CN222489203U - Vacuum filtration system and device - Google Patents

Abstract

The utility model provides a vacuum filtering system and a device, wherein the vacuum filtering device comprises a transmission mechanism, a filter, a material recovery tank and a vacuum system, the filter is arranged right below the transmission mechanism and connected with the material recovery tank, the discharge end of the material recovery tank is connected with the vacuum system, the transmission mechanism comprises a transmission belt and a processing assembly, the processing assembly comprises a cleaning mechanism and a drying mechanism, the material recovery tank is arranged in a layered mode and comprises a gas recovery section of a top layer, a liquid recovery section of a middle layer and a particulate matter recovery section of a bottom layer, the middle layer is provided with a turning plate, the liquid recovery section comprises a piston, and the piston moves downwards to a preset position under the adsorption effect of the particulate matter recovery section of the bottom layer. The utility model utilizes the material recovery tank to recover useful gas, liquid and solid materials in the filtrate, and the materials enter the vacuum system after recovery, thereby not only preventing equipment such as a vacuum pump from being corroded or damaged, but also reducing the waste of the materials and improving the filtering performance and the economical and practical performance.

Description

Vacuum filtration system and device

Technical Field

The application relates to the technical field of vacuum devices, in particular to a vacuum filtration system and a device.

Background

In the existing industrial production technology, the vacuum filter uses the action of vacuum negative pressure to make the liquid in the suspension pass through the filter medium (such as filter cloth) and then pumped into the vacuum filter system for reprocessing, while the solid particles are trapped by the filter medium, thus realizing solid-liquid separation. Wherein, the part for filtering the solid particles can continuously finish the operations of filtering, washing, drying, regenerating filter cloth, and the like. As the liquid in the suspension flows toward the filter medium, solid particles larger than or similar to the pore size of the filter medium will first deposit on the surface of the filter medium to form an initial layer, and subsequently the continuously deposited solid particles gradually form a filter cake having a certain thickness on the initially deposited layer.

The slurry is sent to the filter cloth of the equipment, the filter cloth is conveyed by a heavy rubber belt, a groove is formed in the rubber belt, a through hole is formed in the middle of the rubber belt so that liquid can be sucked into a vacuum box, filtrate and air are pumped into a vacuum main pipe at the same time, steam-water separation is firstly carried out, separated gas is pumped away by a vacuum pump, and the liquid sequentially passes through a forming area, a flushing area and a drying area after being pumped in vacuum by a water ring vacuum pump to form a qualified filter cake. However, part of soluble media may be dissolved in the filtered filtrate, and the dissolved part of substances enters the vacuum pump to possibly corrode the vacuum pump or influence the vacuum degree of suction, and further cause material loss, so that the overall filtering performance and economical and practical performance of the vacuum filter are influenced.

Disclosure of utility model

The embodiment of the utility model provides a vacuum filtration system and a device, which are used for solving the technical problems.

In a first aspect, the vacuum filtration system provided by the utility model comprises a transmission mechanism, a filter, a material recovery tank and a vacuum system, wherein the filter is arranged right below the transmission mechanism and is connected with the material recovery tank, and the discharge end of the material recovery tank is connected with the vacuum system;

The conveying mechanism comprises a conveying belt and a processing assembly, the processing assembly comprises a cleaning mechanism and a drying mechanism, the processing assembly is arranged above the conveying belt, the drying mechanism is arranged below the conveying belt, and the conveying belt comprises a material blocking skirt edge; the vacuum system comprises at least two vacuum liquid draining devices, and a plurality of vacuum liquid draining devices are arranged in a grading manner;

The material recovery tank is arranged in a layered mode and comprises a gas recovery section of a top layer, a liquid recovery section of a middle layer and a particulate matter recovery section of a bottom layer, wherein the middle layer is provided with a turning plate, the turning plate and the feeding direction of a feeding port are obliquely arranged, the liquid recovery section comprises a piston, and the piston moves downwards to a preset position under the adsorption effect of the particulate matter recovery section of the bottom layer.

Optionally, the material recovery tank further comprises a liquid outlet pipe, a gas storage tank and a solid waste pipe, wherein the liquid outlet pipe is arranged at the bottom of the middle layer, the gas storage tank is arranged at the outer side of the gas recovery section and is communicated with the gas outlet pipe, and the solid waste pipe is arranged at the bottommost end of the particulate matter recovery section.

