Sandstone impurity filtering device

Abstract

A gravel impurity filtering device belongs to the technical field of gravel impurity filtering for buildings and comprises a frame and a screening assembly, a funnel-shaped filter screen is obliquely arranged in the frame, the small-diameter end of the filter screen is arranged close to the lower bottom of the frame, a fine sand storage space is formed by the filter screen and the side wall of the frame, and a slag outlet is formed in the lower bottom of the frame; the screening assembly comprises a reel feeding machine and a flow guide part, one end of the reel feeding machine is arranged at the small-diameter end of the filter screen, the reel feeding machine is rotatably connected with the lower bottom of the frame and used for conveying sand and stones at the bottom of the frame to the position above the frame, the slag outlet is formed in the peripheral side of the reel feeding machine, and the flow guide part is arranged at the other end of the reel feeding machine and used for conveying the sand and stones to the position above the frame. The sand screening device is used for limiting the movement path of sand and gravel, repeated screening of the sand and gravel is achieved through the reel feeding machine, fine sand at the bottom of the frame is screened out, the situation that the fine sand accumulated at the bottom of the frame and in gaps of impurities cannot be screened is avoided, and the separation rate of the fine sand is increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sand and stone impurity filtering for building, and particularly relates to a sand and stone impurity filtering device. BACKGROUND

[0002] The existing sand and stone impurity filtering process mainly relies on manual impurity filtering, and such a filtering method has low filtering efficiency and is prone to blockage, causing inconvenience in use.

[0003] For example, the invention patent with the publication number "CN202020204234.9" discloses a sand and stone rapid impurity filtering device in the field of building, which comprises an outer frame, a first motor fixedly connected to the bottom of the inner wall of the outer frame, a filter frame fixedly connected to one end of the output shaft of the first motor, a buffer device fixedly connected to the two sides of the filter frame, a horizontal plate in contact with the bottom of the buffer device, the horizontal plate being fixedly connected to one side of the inner wall of the outer frame, a rotating seat fixedly connected to the two sides of the outer frame, a slope plate rotatably connected to one side of the rotating seat, the slope plate being fixedly connected to one side of the inner wall of the outer frame through a spring, and a material receiving frame provided on the two sides of the bottom of the outer frame through a ball. The sand and stone rapid impurity filtering device in the field of building achieves the purpose of facilitating rapid impurity filtering of sand and stone, can stir the sand and stone during filtering, greatly improves the filtering efficiency, and effectively prevents the blockage of the filtering device by sand and stone, and is convenient to use.

[0004] The above-mentioned invention patent achieves the purpose of rapid impurity filtering of sand and stone, but only filters the sand and stone once, and the filtered sand and stone (containing impurities and fine sand) will be accumulated at the bottom of the filter frame. At this time, the fine sand at the bottom of the filter frame cannot be separated from the impurities, resulting in poor separation rate of the fine sand. SUMMARY

[0005] Therefore, it is necessary to provide a sand and stone impurity filtering device which can solve the problem of poor separation rate of fine sand caused by the fact that the fine sand at the bottom of the filter frame cannot be separated from the impurities.

[0006] The solution of the application to solve the technical problem is as follows:

[0007] A sand and stone impurity filtering device comprises:

[0008] A frame, an inclined funnel-shaped filter screen is arranged in the frame, the small-diameter end of the filter screen is arranged close to the lower bottom of the frame, the side wall of the filter screen and the frame forms a fine sand storage space, and a slag outlet is formed in the lower bottom of the frame;

[0009] The screening assembly comprises a winch feeder and a flow guide, one end of the winch feeder is arranged at the small-diameter end of the filter screen and is rotatably connected to the lower bottom of the frame for transporting the sand and stones at the bottom of the frame to the upper side of the frame, the slag outlet is arranged on the side of the winch feeder, and the flow guide is arranged at the other end of the winch feeder for limiting the movement path of the sand and stones.

[0010] Preferably, a plurality of buffer members are arranged between the filter screen and the frame, the buffer member comprises a buffer rod and an abutting block, one end of the buffer rod is connected to the side wall of the frame, the abutting block is connected to the other end of the buffer rod, and the abutting block is in contact with the filter screen.

