Vertical mill slag discharging opening air locking and discharging flap valve for cement production

Abstract

The utility model provides a vertical mill slag discharge port airlock unloading flap valve for cement production, which comprises a flap valve main body, and a receiving box used for guiding cement production waste slag is arranged in the flap valve main body, compared with the prior art, the vertical mill slag discharge port airlock unloading flap valve has the beneficial effects that the flap valve main body and an overturning control mechanism are additionally arranged, so that the vertical mill slag discharge port airlock unloading flap valve is convenient to operate; the overturning control mechanism is installed on the right rear side of the bearing box, a main hydraulic rod stretches out and draws back to drive a linkage rod to rotate, the right end of the linkage rod drives a discharging rotating shaft to rotate, the linkage rod increases the length of a power arm, and two sets of auxiliary hydraulic rods drive the right end of a discharging overturning plate to rotate in the rotating process of the discharging overturning plate. After the upper surface of the discharging turning plate is attached to the lower surface of the collecting groove, the sealing bottom frame is embedded to the outer side of the expansion sealing ring, the discharging turning plate presses the inflation bag to inflate and expand the interior of the expansion sealing ring, and therefore the closing sealing performance can be improved, and by additionally arranging the turning plate valve body, the turning control mechanism and the rear housing, dismounting and using can be convenient.

Description

Technical Field

[0001] This utility model belongs to the technical field of airlock unloading flap valves, and specifically relates to an airlock unloading flap valve for the slag discharge port of a vertical mill in cement production. Background Technology

[0002] Airlock unloading flap valves are mainly used in feeding and unloading devices, and are widely applicable in industries such as building materials, metallurgy, chemical, and power. They serve as unloading devices for ash hoppers in various dust removal equipment, as well as for feeding and unloading various grinding mills, dryers, and silos, preventing drafts. During operation, the airlock unloading flap valve controls material unloading by opening and closing the flap. In most cases, the flap structure is controlled by a rotating shaft at one end. This rotating structure requires a significant external force to drive the end rotation, and a large holding force is needed to seal the material. Furthermore, the connection is only sealed by a single flap, leading to insufficient sealing after closure. This can result in material leakage during operation, thus failing to fully achieve the desired material unloading control.

[0003] In summary, the insufficient sealing performance of the airlock unloading flap valve causes some problems during use. Therefore, it is hoped that a new structure can be proposed to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lock-air unloading flap valve for the slag discharge port of a vertical mill in cement production, so as to solve the problems mentioned in the background technology.

[0005] This utility model is achieved through the following technical solution: a vertical mill slag discharge port airlock unloading flap valve for cement production, comprising: a flap valve body, wherein a receiving box for guiding cement production waste slag is provided in the flap valve body, a flipping control mechanism for driving the unloading flap to rotate to achieve auxiliary unloading is installed on the right rear side of the receiving box, a rear cover for easy maintenance is installed on the right side of the receiving box, and an unloading flap for achieving unloading control is installed on the lower inner side of the receiving box.

[0006] In a preferred embodiment, the upper surface of the receiving box is provided with a collection trough for collecting waste residue. The cross-section of the collection trough is a trapezoidal structure that is wider at the top and narrower at the bottom. An expansion sealing ring for improving sealing performance is fixedly connected to the lower surface of the collection trough.

[0007] In a preferred embodiment, a discharge shaft for driving the discharge flap to rotate is connected through the inner side of the right end of the discharge flap. A sealing bottom frame is fixedly connected to the upper surface of the discharge flap. The sealing bottom frame is sealed and fitted with the expanded sealing ring after expansion. The sealing performance of the discharge flap after closing can be improved by the fitting of the sealing bottom frame and the expanded sealing ring.

[0008] In a preferred embodiment, two sets of symmetrically arranged rotating seats are fixedly connected to the front and rear sides of the right end of the upper surface of the unloading flap, and an auxiliary hydraulic rod is rotatably connected between the two sets of rotating seats. The unloading shaft is located at the right quarter of the entire unloading flap.

[0009] In a preferred embodiment, an expansion cavity is provided on the inner side of the expansion sealing ring, and an air bladder is integrally connected to the receiving box on the upper right side of the unloading flap. The air bladder and the expansion cavity are interconnected by an air guide hole. During the closing process, the unloading flap compresses the air bladder, allowing the gas inside to be introduced into the expansion cavity through the air guide hole, thereby expanding the expansion sealing ring and improving its sealing performance.

