Valve plate structure for staggered pore plate regulating valve

Abstract

The valve plate structure comprises a shell, a material distribution plate is arranged in the middle of the inner side face of the shell, evenly-distributed material distribution holes are formed in the upper surface of the material distribution plate, and a movable plate capable of blocking the material distribution holes is arranged on the lower side of the material distribution plate. A plurality of strip-shaped holes distributed at equal intervals are formed in the movable plate, when the strip-shaped holes face the material distribution holes, the materials move downwards, a driver for driving the movable plate to move is arranged at the bottom of one side of the movable plate, and an adjusting seat for supporting and adjusting the movable plate is arranged on the inner side face of the shell. According to the valve plate structure for the staggered pore plate adjusting valve, a staggered structure is adopted to control closing and opening of the valve, the movable plate can be prevented from rubbing the material distribution plate when the valve is opened, abrasion between the movable plate and the material distribution plate can be reduced, and therefore the sealing performance between the movable plate and the material distribution plate is improved, the service life of the whole valve plate structure is prolonged, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve plate structure for a misaligned orifice regulating valve. Background Art

[0002] In the production process of alumina, the roasting process is one of the processes with the most energy consumption and the highest production cost. Patent No. 211854996 discloses a vertical waste heat recovery device, and its specification mentions that "a regulating valve for adjusting the discharge flow rate is provided corresponding to the discharge port; according to needs, the regulating valve at the position of the discharge port is a pneumatic orifice regulating valve". Combining the alumina production process, pneumatic slide valves, and the existing mesh orifice regulating valve technology, the pneumatic orifice regulating valve used in this patent is a misaligned regulating valve, which mainly includes a fixed plate with holes and a moving plate with holes arranged in parallel, and a track for supporting the movement of the moving plate is provided. During use, the holes of the moving plate are aligned or misaligned with the holes of the fixed plate by driving the moving plate with holes, so as to complete the opening or closing of the valve.

[0003] When the above-mentioned misaligned regulating valve is in use, in order to ensure the seal between the fixed plate and the moving plate, while ensuring the flatness of the contact surface between the two, the gap between the two plates should be reduced as much as possible to prevent alumina powder from flowing along the gap. However, when the valve is opened and closed, the moving plate always keeps in contact and friction with the fixed plate during movement, resulting in wear of the contact surfaces of the fixed plate and the moving plate, generating a gap between the two, reducing the sealing performance of the valve, and thus reducing the service life of the valve. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, and provide a valve plate structure for a misaligned orifice regulating valve. The misaligned structure is adopted to control the closing and opening of the valve, which can avoid the friction between the movable plate and the cloth plate when the valve is opened, reduce the wear between the movable plate and the cloth plate, improve the sealing performance between the movable plate and the cloth plate, and extend the service life of the entire valve plate structure. It is convenient to use and can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A valve plate structure for a misaligned orifice regulating valve, including a housing, a cloth plate is arranged in the middle of the inner side surface of the housing, uniformly distributed cloth holes are opened on the upper surface of the cloth plate, a movable plate capable of blocking the cloth holes is arranged below the cloth plate, a number of equally spaced strip holes are opened on the movable plate, and when the strip holes are aligned with the cloth holes, the material moves downward. A driver for driving its movement is arranged at the bottom of one side of the movable plate, and an adjusting seat for supporting and adjusting the movable plate is arranged on the inner side surface of the housing.

[0006] As a preferred technical solution of the present utility model, the adjusting seat includes two driving shafts rotatably arranged on the housing. Both ends of the driving shaft penetrate and are exposed outside the housing, and one end of the driving shaft is connected to an external driving device. Cams are provided at both ends of the driving shaft located inside the housing, and grooves are provided at the bottom of the movable plate corresponding to the cams.

[0007] As a preferred technical solution of the present utility model, when the cam rotates by ninety degrees, the height of the end of the movable plate close to the driver is higher than the height of the end of the movable plate far from the driver.

[0008] As a preferred technical solution of the present utility model, the driver includes a fixed seat installed at the bottom of one end of the movable plate. An adjusting hole vertically arranged is provided on the side of the fixed seat. A pin shaft is movably inserted inside the adjusting hole, and the pin shaft is installed on a nut seat. A driving screw is screwed inside the threaded hole of the nut seat. The driving screw is rotatably arranged on the housing, and one end of the driving screw exposed outside the housing is connected to an external driving mechanism.

