Constant-volume feeder and electrolysis system with same

Abstract

The utility model discloses a constant volume discharger and an electrolysis system with the constant volume discharger, the constant volume discharger comprises a discharging barrel, the discharging barrel is provided with a feeding port, a stock bin and a discharging port, and the stock bin is communicated with the feeding port and the discharging port; the pull rod assembly is inserted into the discharging barrel and can move between the discharging position and the feeding position, when the pull rod assembly is located at the discharging position, the feeding port is closed, the discharging port is opened, when the pull rod assembly is located at the feeding position, the discharging port is closed, and the feeding port is opened; the driving mechanism comprises a driving part, a driving cylinder and a piston rod assembly, the piston rod assembly is movably arranged on the driving cylinder, the piston rod assembly is detachably connected with the pull rod assembly, and the driving part drives the piston rod assembly to move so as to drive the pull rod assembly to move; when the pull rod assembly moves from the feeding position to the discharging position, the piston rod assembly gradually gets close to the discharging barrel, and when the pull rod assembly is located at the feeding position, the connecting position of the piston rod assembly and the pull rod assembly is located outside the discharging barrel. The constant-volume discharger is stable in discharging and convenient to disassemble, assemble and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolysis, in particular to a constant-volume discharger and an electrolysis system with the same. BACKGROUND

[0002] The discharger used above the electrolytic cell in the electrolysis workshop is a constant-volume discharger. The connection mode of the internal cylinder and the pull rod in the related art is spring connection. When the cylinder is in action, the cylinder piston rod is pressed down, so that the discharger discharges. When the cylinder is not in action, the spring rebounds to push the cylinder piston rod back.

[0003] Such a discharging mode is very dependent on the rebound speed of the spring. With the increase of the service life and the number of actions, the rebound force of the spring will gradually decrease. At this time, the discharging of the discharger will be unstable, thereby affecting the normal and smooth operation of the electrolytic cell. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide a constant-volume discharger, which has the advantages of stable discharging and convenient disassembly and maintenance.

[0005] In order to achieve the above-mentioned object, according to the first aspect of the present application, a constant-volume discharger is provided, which comprises: a discharging cylinder provided with a feeding port, a hopper and a discharging port, the hopper being in communication with the feeding port and the discharging port respectively; a pull rod assembly inserted in the discharging cylinder and movable between a discharging position and a feeding position, the pull rod assembly closing the feeding port when located at the discharging position, and the discharging port being open, the pull rod assembly closing the discharging port when located at the feeding position, and the feeding port being open; a driving mechanism comprising a driving member, a driving cylinder and a piston rod assembly, the piston rod assembly being movably arranged in the driving cylinder, the piston rod assembly being detachably connected with the pull rod assembly, and the driving member driving the piston rod assembly to move so as to drive the pull rod assembly to move; wherein, in the process of moving the pull rod assembly from the feeding position to the discharging position, the piston rod assembly gradually approaches the discharging cylinder, and the connection position of the piston rod assembly and the pull rod assembly is located outside the discharging cylinder when the pull rod assembly is located at the feeding position.

[0006] The constant-volume discharger of the present application has the advantages of stable discharging and convenient disassembly and maintenance.

[0007] In some embodiments of the present application, when the pull rod assembly is located at the discharging position, the connection position of the piston rod assembly and the pull rod assembly is located outside the discharging cylinder.

[0008] In some embodiments of the present application, the piston rod assembly comprises: a piston rod movably arranged in the driving cylinder; and a connecting piece detachably connected with the piston rod and the pull rod assembly.

[0009] In some embodiments of the present application, the constant-volume feeder further comprises: a positioning pin, the connecting piece is provided with a first positioning hole, the pull rod assembly is provided with a second positioning hole, the positioning pin is plug-arranged in the first positioning hole and the second positioning hole, and the positioning pin is located outside the discharging cylinder.

[0010] In some embodiments of the present application, the central axis of the piston rod, the central axis of the connecting piece and the central axis of the pull rod assembly are arranged in coincidence.

[0011] In some embodiments of the present application, the connecting piece comprises: a base detachably connected with the piston rod; and two connecting arms connected with the base, the two connecting arms are located on opposite sides in the radial direction of the pull rod assembly, each of the two connecting arms is provided with the first positioning hole, and the positioning pin is plug-arranged in the two first positioning holes.