[0010] In a preferred embodiment, the tilting control mechanism includes a main hydraulic rod for driving the unloading shaft to rotate. A rotating ring is connected to the front of the main hydraulic rod via a pin, and a linkage rod is fixedly connected to the right side of the rotating ring. The main hydraulic rod extends and retracts, driving the linkage rod to rotate, which can drive the unloading shaft to complete the tilting control, and the linkage rod can increase the length of the power arm.

[0011] In a preferred embodiment, a bonding plate for assisting in the conveying of waste residue is fixedly connected to the upper left side of the unloading flap, and a guide seat is fixedly connected to the lower left side of the receiving box.

[0012] The guide seat has an inclined structure with the right side higher than the left side, and its upper right side is in contact with the lower surface of the bonding plate. The left side of the receiving box is fixedly connected to the guide bucket.

[0013] As a preferred embodiment, a set of rotating rings is also fixedly connected to the right side of the linkage rod. Both the rotating rings and the outer side of the unloading shaft are provided with connecting threaded holes. The rotating rings on the right side are fitted onto the outer side of the unloading shaft and fixedly connected with bolts.

[0014] The rear cover is provided with a connecting ring seat, which is fixed to the right side of the receiving box with bolts, and the cover body is fixedly connected to the right side of the connecting ring seat.

[0015] As a preferred embodiment, the flipping control mechanism is further provided with a mounting plate 1 for installation, and a mounting plate 2 is fixedly connected to the lower right end of the rear side of the receiving box. The mounting plate 1 and the mounting plate 2 are attached to each other and fixedly connected by bolts. Both ends of the flipping control mechanism are fixedly connected by bolts, and the rear cover is also fixed to the right side of the receiving box by bolts, which facilitates disassembly and assembly.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By adding the main body of the flap valve and the flipping control mechanism, the flipping control mechanism is installed on the right rear side of the receiving box. The main hydraulic rod extends and retracts to drive the linkage rod to rotate, and its right end drives the unloading shaft to rotate. The linkage rod increases the length of the power arm, and during the rotation of the unloading flap, the right end of the unloading flap is driven to rotate through two sets of auxiliary hydraulic rods. After the upper surface of the unloading flap is attached to the lower surface of the collecting groove, the sealing bottom frame is fitted to the outside of the expansion sealing ring. The unloading flap presses the air bladder to inflate and expand the expansion sealing ring, thereby improving the sealing performance. By adding the main body of the flap valve, the flipping control mechanism and the rear cover, it is easy to disassemble and use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a vertical mill slag discharge port airlock unloading flap valve for cement production, according to this utility model.

[0019] Figure 2 This is a schematic diagram of the left side structure of the flap valve body in the vertical mill slag discharge port airlock unloading flap valve for cement production according to this utility model.

[0020] Figure 3 This is a schematic diagram of the right side of the flap valve body in the vertical mill slag discharge port airlock unloading flap valve for cement production according to this utility model.

[0021] Figure 4 This is a partial cross-sectional schematic diagram of the flap valve body in the vertical mill slag discharge port airlock unloading flap valve for cement production according to this utility model.

[0022] Figure 5 This is a schematic diagram of the overturning control mechanism in the airlock unloading flap valve of a vertical mill for cement production, according to this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the rear cover of the airlock unloading flap valve at the slag discharge port of a cement production vertical mill according to this utility model.

[0024] In the diagram, 100-Flap valve body, 101-Receiving box, 102-Collection trough, 103-Expansion sealing ring, 104-Expansion inner cavity, 105-Air guide hole, 106-Inflatable bladder, 107-Unloading flap, 108-Sealing bottom frame, 109-Adhesive plate, 110-Guide seat, 111-Guide bucket, 112-Rotating seat, 113-Auxiliary hydraulic rod, 114-Unloading shaft, 115-Mounting plate two;

[0025] 200-Tilting control mechanism, 201-Mounting plate one, 202-Main hydraulic rod, 203-Rotating ring, 204-Linkage rod, 205-Connecting threaded hole;

[0026] 300 - Rear cover, 301 - Connecting ring seat, 302 - Cover body. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 6 This utility model provides a technical solution: a vertical mill slag discharge port airlock unloading flap valve for cement production, comprising: flap valve body 100, and a receiving box 101 for guiding cement production waste slag in the flap valve body 100.

