Orifice plate blanking valve

Abstract

The utility model discloses a hole plate blanking valve, including valve housing, fixed plate, movable plate and drive assembly, wherein, valve housing includes the material passing cavity along the first direction extension, and the top section of material passing cavity is equipped with the feed port, and the bottom section is the discharge port. One end of valve housing along the first direction is equipped with the middle part socket, and the middle part socket extends along the second direction. Fixed plate extends along the first direction and is located in the feed port. The top surface of fixed plate is equipped with a plurality of blanking holes along the first direction and the second direction interval. Movable plate is worn in the middle part socket along the first direction and includes the shielding section and the adjusting section, and the shielding section is located at the bottom of fixed plate and is equipped with the guide hole corresponding with a plurality of blanking holes. The adjusting section is located at one side of valve housing along the first direction. Drive assembly is arranged on the same side with the adjusting section and is transmission connection, is used for driving the adjusting section to move along the first direction relative to valve housing to adjust the center distance between adjacent blanking hole and guide hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to flow regulation technical field, concretely relates to a hole plate blanking valve. BACKGROUND

[0002] In engineering application, the valve with adjustability such as ball valve and butterfly valve is used to adjust the flow or pressure of medium such as gaseous, liquid and gas-solid mixture, and these regulating valves have been widely applied and deeply researched. However, in the field of heat exchange, especially in vertical heat exchanger, the flow transmission of solid material is difficult to be guaranteed to be planar flow in the vertical heat exchanger by traditional valve because the flowability of solid material is worse than liquid and the repose angle is larger, leading to uneven heat exchange. SUMMARY

[0003] In order to overcome the above-mentioned shortcomings, the utility model discloses a hole plate blanking valve to solve the problems in the above background.

[0004] In order to achieve the above purpose, the utility model adopts the technical scheme of a hole plate blanking valve, which comprises:

[0005] The valve housing comprises a material passing cavity extending along the first direction, the top section of the material passing cavity is provided as a feed inlet, and the bottom section is provided as a discharge outlet. One end of the valve housing along the first direction is provided with a middle socket, and the middle socket extends along the second direction.

[0006] The fixed plate extends along the first direction and is arranged in the feed inlet. The top surface of the fixed plate is provided with a plurality of blanking holes spaced apart along the first direction and the second direction.

[0007] The movable plate is arranged in the middle socket along the first direction and comprises a shielding section and an adjusting section. The shielding section is arranged at the bottom of the fixed plate and is provided with guide holes corresponding to the plurality of blanking holes. The adjusting section is arranged at one side of the valve housing along the first direction.

[0008] The driving assembly is arranged on the same side of the adjusting section and is drivingly connected to the adjusting section for driving the adjusting section to move relative to the valve housing along the first direction, so as to adjust the center distance between the adjacent blanking holes and the guide holes.

[0009] The hole plate blanking valve provided by the utility model can accurately adjust the center distance between the adjacent blanking holes and the guide holes by driving the adjusting section to move along the first direction by the driving assembly. The adjustable design makes the control of the blanking amount more accurate to adapt to different blanking speeds and amounts required by different production processes.

[0010] In some embodiments, the valve housing further comprises a bracket, a guide rail and a sliding block, the bracket is arranged below the shielding section and is spaced apart along the first direction. The bracket extends along the second direction and is connected to the inner wall of the valve housing at both ends. The guide rail is arranged on the top of the bracket and is spaced apart along the second direction, and extends along the first direction. The sliding block is arranged on the bottom of the shielding section and is connected to the guide rail in a sliding fit.

[0011] With the above technical solution, the sliding fit of the sliding block and the guide rail is a relatively simple and reliable movement connection mode. Compared with some complex mechanical transmission structures, this design reduces the failure points, improves the reliability of the valve, and makes the movement of the movable plate more stable and accurate, so as to ensure the linear movement of the movable plate along the first direction during the adjustment process, and avoid the shaking or deviation of the movable plate during the movement.

[0012] In some embodiments, the drive assembly comprises a mounting baffle, a driving device, a rotating bearing and a rotating rod, the mounting baffle is arranged at one end of the valve housing along the first direction and forms a limiting area with the valve housing. The adjusting section is suspended in the limiting area, and a remaining gap is arranged between the adjusting section and the mounting baffle along the first direction. The driving device and the rotating bearing are arranged at both ends of the mounting baffle along the second direction, respectively, and the rotating rod extends along the second direction and is in transmission connection with the driving device and the rotating bearing at both ends, respectively.

