Mortar settling device and sand washing equipment
By setting baffles and partitions in the mortar settling device to change the direction of mortar movement and extend the stroke, the problem of insufficient separation of coarse/fine sand from stone powder and soil in manufactured sand production is solved, achieving efficient mortar settling and improving the yield rate.
Patent Information
- Application Number
- CN202520168767.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-24
AI Technical Summary
In the existing technology for producing manufactured sand, the separation of coarse/fine sand from stone powder and soil is insufficient, resulting in low yield and poor quality. Furthermore, the overflow mortar still contains a large amount of coarse/fine sand, which increases the difficulty of subsequent water treatment.
A mortar settling device is adopted. By setting baffles and partitions inside the box to change the direction of mortar movement and extend the movement stroke, the density difference is used to separate soil, stone powder and coarse/fine sand, reduce the mortar kinetic energy and improve the settling efficiency.
It effectively separates coarse/fine sand from stone powder and soil, improves the quality and yield of manufactured sand, reduces the fine sand content in overflow mortar, and improves production efficiency and benefits.
Smart Images
Figure CN223774376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manufactured sand, specifically to a mortar settling device and a sand washing equipment. Background Technology
[0002] Most construction sand is produced through ore crushing and processing, rather than by mining natural river sand. In the production of manufactured sand (including coarse and fine sand), the raw materials, such as ores, contain soil, and the crushing process generates a large amount of coarse / fine sand and stone powder. To meet the quality requirements, the crushed sand and gravel need to be washed and screened during manufacturing. The slurry containing soil, coarse / fine sand, and stone powder formed during washing and screening is fed into a spiral sand washer via a chute. The slurry enters the receiving tank of the spiral sand washer. Due to the high flow rate of the slurry fed into the chute, some of the coarse / fine sand, carrying stone powder and soil, is squeezed out by the spiral device of the spiral sand washer, while the remaining slurry containing soil, stone powder, and some coarse / fine sand flows out through the overflow trough. Thus, on the one hand, the coarse / fine sand carried out by the screw of the spiral sand washing machine still contains some stone powder and soil, which reduces the quality of the finished manufactured sand; on the other hand, the mortar water flowing out through the overflow trough still contains a lot of coarse / fine sand, which reduces the yield and makes it difficult for subsequent mortar water recycling or subsequent water treatment. Utility Model Content
[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background technology and provide a mortar settling device and sand washing equipment. The mortar settling device can divert finished sand with less stone powder and soil, while reducing the content of coarse / fine sand in the overflow mortar, thereby improving production efficiency and benefits.
[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:
[0005] The first technical solution relates to a mortar settling device for settling mortar, comprising a tank adapted to contain mortar, having an inlet, an overflow outlet, and a sand outlet, the inlet facing a first direction and adapted to introduce mortar; the overflow outlet located at the top of the tank; the sand outlet located at the bottom of the tank; a baffle disposed within the tank and perpendicular to the first direction, the projection of the inlet on a projection plane perpendicular to the first direction falling within the projection of the baffle on a projection plane perpendicular to the first direction; and a partition disposed within the tank between the baffle and the overflow outlet, the top of the partition being higher than the overflow outlet and the bottom lower than the top of the baffle, adapted to isolate the liquid level above the top of the baffle between the baffle and the overflow outlet within the tank.
[0006] The second technical solution is based on the first technical solution, wherein the opening direction of the overflow port is perpendicular to the first direction.
[0007] The third technical solution is based on the second technical solution, wherein the overflow port is serrated.
[0008] The fourth technical solution is based on the third technical solution, wherein the size of the sand outlet is adjustable.
[0009] The fifth technical solution is based on the fourth technical solution, wherein the sand outlet is formed in the bottom plate, the bottom of the box is provided with a bottom groove, and the bottom plate is detachably installed in the bottom groove of the box.
