Water-saving device for two-washing post of magnesium oxide production

Abstract

The utility model discloses a kind of two washing post water-saving devices for magnesium oxide production, it is related to magnesium oxide production field, including body and the cover plate of body upper end rotation installation, the inside of the body is provided with two washing disc, and the inner wall of two washing disc is provided with sieve plate, and the front end of the body is installed with industrial online conductivity meter, and the lower end of the industrial online conductivity meter is provided with detection probe, the middle end of the detection probe is provided with positioning auxiliary mechanism, and it can be quickly disassembled by positioning auxiliary mechanism.The two washing post water-saving devices for magnesium oxide production, when cleaning raw materials in the process of magnesium oxide production, the liquid after cleaning flows down and contacts the detection probe of industrial online conductivity meter;With the continuation of cleaning, soluble gradually reduces in material, and water conductivity gradually reduces accordingly;When conductivity reduces to the set process standard value, the system prompts that cleaning is up to standard, can close cleaning water inlet pipe, and promptly close inlet operation.

Description

Technical Field

[0001] This utility model relates to the field of magnesium oxide production technology, specifically to a water-saving device for a secondary washing station in magnesium oxide production. Background Technology

[0002] In the production of magnesium oxide, in order to obtain a product with high purity, some intermediate materials need to be washed multiple times with water to remove soluble salts or impurities from the mother liquor.

[0003] In traditional two-stage washing processes, the washing process relies heavily on manual experience. Operators typically set the number of washes and washing duration based on experience, for example, washing several times consecutively before the central control room takes samples for testing to determine the washing effect.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN217189474U) discloses an apparatus for producing magnesium hydroxide from magnesium ammonium phosphate, including a feeding hopper, a mixing acidification tank, a reaction vessel, a belt filter, a washing tank, and a phosphate mother liquor tank. The feeding hopper is connected to the mixing acidification tank via a first conveyor, and the mixing acidification tank is connected to the reaction vessel via a first pipe. The bottom of the reaction vessel is connected to the belt filter via a second pipe. The filter cake filtered by the belt filter is transported to a designated location by the second conveyor, and the filtrate filtered by the belt filter is sent to the phosphate mother liquor tank. An acid pipe is connected to the mixing acidification tank, and a rinsing water pipe is connected to the belt filter. The washing water from the belt filter flows into the washing tank. A mud pump is connected to both the first and second pipes, and an air inlet pipe is connected to the reaction vessel, enabling the recovery and reuse of the filter residue containing magnesium ammonium phosphate.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, the cleaning quality can only be confirmed by sampling and testing, requiring central control personnel to take samples and conduct tests to determine whether the soluble ions in the cleaning water meet the process indicators. There is a lack of real-time monitoring methods. Before the test is completed, operators cannot accurately determine whether the cleaning has met the standards and can only continue rinsing or wait for the results, which is relatively wasteful of water resources. Utility Model Content

[0006] The purpose of this utility model is to provide a water-saving device for the secondary washing station in magnesium oxide production, in order to solve the problem mentioned in the background technology that the washing quality can only be confirmed by sampling and testing, which requires central control personnel to sample and test to determine whether the soluble ions in the washing water meet the process indicators. There is a lack of real-time monitoring means, and before the test is completed, the operator cannot accurately determine whether the washing has met the standards, and can only continue rinsing or wait for the results, which is a waste of water resources.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water-saving device for a secondary washing station in magnesium oxide production, comprising a machine body and a cover plate rotatably mounted on the upper end of the machine body. The machine body is provided with a secondary washing disc, and the inner wall of the secondary washing disc is provided with a sieve plate. An industrial online conductivity meter is installed at the front end of the machine body, and a detection probe is provided at the lower end of the industrial online conductivity meter. A positioning auxiliary mechanism is provided at the middle end of the detection probe, and the positioning auxiliary mechanism allows for quick disassembly.