[0013] With the above technical solution, the rotating rod extends along the second direction and is in transmission connection with the driving device and the rotating bearing at both ends, respectively. This design ensures the stable transmission of the rotating rod. The rotating bearing can reduce friction and vibration during rotation, improve the stability and reliability of transmission.

[0014] In some embodiments, the drive assembly further comprises an adjusting gear and an adapter rack, the adjusting gear is sleeved on the rotating rod for driving the rotating rod and the adjusting gear to rotate along the circumference by the driving device, and the circumference surrounds the second direction. The adapter rack is arranged at the bottom of the adjusting section and is arranged correspondingly with the adjusting gear. The adapter rack extends along the first direction and has a tooth surface at the bottom for meshing connection with the adjusting gear.

[0015] With the above technical solution, the adapter rack is arranged at the bottom of the adjusting section and is in meshing connection with the adjusting gear. The linear movement of the rack can accurately convert the rotary movement of the gear into the linear movement of the adjusting section. By driving the rotating rod and the adjusting gear to rotate along the circumference by the driving device, the gear transmission has high precision and can ensure that the movement position of the adjusting section is very accurate, thereby realizing high-precision control of the discharging amount.

[0016] In some embodiments, the drive assembly further comprises a first limit switch, a second limit switch, and a positioning rod, the first limit switch and the second limit switch are disposed on the same side of the rotating bearing and are arranged on the side of the rotating bearing away from the valve housing along the first direction. The first limit switch and the second limit switch are arranged at intervals along the first direction, one end of the positioning rod is arranged between the first limit switch and the second limit switch along the second direction, and the other end is arranged through the mounting baffle and connected to the adjusting segment.

[0017] By adopting the above technical solution, the first limit switch and the second limit switch are arranged at intervals along the first direction, which can accurately control the movement range of the adjusting segment. By arranging the limit switch, it can be ensured that the adjusting segment moves within a predetermined range, avoiding damage or failure of components caused by excessive movement.

[0018] In some embodiments, the end of the fixing plate along the first direction and the second direction is welded and connected to the valve housing.

[0019] By adopting the above technical solution, welding is a very firm connection method, which can ensure that the fixing plate and the valve housing form an integral whole, effectively preventing the fixing plate from loosening or shifting due to vibration, impact or other external forces during long-term use.

[0020] In some embodiments, the blanking hole and the material guiding hole are one of a circular hole, a square hole, an oval hole or a waist-shaped hole.

[0021] By adopting the above technical solution, different shapes of holes can adapt to different characteristics of materials. For example, a circular hole is suitable for materials with uniform particles, a square hole is suitable for materials with larger particles, and an oval hole and a waist-shaped hole can be adjusted according to the shape and flow characteristics of the material. This design makes the valve adapt to a variety of different materials, including powders, particles, blocks, etc., improving the universality and applicability of the valve.

[0022] In some embodiments, the drive device is one of a motor or a pneumatic cylinder.

[0023] By adopting the above technical solution, the motor can realize precise motion control through a precise control system, and the pneumatic cylinder drive has the advantages of fast response speed, simple structure and low cost. Users can choose the most suitable driving method according to specific process requirements and working environment.

[0024] In some embodiments, along the first direction, the distance between the first limit switch and the second limit switch is less than the length of the retention gap.

[0025] By adopting the above technical solution, the first limit switch and the second limit switch are arranged to prevent excessive displacement of the movable plate.

[0026] In some embodiments, the bottom surface of the fixed plate and the top surface of the movable plate are both subjected to finishing treatment. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a sectional view of an embodiment of the perforated plate blanking valve of the utility model Figure 1 ;

[0028] Figure 2 It is a sectional view of an embodiment of the perforated plate blanking valve of the utility model Figure 2 , wherein the valve housing is set to an upside-down state;

[0029] Figure 3 It is a sectional view of an embodiment of the perforated plate blanking valve of the utility model

[0030] Figure 4 It is a structural schematic view of the fixed plate and the movable plate of an embodiment of the perforated plate blanking valve of the utility model

[0031] In the figure:

[0032] 1, perforated plate blanking valve; 2, valve housing; 20, material passing cavity; 21, feeding port; 22, discharging port; 23, middle port; 24, support; 25, guide rail; 26, sliding block; 3, fixed plate; 30, blanking hole; 4, movable plate; 40, shielding section; 41, material guiding hole; 42, adjusting section; 50, installation baffle; 51, limiting area; 52, retained gap; 53, driving device; 54, rotating bearing; 55, rotating rod; 56, adjusting gear; 57, adapter rack; 60, first limit switch; 61, second limit switch; 62, positioning rod. DETAILED DESCRIPTION

[0033] The preferred embodiments of the utility model are described in detail below with reference to the drawings, so that the advantages and features of the utility model can be more easily understood by those skilled in the art, and the protection scope of the utility model can be more clearly and explicitly defined.

