Rotating disc type micro-filter

Abstract

The utility model discloses a turntable microstrainer, it includes casing, hollow rotating shaft and suction device, suction device includes suction pump and dirt suction box, the dirt suction box is vertically installed above the hollow rotating shaft, suction device also includes the dirt suction box fixing device, the dirt suction box fixing device is equipped with the hollow rotating shaft, the hollow rotating shaft is equipped with the hollow rotating shaft, and the hollow rotating shaft is equipped with the hollow rotating shaft. The sewage suction box fixing device comprises a suspension arm and a sewage suction box fixing plate, the sewage suction box fixing plate is located below the suspension arm, the sewage suction boxes are installed on the side face of the sewage suction box fixing plate and tightly attached to the two sides of the rotary disc, and the suspension arm is hinged to the shell. The sewage suction box is vertically fixed above the hollow rotating shaft, so that the sewage suction device has the advantage of convenience in observation, the sewage suction box is fixed through the suspension arm, the suspension arm is hinged to the shell, the suspension arm is fixed to enable the sewage suction box to be in a vertical state during working, and the sewage suction box is fixed to the hollow rotating shaft when overhaul and maintenance are needed. And the rotating shaft is rotated to an angle convenient for repairing and maintaining the dirt suction box.

Description

Technical Field

[0001] The utility model relates to a microfilter, in particular to a rotary disc type microfilter. Background Art

[0002] With the development of economy, people's living standards are constantly improving. Aquatic products are sought after by people for their nutritious, delicious and healthy value, which greatly promotes the development of breeding industry. Aquaculture mainly includes fish raft breeding and fish pond breeding. Fish pond breeding involves the use and influence of water. In order to ensure the water quality of source water and the compliance and recycling of tail water, people have developed a rotary disc microfiltration machine. The rotary disc microfiltration machine is used to treat the source water for safe use and to treat the tail water for recycling and compliance with discharge standards. The structure of the existing turntable microfilter mainly consists of a box body (or pool body), a hollow shaft, and several turntables installed on the hollow shaft. The turntable is nested on the hollow shaft. The turntable is a hollow turntable, which is composed of a skeleton and a filter cloth surrounding its outer circumference. The cavity of the turntable is connected to the inner cavity of the shaft. The shaft is supported in the box to drive the turntable to rotate. A water inlet is provided on the box, and a water outlet is provided at one end of the hollow shaft (there is also a structure in which water enters from the hollow shaft, flows into the inner cavity of the box after being filtered by the filter disc, and is then discharged from the water outlet on the box). When using a turntable microfilter with this structure, it is necessary to keep the filter cloth clean to ensure the filtering capacity of the filter cloth. In order to keep the filter cloth clean, it is necessary to clean the filter cloth. The prior art uses a suction device for cleaning the filter cloth. The suction device mainly includes a suction pump and a dirt suction box. The dirt suction box of the prior art is horizontally arranged at the plane where the central shaft is located (such as Figure 1 ). This type of suction box arrangement makes it difficult to observe because the suction box is located in the middle of the equipment. In addition, the water in the equipment needs to be drained and the turntable removed during installation and maintenance, which makes it very inconvenient to use and maintain. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a rotary disc type microfilter with a dirt suction box that is easy to install, simple in structure and reasonably arranged.

[0004] A turntable microfilter comprises a shell, a hollow rotating shaft and a suction device, wherein the suction device comprises a suction pump and a dirt suction box, and the structural key points are: the dirt suction box is vertically installed above the hollow rotating shaft, the suction device also comprises a dirt suction box fixing device, the dirt suction box fixing device comprises a suspension arm and a dirt suction box fixing plate, the dirt suction box fixing plate is located below the suspension arm, the dirt suction box is installed on the side of the dirt suction box fixing plate, the dirt suction box is closely attached to the turntable, and the suspension arm is hinged to the shell.

