A screw press for axially adjusting the gap of filter cartridge

Abstract

The present invention relates to a screw press for axially adjusting the gap of a filter cartridge, comprising a base, a frame and a discharge box, a filter cartridge formed by splicing filter strips connected in the frame, a plurality of gap adjustment structures connected in the frame, the gap adjustment structure comprising a first and a second adjusting ring, the filter strip cooperates with the first and the second adjusting ring to respectively set a filter strip outer cone surface and a filter strip adjustment seat, push plates are arranged at both ends of the filter cartridge, gap adjustment bolts are arranged at the outer sides of the push plates, a spiral shaft with spiral sheets is rotatably connected in the filter cartridge, one end of the spiral shaft extends to the outside of the discharge box and is connected to a motor, a feed hopper is connected on the frame, a feed pipe at the lower end of the feed hopper passes through a feed port provided on the filter cartridge and extends into the filter cartridge, a discharge port connected to the discharge box is arranged on the filter cartridge, a back pressure mechanism is connected on the spiral shaft, a discharge port and a water drain port are respectively arranged on the discharge box and the lower end of the frame, the screw press for axially adjusting the gap of the filter cartridge has an adjustable filtration gap, is widely used, and ensures the dehydration quality, so that the material is drier and the discharged water is clearer.

Description

Technical Field

[0001] The invention relates to a screw press, in particular to a screw press for axially adjusting the gap of a filter cartridge. Background Art

[0002] The screw press squeezes out the moisture in the material, thereby reducing the moisture content of the material. The drainage holes of the traditional screw press are fixed and cannot be adjusted for different materials. The application area is narrow, and the pressure that the screw press can withstand is small. The moisture content of the material is still high after dehydration by screw pressing. Summary of the invention

[0003] In view of the above shortcomings, the applicant has conducted research and improvement, and provided a screw press for axially adjusting the gap of the filter cartridge.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A screw press for axially adjusting the gap of a filter cartridge comprises a base, a frame is connected to the base, one side of the frame is connected to a discharge box, a filter cartridge is connected inside the frame, the filter cartridge is composed of a plurality of filter strips, a plurality of gap adjustment structures are connected inside the frame, the gap adjustment structure comprises a first adjustment ring with an inner conical hole and a second adjustment ring with an outer conical surface, the filter strip cooperates with the first adjustment ring to open an outer conical surface of the filter strip, the filter strip cooperates with the second adjustment ring to connect a filter strip adjustment seat, the filter strip adjustment seat cooperates with the outer conical surface of the second adjustment ring to set an adjustment seat inner conical surface, push plates are arranged at both ends of the filter cartridge, and the outer side of the push plates are provided with a filter cartridge pusher and a gap adjustment bolt for axial movement of two push plates, a spiral shaft rotates inside the filter cartridge, the spiral shaft is connected to the spiral sheet, one end of the spiral shaft passes through the frame and the discharge box and extends outside the discharge box, and is connected to the motor on the base, the frame is connected to the feed hopper, the feed pipe at the lower end of the feed hopper passes through the feed port opened on the filter cartridge and extends into the filter cartridge, and the width of the feed port is greater than the diameter of the feed pipe, the filter cartridge is provided with a discharge port connected to the discharge box at one end close to the discharge box, the spiral shaft is located in the discharge box and is connected to a back pressure mechanism that closes the discharge port, a discharge port is opened at the lower end of the discharge box, and the lower end of the frame is connected to a drain port.

[0006] As a further improvement of the above technical solution:

[0007] The filter strip comprises an outer arc seat and an inner arc seat, the side walls on both sides of the inner arc seat are inclined inwards so that the gap between the filter strips is smaller inside and larger outside, the outer conical surface of the filter strip is opened on the outside of the outer arc seat, and the outer side of the outer arc seat is fixedly connected to the filter strip adjustment seat by bolts.

[0008] An adjusting ring guide strip is arranged on the outer conical surface of the second adjusting ring corresponding to the filter strip adjusting seat on the filter strip, and a guiding groove is arranged on the filter strip adjusting seat in cooperation with the adjusting ring guide strip.

[0009] The discharge port is connected to the discharge box via a discharge connecting pipe, and one end of the discharge connecting pipe passes through the filter cartridge.

[0010] The back pressure mechanism includes a mounting sleeve connected to the spiral shaft, the mounting sleeve is connected to a back pressure adjusting bolt, the tail end of the back pressure adjusting bolt presses against one side of a spring support plate sleeved on the spiral shaft, the other end of the spring support plate supports the spring, the other end of the spring is connected to a back pressure plate sleeved on the spiral shaft, and the back pressure plate closes the discharge port of the filter cartridge.

