A hydraulic control manual knife gate valve for yellow phosphorus electric furnace discharging

Abstract

The utility model relates to industrial valve technical field, concretely is a kind of liquid control manual knife-gate valve of yellow phosphorus electric furnace blanking, including valve body, the valve plate of being set in valve body and the driving device of driving valve plate lifting, driving device is selectively hydraulic drive device or manual operating mechanism;The upper portion of valve body is provided with support frame, support frame is provided with mounting plate, and mounting plate is equipped with threaded connection mouth;Hydraulic drive device includes hydraulic cylinder, and the cylinder body of hydraulic cylinder is connected with the threaded connection mouth of mounting plate, and the piston rod of hydraulic cylinder is detachably connected with valve plate;Manual operating mechanism includes hand wheel, screw rod, connector, hand wheel is fixedly connected with screw rod top end, and screw rod is threadedly matched with the connection mouth of mounting plate, and screw rod bottom end is movably connected with connector, and connector bottom is detachably connected with valve plate top end. Through the present application, to solve the problem of traditional yellow phosphorus electric furnace stick insertion valve inconvenient operation, poor safety and existing hydraulic knife-gate valve insufficient adaptability.

Description

Technical Field

[0001] This utility model relates to the field of industrial valve technology, specifically a hydraulically controlled manual knife gate valve for feeding yellow phosphorus electric furnace. Background Technology

[0002] Traditional yellow phosphorus electric furnaces use a rod-inserted valve at the base of the charging pipe, which is operated by manually striking a steel rod to open or close the valve. This method has many drawbacks: manual operation is unsafe and labor-intensive; opening and closing the valve takes a long time, affecting production efficiency; and due to the dense pipelines and limited space for construction and maintenance, the installation and maintenance of traditional valves are extremely inconvenient.

[0003] Most existing hydraulic gate valve control systems operate on a single control mode, either through a hydraulic cylinder or by manually controlling the up-and-down movement of the gate plate to close the valve. Manual control alone increases labor costs, is physically demanding, and involves long opening and closing times. Single hydraulic cylinder control, as illustrated in patent CN118728986A (a hydraulic combined penetrating slurry gate valve), involves a reciprocating motion of the hydraulic cylinder controlled by a motor, hydraulic pump, and high-pressure oil pipes. If any of these components malfunctions, production must be halted for troubleshooting and repair, wasting manpower and resources and delaying production. In particular, if the hydraulic cylinder malfunctions, the end cap and connectors must be removed, and the piston rod's chrome plating, cylinder diameter, and seals must be thoroughly cleaned and inspected. Scratches on the cylinder require grinding and repair, bent piston rods need straightening, and surface scratches need chrome plating treatment. After each inspection and repair, assembly and testing are necessary, including sequential installation of components, leak testing, and adjustments to meet technical specifications. This entire maintenance process consumes significant production time. Using spare hydraulic cylinders or other spare linkage components increases production costs. Therefore, existing single control systems cannot meet the complex operating conditions required in yellow phosphorus production sites.

[0004] To address the aforementioned issues, this solution designs a hydraulically controlled manual gate valve, which can be installed in both hydraulic and manual systems, enabling rapid replacement. This solves the problem of not being able to quickly switch to manual operation when the hydraulic system fails, avoids numerous safety hazards, reduces worker workload, lowers enterprise costs, shortens valve opening and closing time, and increases production output. The gate valve's simplified design and small installation size solve the problem of dense piping and limited space in production sites, making it inconvenient to install large-size valves. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace, thus solving the problems of inconvenient operation, poor safety, and insufficient adaptability of traditional roller valves.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a hydraulically controlled manual knife gate valve for feeding yellow phosphorus electric furnace, including a valve body (1), a valve plate (2) disposed in the valve body (1), and a driving device for driving the valve plate (2) to rise and fall, wherein the driving device may be a hydraulic driving device (3) or a manual operating mechanism (4); a support frame (5) is provided above the valve body (1), and a mounting plate (6) is provided on the support frame (5), and a threaded connection port (7) is provided on the mounting plate (6); the hydraulic driving device (3) includes a hydraulic cylinder (8), and the cylinder body of the hydraulic cylinder (8) is connected to the mounting plate (6) at the connection port (7). The hydraulic cylinder (8) is detachably connected to the valve plate (2) via a threaded connection. The manual operating mechanism (4) includes a handwheel (41), a screw (42), and a connector (43). The handwheel (41) is fixedly connected to the top end of the screw (42). The screw (42) is threadedly engaged with the connection port (7) of the mounting plate (6). The bottom end of the screw (42) is movably connected to the connector (43). The bottom of the connector (43) is detachably connected to the top end of the valve plate (2). The hydraulic cylinder (8) and the manual operating mechanism (4) are interchangeably mounted on the connection port (7) of the same mounting plate (6).

