Filter material cleaning and screening device

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a filter material cleaning and screening device which comprises a screening pipe, a plurality of compression springs and at least one vibration motor, the screening pipe is obliquely installed on an installation support, the inlet end of the screening pipe inclines upwards, the outlet end of the screening pipe inclines downwards, a plurality of through holes are formed in the bottom of the screening pipe, and the compression springs are arranged in the through holes. A plurality of corresponding filter screens are arranged at the bottom of the screening pipe, each filter screen seals the corresponding through hole, the diameters of meshes of the same filter screen are the same, and the diameters of the meshes of the filter screens are different and are sequentially increased from the inlet end to the outlet end of the screening pipe; the two ends of each compression spring are connected with the screening pipe and the mounting support correspondingly. The vibration motor is connected to the screening pipe. The filter material screening device has the advantages that the screening pipe is driven by the vibration motor to vibrate, filter materials with various specifications and particle sizes are screened out respectively, and screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a filter media cleaning and screening device. Background Technology

[0002] Wastewater treatment plant filters are an important unit in the wastewater treatment process, mainly used to remove suspended solids, organic matter, microorganisms and other impurities from wastewater to improve the quality of effluent.

[0003] The filter bed contains a filter layer composed of filter media, where impurities in the wastewater are primarily trapped and removed. The filter layer is typically composed of quartz sand, gravel, etc., with particle size gradually increasing from top to bottom. Due to the high water flow velocity during filtration and backwashing, the particles in the filter layer are subjected to significant impact forces, causing the originally stratified filter media by particle size to become disordered, thus disrupting the normal structure of the filter layer. Currently, manual screening to separate filter media of different particle sizes is inefficient. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the current method of manually screening filter media of different particle sizes from a filter layer whose normal structure has been damaged is inefficient. The purpose is to provide a filter media cleaning and screening device that uses a vibrating motor to drive the screening tube to vibrate, thereby screening filter media of various particle sizes separately and improving screening efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] A filter media cleaning and screening device includes a screening tube, several compression springs, and at least one vibration motor. The screening tube is mounted obliquely on a mounting bracket, with its inlet end inclined upwards and its outlet end inclined downwards. Several through holes are provided at the bottom of the screening tube, and several corresponding filter screens are provided at the bottom of the screening tube. Each filter screen closes a corresponding through hole. The mesh diameter of the same filter screen is the same, while the mesh diameter of each filter screen is different and increases sequentially from the inlet end to the outlet end of the screening tube. In operation, the filter media with the largest particle size rolls out from the outlet end of the screening tube. The two ends of each compression spring are connected to the screening tube and the mounting bracket, respectively. The vibration motor is connected to the screening tube.

[0007] The beneficial effects of this utility model are as follows: by setting a screening pipe and a vibration motor on the screening pipe, and by setting a through hole at the bottom of the screening pipe, and by setting a filter screen on the side wall of the through hole to seal the corresponding through hole, it is convenient to drive the entire screening pipe to vibrate through the vibration motor during operation, and increase the vibration effect under the action of the spring. This allows water and filter media transported by the sand pump to enter the inlet of the screening pipe, and to be screened out through the filter screen of the corresponding aperture during the vibration of the screening pipe. The inlet end of the screening pipe is tilted upward and the outlet end is tilted downward, so that the filter media that is not screened out through the filter screen at the inlet end of the screening pipe rolls to the middle and lower end of the screening pipe and is screened out through the filter screen of the corresponding aperture. This separates the filter media of various particle sizes, improves the screening efficiency, and facilitates the subsequent process to gradually lay the filter media in the filter tank according to the particle size from top to bottom, so as to meet the filter layer laying requirements and ensure that the filtered sewage meets the design requirements.

[0008] In some embodiments, a protruding mounting portion is provided on the outer side of the inlet end of the screening tube, and the base of the vibrating motor is connected to the mounting portion by bolts. The vibrating motor is installed on the outer side of the inlet end of the screening tube. By providing a mounting portion on the screening tube, it is easy for the mounting portion to fit snugly with the base of the vibrating motor, ensuring the strength and rigidity of the connection point between the motor and the screening tube, thereby improving the stability of the motor during operation. Since the filter material is at the inlet end of the screening tube, connecting the vibrating motor to the inlet end of the screening tube ensures that the filter material is screened to the corresponding position during vibration.

