CN215462386U

CN215462386U - Belt type pressure filter

Info

Publication number: CN215462386U
Application number: CN202122254088.8U
Authority: CN
Inventors: 龚景仁; 卢伟; 周铁辉; 许伟; 王英帆; 张徽东
Original assignee: Qingdao Hesheng Intelligent Environmental Protection Equipment Co ltd
Current assignee: Qingdao Hesheng Intelligent Environmental Protection Equipment Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-01-11
Anticipated expiration: 2031-09-17

Abstract

The utility model relates to the technical field of solid-liquid separation equipment, in particular to a belt type pressure filter, which comprises filter cloth, a pressure device, a driving device, a discharging device, a filter cloth cleaning device, a filter cloth tensioning device, a filter cloth deviation correcting device and a feeding system, wherein the pressure device, the driving device, the discharging device, the filter cloth cleaning device, the filter cloth tensioning device, the filter cloth deviation correcting device and the feeding system are arranged on a main machine frame, and the pressure device comprises a thrust assembly, a supporting assembly, a locking mechanism, a lower pressure plate and an upper pressure plate which are transversely arranged. The locking mechanism comprises a locking fixed block fixed on the support component, a matched locking moving block is arranged below the locking fixed block, and the locking moving block can be pushed by a hydraulic cylinder B and clamped between the locking fixed block and the upper pressure plate; and the hydraulic cylinder B is fixed on the upper pressure plate. Through setting up locking mechanism in the top of filter cloth, effectively avoided the infiltration liquid to locking mechanism's corruption, simultaneously, locking mechanism also can produce the auto-lock effect, and overall structure is simple, and it is convenient to make, practices thrift the cost.

Description

Belt type pressure filter

Technical Field

The utility model relates to the technical field of solid-liquid separation equipment, in particular to a belt type pressure filter.

Background

The horizontal belt type pressure filter is a positive pressure filtering full-automatic solid-liquid separation equipment which is designed by combining the structural characteristics of a belt type vacuum filter and a filter press. The feeding system supplies materials to the pressurizing device, the materials enter a filtering chamber in the pressurizing device, and then the materials in the filtering chamber are pressurized through the pressurizing device, so that liquid in the materials is discharged through the filtering cloth, solid particles are intercepted by the filtering cloth, and solid-liquid separation is realized. In the prior art, for example, a patent CN208212636U horizontal belt type pressure filter mainly comprises a main frame, a pressure device, a driving device, a discharging device, a filter cloth cleaning device, a filter cloth tensioning device, a filter cloth deviation rectifying device and a feeding system.

However, in the actual use process of the existing horizontal belt type pressure filter, the penetrating fluid generated in the working process of the existing horizontal belt type pressure filter can enter the lifting locking mechanism in the pressure device to corrode the lifting locking mechanism to a certain extent; in addition, in the manufacturing and assembling process, the parts of the lifting locking mechanism have high processing precision requirement, complex assembling process, high assembling precision requirement and large overhauling workload.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a belt type pressure filter, which can prevent permeation liquid from entering a locking mechanism in the use process, and the locking mechanism has a simple structure and is convenient to maintain.

In order to achieve the purpose, the utility model provides a belt type pressure filter, which comprises filter cloth, a pressure device, a driving device, a discharging device, a filter cloth cleaning device, a filter cloth tensioning device, a filter cloth deviation correcting device and a feeding system, wherein the pressure device, the driving device, the filter cloth tensioning device and the filter cloth deviation correcting device are arranged on a main machine frame; the top of the supporting component is fixedly connected with the thrust component, and the bottom of the supporting component is fixedly connected with the lower pressure plate; the feeding system is communicated with the filter chamber through a hose; the thrust assembly is used for driving the upper pressure plate to move in the vertical direction;

the locking mechanism comprises a locking fixed block fixed on the support component, a matched locking moving block is arranged below the locking fixed block, and the locking moving block is configured to be pushed and clamped between the locking fixed block and the upper pressure plate through a hydraulic cylinder B; the hydraulic cylinder B is fixed on the upper pressure plate; the locking moving block is in sliding fit with the locking fixing block and the upper pressure plate.

Further, the filtering chamber comprises a lower filtering chamber and a slurry pressurizing cavity, the lower filtering chamber is hermetically fixed at the upper end of the lower pressing plate, and the slurry pressurizing cavity is hermetically fixed at the lower end of the upper pressing plate; the filter cloth is positioned between the lower filtering chamber and the slurry pressurizing cavity; the lower filtering chamber is used for discharging liquid; the hose is in communication with the slurry pressurization cavity.