[0008] Furthermore, a water inlet pipe is connected to the left side of the machine body, and the right port of the water inlet pipe is aligned with the inside of the second washing disc. An electric valve pipe is connected to the bottom of the second washing disc, and the electric valve pipe corresponds to the position of the detection probe. The conductivity signal collected by the probe can be connected to the field instrument for display or transmitted to the central control system. When the conductivity drops to the set process standard value, the system will prompt that the cleaning has met the standard.

[0009] Furthermore, the positioning auxiliary mechanism is provided with a positioning plate, and the upper end of the positioning plate is fixedly installed at the lower end of the second washing plate, and the middle groove of the positioning plate is embedded in the upper end of the detection probe.

[0010] Furthermore, a horizontal plate is fixedly installed on the surface of the positioning plate, and a positioning sleeve is installed through the middle of the horizontal plate, with the inner side of the positioning sleeve corresponding to the middle disc of the detection probe.

[0011] Furthermore, a pressure spring is fitted on the surface of the positioning sleeve, and the two ends of the pressure spring are installed between the horizontal plate and the positioning sleeve. Under the support of the horizontal plate and the elastic force of the pressure spring, the positioning sleeve stably clamps the detection probe. This structure is easy to disassemble and install, and the operation is simple and quick.

[0012] Furthermore, a U-shaped plate is fixedly installed on the inner wall of the machine body, and a guide rod is installed through the inside of the U-shaped plate. The upper end of the guide rod is fixedly installed on the lower end of the second washing plate. A return spring is sleeved on the surface of the guide rod, and the upper end of the return spring is connected to the lower end of the second washing plate. The lower end of the return spring is connected to the upper end of the U-shaped plate.

[0013] Furthermore, a motor is fixedly installed on the right side of the machine body, and a drive rod is installed at the output end of the motor. A cam is fixedly installed on the surface of the drive rod. A vertical plate is fixedly installed at the bottom of the two washing discs, and the position of the vertical plate corresponds to that of the cam. The two washing discs can be guided and moved along the guide rod, and reciprocate by means of the return spring on the surface of the guide rod. This allows the magnesium oxide on the surface of the two washing discs to be effectively cleaned during the vibration process, which helps to improve the overall cleaning effect.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. During the raw material cleaning process in magnesium oxide production, the cleaned liquid flows down and contacts the detection probe of the industrial online conductivity meter. At this time, soluble impurities contained in the magnesium oxide material, such as chlorides and sulfates, gradually dissolve and are discharged with the water during the washing process. In the initial stage of cleaning, the conductivity of the cleaning water is high due to the high concentration of dissolved substances. As cleaning continues, the soluble substances in the material gradually decrease, and the conductivity of the effluent gradually decreases. When the conductivity drops to the set process standard value, the system indicates that the cleaning has met the standard, and the cleaning water inlet pipe can be closed to end the cleaning process. It is important to perform the water inlet closure operation in a timely manner.

[0016] Furthermore, during the installation of the detection probe, the probe can be passed through the front end of the machine body and aligned with the groove at the bottom of the positioning plate. At this time, the positioning sleeve, supported by the horizontal plate and the elastic force of the pressure spring, stably clamps the detection probe. This structure is easy to disassemble and install, and the operation is simple and quick.

[0017] 2. When cleaning magnesium oxide inside the machine, the system uses a starting motor as a power source. After the motor runs, it drives the drive rod connected to it to rotate at a constant or variable speed. During the rotation of the drive rod, it will further drive the cam fixed on its surface to produce regular movement. The special contour structure of the cam periodically acts on the two washing discs when rotating, pushing the two washing discs to move axially along the guide rod.

[0018] Furthermore, the return spring installed outside the guide rod undergoes elastic deformation as the second washing disc moves, and provides a restoring force after the cam passes the action section, enabling the second washing disc to quickly and smoothly return to its original position, thus forming continuous and efficient reciprocating vibration. This vibration process causes the magnesium oxide particles attached to the surface of the second washing disc to be continuously subjected to the combined effects of mechanical vibration and liquid flow, effectively removing surface impurities and improving the contact efficiency between the cleaning medium and the material. This structural design not only enhances the dynamic treatment effect of magnesium oxide during the cleaning process, but also avoids cleaning blind spots caused by local deposition, thereby improving the overall cleaning effect and treatment consistency of the system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention in its open state;

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention in cross-section.