[0034] Reference Figures 1 to 4 , Figure 1 It is a sectional view of an embodiment of the perforated plate blanking valve 1 provided by the utility model Figure 1 ; Figure 2 It is a sectional view of an embodiment of the perforated plate blanking valve 1 provided by the utility model Figure 2 , wherein the valve housing 2 is set to an upside-down state; Figure 3 It is a sectional view of an embodiment of the perforated plate blanking valve 1 provided by the utility model Figure 4The diagram shows a structural schematic of the fixed plate 3 and the movable plate 4 in an orifice plate feeding valve 1 provided by an embodiment of the present invention.

[0035] like Figures 1 to 4 As shown, the technical solution provided in this application is an orifice plate feeding valve 1, including a valve body 2, a fixed plate 3, a movable plate 4, and a drive assembly, wherein the valve body 2 includes a drive assembly along a first direction ( Figure 1 The material passage chamber 20 extends in the X direction (as shown in the middle), with the top section of the material passage chamber 20 serving as the inlet 21 and the bottom section as the outlet 22. The valve body 2 has a central insertion port 23 at one end along the first direction, and the central insertion port 23 extends along the second direction (as shown in the middle X direction). Figure 1 (As shown in the Y direction). The fixed plate 3 extends along the first direction and is disposed within the feed inlet 21. The top surface of the fixed plate 3 is provided with a plurality of discharge holes 30 spaced apart along the first and second directions. The movable plate 4 passes through the central insertion port 23 along the first direction and includes a blocking section 40 and an adjusting section 42. The blocking section 40 is disposed at the bottom of the fixed plate 3 and is provided with guide holes 41 corresponding to the plurality of discharge holes 30. The adjusting section 42 is disposed on one side of the valve body 2 along the first direction. The driving assembly is disposed on the same side as the adjusting section 42 and is connected to it for driving the adjusting section 42 to move relative to the valve body 2 along the first direction, thereby adjusting the center distance between adjacent discharge holes 30 and guide holes 41.

[0036] This application provides an orifice plate discharge valve 1 that utilizes the angle of repose of solid materials. A drive assembly moves the adjusting section 42 along a first direction, precisely adjusting the center distance between adjacent discharge holes 30 and guide holes 41. This achieves both sealing requirements and control of the discharge speed. This adjustable design allows for more precise control of the discharge volume, adapting to different discharge speeds and volumes required by various production processes. Furthermore, when the movable plate 4 and fixed plate 3 are completely offset, the valve can be fully closed using the angle of repose of the material. Specifically, the spacing between the fixed plate 3 and movable plate 4 varies depending on the angle of repose for each type of solid material. The arrangement of the holes also affects the sealing performance. Therefore, for different solid materials, the valve size, hole size and form, and hole arrangement must be determined based on the material flow rate and the physical properties of the solid material. Especially in vertical cooling or heating equipment, this valve can be made with a large cross-section to ensure uniform discharge, thereby ensuring uniform heat exchange, reducing the central flow of solid materials, and preventing uneven heat exchange.

[0037] In some embodiments, reference Figures 1 to 4The valve housing 2 further comprises a bracket 24, a guide rail 25 and a sliding block 26. The bracket 24 is arranged below the shielding section 40 and is spaced apart along the first direction. The bracket 24 extends along the second direction and is connected to the inner wall of the valve housing 2 at both ends. The guide rail 25 is arranged on the top of the bracket 24 along the second direction and extends along the first direction. The sliding block 26 is arranged on the bottom of the shielding section 40 and is connected to the guide rail 25 in a sliding manner.

[0038] Exemplarily, the sliding connection between the sliding block 26 and the guide rail 25 is a relatively simple and reliable movement connection mode. Compared with some complex mechanical transmission structures, this design reduces the failure points, improves the reliability of the valve, and makes the movement of the movable plate 4 more stable and accurate, so as to ensure the linear movement of the movable plate 4 along the first direction during the adjustment process and avoid the shaking or deviation of the movable plate 4 during the movement process. Further, the bracket 24 can be made of channel steel, square tube or I-beam, etc., and the bracket 24 is fixed by bolts. An adjusting device is installed on the side of the housing, which can adjust the vertical height of the bracket 24, so as to adjust the gap between the movable plate 4 and the fixed plate 3.

