Candle type filtering device

Abstract

The utility model provides a candle type filtering device, which belongs to the technical field of filtering and comprises a filter shell and a fixing plate arranged at the upper end of an inner cavity of the filter shell, a plurality of fixing cylinders are arranged on the fixing plate, filter cloth is arranged at the lower ends of the fixing cylinders, and water purifying pipes are arranged at the axes of the fixing cylinders. The lower ends of the filter cloth are fixedly connected with the step faces of the lower ends of coaxial water purification pipes, a water drainage pipe is arranged at the upper end of the filter shell, the liquid outlet ends of the water purification pipes are communicated with the water drainage pipe, and cleaning mechanisms used for cleaning the water purification pipes are arranged on the water purification pipes. The cleaning mechanism comprises a plurality of arc-shaped top plates which are connected to the upper end of the outer arc surface of the water purification pipe in a sliding mode, and a back-flushing assembly used for back-flushing the filter cloth is further arranged at the upper end of the filter shell. According to the utility model, the cleaning mechanism and the backflushing assembly are coordinated and matched, so that sediments at two ends of the filter cloth can be effectively cleaned, the filter cake cleaning effect of the candle type filter device is improved, and the candle type filter device can be cleaned in all directions.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter technical field, concretely relates to a candle type filter device. BACKGROUND

[0002] Candle type filter is a common solid-liquid separation technology, mainly used for removing solid particles or suspended solids in liquid, this filtering method is named as "candle type filter" because its structure is similar to candle;

[0003] The existing candle type filter device usually adopts the traditional compressed gas cleaning mode, the filter cloth is deformed when the compressed gas is used, thereby the filter cake on the filter cloth surface is cleaned down, although the cleaning can be realized, but after the part of filter cake of filter cloth falls through the air, the compressed gas will be discharged through these parts which have been cleaned, which leads to that the deformation coefficient of other parts, especially the both ends of filter cloth, is small, so that the filter cake in these areas is difficult to be effectively removed, thereby the overall cleaning effect is affected. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a candle type filter device, can effectively remove the deposits at both ends of filter cloth through the coordination of cleaning mechanism and backflushing assembly, improve the effect of cleaning filter cake of candle type filter device, the double cleaning of compressed gas and mechanical vibration greatly improves the cleaning effect of candle type filter device, and the candle type filter device can be cleaned in all directions.

[0005] In order to solve the above technical problems, the utility model provides a candle type filter device, including filter shell and the fixed plate of setting in its inner chamber upper end, be equipped with a plurality of fixed cylinder on the fixed plate, the lower end of fixed cylinder all is equipped with filter cloth, the axial center of fixed cylinder all is equipped with water purification pipe, the lower end of filter cloth all with the water purification pipe lower end step surface of same axial center is fixedly connected, the upper end of filter shell is equipped with drain pipe, the liquid outlet of water purification pipe all with drain pipe is linked together, all be equipped with the cleaning mechanism for cleaning water purification pipe on water purification pipe, the cleaning mechanism includes a plurality of arc top plates that are respectively slidingly connected to the outer arc surface upper end of water purification pipe, the upper end of filter shell still is equipped with backflushing assembly for backflushing filter cloth, namely can effectively remove the deposits at both ends of filter cloth, improve the effect of cleaning filter cake of candle type filter device, and the candle type filter device can be cleaned in all directions.

[0006] The cleaning mechanism further includes grooves respectively provided near each arc top plate on the outer arc surface of the water purification pipe, springs are respectively provided between each arc top plate and the groove in which it is located, and the springs are movably sleeved with the outer rod bodies of the adjacent arc top plates on the same side, thereby providing elastic support for the arc top plates.

[0007] The cleaning mechanism further comprises rotating cylinders rotatably connected between the drain pipe and the clean water pipe, and the rotating cylinders are both provided with an oval plate at two ends thereof, and the two ends of the oval plate are both matched with the inner side end of the adjacent arc-shaped top plate on the same side, that is, the oval plate serves as a top driving arc-shaped top plate.

[0008] The cleaning mechanism further comprises rotating wheels rotatably connected to the inner side end of the arc-shaped top plate, and the oval plate is slidably matched with the adjacent rotating wheel on the same side, that is, the friction generated when the oval plate is slidably matched with the rotating wheel can be greatly reduced.

[0009] The driving assembly is used for driving the rotating cylinders to synchronously rotate, and the driving assembly comprises a gear one rotatably connected to the shaft center of the upper end of the filter shell, the outer arc surface of the rotating cylinder is provided with a gear two at the upper end thereof, and the upper end of the filter shell is provided with a motor, and the output shaft of the motor is fixedly connected with the gear one, that is, the motor serves as a fast synchronous driving device.