[0010] The sixth technical solution is based on the fifth technical solution, wherein the input port is located in the middle of the side wall of the box, and the two ends of the baffle extend to the side wall of the box to isolate the liquid surface between the input port and the baffle within the box, which is located within the projection height range of the baffle on the projection plane perpendicular to the first direction.
[0011] The seventh technical solution is based on the sixth technical solution, wherein the bottom of the box between the input port and the baffle forms an inclined surface that slopes towards the inside of the box in a horizontal direction.
[0012] The eighth technical solution is based on the seventh technical solution, wherein the box body is square, there are two inlets, which are respectively located in the middle of the left and right side walls of the box body; there are two baffles, each baffle corresponding to one inlet, and the front and rear ends are respectively connected to the front and rear side walls of the box body; there are two partitions, each partition corresponding to one baffle, and the front and rear ends are respectively connected to the front and rear side walls of the box body; the overflow port is located in the middle of the front or rear side wall of the box body;
[0013] The ninth technical solution is based on the eighth technical solution, wherein the bottom of the box body forms a bottom groove in the area between the projections of the two baffles on the horizontal plane, a bottom plate is installed on the bottom groove, and a square sand outlet is opened on the bottom plate.
[0014] The tenth technical solution relates to a sand washing equipment, which includes a spiral sand washing machine and a mortar settling device as described in any of the above technical solutions. The mortar settling device is located above the spiral sand washing machine, and the sand flowing out of the sand outlet enters the feed end of the spiral sand washing machine.
[0015] As can be seen from the above description of the present invention and its preferred embodiments, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:
[0016] Through continuous observation, experimentation, and research, the applicant has learned that the problem with existing technical solutions, which result in low yield and poor quality of manufactured sand, lies in the inability to effectively separate coarse / fine sand from stone powder and soil during the production process. The technical challenge in separating coarse / fine sand from stone powder and soil is to reduce the impact of mortar kinetic energy on the settling and separation of coarse / fine sand, stone powder, and soil without reducing the mortar input speed. This application addresses this by changing the direction of mortar movement and extending the mortar's travel distance, thereby ensuring that soil is fully dispersed in the water, stone powder does not enter the bottom of the tank due to inertia but floats to the surface after a longer travel distance, and coarse / fine sand does not fail to settle due to the flow rate.
[0017] In the first technical solution, since the baffle is installed inside the tank and perpendicular to the first direction, the projection of the inlet on the projection plane perpendicular to the first direction is within the projection of the baffle on the projection plane perpendicular to the first direction. The baffle can prevent all the mortar entering the tank from continuing to flow in the tank along the first direction, changing the direction of mortar movement and reducing the kinetic energy of the mortar. Since the partition is installed inside the tank between the baffle and the overflow port, the top of the partition is higher than the overflow port and the bottom is lower than the top of the baffle. This is suitable for isolating the liquid surface above the top of the baffle between the baffle and the overflow port inside the tank, so that the liquid surface above the top of the baffle is isolated. The flow layer above the top cannot flow directly to the overflow outlet. It must flow back to the flow layer below the baffle before flowing to the overflow outlet. This further changes the movement direction of the flow layer after the mortar passes over the baffle and reduces the kinetic energy of the mortar. This prolongs the movement distance and time of the mortar to reach the overflow outlet, allowing the soil, stone powder, and coarse / fine sand to better float and settle due to density differences. Coarse sand and most of the fine sand flow out from the sand outlet, while soil, stone powder, and a small amount of fine sand flow out from the overflow outlet. This effectively separates the manufactured sand (including coarse and fine sand) from the stone powder and soil, thus improving the quality of the manufactured sand. The amount of fine sand overflowing is reduced, improving the yield and production efficiency.
[0018] In the second technical solution, the opening direction of the overflow port is perpendicular to the first direction, so that the input mortar that has not changed its direction of movement cannot flow directly out of the overflow port, thereby reducing the amount of fine sand flowing out of the overflow port.
