A wet crushing device for recycled polyester

Abstract

The present invention belongs to the technical field of recycled polyester crushing, and discloses a recycled polyester wet crushing device, including a support frame, a discharge box, a filter box and a water tank, a filter barrel is installed below the water tank, a centrifugal pump is installed inside the filter barrel, and also includes: a crushing mechanism, including two crushing rollers and two second pipes, a screen cylinder is installed outside the crushing roller, and spiral blades are symmetrically installed on the inner wall of the screen cylinder; a return mechanism, including two second feed pipes symmetrically arranged on the outer wall of the support frame, one end of the second feed pipe is connected to the screen cylinder, and the end of the second feed pipe away from the screen cylinder is connected to the centrifugal pump; an adjustment mechanism, including two groups of first eccentric circles and second eccentric circles staggered with each other, and the first eccentric circle and the second eccentric circle are both abutted with extrusion rods on the opposite surfaces. The present invention solves the problem of uneven particle size after crushing recycled polyester by existing devices.

Description

Technical Field

[0001] The invention relates to the technical field of recycled polyester crushing, in particular to a recycled polyester wet crushing device. Background Art

[0002] Recycled polyester refers to reusable polyester materials obtained by recycling discarded polyester products or production waste and reprocessing them.

[0003] When recycled polyester is crushed, wet crushing is used to facilitate temperature control, reduce static electricity and dust generation, and improve production efficiency and product quality. In this process, the recycled polyester and water are mixed and enter the crusher to crush the recycled polyester into particles of uniform size.

[0004] The Chinese patent disclosed "A wet pulverizer for recycled polyester special material for chemical fiber" with application number 202221414003.6 includes a base, a pulverizing mechanism and auxiliary components. A box body and a box door are arranged on the top of the base. A hole is opened on the top of the box body, and a feed port is hingedly installed in the hole. The auxiliary components include a filtering mechanism and a spraying mechanism, and the filtering mechanism is located below the spraying mechanism.

[0005] When the device crushes the recycled polyester, the crushing mechanism only crushes the recycled polyester once. When large particles exist after crushing, the large particles of recycled polyester cannot be returned to the crushing mechanism for secondary crushing, which will cause the size of the recycled polyester particles to be uneven. When bagging, the weight of each bag will be inconsistent, which is inconvenient for storage and transportation. In addition, in subsequent processing, the large particles of recycled polyester have poor fluidity and are not easy to form, which affects the product processing performance and production process. Summary of the invention

[0006] The purpose of the present invention is to provide a wet crushing device for recycled polyester, which solves the problem of uneven particle size after crushing the recycled polyester by the existing device.

[0007] To achieve the above object, the present invention provides the following technical solution: a recycled polyester wet crushing device, comprising a support frame and a discharge box located above the support frame, wherein a filter box and a water tank are sequentially installed on the inner wall of the support frame from top to bottom, a filter barrel is installed below the water tank, and a centrifugal pump is installed inside the filter barrel, and further comprising:

[0008] The crushing mechanism is arranged below the discharge box, and includes two crushing rollers and two second pipes. A screen drum is installed outside the crushing roller, and spiral blades are symmetrically installed on the inner wall of the screen drum. When the centrifugal pump draws water from the water tank through the second pipe and mixes it with the recycled polyester particles in the discharge box and then discharges it above the crushing roller, the crushing roller crushes the recycled polyester, the screen drum screens the crushed recycled polyester, and the spiral blades push the large particles of recycled polyester to move.

[0009] The return mechanism is arranged below the screen drum, and includes two second feed pipes symmetrically arranged on the outer wall of the support frame, one end of the second feed pipe is connected to the screen drum; the end of the second feed pipe away from the screen drum is connected to the centrifugal pump, and when the large particles of recycled polyester move into the second feed pipe, the centrifugal pump will drive the large particles of recycled polyester to be discharged to the top of the crushing roller for further crushing;

[0010] The adjusting mechanism is arranged on both sides of the screen drum, and includes two groups of first eccentric circles and second eccentric circles arranged alternately with each other, and the opposite surfaces of the first eccentric circles and the second eccentric circles are both abutted with squeezing rods; when the crushing roller crushes, the first eccentric circle and the second eccentric circle are driven to rotate, and the second pipe is squeezed in turn through the squeezing rods, thereby completing the adjustment of the water spraying pressure of the second pipe.

