Automatic pulping and sand discharging method for kaolin
The automatic pulping and sand discharge device can timely separate the ore pulp and sand and gravel, solving the tedious problem of sand and gravel separation in kaolin processing, improving production efficiency and equipment utilization, and meeting large-scale production needs.
Patent Information
- Application Number
- CN202510859046.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2025-09-26
AI Technical Summary
In the existing kaolin processing process, the separation of sand and gravel is cumbersome, affecting production efficiency, and there is a lack of effective time control measures, which leads to production delays or sand and gravel residue.
An automatic pulping and sand discharge device is used to realize automatic separation and control of slurry and sand and gravel through components such as the first and second control valves, sand and gravel sensors and slurry tamping parts, including the steps of predetermined amount detection and time control to ensure timely sand discharge and separation.
It improves the processing efficiency of kaolin processing, reduces equipment costs, meets large-scale production needs, and avoids production impacts caused by long or short sand discharge time.
Smart Images
Figure CN120695686A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of kaolin processing, and in particular to an automatic pulping and sand removal method for kaolin. Background Art
[0002] Kaolin, an important non-metallic mineral resource, is widely used in many fields, including ceramics, papermaking, and rubber. Slurry production is a crucial step in kaolin processing, and the separation of sand and gravel from the slurry directly affects the quality and production efficiency of subsequent products. Currently, when sand and gravel are discharged, a large amount of slurry is discharged along with the sand and gravel, and then the slurry and sand and gravel are separated. This method has obvious drawbacks, specifically the cumbersome separation process, resulting in low processing efficiency, affecting the progress of the entire kaolin processing line, and making it difficult to meet the needs of large-scale production. At the same time, existing technologies lack effective time control measures for sand and gravel discharge operations. If the sand and gravel discharge time is too long, subsequent separation processes and other processes will not be able to follow up in time, delaying production progress; if the sand and gravel discharge time is too short, a large amount of sand and gravel will remain, affecting subsequent slurry preparation.
[0003] Therefore, how to solve the above-mentioned deficiencies in the prior art has become the subject to be studied and solved by the present invention. Summary of the Invention
[0004] The purpose of the present invention is to provide an automatic slurry making and sand discharge method for kaolin.
[0005] In order to achieve the above object, the technical solution adopted by the present invention is: An automatic pulping and sand removal method for kaolin, using an automatic pulping and sand removal device, the automatic pulping and sand removal device comprising: A processing shell having a processing space and a sand and gravel storage area; a first control valve, for limiting the flow of slurry in the processing space to the sand and gravel storage area; a second control valve, for limiting the movement of sand and gravel out of the sand and gravel storage area; A first sand and stone sensing component and a second sand and stone sensing component are sequentially arranged from top to bottom, both of which are arranged in the processing space; Pulping pieces and recycling pieces; A screening element is provided in the sand and gravel storage area; The automatic slurry making and sand removal method comprises: Step 1: close the first control valve, the second control valve and the second sand and gravel sensor, and start the first sand and gravel sensor; Step 2: placing raw materials and water into the processing space; Step 3: The raw materials in the processing space are converted into slurry by the slurry pounding member; Step 4: When the total amount of sand and gravel in the processing space reaches a first predetermined amount, the first sand and gravel sensor sends a signal; Step 5: Activate the first control valve and the second sand and gravel sensing element, so that part of the slurry in the processing space passes through the sand and gravel storage area and enters the recovery element, and the sand and gravel are retained in the sand and gravel storage area by the screening element; Step 6: When the total amount of sand and gravel in the processing space drops to a second predetermined amount, the second sand and gravel sensor sends a signal; Step 7: After a first predetermined time, close the first control valve and the second sand and gravel sensor, add water into the processing space again, and repeat the above slurrying steps; Step 8: After a second predetermined time, the second control valve is activated to output the sand and gravel in the sand and gravel storage area; Step 9: After the third predetermined time, close the second control valve and repeat the above sand discharge step.
[0006] In step 1, the first and second control valves are closed to prevent loss of control over the sand and gravel transfer process. The second sand and gravel sensor is also closed to reduce energy consumption. The first sand and gravel sensor is activated to ensure timely detection.
[0007] With the help of step 2 and step 3, the ore slurry is manufactured, and the ore slurry is mixed with sand and gravel.
[0008] In step 4, the first sand and gravel sensor detects and timely performs sand discharge when the sand and gravel in the processing shell reaches a first predetermined amount. The sand discharge process can be completed manually, such as manually starting the first control valve when necessary.
