Water-coal separation system and separation assembly

Abstract

The invention relates to the technical field of mining machinery, and discloses a water-coal separation system and a separation assembly.The water-coal separation system comprises a drum screen, and a first annular supporting frame, a second annular supporting frame and a third annular supporting frame are arranged in the drum screen; the first annular supporting frame, the second annular supporting frame, the third annular supporting frame and the filtering gauze on the inner wall are arranged in the drum screen, the spiral blades are matched, efficient separation and conveying of materials are achieved, in the rotating process of the materials in the drum screen, particles smaller than the size of screen holes are separated through the filtering gauze, and the screening efficiency is improved. Meanwhile, in the discharging link of the separated coal slime mixture, through the combined design of a discharging opening in a second baffle, a first electromagnetic valve and an air pump, the coal slime mixture is rapidly and stably discharged through the pressure difference generated by the air pump, the discharging efficiency is greatly improved, and the problems that the coal slime mixture is not thoroughly separated, and the separation efficiency is high are solved. And a large amount of water still remains.

Description

Technical Field

[0001] The present invention relates to the technical field of mining machinery, and in particular to a water-coal separation system and a separation component. Background Art

[0002] At present, the coal-water separation methods at home and abroad are roughly divided into: gravity dehydration, centrifugal dehydration, filtration dehydration, filter press dehydration, filter aid assisted dehydration technology, etc. Recently, with the continuous improvement of equipment, the performance has been greatly improved, and the promotion and application has been rapid. Filter aid assisted dehydration technology is considered to be a promising dehydration technology. It can change the particle structure of the suspension to form loose and porous aggregates, which plays a role in changing the filter cake specific resistance, improving filtration efficiency and reducing filter cake moisture.

[0003] A Chinese patent with application number CN202111319699.4 discloses a coal-water separation device, including a base, a filter cartridge, a feed bin, a hydraulic cylinder and a filter screen. The base is fixedly connected to a machine platform, the filter cartridge is rotatably connected to the base, the feed bin abuts against the top of the filter cartridge to pass a coal-water mixture into the filter cartridge, the hydraulic cylinder is fixedly connected to the base, and the filter screen abuts against the bottom of the inner cavity of the filter cartridge; a telescopic rod is slidably connected in the hydraulic cylinder, one end of the telescopic rod extends into the filter cartridge, and a push plate is fixedly connected to the end of the telescopic rod extending into the filter cartridge, and the push plate abuts against the filter screen; a slag discharge port is provided between the filter cartridge and the hydraulic cylinder, and the telescopic rod retracts to allow the push plate to push the coal slag to the slag discharge port.

[0004] It is found in the above-mentioned prior art that in the process of advancing the water-coal separation process, the coal blocks contain a large number of small particles of coal ash. Once these small particles of coal blocks are mixed with water, a coal slime mixture will be formed. However, in terms of the current technical means, the simple centrifugal method is not effective in separating the water in the coal slime mixture. At the same time, in the process of separating the water in the coal slime mixture, due to the sudden drop in the water content of the coal slime mixture after separation, a large amount of residual coal slime will adhere to the inside of the separation component, such as being adsorbed on the inner wall, blocked in small gaps, etc., and is difficult to be discharged, which not only affects the separation effect, but may also cause equipment operation failures, increasing the uncertainty and maintenance costs in the production process.

[0005] Therefore, it is necessary to solve the above problems through water-coal separation system and separation components. Summary of the invention

[0006] The purpose of the present invention is to provide a water-coal separation system and a separation component to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a separation component, comprising a separation structure and a drum screen, wherein a first annular support frame, a second annular support frame and a third annular support frame are respectively provided inside the drum screen, a first baffle is provided on one side of the first annular support frame, a second baffle is provided on one side of the third annular support frame, the inner walls of the first annular support frame, the second annular support frame and the third annular support frame are all provided with the same filter gauze, and the inner surface of the filter gauze is provided with a spiral blade for conveying materials; The drum screen is provided with a rotating shaft through the second baffle, and two symmetrical sliding sleeves are provided at the left and right ends of the rotating shaft. The first annular support frame and the third annular support frame are connected to the outer surfaces of the two sliding sleeves through connecting rods, and a limiting sleeve is provided between the two sliding sleeves. The interior of the limiting sleeve is connected to the outer surface of the rotating shaft. A driving power supply is provided at the end of the rotating shaft away from the drum screen through an output shaft. The driving power supply is used to control the rotation of the rotating shaft, and a positioning plate is provided at the bottom of the driving power supply.

[0008] Preferably, a discharge port is provided on one side surface of the second baffle, a first electromagnetic valve is provided inside the discharge port, a conveying pipe is connected inside the discharge port, an end of the conveying pipe away from the second baffle is connected with an air pump, and the drum screen discharges the separated coal slime mixture to the outside through the air pump and the conveying pipe; The outer surface of the second baffle is slidably arranged inside the drum screen, and the discharge port on the second baffle is magnetically connected to one end of the conveying pipe. When the second baffle is in a rotating state, the discharge port on the second baffle is no longer connected to the end of the conveying pipe.

