阅读说明：本技术 一种立盘过滤机清理装置 (Cleaning device for vertical disc filter ) 是由 高敏 牛家兴 姚志伟 李萌 于 2021-09-24 设计创作，主要内容包括：本发明涉及立盘过滤机清理装置,包括多个设置在立盘过滤机的槽体上的刮料机构,刮料机构分别位于立盘过滤机的滤盘的两侧,主要由竖直固定于槽体上端的中心转轴与转动安装在转轴上两个刮刀组件构成；刮刀组件包括刮刀安装座、滑轮、顶盘轮与刮刀,刮刀安装座转动安装于中心转轴上且中心转轴与刮刀安装座之间设有扭簧,滑轮转动装配于刮刀安装座下侧,与所述槽体滚动配合,顶盘轮的轮面与滤盘滚动配合并与滤盘相抵,用于受到滤盘顶抵作用带动刮刀安装座与刮刀绕中心转轴偏转；本发明中的刮刀能够随滤盘偏移,在将滤渣清理干净的同时不划伤滤布,减少停机维护次数,解决现有技术中因频繁维护滤布导致的维护成本高、设备生产效率低的问题。(The invention relates to a cleaning device of a vertical disc filter, which comprises a plurality of scraping mechanisms arranged on a tank body of the vertical disc filter, wherein the scraping mechanisms are respectively positioned at two sides of a filter disc of the vertical disc filter and mainly comprise a central rotating shaft vertically fixed at the upper end of the tank body and two scraper assemblies rotatably arranged on the rotating shaft; the scraper component comprises a scraper mounting seat, a pulley, a top disc wheel and a scraper, the scraper mounting seat is rotatably mounted on the central rotating shaft, a torsional spring is arranged between the central rotating shaft and the scraper mounting seat, the pulley is rotatably assembled at the lower side of the scraper mounting seat and is in rolling fit with the groove body, the wheel surface of the top disc wheel is in rolling fit with the filter disc and is abutted against the filter disc, and the scraper mounting seat and the scraper are driven to deflect around the central rotating shaft under the abutting action of the filter disc; the scraper can deviate along with the filter disc, filter residues are cleaned, meanwhile, filter cloth is not scratched, the shutdown maintenance frequency is reduced, and the problems that in the prior art, the maintenance cost is high and the production efficiency of equipment is low due to frequent maintenance of the filter cloth are solved.)

1. A cleaning device of a vertical disc filter is characterized by comprising a plurality of scraping mechanisms arranged on a tank body of the vertical disc filter, wherein the scraping mechanisms are respectively positioned on two sides of a filter disc of the vertical disc filter and mainly comprise a central rotating shaft vertically fixed at the upper end of the tank body and two scraper assemblies rotatably arranged on the central rotating shaft; the axis of the central rotating shaft and the central axis corresponding to the filter disc are positioned on the same plane, the scraper component comprises a scraper mounting seat, a pulley, a top disc wheel and a scraper, the scraper mounting seat is rotatably mounted on the central rotating shaft, a torsional spring is arranged between the central rotating shaft and the scraper mounting seat, and the scraper is fixed on the scraper mounting seat and extends obliquely upwards towards the filter disc from bottom to top;

the top plate wheel is rotatably assembled on the scraper mounting seat and faces one side of the filter disc, the pulley is rotatably assembled on the lower side of the scraper mounting seat and is in rolling fit with the groove body, the wheel surface of the top plate wheel is in rolling fit with the filter disc and is abutted against the filter disc, the top plate wheel is used for driving the scraper mounting seat to deflect around the central rotating shaft with the scraper under the action of abutting against the filter disc, and the torsion spring is used for providing elastic force for enabling the scraper assembly to tightly abut against the filter disc.

2. A cleaning apparatus for a vertical disc filter as claimed in claim 1, wherein the upper end of the tank body is provided with an arc-shaped groove, and the pulley is located inside the arc-shaped groove and is in rolling fit with the bottom of the arc-shaped groove.

3. The cleaning device for the vertical disc filter as claimed in claim 2, further comprising a plurality of piezoelectric switches and alarm lamps, wherein the piezoelectric switches are connected with the alarm lamps in a one-to-one correspondence manner, and the piezoelectric switches are arranged on the side walls at the two ends of the arc-shaped groove of the groove body and used for being switched on under the action of the pressure of the pulley to start the alarm lamps to alarm.

Technical Field

The invention relates to the technical field of solid-liquid separation equipment, in particular to a cleaning device of a vertical disc filter.

