Cement retarder dry powder pretreatment device

Abstract

The utility model discloses a cement retarder dry powder pretreatment device which comprises a premixing tank and a screening plate, the screening plate is mounted at the upper part in the premixing tank, and a plurality of groups of screening holes are formed in the plate surface of the screening plate; a rotating deflector rod is arranged above the screening plate, a driving motor is arranged in the premixing tank, a driving shaft connected with an output shaft of the driving motor is installed in the middle of the rotating deflector rod, and the rotating deflector rod is composed of a pushing rod, a scattering rod and bottom teeth; compared with the prior art, the screening device has the following beneficial effects that the rotary driving lever, the driving motor, the driving shaft, the screening plate and the screening holes are arranged, so that the dry powder of the hydrogel coagulant and other dry materials can be conveniently screened when entering the premixing tank, and the design of the rotary driving lever can enable the dry materials to be quickly dispersed, so that the accumulation is avoided; and the screening efficiency of the dry materials is improved.

Description

Technical Field

[0001] The utility model belongs to the field of cement retarders, in particular to a cement retarder dry powder pretreatment device. Background Art

[0002] Cement retarder dry powder pretreatment device plays an important role in the cement production process. Premixing of dry materials plays many key roles. Premixing can make the cement retarder dry powder fully contact with other additives and achieve initial uniform mixing. This will lay a good foundation for subsequent processing links.

[0003] However, current equipment makes it difficult to screen the raw materials before premixing. Unscreened raw materials may contain large impurities and agglomerates. These impurities and agglomerates, once introduced into the premixing process, can interfere with the mixing process, resulting in uneven mixing. Large impurities can also hinder the integration of retarder powder with other additives, leading to localized imbalances in the composition and compromising cement performance.

[0004] In summary, the problem that the current cement retarder dry powder pretreatment device is inconvenient to perform screening before premixing needs to be solved urgently, so we propose a cement retarder dry powder pretreatment device. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a cement retarder dry powder pretreatment device to solve the problems raised in the above background technology.

[0006] A cement retarder dry powder pretreatment device comprises: a premixing tank and a screening plate; the screening plate is installed above the interior of the premixing tank, and a plurality of screening holes are provided on the plate surface of the screening plate; a rotating lever is provided above the screening plate, a driving motor is provided in the premixing tank, a driving shaft connected to the output shaft of the driving motor is installed in the middle of the rotating lever, and the rotating lever is composed of a pushing rod, a breaking rod and bottom teeth; one side of the rotating lever is a pushing rod, and the other side is a breaking rod, and a plurality of tooth grooves are provided below the breaking rod, and the tooth grooves separate the lower end of the breaking rod to form a plurality of bottom teeth.

[0007] As a preferred embodiment, a feed port opening upward is provided on the top of the premixing tank, and a discharge valve communicating with the interior of the premixing tank is installed below the feed port.

[0008] As a preferred embodiment, the driving motor is installed in the middle below the feed port, and a fixed circular plate is installed below the driving motor. The fixed circular plate is connected to the tank wall of the premixing tank through a fixing rod.

[0009] As a preferred embodiment, a plurality of groups of mixing blades connected to the lower part of the drive shaft are provided at the lower part of the premixing tank.

[0010] As a preferred embodiment, a base is provided below the premixing tank, two side uprights are installed above the base, and the premixing tank is located between the two side uprights.

[0011] As a preferred embodiment, a bearing is installed on the upper end of the side upright rod on one side, and a servo motor is installed on the side of the other side upright rod away from the premixing tank.

[0012] As a preferred embodiment, a rotating rod connected to the inner side of the bearing and the output shaft of the servo motor is respectively installed on the front and rear sides above the premixing tank.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are:

[0014] 1. By setting a rotating lever, a drive motor, a drive shaft, a screening plate and a screening hole, it is possible to facilitate the screening of hydraulic coagulant dry powder and other dry materials when they enter the premixing tank. The design of the rotating lever can quickly disperse the dry materials, avoid accumulation, and speed up the screening efficiency of the dry materials.

