Fine sand recovery device

Abstract

The utility model discloses a fine sand recovery device, including recovery groove and the water collecting groove of being fixed in the bottom of recovery groove, and the filter screen of installing fine sand of filter is installed at the tank bottom of recovery groove, and the filter screen corresponds the water collecting groove to make the water of filtering fall into the water collecting groove, and the bracket is installed at the bottom of water collecting groove, and the side of water collecting groove is close to the first water outlet pipe of setting of bottom position, still includes end sealing device, and one end of recovery groove is closed, and the other end is set as the opening, and the end sealing device is movable seal in the open end of recovery groove, and the sliding water outlet device, when the sliding water outlet device is along the open end position of recovery groove of sliding to recovery groove and pushes out the end sealing device, so that the fine sand of depositing in recovery groove is scraped out, and the device can realize self -cleaning.

Description

Technical Field

[0001] This utility model relates to a fine sand recovery device. Background Technology

[0002] In industries such as mining, construction, and mineral processing, it is often necessary to treat wastewater containing fine sand in order to achieve water resource recycling and effective recovery of fine sand resources. Traditional fine sand recovery devices typically include a recovery tank with a filter screen at the bottom. Fine sand in the wastewater settles in the recovery tank, while water passes through the filter screen into a receiving tank below before being discharged.

[0003] However, these devices have significant drawbacks in practical use. After prolonged use, the filter screen is easily clogged with fine sand, causing the water level in the recovery tank to rise, drainage efficiency to drop sharply, and even malfunctioning the equipment. In this case, the machine needs to be stopped and the accumulated fine sand manually cleaned, a time-consuming and labor-intensive process that severely impacts production efficiency.

[0004] Based on the above problems, we designed a fine sand recycling device that can achieve self-cleaning. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fine sand recycling device that can achieve self-cleaning.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A fine sand recovery device includes a recovery tank and a water receiving tank fixed to the bottom of the recovery tank. A filter screen for filtering fine sand is installed at the bottom of the recovery tank, corresponding to the water receiving tank so that the filtered water falls into the water receiving tank. A bracket is installed at the bottom of the water receiving tank, and a first water outlet pipe is provided on the side of the water receiving tank near the bottom. The device also includes:

[0008] An end sealing device is provided, wherein one end of the recycling tank is closed and the other end is open, and the end sealing device is movably sealed at the open end of the recycling tank.

[0009] A sliding water outlet device, which slides along the recovery tank to the opening end of the recovery tank and then pushes out the end sealing device so that the fine sand deposited in the recovery tank is scraped out;

[0010] A sand collecting hopper is installed via the bracket and is positioned below the opening of the recovery tank, so that fine sand scraped out by the sliding water outlet device falls into the sand collecting hopper.

[0011] Preferably, the end sealing device includes a sealing plate, a guide rod, a spring, an outer bracket, and a limiting cap. Two outer brackets are provided and fixed to the two outer side walls of the recycling tank respectively. Two guide rods are arranged in parallel. One end of the guide rod is fixedly installed through the outer bracket, and the other end of the guide rod passes through the sealing plate and is fitted with the limiting cap. The spring is sleeved on the guide rod and also acts between the limiting cap and the sealing plate. Under the action of the spring, the sealing plate moves towards the recycling tank and seals the opening end of the recycling tank.

[0012] Preferably, a leak-proof groove is provided on the side of the sealing plate facing the recycling tank. When the sealing plate is sealed to the open end of the recycling tank, the leak-proof groove is located below the recycling tank, so that water seeping from the gap between the sealing plate and the recycling tank falls into the leak-proof groove. A second water outlet pipe is provided at the bottom of the side of the leak-proof groove.

[0013] Preferably, an extension bracket is fixed to the end of the sealing plate facing the recycling tank, and an installation plate is fixed to the end of the extension bracket. When the sealing plate seals the recycling tank, the installation plate is located inside the recycling tank. A slot is provided on the outer wall of the installation plate, and an elastic rubber sealing sheet is installed through the slot. After the sealing sheet elastically deforms, it forms a seal with the inner wall of the recycling tank. When the sliding water outlet device slides along the recycling tank, it pushes the installation plate.

