Ultra-large electro-hydraulic plunger valve

Abstract

The ultra-large electro-hydraulic plunger valve comprises a gate frame, plunger sets, a cross beam and hydraulic oil cylinders, the hydraulic oil cylinders are oppositely arranged on the two sides of the gate frame respectively, the telescopic ends of the hydraulic oil cylinders are connected with the cross beam and drive the cross beam to move in a reciprocating mode, the multiple plunger sets are installed on the cross beam, and the plunger sets are inserted into the two opposite sides of a valve opening of the gate frame respectively. The inserting rods in the inserting rod sets on the two opposite sides are inserted in a staggered mode. The device adapts to a heavy-load stock bin; the oil cylinder is arranged on the side of the gate frame to save space; selective insertion and extraction are achieved through the electric pin insertion and extraction device, the opening size can be manually controlled, and the discharging amount can be adjusted; when the rod valve is closed, if a material block is clamped between the two inserting rods and cannot be closed, the rod valve automatically returns, the block material falls, the rod valve is closed again and repeated for multiple times, complete closing is guaranteed, and material leakage of the rod valve is prevented.

Description

Technical Field

[0001] This invention relates to the field of valve device technology, specifically to an ultra-large electro-hydraulic rod valve that can meet the closing requirements of ultra-large silos. Background Technology

[0002] Electro-hydraulic rod valves are industrial valves used to control the flow rate of bulk materials such as solid particles and powders. Combining electric and hydraulic drive technologies, they enable remote automated control. Their working principle utilizes the internal friction between material particles larger than the gap distance to impede material flow. They are widely used in metallurgy, mining, building materials, power, chemical, and environmental protection industries, and are particularly suitable for material conveying systems under high dust, high temperature, or heavy load conditions. They are suitable for granular, crystalline, or lumpy materials.

[0003] Currently, electro-hydraulic spool valves have small diameters, low pressure resistance, and are driven manually, by pneumatic cylinders, or by hydraulic cylinders, making them unsuitable for automated control and unable to meet the requirements for closing ultra-large silos, thus limiting their applicability. Summary of the Invention

[0004] The purpose of this invention is to provide an ultra-large electro-hydraulic plug valve that is suitable for heavy-duty silos. Through an electric plug-in device, the valve can be selectively plugged in and out, allowing manual control of the opening size and adjustment of the unloading volume.

[0005] To achieve the above objectives, the present invention provides an ultra-large electro-hydraulic rod valve, comprising a gate frame, rod assemblies, a crossbeam, and hydraulic cylinders. Hydraulic cylinders are respectively arranged on opposite sides of the gate frame. The telescopic ends of the hydraulic cylinders are connected to the crossbeam and drive the crossbeam to reciprocate. Multiple sets of rod assemblies are installed on the crossbeam. The rod assemblies are respectively inserted into two opposite sides of the valve port of the gate frame, and the rods in the two opposite rod assemblies are staggered and interlocked.

[0006] Furthermore, a guide groove is provided on the inner side of the gate frame, allowing materials to flow down along the guide groove, which is less likely to cause blockage on the inner side of the gate frame and affect the opening and closing of the insertion rod assembly.

[0007] Furthermore, there are four hydraulic cylinders divided into two groups, each group being located on the outside of the gate frame valve port. The telescopic end of a single hydraulic cylinder in one group is connected to the crossbeam and drives the crossbeam to reciprocate.

[0008] Furthermore, the hydraulic cylinder is connected to a hydraulic station via an oil pipe, and the hydraulic station is electrically connected to an electrical control cabinet. The electrical control cabinet controls the hydraulic oil output of the hydraulic station to ensure that the hydraulic cylinder extends and retracts synchronously.

[0009] Furthermore, the front end of the insert rod in the insert rod assembly is made into a conical shape, which can cut the material and makes it easier to open and close.

[0010] Furthermore, the crossbeam is equipped with an electric plug-in device that has the same number of plug groups as the number of plug groups, and the electric plug-in device is installed on the corresponding plug group.