[0009] In step five, part of the slurry is discharged along with the sand and gravel, and the slurry and sand and gravel are screened through the screening element. The slurry flows into the recovery element for collection, while the sand and gravel are retained in the sand and gravel storage area, avoiding the subsequent separation of the slurry and sand and gravel, thereby improving the overall processing progress of kaolin and reducing equipment costs.
[0010] In step five, the second sand and gravel sensor activates, enabling timely detection. The second sand and gravel sensor then emits a signal in step six. During the sand discharge process, the greater the amount of sand and gravel remaining in the processing space, the greater the impact on subsequent slurry production, affecting both total slurry production and sand discharge frequency. The second sand and gravel sensor provides information on sand and gravel discharge status, preventing excessive sand and gravel from remaining in the processing space and facilitating timely closing of the first control valve to prevent prolonged sand discharge.
[0011] In step seven, after the second sand and gravel sensor sends a signal, the first control valve does not close immediately. Instead, it closes after a predetermined time. This allows for flexible coordination with the position of the second sand and gravel sensor, reducing the requirements for its placement. For example, the second sand and gravel sensor does not need to be placed close to the discharge port of the processing space to avoid affecting the sand discharge process. After the first control valve closes, the subsequent sand discharge process can continue without affecting the subsequent pulping process. In other words, the subsequent sand discharge process can be synchronized with the subsequent pulping process, further improving the overall processing progress of kaolin.
[0012] In step eight, after closing the first control valve, the second control valve is not activated immediately, but rather after a second predetermined time. This reduces the amount of slurry discharged along with the sand and gravel, improves the separation of slurry from the sand and gravel, and further enhances the overall processing speed of the kaolin. A screw conveyor or other device can be deployed in the sand and gravel storage area to discharge the sand and gravel.
[0013] Take the second scheduled time and the third scheduled time as an example: the second scheduled time is set to 1 minute, the third scheduled time is set to 2 minutes, the time starts from closing the first control valve for 1 minute, the second control valve is started after 1 minute, the time starts from starting the second control valve for 2 minutes, and the second control valve is closed after 2 minutes.
[0014] To sum up, the present application separates the slurry from the sand and gravel in time during the sand discharge process, has a high processing efficiency, avoids affecting the entire kaolin processing progress, and can meet the needs of large-scale production; at the same time, the sand discharge process can be effectively controlled to avoid affecting the entire kaolin processing progress due to too long discharge time, and also avoid affecting the subsequent slurry preparation due to too short discharge time.
[0015] According to a further technical solution, the slurry pounding member includes a stirring structure; The step three includes the first and second stages that are performed sequentially: In the first stage, the stirring structure operates at a first speed; In the second stage, the stirring structure operates at a second speed; The second rotational speed is lower than the first rotational speed.
[0016] The first stage can be understood as the initial stage of stirring, and the first speed can be understood as the high speed, which is explained as follows: in the initial stage of stirring, the high speed is used to implement the stirring operation, which can make the material evenly dispersed in the water in a short time, which is beneficial to improving the overall uniformity of the slurry; when adding some additives (such as dispersants and flocculants), rapid stirring can increase the contact opportunity between the reagent and the kaolin particles, accelerate the dissolution and reaction process, and make the reagent play a better role.
[0017] The second stage can be understood as the late stage of stirring, and the second speed can be understood as the low speed, which is explained as follows: after the early rapid stirring, the materials have been basically dispersed evenly. At this time, reducing the stirring speed can avoid over-stirring; under the premise of ensuring the quality of the slurry, reducing the stirring speed can reduce energy consumption, extend the service life of the stirring equipment, and reduce production costs.
[0018] According to a further technical solution, in step 3, the slurry beating element stops operating for a fifth predetermined time after operating for a fourth predetermined time; In step 4, after the slurry-beating component stops running, the first sand and gravel sensing component selects whether to send a signal based on the detection data after the sixth predetermined time.
[0019] To facilitate understanding, an example is given here: the slurrying component will stop running for the next 2 minutes after running for ten minutes. After the interruption for 1 minute, the first sand and gravel sensing component will detect for 1 minute. The first sand and gravel sensing component will choose whether to send a signal based on the detection data within this 1 minute, and ignore the detection data before this 1 minute (this part of the data is discarded), or, before this 1 minute, the first sand and gravel sensing component is started but no detection is performed.
[0020] Whether the slurrying element is operating affects the stationary or moving state of the sand and gravel, which in turn affects the detection of the first sand and gravel sensor. Even if the slurrying element is interrupted, it takes time for the sand and gravel to reach (nearly) complete rest. In this embodiment, the first sand and gravel sensor determines whether to issue a signal based on detection data after the sixth predetermined time period, and this period is when the slurrying element is interrupted, thereby ensuring detection reliability.
