A screen filtering system and filtering method thereof

Abstract

The present invention discloses a screen filtration system and a filtration method thereof, comprising: during installation, placing a screening unit inside an end cap and a receiving cavity and fastening the same; during adjustment, observing the receiving cavity and determining the size of the screen hole; linearly adjusting the adjustment tube by rotating a knob; and starting a motor to perform screening. The present invention has the beneficial effects of being able to achieve linear adjustment of the screen hole size, being able to perform screening of materials by assisting the motor; and having good screening capabilities for solid-liquid mixtures.

Description

Technical Field

[0001] The invention relates to the technical field of screen meshes, in particular to a screen mesh filtering system and a filtering method thereof. Background Art

[0002] The sieve is different from the general mesh products. It has a strict series of mesh sizes and has the function of grading and screening particles. It is a mesh product approved by the industry, institutions, and standards. Its size is not isolated, it has a series of mesh sizes, the purpose is to grade and screen. The application fields of sieves are all over industry, agriculture, science and technology, and national defense.

[0003] Currently in the technical field, the size of the sieve holes in conventional screens is fixed, and the size of the sieve holes cannot be dynamically adjusted according to the size of the material to be screened. The use of screen systems and conventional screen equipment often lacks a linear adjustment process for the size of the sieve holes, and the objects of screening are often limited to the mutual separation of solid materials. There is a lack of screening equipment that can achieve the mutual separation of solid and liquid. The adjustment of the screening structure achieved by the more advanced technical solutions in this field often requires stopping the normal screening process during the process of adjusting the screen and manually or using auxiliary tools to achieve the corresponding adjustment of the screening size by manpower. There is a lack of a labor-saving electric device for adjusting the screening standard.

[0004] In addition, due to the fact that blockage problems often occur during the actual use of the current screen system, if the screen is cleaned or the self-cleaning function is performed after each use, it will greatly affect the production efficiency. At present, there is a lack of a screen filtration system in the field that can achieve a certain self-cleaning effect with the help of the normal use process of the screen after each use. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0007] Therefore, the purpose of the present invention is to provide a screen filtering system and a filtering method thereof, which can solve the problem that conventional screens cannot adjust their screen holes linearly and regularly and cannot take into account the solid-solid and solid-liquid separation of materials. In addition, it is also difficult to clean the screen in time after use.

[0008] To solve the above technical problems, the present invention provides the following technical solutions: a screen filtering method, which includes performing installation work, placing a screening unit inside the end cover and the accommodating cavity and fastening them;

[0009] Determine the relative position of the regulating tube and the screen tube, observe the accommodating cavity, and further determine the size of the screen hole;

[0010] Adjust the regulating tube linearly to the appropriate position by rotating the knob;

[0011] Start the motor to perform screening work;

[0012] A cleaning medium is placed in the accommodating chamber to preliminarily clean the regulating tube and the screen tube, the regulating tube is adjusted to a large extent by rotating the knob, and the motor is started again for cleaning.

[0013] In order to solve the above technical problems, the present invention further provides the following technical solutions: a screen filtering system, which includes a transmission unit, including a support seat, a motor arranged on the surface of the support seat, a swing arm arranged at the end of the motor shaft, and a transmission rod arranged on both sides of the support seat; a fixing unit, including an end cover, and a accommodating cavity arranged at the lower end of the end cover; a screening unit, including a screen tube, and an adjusting tube arranged on the periphery of the screen tube.

[0014] As a preferred solution of the screen filtration system described in the present invention, the support seat includes a pair of support ears arranged on both sides thereof, a positioning frame arranged between the support ears, a support leg arranged at the bottom of the positioning frame, and a motor slot arranged on the surface of the support seat.

[0015] As a preferred solution of the screen filtration system described in the present invention, the swing arm includes a sleeve arranged at its bottom, a plurality of fastening bolts arranged on the side wall of the sleeve, a folding arm arranged on one side of the sleeve, and a positioning column arranged at the end of the folding arm.

[0016] As a preferred solution of the screen filtration system of the present invention, the transmission rod includes a balance block arranged in the middle section, a pair of cylinders arranged at both ends of the transmission rod, and a pair of hinged rods arranged on both sides of the balance block.

[0017] As a preferred solution of the screen filtration system described in the present invention, the end cover includes a pair of hinged seats arranged on the top thereof, bolt holes arranged on both sides of the end cover, a plug arranged on the bottom of the end cover, and a pair of clamping columns arranged on both sides of the plug.