[0019] In the third technical solution, the overflow outlet is serrated, which reduces the speed of the mortar when it passes through, increases energy consumption, makes the overflow smoother, reduces the impact of flow velocity on the settling of fine sand, and further reduces the outflow of fine sand from the overflow outlet.
[0020] In the fourth technical solution, the size of the sand outlet is adjustable. By adjusting the size of the sand outlet, the moisture content of the fine sand flowing out of the sand outlet and the flow rate of the overflow outlet can be controlled. Reducing the size of the sand outlet will decrease the flow rate of the sand outlet and increase the flow rate of the overflow outlet. In this way, the flow rate of the overflow outlet can be adjusted according to the specific conditions of the mortar, avoiding excessive or rapid overflow or no flow, which would cause excessive fine sand, stone powder, or soil to overflow without flowing out of the overflow outlet.
[0021] In the fifth technical solution, the sand outlet is formed on the bottom plate, the bottom of the box is provided with a bottom groove, and the bottom plate is detachably installed in the bottom groove of the box, which can realize low-cost and convenient adjustment of the size of the sand outlet.
[0022] In the sixth technical solution, the inlet is located in the middle of the side wall of the tank, ensuring sufficient space for the mortar to rise and sink. The baffle extends to both ends of the side wall of the tank to isolate the liquid surface within the projection height range of the baffle on the projection plane perpendicular to the first direction between the inlet and the baffle. This prevents the mortar entering the tank from flowing directly in the laminar layer, forcing it to flow only above or below the baffle, further reducing the mortar's kinetic energy and extending its travel distance.
[0023] In the seventh technical solution, the bottom of the box between the inlet and the baffle forms an inclined surface that slopes towards the inside of the box in a horizontal direction. This facilitates the settling of coarse sand and larger fine sand particles, which then slide down to the sand outlet under the influence of gravity, preventing accumulation and thus reducing the box's ability to process mortar.
[0024] In the eighth technical solution, the box body is square, with two inlets located in the middle of the left and right side walls respectively; two baffles, each corresponding to one inlet, with their ends connected to the front and rear side walls of the box body respectively; two partitions, each corresponding to one baffle, with their ends connected to the front and rear side walls of the box body respectively; and an overflow port located in the middle of the front or rear side wall of the box body. The overall structure is symmetrically distributed from left to right, which on the one hand allows the kinetic energy of the mortar to partially cancel each other out after entering, further reducing the impact of the mortar's kinetic energy on the settling process; on the other hand, the compact layout saves box space and improves the processing efficiency of the mortar settling device.
[0025] In the ninth technical solution, the bottom groove is formed in the area between the projections of the two baffles on the horizontal plane, preventing the mortar from flowing directly out of the sand outlet after input. The square sand outlet facilitates cleaning and maintenance.
[0026] In the tenth technical solution, the sand washing equipment adopts a mortar settling device with the above structure, which also has the technical effects described above. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the mortar settling device in Example 1;
[0029] Figure 2 This is a schematic diagram of the mortar settling device in Example 2;
[0030] Explanation of key figure labels:
[0031] 1. Mortar settling device; 2. Box body; 3. Baffle; 4. Partition; 5. Inlet; 6. Overflow outlet; 7. Sand outlet; 8. Bottom tank; 9. Bottom plate. Detailed Implementation
[0032] 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 preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0033] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of the invention.
[0034] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.
[0035] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".
[0036] Example 1
[0037] See Figure 1 , Figure 1 A schematic diagram of the mortar settling device 1 in Embodiment 1 is shown. The mortar settling device 1 is applied in the production process of manufactured sand. After the ore is crushed, it is washed and screened to form mortar. The mortar contains coarse sand, fine sand, stone powder and soil. The mortar is introduced into the mortar settling device 1, where the coarse sand, fine sand, stone powder and soil settle and separate. The device includes a box 2, a baffle 3 and a partition 4.
