CN222566992U - Filter equipment is used in preparation of high activity calcium hydroxide - Google Patents

Abstract

The utility model discloses a filtering device for preparing high-activity calcium hydroxide, which comprises an outer barrel body, wherein a partition plate is arranged in the outer barrel body, the interior of the outer barrel body is partitioned into an upper chamber and a lower chamber by the partition plate, a liquid outlet is arranged on the upper chamber, a liquid inlet is arranged on the lower chamber, a plurality of cylindrical filter cylinders are arranged above the partition plate, an annular flange is arranged at the bottom of the partition plate, liquid inlet holes are formed in the outer periphery of the annular flange, liquid discharge holes are formed in the bottom of the annular flange, the bottom of the cylindrical filter cylinders extends into the annular flange and is communicated with the liquid inlet holes and the liquid discharge holes, a liquid discharge pipe is connected to the bottom of the liquid discharge holes, and the liquid discharge pipe extends outwards through the lower chamber. This scheme is through reverse cleaning operation, can clear up filtering mechanism fast, saves the clearance time to filtering mechanism.

Description

Filter equipment is used in preparation of high activity calcium hydroxide

Technical Field

The utility model belongs to the technical field of calcium hydroxide preparation, and particularly relates to a filtering device for preparing high-activity calcium hydroxide.

Background

The high-activity calcium hydroxide is also called as high-specific surface area calcium hydroxide, and has the characteristics of porosity, high activity, good dispersibility, high utilization rate and the like, and the specific surface area is 2-3 times that of common calcium hydroxide, so that the high-activity calcium hydroxide is widely applied to the flue gas desulfurization industry. When high activity calcium hydroxide is made into slurry, it is necessary to increase the purity by filtration.

The Chinese patent with the application number 2023203019644 discloses a filtering device for preparing high-activity nano calcium hydroxide, which comprises a filtering barrel, wherein a barrel cover is arranged at the upper part of the filtering barrel, the upper part of the barrel cover is fixedly communicated with a feeding pipe, the lower end of the feeding pipe is fixedly communicated with a plurality of feeding branch pipes, the inner wall of the filtering barrel is provided with a filtering barrel, and the bottom of the filtering barrel is fixedly communicated with a discharging pipe.

The filter equipment among the above-mentioned patent scheme inputs the thick liquids of calcium hydrate from the inlet pipe, sprays in filter screen barrel bottom from a plurality of feeding branch pipes, can evenly cover filter screen barrel bottom, realizes evenly down-flow filtration, improves filtration efficiency and filtration quality. But the filter screen is easy to block after long-term use, and although the filter screen in the scheme also has the effect of convenient disassembly and cleaning, manual disassembly and cleaning need to consume more time, and can not be ensured to be cleaned.

Disclosure of utility model

In order to solve the problems, the utility model provides a filtering device for preparing high-activity calcium hydroxide, which comprises an outer barrel body, wherein a partition plate is arranged in the outer barrel body, the inside of the outer barrel body is partitioned into an upper cavity and a lower cavity by the partition plate, a liquid outlet is formed in the upper cavity, a liquid inlet is formed in the lower cavity, a plurality of cylindrical filter cylinders are arranged above the partition plate, an annular flange is arranged at the bottom of the partition plate, liquid inlet holes are formed in the outer periphery of the annular flange, liquid discharge holes are formed in the bottom of the annular flange, the bottom of the cylindrical filter cylinders extends into the annular flange and is communicated with the liquid inlet holes and the liquid discharge holes, a liquid discharge pipe is connected to the bottom of the liquid discharge holes, and the liquid discharge pipe extends outwards through the lower cavity.

Preferably, the cylindrical filter cartridge is internally rotated and is provided with a rotating shaft, the side of the rotating shaft is provided with a scraping plate, the top of the rotating shaft penetrates through the top of the cylindrical filter cartridge to outwards extend and is connected with a driven gear, the top of the outer barrel body is provided with a driving motor, the output end of the driving motor downwards extends to the inner central position of the outer barrel body and is connected with a driving rod, the driving rod is connected with a driving gear, and the driving gear is meshed with the driven gear.