[0021] According to a further technical solution, in step five, during the process of outputting the slurry into the recovery unit, the sand and gravel retained in the sand and gravel storage area are repeatedly moved.
[0022] Sand and gravel accumulate at the bottom of the sand and gravel storage area, affecting the slurry discharge rate. Based on this, repeated movement of sand and gravel can reduce the impact of sand and gravel on the slurry discharge process, increase the slurry discharge rate, and further improve the overall processing progress of kaolin.
[0023] According to a further technical solution, the step of repeatedly moving the sand and gravel retained in the sand and gravel storage area includes: During the first time period, the sand and gravel are repeatedly moved along an arc path or a straight path; During the second time period, the sand and gravel are moved repeatedly in a non-directional manner.
[0024] During the first time period, there is a lot of slurry in the sand and gravel storage area, and the sand and gravel can be moved repeatedly and regularly to reduce the difficulty of moving the sand and gravel while ensuring the slurry discharge effect.
[0025] The second time period is after the first time period. During this time period, most of the slurry has been discharged, and a small part of the slurry remains in the gaps between the sand and gravel. In order to promote the discharge of this part of the slurry, the sand and gravel are repeatedly moved along an undirected path, prompting the sand and gravel to repeatedly separate in different directions and then aggregate, thereby improving the discharge effect of the residual slurry.
[0026] In a further technical solution, in step six, the step of the second sand and gravel sensor sending a signal includes: The second sand and gravel sensor regularly detects the total amount of sand and gravel in the processing space; When the detection results for N consecutive times show that the total amount of sand and gravel in the processing space is less than or equal to the second predetermined amount, the second sand and gravel sensor sends a signal; Said N is a positive integer.
[0027] The detection of the second sand and gravel sensor can be affected by interference, affecting the accuracy of the test results. This is due to factors such as the continuous movement of sand and gravel during discharge. Through the configuration in this embodiment, multiple test results are mutually verified to improve the accuracy of the test results. The requirement for continuity between the test results further improves the accuracy of the test results, thereby increasing the probability of complete sand and gravel discharge, and balancing the two requirements of (near) complete sand and gravel discharge and controlling the processing progress.
[0028] According to a further technical solution, the automatic pulping and sand removal device further includes a screen; In step eight, the step of outputting the sand and gravel in the sand and gravel storage area includes: Outputting the sand and gravel in the sand and gravel storage area to the outside of the processing shell; moving the sand and gravel outside the processing shell in a direction away from the recovery unit; The sieve is used to separate the ore pulp from the sand and gravel, and the ore pulp and the sand and gravel move in opposite directions and enter the recovery unit.
[0029] It should be noted that due to the obstruction of sand and gravel, a small amount of slurry will remain in the sand and gravel storage area with the sand and gravel and be discharged to the outside of the processing shell together with the sand and gravel.
[0030] After the slurry is discharged to the outside of the processing shell together with sand and gravel, it is restricted by the screen and the sand and gravel can only move in the direction away from the recovery part and be recovered separately. The slurry moves in the opposite direction of the sand and gravel under the action of gravity and enters the recovery part, realizing the classified recovery of slurry and sand and gravel, and improving the recovery rate of slurry.
[0031] A further technical solution is to convey the slurry within the recovery unit to the processing space when the total amount of slurry within the recovery unit reaches a third predetermined amount, until the total amount of slurry within the recovery unit is less than a fourth predetermined amount. This eliminates the need for separate sorting of the slurry within the recovery unit and facilitates the continuous receipt of slurry discharged with the sand and gravel by the recovery unit. The slurry can be conveyed using existing conveying devices such as pumps. Determining the total amount of slurry can also be accomplished using existing sensors, which are not specifically limited, as long as they meet the purpose. The third predetermined amount is greater than the fourth predetermined amount, which is not specifically limited.
[0032] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this case. They are only used to distinguish components or operations described with the same technical terms.
[0033] As used herein, “connected” or “positioned” may refer to two or more components or devices being in direct or indirect physical contact with each other, or may refer to two or more components or devices operating or moving with each other.
[0034] The terms “include”, “including”, “have”, etc. used in this document are open-ended terms, meaning including but not limited to.
[0035] Unless otherwise noted, the terms used herein generally have their ordinary meanings in the art, in the context of this application, and in the specific context. Certain terms used to describe this application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art regarding the description of this application.
