A grid-type gate valve

Abstract

The utility model relates to valve technical field, concretely is a kind of grating formula gate valve, including upper valve assembly and lower valve assembly, the closing route of upper valve assembly and the closing route of lower valve assembly upside-down distribution and each other perpendicularity;Upper valve assembly and lower valve assembly are all arranged in same valve body frame, and the valve body frame is provided with pass-through opening.The utility model discloses a kind of grating formula gate valve, the closing route of upper valve assembly and the closing route of lower valve assembly upside-down distribution and each other perpendicularity setting, blocky lime is broken or blocked in the upper valve assembly above by upper valve assembly, then lower valve assembly is closed, double valve assembly setting, can better realize closing effect, double protection, so that blocky lime and powdery lime are all tightly blocked, ensure that maintenance work is carried out smoothly.Not only simple structure, but also convenient to use, more is to realize the switching practicability, economy selection of easy caking powdery material.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a grille-type slide gate valve. Background Technology

[0002] In the causticizing process of alkali recovery in papermaking, the coordinated operation of the lime silo and the screw metering device is a core element ensuring the stable and efficient causticizing reaction. The lime silo is located at the top for lime feeding, while the screw metering device is located at the bottom for weighing. When maintenance is required, the outlet of the lime silo at the top needs to be closed to prevent lime from falling. However, existing technologies often use slide valves to control the opening and closing of the inlet and outlet of powdery materials such as lime. However, lime is highly hygroscopic and can quickly absorb moisture from the air. When the ambient humidity is high, the lime absorbs moisture and accelerates clumping. When clumped lime falls into the slide valve at the lime silo outlet, the slide valve's plate may be restricted by the hardness of the lumps, causing the lime to become stuck at the closing point, creating numerous gaps and preventing a tight closure of the slide valve. Consequently, some powdery lime can still fall into the screw metering device through these gaps, making maintenance impossible. Therefore, the existing technology clearly has inconveniences and shortcomings in practical use, and improvements are necessary. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a grid-type slide gate valve, which solves the problem in the prior art that slide gate valves cannot seal block lime, causing powdered lime to fall and making maintenance impossible.

[0004] To achieve the above objectives, this utility model provides a grid-type slide gate valve, including an upper valve assembly and a lower valve assembly. The closing paths of the upper valve assembly and the lower valve assembly are distributed vertically and perpendicular to each other. The upper valve assembly and the lower valve assembly are both mounted on the same valve body frame, and the valve body frame is provided with a feed port.

[0005] As a preferred technical solution, the upper valve assembly includes multiple insert rods that form a grid structure; the insert rods are slidably disposed on the upper part of the material inlet.

[0006] As a preferred technical solution, one end of the insertion rod is provided with a handle and the other end is provided with a spike; the handle is located outside the material passage, and the spike is located inside the material passage.

[0007] As a preferred technical solution, a plurality of first sliding holes are provided on the valve body frame located at the material outlet; support plates are provided on both sides of the valve body frame 1, and the two support plates are arranged in a mirror symmetrical manner, and a second sliding hole is opened on the support plate; a plug sleeve is connected between the second sliding hole and the first sliding hole, and the plug is slidably inserted into the plug sleeve.

[0008] As a preferred technical solution, multiple insertion rods are arranged in two columns, and the two columns of insertion rods are distributed vertically to form two layers, with the insertion rods in the two layers being staggered.

[0009] As a preferred technical solution, the lower valve assembly includes a slide plate, which is slidably disposed at the lower part of the feed port. The slide plate is connected to a lead screw, which drives the slide plate to move back and forth.

[0010] As a preferred technical solution, a slide plate support frame is provided inside the feed port, and the slide plate support frame is installed on the valve body frame; there are two sets of slide plate support frames, which are respectively set at the starting point and the ending point of the slide plate. Each set of slide plate support frames includes right-angled tripods that are mirrored and symmetrically arranged, and a gap is provided between the upper and lower right-angled tripods for supporting the slide plate.