Further, a layer of rubber diaphragm is arranged between the slurry pressurizing cavity and the upper pressing plate in a sealing mode, and the upper portion of the rubber diaphragm is communicated with an external air source; the rubber diaphragm is used for extruding the slurry on the filter cloth.

Further, the thrust assembly comprises a longitudinal thrust block, a hydraulic cylinder A is fixedly arranged in the middle of the thrust block, and the end part of an upper piston rod of the hydraulic cylinder A is fixedly connected with the upper pressure plate; the thrust block is provided with the supporting components along the longitudinal two ends respectively.

Furthermore, the supporting assembly comprises a supporting shaft, and the supporting shaft sequentially penetrates through the thrust block, the upper pressing plate and the lower pressing plate; the thrust block is fixed at the upper end of the supporting shaft; the lower pressing plate is fixed at the lower end of the supporting shaft; the locking fixing block is fixed on the supporting shaft.

Furthermore, a supporting tube is sleeved on the supporting shaft and is positioned between the thrust block and the locking fixing block, and the supporting tube is in sliding fit with the upper pressing plate; the supporting shaft is sequentially in threaded connection with a locking nut A and a locknut A; and the locking nut A is fastened at the upper end of the thrust block.

Furthermore, the supporting shaft is sequentially in threaded connection with a locking nut B and a locknut B, a shaft shoulder is further arranged on the supporting shaft, and the locking nut B is used for fastening the lower pressing plate at the lower end of the shaft shoulder.

Furthermore, the upper pressure plate is respectively provided with the thrust assemblies along the two transverse ends, and a connecting square pipe is fixedly arranged between the two thrust assemblies.

Furthermore, one end of the locking moving block, which is close to the supporting shaft, is provided with a notch, and the notch is matched with the supporting shaft.

Furthermore, the locking fixed block and the locking moving block are in wedge-shaped surface contact.

Compared with the prior art, the utility model has the beneficial effects that: the liquid permeated from the filtering chamber can only drip downwards under the action of gravity and can not enter the locking mechanism, so that the locking mechanism is effectively prevented from being corroded due to the entering of the permeating liquid; secondly, the locking mechanism consists of a locking fixed block and a locking moving block, and has simple processing technology on structure, low requirement on processing precision, and low manufacturing cost because of adopting a common processing method; in assembly, the assembly process of the several pieces is simpler, does not require any precise assembly method or skill, and is structurally more reliable than the press of prior art devices.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the pressurizing device of fig. 1.

Fig. 3 is a left side view of fig. 2.

Wherein: 1. a host machine frame; 2. a filter cloth deviation correcting device; 3. a feed system; 4. a filter cloth tensioning device; 5. a filter cloth cleaning device; 6. a discharge device; 7. a pressurizing device; 8. a filter cloth; 9. a drive device; 11. a filter cloth return-to-zero sensor; 12. a filter cloth support platform; 31. a hose; 71. a lower pressing plate; 72. an upper pressure plate; 73. a thrust assembly; 74. a support assembly; 75. a locking mechanism; 76. a slurry pressurization chamber; 77. a lower filtering chamber; 721. an air containing cavity; 731. a hydraulic cylinder A; 732. a thrust block; 733. connecting the square tubes; 734. lifting lugs; 741. a locknut A; 742. locking the nut A; 743. a support shaft; 744. supporting a tube; 745. locking the nut B; 746. a locknut B; 751. locking the fixed block; 752. locking a moving block; 753. a hydraulic cylinder B; 771. a perforated plate; 772. a filtrate collection chamber; 743-1, a shaft shoulder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Examples

