Multistage screening device for dry-mixed mortar production

Abstract

The utility model discloses a multi-stage screening device for dry-mixed mortar production, which comprises a screening bin, a driving motor is arranged at the upper end of the screening bin, a discharge port is arranged at the front end of the screening bin, a feed bin is arranged at the left end of the screening bin, a waste port is arranged at the right end of the screening bin, a storage box is arranged in the discharge port, and a discharge port is arranged in the storage box. Sliding rails are arranged at the lower left corner and the lower right corner of the waste opening correspondingly, a second screen is arranged at the upper ends of the sliding rails, a front baffle, a rear baffle, a left baffle and a right baffle are arranged on the front portion, the rear portion, the left portion and the right portion of the second screen correspondingly, a left handle and a right handle are arranged at the front end of the front baffle, and a layer plate is arranged in the screening bin. A screening barrel is arranged at the upper end of the layer plate, a first screen is arranged at the bottom of the screening barrel, a transmission rod is arranged at the lower end of the driving motor 2, and three screen plates are arranged on the outer diameter of the transmission rod.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-mix mortar production, in particular to a multi-stage screening device for dry-mix mortar production. Background Art

[0002] Dry-mix mortar (also called dry-powder mortar in the early days) is usually called hydraulic cement mixed mortar. It refers to a granular or powdery mortar formed by physical mixing of dried and sieved aggregates (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers) in a certain proportion. It is also called mortar dry powder, dry mix, and dry mixing powder. Some building adhesives also belong to this category. Dry-mix mortar plays a bonding, cushioning, protective and decorative role in the construction industry with a thin layer. It is widely used in construction and decoration projects. It is one of the emerging dry-mix materials in the field of building materials. With the continuous improvement of project quality, environmental protection requirements and civilized construction requirements, the shortcomings and limitations of mortar mixing on construction sites have become more and more prominent. Dry-mix mortar has been favored by more and more people due to its advantages in technical performance and social benefits. It is transported to the construction site in bags or bulk and can be used directly after adding water and mixing. However, there will be lumps in the dry-mix mortar, which will affect the mixing effect. Therefore, those skilled in the art provide a multi-stage screening device for dry-mix mortar production to solve the problems raised in the above-mentioned background technology. Summary of the invention

[0003] The purpose of the utility model is to provide a multi-stage screening device for dry-mix mortar production to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A multi-stage screening device for dry-mixed mortar production includes a screening bin, a driving motor is provided at the upper end of the screening bin, a discharge port is provided at the front end of the screening bin near the lower end, a feed bin is provided at the left end of the screening bin near the upper end, and a waste port is provided at the right end of the screening bin near the middle.

[0006] As a further solution of the utility model: a material storage box is arranged in the discharge port, and a handle is arranged at the front end of the material storage box.

[0007] As a further solution of the utility model: slide rails are provided at the lower left corner and the lower right corner of the waste port, one end of the slide rail is fixedly connected to the left inner wall of the screening bin, the other end of the slide rail extends to the outside of the right end of the screening bin, and a slide groove is provided at the upper end of the slide rail.

[0008] As a further solution of the utility model: a second screen is arranged at the upper end of the slide rail, and a front baffle, a rear baffle, a left baffle and a right baffle are respectively arranged in front, rear, left and right of the second screen.

[0009] As a further solution of the utility model: a left handle and a right handle are arranged at the front end of the front baffle, and pulleys are arranged at the lower ends of the left baffle and the right baffle respectively.

[0010] As a further solution of the utility model: a layer plate is arranged near the upper end of the interior of the screening bin, and a screening cylinder is arranged at the upper end of the layer plate.

[0011] As a further solution of the utility model: a first screen is arranged at the bottom of the screening cylinder, and a bearing seat is arranged at the center of the upper end of the first screen.

[0012] As a further solution of the utility model: a transmission rod is arranged at the lower end of the driving motor, the lower end of the transmission rod passes through the top of the screening bin and extends to the bottom of the screening cylinder, and is fixedly connected to the bearing seat.

[0013] As a further solution of the utility model: three sieve plates are arranged on the outer diameter of the transmission rod near the bottom, and the sieve plates are fixedly connected to the transmission rod.

[0014] As a further solution of the utility model: a feed bin is arranged at the left end of the screening bin near the upper end, and the lower end of the feed bin passes through the left end of the screening bin and extends to the top of the screening cylinder.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is provided with two layers of sorting, the first screen is coarse, and the second screen is fine, the coarse screening is performed through the first screen, and the raw materials are made to fall evenly through the rotation of the screen plate, and the rotation of the screen plate can crush the larger lumps in the raw materials and reduce the lumps in the raw materials. The falling raw materials will pass through the second screen and fall into the storage box, and any smaller agglomerate particles that are crushed will be caught by the second screen. Therefore, the utility model can crush and sieve the lumps that affect the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a multi-stage screening device for dry-mix mortar production.

[0017] Figure 2 This is a main half-section view of a multi-stage screening device for dry-mix mortar production.

[0018] Figure 3 This is a cross-sectional view at point A in a multi-stage screening device for dry-mix mortar production.

[0019] Figure 4 This is a schematic diagram of the structure of the slide rail in a multi-stage screening device for dry-mix mortar production.

[0020] Figure 5This is a schematic diagram of the overall structure of the second screen in a multi-stage screening device for dry-mix mortar production.