[0011] As a preferred technical solution, one side of the insert plate is connected to one end of the lead screw via a lead screw nut, and the other end of the lead screw passes through the valve body frame and is connected to a handwheel.

[0012] As a preferred technical solution, the lead screw is disposed in the cavity of the valve body frame, and the cavity is located on one side of the material outlet; both the upper and lower sides of the cavity are covered with cover plates, and a sealing pressure plate is disposed between the cavity and the material outlet, and an insertion plate hole is disposed on the sealing pressure plate, and the insertion plate moves back and forth in the insertion plate hole.

[0013] As a preferred technical solution, an asbestos rope is provided on the side of the sealing pressure plate near the material inlet, and an inclined washer is fitted on the asbestos rope. This utility model provides a grid-type slide gate valve, in which the closing paths of the upper valve assembly and the lower valve assembly are vertically distributed and perpendicular to each other. Lump lime is broken or blocked above the upper valve assembly, and then the lower valve assembly is closed. The dual valve assembly configuration achieves better closure and provides double protection, ensuring that both lumpy and powdery lime are tightly blocked, guaranteeing smooth maintenance work. It is not only simple in structure and easy to use, but also a practical and economical choice for switching on and off easily agglomerated powdery materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the grille-type slide gate valve of this utility model; Figure 2 This is a top view of the grille-type slide gate valve of this utility model; Figure 3 This is a cross-sectional view of the grille-type slide valve of this utility model; Figure 4 This is a left view of the grille-type slide valve of this utility model; Figure 5 This is a right view of the grille-type slide valve of this utility model; Figure 6 This is a schematic diagram showing the installation position of the grille-type slide gate valve of this utility model; In the picture: 1-Valve body frame, 2-Rhomboid flange bearing seat, 3-Cover plate, 4-Screw nut, 5-Insertion rod, 6-Screw rod, 7-Handwheel, 8-Sealing pressure plate, 9-Insertion plate, 10-Slanted washer, 11-Asbestos rope, 12-Handle, 13-Support plate, 14-Insertion rod sleeve, 15-Insertion plate support frame, 16-Passage port, 17-First sliding hole, 18-Feed pipe, 19-Lime silo, 20-Screw metering device, 21-Cavity, 51-Spike part, 81-Insertion plate hole, 170-Second sliding hole. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0016] Example 1: See Figure 1 Figure 3 shows that this utility model provides a grid-type slide gate valve, including an upper valve assembly and a lower valve assembly. The closing paths of the upper valve assembly and the lower valve assembly are distributed vertically and perpendicular to each other. The dual valve assembly configuration can better achieve the closing effect of the grid-type slide gate valve of this utility model.

[0017] Both the upper and lower valve assemblies are mounted on the same valve body frame 1, which has a feed port 16. The upper and lower valve assemblies work together to close the feed port 16. Figure 2 The left, right, front, and back are described in the middle. The upper valve assembly moves back and forth to open and close the upper layer of the material port 16; the lower valve assembly moves left and right to open and close the lower layer of the material port 16.

[0018] The upper valve assembly includes multiple insert rods 5, which form a grid structure; the insert rods 5 are slidably disposed on the upper part of the feed port 16.

[0019] See Figures 1 to 5The insertion rod 5 has a handle 12 at one end and a spike 51 at the other end. The handle 12 is located outside the feed port 16, and the spike 51 is located inside the feed port 16. Furthermore, the valve body frame 1 located at the feed port 16 has a plurality of first sliding holes 17, and the insertion rod 5 slides back and forth in the corresponding first sliding hole 17.

[0020] The multiple insertion rods 5 are arranged in two rows, one on the left and one on the right, and the two rows of insertion rods 5 are distributed vertically to form two layers. The insertion rods 5 in the two layers are staggered. This arrangement creates a small gap between adjacent insertion rods 5 in the upper and lower layers, and the spikes 51 will pierce the lumps of lime, preventing the lumps of lime from affecting the closure of the valve port, and smoothly completing the closure of the upper valve assembly.