[0009] In some embodiments, an installation pipe is provided at the top of the inner cavity of the inlet end of the screening pipe. The two ends of the installation pipe are closed, and a connector is provided on the installation pipe. The connector is sealed to a water pipe, and several nozzles are installed on the installation pipe, with the nozzle outlets facing the bottom of the inner side of the screening pipe. By providing an installation pipe and sealing it to a water pipe, water can be supplied to the installation pipe through the water pipe during operation, allowing water to spray out from each nozzle. The sprayed water washes the filter media, and the water pressure can be adjusted to break up and wash away sediment.

[0010] In some embodiments, the filter screen includes a fine-particle filter screen, a medium-particle filter screen, and a coarse-particle filter screen, which are sequentially arranged along the through holes corresponding to the inlet and outlet ends of the screening tube. This facilitates the separation of the disordered filter layer into fine, medium, and coarse particles, as well as larger particles than coarse particles.

[0011] In some embodiments, the fine-particle filter screen has a mesh diameter of 2 mm, the medium-particle filter screen has a mesh diameter of 8 mm, and the coarse-particle filter screen has a mesh diameter of 20 mm. This facilitates the separation of the disordered filter layer into fine particles smaller than 2 mm, medium particles from 2 mm to less than 8 mm, coarse particles from 8 mm to less than 20 mm, and large particles larger than 20 mm, achieving a one-time screening of filter media with four particle size specifications.

[0012] In some embodiments, the bottom of the screening tube is provided with a fine particle discharge section, a medium particle discharge section, and a coarse particle discharge section, which are respectively located at the discharge ends of the fine particle filter screen, the medium particle filter screen, and the coarse particle filter screen. By setting up the fine particle discharge section, the medium particle discharge section, and the coarse particle discharge section, three sizes of filter media are collected, so that the filter media are discharged along the corresponding discharge sections, and the three sizes are collected separately.

[0013] In some embodiments, the system further includes a fine particle collection box, a medium particle collection box, and a coarse particle collection box. Each of the fine particle discharge section, medium particle discharge section, and coarse particle discharge section includes a conical section and a straight pipe section. The free end of the conical section is sealed to the bottom of the screening pipe. The free ends of the straight pipe sections of the fine particle discharge section, medium particle discharge section, and coarse particle discharge section are located at the inlet ends of the fine particle collection box, medium particle collection box, and coarse particle collection box, respectively. By setting the conical section, filter media particles of corresponding specifications are guided into the corresponding straight pipe section and then enter the corresponding collection box, achieving separate collection of multiple specifications.

[0014] In some embodiments, the fine particle collection box, medium particle collection box, and coarse particle collection box are made of wire mesh, the pore size of which is smaller than the particle size of the filter particles contained therein. By making the collection boxes of wire mesh, water and sediment particles falling with the filter media particles can easily flow out through the mesh, ensuring that the filter media particles in the collection boxes meet the requirements for reuse.

[0015] In some embodiments, the screening tube is a straight tube with a square cross-section, and the inclination angle α of the screening tube is 20° to 30°. By setting the screening tube to the above-mentioned inclination angle, it is possible to screen out the corresponding filter media particles at the corresponding filter screen of the screening tube, and also to ensure that larger-sized filter media that are not screened out by the corresponding filter screen can continue to move down the screening tube until they are screened out from the outlet end of the screening tube.

