CN116459954A - Self-adaptive coarse slime dehydration adjustment test system and method - Google Patents

Abstract

The invention relates to the technical field of coarse slime dehydration and provides a self-adaptive coarse slime dehydration test system, which comprises a screen basket, a scraper and a driving mechanism, wherein the driving mechanism comprises a first variable frequency motor and a second variable frequency motor, the screen basket is connected with an output shaft of the first variable frequency motor, the scraper is connected with an output shaft of the second variable frequency motor, an inlet end of a variable frequency slurry pump is communicated with a discharge port of a mixing bucket, an outlet end of the variable frequency slurry pump is communicated with a feed port of the coarse slime centrifuge, signal output ends of a belt scale and an online moisture monitor are connected with an input end of a control cabinet, and an output end of the control cabinet is simultaneously connected with a variable frequency slurry pump, a first variable frequency motor and a controlled end of the second variable frequency motor. The problems that the rotation speed ratio of the scraper and the screen basket is fixed, the rotation speed of the scraper or the screen basket cannot be independently regulated, and the perfect matching of the treatment capacity and the dewatering effect cannot be realized according to the actual condition of the site in the related art are solved.

Description

Self-adaptive adjustment coarse coal slime dehydration test system and method

technical field

The invention relates to the technical field of coarse coal slime dehydration, in particular to an adaptive adjustment coarse coal slime dehydration test system and method.

Background technique

At present, the test method of the centrifuge is a stand-alone test, that is, the stand-alone equipment is the main body, a single feeding, by changing the speed, feeding amount, changing the form of different sieve baskets (different sieve slots, strips), multiple tests, manual sampling and testing, to obtain experimental data such as product moisture, processing capacity, etc., each time it is necessary to stop the machine to adjust the parameters and repeat the test. Lack of real-time data acquisition and self-adaptive adjustment system, rapid adjustment and continuous testing are not possible.

At present, the dehydration effect of the coal slime centrifuge and the influence of various factors on the dehydration effect are still in the stage of theoretical calculation. There is a lack of systematic evaluation and testing of the dehydration effect, and it is difficult to select the appropriate centrifuge parameters according to the specific coal quality. With the increase in the amount of coarse slime selected, the horizontal scraper discharge slime centrifuge has become a new generation of large-capacity coarse slime dehydration equipment favored by many coal preparation plants. It is mainly used for dehydration of coarse slime with a particle size of 3-0mm or solid-liquid separation of similar materials in coal preparation plants. It is driven by a single pulley and realizes the speed difference between the spiral scraper and the screen basket through a planetary cycloid differential. The rotation speed of the sieve basket determines the centrifugal force and affects the dehydration effect. The size of the speed difference affects the dehydration effect and processing capacity. If the speed difference is large, the spiral scraper pushes the material quickly and the processing capacity is large, but the material stays on the surface of the screen basket for a short time and the dehydration effect is poor. The speed of the scraper and the screen basket can be adjusted by the frequency conversion motor, but because the transmission ratio of the differential is fixed, the speed ratio of the scraper and the screen basket is fixed.

Contents of the invention

The present invention proposes an adaptive adjustment test system and method for coarse coal slime dehydration, which solves the problem in the related art that the rotational speed ratio of the scraper and the sieve basket is fixed, the rotational speed of the scraper or the sieve basket cannot be adjusted independently, and the processing capacity and the dehydration effect cannot be perfectly coordinated according to the actual situation on site.

The technical solution of the present invention is as follows: the self-adaptive adjustment coarse coal slime dehydration test system includes a coal slime centrifuge, and the coal slime centrifuge includes a sieve basket, a scraper and a driving mechanism, and the sieve basket and the scraper are connected to the driving mechanism. The key is that the drive mechanism includes a first frequency conversion motor and a second frequency conversion motor. The belt scale and the online moisture monitor installed above the belt scale also include a frequency conversion slurry pump and a control cabinet. The inlet port of the frequency conversion slurry pump is connected to the discharge port of the mixing tank, the outlet port of the frequency conversion slurry pump is connected to the feed port of the coal slime centrifuge, the signal output ports of the belt scale and the online moisture monitor are connected to the input port of the control cabinet, and the output port of the control cabinet is connected to the controlled terminals of the frequency conversion slurry pump, the first variable frequency motor and the second variable frequency motor.

