Belt type vacuum filter

Abstract

The utility model discloses a belt type vacuum filter, belongs to the technical field of filters, and aims to solve the problem that the filtering efficiency of filter cloth is low due to the fact that the filter cloth of the conventional belt type vacuum filter is not cleaned in place. The filter comprises a rack, a driving roller and a driven roller are installed on the rack, the driving roller and the driven roller are sleeved with a rubber belt, the rubber belt comprises an upper layer section located on the upper portion of the driving roller and a lower layer section located on the lower portion of the driving roller, a filter cloth module is further arranged on the rack and comprises a plurality of rollers and filter cloth, and the rollers are sleeved with the filter cloth. The filter cloth comprises a filter section located on the upper portion of the driving roller and a return section located on the lower portion of the driving roller, the lower surface of the filter section is attached to the upper-layer section, the rubber belt is provided with a water discharging opening, a vacuum box is arranged between the upper-layer section and the lower-layer section and communicated with a vacuum pump, a scraper is arranged beside the driving roller, and a discharging hopper is arranged above the filter section. And a cleaning roller and a spraying assembly are arranged on the return section. The utility model is suitable for the belt type vacuum filter.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a belt type vacuum filter. Background Art

[0002] Belt vacuum filter is a highly efficient equipment widely used in solid-liquid separation. Its working principle mainly relies on material gravity and vacuum suction, and uses filter cloth as the filter medium to achieve effective separation of solid and liquid.

[0003] The belt vacuum filter not only has high filtration efficiency and large production capacity, but also has good washing effect, low filter cake moisture, flexible operation and simple maintenance. Therefore, it is widely used in mining, pharmaceuticals, petroleum, coal, papermaking, electricity, thermal power, metallurgy, chemical industry, food, coal washing, environmental protection and other fields, as well as solid-liquid separation process of iron ore concentrate uranium leaching liquid, pulping, gypsum desulfurization, resin production, sewage treatment and other processes.

[0004] During the use of the existing belt vacuum filter, fine particles will remain on the filter cloth. As the use time increases, the particles will gradually accumulate and block the filter holes of the filter cloth, resulting in low filtration efficiency. Therefore, the existing belt vacuum filter is mostly equipped with a cleaning device to clean the filter cloth to remove the residual particles. However, its cleaning method is relatively simple and the cleaning coverage is also small. It is difficult to clean the filter cloth properly, which still leads to the problem of low filtration efficiency of the filter cloth. Utility Model Content

[0005] The utility model aims to provide a belt vacuum filter to solve the problem that the existing belt vacuum filter cloth is not properly cleaned, resulting in low filtering efficiency of the filter cloth.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The filter press as claimed in claim 1, wherein the driving roller is installed on the frame, and a driven roller is installed on the side of the frame away from the driving roller, and a rubber belt is sleeved on the driving roller and the driven roller, and the rubber belt comprises an upper section located on the upper part of the driving roller and a lower section located on the lower part of the driving roller. The filter cloth module is also provided on the frame, and the filter cloth module comprises a plurality of rollers and filter cloths, and the filter cloths are sleeved on the plurality of rollers, and the filter cloths comprise a filtering section located on the upper part of the driving roller and a return section located on the lower part of the driving roller, and the lower surface of the filtering section is in contact with the upper section, and a water outlet is provided on the rubber belt, a vacuum box is provided between the upper section and the lower section, and the vacuum box is connected to a vacuum pump, a scraper is provided beside the driving roller, a lower hopper is provided above the filtering section, a cleaning roller is provided on the return section, and a spray assembly is provided beside the cleaning roller.

[0008] Furthermore, the cleaning drum comprises a cylinder body, a brush is arranged on the cylinder body along the circumference of the cylinder body, a transmission shaft is arranged in the middle of the cylinder body, and the transmission shaft is connected to the driving motor.

