Method and system for solid-liquid separation of washing fly ash

Abstract

The invention relates to the technical field of fly ash treatment, and discloses a washing fly ash solid-liquid separation system which comprises a filtering box, a filtering assembly is arranged in the filtering box, a reciprocating driving part is fixedly installed at the left end of the filtering assembly, a smashing assembly is fixedly installed at the bottom of the filtering box, and a feeding assembly is arranged at the bottom of the smashing assembly. And a drying assembly is arranged at the bottom of the right end of the feeding assembly. The output end of a hydraulic cylinder intermittently stretches out and draws back to drive a mounting frame to move left and right in a reciprocating mode, the mounting frame continuously vibrates in the left-right direction by arranging a spring, and therefore washing fly ash is guided while being filtered by a filter plate, and the filtered washing fly ash penetrates through a discharging channel to enter a smashing box; and one of the crushing rollers is driven to rotate by the motor I, so that the washing fly ash in the crushing box is crushed by the two crushing rollers, and the purposes of filtering and crushing the washing fly ash and having a good removal effect on water in the washing fly ash are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fly ash treatment, and in particular to a method and system for solid-liquid separation of water-washed fly ash. Background Art

[0002] Washing fly ash is a technical means of treating fly ash from garbage incineration. Washing fly ash refers to the process of removing soluble chlorides and other harmful substances in fly ash by washing with water. The core purpose of this technology is to reduce the content of chloride ions, soluble salts and heavy metals in fly ash, so that it can be treated or recycled in a safer and more environmentally friendly way.

[0003] After washing fly ash, a large amount of sludge will be formed. In the subsequent treatment process, there is still a lot of water in the sludge. When it is directly dried, it is easy to cause the sludge to compact, and the water in the sludge is difficult to remove, which affects the treatment effect of the sludge. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a method and system for solid-liquid separation of washed fly ash, which has the advantages of good treatment effect on sludge produced by washed fly ash, and solves the problem of unsatisfactory treatment effect of directly drying the sludge of washed fly ash.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of achieving good sludge treatment effect on washed fly ash, the present invention provides the following technical solution: a washed fly ash solid-liquid separation system, comprising a filter box, a filter assembly is arranged inside the filter box, a reciprocating drive member is fixedly installed on the left end of the filter assembly, a crushing assembly is fixedly installed on the bottom of the filter box, a feeding assembly is arranged at the bottom of the crushing assembly, and a drying assembly is arranged at the bottom of the right end of the feeding assembly.

[0008] Preferably, a feeding hopper is fixedly installed on the upper side of the left half of the filter box, a partition plate is fixedly installed between the front and rear side walls of the right half of the filter box, a feed discharge channel is formed between the partition plate and the right side wall of the filter box, an inclined plate 1 is fixedly installed on the front and rear side walls of the feed discharge channel, an inclined plate 2 is fixedly installed between the top of the partition plate and the bottom of the left side wall of the filter box, and a drain pipe is provided at the bottom left side of the filter box.

[0009] Preferably, the filter assembly includes a mounting frame, a through groove is penetrated through the upper half of the right end of the mounting frame, a filter plate is fixedly mounted on the inner wall of the mounting frame, the filter plate is inclined and higher on the left and lower on the right, rollers are provided on the front and rear sides of the mounting frame, support rails are fixedly mounted on the front and rear side walls of the filter box, the rollers roll on the top of the support rails, inclined plates three are fixedly mounted on the left and right side walls of the mounting frame, the inclined plates three are inclined, and one end of two inclined plates three facing each other is higher than one end of two inclined plates three facing each other.

