Multi-stage gradient dynamic pressure control filter assembly of high-pressure belt sludge dryer

Abstract

This invention discloses a multi-stage gradient dynamic pressure-controlled filter press assembly for a high-pressure belt sludge dryer, relating to the field of sludge filter press. Specifically, it includes a support frame, with multiple belt rollers rotatably mounted on the outer wall of the support frame. Two filter press belts are mounted on the outer walls of the multiple belt rollers, with a feed hopper on one side of each of the two filter press belts. A pressure-expanding mechanism is provided on the inner wall of the multiple belt rollers, and a locking mechanism is provided on both sides of the belt rollers. This invention achieves continuous and stable pressure by setting multiple pressure strips on the belt rollers. During use, the top conical blocks on both sides of the multiple pressure strips push them out, thus expanding the outer wall of the belt rollers and increasing the outer wall area of ​​the belt rollers. This increases the pressure on the filter press belt and achieves a continuous and stable effect through self-locking. Multiple top support rollers and pushing rollers arranged in an arrangement mutually compress both sides of the filter press belt, directly and effectively compressing the filter press belt over a large area, facilitating more comprehensive filter press.

Description

Technical Field

[0001] This invention relates to the field of sludge filter press technology, and more specifically, to a multi-stage gradient dynamic pressure control filter press assembly for a high-pressure belt sludge dryer. Background Technology

[0002] A belt filter press, also known as a belt sludge dewatering machine, consists of a filter belt, roller press, filter belt tensioning system, filter belt alignment system, filter belt washing system, and filter belt drive system. Its working principle is as follows: Water-containing sludge is separated and pumped to a sludge mixing tank. Simultaneously, a coagulant is added for thorough mixing and reaction. The sludge then flows into the sludge distributor of the belt filter press, where it is evenly distributed onto the gravity dewatering zone. Under the bidirectional guidance of the sludge rake and the force of gravity, the sludge moves with the dewatering filter belt, rapidly removing its free water.

[0003] For example, utility model patent CN208448735U discloses a sludge drying filter press, which maximizes the sludge compression ratio and improves the sludge dewatering rate by moving the piston of an ultra-high pressure oil cylinder. Under normal temperature conditions, it realizes the mechanical automation of feeding, pressing, filtering, discharging and conveying steps, and ensures that the material is dewatered and dried under high oil pressure of more than 20MPa.

[0004] However, the aforementioned patent only provides the function of fixed-pressure filtration of sludge, lacking a structure that allows for free adjustment of the pressure of the filter belt. In other words, when it is necessary to pressurize the sludge through the filter belt, it is impossible to achieve the pressurization effect directly through a simple structure. At the same time, it is also impossible to directly increase the squeezing area of ​​the filter belt, so that the squeezing of the filter belt can only be applied to some positions, and a more comprehensive filtration effect cannot be achieved. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage gradient dynamic pressure-controlled filter assembly for a high-pressure belt sludge dryer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage gradient dynamic pressure-controlled filter assembly for a high-pressure belt sludge dryer, including a support frame, wherein multiple belt rollers are rotatably mounted on the outer wall of the support frame, and two filter belts are provided on the outer wall of the multiple belt rollers, and a feed hopper is provided on one side of the two filter belts;

[0007] The inner walls of multiple rollers are provided with a pressure spreading mechanism, and the two sides of the rollers are provided with a locking mechanism. The pressure spreading mechanism includes a motor fixedly installed on the outer wall of the support frame. The top of the motor is provided with a threaded rod, which is set in a vertical position. The outer wall of the threaded rod is threadedly connected to a push plate, which is set in a vertical position. Multiple toothed plates are fixedly installed on the outer wall of the push plate, and the multiple toothed plates are arranged parallel to each other.

[0008] In a preferred embodiment, a gear is provided on one side of each of the plurality of toothed plates. The plurality of gears are arranged in a vertical position. The outer walls of the plurality of gears are arranged corresponding to the toothed plates. The positions of the plurality of gears are arranged corresponding to the positions of the plurality of rollers. A threaded push rod is fixedly installed on the outer wall of the gear. The threaded push rod is threadedly connected to the inner wall of the support bracket.

[0009] In a preferred embodiment, a top cone block is fixedly installed on one side of the outer wall of the plurality of threaded push rods, the plurality of top cone blocks are arranged symmetrically in pairs, and the plurality of top cone blocks are arranged corresponding to each other.