[0036] The terms "front", "back", "up", "down", "left", "right", etc. used in this article are all directional terms. In this case, they are only used to illustrate the positional relationship between the various structures, and are not used to limit the protection plan of this case and the specific direction during actual implementation.
[0037] The working principle and advantages of the present invention are as follows: Initially, the first and second control valves are closed to prevent loss of control over the sand and gravel transfer process. The second sand and gravel sensor is also closed to reduce energy consumption. The first sand and gravel sensor is activated to ensure timely detection.
[0038] During the sand discharge process, part of the slurry is discharged along with the sand and gravel. The slurry and sand and gravel are separated by the screening element. The slurry flows into the recovery element for collection, while the sand and gravel are retained in the sand and gravel storage area, avoiding the subsequent separation of the slurry and sand and gravel, improving the overall processing progress of kaolin and reducing equipment costs.
[0039] With the help of the second sand and gravel sensor, the discharge situation of sand and gravel can be known, so as to avoid a large amount of sand and gravel remaining in the processing space, and it is conducive to timely control and closing the first control valve to avoid extending the sand discharge time.
[0040] After the second sand and gravel sensor sends a signal, the first control valve does not close immediately, but instead closes after a predetermined time. This allows for flexible coordination with the position of the second sand and gravel sensor, reducing the requirements for its placement. For example, the second sand and gravel sensor does not need to be located close to the discharge port of the processing space to avoid affecting the sand discharge process. After the first control valve closes, the subsequent sand discharge process can continue without affecting the subsequent pulping process. In other words, the subsequent sand discharge process can be synchronized with the subsequent pulping process, further improving the overall processing progress of kaolin.
[0041] After closing the first control valve, the second control valve is not started immediately, but is started after the second predetermined time, thereby reducing the discharge amount of slurry discharged together with sand and gravel, improving the separation effect of slurry and sand and gravel, and further improving the overall processing progress of kaolin.
[0042] To sum up, the present application separates the slurry from the sand and gravel in time during the sand discharge process, has a high processing efficiency, avoids affecting the entire kaolin processing progress, and can meet the needs of large-scale production; at the same time, the sand discharge process can be effectively controlled to avoid affecting the entire kaolin processing progress due to too long discharge time, and also avoid affecting the subsequent slurry preparation due to too short discharge time. BRIEF DESCRIPTION OF THE DRAWINGS
[0043] Figure 1 This is a flow chart of automatic slurry making and sand removal under a specific implementation of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the automatic slurry making and sand discharge device according to an embodiment of the present invention. In the above drawings: 1. Processing shell; 11. Processing space; 12. Sand and gravel storage area; 13. Discharge port; 2. First control valve; 3. Second control valve; 4. First sand and gravel sensing component; 5. Second sand and gravel sensing component; 6. Pulping component; 7. Recovery component; 8. Screening component; 9. Screen; 100. Conveying device; 200. Conveyor; 300. Filter; 400. Pulping component; 500. Interlocking structure. DETAILED DESCRIPTION
[0044] The present invention will be further described below with reference to the accompanying drawings and embodiments: Embodiment: The present invention will be clearly illustrated below with drawings and detailed descriptions. After understanding the embodiments of the present invention, any person skilled in the art can make changes and modifications based on the techniques taught by the present invention without departing from the spirit and scope of the present invention.
[0045] The terms used herein are for describing specific embodiments only and are not intended to be limiting of the present invention. Singular forms such as "a," "the," "this," "this," and "the" as used herein also include plural forms.
[0046] See also Figure 1-Figure 2 An automatic pulping and sand removal method for kaolin, using an automatic pulping and sand removal device, the automatic pulping and sand removal device comprising: The processing shell 1 has a processing space 11 and a sand and gravel storage area 12; A first control valve 2 is used to limit the slurry in the processing space 11 from flowing to the sand and gravel storage area 12; A second control valve 3 is used to limit the movement of sand and gravel out of the sand and gravel storage area 12; The first sand and gravel sensing component 4 and the second sand and gravel sensing component 5 are arranged in sequence from top to bottom, both of which are arranged in the processing space 11; Pulping part 6 and recovery part 7; A screening element 8 is provided in the sand and gravel storage area 12; The automatic slurry making and sand removal method comprises: Step 1: Close the first control valve 2, the second control valve 3 and the second sand and gravel sensor 5, and start the first sand and gravel sensor 4; Step 2: Put the raw materials and water into the processing space 11; Step 3: The raw materials in the processing space 11 are made into slurry by the slurry pounding member 6; Step 4: When the total amount of sand and gravel in the processing space 11 reaches a first predetermined amount, the first sand and gravel sensor 4 sends a signal; Step 5: Start the first control valve 2 and the second sand and gravel sensor 5. Part of the slurry in the processing space 11 passes through the sand and gravel storage area 12 and enters the recovery element 7. The sand and gravel are retained in the sand and gravel storage area 12 by the screening element 8. Step 6: When the total amount of sand and gravel in the processing space 11 drops to a second predetermined amount, the second sand and gravel sensor 5 sends a signal; Step 7: After the first predetermined time, close the first control valve 2 and the second sand and gravel sensor 5, add water into the processing space 11 again, and repeat the above slurrying steps; Step 8: After a second predetermined time, the second control valve 3 is activated to output the sand and gravel in the sand and gravel storage area 12; Step 9: After the third predetermined time, close the second control valve 3 and repeat the above sand discharge step.