[0009] As a preferred technical solution of the present utility model, a diversion plate in contact with the upper surface of the cloth plate is provided on the inner side surface of the housing.

[0010] As a preferred technical solution of the present utility model, mounting flanges are provided at both the upper and lower ends of the housing.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] The valve plate structure of the offset orifice regulating valve in the example of the present utility model adopts an offset structure to control the closing and opening of the valve, which can avoid the friction between the movable plate and the cloth plate when the valve is opened, reduce the wear between the movable plate and the cloth plate, thereby improving the sealing performance between the movable plate and the cloth plate, and extending the service life of the entire valve plate structure, and is convenient to use. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is Figure 1 the upward view structural diagram of

[0015] Figure 3 is a schematic structural diagram of the present utility model after removing the housing;

[0016] Figure 4 is Figure 3 the upward view structural diagram of

[0017] Figure 5 is a schematic structural diagram of the valve plate structure in the open state;

[0018] Figure 6 It is a structural schematic diagram of the closed state of the valve plate structure.

[0019] In the figure: 1 housing, 2 cloth plate, 21 diversion plate, 3 movable plate, 31 groove, 32 strip hole, 4 drive shaft, 41 cam, 5 fixed seat, 51 adjustment hole, 6 nut seat, 61 pin shaft, 62 drive screw. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-6 , the present invention provides a technical solution: a valve plate structure for a misaligned orifice regulating valve, including a housing 1. In the middle of the inner side surface of the housing 1, there is a cloth plate 2. The upper surface of the cloth plate 2 is provided with evenly distributed cloth holes. Below the cloth plate 2, there is a movable plate 3 that can block the cloth holes. A number of equidistantly distributed strip holes 32 are provided on the movable plate 3. When the strip holes 32 are aligned with the cloth holes, the material moves down. A misaligned structure is adopted to control the closing and opening of the valve. At the bottom of one side of the movable plate 3, there is a driver for driving its movement, and on the inner side surface of the housing 1, there is an adjustment seat for supporting and adjusting the movable plate 3.

[0022] Furthermore, the adjustment seat includes two drive shafts 4 rotatably arranged on the housing 1. The two ends of the drive shaft 4 penetrate and are exposed outside the housing 1. One end of the drive shaft 4 is connected to an external drive device. At both ends of the drive shaft 4 inside the housing 1, there are cams 41. At the bottom of the movable plate 3 corresponding to the cams 41, there are grooves 31. When the cam rotates 90 degrees, the height of the end of the movable plate 3 close to the driver is higher than the height of the end of the movable plate 3 far from the driver. When the valve needs to be opened, the external drive device controls the drive shaft 4 to rotate, and the drive shaft 4 drives the cam 41 to rotate, so that the movable plate 3 is in the state as shown in Figure 5 . At this time, there is a certain gap between the movable plate 3 and the cloth plate 2, and the movable plate 3 no longer rubs against the cloth plate 2 when moving horizontally.

[0023] Further, the driver includes a fixed seat 5 installed at the bottom of one end of the movable plate 3. A vertically arranged adjustment hole 51 is provided on the side of the fixed seat 5. A pin shaft 61 is movably inserted inside the adjustment hole 51, and the pin shaft 61 is installed on the nut seat 6. A driving screw 62 is screwed inside the threaded hole of the nut seat 6. The driving screw 62 is rotatably arranged on the housing 1, and one end of the driving screw 62 exposed outside the housing 1 is connected to an external driving mechanism. The external driving mechanism controls the rotation of the driving screw 62. During the rotation of the driving screw 62, the nut seat 6 moves along the driving screw 62. The nut seat 6 drives the movable plate 3 to move on the cam 41 through the pin shaft 61 and the fixed seat 5, so that the strip-shaped hole 32 corresponds to the cloth hole, and then the valve is opened for uniform cloth feeding operation.

[0024] Further, a diversion plate 21 in contact with the upper surface of the cloth plate 2 is provided on the inner side surface of the housing 1, which is convenient for guiding the material.

[0025] Further, mounting flanges are provided at both the upper and lower ends of the housing 1, which is convenient for the installation of the entire valve plate structure.