[0022] Figure 4 This is a side sectional view of the three-dimensional structure of the present invention;

[0023] Figure 5This is a bottom-view three-dimensional structural diagram of the electric valve tube of this utility model;

[0024] Figure 6 This is a cross-sectional three-dimensional structural diagram of the positioning sleeve of this utility model.

[0025] In the diagram: 1. Body; 2. Cover plate; 3. Water inlet pipe; 4. Secondary washing tray; 5. Screen plate; 6. Electric valve pipe; 7. Drain pipe; 8. Industrial online conductivity meter; 9. Detection probe; 10. Positioning plate; 11. Horizontal plate; 12. Positioning sleeve; 13. Pressure spring; 14. Drive rod; 15. Cam; 16. Vertical plate; 17. Retractable plate; 18. Guide rod; 19. Return spring. Detailed Implementation

[0026] 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.

[0027] Example 1: As Figures 1-6 The technical solution shown is a water-saving device for a secondary washing station in magnesium oxide production. To address the problem of inaccurate control of washing time, which easily leads to over-washing and waste of large amounts of industrial water, the device discloses: a machine body 1 and a cover plate 2 rotatably mounted on the upper part of the machine body 1; a secondary washing disc 4 is installed inside the machine body 1, and a sieve plate 5 is installed on the inner wall of the secondary washing disc 4; an industrial online conductivity meter 8 is installed at the front end of the machine body 1, and a detection probe 9 is installed at the lower end of the industrial online conductivity meter 8; a positioning auxiliary mechanism is installed in the middle of the detection probe 9, which allows for quick disassembly; a water inlet pipe 3 is connected to the left side of the machine body 1, and the right end of the water inlet pipe 3 is aligned with the interior of the secondary washing disc 4; an electric valve pipe 6 is connected to the bottom of the secondary washing disc 4, and the electric valve pipe 6 is connected to the detection probe. The positioning auxiliary mechanism is equipped with a positioning plate 10, and the upper end of the positioning plate 10 is fixedly installed at the lower end of the second washing plate 4. The middle groove of the positioning plate 10 is embedded in the upper end of the detection probe 9. A horizontal plate 11 is fixedly installed on the surface of the positioning plate 10, and a positioning sleeve 12 is installed through the middle of the horizontal plate 11. The inner side of the positioning sleeve 12 corresponds to the middle disc of the detection probe 9. A pressure spring 13 is sleeved on the surface of the positioning sleeve 12, and the two ends of the pressure spring 13 are installed between the horizontal plate 11 and the positioning sleeve 12. A motor is fixedly installed on the right side of the machine body 1, and a drive rod 14 is installed at the output end of the motor. A cam 15 is fixedly installed on the surface of the drive rod 14. A vertical plate 16 is fixedly installed at the bottom of the second washing plate 4, and the position of the vertical plate 16 corresponds to that of the cam 15.