Referring to fig. 1 to 3, the utility model provides a belt type pressure filter, which comprises a filter cloth 8, a pressure device 7, a driving device 9, a discharging device 6, a filter cloth cleaning device 5, a filter cloth tensioning device 4, a filter cloth deviation correcting device 2 and a feeding system 3, wherein the pressure device 7, the driving device 9, the discharging device 6, the filter cloth cleaning device 5, the filter cloth tensioning device 4 and the filter cloth deviation correcting device 2 are arranged on a main frame 1, the driving device 9 is used for driving the filter cloth 8 to perform annular winding operation, the filter cloth 8 sequentially passes through the pressure device 7, the discharging device 6, the filter cloth cleaning device 5, the filter cloth tensioning device 4 and the filter cloth deviation correcting device 2, and the filter cloth cleaning device 5 is positioned on one side of the discharging device 6; the pressurizing device 7 comprises a thrust assembly 73, a support assembly 74, a locking mechanism 75, a lower pressing plate 71 and an upper pressing plate 72 which are transversely arranged, and a sealed filtering chamber is formed between the lower pressing plate 71 and the upper pressing plate 72; the top of the supporting component 74 is fixedly connected with the thrust component 73, and the bottom of the supporting component 74 is fixedly connected with the lower pressure plate 71; the feeding system 3 communicates with the filtering chamber through a hose 31; the thrust assembly 73 is used for driving the upper pressure plate 72 to move in the vertical direction; the locking mechanism 75 comprises a locking fixed block 751 fixed on the support component 74, a matched locking moving block 752 is arranged below the locking fixed block 751, and the locking moving block 752 can be pushed and clamped between the locking fixed block 751 and the upper pressure plate 72 by a hydraulic cylinder B753; the hydraulic cylinder B753 is fixed on the upper pressure plate 72; the locking moving block 752 is slidably engaged with the locking fixing block 751 and the upper pressing plate 72. Through setting up locking mechanism 75 in the top of filter cloth 8, effectively avoided the penetrant to locking mechanism 75's corruption, simultaneously, locking mechanism 75 also can produce the auto-lock effect.

As an embodiment of the present invention, the filtering chamber includes a lower filtering chamber 77 and a slurry pressurizing chamber 76, the lower filtering chamber 77 is hermetically fixed to the upper end of the lower pressing plate 71, and the slurry pressurizing chamber 76 is hermetically fixed to the lower end of the upper pressing plate 72; the filter cloth 8 is positioned between the lower filtering chamber 77 and the slurry pressurizing chamber 76; the lower filtering chamber 77 is used for discharging liquid; the hose 31 communicates with the slurry pressurizing chamber 76.

Preferably, a layer of rubber diaphragm 78 is arranged between the slurry pressurizing cavity 76 and the upper pressing plate 72 in a sealing way, and the upper part of the rubber diaphragm 78 is communicated with an external air source; the rubber diaphragm 78 is used to press the slurry on the filter cloth 8. The slurry on the filter cloth 8 is here in the form of a cake and gradually becomes a cake layer during the pressing process, and is therefore also referred to as a cake layer of solid particles.

Specifically, a sealed air accommodating chamber 721 is formed between the rubber diaphragm 78 and the upper platen 72, and the air accommodating chamber 721 is communicated with an external air source through a pipeline. When the filter cloth is used, the air containing cavity 721 is filled with air, the air generates pressure to act on the rubber diaphragm 78, the rubber diaphragm 78 vertically deforms downwards, and materials on the filter cloth 8 can be extruded in sequence. The air-containing chamber 721 may be filled with high pressure water for use, and the corresponding air-containing chamber 721 needs to be communicated with an external water source.

As an embodiment of the present invention, the thrust assembly 73 includes a longitudinal thrust block 732, a hydraulic cylinder a731 is fixedly disposed in the middle of the thrust block 732, and an end of a piston rod of the hydraulic cylinder a731 is fixedly connected to the upper pressure plate 72; the thrust block 732 is provided with the support assemblies 74 at both ends in the longitudinal direction, respectively.

As an embodiment of the present invention, the supporting assembly 74 includes a supporting shaft 743, and the supporting shaft 743 passes through the thrust block 732, the upper pressing plate 72, and the lower pressing plate 71 in sequence; the thrust block 732 is fixed to the upper end of the support shaft 743; the lower pressure plate 71 is fixed at the lower end of the supporting shaft 743; the locking fixing block 751 is fixed on the support shaft 743.

Preferably, the support shaft 743 is sleeved with a support tube 744, the support tube 744 is positioned between the thrust block 732 and the locking fixing block 751, and the support tube 744 is in sliding fit with the upper pressure plate 72; a locking nut A742 and a locknut A741 are sequentially connected to the support shaft 743 through threads; a lock nut a742 is fastened to the upper end of the thrust block 732. Thus, the thrust block 732 is supported by the locking fixing block 751 and the support tube 744, and is fixed to the support shaft 743 by the locking nut a742 and the locknut a 741.