[0009] Preferably, a feed port is provided on the outer surface of the first baffle, a second electromagnetic valve is provided inside the feed port, and the interiors of the first baffle and the second baffle are both slidably connected to the outer surface of the rotating shaft.

[0010] Preferably, a first electric drive rod and a second electric drive rod are respectively provided at the left and right ends of the limit sleeve, and the output ends of the first electric drive rod and the second electric drive rod are respectively connected to two symmetrically arranged sliding links, and the first electric drive rod and the second electric drive rod are used to respectively control the two sliding sleeves to slide laterally along the surface of the rotating shaft; Microwave moisture sensors are provided on the inner diameter surfaces of the first annular support frame, the second annular support frame and the third annular support frame, and the first annular support frame, the second annular support frame and the third annular support frame detect moisture content data in the coal slime mixture through the microwave moisture sensors.

[0011] The present invention further provides a water-coal separation system, comprising a separation host body and a separation assembly as described in any one of the above technical solutions, wherein the separation assembly is arranged inside the separation host body, a support assembly is arranged at the bottom of the separation host body, and the support assembly is used to support the separation host body, the separation host body comprises a host housing, a support plate is arranged on one side of the inner wall of the host housing, a compression spring is arranged above the support plate, a guide plate is arranged on the support plate through the compression spring, a support rod is hingedly arranged on one side of the guide plate, and a screen plate is hingedly arranged on the guide plate through the support rod; The separation host body also includes a guide bin, the surface of which is in contact with one side of the guide plate, a feed channel is provided at the bottom of the guide bin, and a feed valve is provided at one end of the feed channel close to the guide bin, and the feed valve is used to control the material entering the feed channel.

[0012] Preferably, a limit block is provided at the bottom of the guide plate, a transmission rod is provided inside the limit block, and a vibration exciter is provided at one end of the transmission rod away from the limit block, and the vibration exciter is used to control the guide plate to vibrate through the transmission rod; When the exciter controls the guide plate to be in a vibrating state, the compression spring is frequently in a state of contraction and extension, the distance between the guide plate and the screen plate is frequently in a state of contraction and expansion, and the support rod is also frequently in a state of angular deflection.

[0013] Preferably, the support assembly comprises a support platform, the upper part of the support platform is arranged at the bottom of the mainframe housing, the support platform is used to support the mainframe housing, and the bottom of the support platform is provided with four mutually symmetrical load-bearing rods, and the bottom ends of the load-bearing rods are in contact with the ground; The bottom of the main housing is connected to a funnel, the bottom of the funnel is provided with a drain pipe, the drain pipe runs through the support platform, the drain pipe is arranged on the outer surface of the support platform, and the main housing discharges the separated water to the outside through the funnel and the drain pipe.

[0014] Technical effects and advantages of the present invention: 1. The present invention realizes efficient separation and transportation of materials by arranging a first annular support frame, a second annular support frame, a third annular support frame and a filter screen on the inner wall in combination with spiral blades. During the rotation of the material in the drum screen, particles smaller than the size of the sieve hole are separated through the filter screen, and the spiral blades continuously push the material forward. At the same time, in the discharge link of the coal slime mixture after separation, the combined design of the discharge port on the second baffle, the first electromagnetic valve and the air pump utilizes the pressure difference generated by the air pump to quickly and stably discharge the coal slime mixture, greatly improving the discharge efficiency and solving the problem that the coal slime mixture is not completely separated and still has a large amount of residual water.

[0015] 2. The present invention can accurately control the amount and time of material entering the drum screen through the feed port on the first baffle and the second electromagnetic valve, thereby avoiding material waste and adverse effects on the separation effect. For the internal structure of the equipment, the first electric drive rod and the second electric drive rod can control the lateral sliding of the sleeve, and adjust the position of the sleeve according to the material characteristics and separation requirements to optimize the structural stability and functionality. In the separation host body, the feed valve can accurately control the timing and flow rate of material entering, so that the equipment can adapt to changes in different materials and different production requirements, thereby improving the versatility and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention in an open state; Figure 3 It is a schematic diagram of the drum screen and related structures of the present invention; Figure 4 It is a schematic diagram of the initial state of the first annular support frame and the third annular support frame of the present invention; Figure 5 It is a schematic diagram of the spiral blade and related structures of the present invention; Figure 6 It is a schematic diagram of the filter gauze and related structures of the present invention; Figure 7 This is a schematic diagram of the first baffle and related structures of the present invention; Figure 8 This is a schematic diagram of the first annular support frame and the second annular support frame of the present invention in a filter pressing state; Fig. 9 This is a schematic diagram of the moving state of the first annular support frame of the present invention; Fig.10 This is a schematic diagram of the moving state of the third annular support frame of the present invention.