[0011] Preferably, the crushing mechanism also includes a double-shaft motor, which is installed on the lower end surface of the discharge box, and the output shafts of the double-shaft motors are both installed with a first round rod, a first gear is installed on the outer wall of the first round rod, and a gear ring is meshed on the lower end surface of the first gear, and the gear ring is fixedly installed on the outer wall of the screen drum, and the screen drum is rotatably installed on the inner wall of the support frame.

[0012] Preferably, a first pulley is installed on the side of one of the first round rods away from the dual-axis motor, through the support frame, the outer wall of the first pulley is sleeved with a belt, the inner wall of the belt away from the first pulley is sleeved with a second pulley, the outer wall of the belt abuts against a tensioner, and the tensioner is slidably installed on the outer wall of the support frame.

[0013] Preferably, the outer wall of the crushing roller abuts against a second baffle, and both ends of the second baffle are installed on a support frame. One side of the crushing roller passes through the support frame and is respectively installed with a second gear and a third gear, and the second gear and the third gear are meshed with each other, and one of the crushing rollers passes through the support frame away from the third gear and is fixedly connected to the second pulley.

[0014] Preferably, a first discharge pipe is symmetrically installed on the lower end surface of the discharge box, and the first discharge pipe is connected to a first pipeline at one end away from the discharge box, and one side of the first pipeline passes through the support frame and extends into the screen cylinder.

[0015] Preferably, the second pipeline is a plastic hose, and both ends of the second pipeline are respectively connected to the centrifugal pump and the first pipeline.

[0016] Preferably, the adjustment mechanism further comprises two support plates, the two support plates are symmetrically mounted on the outer wall of the first pipe, a slider is slidably mounted on the inner wall of the support plate, and the slider is fixedly connected to the extrusion rod.

[0017] Preferably, a second round rod and a third round rod are fixedly installed on the side of the first eccentric circle facing the support frame, the second round rod is fixedly connected to the second pulley on the side away from the first eccentric circle, and the third round rod is fixedly connected to the crushing roller on the side away from the first eccentric circle.

[0018] Preferably, a fourth round rod and a fifth round rod are fixedly mounted on the side of the second eccentric circle facing the support frame, and the fourth round rod and the fifth round rod are fixedly connected to the second gear and the third gear on the side away from the second eccentric circle.

[0019] Preferably, a control panel is installed on the outer wall of the support frame, and a first baffle is symmetrically installed on the outer wall of the support frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with a crushing mechanism and a return mechanism. The crushed recycled polyester particles will fall into the screen drum. At this time, the spiral blades will drive the crushed recycled polyester particles to move to both sides. Qualified recycled polyester will fall into the filter box. Recycled polyester with relatively large particles will be driven by the spiral blades to continue to move in the screen drum, and finally fall from the second discharge pipe and enter the filter barrel. Since the centrifugal pump is always working at this time, it will drive the recycled polyester particles falling in the second discharge pipe to pass through the second pipe and the first pipe and be crushed by the crushing roller again, thereby ensuring uniform particle size;

[0022] 2. The present invention is provided with an adjustment mechanism. The first eccentric circle and the second eccentric circle will squeeze the squeezing rod in turn. The squeezing rod drives the slider to slide on the support plate to squeeze the second pipe. At this time, the diameter of the second pipe becomes smaller and the water passing through becomes less. At the same time, the second eccentric circle does not squeeze the squeezing rod. Although the diameter of the second pipe on the other side remains unchanged, the flowing water increases and the water pressure also increases, which will impact the large particles of recycled polyester in the first discharge pipe and drive the large particles of recycled polyester in the first discharge pipe to spray farther, so that the large particles of recycled polyester can be evenly discharged above the crushing roller for crushing, which can prevent accumulation and thus accelerate the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is another perspective schematic diagram of the present invention;

[0025] Figure 3 It is a cross-sectional view of the present invention;

[0026] Figure 4 This is a schematic diagram of the present invention without the first baffle;

[0027] Figure 5 for Figure 4 Schematic diagram from another perspective;

[0028] Figure 6 for Figure 5 Schematic diagram from another perspective;

[0029] Figure 7 for Figure 6 Sectional view;

[0030] Figure 8 for Figure 6 A magnified schematic diagram of center A.