[0012] In some embodiments of the present application, the base is provided with a threaded hole, the piston rod is provided with a threaded portion, the threaded portion is plug-arranged in the threaded hole, and the outer peripheral surface of the threaded portion is threadedly matched with the inner peripheral surface of the threaded hole.

[0013] In some embodiments of the present application, the discharging cylinder is provided with a through hole at one end facing the driving mechanism, the pull rod assembly is plug-arranged in the through hole, and the distance between the opposite surfaces of the two connecting arms is greater than the diameter of the through hole.

[0014] In some embodiments of the present application, the positioning pin is interference-fitted with the first positioning hole, and the positioning pin is interference-fitted with the second positioning hole.

[0015] According to the second aspect of the present application, an electrolytic system is provided, comprising: an electrolytic cell; and the constant-volume feeder according to the first aspect of the present application, the constant-volume feeder is located above the electrolytic cell, and the discharging port is used for discharging materials to the electrolytic cell.

[0016] The electrolytic system of the second aspect of the present application has the advantages of convenient maintenance and stable operation of the electrolytic cell by using the constant-volume feeder of the first aspect of the present application.

[0017] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings in which:

[0019] Figure 1 is a structural schematic diagram of a constant-volume feeder according to an embodiment of the present application;

[0020] Figure 2 is a structural schematic diagram of a connecting piece of a constant-volume feeder according to an embodiment of the present application;

[0021] Figure 3 is a structural schematic diagram of a pull rod assembly of a constant-volume feeder according to an embodiment of the present application.

[0022] Reference signs:

[0023] Constant-volume feeder 1; electrolytic system 2;

[0024] Feeding cylinder 100; feeding port 110; hopper 120; discharging port 130; through hole 140;

[0025] Pull rod assembly 200; second positioning hole 201; pull rod 210; outer connecting piece 220; discharging sealing piece 230; feeding sealing piece 240;

[0026] Driving mechanism 300; driving cylinder 310; first air cavity 311; second air cavity 312; piston rod assembly 320; piston rod 321; connecting piece 322; first positioning hole 323; connecting arm 3221; base 3222; threaded hole 3223; driving piece 330; two-position four-way valve 340;

[0027] Positioning pin 400; electrolytic tank 500. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and the embodiments described with reference to the drawings are exemplary, and the embodiments of the present application are described in detail below.

[0029] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In the description of the present application, the meaning of "a plurality of" is two or more.

[0031] The volumetric feeder 1 according to an embodiment of this application is described below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, the constant volume feeder 1 according to an embodiment of this application includes a feed cylinder 100, a pull rod assembly 200, and a drive mechanism 300.

[0033] The feeding cylinder 100 is provided with a feed inlet 110, a hopper 120 and a discharge outlet 130. The hopper 120 is connected to both the feed inlet 110 and the discharge outlet 130. The feed inlet 110, the hopper 120 and the discharge outlet 130 are arranged in order from top to bottom. In this way, the material enters the hopper 120 from the top and is discharged from the bottom. The material moves under the action of gravity, eliminating the need for an additional mechanism to drive the material movement and reducing the number of parts.

[0034] The pull rod assembly 200 is inserted into the feed cylinder 100 and is movable between the discharge position and the feed position. When the pull rod assembly 200 is in the discharge position, the feed port 110 is closed and the discharge port 130 is open. At this time, the material in the hopper 120 is discharged from the discharge port 130. Since the feed port 110 is closed, the probability of material being accidentally discharged from the feed port 110 is reduced. When the pull rod assembly 200 is in the feed position, the discharge port 130 is closed and the feed port 110 is open. At this time, the material can enter the hopper 120 from the feed port 110. Since the discharge port 130 is closed, the probability of material being accidentally discharged from the discharge port 130 is reduced, and the replenishment of the hopper 120 is achieved more quickly.