[0047] In step 1, the first and second control valves 2 and 3 are closed to prevent loss of control over the sand and gravel transfer process. The second sand and gravel sensor 5 is also closed to reduce energy consumption. The first sand and gravel sensor 4 is activated to ensure timely detection.
[0048] With the help of step 2 and step 3, the ore slurry is manufactured, and the ore slurry is mixed with sand and gravel.
[0049] In step 4, the sand and gravel sensor 4 can detect and promptly discharge the sand when the sand and gravel in the processing housing 1 reaches the first predetermined amount. The sand discharge process can be completed manually, such as manually starting the first control valve 2 when necessary.
[0050] In step five, part of the slurry is discharged along with the sand and gravel, and the slurry and sand and gravel are screened by the screening element 8. The slurry flows into the recovery element 7 for collection, while the sand and gravel are retained in the sand and gravel storage area 12, avoiding the subsequent separation of the slurry and sand and gravel, thereby improving the overall processing progress of kaolin and reducing equipment costs.
[0051] In step five, the second sand and gravel sensor 5 is activated to perform timely detection. The second sand and gravel sensor 5 sends a signal in step six. During the sand discharge process, the greater the total amount of sand and gravel remaining in the processing space 11, the greater the impact on the subsequent slurry production, such as affecting the total amount of slurry production and the frequency of sand discharge. With the help of the second sand and gravel sensor 5, the discharge status of sand and gravel can be known, avoiding a large amount of sand and gravel remaining in the processing space 11, and facilitating timely regulation and closing of the first control valve 2 to avoid extending the sand discharge time. The second sand and gravel sensor 5 can be closed immediately after sending a signal.
[0052] In step 7, after the second sand and gravel sensor 5 sends a signal, the first control valve 2 does not close immediately, but closes after a first predetermined time. This allows for flexible coordination with the position of the second sand and gravel sensor 5, reducing the position requirements for the second sand and gravel sensor 5. For example, the second sand and gravel sensor 5 does not need to be located close to the outlet of the processing space 11 to avoid affecting the sand discharge process. After the first control valve 2 is closed, the subsequent sand discharge process can continue, and this sand discharge process will not affect the subsequent pulping process. That is, the subsequent sand discharge process can be synchronized with the subsequent pulping process, thereby further improving the overall processing progress of kaolin.
[0053] In step eight, after closing the first control valve 2, the second control valve 3 is not started immediately, but is started after the second predetermined time, thereby reducing the discharge amount of slurry discharged together with sand and gravel, improving the separation effect of slurry and sand and gravel, and further improving the overall processing progress of kaolin.
[0054] Take the second scheduled time and the third scheduled time as an example: the second scheduled time is set to 1 minute, the third scheduled time is set to 2 minutes, the timing starts from closing the first control valve 2, and the second control valve 3 is started after 1 minute, the timing starts from starting the second control valve 3, and the second control valve 3 is closed after 2 minutes.
[0055] To sum up, the present application separates the slurry from the sand and gravel in time during the sand discharge process, has a high processing efficiency, avoids affecting the entire kaolin processing progress, and can meet the needs of large-scale production; at the same time, the sand discharge process can be effectively controlled to avoid affecting the entire kaolin processing progress due to too long discharge time, and also avoid affecting the subsequent slurry preparation due to too short discharge time.
[0056] The following additional explanations are given for the structures involved in this embodiment: the control valve is existing and will not be mentioned further; each sand and gravel sensing component uses an existing sensor to meet the detection purpose; the slurrying component 6 can use an existing stirring device, such as the stirring structure described below; the recovery component 7 can be set as a recovery box; the screening component 8 can use a screen 9.