[0039] In some embodiments, referring to Figures 1 to 4 The driving assembly comprises a mounting baffle 50, a driving device 53, a rotating bearing 54 and a rotating rod 55. The mounting baffle 50 is arranged at one end of the valve housing 2 along the first direction and surrounds the valve housing 2 to form a limiting area 51. The adjusting section 42 is suspended in the limiting area 51 and has a remaining gap 52 between the mounting baffle 50 along the first direction. The driving device 53 and the rotating bearing 54 are arranged at both ends of the mounting baffle 50 along the second direction, respectively. The rotating rod 55 extends along the second direction and is in transmission connection with the driving device 53 and the rotating bearing 54 at both ends, respectively.

[0040] Exemplarily, the rotating rod 55 extends along the second direction and is in transmission connection with the driving device 53 and the rotating bearing 54 at both ends, respectively. This design ensures the stable transmission of the rotating rod 55. The rotating bearing 54 can reduce the friction and vibration during the rotation and improve the stability and reliability of the transmission.

[0041] In some embodiments, referring to Figures 1 to 4 The driving assembly further comprises an adjusting gear 56 and a connecting rack 57. The adjusting gear 56 is sleeved on the rotating rod 55 and is used to drive the rotating rod 55 and the adjusting gear 56 to rotate along the circumferential direction by the driving device 53, which is around the second direction. The connecting rack 57 is arranged on the bottom of the adjusting section 42 and is arranged correspondingly with the adjusting gear 56. The connecting rack 57 extends along the first direction and has a tooth surface on the bottom for meshing connection with the adjusting gear 56.

[0042] Exemplarily, the adapter rack 57 is arranged at the bottom of the adjusting section 42 and is in meshing connection with the adjusting gear 56. The linear motion of the rack can accurately convert the rotary motion of the gear into the linear motion of the adjusting section 42. By driving the rotary rod 55 and the adjusting gear 56 to rotate along the circumferential direction (indicated by the arrow θ) through the driving device 53, the gear transmission has high accuracy and can ensure that the motion position of the adjusting section 42 is very accurate, thereby realizing high-precision control of the discharging amount. Figure 3

[0043] In some embodiments, with reference to Figures 1 to 4 , the driving assembly further comprises a first limit switch 60, a second limit switch 61 and a positioning rod 62. The first limit switch 60 and the second limit switch 61 are arranged on the same side of the rotary bearing 54 and are arranged on the side of the rotary bearing 54 away from the valve housing 2 along the first direction. The first limit switch 60 and the second limit switch 61 are arranged in the first direction. One end of the positioning rod 62 is arranged between the first limit switch 60 and the second limit switch 61 along the second direction, and the other end is arranged through the connection between the mounting baffle 50 and the adjusting section 42.

[0044] Exemplarily, the first limit switch 60 and the second limit switch 61 are arranged in the first direction. The motion range of the adjusting section 42 can be accurately controlled. By arranging the limit switch, it can be ensured that the adjusting section 42 moves within a predetermined range, avoiding damage or failure of components caused by excessive movement.

[0045] In some embodiments, with reference to Figures 1 to 4 , the end of the fixed plate 3 along the first direction and the second direction is welded to the valve housing 2.

[0046] Exemplarily, welding is a very firm connection method, which can ensure that the fixed plate 3 and the valve housing 2 form an integral whole, effectively preventing the fixed plate 3 from loosening or shifting due to vibration, impact or other external forces during long-term use.

[0047] In some embodiments, with reference to Figures 1 to 4 , the discharging hole 30 and the guide hole 41 are one of a circular hole, a square hole, an oval hole or a waist-shaped hole.

[0048] Exemplarily, different shapes of holes can adapt to different characteristics of materials. For example, a circular hole is suitable for materials with uniform particles, a square hole is suitable for materials with larger particles, and an oval hole and a waist-shaped hole can be adjusted according to the shape and flow characteristics of the material. This design makes the valve adapt to a variety of different materials, including powder, particles, blocks, etc., improving the universality and applicability of the valve.

[0049] In some embodiments, with reference to Figures 1 to 4 , the driving device 53 is one of a motor or a pneumatic cylinder. ​

[0050] Exemplarily, the motor can realize precise motion control through a precise control system, and the cylinder drive has the advantages of fast response speed, simple structure and low cost, and the user can select the most suitable driving mode according to the specific process requirements and working environment.

[0051] In some embodiments, referring to Figures 1 to 4 , along the first direction, the distance between the first limit switch 60 and the second limit switch 61 is less than the length of the remaining gap 52.