[0038] The container 2, in this embodiment, is a rectangular open container, enclosed by a left side wall, a right side wall, a front side wall, a rear side wall, and a bottom wall, suitable for containing mortar. The container 2 has an inlet 5, an overflow outlet 6, and a sand outlet 7. In this embodiment, there are two inlets 5, located in the middle of the left and right side walls respectively, with their openings facing a first direction. In this embodiment, the first direction is a horizontal left-right direction. The two inlets 5 are connected to chutes to introduce mortar into the container 2. The overflow outlet 6 is located in the middle of the top of the rear side wall of the container 2, and its shape is serrated. The opening direction of the overflow outlet 6 is perpendicular to the first direction, i.e., the opening direction is the front-back direction. Depending on actual needs, in other embodiments, the overflow outlet 6 can also be located on the front side wall or both the front and rear side walls. A bottom groove 8 is formed in the middle of the bottom wall of the container 2. Inclined surfaces, oriented horizontally, are formed on the bottom wall at both ends of the bottom groove 8, with the inclined surfaces facing inwards. A bottom plate 9 is detachably mounted on the bottom groove 8, and the sand outlet 7 is formed on the bottom plate 9. In this embodiment, multiple base plates 9 with different sizes of sand outlet 7 are provided. The size of the sand outlet 7 can be adjusted by replacing the base plates 9 with different sizes of sand outlet 7 according to the sand content and flow rate of the mortar.
[0039] In this embodiment, there are two baffles 3, respectively located on the left and right sides of the housing 2, each corresponding to an inlet 5. The front and rear ends of each baffle 3 are connected to the front and rear side walls of the housing 2, and are vertically arranged perpendicular to the left and right directions. The projection of the baffle 3 on the projection plane perpendicular to the first direction includes the projection of the inlet 5 on the projection plane perpendicular to the first direction. That is, in this embodiment, the baffle 3 faces the inlet 5 directly, with the upper end of the baffle 3 higher than the upper end of the inlet 5 and the lower end lower than the lower end of the inlet 5, so that all the mortar introduced through the inlet 5 is blocked by the baffle 3. Furthermore, since the baffle 3 is connected to the front and rear side walls of the housing 2, the introduced mortar can only flow to the middle of the housing 2 through the upper or lower flow layer of the baffle 3. In this embodiment, the bottom wall area between the projections of the baffle 3 and the inlet 5 on the horizontal plane does not have a bottom groove 8. The bottom groove 8 is formed on the bottom wall in the area between the projections of the two baffles 3 on the horizontal plane.
[0040] The partition 4 is installed inside the box body 2. In this embodiment, there are two partitions 4, each corresponding to a baffle 3, located between the baffle 3 and the overflow port 6. The front and rear ends of each partition 4 are connected to the front and rear side walls of the box body 2, respectively. The top of the partition 4 is higher than the overflow port 6 and the bottom is lower than the top of the baffle 3. Each partition 4 blocks the flow layer above the top of the baffle 3 between the baffle 3 and the overflow port 6 inside the box body 2. That is, after the mortar in the box body 2 passes over the baffle 3, it is blocked by the partition 4 and can only flow to the overflow port 6 through the flow layer below the partition 4.
[0041] The mortar settling device 1 of this application introduces mortar through the inlet 5 via left and right chutes, which then rushes towards the baffle 3. The baffle 3 blocks the mortar and changes its horizontal flow direction, causing it to swirl within the box 2 between the inlet 5 and the baffle 3. Coarse sand settles towards the bottom wall. Since the bottom wall between the inlet 5 and the baffle 3 is inclined, the coarse sand slowly slides towards the bottom trough 8 and flows out through the sand outlet 7. Fine sand, stone powder, and soil flow towards the middle of the box 2 under the action of buoyancy through the flow layer above or below the baffle 3. The flow layer above the baffle 3 is blocked by the baffle 4 as it flows towards the overflow outlet 6, and can only change its flow direction to flow towards the overflow outlet 6 through the flow layer below the baffle 4. During this process, whether it is the flow layer above or below the baffle 3, the mortar has more time and travel to rise and fall. Fine sand settles into the bottom wall of the box 2 and flows out through the sand outlet 7, while stone powder and soil rise to the surface and flow out through the overflow outlet 6.