[0026] During use:

[0027] Connect the external driving mechanism to the driving screw 62, and connect the external driving device to the driving shaft 4. The external driving mechanism can control the forward and reverse rotation of the driving screw 62, and the external driving device can control the forward and reverse rotation of the driving shaft 4;

[0028] In the initial state as Figure 6 shown, when the valve needs to be opened, the external driving device controls the rotation of the driving shaft 4, and the driving shaft 4 drives the cam 41 to rotate, so that the movable plate 3 is in the state as Figure 5 shown;

[0029] The external driving mechanism controls the rotation of the driving screw 62. During the rotation of the driving screw 62, the nut seat 6 moves along the driving screw 62. The nut seat 6 drives the movable plate 3 to move on the cam 41 through the pin shaft 61 and the fixed seat 5, so that the strip-shaped hole 32 corresponds to the cloth hole, and then the valve is opened for uniform cloth feeding operation; the state after the valve is opened is as Figure 5 shown;

[0030] During the above process, since the movable plate 3 first tilts and then moves horizontally, the material will automatically slide down after falling on the inclined movable plate 3. Therefore, no material will remain on the movable plate 3, and no horizontal sliding friction is generated between the movable plate 3 and the cloth plate 2 during this process, avoiding the wear of the cloth plate 2 and the movable plate 3;

[0031] When the valve needs to be closed, the external driving device controls the driving shaft 4 to rotate in the reverse direction, and the driving shaft 4 drives the cam 41 to rotate. The cam 41 jacks up the movable plate 3 and contacts the bottom of the cloth plate 2;

[0032] Then the external driving mechanism controls the driving screw 62 to rotate in the reverse direction. During the rotation of the driving screw 62, the nut seat 6 moves along the driving screw 62. The nut seat 6 drives the movable plate 3 to move on the cam 41 through the pin shaft 61 and the fixed seat 5, so that the strip hole 32 on the movable plate 3 is misaligned with the cloth hole, thereby closing the valve.

[0033] The utility model adopts a misaligned structure to control the opening and closing of the valve, which can avoid the friction between the movable plate 3 and the cloth plate 2 when the valve is opened, reduce the wear between the movable plate 3 and the cloth plate 2, improve the sealing performance between the movable plate 3 and the cloth plate 2, and extend the service life of the entire valve plate structure, making it convenient to use.

[0034] The parts not disclosed in the utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated in detail. Although the embodiments of the utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A valve plate structure for a staggered orifice regulating valve, comprising a housing (1), characterized in that: A material distribution plate (2) is provided in the middle of the inner side surface of the shell (1), and evenly distributed material distribution holes are provided on the upper surface of the material distribution plate (2). A movable plate (3) capable of blocking the material distribution holes is provided on the lower side of the material distribution plate (2), and a plurality of equally distributed strip holes (32) are provided on the movable plate (3), and when the strip holes (32) are aligned with the material distribution holes, the material moves downward. A driver for driving the movable plate (3) to move is provided at the bottom of one side, and an adjustment seat for supporting and adjusting the movable plate (3) is provided on the inner side surface of the shell (1).

2. The valve plate structure for the offset orifice regulating valve according to claim 1, characterized in that: The adjustment seat comprises two drive shafts (4) rotatably arranged on the housing (1), the two ends of the drive shaft (4) passing through and exposed on the outside of the housing (1), and one end of the drive shaft (4) connected to an external drive device, the two ends of the drive shaft (4) located inside the housing (1) are provided with cams (41), and the bottom of the movable plate (3) corresponding to the cam (41) is provided with a groove (31).

3. The valve plate structure for the offset orifice regulating valve according to claim 2, characterized in that: When the strip-shaped hole (32) is aligned with the cloth hole, the height of the end of the movable plate (3) close to the driver is higher than the height of the end of the movable plate (3) away from the driver.

4. The valve plate structure for the offset orifice regulating valve according to claim 1, characterized in that: The driver comprises a fixing seat (5) mounted at the bottom of one end of the movable plate (3), a side surface of the fixing seat (5) is provided with a vertically arranged adjustment hole (51), a pin shaft (61) is movably inserted inside the adjustment hole (51), and the pin shaft (61) is mounted on a nut seat (6), a driving screw rod (62) is condensed on the internal thread of the screw hole of the nut seat (6), the driving screw rod (62) is rotatably arranged on the shell (1), and one end of the driving screw rod (62) exposed outside the shell (1) is connected to an external driving mechanism.

5. The valve plate structure for the offset orifice regulating valve according to claim 1, characterized in that: The inner side surface of the shell (1) is provided with a guide plate (21) in contact with the upper surface of the material distribution plate (2).

6. The valve plate structure for the offset orifice regulating valve according to claim 1, characterized in that: The upper and lower ends of the shell (1) are both provided with mounting flanges.

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