[0015] 2. By setting up side uprights, rotating rods, bearings and servo motors, when it is necessary to clean the dry material remaining on the screen plate, the premixing tank can be rotated under the drive of the servo motor, so that the dry material remaining on the screen plate can be poured out to achieve quick cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of the overall structure of a cement retarder dry powder pretreatment device of the utility model.

[0018] Figure 2 This is a structural schematic diagram of a cement retarder dry powder pretreatment device from another perspective of the utility model.

[0019] Figure 3 This is a schematic cross-sectional structural diagram of a cement retarder dry powder pretreatment device of the present utility model.

[0020] Figure 4 The utility model is a structural schematic diagram of a rotary lever in a cement retarder dry powder pretreatment device.

[0021] In the figure, 1. premixing tank; 2. feed port; 3. side rod; 4. bearing; 5. rotating rod; 6. base; 7. servo motor; 8. discharge valve; 9. sieve plate; 10. drive shaft; 11. drive motor; 12. fixed circular plate; 13. mixing blade;

[0022] 14. Rotating lever; 141. Pushing lever; 142. Breaking lever; 143. Bottom teeth; 144. Tooth grooves. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] A cement retarder dry powder pretreatment device comprises: a premixing tank 1 and a screening plate 9. The screening plate 9 is mounted above the interior of the premixing tank 1, and a plurality of screening holes are provided on the surface of the screening plate 9. A rotating lever 14 is provided above the screening plate 9. A drive motor 11 is provided in the premixing tank 1. A drive shaft 10 connected to the output shaft of the drive motor 11 is installed in the middle of the rotating lever 14. The rotating lever 14 consists of a push rod 141, a breaking rod 142, and bottom teeth 143. One side of the rotating lever 14 is the push rod 141, and the other side is the breaking rod 142. A plurality of tooth grooves 144 are provided below the breaking rod 142. The tooth grooves 144 separate the lower end of the breaking rod 142 to form a plurality of bottom teeth 143. When the breaking rod 142 drives the bottom teeth 143 to rotate, the material passes through the tooth grooves 144, thereby quickly breaking up the material on the plate surface.

[0025] An upwardly opening feed port 2 is provided above the premixing tank 1, and a discharge valve 8 is installed below the premixing tank 1 and communicated with the interior of the premixing tank 1. The mixed materials can be discharged through the discharge valve 8.

[0026] The driving motor 11 is installed in the middle below the feed port 2 , and a fixed circular plate 12 is installed below the driving motor 11 . The fixed circular plate 12 is connected to the tank wall of the premixing tank 1 through a fixing rod.

[0027] A plurality of mixing blades 13 connected to the lower portion of the drive shaft 10 are provided inside the premixing tank 1. When the mixing blades 13 rotate, the materials can be mixed and stirred.

[0028] See also Figures 1 to 4As a first embodiment of the present invention, in actual use, hydraulic retarder powder and other mixed dry materials are added to the premixing tank 1 through the feed inlet 2. The dry materials and powder first fall onto the surface of the sieve plate 9. The drive motor 11 drives the drive shaft 10, which in turn drives the rotating lever 14. When the rotating lever 14 begins to rotate, it also drives the push rod 141. As the push rod 141 rotates, it effectively pushes the material accumulated on the surface. The rotation of the push rod 141 continuously pushes the accumulated material in all directions, making it more dispersed across the surface. Simultaneously, the rotation of the rotating lever 14 also drives the rotation of the breaking rod 142. As the breaking rod 142 rotates, the bottom teeth 143 at its lower end come into play. When the breaking rod 142 drives the bottom teeth 143 to rotate, the material passes through the tooth grooves 144, quickly breaking up the material on the surface. Under the combined action of the bottom teeth 143 and the tooth grooves 144 , materials that may have originally agglomerated or lumped together are quickly broken up into smaller particles, thereby greatly improving the screening efficiency.