[0021] In the figure: 1. screening bin; 2. driving motor; 3. discharge port; 4. waste port; 5. feeding bin; 6. slide rail; 7. storage box; 8. second screen; 9. handle; 10. slide; 11. rear baffle; 12. right baffle; 13. left baffle; 14. front baffle; 15. right handle; 16. left handle; 17. pulley; 18. layer plate; 19. screening cylinder; 20. first screen; 21. transmission rod; 22. screen plate; 23. bearing seat. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with the specific implementation methods. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] See also Figures 1 to 5In the embodiment of the utility model, a multi-stage screening device for producing dry-mixed mortar comprises a screening bin 1, a driving motor 2 is arranged at the upper end of the screening bin 1, a discharge port 3 is arranged at the front end near the lower end of the screening bin 1, a feeding bin 5 is arranged at the left end near the upper end of the screening bin 1, a waste port 4 is arranged at the right end near the middle of the screening bin 1, a storage box 7 is arranged in the discharge port 3, a handle 9 is arranged at the front end of the storage box 7, a slide rail 6 is arranged at the lower left and right corners of the waste port 4, one end of the slide rail 6 is fixedly connected to the left inner wall of the screening bin 1, and the other end of the slide rail 6 extends to the outside of the right end of the screening bin 1, a slide groove 10 is arranged at the upper end of the slide rail 6, and a second screen 8 is arranged at the upper end of the slide rail 6, and a front baffle 14, a rear baffle 11, a left baffle 13 and a right baffle 12 are arranged in front, rear, left and right of the second screen 8, respectively. A left handle 16 and a right handle 15 are provided at the front end of the front baffle 14, and pulleys 17 are provided at the lower ends of the left baffle 13 and the right baffle 12, respectively. A layer plate 18 is provided near the upper end of the interior of the screening bin 1, and a screening cylinder 19 is provided at the upper end of the layer plate 18. A first screen 20 is provided at the bottom of the screening cylinder 19, and a bearing seat 23 is provided at the center of the upper end of the first screen 20. A transmission rod 21 is provided at the lower end of the drive motor 2, and the lower end of the transmission rod 21 passes through the top of the screening bin 1 and extends to the bottom of the screening cylinder 19, and is fixedly connected to the bearing seat 23. Three sieve plates 22 are provided on the outer diameter of the transmission rod 21 near the bottom, and the sieve plates 22 are fixedly connected to the transmission rod 21. A feed bin 5 is provided near the upper end of the left end of the screening bin 1, and the lower end of the feed bin 5 passes through the left end of the screening bin 1 and extends to the top of the screening cylinder 19.

[0024] The working principle of the utility model is as follows: when using the utility model, first start the driving motor 2, so that the transmission rod 21 rotates on the bearing seat 23, and then the transmission rod 21 drives the screen plate 22 to rotate, and then the raw material is poured from the feed bin 5 into the screening cylinder 19, and the rotation of the screen plate 22 makes the raw material fall through the first screen 20 evenly, and the rotation of the screen plate 22 will crush the larger agglomerates in the raw material, and the raw material falling through the first screen 20 will fall into the storage box 7 through the second screen 8, and the raw material not being screened by the screen plate 22 will be crushed by the screen plate 22. Some of the smaller agglomerated particles that have been crushed will be caught by the second screen 8, and the second screen 8 can roll in the slide groove 10 on the slide rail 6 through the pulleys 17 provided at the bottom of the left baffle 13 and the right baffle 12, so that the second screen 8 can move on the slide rail 6, and then the second screen 8 is pulled by the left handle 16 and the right handle 15 at the front end of the front baffle 14, and the second screen 8 can be pulled out of the screening bin 1 through the waste port 4 to clean up the agglomerates, and the original ones that fall into the storage box 7 can be pulled out of the storage box 7 from the discharge port 3 for use through the handle 9.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage screening device for dry-mix mortar production, comprising a screening chamber (1), characterized in that: A driving motor (2) is arranged at the upper end of the screening bin (1); a discharge port (3) is arranged at a position near the lower end of the front end of the screening bin (1); a feed bin (5) is arranged at a position near the upper end of the left end of the screening bin (1); a waste port (4) is arranged at a position near the middle of the right end of the screening bin (1); a layer plate (18) is arranged at a position near the upper end of the screening bin (1); a screening cylinder (19) is arranged at the upper end of the layer plate (18); a first screen (20) is arranged at the bottom of the screening cylinder (19); a bearing seat (23) is arranged at a position in the middle of the upper end of the first screen (20); slide rails (6) are arranged at the lower left and lower right corners of the waste port (4); one end of the slide rail (6) is connected to the left inner wall of the screening bin (1). The second screen (8) is fixedly connected, the other end of the slide rail (6) extends to the outside of the right end of the screening bin (1), the upper end of the slide rail (6) is provided with a slide groove (10), the upper end of the slide rail (6) is provided with a second screen (8), the front, rear, left and right of the second screen (8) are respectively provided with a front baffle (14), a rear baffle (11), a left baffle (13) and a right baffle (12), the lower end of the drive motor (2) is provided with a transmission rod (21), the lower end of the transmission rod (21) passes through the top of the screening bin (1) and extends to the bottom of the screening cylinder (19), and is fixedly connected to the bearing seat (23), and three sieve plates (22) are provided on the outer diameter of the transmission rod (21) near the bottom, and the sieve plates (22) are fixedly connected to the transmission rod (21).

2. A multi-stage screening device for dry-mix mortar production according to claim 1, characterized in that: A material storage box (7) is arranged in the material discharge port (3), and a handle (9) is arranged at the front end of the material storage box (7).

3. A multi-stage screening device for dry-mix mortar production according to claim 1, characterized in that: A left handle (16) and a right handle (15) are arranged at the front end of the front baffle (14), and pulleys (17) are arranged at the lower ends of the left baffle (13) and the right baffle (12), respectively.

4. A multi-stage screening device for dry-mix mortar production according to claim 1, characterized in that: A feed bin (5) is provided at a position near the upper end of the left end of the screening bin (1), and the lower end of the feed bin (5) passes through the left end of the screening bin (1) and extends to the top of the screening cylinder (19).

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