Background

The vertical disc filter forms pressure difference on two sides of the filter cloth by means of the air suction effect of the vacuum pump, and solid-phase particles in the slurry are left on the filter cloth to form a filter cake, so that the aim of solid-liquid separation is fulfilled. Generally, after the filter cloth is used for a period of time, the air permeability and the water permeability are greatly reduced, in order to ensure the filtering effect, the filter cloth is generally required to be stopped, cleaned or replaced, time and labor are consumed, the maintenance cost is high, and the production efficiency is lower.

Disclosure of Invention

The invention aims to provide a cleaning device for a vertical disc filter, which can solve the problems of high maintenance cost and low equipment production efficiency of the vertical disc filter in the prior art due to frequent maintenance of filter cloth.

The invention provides the following technical scheme: a cleaning device of a vertical disc filter comprises a plurality of scraping mechanisms arranged on a tank body of the vertical disc filter, wherein the scraping mechanisms are respectively positioned on two sides of a filter disc of the vertical disc filter and mainly comprise a central rotating shaft vertically fixed at the upper end of the tank body and two scraper assemblies rotatably arranged on the central rotating shaft; the axis of the central rotating shaft and the central axis corresponding to the filter disc are positioned on the same plane, the scraper component comprises a scraper mounting seat, a pulley, a top disc wheel and a scraper, the scraper mounting seat is rotatably mounted on the central rotating shaft, a torsional spring is arranged between the central rotating shaft and the scraper mounting seat, and the scraper is fixed on the scraper mounting seat and extends obliquely upwards towards the filter disc from bottom to top;

the top plate wheel is rotatably assembled on the scraper mounting seat and faces one side of the filter disc, the pulley is rotatably assembled on the lower side of the scraper mounting seat and is in rolling fit with the groove body, the wheel surface of the top plate wheel is in rolling fit with the filter disc and is abutted against the filter disc, the top plate wheel is used for driving the scraper mounting seat to deflect around the central rotating shaft with the scraper under the action of abutting against the filter disc, and the torsion spring is used for providing elastic force for enabling the scraper assembly to tightly abut against the filter disc.

Has the advantages that: the cleaning device for the vertical disc filter comprises a vertical disc filter, a filter disc, a scraper, a top disc wheel, a scraper mounting seat, a central rotating shaft, a scraper assembly, a scraper mounting seat, a central rotating shaft, a groove body and a scraper assembly, wherein the filter disc of the vertical disc filter rotates relative to the groove body, the scraper in the scraper assembly can clean filter residues on filter cloth; when the scraper rotates around the central rotating shaft, the offset of the scraper relative to the groove body in the radial direction of the filter disc is gradually increased from inside to outside and corresponds to the offset change of each part of the filter disc, the scraper is constantly parallel to the filter disc, the filter cloth is protected from being damaged when the filter residue is scraped, the frequency of stopping to maintain the filter cloth can be greatly reduced by the online cleaning function, the service life of the filter cloth is prolonged, time and labor are saved, the production efficiency is improved, and meanwhile, the maintenance cost is reduced.

Further, the upper end of the groove body is provided with an arc-shaped groove, and the pulley is located inside the arc-shaped groove and is in rolling fit with the bottom of the arc-shaped groove.

Has the advantages that: the both ends of the arc-shaped groove can play the role of limiting the movement of the pulley, so that the pulley is prevented from being separated from the upper end of the groove body, and the pulley is ensured to stably roll in the arc-shaped groove.

Further, founding dish filter cleaning device still includes piezoelectric switch and alarm lamp, piezoelectric switch is equipped with a plurality ofly and is connected with the alarm lamp one-to-one, and piezoelectric switch sets up on the lateral wall at the arc wall both ends of cell body for receive the pulley pressure effect and switch on in order to start the alarm lamp and report to the police.

Has the advantages that: piezoelectric switch and alarm lamp combination can realize filter disc offset limit alarming function, and the operator in time learns that the filter disc offset reaches the extreme value according to the alarm lamp to discover that the filter disc operates unusually, inspect and maintain at once, equipment security is better.