[0010] The backflushing assembly comprises rotating tubes rotatably connected to the shaft center of the gear two, the rotating tubes are both communicated with the rotating cylinders on the same shaft center, the inner cavity of the filter shell is provided with a shunt pipe at the upper end thereof, the air inlet end of the rotating tube is communicated with the shunt pipe, and the outer arc surface of the rotating cylinder is provided with a plurality of air holes at the lower end thereof, that is, the filter cake on the outer surface of the filter cloth can be effectively removed through the high-speed injection of compressed air, and the filtering efficiency and the cleanliness of the equipment are ensured.

[0011] The motor is electrically connected with an external controller.

[0012] The beneficial effects of the above technical scheme of the utility model are as follows:

[0013] 1, the external controller starts the motor, the output shaft of the motor drives the gear one to rotate, and the gear one drives the rotating cylinder and the oval plate to synchronously rotate through the gear two connected therewith when rotating, when the oval plate is away from the center end and slidably matched with the rotating wheel, the rotating wheel drives the arc-shaped top plate to move outwardly to overcome the elastic force of the spring, at this time, the arc-shaped top plate lifts the two ends of the filter cloth to deform, with the continuous rotation of the oval plate, the center end is separated from the rotating wheel, at this time, the arc-shaped top plate is reset under the action of the spring elastic force, and the process is repeated in the process of the rotation of the oval plate, so that the two ends of the filter cloth are repeatedly driven, thereby the deposits on the two ends of the filter cloth can be effectively removed, the effect of removing the filter cake of the candle filter device is improved, and the candle filter device can be cleaned in all directions.

[0014] 2. The liquid to be filtered is pumped into the filter housing and then filtered through the filter cloth. The filtered clean water flows into the drain pipe through the clean water pipe and is finally discharged through the drain pipe. The filtered impurities are trapped on the outer surface of the filter cloth, forming a filter cake. When the filter cake accumulates to a certain extent after filtration for a period of time and needs to be cleaned, the air pump connection port with a one-way valve is connected to the diversion pipe to ensure that the clean water does not flow back. At the same time, compressed air is allowed to enter the diversion pipe normally. The air pump pumps the compressed air into the diversion pipe, and then it is transmitted into the rotating cylinder through the rotating pipe. It is then ejected through the air hole at the lower end of the outer arc surface of the rotating cylinder to backflush the filter cloth. The high-speed jet of compressed air can effectively remove the filter cake on the outer surface of the filter cloth, ensuring filtration efficiency and equipment cleanliness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a candle-type filter device according to the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is an enlarged structural diagram of section B of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 100, filter housing; 101, fixing plate; 102, fixing cylinder; 103, filter cloth; 104, purified water pipe; 105, drain pipe; 200, arc-shaped top plate; 201, groove; 202, spring; 203, rotating cylinder; 204, elliptical plate; 205, rotating wheel; 300, gear one; 301, gear two; 302, motor; 400, rotating tube; 401, diversion tube; 402, air hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figures 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0021] This embodiment provides a candle filter device, such as Figures 1-4As shown: including filter shell 100 and set in its upper end of the fixed plate 101, the fixed plate 101 is provided with a plurality of fixed cylinder 102, the lower end of the fixed cylinder 102 is provided with filter cloth 103, the fixed cylinder 102 is provided with a water pipe 104 at the axial center, the lower end of the filter cloth 103 is fixedly connected with the lower end step surface of the water pipe 104 with the same axial center, the upper end of the filter shell 100 is provided with a drain pipe 105, the liquid outlet end of the water pipe 104 is communicated with the drain pipe 105, the water pipe 104 is provided with a cleaning mechanism for cleaning the water pipe 104, the cleaning mechanism includes a plurality of arc-shaped top plates 200 which are respectively connected to the outer arc surface of the water pipe 104, the outer arc surface of the water pipe 104 is provided with a rectangular sliding port corresponding to the arc-shaped top plate 200, the upper end of the filter shell 100 is also provided with a backflushing assembly for backflushing the filter cloth 103.

[0022] The liquid to be filtered is pumped into the filter shell 100, then filtered through the filter cloth 103, the filtered clean water flows into the drain pipe 105 through the water pipe 104, and finally discharged through the drain pipe 105, while the filtered impurities are intercepted on the outer surface of the filter cloth 103, forming filter cake, when the filter cake accumulates to a certain extent after a period of time, the arc-shaped top plate 200 reciprocatingly jacks up both ends of the filter cloth 103, so as to effectively remove the deposits at both ends of the filter cloth 103, improve the effect of cleaning the filter cake of the candle filter device, and clean the candle filter device in all directions.