[0010] Preferably, the reciprocating drive member includes a support frame fixedly mounted on the left end of the filter box, a hydraulic cylinder is fixedly mounted on the support frame, the hydraulic cylinder passes through the support frame, a sliding plate is fixedly mounted on the right output end of the hydraulic cylinder, a fixed rod is slidably connected with an array on the sliding plate, a baffle is fixedly mounted on the left end of the fixed rod, the baffle is sleeved on the outside of the output end of the hydraulic cylinder, the right end of the fixed rod is fixedly mounted on the filter assembly, springs are fixedly mounted on the left and right sides of the sliding plate, the other end of the spring away from the sliding plate is attached to the filter assembly or the baffle, and an avoidance hole is penetrated through the left end of the filter box, and the aperture of the avoidance hole is larger than the diameters of the baffle and the sliding plate.

[0011] Preferably, the crushing assembly includes a crushing box welded to the bottom of the filter box, the bottom of the crushing box is integrally formed with a contraction portion, two crushing rollers are rotatably connected between the left and right side walls of the crushing box, a motor is fixedly installed on the right end of one of the crushing rollers, and transmission gears are fixedly installed on the left ends of the two crushing rollers, and the two transmission gears are meshed with each other.

[0012] Preferably, the feeding assembly includes a feeding barrel fixedly mounted at the bottom of the contraction portion, the two ends of the feeding barrel are sealed, a discharge pipe is arranged at the bottom of the right end of the feeding barrel, a rotating shaft is arranged at the axis of the discharge pipe, the rotating shaft passes through the feeding barrel and is rotatably connected to the feeding barrel, a spiral blade is fixedly mounted on the surface of the inner wall of the feeding barrel; a pulley 1 is fixedly mounted at the center of one of the transmission gears, a pulley 2 is fixedly mounted at the left end of the rotating shaft, and pulley 1 and pulley 2 are connected by a transmission belt.

[0013] Preferably, the drying assembly includes a drying cylinder, two rings are fixedly installed on the outer wall of the drying cylinder, two supporting wheels are fitted on the bottom of each ring, a spiral plate is arrayed on the inner wall of the drying cylinder, a ring gear is fixedly installed on the outer wall of the drying cylinder, a driving gear is meshed on the ring gear, a motor 2 is fixedly installed at the center of the driving gear, a feed port is opened through the circumferential surface of the right end of the drying cylinder, a sleeve is sleeved on the outer side of the right end of the drying cylinder, the sleeve is connected to the bottom of the discharge pipe, and an air inlet pipe is fixedly installed on the right end of the sleeve.

[0014] The method of using the water-washed fly ash solid-liquid separation system is as follows:

[0015] S1. Put the washed fly ash into the feeding hopper, so that the washed fly ash falls on the top of the filter plate. The output end of the hydraulic cylinder is intermittently extended and retracted to drive the installation frame to move back and forth. The installation frame is continuously vibrated in the left and right directions through the setting of the spring. Therefore, the filter plate guides the washed fly ash while filtering it. The filtered washed fly ash passes through the discharge channel and enters the crushing box;

[0016] S2, one of the crushing rollers is driven to rotate by the motor 1, and the other crushing roller is driven to rotate in the opposite direction in cooperation with the transmission action of the transmission gear, so that the two crushing rollers crush the washed fly ash in the crushing box, and the crushed washed fly ash enters the interior of the feeding cylinder through the contraction part;

[0017] S3. When the transmission gear rotates, it drives the pulley 1 to rotate, and cooperates with the transmission effect of the pulley 1, the transmission belt and the pulley 2 to drive the rotating shaft to rotate, so as to transport the washed fly ash in the feeding barrel to the right, and the washed fly ash in the feeding barrel then passes through the discharge pipe and enters the sleeve;

[0018] S4. The driving gear is driven by motor 2 to rotate, which drives the ring gear and the drying drum to rotate. The feed port is intermittently connected with the discharge pipe, so that the crushed washed fly ash intermittently enters the drying drum. As the drying drum rotates, the spiral plate inside the drying drum drives the washed fly ash to move to the left, and finally discharged from the left end of the drying drum. At the same time, hot air is introduced into the drying drum through the air inlet pipe to dry the washed fly ash.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a method and system for solid-liquid separation of washed fly ash, which has the following beneficial effects:

