Screening device for dry-mixed mortar

Abstract

The utility model relates to the technical field of dry-mixed mortar, in particular to a screening device for dry-mixed mortar, which comprises a box body, a blanking hopper, a support, a storage hopper, a screen drum, a discharge pipe, a feed hopper, a mounting pipe and a partition plate, the box body is connected with the support, the partition plate is connected with the inner wall of the box body, the box body is divided into a screening bin and a feeding bin, the screen drum is rotationally connected with the box body and the partition plate and located in the screening bin, and the partition plate is provided with a driving assembly a which is in transmission connection with the screen drum. The mounting pipe is connected with the box body, the storage hopper is connected with the upper end of the mounting pipe and is coaxially distributed with the mounting pipe, and the discharging pipe is connected with the lower end of the mounting pipe and is obliquely arranged; the discharging hopper is connected with the lower end of the box body and located below the screening bin, and the inner diameter value of the discharging hopper is gradually reduced downwards in the height direction of the box body. The screening drum rotates to accelerate screening of mortar, and the mortar continuously rolls in the screening drum to be screened more thoroughly.

Description

Technical Field

[0001] This utility model relates to the field of dry-mixed mortar technology, specifically to a screening device for dry-mixed mortar. Background Technology

[0002] Dry-mixed mortar, commonly known as hydraulic cementitious mortar, refers to a granular or powdery material made by physically mixing aggregates, inorganic cementitious materials, and additives in a certain proportion after drying and screening. It is transported to the construction site in bagged or bulk form and can be used directly after being mixed with water. Existing dry-mixed mortars often have inconsistent particle sizes, requiring screening. To reduce the labor intensity of manual screening, screening equipment is generally used.

[0003] Chinese Patent CN217595133U discloses an aggregate screening device for dry-mixed mortar production, which solves the technical problems of current screening devices used in dry-mixed mortar production, such as easy material discharge and poor vibration damping performance. The device includes a shell and an inclined screen. A feeding hopper is fixedly installed at the middle of the top of the shell, and a discharging hopper is fixedly installed at the bottom of the shell. A discharging pipe is fixedly installed at the middle of the bottom of the discharging hopper. Support plates are fixedly installed on the bottom of both sides of the shell, and damping vibration isolators are fixedly installed on both sides of the top of the two support plates. A dust removal component is fixedly installed on the front of the shell. This invention facilitates the conveying of aggregate into the shell through the feeding hopper. The aggregate rolls down onto the inclined screen, and a vibration motor vibrates the inclined screen, which transmits the vibration to the aggregate, accelerating its movement. Fine particles in the aggregate fall into the discharging hopper through the mesh of the inclined screen.

[0004] However, the above technical solution has the following defects: the inclined filter screen in the above aggregate screening device for mortar production is inverted V-shaped. When the mortar falls onto it, some of the mortar is not filtered and slides down along the inclined filter screen, resulting in waste. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a screening device for dry-mixed mortar.

[0006] The technical solution of this utility model is: a screening device for dry-mixed mortar, comprising a box, a feeding hopper, a support, a storage hopper, a screen cylinder, a discharge pipe, a feed hopper, an installation pipe, and a partition plate;

[0007] The box body is connected to the bracket, and the partition is connected to the inner wall of the box body. The box body is divided into a screening chamber and a feeding chamber. The screen cylinder is rotatably connected to the box body and the partition. The screen cylinder is located in the screening chamber. The partition is equipped with a drive component a, and the drive component a is connected to the screen cylinder through a transmission.

[0008] The mounting pipe connects to the housing, the storage hopper connects to the upper end of the mounting pipe and is coaxially distributed with the storage hopper, and the discharge pipe connects to the lower end of the mounting pipe. The discharge pipe is set at an angle.

[0009] The hopper is connected to the lower end of the box body. The hopper is located below the screening chamber, and the inner diameter of the hopper gradually decreases downwards along the height of the box body.

[0010] Preferably, it also includes a fixing plate, a mounting shaft, and a spiral blade;

[0011] The fixed plate is connected to the storage hopper, and the mounting shaft is rotatably connected to the fixed plate. The mounting shaft and the mounting tube are coaxially distributed. The fixed plate is equipped with a drive assembly b, which is connected to the mounting shaft via a transmission.

[0012] The spiral blade is connected to the mounting shaft and is coaxially distributed with the mounting shaft. The spiral blade is located inside the mounting tube.

[0013] Preferably, it also includes a mounting rod and a fixing block;

[0014] The fixing block connects to the box body, and the mounting rod is connected to the fixing block. The mounting rod is located inside the screen cylinder, and one end of the mounting rod is equipped with bristles that are tightly attached to the inner wall of the screen cylinder.

[0015] Preferably, the fixing block has a groove, one end of the mounting rod is connected to the groove, the fixing block has a nut and a bolt, the bolt passes through the fixing block and the mounting rod, the nut is connected to the bolt, the end of the bolt presses against the surface of the fixing block, and the surface of the nut presses against the surface of the mounting rod.

