Cyclone high turbidity water filter

Abstract

This utility model provides a cyclone-type high-turbidity water filter, relating to the field of filter technology. It includes a tank and a cyclone separator installed within the tank's cavity. A perforated plate is provided within the cavity, dividing it into an upper cavity and a lower cavity. The cyclone separator is located within the upper cavity, and filter layers one, two, and three are sequentially distributed from top to bottom within the upper cavity, forming a three-layer filter media structure. By installing a cyclone separator inside the tank, filtration is performed using the cyclone separator and filter screen before deep filtration using the three-layer filtration structure. This solves the problem of high-turbidity water easily forming caking at the top of the filter in currently used multi-media filters, leading to reduced filter flow. This achieves highly efficient filtration of high-turbidity water.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a cyclone-type high-turbidity water filter. Background Technology

[0002] High-turbidity water refers to coal-containing wastewater, ash water, or slag water. In industrial production processes, high-turbidity water needs to be treated before being discharged.

[0003] In existing technologies, industrial wastewater is filtered through multiple layers of filter media in multi-media filters to ensure that the filtered water meets discharge standards. However, when filtering highly turbid water, the turbid water tends to cake up at the top of the filter, leading to reduced flow rate and consequently low filtration efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a cyclone-type high-turbidity water filter, which solves the problem that when using multi-media filters to filter high-turbidity water, the high-turbidity water tends to form caking on the upper part of the filter, resulting in a reduction in filter flow.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] In this utility model, the cyclone-type high turbidity water filter includes a tank and a cyclone separator installed in the tank cavity;

[0009] A perforated plate is provided inside the cavity, which divides the cavity into an upper cavity and a lower cavity.

[0010] The hydrocyclone is located in the upper cavity, and filter layer one, filter layer two and filter layer three are distributed from top to bottom in the upper cavity, forming a three-layer filter material structure;

[0011] The hydrocyclone is equipped with a raw water inlet and a bottom flow outlet. The raw water inlet is connected to the outside of the tank through an inlet pipe, and the high turbidity water that needs to be filtered is introduced into the inner cavity of the hydrocyclone. The bottom flow outlet is connected to the outside of the tank through a flow pipe. The hydrocyclone removes most of the suspended solids in the water by swirling separation and discharges them through the bottom flow outlet of the hydrocyclone.

[0012] The bottom of the tank is provided with a connecting pipe and a filtered water drain outlet. The filtered water drain outlet is connected to the tank through the connecting pipe and discharges filtered water.

[0013] Furthermore, a filter screen is installed on the top of the hydrocyclone.

[0014] Furthermore, the pore size of the filter screen is ≤0.2mm.

[0015] Furthermore, the connecting pipe is also provided with a compressed air inlet, a backwash water inlet, and a forward wash water outlet;

[0016] The top of the tank is provided with a connecting pipe 2 and an exhaust pipe, and the end of the connecting pipe 2 away from the tank serves as the backwash outlet for backwash water.

[0017] A pressure gauge and a sampling valve are installed on the backwash outlet.

[0018] Furthermore, a viewing mirror is provided on the side of the tank.

[0019] Furthermore, the hydrocyclone is detachably installed from the tank.

[0020] (III) Beneficial Effects

[0021] This invention provides a cyclone-type high-turbidity water filter. Compared with the prior art, it has the following advantages:

[0022] Beneficial effects:

[0023] By installing a hydrocyclone inside the tank, filtration is performed using the hydrocyclone and filter screen before the three-layer filtration structure is used for deep filtration. This effectively reduces the load on the three-layer filter media and prevents the filter media from caking due to excessive suspended solids in the water. At the same time, because the particles are small, the flow rate of the three-layer filtration structure can be restored through simple backwashing. This solves the problem that currently used multi-media filters tend to form caking on the upper part of the filter when filtering high-turbidity water, which leads to a decrease in filter flow rate. This achieves high-efficiency filtration of high-turbidity water. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the internal structure of a cyclone-type high-turbidity water filter.