[0016] In some embodiments, a horizontal crossbar is provided at the top of the mounting bracket, and several compression springs are connected side by side to the horizontal crossbar. The two ends of each compression spring are fixedly connected to the horizontal crossbar and the bottom area of ​​the screening tube, respectively. The natural length of the compression spring located at the bottom of the screening tube is shorter than the natural length of the compression springs located on both sides of the screening tube. By fixing the two ends of the compression springs to the horizontal crossbar and the bottom area of ​​the screening tube, it is convenient to position the screening tube on the mounting bracket and ensure that the screening tube can vibrate continuously.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] 1. The entire screening tube is vibrated by a vibrating motor, and the vibration effect is increased by the action of a spring. This allows water and filter media transported by a sand pump to enter the inlet of the screening tube and be screened out through the filter screens of the corresponding aperture size during the vibration of the screening tube. This enables the separate screening of filter media of various particle sizes, thereby improving screening efficiency.

[0019] 2. By setting up an installation pipe and sealing it with a water pipe, water can be supplied to the installation pipe through the water pipe during operation, so that water can be sprayed out from each nozzle. The sprayed water washes the filter media, and the water pressure can be adjusted to break up and wash away the sediment.

[0020] 3. The collection box is made of wire mesh, which allows water and sediment particles that fall with the filter media to flow out of the corresponding collection box through the mesh of the wire mesh. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a structural diagram of the present utility model;

[0023] Figure 2 This is a top view of the sieve tube in the figure of this utility model after removing the top;

[0024] Figure 3 These are partial structural diagrams of this utility model;

[0025] Figure 4 This is a schematic diagram of the internal structure of the inlet end of the screening tube in this utility model.

[0026] The attached diagram shows the markings and corresponding component names:

[0027] Screening pipe 10, mounting bracket 11, mounting part 12, limiting part 13, compression spring 14, fine particle filter screen 20, fine particle discharge part 201, fine particle collection box 202, medium particle filter screen 21, medium particle discharge part 211, medium particle collection box 212, coarse particle filter screen 22, coarse particle discharge part 221, coarse particle collection box 222, nozzle 30, mounting pipe 31, vibration motor 40. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0029] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0032] Example

[0033] like Figures 1-4As shown, this embodiment provides a filter media cleaning and screening device, characterized by comprising a screening tube 10, several compression springs 14, and at least one vibration motor 40. The screening tube 10 is obliquely mounted on a mounting bracket 11, with its inlet end inclined upwards and its outlet end inclined downwards. Several through holes are provided at the bottom of the screening tube 10, and several corresponding filter screens are provided at the bottom of the screening tube 10. Each filter screen closes a corresponding through hole. The mesh diameter of the same filter screen is the same, while the mesh diameter of each filter screen is different and increases sequentially from the inlet end to the outlet end of the screening tube 10. The two ends of each compression spring 14 are connected to the screening tube 10 and the mounting bracket 11, respectively. The vibration motor 40 is connected to the screening tube 10. This device separates filter media of various particle sizes, improving screening efficiency and facilitating subsequent processes to re-lay the filter media in the filtration tank according to the gradually increasing particle size from top to bottom, thus meeting the filter layer laying requirements and ensuring that the filtered wastewater meets design requirements.

[0034] See Figure 1 and Figure 3 The screening pipe 10 has a protruding mounting part 12 on the outer side of its inlet end. The base of the vibrating motor 40 is connected to the mounting part 12 by bolts, and the vibrating motor 40 is installed on the outer side of the inlet end of the screening pipe 10. By providing the mounting part 12 on the screening pipe 10, it is easy for the mounting part 12 to fit snugly with the base of the vibrating motor 40, ensuring the strength and rigidity of the connection point between the motor and the screening pipe 10, thereby improving the stability of the motor during operation. Since the filter material is at the inlet end of the screening pipe 10, the vibrating motor 40 is connected to the inlet end of the screening pipe 10 to ensure that the filter material is screened to the corresponding position during vibration.

[0035] See Figure 1 and Figure 4 An installation pipe 31 is provided at the top of the inner cavity of the inlet end of the screening pipe 10. Both ends of the installation pipe 31 are closed, and a connector is provided on the installation pipe 31. The connector is sealed to a water pipe. Several nozzles 30 are installed on the installation pipe 31, with the nozzle outlets facing the bottom inner side of the screening pipe 10. By providing the installation pipe 31 and sealing it to the water pipe, water can be supplied to the installation pipe 31 through the water pipe during operation, causing water to spray out from each nozzle 30. The sprayed water washes the filter media, and the water pressure can be adjusted to break up and wash away sediment.