[0016] Preferably, the inner wall of the groove is provided with a rubber pad, and the surface of the mounting rod is pressed against the rubber pad.

[0017] Preferably, the feed port of the screen cylinder is provided with a feed hopper, the inner diameter of the feed hopper gradually decreases along the axis of the screen cylinder towards the direction away from the screen cylinder, and the discharge port of the discharge pipe extends into the feed hopper.

[0018] Preferably, the box body is provided with a material guide section, which is located below the discharge port of the screen cylinder.

[0019] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0020] 1. In this utility model, the rotation of the screen cylinder accelerates the screening of mortar, and the mortar continuously tumbles inside the screen cylinder for more thorough screening.

[0021] 2. In this utility model, the drive component b starts and drives the installation shaft to rotate, and the spiral blade rotates with the installation shaft. When the dry mortar is put into the storage hopper, the spiral blade will uniformly transport the dry mortar into the screen cylinder, so that the dry mortar can be screened evenly and fully. Attached Figure Description

[0022] Figure 1 This is a perspective view of a screening device for dry-mixed mortar proposed in this utility model.

[0023] Figure 2 This is a perspective view of another embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of a screening device for dry-mixed mortar proposed in this utility model.

[0025] Reference numerals in the attached drawings: 1. Box body; 2. Feed hopper; 3. Support; 4. Storage hopper; 5. Fixing plate; 6. Screen cylinder; 7. Drive assembly b; 8. Mounting rod; 9. Discharge pipe; 10. Fixing block; 11. Mounting shaft; 12. Spiral blade; 13. Feed hopper; 14. Drive assembly a; 15. Mounting pipe; 16. Partition plate; 17. Guide section. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-3 As shown, the present invention proposes a screening device for dry-mixed mortar, comprising a box body 1, a feeding hopper 2, a support 3, a storage hopper 4, a screen cylinder 6, a discharge pipe 9, a feeding hopper 13, an installation pipe 15, and a partition plate 16.

[0028] The box body 1 is connected to the bracket 3, and the partition 16 is connected to the inner wall of the box body 1. The box body 1 is divided into a screening chamber and a feeding chamber. The screen cylinder 6 is rotatably connected to the box body 1 and the partition 16. The screen cylinder 6 is located in the screening chamber. The partition 16 is provided with a drive assembly a14, and the drive assembly a14 is connected to the screen cylinder 6 through transmission.

[0029] Furthermore, the housing 1 is provided with a material guide 17, which is located below the discharge port of the screen cylinder 6;

[0030] The mounting pipe 15 is connected to the housing 1, the storage hopper 4 is connected to the upper end of the mounting pipe 15 and is coaxially distributed with the storage hopper 4, and the discharge pipe 9 is connected to the lower end of the mounting pipe 15. The discharge pipe 9 is set at an angle.

[0031] Furthermore, the feed port of the screen cylinder 6 is provided with a feed hopper 13, and the inner diameter of the feed hopper 13 gradually decreases along the axial direction of the screen cylinder 6 in the direction away from the screen cylinder 6. The discharge port of the discharge pipe 9 extends into the feed hopper 13.

[0032] The feeding hopper 2 is connected to the lower end of the box 1. The feeding hopper 2 is located below the screening chamber. The inner diameter of the feeding hopper 2 gradually decreases downward along the height direction of the box 1.

[0033] In this invention, dry-mixed mortar is fed into the storage hopper 4. The mortar slides into the screen cylinder 6 along the installation pipe 15 and the discharge pipe 9. The drive component a14 is started to drive the screen cylinder 6 to rotate. The mortar tumbles and is screened inside the screen cylinder 6. The mortar that has passed through the screen cylinder 6 is discharged from the feed hopper 2. The mortar with larger particles is discharged from the discharge port of the screen cylinder 6. In this invention, the rotation of the screen cylinder 6 speeds up the screening of the mortar, and the continuous tumbling of the mortar inside the screen cylinder 6 makes the screening more thorough.

[0034] Example 2

[0035] like Figure 3 As shown, the screening device for dry-mixed mortar proposed in this utility model, compared with Embodiment 1, further includes a fixing plate 5, a mounting shaft 11 and a spiral blade 12.

[0036] The fixed plate 5 is connected to the storage hopper 4, and the mounting shaft 11 is rotatably connected to the fixed plate 5. The mounting shaft 11 is coaxially distributed with the mounting tube 15. The fixed plate 5 is provided with a drive assembly b7, which is connected to the mounting shaft 11 in a transmission manner.

[0037] The spiral blade 12 is connected to the mounting shaft 11 and is coaxially distributed with the mounting shaft 11. The spiral blade 12 is located inside the mounting tube 15.