The coal slime centrifuge also includes a casing, a feeding pipe, a sieve basket pulley and a scraper pulley. The sieve basket is rotatably set inside the sieve basket, and the scraper is rotatably arranged inside the sieve basket. The outlet end of the feed pipe extends to the inside of the scraper. The end of the knife shaft away from the feeding pipe passes through the sieve basket shaft and is coaxially arranged and fixedly connected with the scraper pulley. The sieve basket pulley is connected with the output shaft of the first frequency conversion motor, and the scraper pulley is connected with the output shaft of the second frequency conversion motor.

The diameter of the sieve basket decreases linearly from one end close to the feed pipe to the other end. The scraper includes a cone with an opening facing the feed pipe and a spiral blade coiled on the outer wall of the cone. The shape of the cone matches the shape of the sieve basket.

The diameter of the distribution pan increases linearly from one end close to the feed pipe to the other end.

The diameter of the lower end of the mixing barrel decreases linearly from top to bottom.

A first regulating valve is connected between the inlet end of the frequency conversion slurry pump and the discharge port of the mixing tank, and a second regulating valve is connected between the outlet end of the frequency conversion slurry pump and the feed port of the coal slime centrifuge.

The system also includes a discharge pipe communicated with the discharge port of the mixing tank, and a discharge valve is arranged on the discharge pipe.

The gap between the scraper and the screen basket is 5-15mm.

The test method of self-adaptive adjustment coarse coal slime dehydration test system, the key lies in: described method comprises the following steps:

A. The online moisture monitor sends the detected data to the control cabinet;

B. The control cabinet compares the received real-time moisture data with the set moisture data. When the real-time moisture data is greater than the set moisture data, the control cabinet sends an instruction to increase the speed of the sieve basket through the first frequency conversion motor to reduce the speed difference between the sieve basket and the scraper. When the real-time moisture data is less than the set moisture data, the control cabinet sends an instruction to reduce the speed of the sieve basket through the first frequency conversion motor and increase the speed difference between the sieve basket and the scraper.

Step A also includes the following steps: the belt scale sends the detected data to the control cabinet;

Step B also includes the following steps: the control cabinet compares the received real-time discharge volume data with the set discharge volume data, and when the real-time discharge volume data is less than the set discharge volume data, the control cabinet sends an instruction to increase the speed of the frequency conversion slurry pump to increase the feed volume; when the real-time discharge volume data is greater than the set discharge volume data, the control cabinet sends an instruction to reduce the speed of the frequency conversion slurry pump and reduce the feed volume.

The working principle and beneficial effects of the present invention are as follows: a mixing tank is installed, a belt scale is installed between the discharge port of the slime centrifuge and the feed port of the mixing tank, an online moisture monitor is installed above the belt scale, a variable frequency slurry pump is installed between the discharge port of the mixing tank and the feed port of the coal slime centrifuge, the signal output terminals of the belt scale and the online moisture monitor are connected to the input terminal of the control cabinet, and the output terminal of the control cabinet is simultaneously connected to the controlled terminals of the variable frequency slurry pump, the first variable frequency motor and the second variable frequency motor. The screen basket is connected to the output shaft of the first frequency conversion motor, and the scraper is connected to the output shaft of the second frequency conversion motor. The screen basket and the scraper are respectively driven by two frequency conversion motors. The two are relatively free to rotate without fixed speed difference or speed ratio. The online moisture monitor uses far-infrared, microwave and other forms to monitor the real-time moisture content of the products discharged from the slime centrifuge to the belt scale. The control cabinet can be used to adjust the set moisture data and the set discharge volume (select the value within a reasonable range, and the two values are related to each other). The control cabinet compares and analyzes the collected real-time signal and the set value, adjusts the speed of the screen basket according to the real-time moisture data, thereby changing the speed difference between the screen basket and the scraper, and adjusts the speed of the frequency conversion slurry pump according to the size of the real-time discharge volume. The invention can adjust the rotation speed of the sieve basket and the difference between the rotation speed of the sieve basket and the scraper in real time. The reason why the rotation speed of the sieve basket and the scraper is not set separately, but the difference between the rotation speed of the sieve basket and the scraper is that it can precisely control (calculate) the discharge amount (processing capacity), and realize the perfect cooperation between the processing amount and the dehydration effect according to the actual situation on site. The frequency conversion slurry pump is used to pressurize the material and pump the material from the mixing tank to the slime centrifuge. The frequency conversion slurry pump is controlled by the control cabinet, and the feeding amount of the coal slime centrifuge can be controlled by adjusting the speed.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is the structural representation of the coal slime centrifuge in the present invention.