[0009] Furthermore, the spray mechanism includes an upper layer of pipes and a lower layer of pipes, the upper layer of pipes are connected to the lower layer of pipes through a connecting pipe, the upper layer of pipes and the lower layer of pipes are both connected to a water inlet flange, the lower portion of the upper layer of pipes is connected to a plurality of upper nozzles, the upper portion of the lower layer of pipes is connected to a plurality of lower nozzles, the lower nozzles are evenly distributed on the lower layer of pipes, and the return section is located between the upper nozzle and the lower nozzle.

[0010] Furthermore, the connecting pipe is also connected to a side pipe, and the side pipe is connected to a side nozzle.

[0011] Furthermore, a pressure roller is arranged on the filtering section.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] 1. The utility model comprises a frame, a driving roller is installed on the frame, a driven roller is installed on the side of the frame away from the driving roller, a rubber belt is sleeved on the driving roller and the driven roller, the rubber belt comprises an upper section located on the upper part of the driving roller and a lower section located on the lower part of the driving roller, a filter cloth module is also arranged on the frame, the filter cloth module comprises a plurality of rollers and filter cloths, the filter cloth comprises a filtering section located on the upper part of the driving roller and a return section located on the lower part of the driving roller, the lower surface of the filtering section is in contact with the upper section, a water outlet is opened on the rubber belt, a vacuum box is arranged between the upper section and the lower section, the vacuum box is connected to a vacuum pump, a scraper is arranged beside the driving roller, a lower hopper is arranged above the filtering section, a cleaning roller is arranged on the return section, and a spray assembly is arranged beside the cleaning roller.

[0014] Through this arrangement, the slurry to be filtered falls into the filtering section of the filter cloth through the lower hopper, and the liquid in the slurry is vacuum-absorbed into the vacuum box during the movement of the filtering section, thereby realizing solid-liquid separation, and the filter residue is scraped off the filter cloth when it is transported to the scraper. By arranging a cleaning drum and a spray assembly in the return section of the filter cloth, the fine particles remaining on the filter cloth are cleaned by combining brushing and flushing, which greatly improves the cleaning effect of the filter cloth, avoids the residue on the filter cloth clogging the filter holes and affecting the subsequent filtering effect, and effectively solves the problem of insufficient cleaning of the existing belt vacuum filter cloth, resulting in low filtering efficiency of the filter cloth.

[0015] 2. In the utility model, the cleaning drum includes a cylinder, a brush is arranged on the cylinder along the circumference of the cylinder, a transmission shaft is arranged in the middle of the cylinder, and the transmission shaft is connected to a driving motor. Through this arrangement, the driving motor drives the transmission shaft to rotate, and then drives the cylinder to rotate, and the brush on the cylinder can brush the filter cloth to remove the residue on the filter cloth.

[0016] 3. In the utility model, the spray mechanism includes an upper layer pipe and a lower layer pipe, the upper layer pipe is connected to the lower layer pipe through a connecting pipe, the upper layer pipe and the lower layer pipe are both connected to a water inlet flange, the lower part of the upper layer pipe is connected to a plurality of upper nozzles, the upper nozzles are evenly distributed on the upper layer pipe, the upper part of the lower layer pipe is connected to a plurality of lower nozzles, the lower nozzles are evenly distributed on the lower layer pipe, and the return section is located between the upper nozzle and the lower nozzle. Through this arrangement, the spray water is introduced from the water inlet flange, the spray water enters the upper layer pipe and the lower layer pipe, and finally sprayed out from the upper nozzle and the lower nozzle, thereby realizing the flushing of the upper and lower surfaces of the filter cloth, greatly improving the efficiency of removing residues on the filter cloth.

[0017] 4. In the utility model, the connecting pipe is also connected to a side pipe, and the side pipe is connected to a side nozzle. With this arrangement, the side nozzle can spray water in the horizontal direction of the filter cloth to clean the dead corners that cannot be covered by the upper nozzle and the lower nozzle, further improving the efficiency of removing residues on the filter cloth.