[0021] 1. The method and system for solid-liquid separation of washed fly ash drive the installation frame to move back and forth left and right through the intermittent extension and retraction of the output end of the hydraulic cylinder, and the installation frame is continuously vibrated in the left and right directions through the setting of the spring, so that the filter plate guides the washed fly ash while filtering it, and the filtered washed fly ash passes through the discharge channel and enters the inside of the crushing box; one of the crushing rollers is driven to rotate by the motor 1, and the other crushing roller is driven to rotate in the opposite direction in cooperation with the transmission action of the transmission gear, so that the two crushing rollers crush the washed fly ash inside the crushing box, and the crushed washed fly ash enters the inside of the feeding barrel through the contraction part; thereby achieving the purpose of filtering and crushing the washed fly ash and removing the water inside the washed fly ash effectively.

[0022] 2. The method and system for solid-liquid separation of washed fly ash, when the transmission gear rotates, drives the first pulley to rotate, cooperates with the transmission action of the first pulley, the transmission belt and the second pulley to drive the rotating shaft to rotate, and transports the washed fly ash inside the feeding cylinder to the right, and then the washed fly ash inside the feeding cylinder passes through the discharge pipe into the sleeve; the driving gear is driven by the second motor to rotate, driving the ring gear and the drying cylinder to rotate, and the feed port is intermittently connected with the discharge pipe, so that the crushed washed fly ash intermittently enters the drying cylinder, and with the rotation of the drying cylinder, the spiral plate inside the drying cylinder drives the washed fly ash to move to the left, and finally discharged from the left end of the drying cylinder, and at the same time, hot air is introduced into the drying cylinder through the air inlet pipe to dry the washed fly ash. Thus, the purpose of intermittent feeding and drying the washed fly ash is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a water-washed fly ash solid-liquid separation system proposed by the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a water-washed fly ash solid-liquid separation system proposed by the present invention, in which the filter assembly and the reciprocating drive member are separated from the filter box;

[0025] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a filter box, a filter assembly and a reciprocating drive member of a water-washed fly ash solid-liquid separation system proposed by the present invention;

[0026] Figure 4 A schematic diagram of the three-dimensional structure of a reciprocating drive component of a water-washed fly ash solid-liquid separation system proposed by the present invention;

[0027] Figure 5 A schematic diagram of the three-dimensional structure of a crushing component and a feeding component of a water-washed fly ash solid-liquid separation system proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of a drying component of a water-washed fly ash solid-liquid separation system proposed by the present invention.

[0029] In the figure: 100, filter box; 200, filter assembly; 300, reciprocating drive member; 400, crushing assembly; 500, feeding assembly; 600, drying assembly;

[0030] 101, hopper; 102, partition plate; 103, inclined plate 1; 104, inclined plate 2; 105, drain pipe; 201, mounting frame; 202, filter plate; 203, roller; 204, support rail; 205, inclined plate 3;

[0031] 301, support frame; 302, hydraulic cylinder; 303, sliding plate; 304, fixing rod; 305, stop plate; 306, spring; 307, avoidance hole;

[0032] 401, crushing box; 402, contraction part; 403, crushing roller; 404, motor 1; 405, transmission gear;

[0033] 501, feeding barrel; 502, discharge pipe; 503, rotating shaft; 504, spiral blade; 505, pulley 1; 506, pulley 2; 507, transmission belt;

[0034] 601, drying cylinder; 602, sleeve ring; 603, support wheel; 604, spiral plate; 605, ring gear; 606, driving gear; 607, motor 2; 608, feed port; 609, sleeve; 610, air inlet pipe. DETAILED DESCRIPTION

[0035] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1 A water-washed fly ash solid-liquid separation system includes a filter box 100, a filter assembly 200 is arranged inside the filter box 100, a reciprocating drive member 300 is fixedly installed on the left end of the filter assembly 200, a crushing assembly 400 is fixedly installed on the bottom of the filter box 100, a feeding assembly 500 is arranged at the bottom of the crushing assembly 400, and a drying assembly 600 is arranged at the bottom of the right end of the feeding assembly 500.

