Multistage filtering type quartz sand filter

Abstract

The utility model provides a multi-stage filtering type quartz sand filter and belongs to the technical field of filters. Comprising a filter body; the filtering water inlet is formed in the top end of the filter body; the filtering part is positioned in the filter body and is used for filtering a water source entering from the filtering water inlet; the extruding part is positioned in the filter body and is arranged to extrude the filtering part so as to reduce a gap between the quartz sand in the filtering part; the power supply part is mounted at the top end of the filter body and is used for supplying energy to the extrusion part. By arranging the buffer piece, the speed of water flow impacting the filtering part is reduced, and the situation that gaps between quartz sand of the filtering part are increased, so that the filtering effect is reduced is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a multi-stage filtering quartz sand filter. Background Art

[0002] The multi-stage quartz sand filter is a highly efficient water treatment equipment. Its working principle mainly relies on the physical filtering effect of quartz sand and other filter media. When water flows through the multi-stage quartz sand layer, impurities such as suspended matter, particulate matter, and organic matter in the water will be gradually intercepted, thereby achieving the purpose of clarifying the water quality.

[0003] The advantage of this filter is that its filtering effect is stable and reliable, and it can effectively remove various impurities in the water and improve the water quality. At the same time, the multi-stage filtration design can ensure a more thorough filtering effect and reduce water quality fluctuations. In addition, quartz sand as a filter medium has the characteristics of wear resistance and corrosion resistance, long service life and low maintenance cost.

[0004] In the prior art, the filter layer of the multi-stage filtration quartz sand filter will change due to long-term water flow impact, which will cause the gaps between the quartz sand particles to change, thereby affecting its filtration performance and causing a decrease in the filtration effect. In addition, after long-term use, the multi-stage filtration quartz sand filter needs to be backwashed to remove impurities in the quartz sand. During the backwashing process, the gaps between the quartz sand particles will also change. Therefore, the present application provides a multi-stage filtration quartz sand filter to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a multi-stage filtering quartz sand filter to solve the problem that the filter layer of the existing multi-stage filtering quartz sand filter will cause the gaps between the quartz sand particles to change due to long-term water flow impact, thereby affecting its filtering performance and causing the filtering effect to decrease. In addition, after long-term use, the multi-stage filtering quartz sand filter needs to be backwashed to remove impurities in the quartz sand. During the backwashing process, the gaps between the quartz sand particles will also change.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a multi-stage filtering quartz sand filter, comprising: a filter body; a filter water inlet, which is opened at the top of the filter body; a filter part, which is located in the filter body and is used to filter the water source entering through the filter water inlet; an extrusion part, which is located in the filter body and is configured to reduce the gap between the quartz sand in the filter part by extruding the filter part; a power supply part, which is installed at the top of the filter body and is used to supply energy to the extrusion part.

[0007] Preferably, the extrusion part includes: a fixed plate installed on the top of the inner wall of the filter body; an extrusion plate located in the filter body; a plurality of groups of electric push rods, all installed between the fixed plate and the extrusion plate, and configured to drive the extrusion plate to move upward or downward; two groups of through grooves, respectively opened on the fixed plate and the extrusion plate, and the longitudinal axes of the two groups of through grooves are in the same straight line with the longitudinal axis of the filter water inlet.

[0008] Preferably, the extrusion part further comprises: an anti-overflow ring, which is installed on the extrusion plate and arranged around the through groove on the extrusion plate, and is used to prevent quartz sand from staying above the extrusion plate during the extrusion process.

[0009] Preferably, it also includes: a buffer member, located in the extrusion part, for mitigating the impact of water flow on the filter part.

[0010] Preferably, the buffer member includes: a fixing rod, located on the fixing plate, one end of which is connected to the through groove on the fixing plate; a supporting rod, located in the extrusion part, the top end of which is connected to the fixing rod; and a flow-delaying plate, installed on the supporting rod, for slowing down the water flow between the filter inlet and the filter part.

[0011] Preferably, it also includes: a backwash drain port, located at the top of the filter body, for discharging filtered water of the backwash filter part; and a filter drain port, located at the bottom of the filter body, for discharging clean water after filtration.