[0011] Furthermore, the electric plug-in pin device is electrically connected to the electrical control cabinet, which can control the selective plugging and unplugging of the electric plug-in pin device. In turn, the crossbeam can drive one or two sets of plug rods to open or close, thereby controlling the valve opening size and adjusting the unloading amount.

[0012] Furthermore, the distance from the crossbeam to one end of the gate frame is ≥ half the distance of the gate frame valve opening, ensuring that the valve opening can be fully opened.

[0013] Furthermore, the hydraulic cylinder has a built-in sensor, which is electrically connected to the electrical control cabinet.

[0014] The beneficial effects of this invention are: 1. This invention is suitable for heavy-duty silos; 2. The hydraulic cylinder of this invention is arranged on the side of the gate frame, saving space; 3. The present invention uses an electric insertion and removal pin device to selectively insert and remove pins, thereby controlling the opening size and adjusting the unloading amount; 4. When the present invention closes the rod valve, if a material block is stuck between the two insert rods and cannot be closed, the insert rod assembly automatically retracts to allow the material block to fall, and then the insert rod assembly closes again. This process is repeated several times to ensure complete closure and prevent material leakage from the rod valve. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a side view of the valve body in the ultra-large electro-hydraulic plug valve of the present invention; Figure 2 This is a schematic diagram of the overall structure of the ultra-large electro-hydraulic plunger valve of the present invention; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 This is a schematic diagram of the hydraulic system in the ultra-large electro-hydraulic rod valve of the present invention.

[0016] In the attached diagram: 1. Gate frame; 2. Insertion rod assembly; 3. Crossbeam; 4. Hydraulic cylinder; 5. Insertion rod; 6. Oil pipe; 7. Hydraulic station; 8. Electrical control cabinet; 9. Electric insertion and removal pin device. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0020] A super-large electro-hydraulic rod valve is characterized by comprising a gate frame 1, rod assemblies 2, a crossbeam 3, and hydraulic cylinders 4. Four hydraulic cylinders 4 are respectively arranged on opposite sides of the gate frame 1, divided into two groups. Each group is located outside the valve port of the gate frame 1. The extension and retraction ends of a single hydraulic cylinder 4 in one group are connected to the crossbeam 3, driving the crossbeam 3 to reciprocate. Multiple rod assemblies 2 are installed on the crossbeam 3, with each rod assembly 2 inserted into the two opposite sides of the valve port of the gate frame 1. The rods 5 in the two opposite rod assemblies 2 are staggered and interlocked. The hydraulic cylinders 4 are connected to a hydraulic station 7 via oil pipes 6, and the hydraulic station 7 is connected to an electrical control cabinet 8 via electrical wires. The electrical control cabinet 8 controls the hydraulic oil output of the hydraulic station 7 (the hydraulic oil output varies with the stroke) to ensure that the extension and retraction of the hydraulic cylinders 4 are synchronized. Therefore, under the control of the electrical control cabinet 8, the hydraulic cylinders 4 can drive the rod assemblies 2 on both sides of the valve port to open or retract via the crossbeam 3, thereby opening or closing the valve port and ensuring smooth material discharge.

[0021] A further embodiment of the scheme is that the inner side of the gate frame 1 is made into a guide groove, and the material can be fed along the guide groove, which is less likely to cause blockage on the inner side of the gate frame 1 and affect the opening and closing of the plug rod group 2.

[0022] A further embodiment of the present invention is that the front end of the insert 5 in the insert assembly 2 is made into a cone shape, which can cut the material and is easier to open and close.