[0038] See also Figure 2-3A feeding hopper 101 is fixedly installed on the upper side of the left half of the filter box 100, a partition plate 102 is fixedly installed between the front and rear side walls of the right half of the filter box 100, a material discharge channel is formed between the partition plate 102 and the right side wall of the filter box 100, and an inclined plate 103 is fixedly installed on the front and rear side walls of the material discharge channel. The inclined plate 103 guides the washed fly ash inside the material discharge channel so that the washed fly ash enters the inside of the crushing assembly 400 from the middle of the material discharge channel. An inclined plate 204 is fixedly installed between the top of the partition plate 102 and the bottom of the left side wall of the filter box 100, and a drain pipe 105 is arranged at the bottom of the left side of the filter box 100. The water filtered out of the filter assembly 200 flows to the left under the guidance of the inclined plate 204, and then the water is discharged through the drain pipe 105.

[0039] See also Figure 2-3 The filter assembly 200 includes a mounting frame 201, and the partition plate 102 is attached to the bottom of the mounting frame 201. A through slot is provided through the upper half of the right end of the mounting frame 201, and a filter plate 202 is fixedly installed on the inner wall of the mounting frame 201. The filter plate 202 is inclined, and the left side is higher than the right side. The top of the right end of the filter plate 202 is flush with the bottom wall of the through slot at the right end of the mounting frame 201. Therefore, the washed fly ash has a tendency to move to the right under the guidance of the filter plate 202. Rollers 203 are provided on the front and rear sides of the mounting frame 201, and support rails 204 are fixedly installed on the front and rear side walls of the filter box 100. The rollers 203 are attached to the top of the support rails 204 and roll, and the rollers 203 and the mounting frame 201 are supported by the support rails 204. The left and right side walls of the installation frame 201 are fixedly installed with inclined plates 3 205, which are inclined, and the opposite ends of the two inclined plates 3 205 are higher than the opposite ends of the two inclined plates 3 205. Therefore, the water passing through the filter plate 202 flows to the middle of the inclined plate 2 104 under the gathering effect of the inclined plate 3 205, so as to prevent the water from the filter plate 202 from entering the material discharge channel during the reciprocating movement of the installation frame 201.

[0040] See also Figure 2-Figure 4The reciprocating drive member 300 includes a support frame 301 fixedly mounted on the left end of the filter box 100, a hydraulic cylinder 302 fixedly mounted on the support frame 301, the hydraulic cylinder 302 penetrates the support frame 301, a sliding plate 303 is fixedly mounted on the right output end of the hydraulic cylinder 302, a fixed rod 304 is slidably connected to the sliding plate 303, a baffle 305 is fixedly mounted on the left end of the fixed rod 304, the baffle 305 is sleeved on the outer side of the output end of the hydraulic cylinder 302, the right end of the fixed rod 304 is fixedly mounted on the filter assembly 200, springs 306 are fixedly mounted on both sides of the sliding plate 303, the other end of the spring 306 away from the sliding plate 303 is attached to the filter assembly 200 or the baffle 305, and a avoidance hole 307 is opened through the left end of the filter box 100, and the diameter of the avoidance hole 307 is larger than the diameter of the baffle 305 and the sliding plate 303. The avoidance hole 307 is used to avoid the sliding plate 303 and the baffle 305. The output end of the hydraulic cylinder 302 reciprocates to move the sliding plate 303 back and forth. The filter assembly 200 is reciprocated to move back and forth through the connection of the spring 306. The spring 306 can be extended and retracted to make the filter assembly 200 vibrate continuously.

[0041] See also Figure 5 The crushing assembly 400 includes a crushing box 401 welded to the bottom of the filter box 100, and a contraction portion 402 is integrally formed at the bottom of the crushing box 401. Two crushing rollers 403 are rotatably connected between the left and right side walls of the crushing box 401, and a motor 404 is fixedly installed on the right end of one of the crushing rollers 403. Transmission gears 405 are fixedly installed on the left ends of the two crushing rollers 403, and the two transmission gears 405 are meshed with each other.