Preferably, the liquid draining pipe comprises a first liquid draining main pipe, a second liquid draining main pipe and a plurality of liquid draining branch pipes, wherein the liquid draining branch pipes are communicated with the first liquid draining main pipe, and the first liquid draining main pipe is in threaded connection with the second liquid draining main pipe.

Preferably, an observation glass port is arranged on the outer barrel body.

Preferably, the liquid outlet is provided with a first electromagnetic valve, the liquid inlet is provided with a second electromagnetic valve, and the second liquid draining main pipe is provided with a third electromagnetic valve.

The utility model has the advantages that:

1. This scheme adopts the division board to divide into cavity and lower cavity with outer staving internal partitioning to be equipped with a plurality of cylindricality cartridge filter, can realize evenly downflow filtration through this kind of design, improve filtration efficiency and filtration quality.

2. According to the scheme, reverse cleaning operation is performed, namely, water for reverse cleaning is filled into a liquid outlet of the upper cavity, and unfiltered calcium hydroxide slurry is reserved in the lower cavity, so that the back flushing cleaning of the cylindrical filter cylinder is realized, the cleaning time of the filtering mechanism is saved, and the influence of impurities on the filtering and purifying of the calcium hydroxide slurry is prevented.

3. This scheme cylindricality cartridge filter internal rotation is equipped with rotation axis and scraper blade, when driving motor starts, drives the rotation axis through driving gear's rotation and rotates, and the rotation axis drives the scraper blade and rotates, can strike off the impurity on the cylindricality cartridge filter inner wall to conveniently realize the clearance to the cylindricality cartridge filter, significantly reduced time and the work load of manual dismantlement clearance, further promoted cleaning efficiency.

Drawings

FIG. 1 is a cross-sectional perspective view of the present utility model.

FIG. 2 is a cross-sectional plan view of the present utility model.

FIG. 3 is a block diagram of the internal filter structure of the present utility model.

Fig. 4 is a diagram of a cylindrical filter cartridge of the present utility model.

Fig. 5 is an external structural view of the present utility model.

In the figure, an outer barrel body, a 2 partition plate, a 3 upper chamber, a 4 lower chamber, a 5 liquid outlet, a 6 liquid inlet, a 7 cylindrical filter cartridge, an 8 annular flange, a 9 liquid inlet, a 10 liquid outlet, an 11 rotary shaft, a 12 scraping plate, a 13 driven gear, a 14 driving motor, a 15 driving rod, a 16 driving gear, a 17 first liquid outlet main pipe, a 18 second liquid outlet main pipe, a 19 liquid outlet branch pipe, a 20 observation glass port, a 21 first electromagnetic valve, a 22 second electromagnetic valve and a 23 third electromagnetic valve are arranged.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly as, for example, "connected" may be fixedly connected, may be detachably connected, or integrally connected, may be mechanically connected or electrically connected, may be directly connected or indirectly connected through an intermediate medium, and may be communication between two elements. Meanwhile, when an element is referred to as being "fixed" or "disposed" on another element, it may be directly on the other element or intervening elements may be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "fixedly connected to" another element, it can be conventionally connected by welding or bolting or gluing. In summary, it will be understood by those of ordinary skill in the art that the specific meaning of the terms described above in this disclosure is to be understood in a specific sense.