[0011] Preferably, the frame bottom is symmetrically provided with a baffle, and the frame bottom is provided with a clamping groove, the baffle and the clamping groove are in sliding connection, and the baffle is used for blocking the slag outlet.

[0012] Preferably, the flow guide comprises a mounting ring and a flow guide plate, the mounting ring is sleeved on the other end of the winch feeder, the flow guide plate is arranged on the mounting ring, and the flow guide plate is arranged in an inclined downward manner.

[0013] Preferably, the device further comprises a concave collecting frame, the concave collecting frame is arranged below the frame, at least one impurity through hole is arranged on the upper end surface of the concave collecting frame, the impurity through hole is in communication with the slag outlet, the impurity through hole has a first position and a second position, the impurity through hole can be switched between the first position and the second position, when the impurity through hole is in the first position, the impurity through hole is not in communication with the slag outlet, and when the impurity through hole is in the second position, the impurity through hole is in communication with the slag outlet.

[0014] Preferably, the device further comprises a bottom plate, an extension member and a rotating member, the bottom plate is provided below with a roller, the extension member is arranged on the upper end surface of the bottom plate and abuts against one end of the concave collecting frame, and the rotating member is arranged on the other end of the concave collecting frame and is fixedly connected to the bottom plate.

[0015] The technical scheme of the sand and stone impurity filtering device can achieve the following beneficial effects:

[0016] The winch feeder is used for repeatedly screening the sand and stones, and the fine sand at the bottom of the frame is screened out, so that the fine sand accumulated in the gaps of the stones and impurities at the bottom of the frame can be screened out, thereby improving the separation rate of the fine sand.

[0017] The flow guide can limit the movement path of the sand and stones, so that the sand and stones can better fall onto the filter screen, thereby improving the impurity removal efficiency of the sand and stones.

[0018] The slag outlet can discharge the stones and impurities at the bottom of the frame, avoid the decrease of the available volume of the frame due to the accumulation of the stones and impurities, and reduce the load of the sandstone filtering device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view of the sandstone filtering device in the application.

[0020] Figure 2 It is Figure 1 It is an enlarged view of A.

[0021] Figure 3 It is a top view of the sandstone filtering device in the application.

[0022] Figure 4 It is a matching relationship diagram of the concave collecting frame and the bottom plate in the application.

[0023] In the figure: frame 10, filter screen 101, slag outlet 102, baffle 103, clamping groove 104, screening assembly 20, winch feeder 201, flow guide 202, mounting ring 2021, flow guide plate 2022, buffer 30, buffer rod 301, abutting block 302, concave collecting frame 40, impurity through hole 401, bottom plate 50, roller 501, telescopic member 60, rotating member 70. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0025] Please refer to Figures 1 to 4 A sandstone filtering device, comprising:

[0026] Frame 10, an inclined funnel-shaped filter screen 101 is arranged in the frame 10, the small-diameter end of the filter screen 101 is close to the lower bottom of the frame 10, and the filter screen 101 and the side wall of the frame 10 form a fine sand storage space, and a slag outlet 102 is formed on the lower bottom of the frame 10;

[0027] Screening assembly 20, the screening assembly 20 includes a winch feeder 201 and a flow guide 202, one end of the winch feeder 201 is arranged at the small-diameter end of the filter screen 101, and is rotatably connected to the lower bottom of the frame 10, for transporting the sandstone at the bottom of the frame 10 to the upper side of the frame 10, the slag outlet 102 is arranged on the side of the winch feeder 201, and the flow guide 202 is arranged at the other end of the winch feeder 201, for limiting the movement path of the sandstone.

[0028] The purpose of the sand and stone impurity removal is to obtain fine sand to remove the larger stones and impurities therein. Generally, the sand and stone impurity removal is to place the screen mesh on the ground in an inclined manner, and the sand and stone is poured on the inclined screen mesh by manual or mechanical operation. The fine sand falls on the back of the screen mesh, and the larger stones, impurities and part of the fine sand fall on the front of the screen mesh. At this time, in order to improve the screening rate of the fine sand, the larger stones, impurities and part of the fine sand falling on the front of the screen mesh need to be screened for multiple times, which is time-consuming and laborious. Alternatively, a mechanical device is used for sand and stone impurity removal operation. The fine sand is caused to flow out of the mechanical device by the stirring shaft, and the larger stones, impurities and part of the fine sand are left in the mechanical device. At this time, a large amount of stones, impurities and part of the fine sand will be accumulated at the bottom of the mechanical device, which causes the fine sand to be unable to be separated from the stones and impurities, and the separation rate of the fine sand is poor.

