Electrolytic cell with diaphragm frame

Abstract

The utility model is specifically related to an electrolytic cell with diaphragm frame, including tank body, a plurality of independent diaphragm frames are installed in parallel in tank body, its characterized in be that diaphragm frame includes frame body, is equipped with lug plate on both sides of frame body upper end, the lower end of front and back sidewall in tank body is equipped with the integrated bottom positioning plate of symmetry, a plurality of bottom positioning grooves of fixed distance arrangement are seted up on bottom positioning plate, the upper end of front and back sidewall in tank body is equipped with respectively and is equipped with first top positioning plate and second top positioning plate, a plurality of lug plate positioning grooves of fixed distance distribution are equipped on first top positioning plate, still be equipped with pressing plate above first top plate positioning plate, the outside of pressing plate and first top positioning plate are hinged through pin shaft, and the between pressing plate and first top plate positioning plate is connected through bolt, the inside of second person top positioning plate is equipped with a plurality of lug plate positioning holes of fixed distance distribution, and lug plate positioning hole and lug plate positioning groove are symmetrically distributed. The utility model has the advantages of reasonable structure, convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of electrolytic cells, specifically relating to an electrolytic cell with a diaphragm frame. Background Technology

[0002] The diaphragm frame of the electrolytic cell is one of the key components in the ion-exchange membrane electrolysis process. It is mainly used to fix and support the ion exchange membrane and maintain its correct position and shape in the electrolytic cell, so as to ensure the effective transfer of ions and the smooth flow of current during the electrolysis process. In traditional electrolytic cells, multiple diaphragm frames are assembled as a single unit. If one diaphragm is damaged, the entire diaphragm frame needs to be removed from the electrolytic cell for replacement, which is time-consuming and labor-intensive. To solve this problem, those skilled in the art have developed electrolytic cells that allow for individual replacement of diaphragm frames. To facilitate positioning of the diaphragm frames during installation, those skilled in the art have incorporated corresponding positioning and installation devices into the cell. For example, the utility model patent technology published by the Chinese Patent Office on June 30, 2017, with publication number CN206289313U and titled "Positioning Device for Diaphragm Frame of Nickel Electrolytic Cell," first fixes the bottom positioning plate to the bottom of the electrolytic cell, then clips the diaphragm plate onto the bottom positioning plate. After all the diaphragm plates are fixed, the top positioning plate is clipped onto the top of the diaphragm plates, and then the limiting plate is clipped onto the top positioning plate. The bottom positioning plate, top positioning plate, and limiting plate are then fixed by pressure rods, and finally fixed to the electrolytic cell by pins.

[0003] Although the electrolytic cell with the above structure is equipped with a positioning device, its operation is quite cumbersome. In particular, it requires the sequential installation of the bottom positioning plate, top positioning plate, limit plate, and pressure rod. The entire operation process is very complicated, and it needs to be done twice on both the left and right sides, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to provide an electrolytic cell with a diaphragm frame, which simplifies the positioning device inside the cell and facilitates the positioning, installation, and disassembly of the diaphragm frame.

[0005] This utility model is achieved through the following technical solution: An electrolytic cell with diaphragm frames is disclosed, comprising a cell body with multiple independent diaphragm frames installed in parallel within the cell body. The diaphragm frames are characterized by a frame body with ear plates on both sides of the upper end. Symmetrical, integral bottom positioning plates are provided at the lower ends of the front and rear side walls of the cell body. Multiple bottom positioning grooves are arranged at fixed intervals on the bottom positioning plates. A first top positioning plate and a second top positioning plate are respectively provided at the upper ends of the front and rear side walls of the cell body. The first top positioning plate has multiple ear plate positioning grooves distributed at fixed intervals. A pressure plate is also provided above the first top positioning plate. The outer side of the pressure plate is hinged to the first top positioning plate via a pin, and the pressure plate and the first top positioning plate are connected by bolts. The inner side of the second top positioning plate has multiple ear plate positioning holes distributed at fixed intervals, symmetrically distributed with the ear plate positioning grooves.

[0006] Compared to CN206289313U, this utility model greatly simplifies the structure of the diaphragm frame positioning device. Both the bottom positioning plate and the top positioning plate are integrally integrated with the tank body, eliminating the need for repeated installations. The integrated machining also ensures the machining accuracy of the bottom and top positioning plates. Through experiments, it has been found that precise positioning and installation of the diaphragm frame can be achieved by utilizing the bottom positioning groove and the ear plate positioning groove and ear plate positioning hole of the top positioning plate. Therefore, this utility model eliminates the limiting plate on the side wall of the tank body in CN206289313U.

[0007] When installing the diaphragm frame, first insert the ear plate at one end into the ear plate positioning hole of the second top positioning plate, and then place the ear plate at the other end into the ear plate positioning groove of the symmetrical first top positioning plate. The upper surface of the ear plate is flush with the upper surface of the first top positioning plate where the ear plate positioning groove is located. After all the diaphragm frames are installed in place, flip the pressure plate and press it onto the first top positioning plate. The two are then fixed together with bolts.

[0008] When the diaphragm frame needs to be replaced, unscrew the bolts, lift the pressure plate upwards, lift the diaphragm frame upwards from one end, and then pull the ear plate out of the ear plate positioning hole at the other end to remove the diaphragm frame.