Example 1

As shown in fig. 1 to 5, a filtering device for preparing high-activity calcium hydroxide comprises an outer cylinder body 1, wherein an observation glass port 20 is arranged on the outer cylinder body 1 and used for observing the condition inside the whole outer cylinder body. The outer barrel 1 is internally provided with a partition plate 2, the partition plate 2 divides the interior of the outer barrel into an upper cavity 3 and a lower cavity 4, the upper cavity 3 is provided with a liquid outlet 5, the lower cavity 4 is provided with a liquid inlet 6, the liquid outlet 5 is provided with a first electromagnetic valve 21, the liquid inlet 6 is provided with a second electromagnetic valve 22, and the two electromagnetic valves are respectively used for opening and closing the liquid inlet 6 and the liquid outlet 5. The top of division board 2 is equipped with a plurality of cylindricality cartridge filter 7, and a plurality of cylindricality cartridge filter 7 are annular setting, and cylindricality cartridge filter 7 is the tubular structure that the filtration pore was seted up to the surface, and cylindricality cartridge filter 7 can increase filtration area, has improved filtration efficiency. Meanwhile, the cylindrical filter cartridge 7 is compact in structure and occupies a small space.

Referring to fig. 3, the bottom of the partition plate 2 is provided with an annular flange 8, the outer periphery of the annular flange 8 is provided with a liquid inlet hole 9, the bottom of the annular flange 8 is provided with a liquid discharge hole 10, the bottom of the cylindrical filter cartridge extends into the annular flange 8 and is communicated with the liquid inlet hole 9 and the liquid discharge hole 10, the bottom of the liquid discharge hole 10 is connected with a liquid discharge pipe, and the liquid discharge pipe extends outwards through the lower chamber 4. The drain pipe extends outwards through the lower chamber 4, so that the drain operation is more convenient. The bottom of the liquid discharge hole 10 is connected with a liquid discharge pipe, and filtered liquid is timely discharged through the liquid discharge pipe, so that adverse effects caused by accumulation of the liquid in the lower chamber 4 are avoided, and stable operation of the filtering device is ensured.

Referring to fig. 2, the calcium hydroxide slurry first enters from the inlet 6 in the lower chamber, then enters the cylindrical filter cartridge 7 along the inlet 9 in the annular flange 8, is filtered by the cylindrical filter cartridge, and is discharged from the outlet 5 in the upper chamber, and the impurities left after filtration remain in the cylindrical filter cartridge 7. After the filtration is completed, the water for reverse cleaning is poured into the upper cavity from the liquid outlet 5, at this time, the second electromagnetic valve 22 on the liquid inlet 6 in the lower cavity 4 is closed, the cylindrical filter cylinder is backwashed by water flow, impurities on the cylindrical filter cylinder are flushed down and enter the liquid discharge pipe along the liquid discharge hole 10 at the bottom to be discharged, and as the second electromagnetic valve 22 is closed and the unfiltered calcium hydroxide slurry is reserved in the lower cavity 4, the impurities cannot enter the lower cavity 4, even if part of impurities enter, the impurities can also return to the cylindrical filter cylinder in the next filtering operation, and the filtering and purifying of the calcium hydroxide slurry cannot be influenced.

Referring to fig. 4, the cylindrical filter cartridge 7 is rotatably provided with a rotary shaft 11, a scraper 12 is disposed on a side of the rotary shaft 11, a driven gear 13 is connected to the top of the rotary shaft 11 and extends outwards through the top of the cylindrical filter cartridge 7, a driving motor 14 is disposed on the top of the outer cylinder 1, an output end of the driving motor 14 extends downwards to an inner center position of the outer cylinder 1 and is connected with a driving rod 15, a driving gear 16 is connected to the driving rod 15, and the driving gear 16 is meshed with the driven gear 13.

When driving motor 14 drives actuating lever 15 to rotate, drive gear 16 also can drive driven gear 13 rotation to drive the rotation axis 11 in each cylindricality cartridge filter 7 and rotate, rotation axis 11 drives scraper blade 12 and rotates, scrapes the impurity on the cylindricality cartridge filter 7 inner wall and detach, so that the clearance to cylindricality cartridge filter 7 of better realization. The time and the workload of manual disassembly and cleaning are greatly reduced.