[0029] In order to avoid this situation, the sand and stone impurity removal device is provided. When the device is installed, the frame 10 is in a barrel shape, and the upper end of the frame 10 is provided with a feeding end for adding sand and stone into the frame 10. The funnel-shaped screen mesh 101 is arranged in the barrel-shaped frame 10, the size of the large-diameter end of the funnel-shaped screen mesh 101 is equal to the inner diameter of the frame 10, and the size of the small-diameter end of the funnel-shaped screen mesh 101 is smaller than the inner diameter of the frame 10 and larger than the size of the winch feeder 201. In other words, the winch feeder 201 does not collide with the small-diameter end of the screen mesh 101 during rotation, and the flow guide 202 is arranged at the other end of the winch feeder 201, i.e. the flow guide 202 is arranged at the feeding end of the frame 10. The advantages of this arrangement are that when the sand and stone moves to the upper end (top end) of the winch feeder 201, the sand and stone falls on the screen mesh 101 under the action of the flow guide 202, and the flow guide 202 can rotate with the rotation of the winch feeder 201 during use.

[0030] Meanwhile, a fine sand outlet can be formed on the side wall of the frame 10 to facilitate the discharge of the fine sand in the fine sand storage space.

[0031] Specifically, during installation, the winch feeder 201 is installed at the center of the small-diameter end region of the funnel-shaped screen mesh 101 in a vertical manner, and a driving device (such as a motor) is arranged between the winch feeder 201 and the lower bottom of the frame 10 to drive the winch feeder 201 to rotate during use.

[0032] The slag outlet 102 is arranged around the winch feeder 201, and the slag outlet 102 is arranged between the winch feeder 201 and the filter screen 101, so as to facilitate the discharge of the stones and impurities accumulated at the bottom of the frame 10, avoid the decrease of the available volume of the frame 10 due to the accumulation of the stones and impurities, and reduce the load of the sandstone filtering device.

[0033] The use steps of the sandstone filtering device are as follows: the sandstone is poured into the frame 10 from the feeding end, a part of the sandstone directly contacts the filter screen 101, so as to separate the fine sand from the stones and impurities, and then the stones and impurities flow along the filter screen 101 to the bottom of the frame 10, and the other part of the sandstone directly falls to the bottom of the frame 10. At this time, the winch feeder 201 starts to work, and the winch feeder 201 transports the sandstone at the bottom of the frame 10 from bottom to top in the process of rotation, so as to contact the sandstone at the bottom of the frame 10 with the filter screen 101, and achieve the purpose of removing the impurities from the sandstone. In addition, the winch feeder 201 is always in a rotating state during use, so as to repeatedly transport the sandstone at the bottom of the frame 10 from the bottom to the top of the winch feeder 201, repeatedly screen the sandstone at the bottom of the frame 10, improve the separation rate of the fine sand, and also avoid the residual fine sand in the gaps of the sandstone and impurities.

[0034] The sandstone filtering device can achieve the following beneficial effects:

[0035] The winch feeder 201 is used to repeatedly screen the sandstone, so as to screen the fine sand at the bottom of the frame 10, avoid the fine sand accumulated in the gaps of the stones and impurities at the bottom of the frame 10 from being screened, and improve the separation rate of the fine sand.

[0036] The flow guide 202 can limit the movement path of the sandstone, so that the sandstone can better fall on the filter screen 101, and improve the sandstone impurity removal efficiency.

[0037] The slag outlet 102 can discharge the stones and impurities at the bottom of the frame 10, avoid the decrease of the capacity of the frame 10 due to the accumulation of the stones and impurities, and reduce the load of the sandstone filtering device.