[0017] In the figure: 1. separation host body; 101. host shell; 102. support plate; 103. drainage plate; 104. compression spring; 105. sieve plate; 106. support rod; 107. diversion bin; 108. feed channel; 109. feed valve; 110. drain pipe; 111. funnel; 2. support assembly; 201. support platform; 202. load-bearing rod; 3. separation structure; 301. drive power supply; 302. output shaft; 303 , drum screen; 304, conveying pipe; 305, air pump; 306, first annular support frame; 307, connecting rod; 308, rotating shaft; 309, second annular support frame; 310, third annular support frame; 311, filter mesh; 312, first electric drive rod; 313, second electric drive rod; 314, spiral blade; 315, sliding sleeve; 316, limiting sleeve; 317, first baffle; 318, second baffle; 319, feed port. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Embodiment 1: Figures 1 to 10 As shown, this embodiment discloses a separation component, including a separation structure 3 and a drum screen 303, wherein a first annular support frame 306, a second annular support frame 309 and a third annular support frame 310 are respectively provided inside the drum screen 303, a first baffle 317 is provided on one side of the first annular support frame 306, a second baffle 318 is provided on one side of the third annular support frame 310, the inner walls of the first annular support frame 306, the second annular support frame 309 and the third annular support frame 310 are all provided with the same filter screen 311, the inner surface of the filter screen 311 is provided with a spiral blade 314 for conveying materials, and the drum screen 303 passes through A rotating shaft 308 is provided through the second baffle 318, and two symmetrical sliding sleeves 315 are provided at the left and right ends of the rotating shaft 308. The first annular support frame 306 and the third annular support frame 310 are connected to the outer surfaces of the two sliding sleeves 315 through the connecting rod 307. A limiting sleeve 316 is provided between the two sliding sleeves 315, and the interior of the limiting sleeve 316 is connected to the outer surface of the rotating shaft 308. A driving power supply 301 is provided at one end of the rotating shaft 308 away from the drum screen 303 through the output shaft 302. The driving power supply 301 is used to control the rotation of the rotating shaft 308, and a positioning plate is provided at the bottom of the driving power supply 301.

[0020] A discharge port is provided on one side surface of the second baffle 318, a first electromagnetic valve is provided inside the discharge port, a conveying pipe 304 is connected inside the discharge port, an end of the conveying pipe 304 away from the second baffle 318 is connected with an air pump 305, the drum screen 303 discharges the separated coal slime mixture to the outside through the air pump 305 and the conveying pipe 304, the outer surface of the second baffle 318 is slidably arranged inside the drum screen 303, the discharge port on the second baffle 318 is magnetically connected to one end of the conveying pipe 304, and when the second baffle 318 is in a rotating state, the discharge port on the second baffle 318 is no longer connected to the end of the conveying pipe 304.

[0021] During use, a discharge port, a first electromagnetic valve and an air pump 305 are arranged on the second baffle 318. When the coal slime mixture is separated in the drum screen 303, the first electromagnetic valve is opened, and the airflow generated by the air pump 305 can form a certain pressure difference, pushing the separated coal slime mixture to be discharged through the discharge port and the conveying pipe 304. This design solves the problem that the separated coal slime mixture is difficult to be discharged efficiently. The air pump 305 assists in conveying, greatly improves the discharge efficiency, and achieves the effect of quickly and stably discharging the separated coal slime mixture. At the same time, the second baffle 318 and the conveying pipe 304 are magnetically connected. When the second baffle 318 is in a stationary state, the discharge port and the conveying pipe 304 are closely connected under the action of magnetic force, ensuring the smooth transportation of the coal slime mixture; and when the second baffle 318 is driven by the rotating shaft 308 to rotate, the connection between the discharge port and the conveying pipe 304 is cut off, effectively preventing the leakage of materials when they are not needed to be discharged, and well solving the problem of opening and closing control of the discharge port, achieving the effect of flexible control of discharge, and accurately controlling the discharge timing according to actual production needs.

[0022] A feed port 319 is provided on the outer surface of the first baffle 317, and a second electromagnetic valve is provided inside the feed port 319. The interiors of the first baffle 317 and the second baffle 318 are both slidably connected to the outer surface of the rotating shaft 308. The left and right ends of the limiting sleeve 316 are respectively provided with a first electric drive rod 312 and a second electric drive rod 313. The output ends of the first electric drive rod 312 and the second electric drive rod 313 are respectively connected to two symmetrically arranged sliding sleeves 315. The first electric drive rod 312 and the second electric drive rod 313 are used to control the two sliding sleeves 315 to slide laterally along the surface of the rotating shaft 308. Microwave moisture sensors are provided on the inner diameter surfaces of the first annular support frame 306, the second annular support frame 309 and the third annular support frame 310. The first annular support frame 306, the second annular support frame 309 and the third annular support frame 310 all detect the moisture content data in the coal slime mixture through the microwave moisture sensors.