[0023] As shown in Figures 2-3 The cleaning mechanism further includes a groove 201 arranged near each arc-shaped top plate 200 on the outer arc surface of the water pipe 104, the arc-shaped top plate 200 is provided with a spring 202 between the groove 201, the spring 202 is movably sleeved with the outer rod body of the adjacent arc-shaped top plate 200 on the same side, and the spring 202 cooperates with the groove 201 to provide elastic support for the arc-shaped top plate 200.

[0024] As shown in Figures 2-4 The cleaning mechanism further includes a rotating cylinder 203 rotatably connected between the drain pipe 105 and the water pipe 104, the drain pipe 105 and the water pipe 104 are provided with a rotating hole for providing rotating support for the rotating cylinder 203, and the both ends of the rotating cylinder 203 are provided with an oval plate 204, and the both ends of the oval plate 204 are respectively matched with the inner side end of the adjacent arc-shaped top plate 200 on the same side.

[0025] The rotating drum 203 and the elliptical plate 204 rotate synchronously. When the elliptical plate 204 is away from the center end and cooperates with the arc-shaped top plate 200, the arc-shaped top plate 200 moves outwardly against the elastic force of the spring 202. At this time, the arc-shaped top plate 200 lifts the two ends of the filter cloth 103, so that the filter cloth 103 is deformed. With the continuous rotation of the elliptical plate 204, the elliptical plate 204 is separated from the rotating drum 205. At this time, the arc-shaped top plate 200 is reset under the elastic force of the spring 202. This process is repeated during the rotation of the elliptical plate 204, so that the two ends of the filter cloth 103 are repeatedly lifted, thereby effectively removing the deposits at the two ends of the filter cloth 103.

[0026] As shown in Figures 2-3 , the cleaning mechanism further comprises rotating drums 205 rotatably connected to the inner side ends of the arc-shaped top plates 200. The inner side ends of the arc-shaped top plates 200 are each provided with a notch for providing rotational support for the rotating drum 205. The elliptical plate 204 is in sliding cooperation with the adjacent rotating drum 205 on the same side. The design of the rotating drum 205 can greatly reduce the friction generated when the elliptical plate 204 is in sliding cooperation with the rotating drum 205.

[0027] As shown in Figures 1-4 , the cleaning mechanism further comprises a driving assembly for driving the rotating drum 203 to rotate synchronously. The driving assembly comprises a gear one 300 rotatably connected to the upper end of the inner cavity of the filter housing 100. The upper end of the inner cavity of the filter housing 100 is provided with a circular hole for providing rotational support for the gear one 300. The outer arc surface of the rotating drum 203 is provided with a gear two 301 at the upper end. The upper end of the filter housing 100 is provided with a motor 302. The output shaft of the motor 302 is fixedly connected with the gear one 300.

[0028] The motor 302 is started. The output shaft of the motor 302 drives the gear one 300 to rotate. The gear one 300 drives the rotating drum 203 and the elliptical plate 204 to rotate synchronously through the gear two 301 connected therewith, thereby achieving the function of rapid synchronous driving.

[0029] As shown in Figures 1-4 , the backflushing assembly comprises rotating tubes 400 rotatably connected to the shaft centers of the gear two 301. The shaft centers of the gear two 301 are each provided with a through hole for providing rotational support for the rotating tube 400. The rotating tube 400 is in communication with the rotating drum 203 on the same shaft center. The inner cavity of the filter housing 100 is provided with a shunt pipe 401. The shunt pipe 401 is in communication with a connection port of an air pump provided with a one-way valve. The air inlet end of the rotating tube 400 is in communication with the shunt pipe 401. The outer arc surface of the rotating drum 203 is provided with a plurality of air holes 402 at the lower end.

[0030] The air pump connection port with a one-way valve is connected with the shunt pipe 401, which ensures that the clean water cannot flow back, and allows the compressed air to normally enter the shunt pipe 401, the air pump pumps the compressed air into the shunt pipe 401, then is transmitted into the rotating cylinder 203 through the rotating pipe 400, and is sprayed out through the air holes 402 at the lower end of the outer arc surface of the rotating cylinder 203, so as to backflush the filter cloth 103, the high-speed injection of the compressed air can effectively remove the filter cake on the outer surface of the filter cloth 103, ensure the filtering efficiency and the cleanliness of the equipment, and greatly improve the cleaning effect of the candle filter device through the double cleaning of the compressed gas and the mechanical vibration.

[0031] As shown in Figures 1-2 The motor 302 is electrically connected with an external controller.