[0005] Since the dirt suction box of the utility model is installed vertically and is located on the upper part of the rotating shaft, it is convenient for the staff to observe its working condition. In addition, when repairing or replacing the parts of the dirt suction box, it is only necessary to rotate the suspension arm upward by a certain angle around the hinge pin axis, and the suspension arm will drive the dirt suction box fixing plate fixed thereon to rotate together, thereby rotating the dirt suction box upward together to realize the maintenance of the dirt suction box, and it is not necessary to drain the water in the equipment, and it is not necessary to remove the turntable, and the related parts of the dirt suction box can be maintained. The structure is simple and the operation is convenient.

[0006] The suspension arm and the dirt suction box fixing plate are an integrated L-shaped structure.

[0007] The hanging arm is hinged on the shell body by providing a supporting groove on the shell body, and the hanging arm is hinged on the two side walls of the supporting groove.

[0008] This type of articulation mode of the boom on the shell ensures that the boom has mobility while also providing limited support to the boom using the support grooves, so that the boom can move within a certain angle range and support the positioning of the boom when the boom is stationary.

[0009] The supporting groove is a U-shaped opening groove.

[0010] The articulation of the boom on the shell is that the boom is articulated on the shell through a hinge seat, and a positioning piece for positioning the boom is also provided between the boom and the shell.

[0011] The positioning member can be a wind hook or a latch and the like.

[0012] The dirt suction box is installed on the dirt suction box fixing plate in such a way that the dirt suction box is pressed against the side of the rotating disk by a spring.

[0013] The suction box is fixed by a spring, and the pressing force between the suction box and the turntable can be conveniently adjusted to ensure that suction can be achieved without damaging the filter cloth.

[0014] The installation of the dirt suction box on the dirt suction box fixing plate is as follows according to the different positions of the dirt suction box:

[0015] When the dirt suction box is between the two turntables, the specific installation is as follows: the two dirt suction boxes are installed on the symmetrical sides of the dirt suction box fixing plate by using connecting pieces, and the two dirt suction boxes can be installed on the connecting pieces movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a through hole, and the sides of the two dirt suction boxes facing the through hole are provided with concave countersunk holes symmetrically arranged on both sides of the through hole at the positions corresponding to the through holes, and the dirt suction device of the turntable microfilter also includes a compression spring, which passes through the through hole on the dirt suction box fixing plate and is placed in the countersunk holes of the two dirt suction boxes.

[0016] The dirt suction device of the turntable microfilter of this structure is suitable for installation between two turntables. The dirt suction box fixing plate is introduced to fix the dirt suction box on both sides of the dirt suction box fixing plate. A connecting piece and a concave countersunk hole that can be moved relative to the dirt suction box fixing plate and a compression spring are used, so that the two dirt suction boxes share a set of fixing devices, thereby greatly simplifying the structure, saving installation space, and greatly increasing the number of turntables that can be installed per unit shaft length, thereby greatly improving the output of the turntable microfilter.

[0017] When the dirt suction box is on the outer side of the turntable at the end, its specific installation is as follows: the dirt suction box is installed on one side of the dirt suction box fixing plate by a connecting piece, and the dirt suction box can be installed on the connecting piece movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a concave countersunk hole, and the dirt suction box is also provided with a concave countersunk hole at the corresponding position of the side of the dirt suction box facing the concave countersunk hole of the dirt suction box fixing plate, and the dirt suction device of the turntable microfilter also includes a compression spring, and the compression spring is placed in the two corresponding countersunk holes of the dirt suction box and the dirt suction box fixing plate.

[0018] In summary, the utility model has the following advantages over the prior art:

[0019] The utility model has the advantage of convenient observation by fixing the dirt suction box in an upright manner above the hollow rotating shaft, and at the same time the dirt suction box is fixed by a hanging arm, and the hanging arm is hinged to the shell body; when working, the hanging arm is fixed to keep the dirt suction box in an upright state, and when inspection and maintenance are needed, the hanging arm is rotated to an angle that is convenient for repairing and maintaining the dirt suction box.

[0020] At the same time, the utility model has a concave spring countersunk hole inside the suction box, which effectively reduces the distance between the left and right suction boxes while ensuring the length and force of the compression spring. According to calculation, the distance L is only 60% of other existing structures. Therefore, with the suction box of the patent structure, more turntables can be arranged on the rotating shaft of the same length, greatly improving the output of the turntable microfiltration equipment. In addition, the patent has a simple structure, and experiments have shown that it has high reliability and has a wide range of promotion and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a left side cross-sectional schematic diagram of a rotary disc type microfilter in the prior art.