[0007] Furthermore, valve seat sealing surfaces (9) are provided at both the upper and lower ends of the flow channel of the valve body (1).

[0008] Furthermore, the valve seat sealing surface (9) is made of STL material.

[0009] Furthermore, the valve plate (2) is made of 2205 duplex stainless steel.

[0010] Furthermore, the support frame (5) is connected to the mounting plate (6) by bolts, wherein the bolts are A3 type double-ended stud bolts.

[0011] Furthermore, a sealing strip (10) is embedded in the valve seat sealing groove of the valve body (1), the sealing strip (10) is tightly fitted with the valve plate (2), and the sealing strip (10) is made of graphite packing material.

[0012] Compared with existing technologies, the beneficial effects of this solution are: 1. Easy installation: When the hydraulic drive device malfunctions, the hydraulic cylinder can be removed simply by unscrewing the bolts on the support frame and mounting plate. Then, the manual operating mechanism can be installed by engaging the screw of the manual operating mechanism with the thread of the mounting plate, as well as by cooperating with the screws on the support frame and mounting plate. The bolts enable quick installation and removal, and the two modes can be switched between within 10 minutes.

[0013] 2. Ensure continuous production: The manual operating mechanism adopts a detachable design, which does not occupy space when not in use, thus ensuring the continuity of production.

[0014] 3. Good sealing performance: The sealing structure improves the valve's sealing performance, reduces material leakage, and lowers maintenance costs.

[0015] 4. Time-saving: The hydraulic cylinder can be temporarily replaced by a manual operation mechanism, so that the production schedule is not delayed while the hydraulic cylinder is being repaired, thus increasing product output. Attached Figure Description

[0016] Figure 1 This is a left-side structural diagram of the hydraulically controlled manual knife gate valve for feeding yellow phosphorus in an electric furnace before replacement, according to the present invention.

[0017] Figure 2 This is a left-side view of the structure after the replacement of the hydraulic manual knife gate valve for feeding yellow phosphorus in an electric furnace according to this utility model.

[0018] In the diagram: 1-valve body, 2-valve plate, 3-hydraulic drive device, 4-manual operating mechanism, 41-handwheel, 42-screw, 43-connector, 5-support frame, 6-mounting plate, 7-connection port, 8-hydraulic cylinder, 9-valve seat sealing surface, 10-sealing strip. Detailed Implementation

[0019] 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.

[0020] Implementation, for example, attached Figure 1-2 As shown: This embodiment is a hydraulically controlled manual gate valve for feeding yellow phosphorus into an electric furnace, including a valve body 1, a valve plate 2 disposed within the valve body 1, and a drive device for driving the valve plate 2 to rise and fall. The drive device can be optionally a hydraulic drive device 3 or a manual operating mechanism 4. A support frame 5 is disposed above the valve body 1, and a mounting plate 6 is disposed on the support frame 5. The mounting plate 6 has a threaded connection port 7. The hydraulic drive device 3 includes a hydraulic cylinder 8, the cylinder body of which is threadedly connected to the connection port 7 of the mounting plate 6, and the piston rod of the hydraulic cylinder 8 is detachably connected to the valve plate 2. The manual operating mechanism 4 includes a handwheel 41, a screw 42, and a connector 43. The handwheel 41 is fixedly connected to the top end of the screw 42, the screw 42 is threadedly engaged with the connection port 7 of the mounting plate 6, the bottom end of the screw 42 is movably connected to the connector 43, and the bottom end of the connector 43 is detachably connected to the top end of the valve plate 2. The hydraulic cylinder 8 and the manual operating mechanism 4 can be interchangeably mounted on the same connection port 7 of the mounting plate 6.

[0021] The lower surface of the hydraulic cylinder 8 is provided with threads that mate with the connection port 7 of the mounting plate 6, facilitating the threaded connection of the hydraulic cylinder 8 to the mounting plate 6. Simultaneously, the piston rod of the hydraulic cylinder 8 can be detachably connected to the valve plate 2 via a pin, cross pin, etc., allowing the piston rod to drive the valve plate 2 to move up and down when the hydraulic cylinder 8 is powered by electricity. It also facilitates the easy disassembly and separation of the valve plate 2 in case of a malfunction in the hydraulic cylinder 8. Similarly, the manual operating mechanism 4 is also detachably connected to the valve plate 2.