[0032] The working principle of the candle filter device is as follows: first, the liquid to be filtered is pumped into the filter shell 100, then is filtered through the filter cloth 103, the filtered clean water flows into the drain pipe 105 through the water purification pipe 104, and finally is discharged through the drain pipe 105, and the filtered impurities are intercepted on the outer surface of the filter cloth 103 to form filter cake, when the filter cake accumulates to a certain degree after a period of filtration, the air pump connection port with a one-way valve is connected with the shunt pipe 401, which ensures that the clean water cannot flow back, and allows the compressed air to normally enter the shunt pipe 401, the air pump pumps the compressed air into the shunt pipe 401, then is transmitted into the rotating cylinder 203 through the rotating pipe 400, and is sprayed out through the air holes 402 at the lower end of the outer arc surface of the rotating cylinder 203, so as to backflush the filter cloth 103, the high-speed injection of the compressed air can effectively remove the filter cake on the outer surface of the filter cloth 103, ensure the filtering efficiency and the cleanliness of the equipment, and the external controller starts the motor 302, the output shaft of the motor 302 drives the gear one 300 to rotate, and the gear one 300 drives the rotating cylinder 203 and the elliptical plate 204 to synchronously rotate through the gear two 301 engaged with the gear one 300 when the gear one 300 rotates, when the elliptical plate 204 moves away from the center end and is separated from the rotating wheel 205, the arc-shaped top plate 200 is moved outward by overcoming the elastic force of the spring 202 through the rotating wheel 205, at this time, the arc-shaped top plate 200 is reset under the action of the elastic force of the spring 202, and the process is repeated during the rotation of the elliptical plate 204, so that the two ends of the filter cloth 103 are repeatedly jacked, thereby effectively removing the deposits on the two ends of the filter cloth 103, improving the effect of removing the filter cake of the candle filter device, and the candle filter device can be cleaned in all directions.

[0033] In addition, it needs to be explained that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles described in the present application, a number of improvements and refinements can be made, these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A candle filter apparatus, characterized by: The utility model provides a filter, including filter shell (100) and the fixed plate (101) of setting in its inner chamber upper end, be equipped with a plurality of fixed cylinder (102) on fixed plate (101), the lower end of fixed cylinder (102) is equipped with filter cloth (103) all, the axial center of fixed cylinder (102) is equipped with clean water pipe (104) all, the lower end of filter cloth (103) is fixedly connected with the lower end step surface of clean water pipe (104) of same axial center, the upper end of filter shell (100) is equipped with drain pipe (105), the liquid outlet of clean water pipe (104) all is linked with drain pipe (105) and communicates, be equipped with the cleaning mechanism for the cleaning of clean water pipe (104) all on clean water pipe (104), the cleaning mechanism includes the plurality of arc top plate (200) sliding connection on the outer arc surface upper end of clean water pipe (104) respectively, the upper end of filter shell (100) is equipped with the backflushing assembly for the backflushing of filter cloth (103) still.

2. A candle filter apparatus as claimed in claim 1, characterised in that: The cleaning mechanism further includes grooves (201) disposed near each arc top plate (200) on the outer arc surface of the clean water pipe (104), springs (202) are disposed between the arc top plate (200) and the groove (201) on which the arc top plate (200) is located, and the spring (202) is movably sleeved with the outer rod of the adjacent arc top plate (200) on the same side.

3. A candle filter apparatus as claimed in claim 2, wherein: The cleaning mechanism further includes rotating cylinders (203) rotatably connected between the drain pipe (105) and the clean water pipe (104), and the rotating cylinders (203) are each provided with an oval plate (204) at both ends, and the oval plate (204) is respectively matched with the inner side end of the adjacent arc top plate (200) on the same side.

4. A candle filter apparatus as claimed in claim 3, wherein: The cleaning mechanism further includes rotating wheels (205) rotatably connected to the inner side end of the arc top plate (200), and the oval plate (204) is respectively slidably matched with the adjacent rotating wheel (205) on the same side.

5. A candle filter apparatus as claimed in claim 3, wherein: The utility model further includes a driving assembly for driving the rotating cylinders (203) to rotate synchronously, and the driving assembly includes a gear one (300) rotatably connected to the axial center of the upper end of the inner cavity of the filter shell (100), the outer arc surface upper end of the rotating cylinder (203) is provided with a gear two (301), the upper end of the filter shell (100) is provided with a motor (302), and the output shaft of the motor (302) is fixedly connected with the gear one (300).

6. A candle filter apparatus as claimed in claim 5, characterised in that: The backflushing assembly includes rotating tubes (400) rotatably connected to the axial center of the gear two (301), the rotating tubes (400) are respectively communicated with the rotating cylinders (203) of the same axial center, the inner cavity upper end of the filter shell (100) is provided with a shunt pipe (401), the air inlet end of the rotating tube (400) is communicated with the shunt pipe (401), and the outer arc surface lower end of the rotating cylinder (203) is provided with a plurality of air holes (402).

7. A candle filter apparatus as claimed in claim 5, wherein: The motor (302) is electrically connected with an external controller.

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