Dust falling device for dry mixing production line

Abstract

The utility model relates to the technical field of dry mixing production, in particular to a dust falling device for a dry mixing production line, which comprises a quantitative charging barrel, a material distributing vertical frame is fixedly mounted at the bottom of the quantitative charging barrel, and the bottom of the quantitative charging barrel is communicated with a discharge port body penetrating through a horizontal top plate of the material distributing vertical frame. According to the dust falling device for the dry-mixing production line, through the arrangement of the electric push rod, the auxiliary cover disc, the first lantern ring, the first rubber ring, the auxiliary cover cylinder, the dust collection cotton piece and the clamping base, the dust falling device for the dry-mixing production line can be conveniently used for dust falling in the process that powder is subjected to suction dust falling operation; under the auxiliary connection effect of the material distributing vertical frame, the auxiliary dust collection structure is used for conducting auxiliary dust collection and dust falling treatment on part of powder escaping from an inlet of the dust falling cover body from different height positions, the dust falling range of the device in the actual operation process is expanded, the dust falling effect of the device is effectively improved, and the risk that the powder escapes is fully reduced.

Description

Technical Field

[0001] This utility model relates to the field of dry mixing production technology, specifically a dust suppression device for dry mixing production lines. Background Technology

[0002] When producing dry-mixed mortar on a dry-mixed production line, inorganic cementitious materials (such as cement) and additives (such as polymers) are physically mixed in a certain proportion to form granular or powdered materials so that they can be used directly after being mixed with water. At the same time, in order to avoid the spread of powder and pollution of the surrounding production environment, dust removal devices are required to treat the dust when the dry-mixed mortar production line is working.

[0003] Currently, dust suppression devices used in dry mixing production lines typically involve installing a dust hood outside the discharge port to extract and suppress dust from the dispersed material during discharge. However, considering that the suction height of the dust hood is fixed in some cases, this setup increases the risk of powder escape during actual operation and reduces the efficiency of powder extraction and collection, hindering the device from achieving efficient dust suppression. Therefore, a dust suppression device for dry mixing production lines is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a dust suppression device for dry mixing production lines, so as to solve the problems mentioned in the background art, where existing dust suppression devices for dry mixing production lines are prone to powder escape and have low suction and collection efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dust suppression device for a dry mixing production line includes a metering cylinder, a distributing frame fixedly installed at the bottom of the metering cylinder, an outlet body penetrating the horizontal top plate of the distributing frame at the bottom of the metering cylinder, a dust suppression hood body fitted over the outlet body, electric push rods fixedly installed near the middle of the bottom of the horizontal top plate of the distributing frame, an auxiliary cover plate fixedly connected to the movable end of the electric push rods, a first collar fixedly connected to the middle of the auxiliary cover plate and fitted over the outlet body, a first rubber ring adhered to the inner side of the first collar, an auxiliary cover cylinder fixedly connected to the bottom of the auxiliary cover plate, a dust-absorbing cotton sheet inserted into a groove on the inner side of the auxiliary cover cylinder, and a retainer that is detachably bolted to the bottom of the dust-absorbing cotton sheet.

[0007] Preferably, the top of the quantitative feed cylinder is connected to a feed hopper, the feed hopper has a conical shape, and a conveying connector is provided at the middle position of the top of the feed hopper.

[0008] Preferably, the bottom left and right sides of the horizontal top plate of the material distribution frame are fixedly connected to the outer brackets. The bottom of the outer brackets is hinged with a flip-type bag clamping mechanism. There are two flip-type bag clamping mechanisms. The upper left and upper right sides of the dust hood body are provided with adapters. The discharge end of the adapter is connected to a dust extraction pipe. The dust extraction pipe extends outward through the upper end of the outer bracket.

[0009] Preferably, the horizontal arc surface of the card holder and the bottom surface of the auxiliary cover are fitted together, the dust-absorbing cotton pad is configured in a fan shape, the inner surface of the first rubber ring and the outer surface of the discharge port body are fitted together, and the auxiliary cover is located outside the conical discharge end of the discharge port body.

[0010] Preferably, a second sleeve ring is fixedly connected to the outside of the conical discharge end of the discharge port body, and a second rubber ring is adhered to the outer surface of the second sleeve ring. The outer surface of the second rubber ring is fitted to the inner surface of the dust-absorbing cotton sheet.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, the electric push rod, auxiliary cover plate, first collar, first rubber ring, auxiliary cover cylinder, dust-absorbing cotton sheet, and card seat facilitate the dust suppression device for the dry mixing production line. During the dust extraction and dust suppression operation via the dust extraction pipe, adapter, and dust suppression hood body, with the auxiliary connection of the material distribution frame, the auxiliary dust extraction structure, composed of the electric push rod, auxiliary cover plate, first collar, first rubber ring, auxiliary cover cylinder, dust-absorbing cotton sheet, and card seat, performs auxiliary dust extraction and dust suppression on some of the powder escaping from the dust suppression hood body inlet from different heights. This structural design not only expands the dust suppression range of the device during actual operation but also effectively improves the dust suppression effect, significantly reduces the risk of powder escape, and facilitates efficient dust suppression. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal semi-section structure of the dust cover body of this utility model;

[0015] Figure 3 This is a schematic diagram of the semi-section structure of the auxiliary cover of this utility model.