Optionally, the vacuum box of vacuum drain includes cavity and lower cavity, go up the cavity with cut off between the cavity down, go up the cavity and be equipped with the vacuum valve outward, be equipped with the relief valve outward the cavity down.

Optionally, the material recovery tank the outside of vacuum box all is equipped with a plurality of manhole.

Optionally, an extrusion mechanism is further included, the extrusion mechanism being disposed above the processing assembly and moving synchronously with the conveyor belt.

Optionally, the extruding mechanism comprises a crawler belt, a gear shaft and a driving motor, wherein the driving motor is in driving connection with the gear shaft, and the crawler belt is meshed with a plurality of gear shafts distributed in a space range.

Optionally, an electrical system is further included, and the electrical system includes a control cabinet, a pneumatic valve and a touch controller.

In a second aspect, the utility model also provides a vacuum filtration apparatus comprising a vacuum filtration system as described in any preceding claim, the vacuum filtration apparatus being arranged to recover gaseous, liquid, solid material from filtrate during the vacuum filtration process.

Optionally, the vacuum filter system further comprises a detection system and a correction system, wherein the detection system and the correction system are integrated in the vacuum filter system, and the correction system is connected with the transmission mechanism and is used for correcting the transmission direction of the transmission belt.

The beneficial effects of the utility model are as follows:

The utility model provides a vacuum filtration system and a device, wherein the vacuum filtration system comprises a transmission mechanism, a filter, a material recovery tank and a vacuum system, the filter is arranged under the transmission mechanism and is connected with the material recovery tank, the discharge end of the material recovery tank is connected with the vacuum system, namely, when filtered filtrate enters the vacuum system to carry out vacuum separation and treatment, the filtrate is introduced into the material recovery tank, and the material recovery tank is used for recovering useful gas, liquid and solid materials in the filtrate, and the materials enter the vacuum system after recovery treatment, so that the filtrate is prevented from directly entering the vacuum system to corrode or damage equipment such as a vacuum pump, the waste of materials is reduced, and the integral filtering performance and economic and practical performances are improved.

The detailed description and the drawings refer to specific embodiments of the specification.

Drawings

FIG. 1 shows a schematic diagram of a vacuum filtration system provided by the utility model;

FIG. 2 is a schematic view showing a structure and a partial cross-section of a vacuum drainage device according to an embodiment of the present application;

FIG. 3 is a schematic diagram showing a cross section and an internal structure of a material recovery tank according to an embodiment of the present application;

FIG. 4 shows a schematic partial cross-sectional view of a misting tower and a humidifying tower in an embodiment of the application.

Reference numerals:

1. The device comprises a conveying belt, a 2 processing assembly, a 21 cleaning mechanism, a 22 drying mechanism, a 3 vacuum liquid discharging device, a 31 upper cavity, a 32 lower cavity, a 310 vacuum valve, a 320 vacuum valve, a pressure release valve, a 4 material recovery tank, a 40 returning plate, a 41 gas recovery section, a 42 liquid recovery section, a 43 particulate matter recovery section, a 410 gas storage tank, a 420 liquid outlet pipe, a 430 solid waste pipe, a5 extrusion mechanism, a 51 track, a 52 gear shaft, a 10 manhole.

Detailed Description

The technical solutions in the application embodiments will be clearly and completely described below with reference to the drawings in the application embodiments. Furthermore, the appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

It should also be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one of the elements" does not exclude that additional identical elements are present in an article or terminal device comprising the element.

In the related art related to vacuum filtration, a vacuum filter utilizes the action of vacuum negative pressure to make the liquid in suspension pass through the filtered filter cloth and then pumped into a vacuum filtration system for reprocessing, while solid particles are trapped by the filtered filter cloth, and then the solid particles are dried into a filter cake state and are removed from the filter cloth, and the filter cloth continuously and circularly receives other suspension to be processed. However, in the prior art, the filtrate filtered and cleaned by the filter cloth enters the vacuum system, which may cause corrosion of a vacuum pump in the vacuum system or influence the vacuum degree of suction, and further cause material loss, thereby influencing the whole filtering performance and economical and practical performance of the vacuum filter.