[0035] For example, the pull rod assembly 200 is equipped with a discharge seal 230 and a feed seal 240. The discharge seal 230 and the feed seal 240 are located outside the hopper 120. During the process of the pull rod assembly 200 moving from the discharge position to the feed position, the discharge seal 230 gradually moves closer to the discharge port 130, and the feed seal 240 gradually moves away from the feed port 110, until the discharge seal 230 blocks the discharge port 130; during the process of the pull rod assembly 200 moving from the feed position to the discharge position, the discharge seal 230 gradually moves away from the discharge port 130, and the feed seal 240 gradually moves closer to the feed port 110, until the feed seal 240 blocks the feed port 110.

[0036] The discharge seal 230 and the inlet seal 240 can be elastic components, such as those made of rubber or silicone.

[0037] The cross-sectional area of the discharge seal 230 gradually decreases in the direction close to the bin 120, the cross-sectional area of a part of the discharge seal 230 is greater than that of the discharge port 130, the cross-sectional area of another part of the discharge seal 230 is less than that of the discharge port 130, and the outer peripheral surface of the discharge seal 230 is in sealing contact with the inner peripheral surface of the discharge port 130 when the pull rod assembly 200 is in the discharge position, thereby achieving better sealing effect on the discharge port 130.

[0038] The cross-sectional area of the discharge seal 230 gradually decreases in the direction close to the bin 120, the cross-sectional area of a part of the discharge seal 230 is greater than that of the discharge port 130, the cross-sectional area of another part of the discharge seal 230 is less than that of the discharge port 130, and the outer peripheral surface of the discharge seal 230 is in sealing contact with the inner peripheral surface of the discharge port 130 when the pull rod assembly 200 is in the discharge position, thereby achieving better sealing effect on the discharge port 130.

[0039] The driving mechanism 300 includes a driving member 330, a driving cylinder 310, and a piston rod assembly 320. The driving mechanism 300 can be located above the discharging cylinder 100. The piston rod assembly 320 is movably arranged in the driving cylinder 310 and detachably connected with the pull rod assembly 200. The driving member 330 is used to drive the piston rod assembly 320 to move, so as to drive the pull rod assembly 200 to move.

[0040] In this way, the piston rod assembly 320 is directly connected with the pull rod assembly 200. The piston rod assembly 320 moves under the driving of the driving member 330 and directly drives the pull rod assembly 200 to move between the discharge position and the feeding position. Therefore, it is not necessary to additionally arrange a spring or other elastic member to reset the piston rod assembly 320, and thus it is not necessary to worry about the stability of the spring elasticity failure. The discharging reliability of the constant-volume discharger 1 is higher, and the stable operation of the electrolysis system 2 can be ensured.

[0041] For example, the driving member 330 can be an electric motor, and the driving force is outputted by the motor shaft of the electric motor to drive the piston rod assembly 320 to move. Alternatively, the piston rod assembly 320 defines the first air cavity 311 and the second air cavity 312 for the driving cylinder 310, the first air cavity 311 is located above the second air cavity 312, and the driving member 330 is a gas source. The gas source can be communicated with the first air cavity 311 and the second air cavity 312 through a two-position four-way valve 340. When the two-position four-way valve 340 is in the first state, the gas source can inflate the first air cavity 311, the piston rod assembly 320 moves towards the second air cavity 312, the second air cavity 312 exhausts outward, and the piston rod assembly 320 drives the pull rod assembly 200 to move to the discharging position. When the two-position four-way valve 340 is in the second state, the gas source can inflate the second air cavity 312, the piston rod assembly 320 moves towards the first air cavity 311, the first air cavity 311 exhausts outward, and the piston rod assembly 320 drives the pull rod assembly 200 to move to the feeding position.

[0042] In addition, during the movement of the pull rod assembly 200 from the feeding position to the discharging position, the piston rod assembly 300 gradually approaches the discharging cylinder 100. When the pull rod assembly 200 is located at the feeding position, the connection position of the piston rod assembly 320 and the pull rod assembly 200 is located outside the discharging cylinder 100.

[0043] Therefore, during the stroke of the pull rod assembly 200, the connection position of the piston rod assembly 320 and the pull rod assembly 200 is at least partially located outside the discharging cylinder 100. At this time, the disassembly or connection between the piston rod assembly 320 and the pull rod assembly 200 is not blocked by the discharging cylinder 100, which is more convenient for disassembly and assembly, and is beneficial to improve the production efficiency and the efficiency of subsequent maintenance, reduce the use cost, and reduce the labor intensity of the maintenance personnel.