[0010] In a preferred embodiment, the outer walls of the two top cone blocks are provided with a plurality of pads, the outer walls of the plurality of pads are arranged in a sloping shape, and a pressing strip is fixedly installed on the outer walls of the plurality of pads. The plurality of pressing strips are slidably installed on the inner wall of the belt roller and penetrate the outer wall of the belt roller.

[0011] In a preferred embodiment, the locking mechanism includes a top support strip fixedly installed on the bottom of a plurality of toothed plates. The plurality of top support strips are arranged in an L-shape. The top of the plurality of top support strips is provided with a base plate. The plurality of base plates are arranged in a horizontal state. A support spring is fixedly installed on the top of the plurality of base plates. A locking protrusion is fixedly installed on the top of the plurality of support springs. The plurality of locking protrusions are slidably installed on the outer wall of the support bracket. The plurality of locking protrusions and gears are arranged in an interleaved manner.

[0012] In a preferred embodiment, the outer walls of the plurality of filter belts are provided with a roller pressing mechanism. The roller pressing mechanism includes a toothed push block fixedly installed on the bottom outer wall of the pusher plate. The toothed push block is arranged in a vertical state. The top of the toothed push block is provided with a toothed plate. The toothed plate is rotatably installed on the outer wall of the support bracket. A rotating block is fixedly installed on one side of the toothed plate. Limiting springs are fixedly installed on the outer walls of both sides of the rotating block. Top protrusions are fixedly installed on the outer walls of the two limiting springs respectively. The two top protrusions are arranged symmetrically to each other.

[0013] In a preferred embodiment, the two sides of the turn block are provided with clamping plates, the outer walls of the two clamping plates are fixedly installed with belt plates, the two belt plates are slidably installed on the inner wall of the support bracket, and the outer walls of the belt plates are fixedly installed with clip springs, which are fixedly installed on the inner wall of the support bracket.

[0014] In a preferred embodiment, multiple push rollers are rotatably mounted on the outer walls of the two belt plates, and the multiple push rollers are arranged parallel to each other with the outer walls of the filter belt. A top support roller is provided on one side of the multiple push rollers, and the multiple top support rollers are rotatably mounted on the inner wall of the support frame.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. The present invention is achieved by setting up a pressure spreading mechanism and a locking mechanism in combination, and setting multiple pressure strips on the belt roller of the filter press. During use, the top cone blocks on both sides of the multiple pressure strips push them out, that is, the outer wall of the belt roller of the filter press expands, increasing the outer wall area of ​​the belt roller, thereby increasing the pressure of the filter press belt, and achieving a continuous and stable effect through self-locking.

[0017] 2. Then, with the assistance of the roller pressing mechanism, multiple top support rollers and push rollers arranged in an array squeeze each other to jointly compress the filter belt over a large area, which facilitates more comprehensive filtration of the filter belt. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a top view of the present invention.

[0020] Figure 3 This is a side view of the present invention.

[0021] Figure 4 This is a partial vertical sectional view of the diffuser mechanism in this invention.

[0022] Figure 5 This is a partial cross-sectional view of the locking mechanism in this invention.

[0023] Figure 6 This is a schematic diagram of the roller pressing mechanism in this invention.

[0024] Figure 7 This is a partial cross-sectional view of the roller pressing mechanism in this invention.

[0025] The attached diagram is labeled as follows: 1. Support bracket; 2. Belt roller; 3. Filter press belt; 4. Feed hopper; 5. Expansion mechanism; 51. Motor; 52. Threaded rod; 53. Pusher plate; 54. Toothed plate; 55. Gear; 56. Threaded push rod; 57. Top cone block; 58. Pad plate; 59. Pressing bar; 6. Locking mechanism; 61. Top support bar; 62. Base plate; 63. Support spring; 64. Locking protrusion; 7. Roller pressing mechanism; 71. Toothed push block; 72. Toothed plate; 73. Turning block; 74. Limiting spring; 75. Top protrusion plate; 76. Clamping plate; 77. Belt plate; 78. Locking spring; 79. Pusher roller; 710. Top support roller. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1: Addressing the lack of a structure capable of freely adjusting the pressure of the filter belt—that is, when pressurizing sludge via the filter belt is required, it is impossible to achieve the pressurization effect directly through a simple structure—the following technical solution is proposed to solve this problem:

[0028] Refer to the instruction manual appendix Figures 1-7 The multi-stage gradient dynamic pressure control filter assembly of the high-pressure belt sludge dryer, such as Figure 1 and Figure 2 As shown, it includes a support frame 1, a plurality of belt rollers 2 are rotatably mounted on the outer wall of the support frame 1, two filter belts 3 are provided on the outer wall of the plurality of belt rollers 2, a feed hopper 4 is provided on one side of the two filter belts 3, a pressure spreading mechanism 5 is provided on the inner wall of the plurality of belt rollers 2, and a locking mechanism 6 is provided on both sides of the belt rollers 2.