[0022] The valve body 1 has valve seat sealing surfaces 9 at both ends of the flow channel. The valve seat sealing surfaces 9 are made of STL material, which has excellent wear resistance, corrosion resistance and high temperature resistance. A sealing strip 10 is embedded in the valve seat sealing groove of the valve body 1. The sealing strip 10 fits tightly with the valve plate 2 and is made of graphite packing material, which is suitable for sealing under high temperature and high pressure conditions.

[0023] Valve body 1 is made of WCB material, and valve plate 2 is made of 2205 duplex stainless steel.

[0024] The support frame 5 is connected to the mounting plate 6 by bolts. The bolts are A3 material double-ended bolts. A3 material has good strength and corrosion resistance. At the same time, A3 steel generally has good machinability and weldability. It can be easily cut, drilled and welded during the manufacturing process, and can effectively resist the high temperature and easy corrosion during the production of yellow phosphorus.

[0025] Working principle: such as Figure 1 The hydraulic drive device 3 can be assembled by connecting the support frame 5 and the mounting plate 6 with bolts, and by connecting the threaded connection port 7 of the mounting plate 6 to the cylinder body of the hydraulic cylinder 8 with threads. At this time, the hydraulic drive device 3 operates normally, and the operator can start the hydraulic cylinder 8 to move downwards via a power source, thereby causing the piston rod to drive the valve plate 2 to move up and down. When the hydraulic cylinder 8 or other linkage components malfunction and need to be disassembled for repair, the hydraulic cylinder 8 can be separated by removing the bolts between the support frame 5 and the mounting plate 6, and the connection between the valve plate 2 and the piston rod. Then, by continuing to connect the support frame 5 and the mounting plate 6 with bolts, and by detachably connecting the valve plate 2 and the connector 43, the manual operating mechanism 4 can be quickly installed. Figure 2 As shown, the manual operating mechanism 4 can control the screw 42 to move the valve plate 2 up and down via the connector 43 by rotating the handwheel 41, thus opening and closing the gate valve. The valve body 1 is equipped with a valve seat sealing surface and a sealing strip, both designed to enhance sealing performance and prevent material leakage. This device addresses the problems of inconvenience and poor safety of traditional roller valves used in electric furnaces during yellow phosphorus production, as well as the insufficient adaptability of existing hydraulic knife gate valves.

[0026] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A hydraulically controlled manual gate valve for feeding yellow phosphorus into an electric furnace, comprising a valve body (1), a valve plate (2) disposed within the valve body (1), and a driving device for driving the valve plate (2) to rise and fall, characterized in that: The driving device can be optionally a hydraulic driving device (3) or a manual operating mechanism (4); a support frame (5) is provided above the valve body (1), and a mounting plate (6) is provided on the support frame (5), and a threaded connection port (7) is provided on the mounting plate (6); the hydraulic driving device (3) includes a hydraulic cylinder (8), the cylinder body of the hydraulic cylinder (8) is threadedly connected to the connection port (7) of the mounting plate (6), and the piston rod of the hydraulic cylinder (8) is detachably connected to the valve plate (2); the manual operating mechanism ( 4) Includes a handwheel (41), a screw (42), and a connector (43). The handwheel (41) is fixedly connected to the top of the screw (42). The screw (42) is threadedly engaged with the connector (7) of the mounting plate (6). The bottom of the screw (42) is movably connected to the connector (43). The bottom of the connector (43) is detachably connected to the top of the valve plate (2). The hydraulic cylinder (8) and the manual operating mechanism (4) are interchangeably mounted on the connector (7) of the same mounting plate (6).

2. The hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace according to claim 1, characterized in that: The valve body (1) has valve seat sealing surfaces (9) at both the upper and lower ends of the flow channel.

3. The hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace according to claim 2, characterized in that: The valve seat sealing surface (9) is made of STL material.

4. The hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace according to claim 1, characterized in that: The valve plate (2) is made of 2205 duplex stainless steel.

5. The hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace according to claim 1, characterized in that: The support frame (5) is connected to the mounting plate (6) by bolts, wherein the bolts are A3 material double-ended studs.

6. The hydraulically controlled manual knife gate valve for feeding yellow phosphorus into an electric furnace according to claim 1, characterized in that: A sealing strip (10) is embedded in the valve seat sealing groove of the valve body (1). The sealing strip (10) is tightly fitted with the valve plate (2), and the sealing strip (10) is made of graphite packing material.

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