[0042] Example 2
[0043] See Figure 2 , Figure 2 A schematic diagram of the mortar settling device 1 in Embodiment 2 is shown. The mortar settling device 1 in Embodiment 2 is basically the same in structure as the mortar settling device 1 in Embodiment 1. The difference is that the mortar settling device 1 in this embodiment is only provided with one inlet 5, one baffle 3, and one partition 4. The inlet 5 is opened on the left side wall of the box 2, and the overflow port 6 is opened on the right side wall of the box 2. The overflow port 6 is a circular hole.
[0044] The sand washing equipment includes a spiral sand washer and a mortar settling device 1. The spiral sand washer is existing technology and mainly consists of a spiral device, which is readily available on the market. The mortar settling device 1 is located above the spiral sand washer. The sand flowing out of the sand outlet 7 enters the feed end of the spiral sand washer. Under the action of the spiral device, the sand is discharged from the top of the spiral device and dewatered to form finished sand.
[0045] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.
Claims
1. A mortar settling device for settling mortar, characterized in that, include: A housing suitable for containing mortar, having an inlet, an overflow outlet, and a sand outlet, wherein the inlet faces a first direction and is suitable for introducing mortar; the overflow outlet is located at the top of the housing; and the sand outlet is located at the bottom of the housing. A baffle is disposed inside the box and perpendicular to the first direction, and the projection of the input port on the projection plane perpendicular to the first direction is within the projection of the baffle on the projection plane perpendicular to the first direction. A baffle is disposed inside the tank between the baffle and the overflow port. The top of the baffle is higher than the overflow port and the bottom is lower than the top of the baffle. It is suitable for isolating the liquid level above the top of the baffle between the baffle and the overflow port inside the tank.
2. The mortar settling device as described in claim 1, characterized in that, The opening direction of the overflow port is perpendicular to the first direction.
3. The mortar settling device as described in claim 2, characterized in that, The overflow port is serrated.
4. A mortar settling device as described in claim 3, characterized in that, The size of the sand outlet is adjustable.
5. A mortar settling device as described in claim 4, characterized in that, The sand outlet is formed in the bottom plate, and the bottom of the box is provided with a bottom groove. The bottom plate is detachably installed in the bottom groove of the box.
6. A mortar settling device as described in claim 5, characterized in that, The inlet is located in the middle of the side wall of the box, and the two ends of the baffle extend to the side wall of the box to isolate the liquid surface between the inlet and the baffle within the box, which is located within the projection height range of the baffle on the projection plane perpendicular to the first direction.
7. A mortar settling device as described in claim 6, characterized in that, The bottom of the box between the input port and the baffle forms a slope that is inclined horizontally toward the inside of the box.
8. A mortar settling device as described in claim 7, characterized in that, The box body is square, and there are two inlets, which are respectively located in the middle of the left and right side walls of the box body; there are two baffles, each baffle corresponding to one inlet, and the front and rear ends are respectively connected to the front and rear side walls of the box body; there are two partitions, each partition corresponding to one baffle, and the front and rear ends are respectively connected to the front and rear side walls of the box body; the overflow port is located in the middle of the front or rear side wall of the box body.
9. A mortar settling device as described in claim 8, characterized in that, The bottom of the box forms a groove in the area between the projections of the two baffles on the horizontal plane. A bottom plate is installed on the groove, and a square sand outlet is opened on the bottom plate.
10. A sand washing device, characterized in that, It includes a spiral sand washing machine and a mortar settling device as described in any one of claims 1 to 9, wherein the mortar settling device is located above the spiral sand washing machine, and the sand flowing out of the sand outlet enters the feed end of the spiral sand washing machine.