[0012] Preferably, the radius of the outermost circle of the slow flow plate is the same as the radius of the outermost circles of the two groups of through grooves.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects: 1. In the above scheme, by providing a buffer, the speed of water flow impacting the filter part is slowed down, preventing the gap between the quartz sand in the filter part from increasing, thereby preventing the filtering effect from being reduced.

[0014] 2. By setting the extrusion part, when the gaps between the quartz sands in the filter part increase, the filter part can be squeezed to reduce the gaps between the quartz sands and restore the filtering effect of the filter part; in addition, after the filter tank is backwashed, the gaps between the quartz sands in the filter part will also increase. By squeezing with the extrusion part, the filter part can be made tighter and the filtering effect can be better.

[0015] 3. By setting an anti-overflow ring, when the extrusion part squeezes the filter part, due to the existence of the through groove, part of the quartz sand will enter the top of the extrusion plate, resulting in a reduction of quartz sand, thereby reducing the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and enable those skilled in the relevant art to make and use the present disclosure.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the extrusion part in the utility model;

[0019] Figure 3 It is a structural schematic diagram of another state of the extrusion part in the utility model;

[0020] Figure 4 It is a front sectional view of the utility model.

[0021] [Reference Signs]

[0022] 1. Filter body; 2. Filter water inlet; 3. Filter part; 4. Power supply part; 5. Fixed plate; 6. Extrusion plate; 7. Electric push rod; 8. Through groove; 9. Anti-overflow ring; 10. Fixed rod; 11. Support rod; 12. Slow flow plate; 13. Backwash drain outlet; 14. Filter drain outlet.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of a multi-stage filtration quartz sand filter provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] Embodiment 1: Figures 1 to 4 As shown, the embodiment of the utility model provides a multi-stage filtering quartz sand filter, comprising: a filter body 1; a filter water inlet 2, which is opened at the top of the filter body 1; a filter part 3, which is located in the filter body 1 and is used to filter the water source entering the filter water inlet 2; an extrusion part, which is located in the filter body 1 and is configured to reduce the gap between the quartz sand in the filter part 3 by extruding the filter part 3; a power supply part 4, which is installed at the top of the filter body 1 and is used to supply energy to the extrusion part; the power supply part 4 adopts a power supply box adopting

[0026] The power supply box produced by Entrans is easy to move and use; the filter part 3 is divided into an anthracite layer, a fine sand layer, a coarse sand layer and a gravel support layer from top to bottom to form a filter for the water source.

[0027] like Figures 2 to 4 As shown, the extrusion part includes: a fixed plate 5, installed on the top of the inner wall of the filter body 1; an extrusion plate 6, located in the filter body 1; a plurality of groups of electric push rods 7, all installed between the fixed plate 5 and the extrusion plate 6, and configured to drive the extrusion plate 6 to move upward or downward; two groups of through grooves 8, respectively opened on the fixed plate 5 and the extrusion plate 6, and the longitudinal axes of the two groups of through grooves 8 are in the same straight line with the longitudinal axis of the filter water inlet 2.

[0028] like Figure 2 As shown, the extrusion part further includes: an anti-overflow ring 9, which is installed on the extrusion plate 6 and arranged around the through groove 8 on the extrusion plate 6, and is used to prevent the quartz sand from staying above the extrusion plate 6 during the extrusion process.

[0029] like Figures 2 to 4 As shown, it also includes: a buffer member, located in the extrusion part, for mitigating the impact of water flow on the filter part 3.

[0030] like Figures 2 to 4 As shown, the buffer member includes: a fixed rod 10, which is located on the fixed plate 5, and one end of the fixed rod 10 is connected to the through groove 8 on the fixed plate 5; a support rod 11, which is located in the extrusion part, and the top of the support rod 11 is connected to the fixed rod 10; a slow flow plate 12, which is installed on the support rod 11 and is used to slow down the speed of water flow between the filter water inlet 2 and the filter part 3; the slow flow plate 12 is spirally arranged around the support rod 11 to increase the distance that the water flows, thereby achieving the purpose of reducing the water flow speed.

