Non-woven fabric and powder recovery device of crawler-type filter

Abstract

The utility model relates to the field of solid-liquid separation devices, in particular to a crawler-type filter non-woven fabric and powder recovery device which structurally comprises a box body, a crawler-type transmission device arranged on the box body and a liquid distribution device fixed above the crawler-type transmission device, the crawler-type transmission device is used for driving the filter belt to move rightwards through the crawler-type transmission device, and the filter belt is located below the liquid material distribution device, laid on the crawler-type transmission device and moved from left to right. When the crawler-type transmission device drives the filter belt to move, the linkage mechanism drives the air expansion shaft to synchronously wind the filter belt, and meanwhile, before winding, the scraping plate can effectively scrape impurities intercepted by the filter belt and collect the impurities through the filter material trolley; therefore, the non-woven fabric filter belt and the filter residues are separated and recycled, resource waste is reduced, and the working efficiency of the filter is improved.

Description

Technical Field

[0001] The utility model relates to the field of solid-liquid separation devices, in particular to a non-woven fabric and powder recovery device for a crawler filter press. Background Art

[0002] Industrial sewage mainly contains impurities, oil stains and water. Industrial sewage needs to be treated and meet environmental protection regulations before it can be discharged. Otherwise, it will affect the environment, not meet the national environmental protection requirements, and waste resources, which is not conducive to the recycling of water resources. At present, the commonly used industrial sewage separation equipment in industry is to separate impurities, oil stains and water in the sewage, treat the sewage through the industrial sewage separation equipment, and recycle water resources. The crawler filter press belongs to a special-function industrial sewage separation equipment.

[0003] In the patent document with the publication number: CN201969403U, a walking belt filter press is disclosed, which includes a liquid tank arranged below the frame; a moving chain arranged above the frame, the moving chain includes a power device, a transmission device, a crawler wheel set, and a crawler wound around the crawler wheel set. The crawler includes a filtering section and a draining section. Taking the moving direction of the crawler as a reference, the draining section is arranged behind the filtering section; a filter paper belt drawn from a rotating shaft is laid on the crawler. Oblique baffle edges are arranged on the frame corresponding to both sides of the filtering section of the crawler. The oblique baffle edges and the crawler wheels at both ends of the filtering section form a box-shaped space for accommodating the filter paper belt. Flat baffle edges sufficient to make the filter paper belt unfold into a flat shape are arranged on the frame corresponding to both sides of the draining section of the crawler; a liquid collecting hopper with evenly distributed holes, the liquid collecting hopper is arranged above the filtering section of the crawler; and a side-mounted liquid material pipe for pouring the liquid material to be filtered into the liquid collecting hopper from one side of the frame.

[0004] However, it still has the following deficiencies in the actual application process: In the working process of the existing crawler filter press, non-woven fabric filter materials are often used as the filtering medium. At present, the filter presses on the market directly collect the non-woven fabric filter belt and filter residues together in the receiving trolley, and it is impossible to separate and recycle the non-woven fabric filter belt and filter residues, resulting in waste of non-woven fabric and inconvenient treatment.

[0005] Therefore, this case aims to provide a non-woven fabric and powder recovery device for a crawler filter press. The device has a simple structure, can effectively recycle the used non-woven fabric and simultaneously achieve efficient recovery of powder, reduce waste of resources, and improve the working efficiency of the filter press. Summary of the Utility Model

[0006] The utility model provides a non-woven fabric and powder recovery device for a crawler filter press, which can effectively solve the above problems.

[0007] The utility model is implemented as follows:

[0008] A non-woven fabric and powder recovery device for a crawler filter, the structure of which includes: a box body, a crawler transmission device arranged on the box body, a liquid material distribution device fixed above the crawler transmission device, a filter belt located below the liquid material distribution device and laid on the crawler transmission device and moving from left to right. A fixed bracket is provided on the right side of the box body. An unpowered roller for guiding the filter belt to move downward is provided on the fixed bracket. An air shaft for winding the filter belt is also provided on the fixed bracket. The air shaft is arranged below the unpowered roller. The air shaft is connected to the driving wheel of the crawler transmission device through a linkage mechanism. A control mechanism for controlling the opening and closing of the key strip of the air shaft is provided at one end of the air shaft. A scraper for scraping the filter material on the filter belt is also provided on the fixed bracket, and a filter material trolley for collecting the filter material is provided below the scraper.