[0026] Figure 2 This is a schematic diagram of a cyclone-type high-turbidity water filter.

[0027] Figure label:

[0028] 1. Tank body; 10. Cavity; 101. Filter layer one; 102. Filter layer two; 103. Filter layer three; 11. Perforated plate; 111. Water cap; 12. Connecting pipe one; 121. Compressed air inlet; 122. Filter water outlet; 123. Backwash inlet; 124. Forward wash outlet; 13. Connecting pipe two; 131. Backwash outlet; 132. Pressure gauge; 133. Sampling valve; 14. Exhaust pipe; 15. Discharge port; 16. Sight glass; 17. Manhole; 2. Hydrocyclone; 20. Raw water inlet; 21. Underflow outlet; 3. Filter screen. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] This application provides a cyclone-type high-turbidity water filter, which solves the problem that currently used multi-media filters tend to form caking on the upper part of the filter when filtering high-turbidity water, resulting in a reduction in filter flow rate, and achieves high-efficiency filtration of high-turbidity water.

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] Example:

[0033] like Figures 1-2 As shown, a cyclone-type high turbidity water filter includes a tank 1 and a cyclone separator 2 installed in the cavity 10 of the tank 1;

[0034] A perforated plate 11 is provided inside the cavity 10, which divides the cavity 10 into an upper cavity and a lower cavity.

[0035] The hydrocyclone 2 is located in the upper cavity, and the upper cavity is provided with filter layer 101, filter layer 102 and filter layer 103 arranged from top to bottom, forming a three-layer filter material structure;

[0036] The hydrocyclone 2 is provided with a raw water inlet 20 and an underflow outlet 21. The raw water inlet 20 is connected to the outside of the tank 1 through an inlet pipe, and the high turbidity water that needs to be filtered is introduced into the inner cavity of the hydrocyclone 2. The underflow outlet 21 is connected to the outside of the tank 1 through a flow pipe. The hydrocyclone 2 removes most of the suspended solids in the water by swirling separation and discharges them through the underflow outlet 21 of the hydrocyclone 2.

[0037] The bottom of the tank body 1 is provided with a connecting pipe 12 and a filtered water drain outlet 122. The filtered water drain outlet 122 is connected to the tank body 1 through the connecting pipe 12 and discharges filtered water.

[0038] By installing a hydrocyclone 2 inside the tank 1, filtration is performed using the hydrocyclone 2 and filter screen 3 before using the three-layer filtration structure for deep filtration. This effectively reduces the load on the three-layer filter media and prevents the filter media from caking due to excessive suspended solids in the water. At the same time, because the particles are small, the flow rate of the three-layer filtration structure can be restored through simple backwashing. This solves the problem that currently used multi-media filters tend to form caking on the upper part of the filter when filtering high-turbidity water, which leads to a decrease in filter flow rate. This achieves high-efficiency filtration of high-turbidity water.

[0039] Specifically, the hydrocyclone 2 and the tank 1 can be detached for easy replacement and maintenance of the hydrocyclone. At the same time, placing the hydrocyclone 2 inside the tank 1 saves space occupied by the filter as a whole, making it easier to place and use the filter as a whole.

[0040] like Figure 1 As shown, a filter screen 3 is installed on the top of the hydrocyclone 2. The water after hydrocyclone separation is filtered again by the filter screen 3, thereby further improving the filtration effect of the hydrocyclone 2 on high turbidity water, so that the filter can achieve a better filtration effect.

[0041] Furthermore, the upper filter screen 3 of the hydrocyclone 2 can effectively prevent the filter media from escaping through the overflow pipe of the hydrocyclone 2 during backwashing. Therefore, the pore size of the three-layer filter screen 3 is ≤0.2mm.