Preferably, a lock nut B745 and a locknut B746 are sequentially threadedly coupled to the support shaft 743, a shaft shoulder 743-1 is further provided on the support shaft 743, and the lock nut B745 is used to fasten the lower pressure plate 71 to the lower end of the shaft shoulder 743-1.

As an embodiment of the present invention, thrust assemblies 73 are respectively disposed at both ends of the upper pressing plate 72 along the transverse direction, and a connecting square tube 733 is fixedly disposed between the two thrust assemblies 73.

Specifically, the connecting square tube 733 connects the two thrust blocks 732. The upper end of the thrust block 732 may also be provided with a plurality of lifting lugs 734 for hoisting and maintenance.

In summary, the locking moving block 752 may be provided with a notch at an end close to the supporting shaft 743, and the notch is matched with the supporting shaft 743; i.e. the locking moving block 752 is fork shaped. Preferably, a wedge-shaped surface contact is adopted between the locking fixed block 751 and the locking moving block 752, so that the locking effect is increased.

Preferably, the locking fixing block 751 is a cube-shaped member with an upper surface processed as a horizontal plane, a lower surface processed as inclined planes at both sides thereof near the outside, a middle processed as a horizontal plane, and a through hole between the upper and lower planes, with respect to the wedge-shaped surface contact. The locking fixing block 751 is fixed on the support shaft 743 through a through hole, and the lower horizontal plane is located at the upper end of the shaft shoulder 743-1; the locking moving block 752 is a fork-shaped component, the lower surface of the fork shape is processed into a horizontal plane, the upper surface is processed into an inclined plane, and the degree of the included angle between the inclined plane and the horizontal plane (hereinafter referred to as inclination) is the same as the inclination of the locking fixing block 751.

Further, the bottom of the slurry pressurizing chamber 75 may be provided with an annular seal 79. The lower filter chamber 77 comprises a filtrate collecting chamber 772, and a perforated plate 771 is arranged on the filtrate collecting chamber 772, and the perforated plate 771 is positioned below the filter cloth 8.

In the use, the filter cloth return-to-zero inductor 11 can be arranged at the position, close to the filter cloth 8, of the upper end of the left side of the host bracket 1, so that the requirements of a user are met, and the details are not repeated. Compared with the prior art, the filter cloth unloading device simplifies the number of rollers used on the filter cloth 8 on one side of the unloading device 6, horizontally places the part of the filter cloth 8, and arranges the filter cloth supporting platform 12 between the filter cloth 8 and the main frame 1.

The main working principle of the utility model is as follows:

the position of the upper press plate 2 is locked by the locking mechanism 75 so that a sealed filtering chamber is formed between the upper press plate 2 and the lower base plate 1, wherein a sealed slurry pressurizing chamber 76 is arranged above the filtering cloth 8, and a lower filtering chamber 77 is arranged below the filtering cloth 8. When the material enters the slurry pressurizing cavity 76 through the feeding system 3 and fluid pressure is formed in the slurry pressurizing cavity 76, under the action of the fluid pressure, liquid in the material sequentially penetrates through the micropores and the porous plates 771 on the filter cloth 8, enters the filtrate collecting cavity 772 and is discharged, and solid particles are intercepted by the filter cloth 8 to form a filter cake layer; then, the introduced high-pressure water or high-pressure gas acts on the rubber diaphragm 78, so that the rubber diaphragm 78 is pressed, expanded and deformed, a filtering cake layer formed in the filtering chamber is mechanically pressed, water in the cake layer is squeezed out, and the water enters the filtrate collecting cavity 772 through the micropores and the porous plate 771 in the filtering cloth 8 and is discharged; then high-pressure air enters the filter cavity through the pipeline 31 and is gathered above the filter cake layer to form air pressure, and under the action of the pressure, the high-pressure air blows through the filter cake layer and takes away moisture in the filter cake layer; finally, the locking mechanism 75 is released, the filter chamber is opened through the oil cylinder A753, the driving device 9 drives the filter cloth 8 and the filter cake to move forward, the filter cake is discharged at the discharging device 6, and solid-liquid separation of the slurry is completed.