[0042] See also Figure 5 The feeding assembly 500 includes a feeding barrel 501 fixedly mounted at the bottom of the contraction portion 402, and a linear opening is provided at the top of the feeding barrel 501 for communicating with the contraction portion 402. Both ends of the feeding barrel 501 are sealed, and a discharge pipe 502 is provided at the bottom of the right end of the feeding barrel 501. A rotating shaft 503 is provided at the axis of the discharge pipe 502. The rotating shaft 503 penetrates and is rotatably connected to the feeding barrel 501. A spiral blade 504 is fixedly mounted on the surface of the inner wall of the feeding barrel 501. A pulley 1 505 is fixedly mounted at the center of one of the transmission gears 405, and a pulley 2 506 is fixedly mounted at the left end of the rotating shaft 503. The pulley 1 505 and the pulley 2 506 are connected by a transmission belt 507. Through the transmission action of the pulley 1 505, the pulley 2 506 and the transmission belt 507, when the transmission gear 405 rotates, the rotating shaft 503 is driven to rotate.

[0043] See also Figure 5The drying assembly 600 includes a drying cylinder 601. Two sleeves 602 are fixedly installed on the outer wall of the drying cylinder 601. Two support wheels 603 are attached to the bottom of each sleeve 602. A spiral plate 604 is arranged in an array on the inner wall of the drying cylinder 601. During the rotation of the drying cylinder 601, the spiral plate 604 drives the washed fly ash to move from right to left. A ring gear 605 is fixedly installed on the outer wall of the drying cylinder 601. The ring gear 605 is meshed with a driving gear 606. A motor 2 607 is fixedly installed at the center of the driving gear 606. The driving gear 606 is driven to rotate by the motor 2 607, which drives the ring gear 605 and the drying cylinder 601 to rotate; in this process, the support wheel 603 supports the sleeve 602 and the drying cylinder 601. A feed port 608 is provided on the circumferential surface of the right end of the drying cylinder 601, and a sleeve 609 is sleeved on the outer side of the right end of the drying cylinder 601. The sleeve 609 is connected to the bottom of the discharge pipe 502, and the sleeve 609 is communicated with the discharge pipe 502. An air inlet pipe 610 is fixedly installed on the right end of the sleeve 609. Therefore, during the rotation of the drying cylinder 601, the feed port 608 is intermittently communicated with the discharge pipe 502. The air inlet pipe 610 is used to pass dry hot air into the drying cylinder 601 to dry the washed fly ash inside the drying cylinder 601.

[0044] The method of using the water-washed fly ash solid-liquid separation system is as follows:

[0045] S1. The washed fly ash is put into the feeding hopper 101, and the washed fly ash falls on the top of the filter plate 202. The output end of the hydraulic cylinder 302 is intermittently extended and retracted to drive the installation frame 201 to move back and forth. The spring 306 is set to make the installation frame 201 vibrate continuously in the left and right directions, so that the filter plate 202 guides the washed fly ash while filtering it. The filtered washed fly ash passes through the discharge channel and enters the crushing box 401.

[0046] S2, one of the crushing rollers 403 is driven to rotate by the motor 404, and the other crushing roller 403 is driven to rotate in the opposite direction by the transmission gear 405, so that the two crushing rollers 403 crush the washed fly ash in the crushing box 401, and the crushed washed fly ash enters the inside of the feeding barrel 501 through the contraction part 402;

[0047] S3. When the transmission gear 405 rotates, it drives the pulley 1 505 to rotate, and cooperates with the transmission effect of the pulley 1 505, the transmission belt 507 and the pulley 2 506 to drive the rotating shaft 503 to rotate, and the washed fly ash in the feeding barrel 501 is transported to the right, and the washed fly ash in the feeding barrel 501 passes through the discharge pipe 502 and enters the sleeve 609;