[0031] like Figure 1 and Figure 4 As shown, it also includes: a backwash drain port 13, located at the top of the filter body 1, for discharging filtered water from the backwash filter part 3; and a filter drain port 14, located at the bottom of the filter body 1, for discharging clean water after filtration.

[0032] The outermost radius of the slow-flow plate 12 is the same as the outermost radius of the two groups of through grooves 8 , thereby reducing the water flow passing through the outside of the buffer, and reducing the slow-flow effect of the slow-flow plate 12 .

[0033] The technical solution provided by the utility model is to introduce the water source to be filtered into the filter body 1 through a water pump and a control valve, and the water source enters the filter body 1 through the filter water inlet 2. Under the action of the slow flow plate 12, the flow speed of the water source is relatively low, and it flows through between the two groups of through grooves 8, falls into the filter part 3, and then begins to be filtered and discharged from the filter drain port 14; in addition, under the action of the buffer, the water flow speed is reduced, and the gap between the quartz sand in the filter part 3 is increased, and the overall horizontal height of the filter part 3 rises. At this time, the electric push rod 7 powered by the power supply part 4 pushes the extrusion plate 6 downward, so that the extrusion plate 6 squeezes the filter part 3 downward, thereby reducing the gap between the quartz sand in the filter part 3, thereby restoring the filtering effect of the filter part 3; at the same time, after long-term use, the filter body 1 needs to be backwashed, and the impurities in the quartz sand are discharged from the backwash drain port 13 along with the filtered water. At this time, the gap between the quartz sand in the filter part 3 will also increase, which can also be squeezed by the extrusion part.

[0034] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-stage filtration quartz sand filter, characterized in that: include: Filter body (1); A filter water inlet (2) is provided at the top of the filter body (1); A filter portion (3) is located in the filter body (1) and is used to filter water entering through the filter water inlet (2); An extrusion portion, located in the filter body (1), and configured to reduce the gap between the quartz sand in the filter portion (3) by extruding the filter portion (3); The power supply part (4) is installed at the top of the filter body (1) and is used to supply energy to the extrusion part.

2. The multi-stage filtration quartz sand filter according to claim 1, characterized in that: The extrusion portion comprises: A fixing plate (5) is mounted on the top of the inner wall of the filter body (1); An extrusion plate (6) is located in the filter body (1); A plurality of groups of electric push rods (7), each of which is installed between the fixed plate (5) and the extrusion plate (6), and is configured to drive the extrusion plate (6) to move upward or downward; Two groups of through grooves (8) are respectively formed on the fixed plate (5) and the extrusion plate (6), and the longitudinal axes of the two groups of through grooves (8) are in the same straight line as the longitudinal axis of the filter water inlet (2).

3. The multi-stage filtration quartz sand filter according to claim 2, characterized in that: The extrusion portion further comprises: An anti-overflow ring (9) is mounted on the extrusion plate (6) and is arranged around the through groove (8) on the extrusion plate (6) to prevent quartz sand from staying above the extrusion plate (6) during the extrusion process of the extrusion plate (6).

4. The multi-stage filtration quartz sand filter according to claim 1, characterized in that: Also includes: The buffer is located in the extrusion portion and is used to mitigate the impact of water flow on the filter portion (3).

5. The multi-stage filtration quartz sand filter according to claim 4, characterized in that: The buffer member comprises: A fixing rod (10) is located on the fixing plate (5), and one end of the fixing rod (10) is connected to a through slot (8) on the fixing plate (5); A support rod (11) is located in the extrusion portion, and a top end of the support rod (11) is connected to the fixing rod (10); The slow flow plate (12) is mounted on the support rod (11) and is used to slow down the speed of water flow between the filter water inlet (2) and the filter part (3).

6. The multi-stage filtration quartz sand filter according to claim 1, characterized in that: Also includes: A backwash drain port (13), located at the top of the filter body (1), and used to discharge filtered water from the backwash filter portion (3); The filter drain port (14) is located at the bottom of the filter body (1) and is used to discharge the filtered clean water.

7. The multi-stage filtration quartz sand filter according to claim 5, characterized in that: The radius of the outermost circle of the slow flow plate (12) is the same as the radius of the outermost circles of the two groups of through grooves (8).

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