In a first aspect, the utility model provides a vacuum filtration system, which comprises a transmission mechanism, a filter, a material recovery tank 4 and a vacuum system, wherein the filter is arranged right below the transmission mechanism and connected with the material recovery tank 4, and the discharge end of the material recovery tank 4 is connected with the vacuum system.

The vacuum filtration system provided by the utility model comprises a transmission mechanism, a filter, a material recovery tank 4 and a vacuum system, wherein the filter is arranged right below the transmission mechanism and is connected with the material recovery tank 4, the discharge end of the material recovery tank 4 is connected with the vacuum system, namely, when filtered filtrate enters the vacuum system to carry out vacuum separation and treatment, the filtrate is introduced into the material recovery tank 4, and the material recovery tank 4 is used for recovering useful gas, liquid and solid materials in the filtrate and then enters the vacuum system after recovery treatment, so that the filtrate is prevented from directly entering the vacuum system to corrode or damage equipment such as a vacuum pump, the waste of materials is reduced, and the integral filtration performance, economical performance and practical performance are improved.

The conveying mechanism comprises a conveying belt 1 and a processing assembly 2, the processing assembly 2 comprises a cleaning mechanism 21 and a drying mechanism 22, the processing assembly 2 is arranged above the conveying belt 1, the drying mechanism 22 is arranged below the conveying belt 1, the conveying belt 1 comprises a material blocking skirt, the vacuum system comprises at least two vacuum liquid discharging devices 3, and the plurality of vacuum liquid discharging devices 3 are arranged in a grading mode.

As shown in fig. 1, in this embodiment, a conveyor belt 1 on a conveyor mechanism is used for carrying a filter cloth loaded with solid particles, the whole conveyor belt 1 is driven in a closed loop, and a cleaning mechanism 21 and a drying mechanism 22 are sequentially arranged in the extending direction of the conveyor belt 1, and are respectively used for washing the solid particles deposited on the filter cloth again, so that components which can permeate the filter cloth on the solid particles penetrate the filter cloth as much as possible, and only the solid particles are reserved. The precipitated solid particles are then transported to a subsequent drying process, and the drying mechanism 22 may directly dry the particles on the filter cloth using existing heating elements.

The vacuum system comprises a plurality of vacuum liquid draining devices 3, and the vacuum liquid draining devices 3 collect and store filtrate which passes through the filter cloth and realize gas-liquid separation. The plurality of vacuum liquid discharging devices 3 are arranged in a grading manner, wherein one of the vacuum liquid discharging devices 3 is used as mother liquid to be simply treated and stored, and the other vacuum liquid discharging devices 3 respectively carry out gas-liquid separation treatment on the mother liquid, and the treated gas and liquid are collected after being collected.

As shown in fig. 2, the vacuum box of the vacuum drainage device 3 comprises an upper cavity 31 and a lower cavity 32, the upper cavity 31 is separated from the lower cavity 32, a vacuum valve 310 is arranged outside the upper cavity 31, and a pressure release valve 320 is arranged outside the lower cavity 32. When the vacuum valve 310 is opened, the interior of the upper chamber 31 is in a negative pressure state, the external filtrate is sucked into the upper chamber 31, after the gas-liquid separation, and after the liquid level in the upper chamber 31 reaches a preset liquid level, the pressure release valve 320 is opened, and the part of the liquid flows into the lower chamber 32 and is finally discharged from the output pipeline connected with the lower chamber 32. The upper cavity 31 further comprises a folding plate 40, and the folding plate 40 has the function of colliding the gas-liquid mixture sucked into the upper cavity 31 on the folding plate 40, so that bubbles are broken, the gas floats to an air outlet, and the liquid falls between the style layers of the upper cavity 32 and the lower cavity 32 under the action of dead weight.

In addition, the material recovery tank 4 can be arranged in a layered manner, and comprises a gas recovery section 41 at the top layer, a liquid recovery section 42 at the middle layer and a particulate matter recovery section 43 at the bottom layer, wherein the middle layer is provided with a turning plate 40, the turning plate 40 and the feeding direction of a feeding port are obliquely arranged, the liquid recovery section 42 comprises a piston, and the piston moves downwards to a preset position under the adsorption effect of the particulate matter recovery section 43 at the bottom layer.