[0031] In the figure: 1, discharge box; 2, first baffle; 3, filter box; 4, water tank; 5, control panel; 6, support frame; 100, crushing mechanism; 200, return mechanism; 300, adjustment mechanism; 101, first gear; 102, first round rod; 103, double-axis motor; 104, first pulley; 105, belt; 106, second pulley; 107, first discharge pipe; 108, tension wheel; 109, first pipeline; 110, gear ring; 111, sieve Cylinder; 112, second gear; 113, third gear; 114, second baffle; 115, crushing roller; 116, spiral blade; 201, second feed pipe; 202, filter barrel; 203, centrifugal pump; 204, second pipeline; 301, second round rod; 302, support plate; 303, first eccentric circle; 304, third round rod; 305, second eccentric circle; 306, fourth round rod; 307, slider; 308, extrusion rod; 309, fifth round rod. DETAILED DESCRIPTION

[0032] See also Figures 1 to 8 The present invention provides a technical solution: a recycled polyester wet crushing device, comprising a support frame 6 and a discharge box 1 located above the support frame 6, wherein a filter box 3 and a water tank 4 are sequentially installed on the inner wall of the support frame 6 from top to bottom, a filter barrel 202 is installed below the water tank 4, and a centrifugal pump 203 is installed inside the filter barrel 202, and further comprising:

[0033] The crushing mechanism 100 is arranged below the discharge box 1, and includes two crushing rollers 115 and two second pipes 204. The crushing rollers 115 are externally mounted with screen drums 111, and the inner wall of the screen drums 111 is symmetrically mounted with spiral blades 116. When the centrifugal pump 203 extracts water from the water tank 4 through the second pipes 204, mixes the water with the recycled polyester particles in the discharge box 1, and then discharges the water to the top of the crushing rollers 115, the crushing rollers 115 crush the recycled polyester, the screen drums 111 screen the crushed recycled polyester, and the spiral blades 116 push the large particles of recycled polyester to move.

[0034] The return mechanism 200 is arranged below the screen drum 111, and includes two second feed pipes 201 symmetrically arranged on the outer wall of the support frame 6, one end of the second feed pipe 201 is connected to the screen drum 111; the end of the second feed pipe 201 away from the screen drum 111 is connected to the centrifugal pump 203, when the large particles of recycled polyester move into the second feed pipe 201, the centrifugal pump 203 will drive the large particles of recycled polyester to be discharged to the top of the crushing roller 115 for crushing again;

[0035] The adjusting mechanism 300 is arranged on both sides of the screen drum 111, and includes two groups of first eccentric circles 303 and second eccentric circles 305 which are staggered with each other. The opposite surfaces of the first eccentric circles 303 and the second eccentric circles 305 are both abutted with squeezing rods 308. When the crushing roller 115 crushes, the first eccentric circle 303 and the second eccentric circle 305 are driven to rotate, and the second pipe 204 is squeezed by the squeezing rods 308 in turn, thereby completing the adjustment of the water spraying pressure of the second pipe 204.

[0036] Further, such as Figure 4 As shown, the crushing mechanism 100 also includes a double-shaft motor 103, which is mounted on the lower end surface of the discharge box 1, and the output shafts of the double-shaft motor 103 are both mounted with a first round rod 102, and the outer wall of the first round rod 102 is mounted with a first gear 101, and the lower end surface of the first gear 101 is meshed with a gear ring 110, and the gear ring 110 is fixedly mounted on the outer wall of the screen drum 111, and the screen drum 111 is rotatably mounted on the inner wall of the support frame 6;

[0037] The double-axis motor 103 drives the first round rod 102 to rotate, the first round rod 102 drives the first gear 101 to rotate, and the first gear 101 drives the screen drum 111 to rotate on the support frame 6 through the gear ring 110;

[0038] Further, such as Figure 4 and Figure 5 As shown, one of the first round rods 102 is provided with a first pulley 104 on the side away from the dual-axis motor 103, and penetrates the support frame 6. A belt 105 is sleeved on the outer wall of the first pulley 104. A second pulley 106 is sleeved on the inner wall of the belt 105 away from the first pulley 104. A tensioner 108 is abutted against the outer wall of the belt 105. The tensioner 108 is slidably mounted on the outer wall of the support frame 6.