[0057] In this embodiment, the pounding member 6 includes a stirring structure; The step three includes the first and second stages that are performed sequentially: In the first stage, the stirring structure operates at a first speed; In the second stage, the stirring structure operates at a second speed; The second rotational speed is lower than the first rotational speed.
[0058] The first stage can be understood as the initial stage of stirring, and the first speed can be understood as the high speed, which is explained as follows: in the initial stage of stirring, the high speed is used to implement the stirring operation, which can make the material evenly dispersed in the water in a short time, which is beneficial to improving the overall uniformity of the slurry; when adding some additives (such as dispersants and flocculants), rapid stirring can increase the contact opportunity between the reagent and the kaolin particles, accelerate the dissolution and reaction process, and make the reagent play a better role.
[0059] The second stage can be understood as the late stage of stirring, and the second speed can be understood as the low speed, which is explained as follows: after the early rapid stirring, the materials have been basically dispersed evenly. At this time, reducing the stirring speed can avoid over-stirring; under the premise of ensuring the quality of the slurry, reducing the stirring speed can reduce energy consumption, extend the service life of the stirring equipment, and reduce production costs.
[0060] In step seven, in addition to adding water, raw materials can also be added. The stirring operation after adding can be set according to the present embodiment and can also be adjusted.
[0061] The stirring structure refers to the existing ones, such as including a motor, a stirring shaft and a stirring blade.
[0062] The processing shell 1 is generally provided with a discharge port 13, through which most of the slurry is discharged for subsequent sorting operations. A filter 300 can be provided at the discharge port 13 to prevent the discharge of sand and gravel. A slurry brush 400 (refer to the above-mentioned stirring shaft and stirring blades) and a linkage structure 500 (such as a belt) are provided on one side of the filter 300. The slurry brush 400 can prevent sand and gravel from clogging the filter 300. In one embodiment, the motor drives the stirring shaft to rotate, which can directly drive the stirring blades to rotate and can also drive the slurry brush 400 to move (rotate) via the belt.
[0063] In this embodiment, in step 3, the slurry beating member 6 stops operating for a fifth predetermined time after operating for a fourth predetermined time; In step 4, after the slurry pounding component 6 stops running, the first sand and gravel sensing component 4 selects whether to send a signal according to the detection data after the sixth predetermined time.
[0064] For ease of understanding, an example is given here to illustrate: the slurrying component 6 interrupts its operation within the next 2 minutes after running for ten minutes. After interrupting for 1 minute, the first sand and gravel sensing component 4 detects for 1 minute. The first sand and gravel sensing component 4 chooses whether to send a signal based on the detection data within this 1 minute, and ignores the detection data before this 1 minute (this part of the data is discarded), or, before this 1 minute, the first sand and gravel sensing component 4 is started but no detection is performed.
[0065] Whether the slurry tamping element 6 is operating affects the stationary or moving state of the sand and gravel, which in turn affects the detection of the first sand and gravel sensor 4. Even if the slurry tamping element 6 is interrupted, it takes time for the sand and gravel to reach (nearly) complete rest. In this embodiment, the first sand and gravel sensor 4 determines whether to issue a signal based on detection data after the sixth predetermined time period, and this period is when the slurry tamping element 6 is interrupted, thus ensuring detection reliability.
[0066] In this embodiment, in step five, during the process of outputting the slurry into the recovery unit 7 , the sand and gravel retained in the sand and gravel storage area 12 are repeatedly moved.
[0067] Sand and gravel accumulate at the bottom of the sand and gravel storage area 12, which affects the discharge speed of the slurry. Based on this, by repeatedly moving the sand and gravel, the impact of the sand and gravel on the slurry discharge process can be reduced, the slurry discharge speed can be increased, and the overall processing progress of kaolin can be further improved.
[0068] When the sand and gravel are discharged, part of the slurry will be discharged together. At this time, the main considerations are the proportion of the slurry recovered into the recovery unit 7 and whether to affect the overall processing progress. When the sand and gravel are not repeatedly moved, the sand and gravel will hinder the rapid recovery of the slurry into the recovery unit 7. In order to avoid affecting the sand and gravel collection progress, it is necessary to open the second control valve 3 after a predetermined time to discharge the sand. At this time, the sand and gravel are mixed with a large amount of slurry and need to be separated and processed separately. Even with the help of the screen 9 described below, when there is a lot of slurry, the slurry is easy to leak to the outside of the conveyor 200. When it is necessary to reduce the discharge volume of the slurry, the step of repeatedly moving the sand and gravel remaining in the sand and gravel storage area 12 is only performed after closing the first control valve 2.