Referring to fig. 3, the drain pipe includes a first drain header 17, a second drain header 18, and a plurality of drain branch pipes 19, the plurality of drain branch pipes 19 are communicated with the first drain header 17, and the first drain header 17 is screwed with the second drain header 18. One end of each drain branch 19 is connected to a drain hole 10 in the annular flange 8 for discharging impurities into the first drain header 17 during backwashing. The liquid discharge main is divided into the first liquid discharge main 17 and the second liquid discharge main 18, when the liquid discharge pipeline is blocked or needs to be cleaned, cleaning and maintenance can be carried out only by disassembling the first liquid discharge main 17 and the second liquid discharge main 18, the whole liquid discharge system is not required to be disassembled in a large scale, the maintenance time and the cost are saved, and the blocking problem of the liquid discharge pipeline is effectively solved. The second drain header 18 is of a curved configuration so that the drained liquid forms a smoother flow path within the conduit. Compared with a linear structure, the bending structure can reduce the resistance and friction of liquid in the pipeline, so that the liquid can flow more smoothly, and the liquid discharge efficiency is improved. When the fluid flows in the bent pipeline, the impact and vortex of the fluid are reduced, so that the noise and vibration degree are reduced, and the comfort of the operation environment is improved. The third electromagnetic valve 23 on the second drain pipe 18 is used for controlling the opening and closing of the second drain pipe 18.

In this embodiment, the inner part of the outer barrel body is divided into the upper chamber 3 and the lower chamber 4 by the partition plate 2, and a plurality of cylindrical filter cartridges 7 are provided, so that uniform downflow filtration can be realized by the design, and the filtration efficiency and the filtration quality can be improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A filtering device for preparing highly active calcium hydroxide, characterized in that it comprises an outer cylinder (1), a partition plate (2) is provided inside the outer cylinder (1), the partition plate (2) divides the interior of the outer cylinder (1) into an upper chamber (3) and a lower chamber (4), the upper chamber (3) is provided with a liquid outlet (5), the lower chamber (4) is provided with a liquid inlet (6), a plurality of cylindrical filter cartridges (7) are provided above the partition plate (2), an annular flange (8) is provided at the bottom of the partition plate (2), a liquid inlet hole (9) is provided at the outer periphery of the annular flange (8), a liquid discharge hole (10) is provided at the bottom of the annular flange (8), the bottom of the cylindrical filter cartridge (7) extends into the annular flange (8) and is in communication with the liquid inlet hole (9) and the liquid discharge hole (10), the bottom of the liquid discharge hole (10) is connected to a liquid discharge pipe, and the liquid discharge pipe passes through the lower chamber (4) and extends outward. 2. The filtering device for preparing highly active calcium hydroxide according to claim 1 is characterized in that: a rotating shaft (11) is rotatably provided inside the cylindrical filter cartridge (7), a scraper (12) is provided on the side of the rotating shaft (11), the top of the rotating shaft (11) passes through the top of the cylindrical filter cartridge (7) and extends outward and is connected to a driven gear (13), a driving motor (14) is provided at the top of the outer cylinder (1), the output end of the driving motor (14) extends downward to the inner center position of the outer cylinder (1) and is connected to a driving rod (15), the driving rod (15) is connected to a driving gear (16), and the driving gear (16) is meshed with the driven gear (13). 3. The filtering device for preparing highly active calcium hydroxide according to claim 2, characterized in that: the drainage pipe comprises a first drainage main pipe (17), a second drainage main pipe (18) and a plurality of drainage branch pipes (19), the plurality of drainage branch pipes (19) are connected to the first drainage main pipe (17), and the first drainage main pipe (17) is threadedly connected to the second drainage main pipe (18). 4. The filtering device for preparing highly active calcium hydroxide according to claim 3, characterized in that an observation glass port (20) is provided on the outer cylinder (1). 5. The filtering device for preparing highly active calcium hydroxide according to claim 4, characterized in that: a first solenoid valve (21) is provided on the liquid outlet (5), a second solenoid valve (22) is provided on the liquid inlet (6), and a third solenoid valve (23) is provided on the second liquid discharge main pipe (18).