[0014] Preferably, the sliding water outlet device includes a water outlet tank, an extended water inlet pipe, a drive motor, limit switches, and a scraper. The bottom of the water outlet tank has a stepped channel, and a metal grid is installed on the stepped surface of the stepped channel. Two guide plates are fixed to the outer side of the water outlet tank. A guide groove that cooperates with the guide plates is provided on the outer wall of the recycling tank. The extended water inlet pipe is installed on the side of the water outlet tank away from the end sealing device. A rack is fixedly installed at the bottom of the extended water inlet pipe. The drive motor is fixedly installed via the bracket and connected to a controller. A gear that meshes with the rack is installed at the output end of the drive motor. The scraper is detachably installed at the bottom of the water outlet tank and scrapes out the fine sand accumulated at the bottom of the recycling tank as the water outlet tank slides. Two limit switches are provided, respectively installed on the side of the recycling tank near both ends. The limit switches are connected to the controller to control the drive motor. A trigger plate is fixed to the outer side of the guide plate, and the limit switch is triggered when the trigger plate slides to its limit position.

[0015] Preferably, a threaded pipe is installed at the end of the water outlet tank away from the extended water inlet pipe, and a push rod is threadedly connected to the threaded pipe, the push rod pushing the mounting plate.

[0016] The beneficial effects of this utility model are:

[0017] The core of this device lies in its sliding water outlet mechanism. When the filter screen is clear, this device drains water normally from the closed end of the recovery tank. When the filter screen gradually becomes clogged and the water level in the recovery tank rises, which is noticed by the operator, the drive motor can be activated, causing the entire outlet tank to slide along the guide channel towards the open end. During this process, a scraper fixed to the bottom of the outlet tank pushes all the fine sand deposited at the bottom of the tank towards the open end, achieving automatic and thorough cleaning. This fundamentally solves the problem of filter screen clogging and significantly reduces manual maintenance costs and downtime.

[0018] An end-sealing device consisting of a sealing plate, guide rod, and spring continuously presses the sealing plate against the opening of the recovery tank using the spring force, forming a stable and reliable passive seal. When sand discharge is required, the push rod at the front end of the sliding water outlet device pushes the mounting plate, overcoming the spring force to open the sealing plate. After sand discharge, the sliding device resets, and the spring force drives the sealing plate to automatically reseal. The entire process is smooth and reliable.

[0019] The sealing device is designed with multiple sealing safeguards. First, a flexible rubber sealing sheet fits tightly against the inner wall of the recycling tank, forming the first active seal. Second, the sealing plate itself serves as the second seal. Furthermore, an innovative leak-proof groove is incorporated into the sealing plate to collect any wastewater that may leak from gaps and discharge it centrally through a second outlet pipe, effectively preventing wastewater leakage and pollution of the working environment, demonstrating excellent environmental performance. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a perspective view of the device;

[0022] Figure 2 This is a schematic diagram of the installation of the end sealing device;

[0023] Figure 3 This is a schematic diagram showing the removal of the end sealing device;

[0024] Figure 4 This is a schematic diagram showing the installation of the mounting plate and sealing sheet;

[0025] Figure 5 This is a 3D view of the water outlet tank;

[0026] Figure 6 This is a cross-sectional view of the water outlet tank. Detailed Implementation

[0027] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0028] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0029] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 limitations on this utility model.

[0030] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] See Figure 1 The fine sand recovery device shown includes a recovery tank 1 and a water receiving tank 2 fixed to the bottom of the recovery tank 1. A filter screen 3 for filtering fine sand is installed at the bottom of the recovery tank 1, and the filter screen 3 corresponds to the water receiving tank so that the filtered water falls into the water receiving tank 2. A support 4 is installed at the bottom of the water receiving tank 2 and is fixed to the ground by casting. A first water outlet pipe 21 is provided on the side of the water receiving tank 2 near the bottom. The device also includes:

[0033] An end sealing device 5 is provided, wherein one end of the recycling tank 1 is closed and the other end is open, and the end sealing device 5 is movably sealed at the open end of the recycling tank 1.

[0034] The sliding water outlet device 6 slides along the recovery tank 1 to the opening end of the recovery tank 1 and then pushes out the end sealing device 5 so that the fine sand deposited in the recovery tank 1 is scraped out.

[0035] The sand collecting hopper 7 is installed via the bracket 4 and is located below the opening end of the recovery tank 1, so that the fine sand scraped by the sliding water discharge device 6 falls into the sand collecting hopper 7. The lower end of the sand collecting hopper 7 is open so that the collected fine sand can be discharged.

[0036] In the above technical solution, when the sliding water outlet device 6 is discharging water, it is located on the side of the recovery tank 1 away from the open end, so that the discharged water flows from the closed end to the open end of the recovery tank 1. With the filter screen 3 kept unobstructed, the problem of water accumulation inside the recovery tank 1 is avoided. Only when the filter screen 3 gradually becomes blocked to the left and more and more fine sand is deposited will the water level in the recovery tank 1 rise.