[0036] See Figures 1-3The filter screen includes a fine-particle filter screen 20, a medium-particle filter screen 21, and a coarse-particle filter screen 22, which are sequentially arranged along the through holes from the inlet to the outlet of the screening tube 10. This facilitates the separation of the disordered filter layer into fine, medium, and coarse particles, as well as larger particles than coarse particles.

[0037] See Figure 2 The fine-particle filter screen 20 has a mesh diameter of 2mm, the medium-particle filter screen 21 has a mesh diameter of 8mm, and the coarse-particle filter screen 22 has a mesh diameter of 20mm. This facilitates the separation of the disordered filter layer into fine particles smaller than 2mm, medium particles from 2mm to less than 8mm, coarse particles from 8mm to less than 20mm, and large particles larger than 20mm, achieving a one-time screening of filter media with four particle size specifications.

[0038] See Figures 1-3 The bottom of the screening pipe 10 is provided with a fine particle discharge section 201, a medium particle discharge section 211, and a coarse particle discharge section 221, which are located at the discharge ends of the fine particle filter screen 20, the medium particle filter screen 21, and the coarse particle filter screen 22, respectively. By setting the fine particle discharge section 201, the medium particle discharge section 211, and the coarse particle discharge section 221, three types of filter media are collected, so that the filter media are discharged along the corresponding discharge sections, and the three types are collected separately.

[0039] See Figures 1-3 It also includes a fine particle collection box 202, a medium particle collection box 212, and a coarse particle collection box 222. Each of the fine particle discharge section 201, medium particle discharge section 211, and coarse particle discharge section 221 includes a conical section and a straight pipe section. The free end of the conical section is sealed to the bottom of the screening pipe 10. The free ends of the straight pipe sections of the fine particle discharge section 201, medium particle discharge section 211, and coarse particle discharge section 221 are located at the inlet ends of the fine particle collection box 202, medium particle collection box 212, and coarse particle collection box 222, respectively. By setting the conical section, filter media particles of corresponding specifications are guided into the corresponding straight pipe section and then enter the corresponding collection box, achieving separate collection of multiple specifications.

[0040] See Figures 1-3 The fine particle collection box 202, medium particle collection box 212, and coarse particle collection box 222 are made of wire mesh, and the aperture of the wire mesh is smaller than the particle size of the filter particles contained therein. By making the collection boxes with wire mesh, water and sediment particles falling with the filter media particles can easily flow out through the mesh, ensuring that the filter media particles in the collection boxes meet the requirements for reuse.

[0041] See Figures 1-3The screening tube 10 is a straight tube with a square cross-section and an inclination angle α of 20° to 30°. By setting the screening tube 10 to the above-mentioned inclination angle, it is possible to screen out the corresponding filter media particles at the corresponding filter screen of the screening tube 10, and also to ensure that larger-sized filter media that are not screened out by the corresponding filter screen can continue to move down the screening tube 10 until they are screened out from the outlet end of the screening tube 10.

[0042] See Figures 1-3 The mounting bracket 11 has a horizontal crossbar at its top, and several compression springs 14 are connected side-by-side to the horizontal crossbar. The two ends of each compression spring 14 are fixedly connected to the horizontal crossbar and the bottom area of ​​the screening tube 10, respectively. The natural length of the compression spring 14 located at the bottom of the screening tube 10 is shorter than the natural length of the compression springs 14 located on both sides of the screening tube 10. By fixing the two ends of the compression springs 14 to the horizontal crossbar and the bottom area of ​​the screening tube 10, it is easy to position the screening tube 10 on the mounting bracket 11 and ensure that the screening tube 10 can vibrate continuously.

[0043] The vibratory motor 40 has a set of adjustable eccentric blocks installed at each end of the rotor shaft. The centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks is used to obtain the excitation force. The specific structure of the vibratory motor 40 will not be described in detail here. The motor is connected to the screening pipe 10 through the mounting base and transmits the vibration to the screening pipe 10, thereby causing the screening pipe 10 to vibrate and achieve the purpose of screening the filter material.