[0039] The first pulley 104 drives the second pulley 106 to rotate through the belt 105, and the tensioner 108 is used to adjust the tightness of the belt 105;

[0040] Further, such as Figure 6 and Figure 7As shown, the outer wall of the crushing roller 115 abuts against a second baffle 114, and both ends of the second baffle 114 are mounted on the support frame 6. One side of the crushing roller 115 passes through the support frame 6 and is respectively mounted with a second gear 112 and a third gear 113, and the second gear 112 and the third gear 113 are meshed with each other, and one side of the crushing roller 115 away from the third gear 113 passes through the support frame 6 and is fixedly connected to the second pulley 106;

[0041] The second baffle 114 can prevent large particles of recycled polyester from splashing;

[0042] The second belt pulley 106 drives one of the crushing rollers 115 to rotate, the crushing roller 115 drives the third gear 113 to rotate, and the third gear 113 drives the other crushing roller 115 to rotate through the second gear 112. At this time, the two crushing rollers 115 rotate in opposite directions;

[0043] Further, such as Figure 3 As shown, a first discharge pipe 107 is symmetrically installed on the lower end surface of the discharge box 1, and the first discharge pipe 107 is connected to a first pipe 109 at one end away from the discharge box 1, and one side of the first pipe 109 penetrates the support frame 6 and extends into the screen drum 111;

[0044] The recycled polyester in the first discharge pipe 107 enters the screen drum 111 through the first pipe 109;

[0045] Further, such as Figure 3 As shown, the second pipeline 204 is a plastic hose, and both ends of the second pipeline 204 are connected to the centrifugal pump 203 and the first pipeline 109 respectively;

[0046] The centrifugal pump 203 extracts water from the filter barrel 202 through the second pipe 204 and enters the first pipe 109;

[0047] Further, such as Figure 5 and Figure 8 As shown, the adjustment mechanism 300 further includes two support plates 302, which are symmetrically mounted on the outer wall of the first pipe 109, and a slider 307 is slidably mounted on the inner wall of the support plate 302, and the slider 307 is fixedly connected to the extrusion rod 308;

[0048] The extrusion rod 308 drives the slider 307 to slide on the support plate 302;

[0049] Further, such as Figure 4 and Figure 5As shown, the second round rod 301 and the third round rod 304 are respectively fixedly installed on the side of the first eccentric circle 303 facing the support frame 6, the second round rod 301 is fixedly connected to the second pulley 106 on the side away from the first eccentric circle 303, and the third round rod 304 is fixedly connected to the crushing roller 115 on the side away from the first eccentric circle 303;

[0050] The crushing roller 115 and the second pulley 106 drive the first eccentric circle 303 to rotate through the third round rod 304 and the second round rod 301 respectively;

[0051] Further, such as Figure 6 and Figure 8 As shown, the fourth round rod 306 and the fifth round rod 309 are respectively fixedly installed on the side of the second eccentric circle 305 facing the support frame 6, and the fourth round rod 306 and the fifth round rod 309 are respectively fixedly connected to the second gear 112 and the third gear 113 on the side away from the second eccentric circle 305;

[0052] The second gear 112 and the third gear 113 drive the second eccentric circle 305 to rotate through the fourth round rod 306 and the fifth round rod 309 respectively;

[0053] Further, such as Figure 1 As shown, a control panel 5 is installed on the outer wall of the support frame 6, and a first baffle 2 is symmetrically installed on the outer wall of the support frame 6;

[0054] The control panel 5 sets relevant parameters, and the first baffle 2 prevents water from splashing.