[0009] As a further improvement, the control mechanism includes an air cylinder coaxially connected to the air shaft. An air nozzle communicating with the air inlet pipe of the air shaft is provided on the air cylinder. A piston sliding along the length direction of the air cylinder is provided in the air cylinder. A pumping rod is fixed to the rear end of the piston. An air chamber is formed between the front end of the inner cylinder of the air cylinder and the piston. A one-way air inlet mechanism communicating with the air chamber is provided at the front end of the air cylinder. A pressure relief valve communicating with the air chamber is also provided on the side wall of the air cylinder. A reciprocating mechanism for driving the pumping rod to move back and forth is provided at the tail of the air cylinder.

[0010] As a further improvement, the reciprocating mechanism includes an annular cylinder coaxially arranged outside the pumping rod. One end of the annular cylinder is rotatably installed on the side of the air cylinder away from the air shaft. A number of guide rails extending along the length direction of the air cylinder are evenly distributed at equal intervals on the surface of the pumping rod. A number of sliding rods cooperating with the guide rails are provided on the inner wall of the air cylinder. A positioning shaft is provided at one end of the side wall of the pumping rod away from the piston. A reciprocating chute cooperating with the positioning shaft is provided on the inner wall of the annular cylinder. A rotating handle is also provided at the end of the annular cylinder connected to the air cylinder.

[0011] As a further improvement, a support seat for fixing the air shaft is provided on the fixed bracket. Positioning blocks are connected to both ends of the air shaft through bearings. A receiving groove for placing the positioning blocks is opened on the support seat. The positioning blocks are movably connected to the receiving groove.

[0012] As a further improvement, the linkage mechanism includes a first gear coaxially connected to the end of the air shaft away from the control mechanism, a second gear provided on the support seat near the first gear and meshing with the first gear, a third gear provided on the other side of the support seat and connected to the second gear, and the third gear is connected to the driving wheel of the crawler transmission device through a belt.

[0013] As a further improvement, an air inlet hole communicating with the air chamber is provided at the front end of the air cylinder. The one-way air inlet mechanism includes an air inlet cover provided at the air inlet hole. The air inlet cover is provided with an air inlet passage communicating with the air inlet hole. A steel ball is provided in the air inlet passage of the air inlet cover, and a spring is provided at the rear end of the steel ball.

[0014] As a further improvement, a sealing strip is provided on the side wall of the piston.

[0015] As a further improvement, a pressure gauge communicating with the air chamber is also provided on the air cylinder.

[0016] The beneficial effects of the present utility model are as follows:

[0017] With the air expandable shaft and the scraper provided in the present utility model, when the impurities intercepted on the surface of the filter belt reach a certain degree, the filter belt is driven to move to the right by the crawler transmission device. The right end of the filter belt is wound around the unpowered roller and the air expandable shaft. When the crawler transmission device drives the filter belt to move, the linkage mechanism drives the air expandable shaft to synchronously wind up the filter belt. At the same time, before winding up, the scraper can effectively scrape off the impurities intercepted by the filter belt and collect them through the filter material trolley, thereby realizing the separation and recovery of the non-woven filter belt and the filter residue, reducing resource waste and improving the working efficiency of the filter. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of a non-woven fabric and powder recovery device of a crawler filter provided by the present utility model;

[0020] Figure 2 is a schematic cross-sectional structural diagram of a crawler transmission device, an unpowered roller, and an air expandable shaft provided by the present utility model;

[0021] Figure 3 is a schematic structural diagram of an unpowered roller, an air expandable shaft, a control mechanism, a scraper, and a filter material trolley provided by the present utility model;

[0022] Figure 4 is a schematic structural diagram of an air expandable shaft and a control mechanism provided by the present utility model;

[0023] Figure 5 is a schematic structural diagram of the control mechanism provided by the present utility model;

[0024] Figure 6It is a schematic structural diagram of the cross-section of the air pump provided by the present utility model;

[0025] Figure 7 It is a schematic three-dimensional assembly structural diagram of the control mechanism provided by the present utility model;

[0026] Figure 8 It is a schematic structural diagram of the piston and the reciprocating mechanism provided by the present utility model;

[0027] Figure 9 It is a schematic structural diagram of the one-way air intake mechanism provided by the present utility model;

[0028] Figure 10 It is a schematic structural diagram of the air shaft and the support seat provided by the present utility model.