[0038] In a preferred embodiment, a plurality of buffer members 30 are arranged between the filter screen 101 and the frame 10, the buffer member 30 comprises a buffer rod 301 and an abutting block 302, one end of the buffer rod 301 is connected with the side wall of the frame 10, the abutting block 302 is connected with the other end of the buffer rod 301, and the abutting block 302 contacts the filter screen 101.

[0039] When the sand and stone contacts the filter screen 101, an impact force is applied to the filter screen 101, causing the filter screen 101 to deform (a pit is formed on the filter screen 101), or even break. At this time, a plurality of buffer rods 301 are arranged between the filter screen 101 and the frame 10. The length of the buffer rod 301 is matched with the distance between the filter screen 101 and the frame 10. In order to avoid the buffer rod 301 from puncturing the filter screen 101, an abutting block 302 is arranged at the end of the buffer rod 301. The abutting block 302 contacts the filter screen 101, reducing the force applied to the filter screen 101 by the buffer rod 301 (the larger the area, the smaller the local force).

[0040] At the same time, when the sand and stone impact the filter screen 101, a downward impact force is applied to the filter screen 101. At this time, under the action of the buffer rod 301, the buffer rod 301 has a supporting effect on the filter screen 101. The length of the buffer rod 301 does not change, thereby ensuring that the filter screen 101 does not displace in the frame 10.

[0041] Further, the frame 10 is symmetrically provided with a baffle 103 at the bottom, and the frame 10 is provided with a clamping groove 104 at the bottom. The baffle 103 is in sliding connection with the clamping groove 104, and is used for plugging the slag outlet 102.

[0042] In order to avoid the sand and stone from being discharged from the frame 10 through the slag outlet 102 after being screened once, the clamping groove 104 is arranged at the bottom of the frame 10. Then, the baffle 103 is inserted into the clamping groove 104. When it is necessary to discharge the stones and impurities from the slag outlet 102, the baffle 103 is pulled out of the clamping groove 104, so that the slag outlet 102 is not blocked, and the discharge of the stones and impurities is realized. When it is necessary to seal the bottom of the frame 10, the baffle 103 is inserted into the clamping groove 104, and the slag outlet 102 is plugged.

[0043] At the same time, by adjusting the opening and closing of the slag outlet 102, the sand and stone at the bottom of the frame 10 can be screened multiple times.

[0044] In a preferred embodiment, the flow guide 202 comprises a mounting ring 2021 and a flow guide plate 2022. The mounting ring 2021 is sleeved on the other end of the winch feeder 201. The flow guide plate 2022 is arranged on the mounting ring 2021, and the flow guide plate 2022 is arranged obliquely downward.

[0045] In order to facilitate the installation of the flow guide 202 on the winch feeder 201, the flow guide 202 is provided with a mounting ring 2021 (which can be a clamp) and a flow guide plate 2022. The mounting ring 2021 is sleeved on the rotating shaft of the winch feeder 201, and the flow guide plate 2022 is arranged on the mounting ring 2021. The flow guide plate 2022 is arranged obliquely, that is, the included angle between the flow guide plate 2022 and the winch feeder 201 is an acute angle. Therefore, the sand and stones transported by the winch feeder 201 will form a parabolic trajectory under the action of the flow guide plate 2022 and then fall onto the filter screen 101, so as to achieve the purpose of repeatedly screening the sand and stones at the bottom of the frame 10.

[0046] In a specific embodiment, a concave collecting frame 40 is further included, which is arranged below the frame 10. The upper end surface of the concave collecting frame 40 is provided with at least one impurity through hole 401, which is in communication with the slag outlet 102 and has a first position and a second position. The impurity through hole 401 can be switched between the first position and the second position. When in the first position, the impurity through hole 401 is not in communication with the slag outlet 102. When in the second position, the impurity through hole 401 is in communication with the slag outlet 102.