[0011] The diameter of the screw shaft increases continuously from the feed hopper position to the discharge port position.

[0012] The spacing between the spiral plates connected to the spiral shaft decreases continuously from the position of the feed hopper to the position of the discharge port.

[0013] The motor is connected to the base, the motor is connected to the synchronous wheel, and the synchronous wheel is connected to the synchronous gear of the spiral shaft through a synchronous belt.

[0014] The lower end of the frame is connected to a drainage bucket, a drainage outlet is arranged at the lower end of the drainage bucket, and the lower end of the drainage bucket is connected to a base and communicated with a water tank connected to the base.

[0015] The beneficial effects of the present invention are as follows: the screw press for axially adjusting the gap of the filter cartridge can axially adjust the position of the filter cartridge by rotating the gap adjusting bolt, and the gap between the filter strips can be adjusted by cooperating with the filter strips and the gap adjusting structure, so as to meet the dehydration treatment of different materials and has a wide range of applications. In addition, the pressure of the back pressure plate can be adjusted by the adjustable back pressure mechanism, so that the material can be opened only when it reaches the set pressure, thereby preventing the discharge of thin materials that do not meet the water content, ensuring the dehydration quality, making the material drier, and the discharged water clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a screw press for axially adjusting the gap of a filter cartridge provided by the present invention.

[0017] Figure 2 A cross-sectional view of a screw press frame for axially adjusting the filter cartridge gap provided by the present invention.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 A cross-sectional view of a screw press filter cartridge for axially adjusting the filter cartridge gap provided by the present invention.

[0020] Figure 5 A side view of a screw press filter strip for axially adjusting the filter cartridge gap provided by the present invention.

[0021] In the figure: 1, base; 2, frame; 21, feed hopper; 211, feed pipe; 22, drain outlet; 23, drain hopper; 3, discharge box; 31, discharge outlet; 32, discharge connecting pipe; 4, filter cartridge; 41, filter strip; 411, outer cone surface of filter strip; 412, filter strip adjustment seat; 4121, inner cone surface of adjustment seat; 413, outer arc seat; 414, inner arc seat; 42, push plate; 43, gap adjustment Bolt; 44, feed port; 45, discharge port; 5, gap adjustment structure; 51, first adjustment ring; 52, second adjustment ring; 521, adjustment ring guide strip; 6, motor; 61, synchronous wheel; 62, synchronous belt; 7, back pressure mechanism; 71, mounting sleeve; 72, back pressure adjustment bolt; 73, spring support plate; 74, spring; 75, back pressure plate; 8, spiral shaft; 81, spiral sheet; 9, water tank. DETAILED DESCRIPTION

[0022] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 5As shown, the screw press for axially adjusting the gap of the filter cartridge of this embodiment includes a base 1, a frame 2 is connected to the base 1, a discharge box 3 is connected to one side of the frame 2, a filter cartridge 4 is connected inside the frame 2, the filter cartridge 4 is spliced ​​by a plurality of filter strips 41, the filter strip 41 includes an outer arc seat 413 and an inner arc seat 414, the side walls on both sides of the inner arc seat 414 are inclined inwardly, so that the gap between the filter strips 41 is smaller inside and larger outside; a plurality of gap adjustment structures 5 are connected inside the frame 2, the gap adjustment structure 5 includes a first adjustment ring 51 with an inner conical hole and a second adjustment ring 52 with an outer conical surface, the outer side of the outer arc seat 413 of the filter strip 41 cooperates with the first adjustment ring 51 to open a filter strip outer conical surface 411, and the outer arc seat 413 of the filter strip 41 is provided with a filter strip outer conical surface 411. The outer side 41 of 413 cooperates with the second adjusting ring 52 to connect the filter strip adjusting seat 412 through bolts. The filter strip adjusting seat 412 cooperates with the outer conical surface of the second adjusting ring 52 to set the adjusting seat inner conical surface 4121. The outer conical surface of the second adjusting ring 52 corresponds to the filter strip 41 and the filter strip adjusting seat 412 is provided with an adjusting ring guide strip 521. The adjusting seat inner conical surface 4121 of the filter strip adjusting seat 412 cooperates with the adjusting ring guide strip 521 to form a guide groove; push plates 42 are set at both ends of the filter cartridge 4, and the outer sides of the push plates 42 are provided with gap adjusting bolts 43 for pushing the filter cartridge 4 and the two push plates 42 to axially move; the filter cartridge 4 is rotated and connected with the spiral shaft 8, the spiral shaft 8 is connected with the spiral sheet 81, and one end of the spiral shaft 8 is connected to the shaft of the frame 2 The support is connected, and the other end passes through the frame 2 and the discharge box 3 and extends outside the discharge box 3, and the end is connected to the synchronous gear, and the synchronous gear is connected to the synchronous wheel 61 through the synchronous belt 62, and the synchronous wheel 61 is connected to the motor 6 on the base 1. The frame 2 is connected to the feed hopper 21, and the feed pipe 211 at the lower end of the feed hopper 21 passes through the feed port 44 provided on the filter cartridge 4 and extends into the filter cartridge 4, and the width of the feed port 44 is greater than the diameter of the feed pipe 211, which is convenient for axial adjustment of the filter cartridge 4. A discharge port 45 is set at one end of the filter cartridge 4 close to the discharge box 3, and the discharge port 45 is connected to the discharge box 3 through a discharge connecting pipe 32. One end of the discharge connecting pipe 32 passes through the filter cartridge 4, and the other end extends into the discharge box 3. The swivel 8 is located in the discharge box 3 and is connected to a back pressure mechanism 7 that closes the discharge connection pipe 32. The back pressure mechanism 7 includes a mounting sleeve 71 connected to the spiral shaft 8, and a back pressure adjusting bolt 72 is connected to the mounting sleeve 71. The tail end of the back pressure adjusting bolt 72 is pressed against one side of a spring support plate 73 sleeved on the spiral shaft 8. The other end of the spring support plate 73 supports a spring 74. The other end of the spring 74 is connected to a back pressure plate 75 sleeved on the spiral shaft 8. The back pressure plate 75 closes the discharge connection pipe 32. A discharge port 31 is provided at the lower end of the discharge box 3, and a drainage bucket 23 is connected to the lower end of the frame 2. A drainage port 22 is provided at the lower end of the drainage bucket 23, and the lower end of the drainage bucket 23 is connected to the base 1 and communicates with a water tank 9 connected to the base 1.