[0018] As a preferred solution of the screen filtration system of the present invention, the accommodating chamber includes a pair of bolt columns arranged at its upper end, and a receiving column arranged at the bottom of the accommodating chamber.

[0019] As a preferred solution of the screen filtration system of the present invention, the screen tube includes a pair of positioning rings arranged on its side walls, a worm rack arranged on the upper end of the screen tube, a worm arranged outside the worm rack, a knob arranged on one side of the worm, and a plurality of first diamond holes arranged in an array on the screen tube body.

[0020] As a preferred solution of the screen filtration system of the present invention, the regulating tube includes a turbine arranged at the top end thereof, and a plurality of second diamond-shaped holes arranged in an array on the tube body of the regulating tube.

[0021] As a preferred solution of the novel screen filtration system of the present invention, the first diamond-shaped hole and the second diamond-shaped hole are consistent in shape and size.

[0022] The beneficial effects of the present invention are as follows: the present invention can take into account the processes of dynamic separation of materials of a specific size under solid-solid separation and solid-liquid mixture states; based on the linear adjustment based on the size of the sieve holes, the relative motion state changes, and the motor can be used to assist in screening and mixing materials in various states, as well as its own self-cleaning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0024] Figure 1 It is an overall three-dimensional view of the present invention.

[0025] Figure 2 It is a diagram showing the overall local structure of the present invention.

[0026] Figure 3 For the present invention Figure 2 A is a partial enlarged view of the

[0027] Figure 4 It is a structural view of the end cover of the present invention.

[0028] Figure 5 It is the cross-sectional view AA of the fixing unit and the screening unit of the present invention.

[0029] Figure 6 It is the cross-sectional view BB of the fixing unit and the screening unit of the present invention.

[0030] Figure 7 It is a schematic diagram of the change of the diamond-shaped holes of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0034] Reference Figures 1 to 7 , which is the first embodiment of the present invention, and this embodiment provides a screen filtering system, which includes a transmission unit 100, including a support base 101, a motor 102 arranged on the surface of the support base 101, a swing arm 103 arranged at the shaft end of the motor 102, and a transmission rod 104 arranged on both sides of the support base 101; a fixing unit 200, including an end cover 201, and a accommodating cavity 202 arranged at the lower end of the end cover 201; a screening unit 300, including a screen tube 301, and an adjusting tube 302 arranged on the periphery of the screen tube 301.

[0035] Furthermore, the support base 101 includes a pair of support ears 101a disposed on both sides thereof, a positioning frame 101b disposed between the support ears 101a, a support leg 101c disposed at the bottom of the positioning frame 101b, and a motor slot 101d disposed on the surface of the support base 101.

[0036] Furthermore, the swing arm 103 includes a sleeve 103a disposed at the bottom thereof, a plurality of fastening bolts 103b disposed on the side wall of the sleeve 103a, a folding arm 103c disposed on one side of the sleeve 103a, and a positioning column 103d disposed at the end of the folding arm 103c.

[0037] Furthermore, the transmission rod 104 includes a balancing block 104 a disposed in the middle section, a pair of cylinders 104 b disposed at both ends of the transmission rod 104 , and a pair of hinged rods 104 c disposed at both sides of the balancing block 104 a .

[0038] Furthermore, the end cover 201 includes a pair of hinged seats 201a arranged on the top thereof, bolt holes 201b arranged on both sides of the end cover 201, a plug 201c arranged on the bottom of the end cover 201, and a pair of clamping columns 201d arranged on both sides of the plug 201c.

[0039] Furthermore, the accommodating chamber 202 includes a pair of bolt columns 202 a disposed at the upper end thereof, and a receiving column 202 b disposed at the bottom of the accommodating chamber 202 .

[0040] Furthermore, the screen tube 301 includes a pair of positioning rings 301a arranged on its side walls, a worm rack 301b arranged on the upper end of the screen tube 301, a worm 301c arranged outside the worm rack 301b, a knob 301d arranged on one side of the worm 301c, and a plurality of first diamond holes 301e arranged in an array on the body of the screen tube 301.

[0041] Furthermore, the regulating tube 302 includes a turbine 302 a disposed at the top end thereof, and a plurality of second rhombus-shaped holes 302 b arranged in an array on the tube body of the regulating tube 302 .

[0042] Furthermore, the first diamond-shaped hole 301e and the second diamond-shaped hole 302b are consistent in shape and size.