[0022] Figure 2 It is a schematic diagram of a rotary disc type microfilter of the present utility model.

[0023] Figure 3 yes Figure 2 Schematic top view of .

[0024] Figure 4 yes Figure 2 Schematic diagram of the left side cross-section.

[0025] Figure 5 It is a schematic diagram of the dirt suction device of the turntable microfilter when the dirt suction box is between the two turntables.

[0026] Figure 6 yes Figure 5 Schematic diagram of the left side.

[0027] Figure 7 yes Figure 5 AA cross-sectional view of .

[0028] Figure 8 It is a schematic diagram of the dirt suction device of the turntable type microfilter when the dirt suction box is on the outer side of the turntable.

[0029] Fig. 9 yes Figure 8 Schematic diagram of the left side.

[0030] Fig.10 yes Figure 8 BB cross-sectional view. DETAILED DESCRIPTION

[0031] The present invention will be described in more detail below in conjunction with the embodiments. Example

[0032] A rotary disc microfilter includes a housing 5, a hollow rotating shaft and a suction device, wherein the suction device includes a suction pump and a dirt suction box, wherein the dirt suction box 1 is installed vertically above the hollow rotating shaft 2, and the suction device also includes a dirt suction box fixing device, wherein the dirt suction box fixing device includes a suspension arm 3 and a dirt suction box fixing plate 31, wherein the dirt suction box fixing plate is located below the suspension arm, the dirt suction box is installed on the dirt suction box fixing plate, the dirt suction box is tightly attached to the rotary disc, and the suspension arm is hinged to the housing. The suspension arm is hinged to the housing through a hinge seat, and the suspension arm is hinged to the housing through a support groove provided on the housing, and the suspension arm is hinged to the two side walls of the support groove. The support groove is an open groove, and the opening faces upward.

[0033] When the dirt suction box is between the two turntables, the specific installation is as follows: the two dirt suction boxes are installed on the symmetrical sides of the dirt suction box fixing plate by using connecting pieces, and the two dirt suction boxes can be installed on the connecting pieces movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a through hole, and the sides of the two dirt suction boxes facing the through hole are provided with concave countersunk holes symmetrically arranged on both sides of the through hole at the positions corresponding to the through holes, and the dirt suction device of the turntable microfilter also includes a compression spring, which passes through the through hole on the dirt suction box fixing plate and is placed in the countersunk holes of the two dirt suction boxes.

[0034] When the dirt suction box is on the outer side of the turntable located at the end, its specific installation is as follows: the dirt suction box is installed on one side of the dirt suction box fixing plate by a connecting piece, and the dirt suction box can be installed on the connecting piece movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a concave countersunk hole, and the dirt suction box is also provided with a concave countersunk hole at the corresponding position of the side of the dirt suction box facing the concave countersunk hole of the dirt suction box fixing plate, and the dirt suction device of the turntable microfilter also includes a compression spring, and the compression spring is placed in the two corresponding countersunk holes of the dirt suction box and the dirt suction box fixing plate.

[0035] like Figure 4 As shown, the dirt suction box 1 of the rotary disc microfilter is installed vertically, and the center line of the dirt suction box 1 is consistent with the vertical line of the rotating shaft 2. The dirt suction box 1 is installed on the dirt suction box fixing plate 31 of the hanging arm 3, and is close to the rotating disc 4. The hanging arm 3 is hinged to the support groove 51 through the hinge pin 32. Since the dirt suction box 1 is installed vertically and located on the upper part of the rotating shaft 2, it is convenient for the staff to observe its working condition. In addition, when repairing or replacing the parts of the dirt suction box, the dirt suction box 1 together with the hanging arm 3 is rotated 90 degrees upward around the hinge pin 32. There is no need to drain the water in the equipment, and there is no need to remove the rotating disc, and the related parts of the dirt suction box can be maintained. The structure is simple and the operation is convenient.