[0016] In the diagram: 1. Metering cylinder; 2. Distributor frame; 3. Dust hood body; 4. Discharge port body; 5. Electric push rod; 6. Auxiliary cover plate; 7. First collar; 8. First rubber ring; 9. Auxiliary cover cylinder; 10. Dust-absorbing cotton sheet; 11. Card holder; 12. Second collar; 13. Second rubber ring; 14. Adapter; 15. Dust extraction pipe; 16. Outer bracket; 17. Tilting bag clamping mechanism; 18. Feed hopper; 19. Conveying connector. Detailed Implementation

[0017] 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 only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A dust suppression device for a dry mixing production line includes a metering cylinder 1, a distributing frame 2 fixedly installed at the bottom of the metering cylinder 1, an outlet body 4 penetrating the horizontal top plate of the distributing frame 2 and connected to the bottom of the metering cylinder 1, and a dust suppression hood body 3 sleeved on the outside of the outlet body 4. Electric push rods 5 are fixedly installed near the middle of the bottom of the horizontal top plate of the distributing frame 2, and an auxiliary cover plate 6 is fixedly connected to the movable end of the electric push rod 5. A first ring 7 sleeved on the outside of the outlet body 4 is fixedly connected to the middle of the auxiliary cover plate 6, and a first rubber ring 8 is glued to the inner side of the first ring 7. An auxiliary cover cylinder 9 is fixedly connected to the bottom of the auxiliary cover plate 6, and a dust-absorbing cotton sheet 10 is inserted into the groove on the inner side of the auxiliary cover cylinder 9. The bottom of the dust-absorbing cotton sheet 10 is engaged with a bracket 11 that is detachably bolted to the auxiliary cover cylinder 9.

[0020] like Figure 1 and Figure 2As shown, the top of the quantitative material cylinder 1 is connected to the feed hopper 18, which has a conical shape. The top of the feed hopper 18 has a conveying connector 19 at the middle position. This structure facilitates the device to quickly connect to the discharge end of the previous processing equipment on the dry mixing production line through the conveying connector 19 and the conveying pipe. The bottom of the horizontal top plate of the material distribution frame 2 is fixedly connected to the outer bracket 16 on both the left and right sides. The bottom of the outer bracket 16 is hinged to the flip-type bag clamping mechanism 17. There are two flip-type bag clamping mechanisms 17. The upper left and upper right sides of the dust hood body 3 are provided with adapters 14. The discharge end of the adapter 14 is connected to the dust extraction pipe 15. The dust extraction pipe 15 extends outward through the upper end of the outer bracket 16. During the use of the device, the two flip-type bag clamping mechanisms 17 are arranged symmetrically on the left and right sides, which is conducive to clamping and limiting the material bags that are put on the outside of the discharge port body 4.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the horizontal arc surface of the card holder 11 and the bottom surface of the auxiliary cover 9 are fitted together. The dust-absorbing cotton sheet 10 has a fan-shaped structure. The inner surface of the first rubber ring 8 is fitted together with the outer surface of the discharge port body 4. The auxiliary cover 9 is located outside the conical discharge end of the discharge port body 4. When the auxiliary dust-absorbing structure moves up and down, the first rubber ring 8 can help seal the gap between the discharge port body 4 and the dust cover body 3. A second collar 12 is fixedly connected to the outside of the conical discharge end of the discharge port body 4. A second rubber ring 13 is glued to the outer surface of the second collar 12. The outer surface of the second rubber ring 13 is fitted together with the inner surface of the dust-absorbing cotton sheet 10. When the auxiliary dust-absorbing structure moves up and down, the second rubber ring 13 can seal the gap between the dust-absorbing cotton sheet 10 and the second collar 12, preventing powder from spreading to the outer side of the conical discharge end of the dust cover body 3.