[0018] 5. In the utility model, a pressure roller is arranged on the filter section. Through this arrangement, the pressure roller can press down the filter section of the filter cloth, so that the filter cloth and the upper section of the rubber belt are reliably attached. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the cleaning drum of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the spray assembly of the utility model;

[0023] Markings in the figure: 1-frame, 2-driving roller, 3-driven roller, 4-rubber belt, 41-upper section, 42-lower section, 5-roller, 6-filter cloth, 61-filter section, 62-recovery section, 7-vacuum box, 8-scraper, 9-lower hopper, 10-cleaning drum, 101-cylinder, 102-brush, 103-drive shaft, 11-spray assembly, 111-upper layer pipe, 112-lower layer pipe, 113-connecting pipe, 114-water inlet flange, 115-upper nozzle, 116-lower nozzle, 117-side pipe, 118-side nozzle, 12-pressing roller. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only simplified descriptions for the convenience of describing the present utility model, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The filter press as claimed in claim 1, wherein the driving roller is installed on the frame, and a driven roller is installed on the side of the frame away from the driving roller, and a rubber belt is sleeved on the driving roller and the driven roller, and the rubber belt comprises an upper section located on the upper part of the driving roller and a lower section located on the lower part of the driving roller. The filter cloth module is also provided on the frame, and the filter cloth module comprises a plurality of rollers and filter cloths, and the filter cloths are sleeved on the plurality of rollers, and the filter cloths comprise a filtering section located on the upper part of the driving roller and a return section located on the lower part of the driving roller, and the lower surface of the filtering section is in contact with the upper section, and a water outlet is provided on the rubber belt, a vacuum box is provided between the upper section and the lower section, and the vacuum box is connected to a vacuum pump, a scraper is provided beside the driving roller, a lower hopper is provided above the filtering section, a cleaning roller is provided on the return section, and a spray assembly is provided beside the cleaning roller.

[0031] Furthermore, the cleaning drum comprises a cylinder body, a brush is arranged on the cylinder body along the circumference of the cylinder body, a transmission shaft is arranged in the middle of the cylinder body, and the transmission shaft is connected to the driving motor.

[0032] Furthermore, the spray mechanism includes an upper layer of pipes and a lower layer of pipes, the upper layer of pipes are connected to the lower layer of pipes through a connecting pipe, the upper layer of pipes and the lower layer of pipes are both connected to a water inlet flange, the lower portion of the upper layer of pipes is connected to a plurality of upper nozzles, the upper portion of the lower layer of pipes is connected to a plurality of lower nozzles, the lower nozzles are evenly distributed on the lower layer of pipes, and the return section is located between the upper nozzle and the lower nozzle.

[0033] Furthermore, the connecting pipe is also connected to a side pipe, and the side pipe is connected to a side nozzle.

[0034] Furthermore, a pressure roller is arranged on the filtering section.

[0035] The utility model discloses a kind of cleaning method, and the cleaning effect of filter cloth is improved greatly, and the filter cloth of existing belt type vacuum filter is improved effectively, and the cleaning effect of filter cloth is improved greatly, and the filter cloth of existing belt type vacuum filter is improved effectively, and the cleaning effect of filter cloth is improved greatly, and the filter cloth of existing belt type vacuum filter is improved effectively, and the cleaning effect of filter cloth is improved greatly, and the filter cloth of existing belt type vacuum filter is improved effectively, and the cleaning effect of filter cloth is improved greatly, and the cleaning effect of filter cloth is improved greatly, and the cleaning effect of filter cloth is improved effectively ...

[0036] Specifically, the cleaning drum includes a cylinder, a brush is arranged on the cylinder along the circumference of the cylinder, a transmission shaft is arranged in the middle of the cylinder, and the transmission shaft is connected to a driving motor. Through this arrangement, the driving motor drives the transmission shaft to rotate, and then drives the cylinder to rotate, and the brush on the cylinder can brush the filter cloth to remove the residue on the filter cloth.

