Quartz sand production wastewater treatment device

Abstract

The utility model discloses a quartz sand production wastewater treatment device which comprises a filtering tank body, a liquid inlet pipe, a cloth bag assembly, a back-flushing assembly and a floating object overflow assembly, the cloth bag assembly comprises a liquid baffle and a plurality of cloth bag units, and each cloth bag unit comprises a cloth bag, a cloth bag upper sleeving piece, a supporting plate piece and a cloth bag fixing piece; the supporting plate piece comprises a bottom plate, a fixing plate and a connecting piece. The back-flushing assembly comprises a back-flushing pipe and a back-flushing pump; the floating object overflow assembly is arranged on the liquid inlet pipe and comprises an overflow cavity and an overflow pipe. According to the utility model, suspended particles in wastewater can be effectively filtered out, and the equipment purchase cost and the cloth bag use cost are lower. The floaters with large sizes can overflow through the front flotage overflow assembly; through the arrangement of the cage frame and the supporting plate, the pressure of filtered substances on the cloth bag can be reduced, the risk of breakage of the cloth bag is reduced, the cloth bag is also convenient to take out, and the cloth bag can be cleaned through the rotational flow guide plate and the backflushing assembly.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for quartz sand production. Background Technology

[0002] In quartz sand production, processes such as mineral processing and sand washing generate a large amount of wastewater. Currently, this wastewater is typically treated by separating the sediment and the supernatant after sedimentation. The supernatant usually requires filtration to remove various floating impurities. Additionally, the water often contains a large amount of suspended particles, such as quartz sand powder. Membrane filtration devices can be used for suspended particles, but these devices are expensive, and the filter membranes, as consumables, are consumed quickly, resulting in high operating costs. Alternatively, prolonged sedimentation can reduce suspended solids, but this often requires a large sedimentation tank area. Summary of the Invention

[0003] The purpose of this invention is to provide a wastewater treatment device for quartz sand production to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides a wastewater treatment device for quartz sand production, comprising a filter tank, an inlet pipe, and a bag assembly. The filter tank is a hollow tank structure with an inlet pipe at the top and an outlet pipe at the bottom. A bag assembly is disposed in the internal space of the filter tank between the inlet and outlet pipes. The bag assembly includes a baffle plate and several bag units. The baffle plate has several through holes, and the bag units are disposed at the through holes. Each bag unit includes a bag, an upper bag assembly, a support plate, and a bag fixing component. The upper part of the bag is detachably fixed to the upper bag assembly. The support plate includes a bottom plate, a fixing plate, and a connector. The connector is a stainless steel rod or stainless steel chain located inside the bag, with its upper end fixed to the upper bag assembly and its lower end connected to the bottom plate and / or the fixing plate. The bottom plate is located on the lower outer side of the bag, and the fixing plate is located on the lower inner side of the bag. The bottom plate and the fixing plate are connected by bolts.

[0005] Furthermore, the filter tank is provided with an openable and closable lid, and the lid is provided with a vent pipe.

[0006] Furthermore, the bag assembly includes an outer tube and an inner tube, both of which have outwardly protruding edges at their tops. The outer diameter of the inner tube is smaller than the inner diameter of the outer tube, and the top of the bag is sandwiched between the outer and inner tubes. A connecting plate is provided at the top of the inner tube for connection with a connector. At least one spring is provided on the upper part of the connecting plate, and the spring has a pressure rod. The bag fixing component consists of two long strip plates, which are arranged opposite to each other on both sides of the through hole of the baffle plate. The upper part of the long strip plates has grooves, and the grooves face opposite directions.

[0007] Furthermore, a swirl guide plate is provided on the upper part of the inner tube, and the swirl guide plate is a spirally bent plate.

[0008] Furthermore, a cage frame is provided on the outer side of the lower through hole of the baffle plate, and the cage frame includes a plurality of metal rods arranged in a circumferential array.

[0009] Furthermore, the wastewater treatment device also includes a backflushing assembly, which includes a backflushing pipe and a backflushing pump; one end of the backflushing pipe is connected to the lower chamber of the baffle plate, and the other end passes through the baffle plate and extends to the height of the bottom of the filter bag. Multiple water outlet holes are provided on the outer side of the backflushing pipe located in the filter bag area; a backflushing pump is provided on the backflushing pipe.

[0010] Furthermore, the wastewater treatment device also includes a floating debris overflow component, which is disposed on the inlet pipe. The floating debris overflow component includes an overflow chamber and an overflow pipe. The overflow chamber is disposed on the inlet pipe, and the top height of the overflow chamber is higher than the top height of the inlet pipe. The inlet pipe inside the overflow chamber has an opening, and an inclined filter screen is disposed at the opening. A vertical baffle is disposed inside the overflow chamber, and the height of the baffle is higher than the top height of the inlet pipe but lower than the top height of the overflow chamber. The baffle divides the overflow chamber into two chambers, one of which is connected to the overflow pipe.