[0023] During use, a feed port 319 and a second electromagnetic valve are arranged on the first baffle 317. When material needs to enter the drum screen 303, the second electromagnetic valve is opened so that the material can smoothly enter from the feed port 319. When feeding is not needed, the second electromagnetic valve is closed to prevent the material from entering at will, thereby solving the problem of controlling the material entering the drum screen 303, realizing effective control of the feed amount and feed time, and avoiding waste of material and adverse effects on the separation effect due to excessive or insufficient feed.

[0024] In addition, the first baffle 317 is connected to the second baffle 318 and the rotating shaft 308 by sliding. When the rotating shaft 308 rotates driven by the driving power supply 301, the baffle will not hinder the normal operation of the rotating shaft 308, thereby solving the adaptation problem between the baffle and the rotating component, ensuring the stable operation of the entire separation structure 3, and achieving the effect that the baffle does not affect the rotation of the rotating shaft 308.

[0025] At the same time, a first electric drive rod 312 and a second electric drive rod 313 are provided to control the lateral sliding of the sleeve 315. When the position of the sleeve 315 needs to be adjusted, the first electric drive rod 312 or the second electric drive rod 313 is started, and the output end thereof pushes the sleeve 315 to move laterally along the surface of the rotating shaft 308. For example, when processing materials of different particle sizes, the force distribution of the internal supporting structure of the drum screen 303 can be changed by adjusting the position of the sleeve 315, so that the filter screen 311 and the spiral blades 314 can better play the role of filter pressing and centrifugal separation, thereby realizing the ability to flexibly adjust the position of the sleeve 315 as needed, further optimizing the structural stability and functionality, and improving the adaptability of the separation structure 3 to different working conditions.

[0026] Embodiment 2: This embodiment discloses a water-coal separation system, including a separation main body 1 and a separation component of embodiment 1, the separation component is arranged inside the separation main body 1, a support component 2 is provided at the bottom of the separation main body 1, the support component 2 is used to support the separation main body 1, the separation main body 1 includes a main body shell 101, a support plate 102 is provided on one side of the inner wall of the main body shell 101, a compression spring 104 is provided above the support plate 102, the support plate 102 is provided with a guide plate 103 through the compression spring 104, one side of the guide plate 103 is hingedly provided with a support rod 106, the guide plate 103 is hingedly provided with a sieve plate 105 through the support rod 106, the separation main body 1 also includes a guide bin 107, the surface of the guide bin 107 is in contact with one side of the guide plate 103, a feed channel 108 is provided at the bottom of the guide bin 107, and a feed valve 109 is provided at one end of the feed channel 108 close to the guide bin 107, and the feed valve 109 is used to control the material entering the feed channel 108.

[0027] When in use, a support plate 102, a compression spring 104, a guide plate 103, a support rod 106 and a screen plate 105 are arranged in the separation host body 1. After the material enters the separation host body 1, it first falls on the guide plate 103. Under the action of gravity, the material flows downward along the guide plate 103. The compression spring 104 is elastic. When the gravity and the impact force generated by the flow of the material act on the guide plate 103, the compression spring 104 will undergo elastic deformation, causing the guide plate 103 to shake to a certain extent. This shaking is conducive to the dispersion and preliminary screening of the material. At the same time, the support rod 106 is hinged to the guide plate 103 and the screen plate 105. During the shaking process of the guide plate 103, the angle of the support rod 106 will also change, further assisting the screening of the coal blocks on the screen plate 105, solving the problem of drainage and preliminary screening of the material in the separation host body 1, and achieving the effect of effective drainage and preliminary screening of the material.

[0028] In addition, a guide bin 107, a feed channel 108 and a feed valve 109 are provided. When the material needs to be transported into the separation host body 1, the feed valve 109 is opened, and the material enters from the guide bin 107 through the feed channel 108. The feed valve 109 can accurately control the timing and flow rate of the material entering. According to the working state of the separation host body 1 and the material processing requirements, the material entry is reasonably arranged to avoid material accumulation or insufficient supply, solve the control problem of the material entering the separation host body 1, and achieve the effect of accurately controlling the timing and flow rate of the material entering.

[0029] A limit block is provided at the bottom of the guide plate 103, a transmission rod is provided inside the limit block, and a vibrator is provided at the end of the transmission rod away from the limit block. The vibrator is used to control the guide plate 103 to vibrate through the transmission rod. When the vibrator controls the guide plate 103 to be in a vibrating state, the compression spring 104 is frequently in a state of contraction and extension, the distance between the guide plate 103 and the screen plate 105 is frequently in a state of contraction and expansion, and the support rod 106 is also frequently in a state of angular deflection.

[0030] The support assembly 2 includes a support platform 201, the upper part of the support platform 201 is arranged at the bottom of the main body shell 101, the support platform 201 is used to support the main body shell 101, and four mutually symmetrical load-bearing rods 202 are arranged at the bottom of the support platform 201, and the bottom ends of the load-bearing rods 202 are in contact with the ground. The bottom of the main body shell 101 is connected to a funnel 111, and a drain pipe 110 is arranged at the bottom of the funnel 111. The drain pipe 110 runs through the support platform 201, and the drain pipe 110 is arranged on the outer surface of the support platform 201. The main body shell 101 discharges the separated water to the outside through the funnel 111 and the drain pipe 110.