The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. The above-described embodiments of the utility model are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims, and not by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a belt type pressure filter, includes filter cloth (8) and installs pressure device (7), drive arrangement (9), discharge apparatus (6), filter cloth belt cleaning device (5), filter cloth overspeed device tensioner (4), filter cloth deviation correcting device (2) and feed system (3) on host computer frame (1), drive arrangement (9) are used for driving filter cloth (8) carry out the annular and revolve around the operation, filter cloth (8) pass through in proper order pressure device (7), discharge apparatus (6), filter cloth belt cleaning device (5), filter cloth overspeed device tensioner (4) and filter cloth deviation correcting device (2), filter cloth belt cleaning device (5) are located one side of discharge apparatus (6), a serial communication port, pressure device (7) include thrust subassembly (73), supporting component (74), locking mechanism (75) and transversely place holding down plate (71), The upper pressing plate (72), a sealed filter chamber is formed between the lower pressing plate (71) and the upper pressing plate (72); the top of the supporting component (74) is fixedly connected with the thrust component (73), and the bottom of the supporting component (74) is fixedly connected with the lower pressure plate (71); the feeding system (3) is communicated with the filtering chamber through a hose (31); the thrust assembly (73) is used for driving the upper pressure plate (72) to move in the vertical direction;

the locking mechanism (75) comprises a locking fixing block (751) fixed on the support component (74), a matched locking moving block (752) is arranged below the locking fixing block (751), and the locking moving block (752) is configured to be pushed and clamped between the locking fixing block (751) and the upper pressure plate (72) through a hydraulic cylinder B (753); the hydraulic cylinder B (753) is fixed on the upper pressure plate (72); the locking moving block (752) is in sliding fit with the locking fixing block (751) and the upper pressure plate (72).

2. A belt press filter according to claim 1 wherein the filtering chamber comprises a lower filtering chamber (77) and a slurry pressurizing chamber (76), the lower filtering chamber (77) being sealingly fixed to the upper end of the lower platen (71), the slurry pressurizing chamber (76) being sealingly fixed to the lower end of the upper platen (72); the filter cloth (8) is positioned between the lower filter chamber (77) and the slurry pressurizing chamber (76); the lower filtering chamber (77) is used for discharging liquid; the hose (31) communicates with the slurry pressurizing chamber (76).

3. A belt type pressure filter according to claim 2, wherein a layer of rubber diaphragm (78) is arranged between the slurry pressurizing chamber (76) and the upper pressure plate (72) in a sealing way, and the upper part of the rubber diaphragm (78) is communicated with an external air source; the rubber diaphragm (78) is used for extruding the slurry on the filter cloth (8).

4. A belt type pressure filter according to claim 3, wherein the thrust assembly (73) comprises a longitudinal thrust block (732), a hydraulic cylinder a (731) is fixedly arranged in the middle of the thrust block (732), and the end of the upper piston rod of the hydraulic cylinder a (731) is fixedly connected with the upper pressure plate (72); the thrust block (732) is provided with the support assembly (74) at both ends in the longitudinal direction.

5. A belt-type pressure filter according to claim 4, wherein the support assembly (74) comprises a support shaft (743), the support shaft (743) passing through the thrust block (732), the upper pressure plate (72), the lower pressure plate (71) in this order; the thrust block (732) is fixed at the upper end of the supporting shaft (743); the lower pressing plate (71) is fixed at the lower end of the supporting shaft (743); the locking fixing block (751) is fixed on the supporting shaft (743).

6. The belt type pressure filter according to claim 5, wherein a support tube (744) is sleeved on the support shaft (743), the support tube (744) is positioned between the thrust block (732) and the locking fixing block (751), and the support tube (744) is in sliding fit with the upper pressure plate (72); a locking nut A (742) and a locknut A (741) are sequentially connected to the support shaft (743) in a threaded manner; the lock nut a (742) is fastened to an upper end of the thrust block (732).

7. A belt type pressure filter according to claim 5, wherein a lock nut B (745) and a locknut B (746) are threadedly connected to the support shaft (743) in this order, and a shaft shoulder (743-1) is further provided to the support shaft (743), and the lock nut B (745) is used to fasten the lower pressure plate (71) to the lower end of the shaft shoulder (743-1).

8. A belt press filter according to any one of claims 1 to 7, wherein the upper pressure plate (72) is provided with the thrust assemblies (73) at both ends in the transverse direction, respectively, and a connecting square pipe (733) is fixedly arranged between the two thrust assemblies (73).

9. A belt press filter according to any one of claims 5 to 7, wherein the locking moving block (752) is notched at one end near the support shaft (743), said notch matching the support shaft (743).

10. Belt press filter according to claim 9, characterised in that the locking fixed block (751) and the locking moving block (752) are in wedge-face contact.