[0038] In this embodiment, the drive component b7 starts and drives the mounting shaft 11 to rotate. The spiral blade 12 rotates with the mounting shaft 11. When the dry mortar is put into the storage hopper 4, the spiral blade 12 delivers the dry mortar to the screen cylinder 6 at a uniform speed, so that the dry mortar can be screened evenly and fully.

[0039] Example 3

[0040] like Figure 1 and Figure 3 As shown, the screening device for dry-mixed mortar proposed in this utility model, compared with Embodiment 1, further includes an installation rod 8 and a fixing block 10;

[0041] The fixing block 10 is connected to the box body 1, and the mounting rod 8 is connected to the fixing block 10. The mounting rod 8 is located inside the screen cylinder 6, and one end of the mounting rod 8 is provided with bristles that are tightly attached to the inner wall of the screen cylinder 6.

[0042] Furthermore, the fixing block 10 is provided with a groove, one end of the mounting rod 8 is connected to the groove, the fixing block 10 is provided with a nut and a bolt, the bolt passes through the fixing block 10 and the mounting rod 8, the nut is connected to the bolt, the end of the bolt presses against the surface of the fixing block 10, and the surface of the nut presses against the surface of the mounting rod 8.

[0043] Furthermore, a rubber pad is provided on the inner wall of the groove, and the surface of the mounting rod 8 is pressed tightly onto the rubber pad.

[0044] In this embodiment, the mounting rod 8 is equipped with bristles. When the screen cylinder 6 rotates, the bristles on the mounting rod 8 will brush off the dry mortar adhering to the inner wall of the screen cylinder 6, preventing mortar from clogging the screen cylinder 6 and making the screen cylinder 6 more unobstructed during use.

[0045] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A screening device for dry-mix mortar, characterized in that, The box (1), the lower hopper (2), the support (3), the storage hopper (4), the screen cylinder (6), the discharge pipe (9), the feeding hopper (13), the mounting pipe (15) and the partition plate (16) are connected; The box (1) is connected with the support (3), the partition plate (16) is connected with the inner wall of the box (1), the box (1) is divided into a screening bin and a feeding bin, the screen cylinder (6) is rotatably connected with the box (1) and the partition plate (16), the screen cylinder (6) is located in the screening bin, the partition plate (16) is provided with a driving assembly a (14), and the driving assembly a (14) is drivingly connected with the screen cylinder (6); The mounting pipe (15) is connected with the box (1), the storage hopper (4) is connected with the upper end of the mounting pipe (15) and is coaxially distributed with the storage hopper (4), and the discharge pipe (9) is connected with the lower end of the mounting pipe (15) and is obliquely arranged; The lower hopper (2) is connected with the lower end of the box (1), the lower hopper (2) is located below the screening bin, and the inner diameter of the lower hopper (2) gradually decreases along the height direction of the box (1).

2. A screening device for dry mortar mix according to claim 1, characterized in that Further comprising a fixed plate (5), a mounting shaft (11) and a spiral blade (12); The fixed plate (5) is connected with the storage hopper (4), the mounting shaft (11) is rotatably connected with the fixed plate (5), the mounting shaft (11) is coaxially distributed with the mounting pipe (15), the fixed plate (5) is provided with a driving assembly b (7), and the driving assembly b (7) is drivingly connected with the mounting shaft (11); The spiral blade (12) is connected with the mounting shaft (11) and is coaxially distributed with the mounting shaft (11), and the spiral blade (12) is located inside the mounting pipe (15).

3. A screening device for dry-mix mortar according to claim 1, characterized in that Further comprising a mounting rod (8) and a fixed block (10); The fixed block (10) is connected with the box (1), the mounting rod (8) is connected with the fixed block (10), the mounting rod (8) is located inside the screen cylinder (6), and one end of the mounting rod (8) is provided with a brush, which is tightly attached to the inner wall of the screen cylinder (6).

4. A screening device for dry-mix mortars according to claim 3, characterized in that, The fixed block (10) is provided with a groove, one end of the mounting rod (8) is connected with the groove, the fixed block (10) is provided with a nut and a bolt, the bolt penetrates through the fixed block (10) and the mounting rod (8), the nut is connected with the bolt, the end of the bolt is pressed against the surface of the fixed block (10), and the surface of the nut is pressed against the surface of the mounting rod (8).

5. A screening device for dry-mix mortars according to claim 4, characterized in that, The inner wall of the groove is provided with a rubber pad, and the surface of the mounting rod (8) is pressed against the rubber pad.

6. A screening device for dry mortar mix according to claim 1, characterized in that The feeding port of the screen cylinder (6) is provided with the feeding hopper (13), the inner diameter of the feeding hopper (13) gradually decreases along the axial direction of the screen cylinder (6) and away from the screen cylinder (6), and the discharge port of the discharge pipe (9) extends into the feeding hopper (13).

7. A screening device for dry mortar mix according to claim 1, characterized in that The box (1) is provided with a material guiding part (17), and the material guiding part (17) is located below the discharge port of the screen cylinder (6).

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