[0021] To prevent the insertion rod 5 from wobbling during the pulling process and to maintain a relatively stable horizontal movement, support plates 13 are provided on both sides of the valve body frame 1, with the two support plates 13 arranged symmetrically in mirror image. A second sliding hole 170 is provided on each support plate 13, and an insertion rod sleeve 14 connects the second sliding hole 170 and the first sliding hole 170. The insertion rod 5 is slidably inserted into the insertion rod sleeve 14. Through the cooperation of the second sliding hole 170, the first sliding hole 170, and the insertion rod sleeve 14, it is ensured that the insertion rod 5 will not slide downwards during its back-and-forth movement, resulting in higher horizontality and stronger stability.

[0022] Furthermore, when not in use, the spike 51 of the insert rod 5 can be retracted into the insert rod sleeve 14 at the support plate 13, without the need to disassemble the insert rod 5. When used next time, the handle 12 can be pushed directly to push the insert rod 5 into the feed port 16.

[0023] During operation, all the insert rods 5 can be pulled out of the material outlet 16 according to actual needs, or only some of the insert rods 5 can be pulled out of the material outlet 16. The insert rods 5 that are not pulled out can be distributed at equal or unequal intervals. At this time, the interval between the insert rods 5 that are not pulled out is relatively large, so that the gap between adjacent pull rods 5 is large enough to allow the block lime to fall from the lime silo 19 into the screw metering device 20.

[0024] See Figures 1 to 3 The lower valve assembly includes a slide plate 9, which is slidably disposed at the lower part of the feed port 16. The slide plate 9 is connected to a lead screw 6, which drives the slide plate 9 to move back and forth.

[0025] The insert plate 9 is slidably installed inside the feed port 16 and located below the upper valve assembly. Specifically, a insert plate support frame 15 is provided inside the feed port 16, and the insert plate support frame 15 is installed on the valve body frame 1. There are two sets of insert plate support frames 15, respectively located at the starting point and the ending point of the insert plate 9. Each set of insert plate support frames 15 includes a right-angled tripod that is mirrored and symmetrically arranged, with a gap between the upper and lower right-angled tripods for supporting the insert plate 9.

[0026] One side of the insert plate 9 is connected to one end of the lead screw 6 via a lead screw nut 4. The other end of the lead screw 6 extends out of the valve body frame 1 and is connected to a handwheel 7. A diamond-shaped flange bearing seat 2 is provided at the position where the lead screw 6 extends out of the valve body frame 1. Under the action of the handwheel 7, the lead screw 6 rotates through the diamond-shaped flange bearing seat 2, thereby driving the insert plate 9 to move back and forth.

[0027] The lead screw 6 is disposed within the cavity 21 of the valve body frame 1, which is located on one side of the material inlet 16. Cover plates 3 are provided on both the upper and lower sides of the cavity 21. To further prevent lumpy or powdery lime from entering the cavity 21, a sealing pressure plate 8 is provided between the cavity 21 and the material inlet 16. The sealing pressure plate 8 has an insertion plate hole 81, and the insertion plate 9 can move back and forth within the insertion plate hole 81 under the drive of the lead screw 6. When the insertion plate 9 moves to the fully open position of the material inlet 16, this is the starting point of the insertion plate 9; when the insertion plate 9 moves to the fully closed position of the material inlet 16, this is the ending point of the insertion plate 9.

[0028] Furthermore, to enhance the sealing performance of the insert plate 9 as it moves within the insert plate hole 81, an asbestos rope 11 is provided on the side of the sealing pressure plate 8 near the material outlet 16, and a beveled washer 10 is fitted onto the asbestos rope 11. (See [reference]) Figure 3 .

[0029] See Figure 6 The grid-type slide gate valve of this utility model is installed between the lime silo 19 and the screw metering device 20. Furthermore, a feed pipe 18 is provided between the lime silo 19 and the screw metering device 20, and the grid-type slide gate valve is installed at the connection between the feed pipe 18 and the screw metering device 20 and fixed by a corresponding support frame.