[0055] Working principle: Step 1: After the external power supply is connected, the control panel 5 is used to control the dual-axis motor 103 to rotate. The dual-axis motor 103 drives the first pulley 104 and the first gear 101 to rotate through the first round rod 102. The first pulley 104 drives the second pulley 106 to rotate through the belt 105. The second pulley 106 drives one of the crushing rollers 115 to rotate. The crushing roller 115 drives the third gear 113 to rotate. The third gear 113 drives the other crushing roller 115 to rotate through the second gear 112. At this time, the two crushing rollers 115 rotate in opposite directions.

[0056] At the same time, the first gear 101 drives the screen drum 111 to rotate through the gear ring 110, and the screen drum 111 drives the internal spiral blades 116 to rotate;

[0057] Step 2: Control the centrifugal pump 203 to work through the control panel 5. The centrifugal pump 203 extracts water from the filter barrel 202 through the second pipe 204 and enters the first pipe 109. Then, large particles of recycled polyester are placed in the discharge box 1. At this time, the large particles of recycled polyester in the discharge box 1 will fall into the first discharge pipe 107. The water in the second pipe 204 enters the first pipe 109 and takes away the large particles of recycled polyester in the first discharge pipe 107 and enters the screen drum 111. The recycled polyester particles are crushed by the crushing roller 115. The crushed recycled polyester particles fall into the screen drum 111. 1, at this time, the spiral blade 116 will drive the crushed recycled polyester particles to move to both sides, and the qualified recycled polyester will fall into the filter box 3. The recycled polyester with relatively large particles will be driven by the spiral blade 116 to continue to move in the screen drum 111, and finally fall from the second discharge pipe 201 and enter the filter barrel 202. Since the centrifugal pump 203 is always working at this time, it will drive the recycled polyester particles falling from the second discharge pipe 201 to pass through the second pipe 204 and the first pipe 109 and be crushed by the crushing roller 115 again, and so on, until they fall into the filter box 3;

[0058] Step 3: When the crushing roller 115 and the second pulley 106 rotate, the first eccentric circle 303 and the second eccentric circle 305 will be driven to rotate through the second round rod 301, the third round rod 304, the fourth round rod 306 and the fifth round rod 309 respectively. The first eccentric circle 303 and the second eccentric circle 305 will squeeze the squeezing rod 308 in turn. Here, the squeezing rod 308 of the first eccentric circle 303 is taken as an example. The squeezing rod 308 drives the slider 307 to slide on the support plate 302 to squeeze the second pipe 204. At this time, the second pipe The diameter of 204 becomes smaller, and less water passes through it. At the same time, the second eccentric circle 305 does not squeeze the squeezing rod 308. Although the diameter of the second pipe 204 on the other side remains unchanged, the flowing water increases and the water pressure also increases, which will impact the large particles of recycled polyester in the first discharge pipe 107, and drive the large particles of recycled polyester in the first discharge pipe 107 to be ejected farther, so that the large particles of recycled polyester can be evenly discharged above the crushing roller 115 for crushing, which can prevent accumulation, thereby accelerating the crushing efficiency, and repeat the above steps until the crushing is completed.