[0031] When in use, a limit block, a transmission rod and a vibrator are arranged at the bottom of the guide plate 103. After the vibrator is started, high-frequency vibration is generated. This vibration is transmitted to the guide plate 103 through the transmission rod, causing the guide plate 103 to vibrate strongly. On the vibrating guide plate 103, the material can be more fully in contact with the screen plate 105, which increases the chance of the material being screened, solves the problem of the vibration drive of the guide plate 103, and realizes the effect of making the guide plate 103 vibrate by the vibrator to enhance the material screening effect. In the process of the vibrator vibrating the guide plate 103, the compression spring 104 is frequently in In the state of contraction and extension, when the compression spring 104 contracts, the distance between the guide plate 103 and the screen plate 105 is reduced, and the squeezing and screening effect on the material is enhanced. When the compression spring 104 is stretched, the distance is enlarged, and the material has more space to move, which is convenient for the turning and further screening of the material. At the same time, the support rod 106 will also frequently deflect at an angle with the vibration of the guide plate 103, assisting the movement and screening of the material on the screen plate 105, solving the problem of effective handling of the material during the vibration process, achieving a better screening and processing effect on the material, and improving the screening quality and efficiency of the material.

[0032] In addition, by setting up a support component 2, including a support platform 201 and a load-bearing rod 202, the support platform 201 is located at the bottom of the main body shell 101, and the load-bearing rod 202 is evenly distributed at the bottom of the support platform 201 and in contact with the ground, forming a stable support structure. The main body shell 101 and various components inside it are heavy. The support component 2 can withstand the gravity of the main body shell 101 and evenly distribute it to the ground, which solves the support problem of the separation host body 1 and achieves the effect of stably supporting the separation host body 1, ensuring the stability of the separation host body 1 during operation and avoiding equipment damage or affecting the separation effect due to unstable support.

[0033] By connecting the funnel 111 and the drain pipe 110 at the bottom of the main housing 101, when the water-coal separation of the material is completed in the separation main body 1, the separated water flows into the funnel 111 under the action of gravity, and then is discharged to the outside through the drain pipe 110. The design of the funnel 111 can effectively collect the separated water. The drain pipe 110 runs through the support platform 201 and is arranged on its outer surface to facilitate the discharge of water, thus solving the problem of water discharge after separation and achieving the effect of smoothly discharging the separated water to the outside, thereby ensuring the dry environment inside the separation main body 1, which is beneficial to the normal operation of the equipment and extending its service life.

[0034] Although the centrifugal separation of the coal slime mixture is achieved by controlling the rotating shaft 308 and the mutual transmission cooperation of the first annular support frame 306, the second annular support frame 309, and the third annular support frame 310 through the driving rod power supply, the small particles such as coal slime are in full contact with water, and the water content of the coal slime mixture cannot be completely separated only by centrifugal separation, resulting in the water content in the coal slime mixture after centrifugal separation still being higher than the preset value, and it is impossible to separate it for secondary utilization. At this time, it is necessary to filter the coal slime mixture with high water content during the centrifugal separation process to separate the water in the coal slime mixture in a maximized manner, wherein the moisture data of the coal slime mixture in the drum screen 303 is detected and recorded and collected by a microwave moisture sensor, and the separation strategy is dynamically adjusted according to the data feedback detected by the microwave moisture sensor. Based on this, the specific adjustment steps are as follows: The moisture in the coal slime mixture is detected and recorded using the microwave moisture sensors on the first annular support frame 306 , the second annular support frame 309 and the third annular support frame 310 .

[0035] After the coal slime mixture and other small particles enter the feed channel 108 through the guide bin 107 and the feed valve 109, the second electromagnetic valve in the feed port 319 on the first baffle 317 is opened to receive the coal slime mixture and small particles of water coal in the feed channel 108, so that the material will slowly enter the drum screen 303 through the feed port 319. At this time, the driving power supply 301 controls the rotating shaft 308 to rotate, and at the same time, under the action of the transmission rod of the connecting rod 307, the first annular support frame 306, the second annular support frame 309 and the third annular support frame 310 are driven to rotate with the rotating shaft 308. In addition, the first annular support frame 306, the second annular support frame 309 and the third annular support frame 310 will drive the filter screen 311 and the spiral blade 314 to rotate at the same time. At the same time, under the rotation action of the spiral blade 314, the coal slime mixture and small particles of water coal that slowly enter the drum screen 303 will be filtered out. The granular water-coal is slowly conveyed toward the direction of the second baffle 318. When the material is completely conveyed, it is only necessary to close the second solenoid valve and the feed valve 109 in the feed channel 108 at the same time, so that the coal slime mixture cannot enter the diversion bin 107 and enter the inside of the drum screen 303 through the feed channel 108. At this time, with the driving power supply 301 in the working state, the spiral blade 314 is used to slowly convey the coal slime mixture toward the direction of the second baffle 318, so that the coal slime mixture is evenly distributed inside the drum screen 303, and then the driving power supply 301 is controlled to increase the speed and cooperate with the filter mesh 311 to generate centrifugal force on the coal slime mixture so that the water in the coal slime mixture is separated through the filter mesh 311, and the separated water is secondary filtered by the drum screen 303 and discharged to the inside of the main housing 101. Then the discharged water will be discharged to the outside through the funnel 111 and the drain pipe 110, thereby realizing the separation of water and coal.