[0037] When the operator finds that the water inlet cannot be drained in time in the recycling tank 1, the water inlet needs to be shut off and the sliding water outlet device 6 should be activated to slide along the recycling tank 1 to push out the deposited fine sand and complete the self-cleaning process.

[0038] See Figure 2 and Figure 3 As shown, the end sealing device 5 includes a sealing plate 51, a guide rod 52, a spring 53, an outer bracket 54, and a limiting cap 55. Two outer brackets 54 are provided and fixed to the two outer side walls of the recycling tank 1 respectively. Two guide rods 52 are arranged in parallel. One end of the guide rod 52 is fixedly installed through the outer bracket 54, and the other end of the guide rod 52 passes through the sealing plate 51 and is then installed with the limiting cap 55. The spring 53 is sleeved on the guide rod 52 and also acts between the limiting cap 55 and the sealing plate 51. Under the action of the spring 53, the sealing plate 51 moves toward the recycling tank 1 and seals the opening end of the recycling tank 1.

[0039] The above technical solution provides an elastic self-sealing structure, which uses the elastic force of spring 53 to press the sealing plate 51 tightly so that the sealing plate 51 forms a seal against the opening end of the recycling tank 1.

[0040] See Figure 2As shown, a leak-proof groove 511 is provided on the side of the sealing plate 51 facing the recycling tank 1. When the sealing plate 51 is sealed at the open end of the recycling tank 1, the leak-proof groove 511 is located below the recycling tank 1, so that water seeping from the gap between the sealing plate 51 and the recycling tank 1 falls into the leak-proof groove 511. A second water outlet pipe 512 is provided at the bottom of the side of the leak-proof groove 511.

[0041] In the above technical solution, we have considered that the sealing performance of the sealing plate 51 may be compromised, which may lead to water leakage. Therefore, we designed the above-mentioned anti-leakage groove 511. The design of the anti-leakage groove 511 can drain the water that leaks from the sealing plate 51.

[0042] See Figure 2 and Figure 4 As shown, an extension bracket 513 is fixed to the end of the sealing plate 51 facing the recycling tank 1. An installation plate 515 is fixed to the end of the extension bracket 513. When the sealing plate 51 seals the recycling tank 1, the installation plate 515 is located inside the recycling tank 1. A slot (not shown) is provided on the outer wall of the installation plate 515. An elastic rubber sealing sheet 516 is installed through the slot. After the sealing sheet 516 elastically deforms, it forms a seal with the inner wall of the recycling tank 1. When the sliding water outlet device slides along the recycling tank, it pushes the installation plate.

[0043] In the above technical solution, the sealing sheet 516 is attached to the inner wall of the recycling tank 1 to form a first seal in the recycling tank 1, while the sealing plate 51 at this time plays a secondary sealing role.

[0044] See Figure 1 , Figure 5 and Figure 6As shown, the sliding water outlet device 6 includes a water outlet tank 61, an extended water inlet pipe 62, a drive motor 63, a limit switch 64, and a scraper 65. A stepped channel 66 is provided at the bottom of the water outlet tank 61, and a metal grid 67 is installed on the stepped surface of the stepped channel 66. The function of the metal grid 67 is to intercept large stones. A tank cover 68 is detachably installed at the upper end of the water outlet tank 61. Two guide plates 69 are fixed on the outer side of the water outlet tank 61. A guide groove 110 that cooperates with the guide plates 69 is provided on the outer wall of the recovery tank 1. The extended water inlet pipe 62 is installed on the side of the water outlet tank 61 away from the end sealing device 5. A rack 620 is fixedly installed at the bottom of the extended water inlet pipe 62. The drive motor 63 is fixedly installed through the bracket 4 and connected to a controller. (Not shown) The controller sets the number of forward and reverse rotations of the drive motor 63 so that when the start switch is pressed, the drive motor 63 first rotates forward and then reverses, causing the water outlet tank 61 to move towards the opening end of the recovery tank 1 and then return to its original position. The output end of the drive motor 63 is equipped with a gear 630 that meshes with the rack. The scraper 65 is detachably installed at the bottom of the water outlet tank and scrapes out the fine sand accumulated at the bottom of the recovery tank 1 as the water outlet tank 61 slides. Two limit switches 64 are provided and are respectively installed on the side of the recovery tank 1 near both ends. The limit switches 64 are connected to the controller to control the drive motor 63. A trigger plate 690 is fixed on the outside of the guide plate 69. When the trigger plate 690 slides to the limit position, it triggers the limit switch 65.