[0043] It should be noted that two support ears 101a are symmetrically fixed on the surfaces of both ends of the support seat 101, and each support ear 101a has two through holes that penetrate horizontally, which are used to cooperate with the two cylinders 104b, so that the transmission rod 104 can rotate inside the aforementioned circular hole, and the two are movably connected. The positioning frame 101b is located at the center of the support seat 101, and is fixed to the support seat 101 through three support legs 101c. In addition, there is a through hole in the center of the surface of the positioning frame 101b, which is used to pass the rotating shaft of the motor 102 and ensure the stable rotation of the rotating shaft. The motor slot 101d is located at the center of the support seat 101, and is used to accommodate and fix the motor 102, so that the shaft end of the motor 102 is aligned with the hole on the positioning frame 101b, and the motor 102 here is fixed vertically upward.

[0044] Preferably, the sleeve 103a on the swing arm 103 can be inserted into the shaft end of the motor 102, and the swing arm 103 is fixed to the shaft end of the motor 102 by multiple fastening bolts 103b on the side wall of the sleeve 103a. Therefore, when the motor 102 rotates, it can drag the entire swing arm 103 to rotate. A folding arm 103c is fixed to one side of the sleeve 103a, and the bending angle of the folding arm 103c is an obtuse angle. A positioning column 103d is fixed to one end of the bending part of the folding arm 103c, which can cooperate with the receiving column 202b at the bottom of the accommodating cavity 202, and the two are movably connected. It should be noted that the positioning column 103d and the receiving column 202b can be limited to ensure that the accommodating cavity 202 is prevented from detaching from the rocker arm 103 when the accommodating cavity 202 rotates on the positioning column 103d.

[0045] Preferably, when the motor 102 is driven, the mixing or separation capability of the entire screening unit 300 can be ensured.

[0046] Preferably, a rectangular balancing block 104a is provided in the middle of the transmission rod 104, and two hinged rods 104c are fixed on both sides of the balancing block 104a, and the connecting line of the two hinged rods 104c is perpendicular to the axis of the transmission rod 104. It should be noted that the balancing block 104a is used to strengthen the structural strength between the transmission rod 104 and the hinged rod 104c. Here, the transmission rod 104 can assist the rocker arm 103 in rotating to ensure the stability and reliability of the screening unit 300.

[0047] Preferably, the end cover 201 is used to seal the screen tube 301 and can be fixedly connected with the accommodating chamber 202. Specifically, the two hinge seats 201a are respectively hinged with the two hinge rods 104c, and are movably connected with each other. Two bolt holes 201b are symmetrically distributed on both sides of the upper end surface of the end cover 201. The bolt holes 201b can correspond to the number and position of the accommodating chamber 202, and the two can be fixedly connected by external bolts. While fixing, the plug 201c is constantly pressed into the pipe mouth of the screen tube 301, which can play a sealing role. In addition, two symmetrically distributed and fixed clamping columns 201d can be provided at both ends of the plug 201c. The clamping columns 201d can cooperate with the two "grooves" of the pipe mouth of the screen tube 301 when the end cover 201 seals the screen tube 301, so as to ensure the absolute fixation of the entire fixing unit 200 and the screen tube 301.

[0048] Preferably, the accommodating chamber 202 serves as a accommodating member for the screening unit 300. It should be noted that the cavity opening of the accommodating chamber 202 can support the lower end surface of the turbine 302a to play a sealing role.

[0049] Preferably, in order to facilitate personnel to observe the internal situation of the accommodating cavity 202, it can be made of a transparent high-strength material.

[0050] Preferably, a pair of positioning rings 301a are fixed at the upper and lower ends of the screen tube 301, which are used to limit the adjusting tube 302 when the adjusting tube 302 is tightly fitted on the outer wall of the screen tube 301, so that it is not easy to cause axial displacement. A worm rack 301b is fixed on the outer wall of the positioning ring 301a at the upper end of the screen tube 301. The worm rack 301b is used to assemble the worm 301c, and it is also convenient for the worm 301c to align with the turbine 302a and engage with it. In addition, a pair of circular rings for limiting the worm 301c are provided on the worm rack 301b to ensure that the worm 301c can only rotate without displacement to other positions. A knob 301d is also fixed to the end of the worm 301c, and the knob 301d can be convenient for personnel to rotate and drive the worm 301c to rotate.