Fig. 3 is a functional block diagram of the present invention.

In the figure: 1, mixing tank, 2, frequency conversion slurry pump, 3, coal slime centrifuge, 3-1, screen basket, 3-2, scraper, 3-3, screen basket shaft, 3-4, casing, 3-5, feeding pipe, 3-6, screen basket pulley, 3-7, scraper pulley, 3-8, distribution tray, 3-9, scraper shaft, 4, online moisture monitor, 5, belt scale, 6, control cabinet, 7, first frequency conversion motor, 8, second Frequency conversion motor, 9, discharge pipe, 10, discharge valve, 11, first regulating valve, 12, second regulating valve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all involve the protection scope of the present invention.

Specific embodiment, as shown in Fig. 1, Fig. 2 and Fig. 3, self-adaptive adjustment coarse coal slime dehydration test system, comprises coal slime centrifuge 3, and coal slime centrifuge 3 comprises sieve basket 3-1, scraper 3-2 and driving mechanism, and sieve basket 3-1 and scraper 3-2 are all connected with drive mechanism, and drive mechanism comprises first frequency conversion motor 7 and second frequency conversion motor 8, and sieve basket 3-1 is connected with the output shaft of first frequency conversion motor 7, and scraper 3-2 is connected with the output shaft of second frequency conversion motor 8, and the system also includes mixing bucket 1. A belt scale 5 connected at one end to the discharge port of the coal slime centrifuge 3 and at the other end to the feed port of the mixing tank 1, and an online moisture monitor 4 arranged above the belt scale 5, and also includes a frequency conversion slurry pump 2 and a control cabinet 6. The inlet port of the frequency conversion slurry pump 2 is connected to the discharge port of the mixing tank 1, and the outlet port of the frequency conversion slurry pump 2 is connected to the feed port of the coal slime centrifuge 3. The signal output ports of the belt scale 5 and the online moisture monitor 4 are both connected to the input of the control cabinet 6 The output terminal of the control cabinet 6 is connected with the controlled terminals of the frequency conversion slurry pump 2, the first frequency conversion motor 7 and the second frequency conversion motor 8 at the same time.

As a further improvement to the present invention, the coal slime centrifuge 3 also includes a casing 3-4, a feed pipe 3-5, a sieve basket pulley 3-6 and a scraper pulley 3-7, the sieve basket 3-1 is rotatably arranged in the casing 3-4, the scraper 3-2 is rotatably arranged inside the sieve basket 3-1, the outlet end of the feed pipe 3-5 extends to the inside of the scraper 3-2, the outlet end of the frequency conversion slurry pump 2 communicates with the inlet end of the feed pipe 3-5, and the sieve basket 3-1 is away from the feed One end of the pipe 3-5 is coaxially provided with a sieve basket shaft 3-3, and the end of the scraper 3-2 away from the feed pipe 3-5 is coaxially provided with a scraper shaft 3-9. The knife belt pulley 3-7 is connected with the output shaft of the second variable frequency motor 8, the discharge port provided at the bottom of the casing 3-4 is located outside the screen basket 3-1, and a liquid discharge port is provided at the bottom of the casing 3-4 at a position corresponding to the screen basket 3-1. The coal slime centrifuge 3 also includes a distribution tray 3-8 arranged in the scraper 3-2 and coaxially arranged with the scraper shaft 3-9, and the outlet end of the feed pipe 3-5 faces the distribution tray 3-8.