[0023] A further embodiment of the scheme is that the distance from the crossbeam 3 to one end of the gate frame 1 is ≥ half the distance of the valve port of the gate frame 1. Example 2

[0024] Based on the technical solution of Embodiment 1, the crossbeam 3 is provided with an electric insertion and removal pin device 9 having the same number of groups as the insertion rod group 2. The electric insertion and removal pin device 9 is set on the corresponding insertion rod group 2. The electric insertion and removal pin device 9 is connected to the electrical control cabinet 8 through a wire. The electric insertion and removal pin device 9 can be controlled to selectively insert and remove the insertion and removal pin device 9. In turn, the crossbeam 3 can drive one group, two groups, or all groups of the insertion rod group 2 to open or close, thereby controlling the size of the valve opening and adjusting the unloading amount. Each hydraulic cylinder 4 has a built-in sensor, which is connected to the electrical control cabinet 8 via wires. When the rod valve is closed, if a material block is stuck between the two insert rods 5 and cannot be closed, the sensor transmits an electrical signal to the electrical control cabinet 8. The electrical control cabinet 8 controls the hydraulic oil output of the hydraulic station 7 to ensure that the hydraulic cylinder 4 extends and retracts synchronously. At this time, the insert rod group 2 can automatically retract, allowing the material block to fall. Then the insert rod group 2 closes again, repeating several times to ensure complete closure and prevent material leakage from the rod valve.

[0025] Unless otherwise specified in the above description, all parts are prior art, or can be implemented using existing technology. Furthermore, the specific embodiments described in this invention are merely preferred embodiments and are not intended to limit the scope of this invention. That is, all equivalent changes and modifications made within the scope of this invention should be considered within the technical scope of this invention.

Claims

1. A super-large electro-hydraulic rod valve, characterized in that, The device includes a gate frame (1), a set of insert rods (2), a crossbeam (3), and a hydraulic cylinder (4). The gate frame (1) is provided with hydraulic cylinders (4) on opposite sides. The extension end of the hydraulic cylinder (4) is connected to the crossbeam (3) and drives the crossbeam (3) to move back and forth. Multiple sets of insert rods (2) are installed on the crossbeam (3). The insert rods (2) are inserted into the two opposite sides of the valve port of the gate frame (1). The insert rods (5) in the two opposite sides of the insert rods (2) are staggered and inserted into each other.

2. The ultra-large electro-hydraulic rod valve according to claim 1, characterized in that, The inner side of the gate frame (1) is provided with a flow guide groove structure.

3. The ultra-large electro-hydraulic rod valve according to claim 1, characterized in that, The hydraulic cylinders (4) are four in number and divided into two groups. Each group is located outside the valve port of the gate frame (1). The telescopic end of a single hydraulic cylinder (4) in one group is connected to the crossbeam (3) and drives the crossbeam (3) to move back and forth.

4. The ultra-large electro-hydraulic plunger valve according to claim 1 or 3, characterized in that, The hydraulic cylinder (4) is connected to the hydraulic station (7) via the oil pipe (6), and the hydraulic station (7) is electrically connected to the electrical control cabinet (8). The electrical control cabinet (8) controls the hydraulic oil output of the hydraulic station (7) to ensure that the hydraulic cylinder (4) extends and retracts synchronously.

5. The ultra-large electro-hydraulic rod valve according to claim 1, characterized in that, The front end of the insert (5) in the insert assembly (2) is conical, which can cut the material and makes it easier to open and close.

6. The ultra-large electro-hydraulic plunger valve according to claim 1, characterized in that, The crossbeam (3) is provided with an electric plug-in pin device (9) having the same number of groups as the plug rod group (2), and the electric plug-in pin device (9) is provided on the corresponding plug rod group (2).

7. The ultra-large electro-hydraulic plunger valve according to claim 6, characterized in that, The electric plug-in device (9) is electrically connected to the electrical control cabinet (8), which can control the electric plug-in device (9) to selectively plug and unplug. In turn, the crossbeam (3) can drive the plug rod group (2) to open or close one or both groups, thereby controlling the valve opening size and adjusting the unloading amount.

8. The ultra-large electro-hydraulic rod valve according to claim 1, characterized in that, The distance from the crossbeam (3) to one end of the gate frame (1) is greater than or equal to half the distance of the valve port of the gate frame (1).

9. The ultra-large electro-hydraulic rod valve according to claim 1, characterized in that, The hydraulic cylinder (4) has a built-in sensor, which is electrically connected to the electrical control cabinet (8).

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