[0011] Furthermore, the filter screen is higher on the side facing the direction of water flow; the inlet pipe is inclined downwards, that is, it is lower on the side facing the direction of water flow.

[0012] This utility model proposes a wastewater treatment device for quartz sand production. It employs a bag filter to effectively remove suspended particles from the wastewater after preliminary sedimentation, while also reducing equipment purchase and bag usage costs. Structurally, a pre-mounted floating debris overflow component allows larger floating debris to overflow, reducing the amount entering the filter bag. Regarding the filter bag itself, the external cage and support plate design reduces pressure from the filtered material, minimizing the risk of bag rupture and facilitating bag removal. A vortex guide plate and backwash component allow for cleaning of the filter bag during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall scheme of one embodiment of the present utility model.

[0014] Figure 2 This is an enlarged schematic diagram of a floating object overflow component according to an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of an explosion in the bag area according to an embodiment of this utility model.

[0016] Figure 4 This is a partial wireframe diagram of one embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] As attached Figure 1-4 As shown, the quartz sand production wastewater treatment device involved in this utility model includes a filter tank 1, an inlet pipe 2, a floating matter overflow component 3, a filter bag component 4, and a backflushing component 5.

[0019] The filter tank 1 is a hollow tank structure with an openable and closable tank cover 11 on the top. The tank cover 11 is equipped with a vent pipe 12. The filter tank 1 has an inlet pipe 2 at the top and an outlet pipe at the bottom.

[0020] A filter bag assembly 4 is installed inside the filter tank 1 between the inlet pipe 2 and the outlet pipe. The filter bag assembly 4 includes a baffle plate 41 and several filter bag units 42. The baffle plate 41 is provided with several through holes, and the filter bag units 42 are disposed at the through holes.

[0021] Furthermore, the bag unit 42 includes a bag 420, a bag upper kit 421, a tray 422, and a bag fastener 423.

[0022] The upper part of the cloth bag 420 is detachably fixed to the upper bag assembly 421. The support plate 422 includes a base plate 4221, a fixing plate 4222, and a connector 4223. The connector 4223 is a stainless steel rod or stainless steel chain located inside the cloth bag 420. Its upper end is fixed to the upper bag assembly 421, and its lower end is connected to the base plate 4221 and / or the fixing plate 4222. The base plate is located on the lower part of the outer side of the cloth bag 420, and the fixing plate 4222 is located on the lower part of the inner cavity of the cloth bag 420. The base plate 4221 and the fixing plate 4222 are connected by a bolt structure, clamping the bottom surface of the inner cavity of the cloth bag 420 between the two. Through the setting of the support plate 422, most of the weight of the filtered material can be directly transferred to the upper bag assembly 421.

[0023] The upper part 421 of the bag includes an outer tube 4211 and an inner tube 4212. The top of both the outer tube 4211 and the inner tube 4212 is provided with an outward protruding edge. The outer diameter of the inner tube 4212 is smaller than the inner diameter of the outer tube 4211, and the difference between the two is the thickness of the bag. In use, the top of the bag is clamped between the outer tube 4211 and the inner tube 4212, and the bag is fixed by bolts connecting the protruding edges of the outer tube 4211 and the inner tube 4212.

[0024] A connecting plate a1 is provided at the top of the inner tube 4212 for connecting with the connector 4223. At least one spring a2 is provided on the upper part of the connecting plate a, and the spring a2 is provided with a pressure rod a3.

[0025] Furthermore, a swirl guide plate 4213 is provided on the upper part of the inner tube 4212. The swirl guide plate 4213 is a spirally bent plate used to guide the water flowing into the filter bag to form a swirl.

[0026] The bag fixing component 423 consists of two long strip plates, which are arranged opposite each other on both sides of the through hole of the liquid baffle 41. The upper part of the long strip plate is provided with a groove 4231, and the grooves 4231 face opposite directions. In use, the upper part of the bag fitting 421 is placed at the through hole of the liquid baffle 41, and the pressure rod a3 is pressed down to lock it into the groove 4231.

[0027] Furthermore, to limit the lateral deformation of the bag, a cage frame 411 is provided on the outer side of the lower through hole of the liquid baffle 41. The cage frame 411 includes a plurality of metal rods arranged in a circumferential array.

[0028] The backflushing assembly 5 includes a backflushing pipe 51 and a backflushing pump 52. One end of the backflushing pipe 51 is connected to the lower chamber of the baffle plate 41, and the other end passes through the baffle plate, extending to the bottom of the filter bag. Multiple water outlets are provided on the outer side of the backflushing pipe 51 located in the filter bag area. The backflushing pump 52 is installed on the backflushing pipe 51, which can flush the water filtered below the baffle plate 41 onto the filter bag through the water outlets on the backflushing pipe 51.