[0029] like Figure 3 and Figure 4 As shown, the diffuser mechanism 5 includes a motor 51 fixedly installed on the outer wall of the support bracket 1. The top of the motor 51 is provided with a threaded rod 52, which is set in a vertical position. A push plate 53 is threadedly connected to the outer wall of the threaded rod 52, which is set in a vertical position. Multiple toothed plates 54 are fixedly installed on the outer wall of the push plate 53, which are arranged in parallel with each other. The motor 51 drives the threaded rod 52 to rotate, causing the push plate 53 and the toothed plates 54 to slide synchronously upward on the outer wall of the support bracket 1.

[0030] like Figure 3 and Figure 4 As shown, a gear 55 is provided on one side of a plurality of toothed plates 54. The plurality of gears 55 are arranged vertically, and the outer walls of the plurality of gears 55 are arranged corresponding to the toothed plates 54. The positions of the plurality of gears 55 are arranged corresponding to the positions of the plurality of belt rollers 2. A threaded push rod 56 is fixedly installed on the outer wall of the gear 55. The threaded push rod 56 is threadedly connected to the inner wall of the support bracket 1. The toothed plates 54 move upward to push the gears 55 to rotate, and then the gears 55 drive the threaded push rod 56 to rotate synchronously.

[0031] like Figure 3 and Figure 4 As shown, a top cone block 57 is fixedly installed on one side of the outer wall of a plurality of threaded push rods 56. The plurality of top cone blocks 57 are arranged symmetrically in pairs and are arranged corresponding to each other. At this time, the threaded push rods 56 drive the top cone blocks 57 to move inward gradually.

[0032] like Figure 3 and Figure 4 As shown, the outer walls of the two top cone blocks 57 are provided with multiple pads 58. The outer walls of the multiple pads 58 are sloped. Pressing strips 59 are fixedly installed on the outer walls of the multiple pads 58. The multiple pressing strips 59 are slidably installed on the inner wall of the belt roller 2. The multiple pressing strips 59 penetrate the outer wall of the belt roller 2. The multiple pads 58 are pushed by the pressure of the outer wall of the top cone blocks 57. The multiple pads 58 gradually move outward through their slopes. That is, the multiple pads 58 drive the pressing strips 59 to expand outward, increasing the outer wall area of ​​the belt roller 2.

[0033] like Figure 5 As shown, the locking mechanism 6 includes a top support strip 61 fixedly installed at the bottom of multiple toothed plates 54. The multiple top support strips 61 are arranged in an L-shape, and a base plate 62 is provided at the top of the multiple top support strips 61. The multiple base plates 62 are arranged in a horizontal state, and a support spring 63 is fixedly installed at the top of the multiple base plates 62. A locking protrusion 64 is fixedly installed at the top of the multiple support springs 63. The multiple locking protrusions 64 are slidably installed on the outer wall of the support bracket 1. The multiple locking protrusions 64 and the gear 55 are arranged in an interleaved manner. After the multiple toothed plates 54 move upward to the position where they are disengaged from the gear 55, the multiple toothed plates 54 drive the top support strips 61 to move upward and press the base plate 62. Then, the upward movement of the base plate 62 drives the support springs 63 and the locking protrusions 64 to lock the outer wall of the gear 55, thereby restricting the gear 55 from rotating.

[0034] In specific implementation, the starting motor 51 drives the threaded rod 52 to rotate, causing the pusher plate 53 and the toothed plate 54 to slide synchronously upward on the outer wall of the support frame 1. The upward movement of the toothed plate 54 pushes the gear 55 to rotate, and then the gear 55 drives the threaded push rod 56 to rotate synchronously. At this time, the threaded push rod 56 drives the top cone block 57 to gradually move inward. The outer wall of the top cone block 57 squeezes and pushes multiple pads 58, and the multiple pads 58 gradually move outward through their inclined surfaces. That is, the multiple pads 58 drive the pressing strip 59 to expand outward, increasing the outer wall area of ​​the belt roller 2, thereby increasing the pulling pressure of the belt roller 2 on the filter belt.