[0036] After the centrifugal separation is completed, the rotation speed of the driving power supply 301 is reduced so that the coal slime mixture is evenly distributed inside the drum screen 303. At this time, it is only necessary to use the microwave moisture sensors on the first annular support frame 306 and the second annular support frame 309 to detect the moisture content data in the coal slime mixture and obtain the moisture data, and then compare the moisture data with the moisture data (preset value) at the time of discharge. The microwave moisture sensors on the first annular support frame 306 and the third annular support frame 310 respectively detect the moisture of the water-coal mixture in the two end areas inside the drum screen 303, which are recorded as area A and area B for subsequent representation.

[0037] When the microwave moisture sensor detects that the moisture content in the coal slime mixture is within the preset value, it means that the moisture content of the coal slime mixture has reached the discharge standard through centrifugal separation. At this time, it is only necessary to start the driving power supply 301 normally and cooperate with the spiral blade 314 to extract the dehydrated coal slime mixture to the outside through the air pump 305 and the conveying pipe 304 without any processing.

[0038] It is worth noting that: although the spiral blades 314 guide the coal slime mixture during rotation, the driving power supply 301 increases the rotation speed and generates a strong centrifugal force on the coal slime mixture. At this time, the coal slime mixture will not be guided by the spiral blades 314 and its position will no longer change.

[0039] When the microwave moisture sensor detects that the moisture content in the coal slime mixture is higher than the preset value, it means that the moisture in the coal slime mixture has not been completely separated by centrifugal separation. At this time, the driving power supply 301 is turned on to start rotating, and the spiral blade 314 is controlled to rotate through the rotating shaft 308. During this process, the driving power supply 301 is in clockwise rotation, and the spiral blade 314 is used to gradually move the coal slime mixture from area A to area B. At this time, the coal slime mixture in area A is transported to area B during the guidance of the spiral blade 314, and the coal slime mixture in area B will gradually increase, while the coal slime mixture in area A will become less and less. At this time, the first electric drive rod 312 is controlled to make the sliding sleeve 315 in area A gradually move along the rotating shaft 308 toward the direction of the limiting sleeve 316, thereby driving the first annular support frame 306 to move along the inner wall of the drum screen 303 toward the middle direction. At this time, the accommodating space in area A is reduced, and the coal slime mixture in area A is gradually transported to area B. When the sliding sleeve 315 moves to the specified position, it stops moving. At this time, the state of the first annular support frame 306 is as follows: Fig. 9As shown, the driving power source 301 is then controlled to control the rotating shaft 308 to rotate in the opposite direction, and the spiral blade 314 is cooperated to gradually transport the coal slime mixture in area B to area A. Since the space in area A has been reduced, area A will be quickly filled with the coal slime mixture during the reverse rotation and transportation of the coal slime. At the same time, during the transportation to area A, the second electric driving rod 313 is controlled to control the sliding sleeve 315 in area B to move in the direction of the limiting sleeve 316, so that the accommodating space of area B is gradually reduced. At the same time, after the adjustment is completed, the accommodating space of area A is kept consistent with that of area B. At this time, the coal slime mixture in the drum screen 303 is all gathered in the limiting sleeve. The area of ​​the sleeve 316 is located in the middle area of ​​the drum screen 303, and then the first annular support frame 306 and the third annular support frame are controlled to slide laterally toward the direction of the second annular support frame 309 through the cooperation of the first electric drive rod 312 and the second electric drive rod 313, and the stacking of spiral blades 314 is coordinated to achieve the filter pressing effect on the coal slime mixture. The moisture after the filter pressing separation will automatically escape from the filter holes on the filter mesh 311 into the drum screen 303, and after the secondary filtration is completed, it is discharged to the outside through the funnel 111 and the drain pipe 110, thereby realizing the purpose of separating the coal slime mixture with a high moisture content by a combination of centrifugation and filter pressing.

[0040] In addition, after the filter press separation is completed, the first electric drive rod 312 and the second electric drive rod 313 are controlled to drive the first annular support frame 306 and the third annular support frame 310 through the sliding sleeve 315 to move along the rotating shaft 308 toward the two ends of the drum screen 303 and restore to the initial position, and then the drive motor is controlled to rotate counterclockwise first and cooperate with the spiral blade 314 to transport the coal slime mixture toward the first baffle 317, and then the rotation reverse direction of the drive power supply 301 is quickly controlled to be set to clockwise rotation, and the coal slime mixture is transported from area A to area B, so that the aggregated coal slime mixture is redistributed evenly inside the drum screen 303, and then the moisture of the coal slime mixture in area A and area B is detected again by the microwave moisture sensor.