[0029] The floating debris overflow assembly 3 is disposed on the inlet pipe 2. The floating debris overflow assembly 3 includes an overflow chamber 31 and an overflow pipe 32. The overflow chamber 31 is disposed on the inlet pipe 2, and the height of the top of the overflow chamber 31 is higher than the height of the top of the inlet pipe 2. The inlet pipe 2 has an opening in the overflow chamber 31, and an inclined filter screen 33 is disposed at the opening. A vertical baffle 34 is disposed inside the overflow chamber 31. The height of the baffle 34 is higher than the height of the top of the inlet pipe 2 but lower than the height of the top of the overflow chamber 31. The baffle 34 divides the overflow chamber 31 into two chambers, one of which is connected to the overflow pipe 32.

[0030] Furthermore, the inclined filter screen 33 is positioned at a higher height on the side facing the water flow direction. Floating debris in the water is isolated by the filter screen and gradually rises under the influence of the water flow, then passes over the baffle plate 34 and flows out through the overflow pipe 32. It should be noted that the floating debris overflow component 3 is used to overflow smaller floating debris and foam; larger floating debris can be filtered out through the filter structure located at the water pump inlet connected to the inlet pipe 2.

[0031] Furthermore, the inlet pipe 2 is tilted downwards, meaning it is at a lower height on the side facing the direction of water flow. By setting a reasonable water volume, water can be prevented from flowing out of the overflow chamber 31.

[0032] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A wastewater treatment device for quartz sand production, comprising a filter tank, an inlet pipe, and a filter bag assembly; the filter tank is a hollow tank structure, with an inlet pipe at the upper part and an outlet pipe at the lower part; a filter bag assembly is disposed in the internal space of the filter tank between the inlet pipe and the outlet pipe, characterized in that, The bag assembly includes a liquid-blocking plate and several bag units. The liquid-blocking plate has several through holes, and the bag units are disposed at the through holes. Each bag unit includes a bag, a bag upper kit, a support plate, and a bag fixing component. The upper part of the bag is detachably fixed to the bag upper kit. The support plate includes a base plate, a fixing plate, and a connector. The connector is a stainless steel rod or stainless steel chain located inside the bag. Its upper end is fixed to the bag upper kit, and its lower end is connected to the base plate and / or the fixing plate. The base plate is located on the lower outer side of the bag, and the fixing plate is located on the lower inner side of the bag. The base plate and the fixing plate are connected by a bolt structure.

2. The wastewater treatment device for quartz sand production according to claim 1, characterized in that, The filter tank is equipped with an openable and closable lid, and the lid is fitted with a vent pipe.

3. The wastewater treatment device for quartz sand production according to claim 1, characterized in that, The bag assembly includes an outer tube and an inner tube. Both the outer and inner tubes have outwardly protruding edges at their tops. The outer diameter of the inner tube is smaller than the inner diameter of the outer tube. The top of the bag is sandwiched between the outer and inner tubes. A connecting plate is provided on the top of the inner tube for connection with a connector. At least one spring is provided on the upper part of the connecting plate, and the spring has a pressure rod. The bag fixing component consists of two long strip plates, which are arranged opposite to each other on both sides of the through hole of the baffle plate. The upper part of the long strip plates has grooves, and the grooves face opposite directions.

4. The wastewater treatment device for quartz sand production according to claim 3, characterized in that, A swirl guide plate is provided on the upper part of the inner tube. The swirl guide plate is a spirally bent plate.

5. The wastewater treatment device for quartz sand production according to claim 3, characterized in that, A cage frame is provided on the outside of the lower through hole of the baffle plate, and the cage frame includes multiple metal rods arranged in a circumferential array.

6. The wastewater treatment device for quartz sand production according to claim 1, characterized in that; The wastewater treatment device also includes a backflushing assembly, which includes a backflushing pipe and a backflushing pump. One end of the backflushing pipe is connected to the lower chamber of the baffle plate, and the other end passes through the baffle plate and extends to the height of the bottom of the filter bag. Multiple water outlet holes are provided on the outer side of the backflushing pipe located in the filter bag area. The backflushing pipe is equipped with a backflushing pump.

7. The wastewater treatment device for quartz sand production according to claim 1, characterized in that; The wastewater treatment device further includes a floating debris overflow component, which is installed on the inlet pipe. The floating debris overflow component includes an overflow chamber and an overflow pipe. The overflow chamber is installed on the inlet pipe, and the top of the overflow chamber is higher than the top of the inlet pipe. The inlet pipe inside the overflow chamber has an opening, and an inclined filter screen is installed at the opening. A vertical baffle is installed inside the overflow chamber, and the height of the baffle is higher than the top of the inlet pipe but lower than the top of the overflow chamber. The baffle divides the overflow chamber into two chambers, one of which is connected to the overflow pipe.

8. The wastewater treatment device for quartz sand production according to claim 7, characterized in that; The filter screen is higher on the side facing the direction of water flow; the inlet pipe is inclined downwards, that is, it is lower on the side facing the direction of water flow.

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