[0048] S4. The driving gear 606 is driven to rotate by the motor 2 607, which drives the ring gear 605 and the drying drum 601 to rotate. The feed port 608 is intermittently connected with the discharge pipe 502, so that the crushed washed fly ash intermittently enters the drying drum 601. As the drying drum 601 rotates, the spiral plate 604 inside the drying drum 601 drives the washed fly ash to move to the left, and finally discharged from the left end of the drying drum 601. At the same time, hot air is introduced into the drying drum 601 through the air inlet pipe 610 to dry the washed fly ash.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-washed fly ash solid-liquid separation system, comprising a filter box (100), characterized in that: A filter assembly (200) is arranged inside the filter box (100), a reciprocating driving member (300) is fixedly mounted on the left end of the filter assembly (200), a crushing assembly (400) is fixedly mounted on the bottom of the filter box (100), a feeding assembly (500) is arranged at the bottom of the crushing assembly (400), and a drying assembly (600) is arranged at the bottom of the right end of the feeding assembly (500).

2. The water-washed fly ash solid-liquid separation system according to claim 1, characterized in that: A feeding hopper (101) is fixedly mounted on the upper side of the left half of the filter box (100); a partition plate (102) is fixedly mounted between the front and rear side walls of the right half of the filter box (100); a material discharge channel is formed between the partition plate (102) and the right side wall of the filter box (100); inclined plates 1 (103) are fixedly mounted on the front and rear side walls of the material discharge channel; inclined plates 2 (104) are fixedly mounted between the top of the partition plate (102) and the bottom of the left side wall of the filter box (100); and a drainage pipe (105) is provided at the bottom of the left side of the filter box (100).

3. The water-washed fly ash solid-liquid separation system according to claim 1, characterized in that: The filter assembly (200) comprises a mounting frame (201), a through slot is provided on the upper half of the right end of the mounting frame (201), a filter plate (202) is fixedly mounted on the inner wall of the mounting frame (201), the filter plate (202) is inclined and higher on the left than on the right, rollers (203) are provided on the front and rear sides of the mounting frame (201), support rails (204) are fixedly mounted on the front and rear side walls of the filter box (100), the rollers (203) roll on the top of the support rails (204), and inclined plates (205) are fixedly mounted on the left and right side walls of the mounting frame (201), the inclined plates (205) are inclined, and the ends of the two inclined plates (205) facing each other are higher than the ends of the two inclined plates (205) facing each other.

4. The water-washed fly ash solid-liquid separation system according to claim 1, characterized in that: The reciprocating drive member (300) comprises a support frame (301) fixedly mounted on the left end of the filter box (100); a hydraulic cylinder (302) is fixedly mounted on the support frame (301); the hydraulic cylinder (302) passes through the support frame (301); a sliding plate (303) is fixedly mounted on the right output end of the hydraulic cylinder (302); a fixed rod (304) is slidably connected to the sliding plate (303); a baffle plate (305) is fixedly mounted on the left end of the fixed rod (304); the baffle plate (305) is sleeved The fixing rod (304) is arranged outside the output end of the hydraulic cylinder (302), the right end of the fixing rod (304) is fixedly mounted on the filter assembly (200), the left and right sides of the sliding plate (303) are fixedly mounted with springs (306), the other end of the spring (306) away from the sliding plate (303) is attached to the filter assembly (200) or the baffle plate (305), and the left end of the filter box (100) is penetrated by an avoidance hole (307), the diameter of the avoidance hole (307) is larger than the diameters of the baffle plate (305) and the sliding plate (303).

5. The water-washed fly ash solid-liquid separation system according to claim 1, characterized in that: The pulverizing assembly (400) comprises a pulverizing box (401) welded to the bottom of the filter box (100); a contraction portion (402) is integrally formed at the bottom of the pulverizing box (401); two pulverizing rollers (403) are rotatably connected between the left and right side walls of the pulverizing box (401); a motor 1 (404) is fixedly mounted on the right end of one of the pulverizing rollers (403); transmission gears (405) are fixedly mounted on the left ends of the two pulverizing rollers (403); and the two transmission gears (405) are meshed with each other.