As shown in Figure 2, the sieve basket pulley 3-6 is mounted on the right end of the sieve basket shaft 3-3, the sieve basket shaft 3-3 is installed at the left end of the sieve basket 3-1, and the sieve basket shaft 3-3 is a hollow shaft; the scraper shaft 3-9 is arranged inside the sieve basket shaft 3-3 through bearings, the length is longer than the sieve basket shaft 3-3, and can rotate relatively freely. The right end of the scraper shaft 3-9 is equipped with a scraper pulley 3-7, and the left end is equipped with a scraper 3-2; The cone of the scraper 3-2 is provided with a discharge hole for the material to be discharged from the scraper 3-2 to the screen basket 3-1. The first frequency conversion motor 7 drives the screen basket 3-1 to rotate through the screen basket pulley 3-6 and the screen basket shaft 3-3. The second frequency conversion motor 8 drives the scraper 3-2 to rotate synchronously through the scraper pulley 3-7 and the scraper shaft 3-9. The first frequency conversion motor 7 can be used to adjust the speed of the screen basket 3-1, and the second frequency conversion motor 8 can be used to adjust the speed of the scraper 3-2, so that there is a speed difference between the scraper 3-2 and the screen basket 3-1. The lower end of the pipe 3-5 is inclined so that the material can quickly enter the inside of the scraper 3-2 from the feeding pipe 3-5. The material passes through the distributing plate 3-8 which rotates at high speed with the scraper 3-2 to give an initial velocity, flows out from the discharge hole of the scraper 3-2, and is evenly distributed into the space between the scraper 3-2 and the screen basket 3-1. Under the action of centrifugal force, water and tiny particles pass through the sieve of the sieve basket 3-1 and are discharged through the discharge port; the dehydrated material adheres to the inner wall of the sieve basket 3-1, and under the action of the speed difference between the scraper 3-2 and the sieve basket 3-1, the inclination angle of the sieve basket 3-1 and the thrust of the scraper 3-2, the material moves to the discharge port of the coal slime centrifuge 3, falls into the discharge port and is discharged out of the machine. This dehydration process continues continuously.

As a further improvement to the present invention, the diameter of the sieve basket 3-1 is linearly reduced from one end close to the feed pipe 3-5 to the other end, the scraper 3-2 includes a cone with an opening facing the feed pipe 3-5, and a spiral blade coiled on the outer wall of the cone, the shape of the cone matches the shape of the sieve basket 3-1. As shown in Figure 2, the feeding pipe 3-5 is located on the left side of the sieve basket 3-1, the diameter of the sieve basket 3-1 decreases linearly from left to right, the opening of the cone faces to the left, and the diameter of the cone also decreases linearly from left to right, which is more conducive to the material sliding to the left and then discharged from the discharge port.

As a further improvement to the present invention, the diameter of the distribution tray 3-8 linearly increases from one end close to the feed pipe 3-5 to the other end. as shown in picture 2. This can make the material have a large enough contact area with the distribution tray 3-8, and is more conducive to the diffusion of the material to the periphery, and then enters the screen basket 3-1 through the discharge hole on the cone of the scraper 3-2.

As a further improvement to the present invention, the diameter of the lower end of the mixing tank 1 decreases linearly from top to bottom. As shown in FIG. 1 , in this way, the materials in the mixing tank 1 can be discharged to avoid material residue in the mixing tank 1 .

As a further improvement to the present invention, a first regulating valve 11 is connected between the inlet end of the frequency conversion slurry pump 2 and the discharge port of the mixing tank 1, and a second regulating valve 12 is connected between the outlet end of the frequency conversion slurry pump 2 and the feed port of the coal slime centrifuge 3. As shown in Fig. 1, the flow rate of the material entering the frequency conversion slurry pump 2 can be adjusted by using the first regulating valve 12, and the flow rate of the material returning to the slime centrifuge 3 can be adjusted by using the second regulating valve 12, so as to better meet the dehydration requirement. Both the controlled ends of the first regulating valve 11 and the second regulating valve 12 are connected to the control cabinet 6, and the flow adjustment of the first regulating valve 11 and the second regulating valve 12 is realized by using the parameter setting of the control cabinet 6, which saves the process of manual adjustment, and the adjustment accuracy is higher.

As a further improvement to the present invention, the system further includes a discharge pipe 9 communicated with the discharge port of the mixing tank 1 , and a discharge valve 10 is arranged on the discharge pipe 9 . As shown in FIG. 1 , the discharge valve 10 can be used to adjust the flow rate of the mixing tank 1 when discharging, so as to better meet the discharge requirements. The controlled end of the discharge valve 10 is connected to the control cabinet 6, and the flow adjustment of the discharge valve 10 is realized by using the parameter setting of the control cabinet 6, which saves the process of manual adjustment, and the adjustment accuracy is higher.

As a further improvement to the present invention, the gap between the scraper 3-2 and the screen basket 3-1 is 5-15mm, which not only enables the dehydrated material to be scraped off smoothly, but also prevents the scraper 3-2 from directly contacting the screen basket 3-1 and causing abrasion to it.