[0047] The concave collecting frame 40 is arranged below the frame 10. In a specific use, the impurity through hole 401 is arranged on the upper end surface of the concave collecting frame 40. When the baffle 103 is pulled out of the clamping groove 104, the impurity through hole 401 is in the second position, that is, the impurity through hole 401 is in communication with the slag outlet 102. When the baffle 103 is inserted into the clamping groove 104, the impurity through hole 401 is in the first position, that is, the impurity through hole 401 is not in communication with the slag outlet 102. This arrangement has the advantages of facilitating the centralized collection of stones and impurities and allowing the fine sand in the stones and impurities to be screened again, so as to improve the separation rate of fine sand.

[0048] Specifically, a bottom plate 50, an extension piece 60 and a rotating piece 70 are further included. The bottom plate 50 is provided below with a roller 501. The extension piece 60 is arranged on the upper end surface of the bottom plate 50 and abuts against one end of the concave collecting frame 40. The rotating piece 70 is arranged on the other end of the concave collecting frame 40 and is fixedly connected with the bottom plate 50.

[0049] In order to facilitate the movement of the concave collecting frame 40, the bottom plate 50 is provided with a roller 501, and the concave collecting frame 40 is arranged on the bottom plate 50, so as to realize the purpose of moving the concave collecting frame 40; in order to facilitate the pouring of the stones and impurities in the concave collecting frame 40, a telescopic member 60 (such as an electric telescopic rod or a jack) is arranged below the concave collecting frame 40, and a rotating member 70 is arranged on the side away from the telescopic member 60; when the telescopic member 60 is raised, the concave collecting frame 40 can be inclined about the rotating member 70 as the shaft, and the stones and impurities in the concave collecting frame 40 can be poured out.

[0050] The rotating member 70 is a sleeve arranged on the bottom plate 50 and a rotating shaft arranged on the concave collecting frame 40, the rotating shaft is sleeved in the sleeve and can rotate in the sleeve.

[0051] The above disclosure is only the preferred embodiment of the present application, of course, cannot be limited by the scope of the present application, those skilled in the art can understand that the implementation of all or part of the above-mentioned embodiments, and the equivalent changes made according to the claims of the present application, still belong to the scope covered by the present application.

Claims

1. A sand and gravel filtration device, characterized in that, include: A frame, in which a funnel-shaped filter screen is inclinedly arranged, with the small-diameter end of the filter screen located near the bottom of the frame, and the filter screen and the side wall of the frame forming a fine sand storage space, and a slag outlet is provided on the bottom of the frame. A screening assembly includes a winch feeder and a flow guide. One end of the winch feeder is located at the small-diameter end of the filter screen and is rotatably connected to the bottom of the frame. It is used to transport sand and gravel at the bottom of the frame to the top of the frame. The slag outlet is located on the periphery of the winch feeder. The flow guide is located at the other end of the winch feeder and is used to restrict the movement path of the sand and gravel.

2. The sand and gravel filtration device according to claim 1, characterized in that, Several buffer components are provided between the filter screen and the frame. Each buffer component includes a buffer rod and an abutment block. One end of the buffer rod is connected to the side wall of the frame, and the abutment block is connected to the other end of the buffer rod and is in contact with the filter screen.

3. The sand and gravel filtering device according to claim 1, characterized in that, The bottom of the frame is symmetrically provided with baffles and a slot is provided at the bottom of the frame. The baffles and the slot are slidably connected to each other to block the slag outlet.

4. The sand and gravel filtration device according to claim 1, characterized in that, The guide component includes a mounting ring and a guide plate. The mounting ring is sleeved on the other end of the winch feeder, and the guide plate is disposed on the mounting ring and is inclined downward.

5. The sand and gravel filtration device according to claim 1, characterized in that, It also includes a concave collecting frame, which is disposed below the frame. The upper surface of the concave collecting frame is provided with at least one impurity through hole, which is connected to the slag outlet. The impurity through hole has a first position and a second position, and the impurity through hole can switch between the first position and the second position. When it is in the first position, the impurity through hole is not connected to the slag outlet; when it is in the second position, the impurity through hole is connected to the slag outlet.

6. The sand and gravel filtration device according to claim 5, characterized in that, It also includes a base plate, a telescopic component, and a rotating component. Rollers are provided below the base plate. The telescopic component is located on the upper surface of the base plate and abuts against one end of the concave collecting frame. The rotating component is located at the other end of the concave collecting frame and is fixedly connected to the base plate.

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