6. The water-washed fly ash solid-liquid separation system according to claim 5, characterized in that: The feeding assembly (500) comprises a feeding barrel (501) fixedly mounted at the bottom of the contraction portion (402), the two ends of the feeding barrel (501) are sealed, a discharge pipe (502) is arranged at the bottom of the right end of the feeding barrel (501), a rotating shaft (503) is arranged at the axis of the discharge pipe (502), the rotating shaft (503) penetrates and is rotatably connected to the feeding barrel (501), and a spiral blade (504) is fixedly mounted on the surface of the inner wall of the feeding barrel (501) on the rotating shaft (503); A pulley 1 (505) is fixedly installed at the center of one of the transmission gears (405), and a pulley 2 (506) is fixedly installed at the left end of the rotating shaft (503). The pulley 1 (505) and the pulley 2 (506) are connected by a transmission belt (507).

7. The water-washed fly ash solid-liquid separation system according to claim 1, characterized in that: The drying assembly (600) comprises a drying cylinder (601), two sleeves (602) are fixedly mounted on the outer wall of the drying cylinder (601), two supporting wheels (603) are fitted on the bottom of each sleeve (602), a spiral plate (604) is arranged in an array on the inner wall of the drying cylinder (601), a ring gear (605) is fixedly mounted on the outer wall of the drying cylinder (601), a driving gear (606) is meshed with the ring gear (605), a motor 2 (607) is fixedly mounted at the center of the driving gear (606), a feed port (608) is penetrated through the circumferential surface of the right end of the drying cylinder (601), a sleeve (609) is sleeved on the outer side of the right end of the drying cylinder (601), the sleeve (609) is connected to the bottom of the discharge pipe (502), and an air inlet pipe (610) is fixedly mounted on the right end of the sleeve (609).

8. The water-washed fly ash solid-liquid separation system according to any one of claims 1 to 7, characterized in that: The method for using the water-washed fly ash solid-liquid separation system has the following specific steps: S1, the washed fly ash is put into the feeding hopper (101), so that the washed fly ash falls on the top of the filter plate (202), and the output end of the hydraulic cylinder (302) is intermittently extended and retracted to drive the installation frame (201) to move back and forth left and right, and the installation frame (201) is continuously vibrated in the left and right directions by setting the spring (306), so that the filter plate (202) filters the washed fly ash and guides the washed fly ash at the same time, and the filtered washed fly ash passes through the discharge channel and enters the inside of the crushing box (401); S2, one of the crushing rollers (403) is driven to rotate by the motor 1 (404), and the other crushing roller (403) is driven to rotate in the opposite direction by the transmission gear (405), so that the two crushing rollers (403) crush the washed fly ash in the crushing box (401), and the crushed washed fly ash enters the interior of the feeding tube (501) through the contraction part (402); S3, when the transmission gear (405) rotates, it drives the pulley 1 (505) to rotate, and cooperates with the transmission action of the pulley 1 (505), the transmission belt (507) and the pulley 2 (506) to drive the rotating shaft (503) to rotate, so that the washed fly ash in the feeding barrel (501) is transported to the right, and the washed fly ash in the feeding barrel (501) passes through the discharge pipe (502) and enters the sleeve (609); S4, the driving gear (606) is driven to rotate by the second motor (607), thereby driving the ring gear (605) and the drying drum (601) to rotate, and the feed port (608) is intermittently connected to the discharge pipe (502), so that the crushed washed fly ash intermittently enters the interior of the drying drum (601), and as the drying drum (601) rotates, the spiral plate (604) inside the drying drum (601) drives the washed fly ash to move to the left, and finally discharged from the left end of the drying drum (601), and at the same time, hot air is introduced into the interior of the drying drum (601) through the air inlet pipe (610) to dry the washed fly ash.

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