[0069] In this embodiment, the step of repeatedly moving the sand and gravel retained in the sand and gravel storage area 12 includes: During the first time period, the sand and gravel are repeatedly moved along an arc path or a straight path; During the second time period, the sand and gravel are moved repeatedly in a non-directional manner.
[0070] During the first time period, there is a lot of slurry in the sand and gravel storage area 12, and the sand and gravel can be moved repeatedly and regularly, which reduces the difficulty of moving the sand and gravel while ensuring the slurry discharge effect.
[0071] The second time period is after the first time period. During this time period, most of the slurry has been discharged, and a small part of the slurry remains in the gaps between the sand and gravel. In order to promote the discharge of this part of the slurry, the sand and gravel are repeatedly moved along an undirected path, prompting the sand and gravel to repeatedly separate in different directions and then aggregate, thereby improving the discharge effect of the residual slurry.
[0072] An example of non-directional movement is as follows: first move the sand and gravel in the first direction, then move the sand and gravel in the second direction, the third direction, and the fourth direction in sequence. There is an angle between each direction. This process can be repeated, or the sand and gravel can be moved in the second direction first and then repeated in other directions in sequence.
[0073] In some embodiments, in a first time period, a first force is applied to the sand and gravel, and in a second time period, a second force is applied to the sand and gravel, where the second force is greater than the first force, so as to increase the movement amplitude of the sand and gravel in the second time period, thereby further improving the discharge effect of the residual slurry.
[0074] When moving sand and gravel along an arc path, a rotary drive device such as a motor can be used.
[0075] When moving sand and gravel along a straight path, a linear drive device such as a cylinder can be used.
[0076] When sand and gravel are moved in a non-directional manner, a rotary drive device such as a motor can be combined with a linear drive device such as a cylinder.
[0077] In this embodiment, in step six, the step of the second sand and gravel sensor 5 sending a signal includes: The second sand and gravel sensor 5 regularly detects the total amount of sand and gravel in the processing space 11; When the detection results for N consecutive times show that the total amount of sand and gravel in the processing space 11 is less than or equal to the second predetermined amount, the second sand and gravel sensor 5 sends a signal; Said N is a positive integer.
[0078] In some embodiments, N is set to 3.
[0079] The detection of the second sand and gravel sensor 5 can be affected by interference, which can affect the accuracy of the test results. This is due to factors such as the continuous movement of sand and gravel during discharge. Through the configuration of this embodiment, multiple test results are mutually verified to improve the accuracy of the test results. The continuity requirement of each test result further improves the accuracy of the test results, thereby increasing the probability of complete sand and gravel discharge, and balancing the two requirements of (near) complete sand and gravel discharge and controlling the processing progress.
[0080] In this embodiment, the automatic pulping and sand removal device further includes a screen 9; In step eight, the step of outputting the sand and gravel in the sand and gravel storage area 12 includes: Outputting the sand and gravel in the sand and gravel storage area 12 to the outside of the processing shell 1; Move the sand and gravel outside the processing shell 1 in a direction away from the recovery unit 7; The screen 9 is used to separate the ore pulp from the sand and gravel, and the ore pulp and the sand and gravel move in opposite directions and enter the recovery unit 7.
[0081] It should be noted that due to the obstruction of sand and gravel, a small portion of the slurry will remain in the sand and gravel storage area 12 along with the sand and gravel and will be discharged to the outside of the processing shell 1 together with the sand and gravel.
[0082] After the slurry is discharged to the outside of the processing shell 1 together with the sand and gravel, it is restricted by the screen 9, and the sand and gravel can only move in the direction away from the recovery part 7 to achieve separate recovery. The slurry moves in the opposite direction of the sand and gravel under the action of gravity and enters the recovery part 7, realizing the classified recovery of the slurry and sand and gravel, and improving the recovery rate of the slurry.
[0083] In some embodiments, the sand and gravel are output to the outside of the processing shell 1 and are placed on the conveyor 200, and then move in an oblique upward direction. The screen 9 is installed on the conveyor 200. After the slurry is discharged onto the conveyor 200, it moves in an oblique downward direction and enters the recovery part 7.