[0029] The screened material enters the lower part of the premixing tank 1. The driving shaft 10 rotates while driving the multiple mixing blades 13. Under the action of the mixing blades 13, the dry powder and dry material are stirred so that they can be mixed quickly and evenly. After mixing is completed, the mixed material can be discharged through the discharge valve 8.

[0030] A base 6 is provided below the premixing tank 1 , two side uprights 3 are installed above the base 6 , and the premixing tank is located between the two side uprights 3 .

[0031] A bearing 4 is installed on the upper end of one side upright rod 3 , and a servo motor 7 is installed on the side of the other side upright rod 3 away from the premixing tank 1 .

[0032] A rotating rod 5 connected to the inner side of the bearing 4 and the output shaft of the servo motor 7 is respectively installed on the front and rear sides of the upper part of the premixing tank 1.

[0033] See also Figures 1 to 3 As a second embodiment of the present utility model: when it is necessary to clean the larger material that cannot pass through the sieve holes and remains on the upper end of the sieve plate 9, the servo motor 7 drives the rotating rod 5 to rotate, and the rotating rod 5 can drive the premixing tank 1 to rotate, thereby causing the premixing tank 1 to rotate and tilt, and then the material on the surface of the sieve plate 9 can be poured out, realizing rapid cleaning. When the premixing tank 1 rotates, the rotating rod 5 can drive the bearing 4 to rotate, so that the premixing tank 1 rotates more smoothly.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cement retarder dry powder pretreatment device, characterized by: include: A premixing tank (1) and a screening plate (9); The sieve plate (9) is installed above the interior of the premixing tank (1), and a plurality of sieve holes are provided on the surface of the sieve plate (9); A rotating lever (14) is provided above the sieve plate (9), a driving motor (11) is provided in the premixing tank (1), a driving shaft (10) connected to the output shaft of the driving motor (11) is installed in the middle of the rotating lever (14), and the rotating lever (14) is composed of a pushing rod (141), a breaking rod (142) and a bottom tooth (143); One side of the rotating lever (14) is a pushing rod (141), and the other side is a breaking rod (142). A plurality of tooth grooves (144) are provided below the breaking rod (142). The tooth grooves (144) separate the lower end of the breaking rod (142) to form a plurality of bottom teeth (143).

2. A cement retarder dry powder pretreatment device according to claim 1, characterized in that: A feed port (2) opening upward is provided above the premixing tank (1), and a discharge valve (8) communicating with the interior of the premixing tank (1) is installed below the feed port (2).

3. A cement retarder dry powder pretreatment device according to claim 2, characterized in that: The driving motor (11) is installed in the middle below the feed port (2), and a fixed circular plate (12) is installed below the driving motor (11). The fixed circular plate (12) is connected to the tank wall of the premixing tank (1) through a fixing rod.

4. A cement retarder dry powder pretreatment device according to claim 3, characterized in that: A plurality of groups of mixing blades (13) connected to the lower portion of the drive shaft (10) are provided at the lower portion of the premixing tank (1).

5. A cement retarder dry powder pretreatment device according to claim 4, characterized in that: A base (6) is provided below the premixing tank (1), two side uprights (3) are installed above the base (6), and the premixing tank is located between the two side uprights (3).

6. A cement retarder dry powder pretreatment device according to claim 5, characterized in that: A bearing (4) is installed on the upper end of the side upright rod (3) on one side, and a servo motor (7) is installed on the side of the side upright rod (3) on the other side away from the premixing tank (1).

7. A cement retarder dry powder pretreatment device according to claim 6, characterized in that: A rotating rod (5) connected to the inner side of the bearing (4) and the output shaft of the servo motor (7) is respectively installed on the front and rear sides of the upper part of the premixing tank (1).

Images