As shown in fig. 3, the material recovery tank 4 functions to separate gas, liquid and solid and recover the recoverable portion thereof. The lighter gas rises directly to the top layer of the tank, the liquid after gas-liquid separation falls onto the piston of the middle layer, which may contain some small solid particles that gradually precipitate in the liquid, after the liquid level and total weight of the middle layer reach preset parameters, the adsorption of the piston by the bottom layer and the dead weight of the piston and the liquid make the piston descend to the bottom layer, and the small solid particles precipitated in the particulate recovery section 43 of the bottom layer are recovered to a specific device.

It should be noted that the material recovery tank 4 further includes a liquid outlet pipe 420, a gas storage tank 410, and a solid waste pipe 430, wherein the liquid outlet pipe 420 is disposed at the bottom of the middle layer, the gas storage tank 410 is disposed at the outer side of the gas recovery section 41 and is communicated with the gas outlet pipe, and the solid waste pipe 430 is disposed at the bottommost end of the particulate matter recovery section 43. And discharging the recovered gas into the gas storage tank 410, discharging the recovered liquid from the liquid outlet pipe 420, and discharging the recovered small solid particles from the solid waste pipe 430, respectively.

In some embodiments, the material recovery tank 4 and the outside of the vacuum box are provided with a plurality of manholes 10. The manhole 10 is convenient for maintenance personnel to enter the tank body for maintenance, and the treatment process in the tank body can be observed through glass at the manhole 10, and the size, the position, the shape and the like of the manhole 10 are not particularly limited in the embodiment.

In other embodiments, the vacuum filtration system further comprises a pressing mechanism 5, the pressing mechanism 5 being disposed above the processing assembly 2 and moving synchronously with the conveyor belt 1. As shown in fig. 4, the extrusion mechanism 5 is arranged to apply extrusion force to the particle bed on the filter cloth, so that the space between particles is compressed, and the liquid between the particles is extruded to penetrate the filter cloth, so that the drying pressure of the subsequent filter cake is reduced, and the energy utilization efficiency is improved. The squeezing mechanism 5 may comprise a crawler belt 51, a gear shaft 52 and a driving motor in driving connection with the gear shaft 52, the crawler belt 51 being meshed with a plurality of gear shafts 52 distributed in a spatial range. The pressure of the crawler belt 51 on the particle bed is then adjusted by adjusting the distance between the gear shaft 52 and the particle bed. Of course, a plurality of pressing mechanisms 5 may be adaptively provided according to the length of the actual particle bed, which is not particularly limited in this embodiment.

In addition, the system also comprises an electrical system, wherein the electrical system comprises a control cabinet, a pneumatic valve and a touch controller. The touch controller can remotely adjust various parameters in the system, including adjusting the automatic opening and closing of the pneumatic valve.

In a second aspect, the utility model also provides a vacuum filtration apparatus comprising a vacuum filtration system of any of the preceding claims, the vacuum filtration apparatus being arranged to recover gaseous, liquid, solid material from a filtrate during the vacuum filtration process.

In addition, the vacuum filter system further comprises a detection system and a correction system, wherein the detection system and the correction system are integrated in the vacuum filter system, and the correction system is connected with the transmission mechanism and is used for correcting the transmission direction of the transmission belt 1.

In this embodiment, the vacuum filtration system is set to a vacuum filtration device in cooperation with a mechanical structure, and by using the device, gaseous, liquid and solid materials in the liquid to be treated can be recovered, so that the filtration quality is improved, and the waste of the materials is reduced.