[0028] During the cleaning process of magnesium oxide raw materials, firstly, the cover plate 2 is opened. After the cover plate 2 is opened, an appropriate amount of magnesium oxide raw materials are put into the second washing pan 4. The second washing pan 4 is equipped with a sieve plate 5, which supports the magnesium oxide raw materials. Then, an appropriate amount of cleaning solution is added into the second washing pan 4 through the water inlet pipe 3, so that the cleaning solution is higher than the magnesium oxide inside the second washing pan 4, thus pre-soaking the magnesium oxide raw materials. During cleaning, a stable power source is provided by a starting motor. The motor output shaft drives the connected drive rod 14 to rotate continuously and smoothly. During rotation, the drive rod 14 converts the rotational motion into a periodic pushing motion with the help of a cam 15 fixedly mounted on its surface. When the cam 15 rotates, it corresponds to the vertical plate 16. Due to the compression of the cam 15, the vertical plate 16 is pushed upward. After being pushed, the vertical plate 16 can pass through the fixed U-shaped plate 17 and push the second washing disc 4 upward. When the cam 15 continues to rotate, the vertical plate 16 falls back under the action of gravity, and the second washing disc 4 returns to its original position. Through the periodic compression and decompression action of the cam 15 on the vertical plate 16, the second washing disc 4 achieves continuous up and down movement, thereby loosening the impurities on the magnesium oxide surface and completing the cleaning of magnesium oxide. Then, the electric valve pipe 6 is opened, and the cleaned liquid falls and contacts the detection probe 9 of the industrial online conductivity meter 8. At this time, soluble impurities in the magnesium oxide material, such as chlorides and sulfates, are gradually dissolved and discharged during the water washing process. In the early stage of cleaning, the concentration of dissolved substances is high, and the conductivity of the cleaning water is relatively high. As cleaning progresses, the soluble substances in the material decrease, and the conductivity of the effluent gradually decreases. When the conductivity drops to the set process standard, the system prompts that the cleaning has reached the standard, and the inlet pipe 3 can be closed to end the cleaning. Meanwhile, when installing the detection probe 9, the detection probe 9 can be passed through the front end of the machine body 1 and aligned with the bottom groove of the positioning plate 10. By moving the lever at the front end of the positioning sleeve 12, the positioning sleeve 12 can be opened and then inserted into the positioning plate 10 until the disc in the middle of the detection probe 9 corresponds to the position of the positioning sleeve 12. Then, the lever at the front end of the positioning sleeve 12 is released. At this time, the positioning sleeve 12, supported by the horizontal plate 11 and under the elastic force of the pressure spring 13, clamps the detection probe 9, which makes the installation convenient. Conversely, when disassembly is required, the same operation is used, that is, the lever at the front end of the positioning sleeve 12 is moved to open the positioning sleeve 12. At this time, the positioning sleeve 12 can be pulled away from clamping the disc in the middle of the detection probe 9, which can be quickly disassembled and installed. The operation is simple and convenient. After cleaning, the water is drained through the drain pipe 7.

[0029] Example 2: Based on Example 1, the working principle of the industrial online conductivity meter 8 and the detection probe 9 installed on the electric valve pipe 6 at the bottom of the second washing pan 4 is disclosed:

[0030] First, a positioning plate 10 is set between the bottom of the second washing plate 4 and the electric valve pipe 6 that discharges the cleaning liquid. The detection probe 9 of the industrial online conductivity meter 8 is fixedly installed on the positioning plate 10 so that the probe is in direct contact with the outflowing cleaning liquid.

[0031] Secondly, by utilizing the relationship between the soluble salt content and conductivity in the cleaning solution, specifically: soluble impurities in magnesium oxide materials (such as chlorides, sulfates, etc.) are gradually dissolved and discharged during the washing process. In the initial stage of cleaning, the concentration of dissolved substances is high, and the conductivity of the cleaning water is relatively high; as the cleaning progresses, the soluble substances in the material decrease, and the conductivity of the effluent gradually decreases. Therefore, the change in conductivity can reflect whether the cleaning is close to completion.

[0032] Furthermore, the conductivity signal collected by the probe can be displayed or transmitted in real time via the conductivity signal. It can be connected to the field instrument (not shown in the attached figure) for display or transmitted to the central control system (not shown in the attached figure).

[0033] Finally, regarding the method for determining the end of cleaning, when the conductivity drops to the set process standard, the system will prompt that the cleaning has met the standard, and the cleaning water inlet valve can be closed to end the cleaning process. Different thresholds can be set according to different material types or batches, providing high flexibility.