[0041] When the microwave moisture sensor in area A detects that the moisture content of the coal slime mixture is still higher than the preset value, the first electric drive rod 312 is used to control the sliding sleeve 315 in area A to move along the rotating rod toward the limit sleeve 316. During the movement, the first annular support frame 306 will also move along with the sliding sleeve 315 toward the limit sleeve 316. During this process, the spiral blades 314 on the filter screen 311 will slowly stack and squeeze the coal slime mixture in area A. When the first annular support frame 306 is controlled to move to the specified area, it stops moving. For specific status, please refer to Fig. 9, so that the distance between the two adjacent spiral blades 314 is shortened and the internal coal slime mixture is squeezed and limited to prevent the position of the coal slime mixture from changing, and then the driving power supply 301 is controlled to use the rotating shaft 308 to generate centrifugal force on the coal slime mixture in area A, and at the same time, during the rotation of the driving power supply 301, the first electric driving rod 312 is gradually controlled to make the sliding sleeve 315 gradually move toward the direction of the limiting sleeve 316, and the distance between the spiral blades 314 is gradually reduced, and the filter mesh 311 is used to produce a local centrifugal combined filter press to perform secondary dehydration on the coal slime mixture, and then the micro The microwave moisture sensor detects the moisture data in the coal slime mixture in area A again, and at the same time controls the first electric drive rod 312 to control the sliding sleeve 315 in area A to make the first annular support frame 306 quickly reciprocate and move laterally along the rotating shaft 308, so that the filter screen 311 frequently contracts and stretches to generate vibration, and utilizes this vibration to break up the coal slime mixture after filter pressing, thereby reducing the density of the coal slime mixture, and allowing the particles hidden between the small particles of the coal slime mixture to flow out to the outside through vibration, until the moisture data detected by the microwave moisture sensor is within the preset value.

[0042] After the water-coal separation is completed, the viscosity of the coal-slime mixture will increase due to the sudden drop in water content. As a result, during the discharge process, the air pump 305 and the conveying pipe 304 cannot completely absorb and discharge the coal-slime mixture in the drum screen 303 to the outside, resulting in a large amount of residual material adhering to the gap between the filter screen 311 and the spiral blade 314, which is difficult to clean. If the residue remains in the roller screen for a long time, the coal-slime mixture will accumulate more and more, causing serious wear and reducing the service life of the separation equipment. At this time, the first electric drive rod 312 and the second electric drive rod 313 are first controlled to simultaneously control the first annular support frame 306 and the third annular support frame 310 to make reciprocating lateral movements along the rotating shaft 308 toward the direction of the limit sleeve 316, so that the entire filter screen 311 is frequently in a state of contraction. and stretched state, thereby generating high-frequency vibration. At this time, due to the fast speed of each reciprocating movement of the first annular support frame 306 and the third annular support frame 310, the two adjacent spiral blades 314 will frequently stack and contact, thereby realizing the shedding of the adsorbed coal slime mixture due to the vibration generated. In addition, the coal slime mixture adhered to the filter screen 311 will also fall off due to the vibration generated, and the side close to the second annular support frame 309 will contact and collide with the second annular support frame 309. The coal slime mixture that falls off from the filter screen 311 and the spiral blades 314 will be slowly transported to the vicinity of the discharge port on the second baffle 318 as the spiral blades 314 rotate, and then the first solenoid valve is opened and the air pump 305 is cooperated to suck the remaining coal slime mixture to the outside.

[0043] It is worth noting that: since the feed channel 108 and the feed port 319 on the first baffle 317 are magnetically connected, when the position of the first baffle 317 changes, the first baffle 317 is no longer in contact with the feed channel 108. In addition, when the first baffle 317 rotates, the feed port 319 will not be in contact with the feed channel 108 due to misalignment. In addition, before the feed port 319 of the first baffle 317 is disconnected from the feed channel 108, it is necessary to ensure that all the coal sludge mixture and small-particle water-coal mixture materials in the feed channel 108 are completely introduced into the drum screen 303. In addition, the filter mesh 311 is made of a flexible material made of non-woven fabric or textile material, and the spiral blade 314 is made of elastic rubber material.