[0044] See Figure 1 Specifically, the mounting bracket 11 is also provided with a limiting part 13, which is connected to both sides of the horizontal bar and extends out of the top of the mounting bracket 11. The limiting part 13 is at a distance from the screening tube 10 to prevent the screening tube 10 from falling off the mounting bracket 11 during vibration.

[0045] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A filter material cleaning sifter, characterized by, include: A screening tube is installed at an angle on a mounting bracket. The inlet end of the screening tube is inclined upwards, and the outlet end is inclined downwards. Several through holes are provided at the bottom of the screening tube, and several corresponding filter screens are provided at the bottom of the screening tube. Each filter screen closes the corresponding through hole. The mesh diameter of the same filter screen is the same. The mesh diameter of the filter screen increases sequentially from the inlet end to the outlet end of the screening tube. In the working state, the filter material with the largest particle size rolls out from the outlet end of the screening tube. Several compression springs, each of which is connected at both ends to a screening tube and a mounting bracket, respectively; At least one vibrating motor is connected to the screening tube.

2. The material cleaning and screening apparatus of claim 1, wherein, The inlet end of the screening tube is provided with a protruding mounting part, and the base of the vibration motor is connected to the mounting part by bolts. The vibration motor is installed on the outside of the inlet end of the screening tube.

3. The material cleaning and screening apparatus of claim 2, wherein, An installation tube is provided at the top of the inner cavity of the inlet end of the screening tube. Both ends of the installation tube are closed. A connector is provided on the installation tube. The connector is sealed to the water pipe. Several nozzles are installed on the installation tube. The nozzle outlets face the bottom of the inner side of the screening tube.

4. The material cleaning and screening apparatus of claim 3, wherein, The filter screen includes a fine-particle filter screen, a medium-particle filter screen, and a coarse-particle filter screen, which are arranged sequentially along the through holes from the inlet end to the outlet end of the screening tube.

5. The material cleaning and screening apparatus of claim 4, wherein, The fine-particle filter screen has a mesh diameter of 2 mm, the medium-particle filter screen has a mesh diameter of 8 mm, and the coarse-particle filter screen has a mesh diameter of 20 mm.

6. The material cleaning and screening apparatus of claim 4, wherein, The bottom of the screening tube is provided with a fine particle discharge section, a medium particle discharge section and a coarse particle discharge section, which are located at the discharge ends of the fine particle filter screen, the medium particle filter screen and the coarse particle filter screen, respectively.

7. The material cleaning and screening apparatus of claim 6, wherein, It also includes a fine particle collection box, a medium particle collection box, and a coarse particle collection box. Each of the fine particle discharge section, the medium particle discharge section, and the coarse particle discharge section includes a conical section and a straight pipe section. The free end of the conical section is sealed to the bottom of the screening pipe. The free ends of the straight pipe sections of the fine particle discharge section, the medium particle discharge section, and the coarse particle discharge section are located at the inlet ends of the fine particle collection box, the medium particle collection box, and the coarse particle collection box, respectively.

8. The material cleaning and screening apparatus of claim 7, wherein, The fine particle collection box, medium particle collection box, and coarse particle collection box are all made of wire mesh, and the mesh diameter of the wire mesh is smaller than the particle size of the filtered particles contained therein.

9. The filter media cleaning and screening device according to any one of claims 1-8, characterized in that, The screening tube is a straight tube with a square cross-section and an inclination angle α of 20° to 30°.

10. The material cleaning and screening apparatus of any of claims 1-8, wherein, The top of the mounting bracket is provided with a horizontal crossbar, and several compression springs are connected side by side to the horizontal crossbar. The two ends of the compression springs are fixedly connected to the horizontal crossbar and the bottom area of ​​the screening tube, respectively. The natural length of the compression spring located at the bottom of the screening tube is shorter than the natural length of the compression springs located on both sides of the screening tube.

Images