[0030] Example 2: This utility model also provides a grid-type slide valve, which differs from the above embodiments in that multiple slide rods 5 are arranged on the same side.

[0031] This utility model provides a grid-type slide gate valve, in which the closing paths of the upper valve assembly and the lower valve assembly are vertically distributed and perpendicular to each other. Lumpy lime is broken or blocked above the upper valve assembly before the lower valve assembly is closed. This dual-valve configuration achieves better closure and provides double protection, ensuring a tight seal against both lumpy and powdery lime, guaranteeing smooth maintenance. It is not only simple in structure and easy to use, but also a practical and economical option for controlling the operation of easily agglomerated powdery materials.

[0032] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A grille-type slide gate valve, characterized in that, It includes an upper valve assembly and a lower valve assembly. The closing paths of the upper valve assembly and the lower valve assembly are distributed vertically and perpendicular to each other. The upper valve assembly and the lower valve assembly are both set on the same valve body frame (1). The valve body frame (1) is provided with a feed port (16).

2. A grille-type slide gate valve according to claim 1, characterized in that, The upper valve assembly includes multiple insert rods (5), which form a grid structure; the insert rods (5) are slidably disposed on the upper part of the feed port (16).

3. A grille-type slide gate valve according to claim 2, characterized in that, One end of the insertion rod (5) is provided with a handle (12) and the other end is provided with a spike (51); the handle (12) is located outside the feed port (16) and the spike (51) is located inside the feed port (16).

4. A grille-type slide gate valve according to claim 3, characterized in that, A plurality of first sliding holes (17) are provided on the valve body frame (1) located at the feed port (16); support plates (13) are provided on both sides of the valve body frame (1), and the two support plates (13) are arranged in a mirror symmetrical manner. A second sliding hole (170) is provided on the support plate (13); a plug sleeve (14) is connected between the second sliding hole (170) and the first sliding hole (17), and the plug (5) is slidably inserted into the plug sleeve (14).

5. A grille-type slide gate valve according to any one of claims 2 to 4, characterized in that, Multiple insertion rods (5) are arranged in two columns on the left and right, and the two columns of insertion rods (5) are distributed vertically to form two layers, with the insertion rods (5) in the two layers being staggered.

6. A grille-type slide gate valve according to claim 1, characterized in that, The lower valve assembly includes a slide plate (9), which is slidably disposed at the lower part of the feed port (16). The slide plate (9) is connected to a lead screw (6), which drives the slide plate (9) to move back and forth.

7. A grille-type slide gate valve according to claim 6, characterized in that, The feed port (16) is provided with a plate support frame (15), which is installed on the valve body frame (1). There are two sets of plate support frames (15), which are respectively set at the starting point and the ending point of the plate (9). Each set of plate support frames (15) includes a right-angled tripod that is mirrored and symmetrically arranged. There is a gap between the upper and lower right-angled tripods, which is used to support the plate (9).

8. A grille-type slide gate valve according to claim 6, characterized in that, One side of the insert plate (9) is connected to one end of the screw (6) via a screw nut (4), and the other end of the screw (6) passes through the valve body frame (1) and is connected to a handwheel (7).

9. A grille-type slide gate valve according to claim 8, characterized in that, The lead screw (6) is located in the cavity (21) of the valve body frame (1), and the cavity (21) is located on one side of the feed port (16). The upper and lower sides of the cavity (21) are covered with cover plates (3). A sealing pressure plate (8) is provided between the cavity (21) and the feed port (16). The sealing pressure plate (8) is provided with a plate insertion hole (81). The plate insertion plate (9) moves back and forth in the plate insertion hole (81).

10. A grille-type slide gate valve according to claim 9, characterized in that, An asbestos rope (11) is provided on the side of the sealing pressure plate (8) near the material outlet (16), and an inclined washer (10) is fitted on the asbestos rope (11).

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