[0022] Workflow: The electrical energy required for the device to start and operate in this utility model comes from an external power source. Before use, it needs to be placed at the end of the dry-mix production line for packaging. Simultaneously, an electrostatic dust collector needs to be connected via the dust extraction pipe 15. Furthermore, the device needs to be connected to the discharge end of the previous processing equipment on the dry-mix production line via the conveyor joint 19 and the conveying pipe. When this dust suppression device is needed during the production and processing of dry-mix mortar on the dry-mix production line, as the powder to be bagged is sent from the previous processing equipment and enters the quantitative material cylinder 1 through the conveyor joint 19 and the inside of the feed hopper 18, multiple electric push rods 5 are simultaneously activated to move upwards under the connection and constraint of the material distribution frame 2. This causes the auxiliary cover plate 6, along with the first collar 7, the first rubber ring 8, the auxiliary cover cylinder 9, the dust-absorbing cotton sheet 10, and the card holder 11, to move upwards, removing the obstruction to the discharge port of the discharge port body 4. Then, the material bag is placed onto the discharge port body 4. The device then uses the hydraulic bag clamping component in the flip-type bag clamping mechanism 17 to clamp the material bag. Once the bag is secured, multiple electric push rods 5 are activated to move downwards to reset. The auxiliary dust collection structure, consisting of electric push rods 5, auxiliary cover plate 6, first collar 7, first rubber ring 8, auxiliary cover cylinder 9, dust-collecting cotton sheet 10, and card holder 11, descends back to its original height and covers the discharge port of the discharge port body 4. Then, during the process of bagging the bag by quantitatively carrying out the powder through the discharge port body 4, the device further addresses the powder diffused from the discharge port body 4 by using the dust extraction pipe 15 and adapter 1 of the external electrostatic precipitator. While the dust hood body 3 performs dust extraction and dust suppression operations on the powder, the device, with its adjustable height, can use an auxiliary dust extraction structure composed of an electric push rod 5, an auxiliary cover plate 6, a first collar 7, a first rubber ring 8, an auxiliary cover cylinder 9, a dust extraction cotton sheet 10, and a card holder 11 to perform auxiliary dust extraction and dust suppression on some of the powder escaping from the inlet of the dust hood body 3 from different height positions. This avoids the problem of limited suction height of the dust hood body 3, which would result in low overall dust extraction efficiency of the device and reduce the risk of powder escape.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust suppression device for a dry mixing production line, comprising a metering cylinder (1), characterized in that: The bottom of the metering cylinder (1) is fixedly installed with a material distribution frame (2). The bottom of the metering cylinder (1) is connected to a discharge port body (4) that passes through the horizontal top plate of the material distribution frame (2). The discharge port body (4) is fitted with a dust cover body (3). Electric push rods (5) are fixedly installed near the middle position at the bottom of the horizontal top plate of the material distribution frame (2). The movable end of the electric push rod (5) is fixedly connected to an auxiliary cover plate (6). The middle of the auxiliary cover plate (6) is fixedly connected to a first sleeve ring (7) fitted outside the discharge port body (4). A first rubber ring (8) is glued to the inner side of the first sleeve ring (7). The bottom of the auxiliary cover plate (6) is fixedly connected to an auxiliary cover cylinder (9). A dust-absorbing cotton sheet (10) is inserted into the groove on the inner side of the auxiliary cover cylinder (9). The bottom of the dust-absorbing cotton sheet (10) is engaged with a seat (11) that is detachably connected to the auxiliary cover cylinder (9) by bolts.

2. The dust suppression device for a dry mixing production line according to claim 1, characterized in that: The top of the quantitative material cylinder (1) is connected to a feed hopper (18), which has a conical shape and a conveying connector (19) at the middle of the top of the feed hopper (18).

3. The dust suppression device for a dry mixing production line according to claim 1, characterized in that: The material distribution frame (2) has an outer bracket (16) fixedly connected to the bottom left and right sides of the horizontal top plate. The bottom of the outer bracket (16) is hinged with a flip-type bag clamping mechanism (17). There are two flip-type bag clamping mechanisms (17). The upper left and upper right sides of the dust cover body (3) are equipped with adapters (14). The discharge end of the adapter (14) is connected to a dust extraction pipe (15). The dust extraction pipe (15) extends outward through the upper end of the outer bracket (16).

4. The dust suppression device for a dry mixing production line according to claim 1, characterized in that: The horizontal arc surface of the card holder (11) and the bottom surface of the auxiliary cover (9) are fitted together. The dust-absorbing cotton pad (10) is arranged in a fan shape. The inner surface of the first rubber ring (8) and the outer surface of the discharge port body (4) are fitted together. The auxiliary cover (9) is located outside the conical discharge end of the discharge port body (4).

5. A dust suppression device for a dry mixing production line according to claim 1, characterized in that: The discharge port body (4) has a second sleeve ring (12) fixedly connected to the outside of the conical discharge end. The outer surface of the second sleeve ring (12) is bonded with a second rubber ring (13). The outer surface of the second rubber ring (13) and the inner surface of the dust-absorbing cotton sheet (10) are attached together.

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