[0045] In the above technical solution, the key point is that the scraper 65 maintains a certain distance from the inner end face of the recycling tank 1 when the water tank 61 slides to the right. The reason is that the scraper 65 will also carry a small amount of fine sand during the reset process, and this part of fine sand needs to be cleaned manually regularly.

[0046] See Figure 5 As shown, a threaded pipe 661 is installed at the end of the water outlet tank 61 away from the extended water inlet pipe, and a push rod 662 is threadedly connected to the threaded pipe, which pushes the mounting plate.

[0047] The position of push rod 662 is threaded and adjustable. By adjusting the position of push rod 662, the timing of the sealing plate 51 being pushed out can be adjusted.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0050] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0051] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0052] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0053] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fine sand recovery device, comprising a recovery tank and a water receiving tank fixed to the bottom of the recovery tank, wherein a filter screen for filtering fine sand is installed at the bottom of the recovery tank, the filter screen corresponding to the water receiving tank so that the filtered water falls into the water receiving tank, a bracket is installed at the bottom of the water receiving tank, and a first water outlet pipe is provided on the side of the water receiving tank near the bottom, characterized in that: Also includes: An end sealing device is provided, wherein one end of the recycling tank is closed and the other end is open, and the end sealing device is movably sealed at the open end of the recycling tank. A sliding water outlet device, which slides along the recovery tank to the opening end of the recovery tank and then pushes out the end sealing device so that the fine sand deposited in the recovery tank is scraped out; A sand collecting hopper is installed via the bracket and is positioned below the opening of the recovery tank, so that fine sand scraped out by the sliding water outlet device falls into the sand collecting hopper.

2. The fine sand recovery device according to claim 1, characterized in that: The end sealing device includes a sealing plate, guide rods, springs, outer supports, and limiting caps. Two outer supports are provided and fixed to the two outer side walls of the recycling tank respectively. Two guide rods are arranged in parallel. One end of the guide rod is fixedly installed through the outer support, and the other end of the guide rod passes through the sealing plate and is fitted with the limiting cap. The spring is sleeved on the guide rod and also acts between the limiting cap and the sealing plate. Under the action of the spring, the sealing plate moves towards the recycling tank and seals the opening end of the recycling tank.

3. The fine sand recovery device according to claim 2, characterized in that: A leak-proof groove is provided on the side of the sealing plate facing the recycling tank. When the sealing plate is sealed to the open end of the recycling tank, the leak-proof groove is located below the recycling tank, so that water seeping from the gap between the sealing plate and the recycling tank falls into the leak-proof groove. A second water outlet pipe is provided at the bottom of the side of the leak-proof groove.

4. The fine sand recovery device according to claim 3, characterized in that: An extension bracket is fixed to the end of the sealing plate facing the recycling tank, and an installation plate is fixed to the end of the extension bracket. When the sealing plate seals the recycling tank, the installation plate is located inside the recycling tank. A slot is provided on the outer wall of the installation plate, and an elastic rubber sealing sheet is installed through the slot. After the sealing sheet elastically deforms, it forms a seal with the inner wall of the recycling tank. When the sliding water outlet device slides along the recycling tank, it pushes the installation plate.

5. The fine sand recovery device according to claim 4, characterized in that: The sliding water outlet device includes a water outlet tank, an extended inlet pipe, a drive motor, limit switches, and a scraper. The bottom of the water outlet tank has a stepped channel, and a metal grid is installed on the stepped surface of the channel. Two guide plates are fixed to the outer side of the water outlet tank. A guide groove that mates with the guide plates is provided on the outer wall of the recycling tank. The extended inlet pipe is installed on the side of the water outlet tank away from the end sealing device. A rack is fixedly installed at the bottom of the extended inlet pipe. The drive motor is fixedly installed via the bracket and connected to a controller. A gear that meshes with the rack is installed at the output end of the drive motor. The scraper is detachably installed at the bottom of the water outlet tank and scrapes out fine sand accumulated at the bottom of the recycling tank as the water outlet tank slides. Two limit switches are provided, respectively installed on the sides of the recycling tank near both ends. The limit switches are connected to the controller to control the drive motor. A trigger plate is fixed to the outer side of the guide plate, and the trigger plate triggers the limit switch when it slides to its limit position.

6. The fine sand recovery device according to claim 5, characterized in that: A threaded pipe is installed at the end of the water outlet tank away from the extended water inlet pipe, and a push rod is threadedly connected to the threaded pipe. The push rod pushes the mounting plate.

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