[0051] It should be noted that, since the fixing unit 200 is fixed to the screen tube 301, and the adjusting tube 302 is movably connected to the screen tube 301, the adjusting tube 302 is driven to rotate by the worm 301c. At this time, since the upper and lower end surfaces of the turbine 302a of the adjusting tube 302 are clamped at the same time, and the cooperation between the turbine and the worm, the screen tube 301 and the adjusting tube 302 will not rotate relative to each other unless the personnel actively adjusts them. In addition, the cooperation between the turbine and the worm can facilitate the personnel to linearly adjust the position between the screen tube 301 and the adjusting tube 302, and can also facilitate the personnel to fine-tune the adjustment of the screen tube 301 and the adjusting tube 302, so that the size of the sieve hole between the sieve tube 301 and the adjusting tube 302 can be very accurately controlled, that is, the sieve hole is formed between the second diamond hole 302b and the first diamond hole 301e.

[0052] Better, see attached Figure 7 The first diamond holes 301e are located between the positioning rings 301a on both sides. The circular array is evenly distributed on the outer wall of the sieve tube 301. Immediately following the sieve tube 301, there are first diamond holes 301e with the same layout. When the two are completely aligned, the sieve holes are the largest, as shown in state [ii]. When the adjustment tube 302 is deflected, the sieve holes gradually become smaller, as shown in state [i]. Therefore, the dynamic change of the sieve holes can be realized. In addition, through the setting of the diamond holes, it can be ensured that the shape of the sieve holes is always in a regular state when the sieve holes change dynamically.

[0053] Compared with the technical solution recorded in publication number CN101637761B, that is, a group of movable frames moving along the X-axis and a group of movable frames moving along the Y-axis are arranged on the frame, and the upper beams uniformly formed by each movable frame moving along the X-axis are respectively located between adjacent longitudinal bars, and are parallel to the longitudinal bars and located in the same plane, and the lower beams of the movable frames are guided to slide by a guide sleeve fixed on the frame; the upper beams uniformly formed by each movable frame moving along the Y-axis are respectively located between adjacent cross bars, and are parallel to the cross bars and located in the same plane, and the lower beams of the movable frames are guided to slide by a guide sleeve fixed on the frame. The reasonable, easy-to-use, high-precision, high-efficiency, economical and practical screen with continuously adjustable sieve hole size is realized. The sieve hole size of the screen can be adjusted within a certain range and is not restricted by specifications when used. The technical effect of one net for multiple uses can be achieved. The specific operation of the sieve hole adjustment of this scheme is simpler. The scale lines are etched on the knob 301d, so that the sieve hole size can be controlled very accurately, especially based on the screening of materials of a specific size in a solid-liquid mixed state. The technical effect is far better than the technical scheme recorded in the publication number CN101637761B.

[0054] As recorded in publication number CN110605231A, it includes a mounting shell, a fixed screen and a movable screen tightly arranged up and down, the four ends of the fixed screen and the movable screen are respectively located in the mounting shell, the four ends of the fixed screen are fixedly connected to the mounting shell, and the mounting shell is provided with an adjustment mechanism for adjusting the lateral or longitudinal movement of the movable screen relative to the fixed screen, thereby realizing the adjustable sieve hole size. In this scheme, diamond holes are adopted, and the dynamic dislocation of the corresponding diamond holes is further highlighted, and the regularity of the size change of the sieve hole is further highlighted. In addition, the shape of the sieve hole will not change when the size of the sieve hole changes, and the size of the sieve hole can be linearly and easily monitored. Control, accurate and more in line with the needs of personnel for screening materials of specific sizes.

[0055] In summary, this design can take into account the dynamic separation process of materials of specific sizes under solid-solid separation and solid-liquid mixture states; based on the linear adjustment based on the size of the sieve holes, the relative motion state changes, and the motor can be used to assist in screening and mixing materials in various states, as well as its own self-cleaning ability. Example 2

[0056] Reference Figures 1 to 7 , which is the second embodiment of the present invention, and which is different from the first embodiment in that: a screen filtering method is also provided, which includes installing the end cover and the accommodating cavity, placing the screening unit inside the end cover and the accommodating cavity and fastening them;

[0057] Determine the relative position of the regulating tube and the screen tube, observe the accommodating cavity, and further determine the size of the screen hole;

[0058] Adjust the regulating tube linearly to the appropriate position by rotating the knob;

[0059] Start the motor to perform screening work;

[0060] A cleaning medium is placed in the accommodating chamber to preliminarily clean the regulating tube and the screen tube, the regulating tube is adjusted to a large extent by rotating the knob, and the motor is started again for cleaning.