Drawings

FIG. 1 is a partial schematic view of a cleaning apparatus of a vertical disk filter according to an embodiment 1 of the present invention in a use state;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a partial schematic view of the cleaning apparatus of the vertical disk filter of the embodiment 1 of the present invention at another viewing angle in a use state;

FIG. 4 is a schematic view of a tank at an arc-shaped tank in the embodiment 1 of the cleaning device of a vertical disk filter of the present invention;

reference numerals: 1-a filter disc; 2-a groove body; 3-a central rotating shaft; 4-a scraper assembly; 5-scraper mounting seat; 6-a scraper; 7-a top plate wheel; 8-a pulley; 9-an arc-shaped groove; 10-torsion spring; 11-piezoelectric switch.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

The invention relates to a cleaning device of a vertical disc filter, which comprises the following specific embodiments in 1:

as shown in fig. 1-2, the invention comprises a plurality of scraping mechanisms arranged on the tank body of the vertical disc filter, as shown in fig. 3, the scraping mechanisms are respectively positioned at two sides of the filter disc 1 of the vertical disc filter and mainly comprise a central rotating shaft 3 and two scraper assemblies 4 rotatably assembled on the central rotating shaft 3, wherein the central rotating shaft 3 is vertically fixed on the tank body 2 of the vertical disc filter, and the axial line of the central rotating shaft 3 and the central axial line corresponding to the filter disc 1 are positioned on the same plane and are mutually vertical.

The doctor assembly 4 includes a doctor mount 5, a doctor blade 6, a pulley 8, and a top disk wheel 7. The length of the scraper mounting seat 5 extends along the radial direction of the filter disc 1, and the scraper 6 is fixedly arranged on the scraper mounting seat 5 and extends upwards from bottom to top towards the filter disc 1 in an inclined mode for cleaning filter residues on the surface of the filter disc. One end of the scraper mounting seat 5 close to the radial inner side of the filter disc is rotatably mounted on the central rotating shaft 3, and a torsion spring 10 is connected between the scraper mounting seat 5 and the central rotating shaft 3. The pulley 8 and the top disk wheel 7 are rotatably arranged at one end of the scraper mounting seat 5 close to the radial outer side of the filter disk, wherein the pulley 8 is rotatably assembled at the lower side of the scraper mounting seat 5 and is in rolling fit with the groove body 2 positioned at the lower side of the scraper mounting seat 5; the top disk wheel 7 is rotatably assembled on one side surface of the scraper mounting seat 5 facing the filter disk, and the top disk wheel 7 is in rolling fit with the filter disk 1 while the wheel surface is propped against the filter disk 1. Axial offset can take place at filter disc 1 rotation in-process, and filter disc 1 supports and presses top plate wheel 7, promotes scraper mount pad 5 and overcomes the torsional spring effort and rotates around central pivot 3, and when the filter disc resets or takes place the skew to opposite direction, scraper mount pad 5 keeps top plate wheel 7 and the state that filter disc 1 offseted under the elastic force effect that torsional spring 10 provided.

As shown in fig. 2-4, an arc-shaped groove 9 for the pulley 8 to extend into is arranged on the tank body 2, the pulley 8 is in rolling fit with the bottom of the arc-shaped groove 9, two ends of the arc-shaped groove 9 are blocked, two side faces of the two ends are respectively used for limiting the movement of the pulley 8, a piezoelectric switch 11 is arranged on the side walls of the two ends of the arc-shaped groove 9, the piezoelectric switch 11 and an alarm lamp are connected in series to form an alarm circuit, and an external power supply supplies power to the alarm circuit. In the invention, a plurality of piezoelectric switches 11 are arranged in total and are in one-to-one correspondence with the alarm lamps, the piezoelectric switches 11 are normally open switches, when the pulley 8 moves to two ends of the arc-shaped groove 9, namely the extreme position of the movement of the pulley, the piezoelectric switches 11 are triggered to be closed, the alarm lamps are started to give an alarm, the abnormal offset of the filter disc can be reminded in time, and the follow-up maintenance is convenient.

The cleaning device of the vertical disc filter can not only simply carry out online cleaning, but also comprises two scraper assemblies which are rotatably assembled on the central rotating shaft, the scraper assemblies can offset along with the filter disc, the offset change trends of the scraper assemblies and the filter disc in the radial direction of the filter disc are the same, the scraper assemblies and the filter disc are gradually increased from inside to outside, the structural arrangement is ingenious, and the scraper and the filter disc are ensured to be kept parallel as much as possible. The scraper is guaranteed to have enough cleanliness, meanwhile, the scraper does not scratch filter cloth, the online cleaning effect is good, the filter cloth can be cleaned in the using process, the service life of the filter cloth can be prolonged, the filter cloth maintenance frequency is greatly reduced, time and labor are saved, and the technical problems of high maintenance cost and low production efficiency caused by filter cloth shutdown maintenance are solved.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.