[0024] The diameter of the screw shaft 8 increases continuously from the position of the feed hopper 21 to the position of the discharge port 45, and the spacing between the spiral pieces 81 connected to the screw shaft 8 decreases continuously from the position of the feed hopper 21 to the position of the discharge port 45, making the extrusion space smaller and smaller, so that the moisture in the material is gradually squeezed out.

[0025] When the screw press for adjusting the axial gap of the filter cartridge of the present embodiment is used, the filter strip adjustment seat 412 is first connected to the filter strip by bolts, and then the filter strip 41 is assembled into the frame 2 to form the filter cartridge 4, and the assembly of the entire screw press is completed. After the screw press is assembled, the gap size of the filter cartridge 4 and the pressure of the back pressure plate 75 are calculated according to the moisture content of the material to be processed and the moisture content after dehydration, and then the gap is adjusted first, and the filter cartridge 4 and the push plate 42 are driven to move axially together by rotating the gap adjustment bolt 43, and the first adjustment ring 5 is used to adjust the gap. The inner conical surface of the filter strip 1 cooperates with the outer conical surface 411 of the filter strip opened on the filter cartridge 4, and the outer conical surface of the second adjusting ring 52 cooperates with the inner conical surface 4121 of the adjusting seat of the filter strip adjusting seat 412, so that the gap of the filter cartridge 4 can be adjusted. When the filter cartridge 4 moves toward the discharge box 3, the filter strip 41 of the filter cartridge 4 contracts inwardly to reduce the gap of the filter cartridge 4. When the filter cartridge 4 moves toward the feed hopper 21, the filter strip 41 of the filter cartridge 4 expands outwardly to expand the gap of the filter cartridge 4. In addition, since the second adjusting ring 52 and the filter strip adjusting seat 412 are respectively provided with the adjusting ring guide strips, the filter strip guide strips are provided on the filter cartridge 4. 521 and the guide groove can make the gap adjustment uniform, ensure that the gap of the filter cartridge 4 is large and small, and after the gap adjustment of the filter cartridge 4 is completed; then the back pressure adjustment is performed, and the back pressure adjustment bolt 72 is turned to adjust the position of the spring support plate 73, thereby adjusting the distance between the spring support plate 73 and the back pressure plate 75, and the spring 74 can be compressed or released, thereby adjusting the pressure of the back pressure plate 75; after the adjustment is completed, the screw press can be used, and the material is fed from the feed hopper 21 and enters the filter cartridge 4 through the feed pipe 211, and then the motor 6 drives the screw shaft 8 and its The spiral pieces 81 on the upper part rotate together to convey the material toward the discharge port 45, and perform a screw pressing operation on the material to squeeze out the moisture in the material. The moisture passes through the gaps between the filter strips 41 and enters the frame 2, and is drained through the drainage bucket 23 connected to the lower end of the frame 2. Finally, the water enters the water tank 9 from the drainage port 22 for collection, and the material is conveyed to the discharge port 45 until the pressure of the material breaks through the pressure of the back pressure plate 75. The material can break through the back pressure plate 75 and enter the discharge box 3, and finally is discharged and collected from the discharge port 31 of the discharge box 3.