[0044] In some embodiments of the present application, as shown in Figure 1 When the pull rod assembly 200 is located at the discharging position, the connection position of the piston rod assembly 320 and the pull rod assembly 200 is located outside the discharging cylinder 100. That is, no matter what position the pull rod assembly 200 is in, the connection position of the piston rod assembly 320 and the pull rod assembly 200 is always located outside the discharging cylinder 100, which is more convenient for disassembling the piston rod assembly 320 and the pull rod assembly 200, and further reduces the labor intensity of the maintenance personnel.

[0045] In some embodiments of the present application, as shown in Figure 1 The piston rod assembly 320 includes a piston rod 321 and a connecting member 322, the piston rod 321 is movably arranged in the driving cylinder 310, and the connecting member 322 is detachably connected with the piston rod 321 and the pull rod assembly 200.

[0046] In this way, the piston rod assembly 320 can replace the connecting piece 322 of different sizes and shapes, and the piston rod 321 can be connected with different connecting pieces 322, so that the driving mechanism 300 can be connected with the pull rod assembly 200 of different sizes and shapes by replacing the connecting piece 322, and the constant-volume feeder 1 is more flexible, and the application scenarios of the constant-volume feeder 1 are expanded.

[0047] In some embodiments of the present application, as shown in Figures 1-3 The constant-volume feeder 1 further comprises a positioning pin 400, the connecting piece 322 is provided with a first positioning hole 323, the pull rod assembly 200 is provided with a second positioning hole 201, and the positioning pin 400 is plug-in arranged in the first positioning hole 323 and the second positioning hole 201 and located outside the discharge cylinder 100. In this way, the connection and disassembly between the connecting piece 322 and the pull rod assembly 200 are convenient, and the connection structure between the connecting piece 322 and the pull rod assembly 200 is relatively simple.

[0048] For example, the pull rod assembly 200 can comprise a pull rod 210 and an external connecting piece 220, the pull rod 210 and the external connecting piece 220 can be welded, at least a part of the external connecting piece 220 is located outside the discharge cylinder 100, the part of the external connecting piece 220 located outside the discharge cylinder 100 is connected with the connecting piece 322, and the external connecting piece 220 is provided with the second positioning hole 201, so that the second positioning hole 201 does not need to be directly constructed on the pull rod 210, which is beneficial to ensuring the structural strength of the pull rod 210.

[0049] Of course, the connecting piece 322 and the pull rod assembly 200 can also be connected in other ways, for example, the connecting piece 322 and the pull rod assembly 200 can be threadedly connected, and the connecting piece 322 and the pull rod assembly 200 can also be clamped.

[0050] In some specific embodiments of the present application, as shown in Figure 1 The central axis of the piston rod 321, the central axis of the first connecting piece 322 and the central axis of the pull rod assembly 200 are arranged in coincidence. In this way, when the piston rod assembly 320 moves along its axis, the driving pull rod assembly 200 moves along its central axis, and the pull rod assembly 200 is not prone to deflection during the movement, thereby improving the sealing effect of the pull rod assembly 200 on the feeding port 110 in the discharging position and the sealing effect of the pull rod assembly 200 on the discharging port 130 in the feeding position.

[0051] In some specific embodiments of the present application, as shown in Figure 2As shown, the connecting piece 322 comprises a base 3222 and two connecting arms 3221, the base 3222 is connected with the two connecting arms 3221, the base 3222 is detachably connected with the piston rod 321, and each connecting arm 3221 is provided with a first positioning hole 323, and the two connecting arms 3221 are located on opposite sides in the radial direction of the pull rod assembly 200, and the positioning pin 400 is pluggably inserted into the two first positioning holes 323.

[0052] By arranging the base 3222, the relative positions between the two connecting arms 3221 can be fixed, and detachable connection between the connecting piece 322 and the piston rod 321 can be achieved; by arranging the two connecting arms 3221, the two connecting arms 3221 can apply driving force to the pull rod assembly 200 from opposite sides in the radial direction of the pull rod assembly 200, the stress of the pull rod assembly 200 is more uniform, the probability of deflection of the pull rod assembly 200 is reduced, and the closing effect of the pull rod assembly 200 on the feed inlet 110 in the discharging position and the closing effect of the pull rod assembly 200 on the discharging outlet 130 in the feeding position are improved.