[0029] A flipping control mechanism 200 is installed on the right rear side of the receiving box 101 to drive the unloading flap 107 to rotate and achieve auxiliary unloading. A rear cover 300 for easy maintenance is installed on the right side of the receiving box 101. An unloading flap 107 for unloading control is installed on the lower inner side of the receiving box 101.

[0030] The upper surface of the receiving box 101 is provided with a collection trough 102 for collecting waste residue. The cross-section of the collection trough 102 is a trapezoidal structure that is wider at the top and narrower at the bottom. An expansion sealing ring 103 for improving sealing is fixedly connected to the lower surface of the collection trough 102.

[0031] The inner side of the right end of the unloading flap 107 is connected to an unloading shaft 114 for driving the unloading flap 107 to rotate. A sealing bottom frame 108 is fixedly connected to the upper surface of the unloading flap 107. The sealing bottom frame 108 is sealed and fitted with the expanded sealing ring 103 after expansion. The sealing performance of the unloading flap 107 after closing can be improved by the fitting of the sealing bottom frame 108 and the expanded sealing ring 103.

[0032] Two sets of symmetrically arranged rotating seats 112 are fixedly connected to the front and rear sides of the right end of the upper surface of the unloading flap 107. An auxiliary hydraulic rod 113 is rotatably connected between the two sets of rotating seats 112. The unloading shaft 114 is located at the right quarter of the entire unloading flap 107.

[0033] An expansion cavity 104 is provided inside the expansion sealing ring 103. An air bladder 106 is integrally connected to the receiving box 101 on the upper right side of the unloading flap 107. An air guide hole 105 is connected between the air bladder 106 and the expansion cavity 104. During the closing process, the unloading flap 107 compresses the air bladder 106, so that the gas inside it is introduced into the expansion cavity 104 through the air guide hole 105, thereby expanding the expansion sealing ring 103 and improving the sealing performance.

[0034] The tilting control mechanism 200 is equipped with a main hydraulic rod 202 for driving the unloading shaft 114 to rotate. A rotating ring 203 is connected to the front of the main hydraulic rod 202 via a pin. A linkage rod 204 is fixedly connected to the right side of the rotating ring 203. The main hydraulic rod 202 extends and retracts, driving the linkage rod 204 to rotate, which can drive the unloading shaft 114 to complete the tilting control, and the linkage rod 204 increases the length of the power arm.

[0035] A bonding plate 109 for assisting in the conveying of waste residue is fixedly connected to the upper left side of the unloading flap 107, and a guide seat 110 is fixedly connected to the lower left side of the receiving box 101.

[0036] The guide seat 110 has an inclined structure with the right side higher than the left side, and its upper right side is in contact with the lower surface of the bonding plate 109. The guide bucket 111 is fixedly connected to the left side of the receiving box 101.

[0037] Please see Figures 1-5 As the first embodiment of this utility model: First, the user installs the flipping control mechanism 200 on the right rear side of the receiving box 101. The main hydraulic rod 202 extends and retracts, driving the linkage rod 204 to rotate, which can drive the unloading shaft 114 to complete the flipping control. The linkage rod 204 increases the length of the power arm, and the right end of the unloading flap 107 rotates through two sets of auxiliary hydraulic rods 113 during the rotation of the unloading flap 107, so that the unloading flap 107 can achieve rapid rotation control. Second, after the upper surface of the unloading flap 107 is attached to the lower surface of the collecting groove 102, the sealing bottom frame 108 is fitted to the outside of the expansion sealing ring 103. During the closing process, the unloading flap 107 compresses the air bag 106, so that the gas inside is introduced into the expansion cavity 104 through the air guide hole 105, causing the expansion sealing ring 103 to expand and improve the sealing performance, thereby improving the closing sealing performance.

[0038] A set of rotating rings 203 is also fixedly connected to the right side of the linkage rod 204. Both the rotating rings 203 and the outer side of the unloading shaft 114 are provided with threaded holes 205. The right rotating ring 203 is fitted onto the outside of the unloading shaft 114 and fixed with bolts.

[0039] A connecting ring seat 301 is provided in the rear cover 300. The connecting ring seat 301 is fixedly connected to the right side of the receiving box 101 by bolts. The cover body 302 is fixedly connected to the right side of the connecting ring seat 301.