[0029] In the figure: box body - 1, crawler transmission device - 2, liquid material distribution device - 3, filter belt - 4, fixed bracket - 5, unpowered roller - 6, air shaft - 7, control mechanism - 8, scraper - 9, filter material trolley - 10, air pump - 81, air nozzle - 82, piston - 83, air pumping rod - 84, one-way air intake mechanism - 85, pressure relief valve - 86, reciprocating mechanism - 87, annular cylinder - 871, guide rail - 841, sliding rod - 811, positioning shaft - 842, reciprocating chute - 872, rotating handle - 873, support seat - 51, positioning block - 71, accommodating groove - 52, first gear - 111, second gear - 112, third gear - 113, belt - 114, air intake hole - 812, air intake cover - 851, steel ball - 852, spring - 853, sealing strip - 831, pressure gauge - 12. Specific embodiments

[0030] To implement the present utility model, all of them fall within the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0031] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating any relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined. For a clearer understanding of the purpose, technical solutions, and advantages of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present utility model.

[0032] During the operation of existing crawler filters, non-woven filter materials are often used as filter media. Currently, on the market, the filter directly collects the non-woven filter belt and filter residue together in the receiving trolley, unable to separate and recycle the non-woven filter belt and filter residue, resulting in waste of non-woven fabric and inconvenient handling. To solve the above technical problems, the following technical solutions are proposed in this case:

[0033] Refer to Figures 1 to 10 As shown, a non-woven fabric and powder recovery device for a crawler filter includes: a box body 1, a crawler transmission device 2 provided on the box body 1, a liquid material distribution device 3 fixed above the crawler transmission device 2, a filter belt 4 laid on the crawler transmission device 2 and moving from left to right below the liquid material distribution device 3. A fixed bracket 5 is provided on the right side of the box body 1. An unpowered roller 6 for guiding the filter belt 4 to move downward is provided on the fixed bracket 5. An air shaft 7 for winding the filter belt 4 is also provided on the fixed bracket 5. The air shaft 7 is arranged below the unpowered roller 6. The air shaft 7 is connected to the driving wheel of the crawler transmission device 2 through a linkage mechanism. A control mechanism 8 for controlling the opening and closing of the key strip of the air shaft 7 is provided at one end of the air shaft 7. A scraper 9 for scraping the filter material on the filter belt 4 is also provided on the fixed bracket 5. A filter material trolley 10 for collecting the filter material is provided below the scraper 9;

[0034] Therefore, during use, the sewage evenly flows above the filter belt 4 through the liquid material distribution device 3, and the impurities in the sewage are separated into solid and liquid by the filter belt 4. The liquid flows downward into the box body 1 through the gaps of the filter belt 4, while the solid powder remains on the surface of the filter belt 4. After the impurities intercepted on the surface of the filter belt 4 reach a certain level, the filter belt 4 is driven by the crawler transmission device 2 to move to the right. The right end of the filter belt 4 winds around the unpowered roller 6 and the air shaft 7. When the crawler transmission device 2 drives the filter belt 4 to move, the linkage mechanism drives the air shaft 7 to synchronously wind up the filter belt 4. At the same time, before winding up, the scraper 9 can effectively scrape off the impurities intercepted by the filter belt 4 and collect them through the filter material trolley 10, thus realizing the separation and recovery of the non-woven filter belt and the filter residue, reducing resource waste, and improving the working efficiency of the filter machine.

[0035] Specifically, the control mechanism 8 includes an air cylinder 81 coaxially connected to the air shaft 7. An air nozzle 82 communicating with the air inlet pipe of the air shaft 7 is provided on the air cylinder 81. A piston 83 sliding along the length direction of the air cylinder 81 is provided inside the air cylinder 81. A pumping rod 84 is fixed to the rear end of the piston 83. An air chamber is formed between the front end of the inner cylinder of the air cylinder 81 and the piston 83. A one-way air intake mechanism 85 communicating with the air chamber is provided at the front end of the air cylinder 81. A pressure relief valve 86 communicating with the air chamber is further provided on the side wall of the air cylinder 81. A reciprocating mechanism 87 for driving the pumping rod 84 to move back and forth is provided at the tail of the air cylinder 81.

[0036] Therefore, during use, the winding cylinder for recycling the filter belt 4 is sleeved on the air shaft 7. Then, the reciprocating mechanism 87 drives the pumping rod 84 and the piston 83 to reciprocate back and forth along the air cylinder 81. When the piston 83 moves backward, gas is drawn into the air chamber through the one-way air intake mechanism 85. When the piston moves forward, the air in the air chamber is injected into the air inlet pipe of the air shaft 7 through the air nozzle 82, thereby prompting the key of the air shaft 7 to protrude and fix the winding cylinder. After the winding is completed, the air is released through the pressure relief valve 86, prompting the key of the air shaft 7 to contract and reset, facilitating the removal of the wound filter belt 4 from the air shaft 7, and the operation is simple and convenient.