[0036] Figure 6 for Figure 5 The left view of Figure 7 for Figure 5 In the AA cross-sectional view, the dirt suction box 1 is fixed to the dirt suction box fixing plate 31 by two groups of dirt suction box slip-on fixing bolts 13 at the upper and lower ends, and there is a dirt suction box concave spring countersunk hole 12 at the upper and lower ends of the dirt suction box 1. When the dirt suction box assembly is in the middle of the two turntables, a dirt suction box is fixed on each side of the dirt suction box fixing plate 31, and a fixing plate spring hole 311 is opened on the dirt suction box fixing plate 31. The compression spring 11 passes through the fixing plate spring hole 311 and is inserted into the corresponding concave spring countersunk holes 12 of the dirt suction boxes on both sides. At this time, the dirt suction boxes on both sides of the dirt suction box fixing plate are pressed and attached to the turntable under the compression force of the compression spring 11 to perform the dirt suction operation. When the dirt suction box is at the leftmost or rightmost side of the turntable, the dirt suction box structure is as shown in FIG. Figure 8 , 9 As shown in FIG. 10 , a dirt suction box is fixed on one side of the dirt suction box fixing plate 31, and a fixing plate concave spring countersunk hole 312 is installed at a position corresponding to the concave spring countersunk hole 12 of the dirt suction box fixing plate, and the pressing spring 11 is sleeved in the concave spring countersunk hole 12 of the dirt suction box and the concave spring countersunk hole 312 of the fixing plate. At this time, the dirt suction box on one side of the dirt suction box fixing plate is pressed and attached to the turntable to perform the dirt suction operation under the pressing force of the pressing spring 11. The distance between the dirt suction boxes on the left and right sides is L.

[0037] The parts not described in this embodiment are the same as those in the prior art.

Claims

1. A rotary disc microfilter, comprising a housing, a hollow rotating shaft and a suction device, wherein the suction device comprises a suction pump and a dirt suction box, characterized in that: The dirt suction box is installed upright above the hollow rotating shaft. The suction device also includes a dirt suction box fixing device. The dirt suction box fixing device includes a suspension arm and a dirt suction box fixing plate. The dirt suction box fixing plate is located below the suspension arm. The dirt suction box is installed on the side of the dirt suction box fixing plate. The dirt suction box is close to both sides of the turntable, and the suspension arm is hinged to the shell.

2. The rotary disc microfilter according to claim 1, characterized in that: The hanging arm is hinged on the shell body by providing a supporting groove on the shell body, and the hanging arm is hinged on the two side walls of the supporting groove.

3. The rotary disc microfilter according to claim 2, characterized in that: When the dirt suction box is between the two turntables, the dirt suction box is specifically installed on the dirt suction box fixing plate as follows: the two dirt suction boxes are installed on the symmetrical sides of the dirt suction box fixing plate by using connecting pieces, and the two dirt suction boxes can be installed on the connecting pieces movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a through hole, and the sides of the two dirt suction boxes facing the through hole are provided with concave countersunk holes symmetrically arranged on both sides of the through hole at the positions of the through holes corresponding to the through holes, and the dirt suction device of the rotary disc microfilter also includes a compression spring, which passes through the through hole on the dirt suction box fixing plate and is placed in the countersunk holes of the two dirt suction boxes.

4. The rotary disc microfilter according to claim 2, characterized in that: When the dirt suction box is on the outer side of the turntable at the end, the dirt suction box is specifically installed on the dirt suction box fixing plate as follows: the dirt suction box is installed on one side of the dirt suction box fixing plate by using a connecting piece, and the dirt suction box can be installed on the connecting piece movably relative to the dirt suction box fixing plate, the dirt suction box fixing plate is provided with a concave countersunk hole, and the dirt suction box is also provided with a concave countersunk hole at the corresponding position of the side of the dirt suction box facing the concave countersunk hole of the dirt suction box fixing plate, and the dirt suction device of the turntable microfilter also includes a compression spring, and the compression spring is placed in the two corresponding countersunk holes of the dirt suction box and the dirt suction box fixing plate.

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