Claims

1. A separation component, characterized in that: The invention comprises a separation structure (3) and a drum screen (303), wherein a first annular support frame (306), a second annular support frame (309) and a third annular support frame (310) are respectively provided inside the drum screen (303), a first baffle (317) is provided on one side of the first annular support frame (306), a second baffle (318) is provided on one side of the third annular support frame (310), the inner walls of the first annular support frame (306), the second annular support frame (309) and the third annular support frame (310) are all provided with a same filter screen (311), and the inner surface of the filter screen (311) is provided with a spiral blade (314) for conveying materials; The drum screen (303) is provided with a rotating shaft (308) via a second baffle (318); two symmetrical sliding sleeves (315) are provided at the left and right ends of the rotating shaft (308); the first annular support frame (306) and the third annular support frame (310) are connected to the outer surfaces of the two sliding sleeves (315) via a connecting rod (307); a limiting sleeve (316) is provided between the two sliding sleeves (315); the interior of the limiting sleeve (316) is connected to the outer surface of the rotating shaft (308); a driving power supply (301) is provided at one end of the rotating shaft (308) away from the drum screen (303) via an output shaft (302); the driving power supply (301) is used to control the rotating shaft (308) to rotate; and a positioning plate is provided at the bottom of the driving power supply (301).

2. The separation assembly according to claim 1, characterized in that: A discharge port is provided on one side surface of the second baffle (318), a first electromagnetic valve is provided inside the discharge port, a conveying pipe (304) is connected inside the discharge port, an end of the conveying pipe (304) away from the second baffle (318) is connected to an air pump (305), and the drum screen (303) discharges the separated coal slime mixture to the outside through the air pump (305) and the conveying pipe (304).

3. The separation assembly according to claim 2, characterized in that: The outer surface of the second baffle (318) is slidably disposed inside the drum screen (303), and the discharge port on the second baffle (318) is magnetically connected to one end of the conveying pipe (304); when the second baffle (318) is in a rotating state, the discharge port on the second baffle (318) is no longer connected to the end of the conveying pipe (304).

4. The separation assembly according to claim 3, characterized in that: A feed port (319) is provided on the outer surface of the first baffle (317), a second electromagnetic valve is provided inside the feed port (319), and the interiors of the first baffle (317) and the second baffle (318) are both slidably connected to the outer surface of the rotating shaft (308).

5. The separation assembly according to claim 3, characterized in that: A first electric drive rod (312) and a second electric drive rod (313) are respectively provided at the left and right ends of the limiting sleeve (316); the output ends of the first electric drive rod (312) and the second electric drive rod (313) are respectively connected to two symmetrically arranged sliding sleeves (315); the first electric drive rod (312) and the second electric drive rod (313) are used to respectively control the two sliding sleeves (315) to slide laterally along the surface of the rotating shaft (308).

6. The separation assembly according to claim 3, characterized in that: Microwave moisture sensors are provided on the inner diameter surfaces of the first annular support frame (306), the second annular support frame (309) and the third annular support frame (310), and the first annular support frame (306), the second annular support frame (309) and the third annular support frame (310) detect moisture content data in the coal slime mixture through the microwave moisture sensors.

7. A water-coal separation system, comprising a separation host body (1) and a separation assembly according to any one of claims 1 to 6, wherein the separation assembly is arranged inside the separation host body (1), a support assembly (2) is arranged at the bottom of the separation host body (1), and the support assembly (2) is used to support the separation host body (1), and is characterized in that: The separation host body (1) comprises a host housing (101); a support plate (102) is provided on one side of the inner wall of the host housing (101); a compression spring (104) is provided above the support plate (102); a guide plate (103) is provided on the support plate (102) via the compression spring (104); a support rod (106) is hingedly provided on one side of the guide plate (103); and a screen plate (105) is hingedly provided on the guide plate (103) via the support rod (106); The separation host body (1) further comprises a guide bin (107), the surface of the guide bin (107) being in contact with one side of the guide plate (103), a feed channel (108) being provided at the bottom of the guide bin (107), and a feed valve (109) being provided at one end of the feed channel (108) close to the guide bin (107), the feed valve (109) being used to control the entry of materials into the feed channel (108).

8. The water-coal separation system according to claim 7, characterized in that: A limit block is provided at the bottom of the guide plate (103), a transmission rod is provided inside the limit block, and a vibration exciter is provided at one end of the transmission rod away from the limit block, the vibration exciter is used to control the guide plate (103) to vibrate through the transmission rod; When the exciter controls the guide plate (103) to be in a vibrating state, the compression spring (104) is frequently in a state of contraction and extension, the distance between the guide plate (103) and the screen plate (105) is frequently in a state of contraction and expansion, and the support rod (106) is also frequently in a state of angular deflection.

9. The water-coal separation system according to claim 8, characterized in that: The support assembly (2) comprises a support platform (201), the upper portion of the support platform (201) being arranged at the bottom of the mainframe housing (101), the support platform (201) being used to support the mainframe housing (101), and the bottom of the support platform (201) being provided with four mutually symmetrical load-bearing rods (202), the bottom ends of the load-bearing rods (202) being in contact with the ground.

10. The water-coal separation system according to claim 9, characterized in that: The bottom of the main housing (101) is connected to a funnel (111), the bottom of the funnel (111) is provided with a drain pipe (110), the drain pipe (110) passes through the support platform (201), the drain pipe (110) is arranged on the outer surface of the support platform (201), and the main housing (101) discharges separated water to the outside through the funnel (111) and the drain pipe (110).

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