Embodiment 1, the test method of self-adaptive adjustment coarse coal slime dehydration test system, comprises the following steps:

A, the online moisture monitor 4 sends the detected data to the control cabinet 6;

B. The control cabinet 6 compares the received real-time moisture data with the set moisture data. The speed of the scraper 3-2 is always greater than the speed of the sieve basket 3-1. When the real-time moisture data is greater than the set moisture data, the control cabinet 6 sends an instruction to increase the speed of the sieve basket 3-1 through the first variable frequency motor 7, reduce the speed difference between the sieve basket 3-1 and the scraper 3-2, increase the centrifugal force, increase the residence time of the material in the sieve basket 3-1, prolong the dehydration time, and achieve the purpose of reducing the moisture content of the product; An instruction is issued to reduce the speed of the screen basket 3-1 through the first frequency conversion motor 7, and increase the speed difference between the screen basket 3-1 and the scraper 3-2, so as to save energy and reduce consumption, and accelerate material discharge.

Embodiment 2, the test method of self-adaptive adjustment coarse coal slime dehydration test system, comprises the following steps:

A, the online moisture monitor 4 sends the detected data to the control cabinet 6, and the belt scale 5 sends the detected data to the control cabinet 6;

B. The control cabinet 6 compares the received real-time moisture data with the set moisture data. At the same time, the control cabinet 6 compares the received real-time discharge volume data with the set discharge volume data. The speed of the scraper 3-2 is always greater than the speed of the screen basket 3-1. When the real-time discharge volume data is less than the set discharge volume data, the control cabinet 6 issues instructions to increase the speed of the frequency conversion slurry pump 2 and increase the feed volume. The increase in the feed volume may cause the product moisture to rise. The motor 7 increases the rotation speed of the screen basket 3-1, reduces the speed difference between the screen basket 3-1 and the scraper 3-2, so as to increase the centrifugal force, increase the residence time of the material in the screen basket 3-1, prolong the dehydration time, and achieve the purpose of reducing product moisture; The rotating speed of the basket 3-1 increases the rotating speed difference between the screen basket 3-1 and the scraper 3-2, so as to save energy and reduce consumption, and accelerate material discharge.

The present invention has two test methods of embodiment 1 and embodiment 2. The control cabinet can be used to select any one of the two test methods. After selection, the test system runs continuously and adjusts the speed of the sieve basket adaptively in real time, thereby changing the speed difference between the sieve basket and the scraper until the real-time moisture data is equal to the set moisture data (or the real-time moisture data is equal to the set moisture data and the real-time discharge volume data is equal to the set discharge volume data), then a relatively stable state is reached. The operating parameters of the centrifuge in this stable state are the best dehydration parameters for the material, providing for centrifuge parameter customization and field application parameter selection. The test data, and the self-adaptive adjustment coarse coal slime dehydration test method and intelligent system of the present invention can be applied to intelligent coal washing plants to improve the accuracy of coarse coal slime dehydration and the intelligence of the overall coal washing plant, and can realize the perfect combination of processing capacity and dehydration effect according to the actual situation on site.

Claims (10)

1. The utility model provides a coarse slime dehydration test system is adjusted in self-adaptation, includes coal slime centrifuge (3), and coal slime centrifuge (3) are including sieve basket (3-1), scraper (3-2) and actuating mechanism, and sieve basket (3-1) and scraper (3-2) all are connected its characterized in that with actuating mechanism: the driving mechanism comprises a first variable frequency motor (7) and a second variable frequency motor (8), the screen basket (3-1) is connected with an output shaft of the first variable frequency motor (7), the scraper (3-2) is connected with an output shaft of the second variable frequency motor (8), the system further comprises a mixing bucket (1), one end of the mixing bucket is connected with a discharge port of the slime centrifugal machine (3), the other end of the mixing bucket is connected with a belt scale (5) connected with a feed port of the mixing bucket (1), the belt scale is arranged above the belt scale (5), the belt scale also comprises a variable frequency slurry pump (2) and a control cabinet (6), an inlet end of the variable frequency slurry pump (2) is communicated with a discharge port of the mixing bucket (1), an outlet end of the variable frequency slurry pump (2) is connected with a feed port of the slime centrifugal machine (3), and signal output ends of the belt scale (5) and the on-line moisture monitor (4) are connected with an input end of the control cabinet (6), and an output end of the control cabinet (6) is simultaneously connected with a controlled end of the variable frequency slurry pump (2), the first variable frequency motor (7) and the second variable frequency motor (8).