[0034] Example 3: Figures 1-4 The technical solution shown, based on Embodiment 1, discloses the following to solve the problem of poor cleaning effect: a U-shaped plate 17 is fixedly installed on the inner wall of the machine body 1, and a guide rod 18 is installed through the inside of the U-shaped plate 17. The upper end of the guide rod 18 is fixedly installed on the lower end of the second washing plate 4. A reset spring 19 is sleeved on the surface of the guide rod 18, and the upper end of the reset spring 19 is connected to the lower end of the second washing plate 4. The lower end of the reset spring 19 is connected to the upper end of the U-shaped plate 17.

[0035] During this process, the second washing disc 4 is guided by the guide rod 18 along the inside of the U-shaped plate 17 to ensure that the second washing disc 4 can maintain a vertical movement during the up and down vibration, avoiding deviation or jamming. At the same time, the reset spring 19 sleeved on the surface of the guide rod 18 continuously provides elastic restoring force, so that the second washing disc 4 will be displaced upward when pushed by the cam 15, and will quickly return to its original position under the restoring action of the spring, forming a continuous and stable reciprocating vibration. This allows the magnesium oxide to fully contact the cleaning fluid during cleaning, thereby improving the cleaning effect.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-saving device for a secondary washing station in magnesium oxide production, comprising a body (1) and a cover plate (2) rotatably mounted on the upper end of the body (1), characterized in that: The machine body (1) is provided with two washing discs (4) inside, and the inner wall of the two washing discs (4) is provided with a sieve plate (5). An industrial online conductivity meter (8) is installed at the front end of the machine body (1), and a detection probe (9) is provided at the lower end of the industrial online conductivity meter (8). A positioning auxiliary mechanism is provided at the middle end of the detection probe (9), and it can be quickly disassembled through the positioning auxiliary mechanism.

2. The water-saving device for the secondary washing station in magnesium oxide production according to claim 1, characterized in that: The left side of the machine body (1) is connected to a water inlet pipe (3), and the right side port of the water inlet pipe (3) is aligned with the inside of the second washing plate (4). The bottom of the second washing plate (4) is connected to an electric valve pipe (6), and the electric valve pipe (6) corresponds to the position of the detection probe (9).

3. The water-saving device for the secondary washing station in magnesium oxide production according to claim 1, characterized in that: The positioning auxiliary mechanism is provided with a positioning plate (10), and the upper end of the positioning plate (10) is fixedly installed at the lower end of the second washing plate (4), and the middle groove of the positioning plate (10) is embedded in the upper end of the detection probe (9).

4. A water-saving device for a secondary washing station in magnesium oxide production according to claim 3, characterized in that: A horizontal plate (11) is fixedly installed on the surface of the positioning plate (10), and a positioning sleeve (12) is installed through the middle of the horizontal plate (11), and the inner side of the positioning sleeve (12) corresponds to the middle disc of the detection probe (9).

5. A water-saving device for a secondary washing station in magnesium oxide production according to claim 4, characterized in that: The surface of the positioning sleeve (12) is fitted with a pressure spring (13), and the two ends of the pressure spring (13) are installed between the horizontal plate (11) and the positioning sleeve (12).

6. A water-saving device for a secondary washing station in magnesium oxide production according to claim 1, characterized in that: The inner wall of the machine body (1) is fixedly installed with a spiral plate (17), and a guide rod (18) is installed through the inside of the spiral plate (17). The upper end of the guide rod (18) is fixedly installed at the lower end of the second washing plate (4). A reset spring (19) is sleeved on the surface of the guide rod (18). The upper end of the reset spring (19) is connected to the lower end of the second washing plate (4), and the lower end of the reset spring (19) is connected to the upper end of the spiral plate (17).

7. A water-saving device for a secondary washing station in magnesium oxide production according to claim 6, characterized in that: A motor is fixedly installed on the right side of the machine body (1), and a drive rod (14) is installed at the output end of the motor. A cam (15) is fixedly installed on the surface of the drive rod (14). A vertical plate (16) is fixedly installed at the bottom of the second washing plate (4), and the position of the vertical plate (16) corresponds to that of the cam (15).

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