[0037] Among them, the air inlet pipe of the air shaft 7 is arranged on the rotating shaft of the air shaft 7, which is a structure known to those skilled in the art. Its structure and principle can be known by those skilled in the art through technical manuals, and will not be elaborated here.

[0038] Further, the reciprocating mechanism 87 includes an annular cylinder 871 coaxially arranged outside the air injection rod 84. One end of the annular cylinder 871 is rotatably installed on the side of the air cylinder 81 away from the air expansion shaft 7. A plurality of guide rails 841 extending along the length direction of the air cylinder 81 are evenly distributed at equal intervals on the surface of the air injection rod 84. A plurality of sliding rods 811 cooperating with the guide rails 841 are arranged on the inner wall of the air cylinder 81. A positioning shaft 842 is arranged at one end of the side wall of the air injection rod 84 away from the piston 83. A reciprocating chute 872 cooperating with the positioning shaft 842 is arranged on the inner wall of the annular cylinder 871. A rotary handle 873 is further arranged at the end of the annular cylinder 871 connected to the air cylinder 81.

[0039] During use, when the air expansion shaft 7 needs to be inflated, the annular cylinder 871 is driven to rotate by the rotary handle 873. Since the reciprocating chute 872 in the annular cylinder 871 is buckled with the positioning shaft 842, and the guide rail 841 cooperates with the sliding rod 811, as the annular cylinder 871 rotates, the air injection rod 84 is promoted to move back and forth along the length direction of the air cylinder 81, thereby realizing the inflation of the air expansion shaft 7.

[0040] To facilitate the quick installation and disassembly of the air expansion shaft 7, a support seat 51 for fixing the air expansion shaft 7 is arranged on the fixed bracket 5. The two ends of the air expansion shaft 7 are connected with positioning blocks 71 through bearings. A receiving groove 52 for placing the positioning blocks 71 is formed on the support seat 51. The positioning blocks 71 are movably connected with the receiving groove 52. Therefore, when the filtering belt 4 is completely wound up, the air expansion shaft 7 is directly lifted upward, and the positioning blocks 71 slide upward along the receiving groove 52, so that the filtering belt 4 wound up on the air expansion shaft 7 can be quickly removed, and the operation is convenient.

[0041] It should be noted that the projected area of the positioning block 71 on the side facing the air expansion shaft 7 is smaller than the side area of the air expansion shaft 7 to prevent the winding cylinder from not being sleeved on the air expansion shaft 7.

[0042] And, the linkage mechanism includes a first gear 111 coaxially connected at one end of the air expansion shaft 7 away from the control mechanism 8, a second gear 112 arranged on the support seat 51 near the first gear 111 and meshing with the first gear 111, a third gear 113 arranged on the other side of the support seat 51 and connected with the second gear 112, and the third gear 113 is connected with the driving wheel of the crawler transmission device 2 through a belt 114. Therefore, during use, the driving wheel of the crawler transmission device 2 drives the third gear 113 to rotate through the belt 114. At the same time, the third gear 113 drives the first gear 111 on the air expansion shaft 7 to rotate synchronously through the second gear 112, so that when the crawler transmission device 2 drives the filtering belt 4 to move to the right, the air expansion shaft 7 is synchronously wound up.

[0043] Further, an air inlet hole 812 communicating with the air chamber is provided at the front end of the air cylinder 81. The one-way air inlet mechanism 85 includes an air inlet cover 851 provided at the air inlet hole 812. The air inlet cover 851 is provided with an air inlet passage communicating with the air inlet hole 812. A steel ball 852 is provided in the air inlet passage of the air inlet cover 851, and a spring 853 is provided at the rear end of the steel ball 852. Therefore, during use, when the piston 83 moves backward, the external air pressure pushes the steel ball 852 to compress the spring 853. At this time, the external air enters the air chamber through the air inlet passage of the air inlet cover 851 and the air inlet hole 812. When the piston 83 is pushed forward, the spring 853 pushes the steel ball 852 to block the air inlet passage, prompting the gas to enter the air inlet pipe of the air expansion shaft 7 through the air nozzle 82 for inflation.

[0044] In order to improve the sealing performance in the air chamber, a sealing strip 831 is provided on the side wall of the piston 83.

[0045] Moreover, a pressure gauge 12 communicating with the air chamber is further provided on the air cylinder 81. Thus, the internal pressure condition of the air expansion shaft 7 can be observed through the pressure gauge 12. When the pressure reaches the appropriate range, stop inflating to prevent damage to the air expansion shaft 7 due to over-inflation.