[0042] like Figure 1 As shown, the connecting pipe 12 is also provided with a compressed air inlet 121, a backwash water inlet 123 and a forward wash water outlet 124;

[0043] The top of the tank body 1 is provided with a connecting pipe 2 13 and an exhaust pipe 14. The end of the connecting pipe 2 13 away from the tank body 1 serves as the backwash outlet 131 for backwashing water washing.

[0044] A pressure gauge 132 and a sampling valve 133 are installed on the backwash outlet 131.

[0045] The pressure gauge 132 and sampling valve 133 are used to monitor the water flow rate and pressure at the backwash outlet 131 in real time, thereby adjusting the appropriate water flow pressure to achieve a better backwashing effect.

[0046] Specifically, pressure gauges 132 and sampling valves 133 are installed at each flow inlet or outlet of the filter according to actual needs for monitoring, and valves are set to control the flow. The entire filter is operated and controlled by numerical control. Numerical control is existing technology and is not a protected point of this application. Its principle and working process will not be described in detail here.

[0047] The tank body 1 is provided with a discharge port 15, which is located in the three-layer filter structure and is used for the discharge operation of filter media of filter layer 101, filter layer 2 102 and filter layer 3 103.

[0048] The side of the tank 1 is provided with a sight glass 16 for observing the internal condition of the filter so as to detect problems in time.

[0049] The top and bottom of the tank 1 are each provided with an access hole 17 so that relevant personnel can enter the interior of the tank 1 to perform maintenance on the internal parts of the filter.

[0050] It should be noted that high turbidity water refers to coal-containing wastewater, ash water, or slag water;

[0051] The three-layer filtration structure can specifically be:

[0052] The upper layer is made of lightweight anthracite filter media (activated carbon), with a particle size of 0.8-1.6 mm. Due to the large pores between the filter media, it has a large interception capacity and plays a coarse filtration role. The middle layer is made of quartz sand filter media with a particle size of 0.5-0.8 mm. The lower layer is made of heavy filter media such as garnet, magnetite and iridite, with a particle size of 0.25-0.5 mm and a filtration rate of 18-20 m / h.

[0053] During operation, the raw water inlet 20 introduces the high turbidity water that needs to be filtered from the outside into the inner cavity of the hydrocyclone 2 through the water inlet pipe. The hydrocyclone 2 removes most of the suspended solids in the water by swirling separation and discharges them through the underflow outlet 21 of the hydrocyclone 2.

[0054] The clear liquid at the top after separation by hydrocyclone 2 is filtered again by filter screen 3 installed above hydrocyclone 2. After being filtered again by filter screen 3, the water flows through filter layer 101, filter layer 2 102 and filter layer 3 103 for further filtration.

[0055] Before using the three-layer filtration structure for deep filtration, the hydrocyclone 2 and filter screen 3 are used for filtration, which effectively reduces the load on the three-layer filter media and prevents the filter media from caking due to excessive suspended solids in the water. At the same time, because the particles are small, the filter flow can be restored by simple backwashing.

[0056] When setting up the filter, the hydrocyclone 2 is placed inside the tank 1, which saves the overall space occupied by the filter.

[0057] After being filtered through the three-layer filtration structure, the water is discharged and collected through the filter water drain outlet 122;

[0058] When the filter needs cleaning, backwashing water or backwashing air is used to clean the tank 1 and the three-layer filter structure. The clean water for backwashing enters the lower cavity of the tank 1 through the backwash inlet 123 and rinses the three-layer filter structure from bottom to top through multiple water caps 111. The cleaned water is discharged and collected through the backwash outlet 131. The backwashing flow rate is 16-18 L / m. 2 s, the air for backwashing enters the lower cavity through the compressed air inlet 121 to perform air washing on the three-layer filter structure, and then is discharged through the exhaust pipe 14. Backwashing water washing or backwashing air washing are existing technologies. The water washing or air washing methods and principles are not described in detail here.

[0059] During application, depending on actual needs, the cavity 10 of tank 1 and the three-layer filter structure can be cleaned by selecting forward washing water washing, reverse washing water washing, reverse washing air washing, or a combination of both methods.