Finally, the utility model provides another vacuum filtering system and device, the vacuum filtering device comprises a conveying mechanism, a filter, a material recovery tank 4 and a vacuum system, wherein the filter is arranged right below the conveying mechanism and connected with the material recovery tank 4, the discharging end of the material recovery tank 4 is connected with the vacuum system, the conveying mechanism comprises a conveying belt 1 and a treatment assembly 2, the treatment assembly 2 comprises a cleaning mechanism 21 and a drying mechanism 22, the treatment assembly 2 is arranged above the conveying belt 1, the drying mechanism 22 is arranged below the conveying belt 1, the material recovery tank 4 is arranged in a layered mode and comprises a gas recovery section 41 of a top layer, a liquid recovery section 42 of a middle layer and a particle recovery section 43 of a bottom layer, the middle layer is provided with a turning-back plate 40, the liquid recovery section 42 comprises a piston, and the piston moves downwards to a preset position under the adsorption effect of the particle recovery section 43 of the bottom layer. The utility model utilizes the material recovery tank 4 to recover the useful gas, liquid and solid materials in the filtrate, and the materials enter the vacuum system after recovery treatment, thereby not only preventing equipment such as a vacuum pump from being corroded or damaged, but also reducing the waste of the materials and improving the integral filtering performance and economic and practical performance.

It should be noted that, the foregoing embodiments all belong to the same inventive concept, and the descriptions of the embodiments have emphasis, and where the descriptions of the individual embodiments are not exhaustive, reference may be made to the descriptions of the other embodiments. In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. The vacuum filtration system is characterized by comprising a transmission mechanism, a filter, a material recovery tank (4) and a vacuum system, wherein the filter is arranged right below the transmission mechanism and is connected with the material recovery tank (4), and the discharge end of the material recovery tank is connected with the vacuum system;

The vacuum system comprises at least two vacuum liquid draining devices (3), and a plurality of vacuum liquid draining devices (3) which are arranged in a grading manner, wherein the conveying mechanism comprises a conveying belt (1) and a processing assembly (2), the processing assembly (2) comprises a cleaning mechanism (21) and a drying mechanism (22), the processing assembly (2) is arranged above the conveying belt (1), the drying mechanism (22) is arranged below the conveying belt (1), and the conveying belt (1) comprises a material blocking skirt edge;

The material recovery tank (4) is arranged in a layered mode and comprises a gas recovery section (41) of a top layer, a liquid recovery section (42) of a middle layer and a particulate matter recovery section (43) of a bottom layer, wherein a turning plate (40) is arranged on the middle layer, the turning plate (40) and the feeding direction of a feeding port are obliquely arranged, the liquid recovery section (42) comprises a piston, and the piston moves downwards to a preset position under the adsorption effect of the particulate matter recovery section (43) of the bottom layer.

2. The vacuum filtration system according to claim 1, wherein the material recovery tank (4) further comprises a liquid outlet pipe (420), a gas storage tank (410) and a solid waste pipe (430), the liquid outlet pipe (420) is arranged at the bottom of the middle layer, the gas storage tank (410) is arranged at the outer side of the gas recovery section (41) and is communicated with the gas outlet pipe, and the solid waste pipe (430) is arranged at the bottommost end of the particulate matter recovery section (43).

3. Vacuum filtration system according to claim 1, characterized in that the vacuum box of the vacuum drainage device (3) comprises an upper cavity (31) and a lower cavity (32), the upper cavity (31) is separated from the lower cavity (32), a vacuum valve (310) is arranged outside the upper cavity (31), and a pressure relief valve (320) is arranged outside the lower cavity (32).

4. A vacuum filtration system according to claim 3, characterized in that the material recovery tank (4) and the outside of the vacuum box are provided with a number of manholes (10).

5. Vacuum filtration system according to claim 1, further comprising a pressing mechanism (5), said pressing mechanism (5) being arranged above said treatment assembly (2) and moving synchronously with said conveyor belt (1).

6. The vacuum filtration system according to claim 5, wherein the pressing mechanism (5) comprises a crawler belt (51), a gear shaft (52) and a driving motor, the driving motor is in driving connection with the gear shaft (52), and the crawler belt (51) is meshed with a plurality of the gear shafts (52) distributed in a space range.

7. The vacuum filtration system of claim 1, further comprising an electrical system comprising a control cabinet, a pneumatic valve, a touch controller.

8. A vacuum filtration apparatus comprising a vacuum filtration system according to any one of claims 1 to 7, said vacuum filtration apparatus being arranged to recover gaseous, liquid and solid materials from a filtrate during a vacuum filtration process.

9. Vacuum filter device according to claim 8, further comprising a detection system, which is integrated in the vacuum filter system, and a correction system, which is connected to the transport mechanism and is arranged to correct the transport direction of the transport belt (1).