2. The adaptive adjustment coarse slime dehydration test system of claim 1, wherein: the coal slime centrifugal machine (3) further comprises a shell (3-4), a feeding pipe (3-5), a screen basket belt wheel (3-6) and a scraper belt wheel (3-7), wherein the screen basket (3-1) is rotationally arranged in the shell (3-4), the scraper (3-2) is rotationally arranged at the inner side of the screen basket (3-1), the outlet end of the feeding pipe (3-5) extends into the interior of the scraper (3-2), the outlet end of the variable frequency slurry pump (2) is communicated with the inlet end of the feeding pipe (3-5), one end of the screen basket (3-1) far away from the feeding pipe (3-5) is coaxially provided with a screen basket shaft (3-3), one end of the screen basket (3-2) far away from the feeding pipe (3-5) is coaxially provided with a scraper shaft (3-9), the screen basket belt wheel (3-6) is coaxially arranged and fixedly connected with the screen basket shaft (3-3), one end of the scraper shaft (3-9) far away from the feeding pipe (3-5) is penetrated into the screen basket shaft (3-3) and then coaxially connected with the screen basket shaft (3-7), one end of the screen basket shaft (3-5) is coaxially arranged with the screen basket shaft (3-7) and fixedly connected with an output shaft (7) of the variable frequency motor (7) of the screen basket (7), the discharge hole formed in the bottom of the shell (3-4) is located at the outer side of the screen basket (3-1), the discharge hole is formed in the bottom of the shell (3-4) and in a position corresponding to the screen basket (3-1), the slime centrifugal machine (3) further comprises a distributing disc (3-8) which is arranged in the scraper (3-2) and is coaxial with the scraper shaft (3-9), and the outlet end of the feeding pipe (3-5) faces the distributing disc (3-8).

3. The adaptively adjusted coarse slime dehydration test system of claim 2, wherein: the diameter of the screen basket (3-1) is linearly reduced from one end close to the feeding pipe (3-5) to the other end, the scraper (3-2) comprises a cone with an opening facing the feeding pipe (3-5) and a spiral blade coiled on the outer wall of the cone, and the shape of the cone is matched with that of the screen basket (3-1).

4. The adaptively adjusted coarse slime dehydration test system of claim 2, wherein: the diameter of the material distributing disc (3-8) is linearly increased from one end close to the material feeding pipe (3-5) to the other end.

5. The adaptive adjustment coarse slime dehydration test system of claim 1, wherein: the diameter of the lower end of the mixing barrel (1) is linearly reduced from top to bottom.

6. The adaptive adjustment coarse slime dehydration test system of claim 1, wherein: a first regulating valve (11) is connected between the inlet end of the variable-frequency slurry pump (2) and the discharge port of the mixing barrel (1), and a second regulating valve (12) is connected between the outlet end of the variable-frequency slurry pump (2) and the feed inlet of the slime centrifugal machine (3).

7. The adaptive adjustment coarse slime dehydration test system of claim 1, wherein: the system also comprises a discharge pipe (9) communicated with the discharge hole of the mixing barrel (1), and a discharge valve (10) is arranged on the discharge pipe (9).

8. The adaptive adjustment coarse slime dehydration test system of claim 1, wherein: the clearance between the scraper (3-2) and the screen basket (3-1) is 5-15mm.

9. The method for adaptively adjusting a coarse slime dehydration test system as in claim 1, wherein: the method comprises the following steps:

A. the online moisture monitor (4) sends the detected data to the control cabinet (6);

B. the control cabinet (6) compares the received real-time moisture data with the set moisture data, when the real-time moisture data is larger than the set moisture data, the control cabinet (6) sends out an instruction, the rotating speed of the screen basket (3-1) is increased through the first variable frequency motor (7), and the rotating speed difference between the screen basket (3-1) and the scraper (3-2) is reduced; when the real-time moisture data is smaller than the set moisture data, the control cabinet (6) sends out an instruction, the rotating speed of the screen basket (3-1) is reduced through the first variable frequency motor (7), and the rotating speed difference between the screen basket (3-1) and the scraper (3-2) is increased.

10. The method for testing the self-adaptive coarse slime dehydration test system according to claim 9, wherein: step a further comprises the steps of: the belt scale (5) sends the detected data to the control cabinet (6);

step B further comprises the steps of: the control cabinet (6) compares the received real-time discharge amount data with the set discharge amount data, and when the real-time discharge amount data is smaller than the set discharge amount data, the control cabinet (6) sends out a command to increase the rotating speed of the variable-frequency slurry pump (2) and increase the feeding amount; when the real-time discharge amount data is larger than the set discharge amount data, the control cabinet (6) sends out an instruction, the rotating speed of the variable-frequency slurry pump (2) is reduced, and the feeding amount is reduced.