[0059] 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 recycled polyester wet crushing device, comprising a support frame (6) and a discharge box (1) located above the support frame (6), wherein a filter box (3) and a water tank (4) are sequentially installed on the inner wall of the support frame (6) from top to bottom, a filter barrel (202) is installed below the water tank (4), and a centrifugal pump (203) is installed inside the filter barrel (202), characterized in that: Also includes: The crushing mechanism (100) is arranged below the discharge box (1), and comprises two crushing rollers (115) and two second pipes (204). A screen drum (111) is installed outside the crushing rollers (115), and spiral blades (116) are symmetrically installed on the inner wall of the screen drum (111). When the centrifugal pump (203) draws water from the water tank (4) through the second pipe (204), mixes the water with the recycled polyester particles in the discharge box (1) and then discharges the water to the top of the crushing rollers (115), the crushing rollers (115) crush the recycled polyester, the screen drum (111) screens the crushed recycled polyester, and the spiral blades (116) push the large particles of recycled polyester to move. The return mechanism (200) is arranged below the screen drum (111), and comprises two second feed pipes (201) symmetrically arranged on the outer wall of the support frame (6), one end of the second feed pipe (201) is connected to the screen drum (111), and the end of the second feed pipe (201) away from the screen drum (111) is connected to the centrifugal pump (203); when the large particles of recycled polyester move into the second feed pipe (201), the centrifugal pump (203) will drive the large particles of recycled polyester to be discharged to the top of the crushing roller (115) for crushing again; The regulating mechanism (300) is arranged on both sides of the screen drum (111), and comprises two groups of first eccentric circles (303) and second eccentric circles (305) arranged in an interlaced manner, and the first eccentric circles (303) and the second eccentric circles (305) are both in contact with the opposite surfaces thereof with squeezing rods (308); when the crushing roller (115) is crushing, the first eccentric circles (303) and the second eccentric circles (305) are driven to rotate, and the squeezing rods (308) are used to squeeze the second pipe (204) in turn, thereby completing the regulation of the water spraying pressure of the second pipe (204); The crushing mechanism (100) further comprises a double-shaft motor (103), the double-shaft motor (103) being mounted on the lower end surface of the discharge box (1), the output shafts of the double-shaft motor (103) being mounted with a first round rod (102), the outer wall of the first round rod (102) being mounted with a first gear (101), the lower end surface of the first gear (101) being meshed with a gear ring (110), the gear ring (110) being fixedly mounted on the outer wall of a screen drum (111), and the screen drum (111) being rotatably mounted on the inner wall of a support frame (6); A first pulley (104) is installed on one side of the first round rod (102) away from the dual-axis motor (103), passing through the support frame (6); a belt (105) is sleeved on the outer wall of the first pulley (104); a second pulley (106) is sleeved on the inner wall of the belt (105) away from the first pulley (104); a tensioner (108) is abutted against the outer wall of the belt (105); and the tensioner (108) is slidably installed on the outer wall of the support frame (6); The outer wall of the crushing roller (115) is abutted against a second baffle (114), and both ends of the second baffle (114) are mounted on a support frame (6). One side of the crushing roller (115) passes through the support frame (6) and is respectively mounted with a second gear (112) and a third gear (113), and the second gear (112) and the third gear (113) are meshed with each other. One side of the crushing roller (115) away from the third gear (113) passes through the support frame (6) and is fixedly connected to the second pulley (106); A second round rod (301) and a third round rod (304) are respectively fixedly mounted on the side of the first eccentric circle (303) facing the support frame (6); the second round rod (301) is fixedly connected to the second pulley (106) on the side away from the first eccentric circle (303); and the third round rod (304) is fixedly connected to the crushing roller (115) on the side away from the first eccentric circle (303); A fourth round rod (306) and a fifth round rod (309) are respectively fixedly mounted on the side of the second eccentric circle (305) facing the support frame (6); the fourth round rod (306) and the fifth round rod (309) are respectively fixedly connected to the second gear (112) and the third gear (113) on the side away from the second eccentric circle (305).

2. A regenerated polyester wet crushing device according to claim 1, characterized in that: A first discharge pipe (107) is symmetrically mounted on the lower end surface of the discharge box (1); one end of the first discharge pipe (107) away from the discharge box (1) is connected to a first pipe (109); one side of the first pipe (109) penetrates the support frame (6) and extends into the screen drum (111).

3. A regenerated polyester wet crushing device according to claim 2, characterized in that: The second pipeline (204) is a plastic hose, and two ends of the second pipeline (204) are respectively connected to the centrifugal pump (203) and the first pipeline (109).

4. A regenerated polyester wet crushing device according to claim 2, characterized in that: The adjustment mechanism (300) further comprises two support plates (302), the two support plates (302) being symmetrically mounted on the outer wall of the first pipe (109), a slider (307) being slidably mounted on the inner wall of the support plate (302), and the slider (307) being fixedly connected to the extrusion rod (308).

5. The wet crushing device for recycled polyester according to claim 1, characterized in that: A control panel (5) is mounted on the outer wall of the support frame (6), and a first baffle (2) is symmetrically mounted on the outer wall of the support frame (6).

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