[0046] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A crawler filter nonwoven fabric and powder recovery device, the structure of which includes: A box body (1), a crawler-type transmission device (2) arranged on the box body (1), a liquid material distribution device (3) fixed above the crawler-type transmission device (2), and a filter belt (4) located below the liquid material distribution device (3) and laid on the crawler-type transmission device (2) and moving from left to right, characterized in that: a fixed bracket (5) is provided on the right side of the box body (1), a non-powered roller (6) is provided on the fixed bracket (5) for guiding the filter belt (4) to move downward, and a filter belt (4) is also provided on the fixed bracket (5). An inflatable shaft (7) for winding up the filter belt (4), the inflatable shaft (7) being arranged below the unpowered roller (6), the inflatable shaft (7) being connected to the driving wheel of the crawler transmission device (2) via a linkage mechanism, a control mechanism (8) for controlling the key bar of the inflatable shaft (7) to open and close is arranged at one end, the fixed bracket (5) is also provided with a scraper (9) for scraping off filter material on the filter belt (4), and a filter material trolley (10) for collecting filter material is arranged below the scraper (9).

2. A crawler filter nonwoven fabric and powder recovery device as claimed in claim 1, characterized in that: The control mechanism (8) comprises an air cylinder (81) coaxially connected to the inflatable shaft (7); the air cylinder (81) is provided with an air nozzle (82) connected to the air inlet pipe of the inflatable shaft (7); the air cylinder (81) is provided with a piston (83) sliding along the length direction of the air cylinder (81); a pumping rod (84) is fixed to the rear end of the piston (83); an air cavity is formed between the front end of the inner cylinder of the air cylinder (81) and the piston (83); a one-way air intake mechanism (85) connected to the air cavity is provided at the front end of the air cylinder (81); a pressure relief valve (86) connected to the air cavity is also provided on the side wall of the air cylinder (81); and a reciprocating mechanism (87) for driving the pumping rod (84) to move forward and backward is provided at the rear end of the air cylinder (81).

3. A crawler type filter nonwoven fabric and powder recovery device as claimed in claim 2, characterized in that: The reciprocating mechanism (87) includes an annular tube (871) coaxially arranged outside the air pumping rod (84), one end of the annular tube (871) is rotatably mounted on a side of the air cylinder (81) away from the inflation shaft (7), a plurality of guide rails (841) extending along the length direction of the air cylinder (81) are evenly distributed on the surface of the air pumping rod (84), a plurality of slide rods (811) cooperating with the guide rails (841) are arranged on the inner wall of the air cylinder (81), a positioning shaft (842) is arranged on the end of the side wall of the air pumping rod (84) away from the piston (83), a reciprocating slide groove (872) cooperating with the positioning shaft (842) is arranged on the inner wall of the annular tube (871), and a rotating handle (873) is also arranged on the end of the annular tube (871) connected to the air cylinder (81).

4. A crawler filter nonwoven fabric and powder recovery device as claimed in claim 3, characterized in that: The fixed bracket (5) is provided with a support seat (51) for fixing the inflatable shaft (7), and the two ends of the inflatable shaft (7) are connected to positioning blocks (71) through bearings. The support seat (51) is provided with a receiving groove (52) for placing the positioning block (71), and the positioning block (71) and the receiving groove (52) are movably connected.

5. A crawler type filter nonwoven fabric and powder recovery device as claimed in any one of claims 2 to 4, characterized in that: The linkage mechanism comprises a first gear (111) which is coaxially connected to the end of the inflatable shaft (7) away from the control mechanism (8), a second gear (112) which is disposed on a support seat (51) close to the first gear (111) and meshes with the first gear (111), and a third gear (113) which is connected to the second gear (112) is disposed on the other side of the support seat (51), and the third gear (113) is connected to a driving wheel of the crawler transmission device (2) via a belt (114).

6. A crawler type filter nonwoven fabric and powder recovery device as claimed in claim 5, characterized in that: The front end of the air cylinder (81) is provided with an air inlet hole (812) connected to the air cavity. The one-way air inlet mechanism (85) comprises an air inlet cover (851) provided on the air inlet hole (812). The air inlet cover (851) is provided with an air inlet passage connected to the air inlet hole (812). A steel ball (852) is provided in the air inlet passage of the air inlet cover (851). A spring (853) is provided at the rear end of the steel ball (852).

7. A crawler type filter nonwoven fabric and powder recovery device as claimed in claim 5, characterized in that: A sealing strip (831) is provided on the side wall of the piston (83).

8. A crawler type filter nonwoven fabric and powder recovery device as claimed in claim 7, characterized in that: The gas cylinder (81) is also provided with a pressure gauge (12) which is in communication with the gas cavity.

Images