[0037] Specifically, the spray mechanism includes an upper layer pipe and a lower layer pipe, the upper layer pipe is connected to the lower layer pipe through a connecting pipe, the upper layer pipe and the lower layer pipe are both connected to a water inlet flange, the lower portion of the upper layer pipe is connected to a plurality of upper nozzles, the upper nozzles are evenly distributed on the upper layer pipe, the upper portion of the lower layer pipe is connected to a plurality of lower nozzles, the lower nozzles are evenly distributed on the lower layer pipe, and the return section is located between the upper nozzle and the lower nozzle. Through this arrangement, spray water is introduced from the water inlet flange, the spray water enters the upper layer pipe and the lower layer pipe, and finally sprayed out from the upper nozzle and the lower nozzle, thereby realizing the flushing of the upper and lower surfaces of the filter cloth, greatly improving the efficiency of removing residues on the filter cloth.

[0038] Preferably, the connecting pipe is further connected to a side pipe, and the side pipe is connected to a side nozzle. With this arrangement, the side nozzle can spray water in the horizontal direction of the filter cloth to clean the dead corners that cannot be covered by the upper nozzle and the lower nozzle, further improving the efficiency of removing residues on the filter cloth.

[0039] Preferably, a pressing roller is arranged on the filtering section. Through this arrangement, the pressing roller can press down the filtering section of the filter cloth, so that the filter cloth and the upper section of the rubber belt are reliably attached.

[0040] Example 1

[0041] The filter press as claimed in claim 1, wherein the driving roller is installed on the frame, and a driven roller is installed on the side of the frame away from the driving roller, and a rubber belt is sleeved on the driving roller and the driven roller, and the rubber belt comprises an upper section located on the upper part of the driving roller and a lower section located on the lower part of the driving roller. The filter cloth module is also provided on the frame, and the filter cloth module comprises a plurality of rollers and filter cloths, and the filter cloths are sleeved on the plurality of rollers, and the filter cloths comprise a filtering section located on the upper part of the driving roller and a return section located on the lower part of the driving roller, and the lower surface of the filtering section is in contact with the upper section, and a water outlet is provided on the rubber belt, a vacuum box is provided between the upper section and the lower section, and the vacuum box is connected to a vacuum pump, a scraper is provided beside the driving roller, a lower hopper is provided above the filtering section, a cleaning roller is provided on the return section, and a spray assembly is provided beside the cleaning roller.

[0042] Through this arrangement, the slurry to be filtered falls into the filtering section of the filter cloth through the lower hopper, and the liquid in the slurry is vacuum-absorbed into the vacuum box during the movement of the filtering section, thereby realizing solid-liquid separation, and the filter residue is scraped off the filter cloth when it is transported to the scraper. By arranging a cleaning drum and a spray assembly in the return section of the filter cloth, the fine particles remaining on the filter cloth are cleaned by combining brushing and flushing, which greatly improves the cleaning effect of the filter cloth, avoids the residue on the filter cloth clogging the filter holes and affecting the subsequent filtering effect, and effectively solves the problem of insufficient cleaning of the existing belt vacuum filter cloth, resulting in low filtering efficiency of the filter cloth.

[0043] Example 2

[0044] On the basis of Example 1, the cleaning drum comprises a cylinder, a brush is arranged on the cylinder along the circumference of the cylinder, a transmission shaft is arranged in the middle of the cylinder, and the transmission shaft is connected to a driving motor. Through this arrangement, the driving motor drives the transmission shaft to rotate, and then drives the cylinder to rotate, and the brush on the cylinder can brush the filter cloth to remove the residue on the filter cloth.

[0045] Example 3

[0046] On the basis of the above embodiment, the spray mechanism includes an upper layer pipe and a lower layer pipe, the upper layer pipe is connected to the lower layer pipe through a connecting pipe, the upper layer pipe and the lower layer pipe are both connected to a water inlet flange, the lower part of the upper layer pipe is connected to a plurality of upper nozzles, the upper nozzles are evenly distributed on the upper layer pipe, the upper part of the lower layer pipe is connected to a plurality of lower nozzles, the lower nozzles are evenly distributed on the lower layer pipe, and the return section is located between the upper nozzle and the lower nozzle. Through this arrangement, the spray water is introduced from the water inlet flange, the spray water enters the upper layer pipe and the lower layer pipe, and finally sprayed out from the upper nozzle and the lower nozzle, thereby realizing the flushing of the upper and lower surfaces of the filter cloth, greatly improving the efficiency of removing residues on the filter cloth.