[0060] Furthermore, during use, after the three-layer filter structure has been used for a certain period of time, the filter media on the three-layer filter structure consisting of filter layer 101, filter layer 2, and filter layer 3 103 can be discharged and replaced through discharge port 15 to ensure long-term use of the filter.

[0061] In summary, compared with existing technologies, it has the following beneficial effects:

[0062] 1. By installing a hydrocyclone 2 inside the tank 1, the hydrocyclone 2 and filter screen 3 are used for filtration before the three-layer filtration structure is used for deep filtration. This effectively reduces the load on the three-layer filter media and prevents the filter media from caking due to excessive suspended solids in the water. At the same time, because the particles are small, the flow rate of the three-layer filtration structure can be restored through simple backwashing. This solves the problem that currently used multi-media filters tend to form caking on the upper part of the filter when filtering high-turbidity water, which leads to a decrease in filter flow rate. This achieves high-efficiency filtration of high-turbidity water.

[0063] 2. By setting up filter screen 3, the water after hydrocyclone separation is filtered again through filter screen 3, thereby further improving the filtration effect of hydrocyclone 2 on high turbidity water, so that the filter can achieve a better filtration effect.

[0064] Furthermore, the filter screen 3 on the upper part of the hydrocyclone 2 can effectively prevent the filter material from escaping through the overflow pipe of the hydrocyclone 2 during the backwashing process.

[0065] 3. By setting the hydrocyclone 2 to be detachably installed from the tank body 1, the hydrocyclone can be replaced and maintained. At the same time, setting the hydrocyclone 2 inside the tank body 1 saves the space occupied by the filter as a whole, making it easier to place and use the filter as a whole.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cyclone-type high-turbidity water filter, characterized in that, Includes a tank body (1) and a cyclone separator (2) installed in the cavity (10) of the tank body (1); A perforated plate (11) is provided inside the cavity (10), and the perforated plate (11) divides the cavity (10) into an upper cavity and a lower cavity; The hydrocyclone (2) is located in the upper cavity, and the upper cavity is provided with filter layer one (101), filter layer two (102) and filter layer three (103) from top to bottom, forming a three-layer filter material structure; The hydrocyclone (2) is provided with a raw water inlet (20) and a bottom flow outlet (21). The raw water inlet (20) is connected to the outside of the tank (1) through an inlet pipe and introduces the high turbidity water that needs to be filtered into the inner cavity of the hydrocyclone (2). The bottom flow outlet (21) is connected to the outside of the tank (1) through a flow pipe. The hydrocyclone (2) removes most of the suspended solids in the water by swirling separation and discharges them through the bottom flow outlet (21) of the hydrocyclone (2). The bottom of the tank (1) is provided with a connecting pipe (12) and a filtered water drain outlet (122). The filtered water drain outlet (122) is connected to the tank (1) through the connecting pipe (12) and discharges filtered water.

2. A cyclone-type high-turbidity water filter as described in claim 1, characterized in that, A filter screen (3) is installed on the top of the hydrocyclone (2).

3. A cyclone-type high-turbidity water filter as described in claim 2, characterized in that, The filter screen (3) has a pore size of ≤0.2mm.

4. A cyclone-type high-turbidity water filter as described in any one of claims 1-3, characterized in that, The connecting pipe (12) is also provided with a compressed air inlet (121), a backwash inlet (123) and a forward wash outlet (124); The top of the tank (1) is provided with a connecting pipe (13) and an exhaust pipe (14). The end of the connecting pipe (13) away from the tank (1) serves as the backwash outlet (131) for backwashing. A pressure gauge (132) and a sampling valve (133) are installed on the backwash outlet (131).

5. A cyclone-type high-turbidity water filter as described in claim 1, characterized in that, A sight glass (16) is provided on the side of the tank (1).

6. A cyclone-type high-turbidity water filter as described in claim 1, characterized in that, The hydrocyclone (2) and the tank (1) can be detached and installed.

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