[0052] Exemplarily, by setting the first limit switch 60 and the second limit switch 61, the over displacement of the movable plate 4 is prevented, and the component damage or material leakage caused by operation error or mechanical failure is avoided. Further, the entire stroke of the valve is determined by the entire stroke when the fixed plate 3 and the movable plate 4 are completely staggered, when the driving device 53 drives the movable plate 4 to move, the signal is transmitted to the power equipment through the first limit switch 60 and the second limit switch 61, and when the valve reaches the limit position, the power equipment is automatically stopped. The linear control of the valve is determined by the circumference of the rotating cooperation of the adjusting gear 56 and the adapter rack 57, and the opening size of the valve can be controlled by the control program, or the opening size of the valve can be controlled by the positioning of the positioning rod 62, the first limit switch 60 and the second limit switch 61.

[0053] In some embodiments, referring to Figures 1 to 4 , the bottom surface of the fixed plate 3 and the top surface of the movable plate 4 are both subjected to finishing treatment.

[0054] Exemplarily, the fixed plate 3 bears the weight of the material, adopts a thick plate, and the bottom surface of the fixed plate 3 is subjected to finishing treatment to ensure the flatness of the bottom surface of the valve. The movable plate 4 does not directly bear the weight, adopts a thin plate, and the top surface also needs to be subjected to finishing treatment to ensure the flatness of the top surface.

[0055] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the person skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application, any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A perforated plate feed valve, characterized in that, include: The valve body includes a material passage chamber extending in a first direction, wherein the top section of the material passage chamber is a material inlet and the bottom section is a material outlet; The valve body has a central inlet at one end along the first direction, and the central inlet extends along the second direction; A fixing plate extends along the first direction and is disposed within the feed inlet; the top surface of the fixing plate is provided with a plurality of discharge holes spaced apart along the first direction and the second direction; A movable plate, passing through the central insertion port along the first direction, includes a blocking section and an adjusting section. The blocking section is located at the bottom of the fixed plate and has guide holes corresponding to the plurality of discharge holes. The adjusting section is located on one side of the valve housing along the first direction. A drive assembly, disposed on the same side as and connected to the adjustment section, is used to drive the adjustment section to move relative to the valve housing along the first direction, thereby adjusting the center distance between adjacent discharge holes and guide holes.

2. The orifice plate feed valve according to claim 1, characterized in that, The valve housing further includes a bracket, a guide rail, and a slider. The bracket is located below the shielding section and is spaced apart along the first direction. The bracket extends along the second direction and its two ends are connected to the inner wall of the valve housing. The guide rail is spaced apart at the top of the bracket along the second direction and extends along the first direction. The slider is located at the bottom of the shielding section and is slidably connected to the guide rail.

3. The orifice plate feeding valve according to claim 2, characterized in that, The drive assembly includes a mounting baffle, a drive device, a rotary bearing, and a rotating rod. The mounting baffle is located at one end of the valve housing along the first direction and forms a limiting area with the valve housing. The adjusting section is suspended within the limiting area and has a clearance between it and the mounting baffle along the first direction. The drive device and the rotary bearing are respectively located at both ends of the mounting baffle along the second direction. The rotating rod extends along the second direction and its two ends are respectively connected to the drive device and the rotary bearing for transmission.

4. The orifice plate feed valve according to claim 3, characterized in that, The drive assembly further includes an adjusting gear and a transition rack. The adjusting gear is sleeved on the rotating rod and is used to drive the rotating rod and the adjusting gear to rotate circumferentially through the drive device. The circumferential direction surrounds the second direction. The transition rack is located at the bottom of the adjusting section and is correspondingly arranged with the adjusting gear. The transition rack extends along the first direction and has a toothed surface at its bottom that meshes with the adjusting gear.

5. The orifice plate feeding valve according to claim 4, characterized in that, The drive assembly further includes a first limit switch, a second limit switch, and a positioning rod. The first limit switch and the second limit switch are disposed on the same side as the rotating bearing and on the side of the rotating bearing away from the valve housing along the first direction. The first limit switch and the second limit switch are spaced apart along the first direction. One end of the positioning rod along the second direction is placed between the first limit switch and the second limit switch, and the other end passes through the mounting baffle and connects to the adjusting section.

6. The orifice plate feed valve according to claim 5, characterized in that, The ends of the fixing plate along the first direction and the second direction are welded to the valve body.

7. The orifice plate feed valve according to claim 6, characterized in that, The feeding hole and the guiding hole are one of the following: round hole, square hole, elliptical hole, or oblong hole.

8. The orifice plate feed valve according to claim 7, characterized in that, The driving device is either an electric motor or a cylinder.

9. The orifice plate feed valve according to claim 8, characterized in that, Along the first direction, the distance between the first limit switch and the second limit switch is less than the length of the retention gap.

10. The orifice plate feed valve according to claim 9, characterized in that, The bottom surface of the fixed plate and the top surface of the movable plate are both precision machined.

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