[0009] The installation and replacement of the diaphragm frame of this utility model is simpler to operate compared to CN206289313U.

[0010] The ear plate positioning groove of the first top positioning plate of this utility model is symmetrically distributed with the ear plate positioning hole of the second top positioning plate. Therefore, the thickness of the second top positioning plate will be thicker. Moreover, in order to facilitate the insertion and removal of the ear plate, the ear plate positioning hole needs to be slightly larger than the ear plate.

[0011] Furthermore, the bottom positioning groove of this utility model extends vertically through the bottom positioning plate.

[0012] The diaphragm frame of this invention is suspended on two top positioning plates. The top positioning groove is used to limit the back-and-forth swaying of the diaphragm frame. With the above configuration, the processing accuracy requirement for the height of the first diaphragm frame is low.

[0013] This invention has the advantages of reasonable structure and convenient use. When using this invention, the installation and replacement of the diaphragm frame only requires operating the pressure plate on one side, and the other side only requires inserting or removing the ear plate, which is convenient and improves efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention when the diaphragm frame is removed; Figure 3 for Figure 1 Enlarged structural diagram of section A in the middle; Figure 4 This is a partially enlarged structural diagram of the second top positioning plate of this utility model.

[0015] As shown in the figure: 1. Tank; 2. Diaphragm frame; 3. Ear plate; 4. Pressure plate; 5. First top positioning plate; 5-1. Ear plate positioning groove; 6. Bottom positioning plate; 7. Bottom positioning groove; 8. Bolt; 9. Pin; 10. Second top positioning plate; 10-1. Ear plate positioning hole. Detailed Implementation

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown: Multiple independent diaphragm frames 2 are installed in parallel inside the tank 1 (only two diaphragm frames 2 are shown for ease of showing the internal structure of the tank). Each diaphragm frame 2 includes a frame body, with ear plates 3 on both sides of the upper end of the frame body. Symmetrical integrated bottom positioning plates 6 are provided at the lower ends of the front and rear side walls inside the tank 1. Multiple bottom positioning slots 7 are arranged at fixed intervals on the bottom positioning plates 6, which penetrate the bottom positioning plates 6 vertically. A first top positioning plate 5 and a second top positioning plate 10 are respectively provided at the upper ends of the front and rear side walls inside the tank. Multiple ear plate positioning slots 5-1 are arranged at fixed intervals on the first top positioning plate 5. A pressure plate is also provided above the first top positioning plate 5. The outer side of the plate 4 and the pressure plate 4 are hinged to the first top plate positioning plate by multiple pins 9. The first top plate positioning plate and the side wall of the tank are provided with multiple hollow elongated holes. The pins 9 are installed at the hollow elongated holes. The pressure plate 4 and the first top plate positioning plate 5 are connected by bolts 8. When the tank 1 is short, only two bolts 8 are needed, located at both ends of the pressure plate 4 and the first top plate positioning plate 5 respectively. When the tank 1 is long, 1-2 bolts 8 can be added in the middle. The inner side of the second top positioning plate 10 is provided with multiple ear plate positioning holes 10-1 distributed at fixed intervals. The number of ear plate positioning holes 10-1 is the same as the number of ear plate positioning slots 5-1 and they are symmetrically distributed.

[0018] When installing the diaphragm frame 2, first insert the ear plate 3 at one end into the ear plate positioning hole 10-1 of the second top positioning plate 10, and then place the ear plate 3 at the other end into the ear plate positioning groove 5-1 of the symmetrical first top positioning plate 5. The upper surface of the ear plate 3 is flush with the upper surface of the first top positioning plate 5 where the ear plate positioning groove 51 is located. After all the diaphragm frames 2 are installed in place, flip the pressure plate 4 and press it onto the first top positioning plate 5. The two are then fixed together with bolts 8.

[0019] When the diaphragm frame 2 needs to be replaced, unscrew the bolt 8, lift the pressure plate 4 upwards, lift the diaphragm frame 2 slightly from one end, so that the ear plate 3 in the ear plate positioning groove 5-1 is disengaged from the groove, and then pull the ear plate 3 out of the ear plate positioning hole 10-1 at the other end to remove the diaphragm frame 2.

[0020] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. An electrolytic cell with diaphragm frames, comprising a cell body, wherein multiple independent diaphragm frames are installed in parallel within the cell body, characterized in that... The diaphragm frame includes a frame body with ear plates on both sides of the upper end. The lower ends of the front and rear side walls of the tank body are provided with symmetrical, integrated bottom positioning plates. The bottom positioning plates have multiple bottom positioning grooves arranged at fixed intervals. The upper ends of the front and rear side walls of the tank body are provided with a first top positioning plate and a second top positioning plate, respectively. The first top positioning plate has multiple ear plate positioning grooves distributed at fixed intervals. A pressure plate is also provided above the first top positioning plate. The outer side of the pressure plate and the first top positioning plate are hinged by a pin. The pressure plate and the first top positioning plate are connected by bolts. The inner side of the second top positioning plate has multiple ear plate positioning holes distributed at fixed intervals. The ear plate positioning holes and ear plate positioning grooves are symmetrically distributed.

2. An electrolytic cell with a diaphragm frame according to claim 1, characterized in that... The bottom positioning groove runs vertically through the bottom positioning plate.

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