[0035] After multiple toothed plates 54 continue to move upward to their final position, the toothed plates 54 disengage from the outer wall of the gear 55. The multiple toothed plates 54 drive the top support strip 61 to move upward and press against the bottom plate 62. The bottom plate 62 then moves upward, causing the support spring 63 and the locking protrusion 64 to lock against the outer wall of the gear 55, thus restricting the gear 55 from rotating and ensuring the stability of the outer expansion area of ​​the belt roller 2.

[0036] Example 2: To address the issue that the compression area of ​​the filter belt cannot be directly increased, limiting its application to certain areas and preventing the achievement of a more comprehensive filtration effect, the following technical solution is proposed:

[0037] like Figure 6 and Figure 7 As shown, the outer walls of multiple filter press belts 3 are provided with roller pressing mechanisms 7. The roller pressing mechanism 7 includes a toothed push block 71 fixedly installed on the bottom outer wall of the pusher plate 53. The toothed push block 71 is set in a vertical state. The top of the toothed push block 71 is provided with a toothed plate 72. The toothed plate 72 is rotatably installed on the outer wall of the support bracket 1. A rotating block 73 is fixedly installed on one side of the toothed plate 72. Limiting springs 74 are fixedly installed on the outer walls of both sides of the rotating block 73. Top protrusions 75 are fixedly installed on the outer walls of the two limiting springs 74 respectively. The two top protrusions 75 are symmetrically arranged. When the pusher plate 53 moves upward, it drives the toothed push block 71 to approach the toothed plate 72. Then, when the toothed plate 72 is pushed to rotate, it drives the rotating block 73 to rotate. The rotation of the rotating block 73 causes the top protrusions 75 driven by the limiting springs 74 to rotate synchronously.

[0038] like Figure 6 and Figure 7 As shown, the two sides of the shift block 73 are provided with clamping plates 76. The outer walls of the two clamping plates 76 are fixedly installed with belt plates 77. The two belt plates 77 are slidably installed on the inner wall of the support bracket 1. The outer walls of the belt plates 77 are fixedly installed with clip springs 78. The clip springs 78 are fixedly installed on the inner wall of the support bracket 1. When the top protrusion plate 75 driven by the shift block 73 approaches and presses the clamping plates 76 on both sides, the clamping plates 76 are forced to drive the belt plates 77 to slide and compress the clip springs 78.

[0039] like Figure 6 and Figure 7 As shown, multiple push rollers 79 are rotatably mounted on the outer walls of the two belt plates 77. The multiple push rollers 79 are arranged parallel to each other with the outer wall of the filter press belt 3. A top support roller 710 is provided on one side of the multiple push rollers 79. The multiple top support rollers 710 are rotatably mounted on the inner wall of the support frame 1. The belt plates 77 on both sides synchronously drive the multiple push rollers 79 to approach and squeeze the outer wall of the filter press belt 3. At this time, the multiple top support rollers 710 and the multiple push rollers 79 jointly squeeze both sides of the filter press belt 3.

[0040] In practical implementation, when the pusher plate 53 moves upward, it drives the toothed pusher block 71 to approach the toothed plate 72. Then, when the toothed plate 72 is pushed to rotate, it drives the rotating block 73 to rotate. The rotation of the rotating block 73 causes the top protrusion plate 75 driven by the limit spring 74 to rotate synchronously. The top protrusion plate 75 driven by the rotating block 73 approaches and squeezes the clamping plates 76 on both sides. The clamping plates 76 are then forced to slide the belt plate 77 and compress the clamping spring 78. The belt plates 77 on both sides synchronously drive multiple push rollers 79 to approach the outer wall of the filter belt 3. At this time, the multiple top support rollers 710 and multiple push rollers 79 jointly squeeze both sides of the filter belt 3, directly and effectively squeezing the filter belt over a large area, which facilitates a more comprehensive filtration effect of the filter belt 3.

[0041] In summary, the filter press belt is constructed by installing multiple extrusion strips on its rollers. During operation, these strips are pushed out by the top cones on both sides, causing the outer wall of the rollers to expand directly. This increases the tension of the rollers on the filter press belt. Furthermore, multiple top support rollers and push rollers arranged in an array mutually compress both sides of the filter press belt, effectively and directly compressing the belt over a large area, thus facilitating more comprehensive filtration.

