure. The transmission shaft two 12 and the winding drum two 13 rotate, and the outer wall door 5 is pulled up through the cable transmission to move the top cover door. 4. The outer wall door 5 and the outer right-angle door 7 are all opened to avoid interference between the dust cover body 3 and the casting component 2 when it moves. The core mold is hoisted into the casting component 2 along the position of the top cover door 4 by hoisting, and the ladle is hoisted along the outer right-angle door 7 by the hoisting equipment to pour the molten steel into the casting component 2. After the molten steel is poured, the driving component 1 11 and the driving component 2 17 control the top cover door 4, the outer wall door 5, and the outer right-angle door 7 to be closed, and the fan connected to the air guide duct 23 is started synchronously. The fan sucks the smoke generated by the casting of the casting component 2 along the air guide duct 23 and the air guide chamber 22, and filters the toxic and harmful substances in the smoke through the filter component 21. After the drying cylinder is formed, the top cover door 4, the outer wall door 5, and the outer right-angle door 7 are opened, the formed drying cylinder is taken out, and the next cycle is carried out.

[0031] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust cover for large-scale papermaking casting pipe casting, comprising a pit base (1), a casting assembly (2), and a dust cover body (3), wherein a plurality of casting assemblies (2) are arranged in parallel on the pit base (1), characterized in that: A dust cover body (3) located above the casting assembly (2) is mounted on the top of the pit base surface (1); two groups of top cover doors (4) are hingedly arranged on the top of the dust cover body (3); a plurality of outer wall doors (5) are clamped on both the front and rear sides; and outer right-angle doors (7) are hingedly arranged on both the left and right sides; a driving assembly 1 (11) and a driving assembly 2 (17) are fixedly installed on the top of the dust cover body (3); a transmission shaft 1 (9) cooperating with the top cover door (4) and a transmission shaft 2 (12) cooperating with the outer wall door (5) are movably installed on the top of the dust cover body (3); a winding drum 1 (10) is fixedly mounted on the outside of the transmission shaft 1 (9); and a winding drum 1 (10) is fixedly mounted on the outside of the transmission shaft 2 (12). The fixed set is provided with a second winding drum (13); a horizontal winding drum (16) cooperating with the outer right-angle door (7) is movably installed on the top of the dust cover body (3); a lever (14) located at the top of the dust cover body (3) is fixedly connected to the rotating shaft of the outer right-angle door (7); filter components (21) are arranged on the front and rear sides of the interior of the dust cover body (3), and an air guide chamber (22) is formed between the two groups of filter components (21); an air guide duct (23) is fixedly installed on the dust cover body (3) on the same side as any outer right-angle door (7); a supporting leg (18) is provided at the bottom of the dust cover body (3), and a walking wheel (19) and a driving component three (20) are arranged at the bottom of the supporting leg (18).

2. A dust removal cover specially used for casting large papermaking casting pipes according to claim 1, characterized in that: The number of the outer wall doors (5) in front of or behind the dust cover body (3) is the same as the number of rows of the casting assembly (2); the installation position of the outer wall doors (5) on the dust cover body (3) corresponds to the casting assembly (2); and a guide frame (6) that cooperates with the outer wall doors (5) is fixedly installed on the dust cover body (3).

3. A dust removal cover specially used for casting large papermaking casting pipes according to claim 1, characterized in that: One end of the transmission shaft 2 (12) and the transmission shaft 1 (9) is provided with a sprocket structure, and the transmission shaft 2 (12) and the transmission shaft 1 (9) are driven by the sprocket structure. The outside of the winding drum 2 (13) is wound with a cable, and one end of the cable is tied to the top of the outer wall door (5).

4. A dust removal cover specially used for casting large papermaking casting pipes according to claim 1, characterized in that: A sprocket structure is provided on one end of the transmission shaft (9) and the output shaft of the driving assembly (11); the driving assembly (11) and the transmission shaft (9) are driven by the sprocket structure; a cable is wound around the outside of the winding drum (10), and one end of the cable is tied to the top cover door (4); a vertical guide pulley (8) cooperating with the winding drum (10) is provided on the top of the dust cover body (3).

5. The dust removal cover specially used for casting of large papermaking casting pipes according to claim 1 is characterized in that: A sprocket structure is provided on the output shaft of the horizontal winding drum (16) and the second driving component (17), and the horizontal winding drum (16) and the second driving component (17) are driven by the sprocket structure. A cable is wound around the horizontal winding drum (16), and one end of the cable is tied to the lever (14). A horizontal guide pulley (15) cooperating with the horizontal winding drum (16) is provided on the top of the dust cover body (3).

6. A dust removal cover specially used for casting large papermaking casting pipes according to claim 1, characterized in that: Support legs (18) are provided on both left and right sides of the bottom of the dust cover body (3); the walking wheel (19) is movably mounted on the bottom end of the supporting leg (18); the driving component three (20) is fixedly mounted on the bottom end of the supporting leg (18); and the driving component three (20) can provide power for the rotation of the walking wheel (19).

7. The dust removal cover for large-scale papermaking casting pipe according to claim 1 is characterized in that: Ladder assemblies (24) are provided on both left and right sides of the dust cover body (3), and a guardrail (25) is provided on the peripheral side of the top end of the dust cover body (3).

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