[0084] In this embodiment, when the total amount of slurry in the recovery unit 7 reaches a third predetermined amount, the slurry in the recovery unit 7 is transported to the processing space 11 until the total amount of slurry in the recovery unit 7 is less than a fourth predetermined amount. This eliminates the need for separate sorting of the slurry in the recovery unit 7 and facilitates the recovery unit 7 to continuously receive slurry discharged with the sand and gravel. The slurry can be transported using a conventional conveying device 100, such as a conveying pump. The total amount of slurry can also be determined using conventional sensors, which are not limited to specific ones, as long as they meet the purpose. The third predetermined amount is greater than the fourth predetermined amount, which is not limited to specific ones.
[0085] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention are intended to be covered by the scope of protection of the present invention.
Claims
1. An automatic pulping and sand removal method for kaolin, characterized by: Automatic slurry making and sand discharge device is used, which includes: A processing shell (1) having a processing space (11) and a sand and gravel storage area (12); A first control valve (2) is used to restrict the slurry in the processing space (11) from flowing to the sand and gravel storage area (12); a second control valve (3) for limiting the movement of sand and gravel out of the sand and gravel storage area (12); A first sand and stone sensing component (4) and a second sand and stone sensing component (5) are arranged in sequence from top to bottom, both of which are arranged in the processing space (11); a slurry-making part (6) and a recycling part (7); A screening element (8) is provided in the sand and gravel storage area (12); Automatic slurry making and sand removal methods include: Step 1: Close the first control valve (2), the second control valve (3) and the second sand and gravel sensor (5), and start the first sand and gravel sensor (4); Step 2: Place the raw materials and water into the processing space (11); Step 3: The raw materials in the processing space (11) are made into slurry by the slurrying member (6); Step 4: When the total amount of sand and gravel in the processing space (11) reaches a first predetermined amount, the first sand and gravel sensor (4) sends a signal; Step 5: Activate the first control valve (2) and the second sand and gravel sensing element (5), and part of the slurry in the processing space (11) passes through the sand and gravel storage area (12) and enters the recovery element (7), and the sand and gravel are retained in the sand and gravel storage area (12) by the screening element (8); Step 6: When the total amount of sand and gravel in the processing space (11) drops to a second predetermined amount, the second sand and gravel sensor (5) sends a signal; Step 7: After the first predetermined time, close the first control valve (2) and the second sand and gravel sensor (5), inject water into the processing space (11) again, and repeat the above-mentioned slurrying steps; Step 8: After the second predetermined time, the second control valve (3) is activated to output the sand and gravel in the sand and gravel storage area (12); Step 9: After the third predetermined time, close the second control valve (3) and repeat the above sand discharge steps.
2. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: The pounding member (6) includes a stirring structure; The step three includes the first and second stages that are performed sequentially: In the first stage, the stirring structure operates at a first speed; In the second stage, the stirring structure operates at a second speed; The second rotational speed is lower than the first rotational speed.
3. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: In step 3, the slurry beating element (6) stops running within a fifth predetermined time after running for a fourth predetermined time; In step 4, after the slurry-beating component (6) stops running, the first sand and gravel sensing component (4) selects whether to send a signal based on the detection data after the sixth predetermined time.
4. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: In step five, during the process of outputting the slurry into the recovery unit (7), the sand and gravel remaining in the sand and gravel storage area (12) are repeatedly moved.
5. The automatic pulping and sand removal method for kaolin according to claim 4, characterized in that: The step of repeatedly moving the sand and gravel retained in the sand and gravel storage area (12) comprises: During the first time period, the sand and gravel are repeatedly moved along an arc path or a straight path; During the second time period, the sand and gravel are moved repeatedly in a non-directional manner.
6. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: In step six, the step of the second sand and gravel sensor (5) sending a signal includes: The second sand and gravel sensing element (5) regularly detects the total amount of sand and gravel in the processing space (11); When the detection results for N consecutive times show that the total amount of sand and gravel in the processing space (11) is less than or equal to the second predetermined amount, the second sand and gravel sensor (5) sends a signal; Said N is a positive integer.
7. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: The automatic slurry making and sand removal device further comprises a screen (9); In step eight, the step of outputting the sand and gravel in the sand and gravel storage area (12) includes: Outputting the sand and gravel in the sand and gravel storage area (12) to the outside of the processing shell (1); Moving the sand and gravel outside the processing housing (1) in a direction away from the recovery member (7); The screen (9) is used to separate the ore pulp from the sand and gravel, and the ore pulp and the sand and gravel move in opposite directions and enter the recovery unit (7).
8. The automatic pulping and sand removal method for kaolin according to claim 1, characterized in that: When the total amount of slurry in the recovery part (7) reaches a third predetermined amount, the slurry in the recovery part (7) is transported to the processing space (11) until the total amount of slurry in the recovery part (7) drops to a fourth predetermined amount.