[0061] Specifically, during use, the entire screening unit 300 is first placed into the accommodating cavity 202, and after it is tightly fitted, the circular plug 201c on the end cover 201 is placed into the pipe mouth of the screen tube 301, and after the bolt hole 201b is aligned with the bolt column 202a, the bolts are installed to ensure that the end cover 201 and the screen tube 301 are tightly fixed, and then the hinge seat 201a is matched with the hinge rod 104c, and the installation work is completed at this time.

[0062] When adjusting the mesh size, the operator rotates the worm 301c through the knob 301d, and the worm 301c drives the turbine 302a to rotate, so that the adjustment tube 302 deflects. At this time, the specific number of rotations is determined according to the actual mesh size required. After the adjustment is completed, the motor 102 is started to perform screening or mixing.

[0063] When cleaning, pour out the materials in the containing chamber 202 and the screen tube 301, introduce the cleaning liquid medium into the containing chamber 202, repeat the above installation process, and then greatly adjust the relative position between the screen tube 301 and the regulating tube 302, and repeatedly start the motor 102. At this time, the screening or mixing work is converted into a self-cleaning function.

[0064] In summary, this design can achieve linear adjustment of the sieve hole size and can screen materials with the assistance of a motor; in addition, it also has good screening capabilities for solid-liquid mixtures.

[0065] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0066] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0067] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A screen filtration system, characterized in that: include, The transmission unit (100) comprises a support base (101), a motor (102) arranged on the surface of the support base (101), a swing arm (103) arranged at the shaft end of the motor (102), and a transmission rod (104) penetrating and arranged on both sides of the support base (101); the fixing unit (200) comprises an end cover (201) and a receiving cavity (202) arranged at the lower end of the end cover (201); the screening unit (300) comprises a screen tube (301) and an adjusting tube (302) arranged at the periphery of the screen tube (301); The support base (101) comprises a pair of support ears (101a) arranged on both sides thereof, a positioning frame (101b) arranged between the support ears (101a), a support leg (101c) arranged at the bottom of the positioning frame (101b), and a motor slot (101d) arranged on the surface of the support base (101); The swing arm (103) comprises a shaft sleeve (103a) arranged at the bottom thereof, a plurality of fastening bolts (103b) arranged on the side wall of the shaft sleeve (103a), a folding arm (103c) arranged on one side of the shaft sleeve (103a), and a positioning column (103d) arranged at the end of the folding arm (103c); The transmission rod (104) comprises a balancing block (104a) arranged at a middle section thereof, a pair of cylinders (104b) arranged at both ends of the transmission rod (104), and a pair of hinged rods (104c) arranged at both sides of the balancing block (104a); The installation method of the screen filtration system is as follows: The screening unit (300) is placed inside the end cover (201) and the accommodating cavity (202) and fastened; Determine the relative position of the regulating tube (302) and the screen tube (301), observe the containing chamber (202), and further determine the size of the screen hole; Adjust the regulating tube linearly to the appropriate position by rotating the knob; Start the motor to perform screening work; A cleaning medium is placed in the accommodating chamber (202) to preliminarily clean the regulating tube (302) and the screen tube (301). The regulating tube (302) is adjusted to a large extent by rotating the knob, and the motor is started again to perform cleaning.

2. The screen filtration system according to claim 1, characterized in that: The end cover (201) comprises a pair of hinged seats (201a) arranged on the top thereof, bolt holes (201b) arranged on both sides of the end cover (201), a plug (201c) arranged on the bottom of the end cover (201), and a pair of clamping columns (201d) arranged on both sides of the plug (201c).

3. The screen filtration system according to claim 2, characterized in that: The accommodating cavity (202) comprises a pair of bolt columns (202a) arranged at the upper end thereof, and a receiving column (202b) arranged at the bottom of the accommodating cavity (202).

4. The screen filtration system according to claim 3, characterized in that: The screen tube (301) comprises a pair of positioning rings (301a) arranged on its side wall, a worm rack (301b) arranged on the upper end of the screen tube (301), a worm (301c) arranged outside the worm rack (301b), a knob (301d) arranged on one side of the worm (301c), and a plurality of first rhombus holes (301e) arranged in an array on the body of the screen tube (301).

5. The screen filtration system according to claim 4, characterized in that: The regulating tube (302) comprises a turbine (302a) arranged at the top end thereof, and a plurality of second rhombus-shaped holes (302b) arranged in an array on the tube body of the regulating tube (302).

6. The screen filtration system according to claim 5, characterized in that: The first diamond-shaped hole (301e) and the second diamond-shaped hole (302b) are consistent in shape and size.

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