[0053] In some embodiments of the present application, as shown in Figure 2 As shown, the base 3222 is provided with a threaded hole 3223, the piston rod 321 is provided with a threaded portion, and the threaded portion is inserted into the threaded hole 3223, so that the base 3222 and the piston rod 321 can be pre-positioned, and the outer peripheral surface of the threaded portion is threadedly matched with the inner peripheral surface of the threaded hole 3223, so that the base 3222 and the piston rod 321 can be connected and detached, which is convenient for disassembly and assembly and has a simple structure.

[0054] In some embodiments of the present application, the positioning pin 400 is in interference fit with the first positioning hole 323, the positioning pin 400 and the first positioning hole 323 are not easy to rotate and shake relative to each other, and the relative positions between the positioning pin 400 and the first positioning hole 323 are more stable. Moreover, the positioning pin 400 is in interference fit with the second positioning hole 201, the positioning pin 400 and the second positioning hole 201 are not easy to rotate and shake relative to each other, and the relative positions between the positioning pin 400 and the second positioning hole 201 are more stable.

[0055] In this way, the probability of relative rotation and shaking between the pull rod assembly 200 and the piston rod assembly 320 can be reduced, so that the pull rod assembly 200 moves along the axial direction, and the closing effect of the pull rod assembly 200 on the feed inlet 110 in the discharging position and the closing effect of the pull rod assembly 200 on the discharging outlet 130 in the feeding position are improved.

[0056] In some embodiments of the present application, as shown in Figure 1As shown, the one end of the feeding cylinder 100 towards the driving mechanism 300 is provided with a through hole 140, the pull rod assembly 200 is arranged in the through hole 140, and the distance between the opposite surfaces of the two connecting arms 3221 is greater than the diameter of the through hole 140.

[0057] In this way, when the piston rod assembly 320 moves towards the feeding cylinder 100, the connecting arms 3221 can abut against the one end of the feeding cylinder 100 towards the driving mechanism 300, so that the piston rod assembly 320 cannot extend into the feeding cylinder 100, facilitating the disassembly and assembly between the piston rod assembly 320 and the pull rod assembly 200.

[0058] The electrolytic system 2 according to the embodiments of the present application will be described below with reference to the accompanying drawings, such as Figure 1 As shown, the electrolytic system 2 comprises an electrolytic tank 500 and the constant-volume feeder 1 according to the above-mentioned embodiments of the present application, the constant-volume feeder 1 is located above the electrolytic tank 500, and the discharge port 130 is used for discharging materials to the electrolytic tank 500.

[0059] The electrolytic system 2 according to the embodiments of the present application has the advantages of facilitating maintenance, stable operation of the electrolytic tank 500, and improving the working efficiency of the electrolytic tank 500, through the constant-volume feeder 1 according to the above-mentioned embodiments of the present application.

[0060] The other configurations and operations of the constant-volume feeder 1 according to the embodiments of the present application and the electrolytic system 2 having the same are known to those skilled in the art, and will not be described in detail herein.

[0061] In the description of the present specification, the description of the terms “one embodiment”, “some embodiments”, “exemplary embodiment”, “example”, “specific example”, or “some examples” means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example.

[0062] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A constant volume dispenser characterized by, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device.

2. The constant volume dispenser of claim 1, wherein, The application relates to a constant-volume feeding device.

3. The constant volume dispenser of claim 2, wherein, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device.

4. The constant volume dispenser of claim 3, wherein, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device.

5. The constant volume dispenser of claim 4, wherein, The application relates to a constant-volume feeding device.

6. The constant volume dispenser of claim 4, wherein, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device.

7. The constant volume dispenser of claim 6, wherein, The application relates to a constant-volume feeding device.

8. The constant volume dispenser of claim 6, wherein, The application relates to a constant-volume feeding device.

9. The constant volume dispenser of claim 4, wherein, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device.

10. An electrolysis system characterized in that, The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. The application relates to a constant-volume feeding device. 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