[0047] Example 4

[0048] On the basis of the above embodiment, the connecting pipe is further connected to a side pipe, and the side pipe is connected to a side nozzle. With this arrangement, the side nozzle can spray water in the horizontal direction of the filter cloth to clean the dead corners that cannot be covered by the upper nozzle and the lower nozzle, further improving the efficiency of removing residues on the filter cloth.

[0049] Example 5

[0050] On the basis of the above embodiment, a pressing roller is arranged on the filtering section. Through this arrangement, the pressing roller can press down the filtering section of the filter cloth, so that the filter cloth and the upper section of the rubber belt are reliably attached.

[0051] Example 2

[0052] The above is the embodiment of the utility model. The above is the preferred embodiment of the utility model. If the preferred implementation methods in each preferred embodiment are not obviously self-contradictory or based on a preferred implementation method, each preferred implementation method can be arbitrarily superimposed and used in combination. The embodiments and specific parameters in the embodiments are only for the purpose of clearly describing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model. The patent protection scope of the utility model is still subject to its claims. All equivalent changes made using the specification of the utility model should be included in the protection scope of the utility model.

Claims

1. A belt vacuum filter, characterized in that: The invention comprises a frame (1), wherein a driving roller (2) is mounted on the frame (1), a driven roller (3) is mounted on the side of the frame (1) away from the driving roller (2), a rubber belt (4) is sleeved on the driving roller (2) and the driven roller (3), the rubber belt (4) comprises an upper section (41) located above the driving roller (2) and a lower section (42) located below the driving roller (2), and a filter cloth module is also arranged on the frame (1), the filter cloth module comprises a plurality of rollers (5) and a filter cloth (6), the filter cloth (6) is sleeved on the plurality of rollers (5), and the filter cloth (6) comprises a plurality of rollers (5) and a plurality of filter cloths (6) located above the driving roller (2). 2) a filtering section (61) at the top and a return section (62) located at the bottom of the driving roller (2), the lower surface of the filtering section (61) being in contact with the upper section (41), a water outlet being provided on the rubber belt (4), a vacuum box (7) being provided between the upper section (41) and the lower section (42), the vacuum box (7) being connected to a vacuum pump, a scraper (8) being provided next to the driving roller (2), a lower hopper (9) being provided above the filtering section (61), a cleaning roller (10) being provided on the return section (62), and a spray assembly (11) being provided next to the cleaning roller (10).

2. A belt vacuum filter according to claim 1, characterized in that: The cleaning roller (10) comprises a cylinder (101), a brush (102) is arranged on the cylinder (101) along the circumference of the cylinder (101), a transmission shaft (103) is arranged in the middle of the cylinder (101), and the transmission shaft (103) is transmission-connected to a driving motor.

3. A belt vacuum filter according to claim 1, characterized in that: The spray assembly (11) comprises an upper layer pipe (111) and a lower layer pipe (112); the upper layer pipe (111) and the lower layer pipe (112) are connected via a connecting pipe (113); the upper layer pipe (111) and the lower layer pipe (112) are both connected to a water inlet flange (114); the lower portion of the upper layer pipe (111) is connected to a plurality of upper nozzles (115); the upper portion of the lower layer pipe (112) is connected to a plurality of lower nozzles (116); the lower nozzles (116) are evenly distributed on the lower layer pipe (112); and the return section (62) is located between the upper nozzle (115) and the lower nozzle (116).

4. A belt vacuum filter according to claim 3, characterized in that: The connecting pipe (113) is also connected to a side pipe (117), and the side pipe (117) is connected to a side nozzle (118).

5. A belt vacuum filter according to claim 1, characterized in that: A pressing roller (12) is provided on the filtering section (61).

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