[0040] The flipping control mechanism 200 is also provided with a mounting plate 201 for installation. The mounting plate 115 is fixedly connected to the lower right side of the rear side of the receiving box 101. The mounting plate 201 and the mounting plate 115 are attached to each other and fixed with bolts. Both ends of the flipping control mechanism 200 are fixed with bolts, and the rear cover 300 is also fixed to the right side of the receiving box 101 with bolts.

[0041] Please see Figures 1-3 and Figures 5-6 As a second embodiment of this utility model: Based on the first embodiment above, the user can fit the rotating ring 203 on the right end to the outside of the unloading shaft 114, and fix the two sets of connecting threaded holes 205 with bolts after they are concentric. The lower end of the flipping control mechanism 200 is attached to the mounting plate 115 through the mounting plate 201 and fixed with bolts. A set of rear cover 300 is fixed to the right side of the receiving box 101 with bolts, so that it can be easily disassembled and used.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical mill slag discharge port airlock unloading flap valve for cement production, comprising: The flap valve body (100) is characterized in that: the flap valve body (100) is provided with a receiving box (101) for conveying cement production waste residue; The receiving box (101) is equipped with a flipping control mechanism (200) for driving the unloading flap (107) to rotate to achieve auxiliary unloading. The receiving box (101) is equipped with a rear cover (300) for easy maintenance on the right side. The receiving box (101) is equipped with an unloading flap (107) for unloading control on the inner side of the lower end.

2. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 1, characterized in that: The upper surface of the receiving box (101) is provided with a collection trough (102) for collecting waste residue. The cross-section of the collection trough (102) is a trapezoidal structure that is wider at the top and narrower at the bottom. An expansion sealing ring (103) for improving sealing is fixedly connected to the lower surface of the collection trough (102).

3. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 2, characterized in that: The unloading flap (107) has an unloading shaft (114) that drives the unloading flap (107) to rotate through the inner side of the right end. A sealing bottom frame (108) is fixedly connected to the upper surface of the unloading flap (107). The sealing bottom frame (108) is sealed and fitted with the expanded sealing ring (103) after expansion.

4. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 3, characterized in that: The unloading flap (107) has two sets of symmetrically arranged rotating seats (112) fixedly connected to the front and rear sides of the right end of the upper surface. An auxiliary hydraulic rod (113) is rotatably connected between the two sets of rotating seats (112). The unloading shaft (114) is located at the right quarter of the unloading flap (107).

5. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 4, characterized in that: An expansion cavity (104) is provided inside the expansion sealing ring (103). An air bladder (106) is integrally connected to the receiving box (101) on the upper right side of the unloading flap (107). An air guide hole (105) is connected between the air bladder (106) and the expansion cavity (104).

6. The airlock unloading flap valve at the slag discharge port of a cement production vertical mill as described in claim 1, characterized in that: The flipping control mechanism (200) is provided with a main hydraulic rod (202) for driving the unloading shaft (114) to rotate. A rotating ring (203) is connected to the front side of the main hydraulic rod (202) by a pin. A linkage rod (204) is fixedly connected to the right side of the rotating ring (203).

7. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 6, characterized in that: The upper left side of the unloading flap (107) is fixedly connected to a bonding plate (109) for assisting in the conveying of waste residue, and the lower left side of the receiving box (101) is fixedly connected to a guide seat (110). The guide seat (110) is an inclined structure with the right side higher than the left side, and its upper right side is in contact with the lower surface of the bonding plate (109). The left side of the receiving box (101) is fixedly connected to the guide bucket (111).

8. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 6, characterized in that: A set of rotating rings (203) is also fixedly connected to the right side of the linkage rod (204). The rotating rings (203) and the outer side of the unloading shaft (114) are provided with connecting threaded holes (205). The rotating rings (203) on the right side are fitted to the outside of the unloading shaft (114) and fixed with bolts. The rear cover (300) is provided with a connecting ring seat (301), which is fixed to the right side of the receiving box (101) by bolts, and the cover body (302) is fixedly connected to the right side of the connecting ring seat (301).

9. The airlock unloading flap valve for the slag discharge port of a cement production vertical mill as described in claim 8, characterized in that: The flipping control mechanism (200) is also provided with a mounting plate one (201) for installation. The lower right end of the rear side of the receiving box (101) is fixedly connected to a mounting plate two (115). The mounting plate one (201) and the mounting plate two (115) are attached to each other and fixedly connected by bolts.

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