[0042] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0043] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0044] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage gradient dynamic pressure-controlled filter press assembly for a high-pressure belt sludge dryer, comprising a support frame (1), wherein multiple belt rollers (2) are rotatably mounted on the outer wall of the support frame (1), and two filter press belts (3) are provided on the outer wall of the multiple belt rollers (2), and a feed hopper (4) is provided on one side of the two filter press belts (3), characterized in that: Multiple rollers (2) are provided with a pressure spreading mechanism (5) on their inner walls. The rollers (2) are provided with a locking mechanism (6) on both sides. The pressure spreading mechanism (5) includes a motor (51) fixedly installed on the outer wall of the support bracket (1). The top of the motor (51) is provided with a threaded rod (52). The threaded rod (52) is set in a vertical position. The outer wall of the threaded rod (52) is threadedly connected to a push plate (53). The push plate (53) is set in a vertical position. Multiple toothed plates (54) are fixedly installed on the outer wall of the push plate (53). The multiple toothed plates (54) are arranged parallel to each other. A gear (55) is provided on one side of each of the multiple toothed plates (54). The multiple gears (55) are arranged vertically. The outer walls of the multiple gears (55) are arranged corresponding to the toothed plates (54). The positions of the multiple gears (55) are arranged corresponding to the positions of the multiple belt rollers (2). A threaded push rod (56) is fixedly installed on the outer wall of the gear (55). The threaded push rod (56) is threadedly connected to the inner wall of the support bracket (1). A top cone block (57) is fixedly installed on one side of the outer wall of the multiple threaded push rods (56). The multiple top cone blocks (57) are arranged symmetrically in pairs. The multiple top cone blocks (57) are arranged corresponding to the multiple threaded push rods (56). The outer walls of the two top cone blocks (57) are provided with multiple pads (58), the outer walls of the multiple pads (58) are arranged in a sloping shape, and the outer walls of the multiple pads (58) are fixedly installed with pressing strips (59). The multiple pressing strips (59) are slidably installed on the inner wall of the belt roller (2), and the multiple pressing strips (59) penetrate the outer wall of the belt roller (2).

2. The multi-stage gradient dynamic pressure-controlled filter press assembly of the high-pressure belt sludge dryer according to claim 1, characterized in that: The locking mechanism (6) includes a top support strip (61) fixedly installed at the bottom of multiple toothed plates (54). The multiple top support strips (61) are arranged in an L-shape. The top of the multiple top support strips (61) is provided with a base plate (62). The multiple base plates (62) are arranged in a horizontal state. The top of the multiple base plates (62) is fixedly installed with a support spring (63). The top of the multiple support springs (63) is fixedly installed with a locking protrusion (64). The multiple locking protrusions (64) are slidably installed on the outer wall of the support bracket (1). The multiple locking protrusions (64) and the gears (55) are arranged in an interleaved manner.

3. The multi-stage gradient dynamic pressure-controlled filter press assembly of the high-pressure belt sludge dryer according to claim 1, characterized in that: The outer walls of the multiple filter press belts (3) are provided with roller pressing mechanisms (7). The roller pressing mechanism (7) includes a toothed push block (71) fixedly installed on the bottom outer wall of the pusher plate (53). The toothed push block (71) is set in a vertical state. The top of the toothed push block (71) is provided with a toothed plate (72). The toothed plate (72) is rotatably installed on the outer wall of the support bracket (1). A rotating block (73) is fixedly installed on one side of the toothed plate (72). Limiting springs (74) are fixedly installed on the outer walls of both sides of the rotating block (73). Top protrusions (75) are fixedly installed on the outer walls of the two limiting springs (74) respectively. The two top protrusions (75) are arranged symmetrically to each other.

4. The multi-stage gradient dynamic pressure-controlled filter press assembly of the high-pressure belt sludge dryer according to claim 3, characterized in that: The two sides of the turn block (73) are provided with clamping plates (76), and the outer walls of the two clamping plates (76) are fixedly installed with belt plates (77). The two belt plates (77) are slidably installed on the inner wall of the support bracket (1). The outer walls of the belt plates (77) are fixedly installed with clip springs (78), and the clip springs (78) are fixedly installed on the inner wall of the support bracket (1).

5. The multi-stage gradient dynamic pressure-controlled filter press assembly of the high-pressure belt sludge dryer according to claim 4, characterized in that: Multiple push rollers (79) are rotatably mounted on the outer walls of the two belt plates (77). The multiple push rollers (79) are arranged parallel to each other with the outer wall of the filter press belt (3). A top support roller (710) is provided on one side of the multiple push rollers (79). The multiple top support rollers (710) are rotatably mounted on the inner wall of the support frame (1).

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