[0026] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. The present invention may be modified in any form without violating the basic structure of the present invention.

Claims

1. A screw press for axially adjusting the gap of the filter cartridge. Features: The invention comprises a base (1), the base (1) is connected to a frame (2), one side of the frame (2) is connected to a discharge box (3), a filter cartridge (4) is arranged inside the frame (2), the filter cartridge (4) is formed by splicing a plurality of filter strips (41), the frame (2) is connected to a plurality of gap adjustment structures (5), the gap adjustment structures (5) comprise a first adjustment ring (51) with an inner conical hole and a second adjustment ring (52) with an outer conical surface, the filter strip (41) cooperates with the first adjustment ring (51) to form a filter strip outer conical surface ( 411), the filter strip (41) cooperates with the second adjustment ring (52) to connect the filter strip adjustment seat (412), the filter strip adjustment seat (412) cooperates with the outer conical surface of the second adjustment ring (52) to set the adjustment seat inner conical surface (4121), the outer conical surface of the second adjustment ring (52) corresponds to the filter strip (41) on the filter strip adjustment seat (412) to set the adjustment ring guide strip (521), the filter strip adjustment seat (412) cooperates with the adjustment ring guide strip (521) to open a guide groove, and push plates are set at both ends of the filter cartridge (4). (42), the outer side of the push plate (42) is provided with a gap adjustment bolt (43) for pushing the filter cartridge (4) and the two push plates (42) to move axially, the filter cartridge (4) is internally connected to a spiral shaft (8) for rotation, the spiral shaft (8) is connected to a spiral sheet (81), one end of the spiral shaft (8) passes through the frame (2) and the discharge box (3) to extend outside the discharge box (3), and is connected to the motor (6) on the base (1), the frame (2) is connected to a feed hopper (21), and a feed hopper at the lower end of the feed hopper (21) is connected to the feed hopper (21). The tube (211) passes through a feed port (44) provided on the filter cartridge (4) and extends into the filter cartridge (4), and the width of the feed port (44) is greater than the diameter of the feed tube (211). An end of the filter cartridge (4) close to the discharge box (3) is provided with a discharge port (45) connected to the discharge box (3). The spiral shaft (8) is located in the discharge box (3) and is connected to a back pressure mechanism (7) that closes the discharge port (45). A discharge port (31) is provided at the lower end of the discharge box (3), and the lower end of the frame (2) is connected to a drain port (22).

2. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The filter strip (41) comprises an outer arc seat (413) and an inner arc seat (414); the side walls on both sides of the inner arc seat (414) are inclined inwardly so that the gap between the filter strips (41) is smaller inside and larger outside; the filter strip outer conical surface (411) is provided on the outside of the outer arc seat (413); and the outer side of the outer arc seat (413) is fixedly connected to the filter strip adjustment seat (412) by means of bolts.

3. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The discharge port (45) is connected to the discharge box (3) via a discharge connecting pipe (32), and one end of the discharge connecting pipe (32) passes into the filter cartridge (4).

4. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The back pressure mechanism (7) comprises a mounting sleeve (71) connected to the spiral shaft (8), a back pressure adjusting bolt (72) being connected to the mounting sleeve (71), a rear end of the back pressure adjusting bolt (72) being pressed against one side of a spring support plate (73) sleeved on the spiral shaft (8), the other end of the spring support plate (73) supporting a spring (74), the other end of the spring (74) being connected to a back pressure plate (75) sleeved on the spiral shaft (8), and the back pressure plate (75) closing a discharge port (45) of the filter cartridge (4).

5. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The diameter of the screw shaft (8) increases continuously from the position of the feed hopper (21) to the position of the discharge port (45).

6. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The spacing between the spiral blades (81) connected to the spiral shaft (8) continuously decreases from the position of the feed hopper (21) to the position of the discharge port (45).

7. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The motor (6) is connected to the base (1), the motor (6) is connected to a synchronous wheel (61), and the synchronous wheel (61) is connected to a synchronous gear of the screw shaft (8) via a synchronous belt (62).

8. The screw press for axially adjusting the gap of the filter cartridge according to claim 1, Features: The lower end of the frame (2) is connected to a drainage bucket (23), a drainage outlet (22) is provided at the lower end of the drainage bucket (23), and the lower end of the drainage bucket (23) is connected to the base (1) and communicates with a water tank (9) connected to the base (1).

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