Multi-stage screening device for calcium carbonate production

Abstract

The utility model provides a multistage screening device for calcium carbonate production, which comprises a centrifugal force screener, two device supports and a driving motor, the centrifugal force screener is rotatably mounted on the other device support, the driving motor is fixedly mounted on one of the device supports, and the centrifugal force screener is rotatably mounted on the other device support. The output end of the driving motor rotationally penetrates through the device support to be fixedly connected with one end of the centrifugal force screening device. The centrifugal force screener rotates to drive calcium carbonate in the centrifugal force screener to rotate and roll, the calcium carbonate in the centrifugal force screener can be in close contact with the inner wall of the centrifugal force screener under the action of rotating and rolling, so that the calcium carbonate is screened by an internal screening structure, and the mode is low in noise and vibration flat rate; the phenomenon that part of calcium carbonate is not screened and directly enters the next screening structure to be screened is avoided, the screening quality of the calcium carbonate is greatly improved, and in addition, due to the influence of rotating force, the calcium carbonate can be evenly and stably screened.

Description

Technical Field

[0001] The utility model belongs to the technical field of calcium carbonate screening, in particular to a multi-stage screening device for calcium carbonate production. Background Art

[0002] Calcium carbonate, also known as limestone and stone powder, is a common chemical substance on the earth. It is an inorganic salt mineral, alkaline, insoluble in water, and soluble in acid. It exists naturally in rocks such as aragonite, calcite, chalk, limestone, marble, and limestone. Calcium carbonate of different sizes has different applications, so during production, it will be screened according to its diameter.

[0003] Most of the existing calcium carbonate screening devices use inclined screening plates to roll and screen the calcium carbonate, and continuously perform multi-stage screening treatment on it. In order to ensure the screening efficiency, a vibration mechanism is installed on the screening plate. This method not only produces loud noise, but also causes large vibrations in the device as a whole. It is also very easy to get blocked and the screening effect is not ideal. Because the upper part of the calcium carbonate exerts pressure on the lower part of the calcium carbonate, the upper part of the calcium carbonate is not screened and directly slides onto the next screening plate, resulting in certain defects in the existing multi-stage screening device.

[0004] Therefore, it is very necessary to invent a multi-stage screening device for producing calcium carbonate. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-stage screening device for calcium carbonate production, including a centrifugal screener, a device bracket and a driving motor. The centrifugal screener is rotatably mounted on another device bracket. Two device brackets are provided, one of which is fixedly mounted with a driving motor. The output end of the driving motor rotates through the device bracket and is fixedly connected to one end of the centrifugal screener.

[0006] The centrifugal screener includes a screening shell, a retention ring, a screening mesh cover, a material retention area, an inlet and outlet main pipe, a feed pipe group and a regulating solenoid valve. One end of the screening shell is rotatably mounted on one of the device brackets, and the other end of the screening shell is fixedly connected to the output end of the driving motor. A plurality of retention rings are arranged inside the screening shell, and screening mesh covers are correspondingly fixedly mounted on the retention rings. Two screening mesh covers are fixedly mounted on the retention rings. The retention rings and the two screening mesh covers are screening structures. The material retention area is between the screening structures and between the screening shell and the screening shell. The inlet and outlet main pipes are fixedly mounted on the screening shell and the retention ring, and a plurality of feed pipe groups and a regulating solenoid valve are mounted on the inlet and outlet main pipes.

[0007] Preferably, the screening housing and the screening structure are shuttle-shaped structures, the screening housing is fixedly connected to the screening mesh cover, and the screening mesh cover is a conical filter mesh cover.

[0008] Preferably, the inlet and outlet main pipes, the feed pipe group and the regulating solenoid valve are a material inlet and outlet pipe assembly, the feed pipe group is a pipe group composed of a plurality of discharge pipes, and the feed pipe group is flush with the retention ring cylinder.

[0009] Preferably, one end of the inlet and outlet main pipe protrudes from the outside of the screening shell, and the other end of the inlet and outlet main pipe is connected to the innermost retention ring cylinder, and a feed pipe group and a regulating solenoid valve are arranged below the retention ring cylinder, and the feed pipe group and the regulating solenoid valve are arranged inside the material retention area, one of the regulating solenoid valves is arranged outside the screening shell, and the regulating solenoid valve is a main control valve.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model drives a centrifugal screener to rotate by a driving motor, and the centrifugal screener drives the calcium carbonate inside it to rotate and roll. Because the calcium carbonate inside it is in close contact with the inner wall under the action of the rotation and rolling, it is screened by the internal screening structure. This method has low noise and low vibration rate. Secondly, part of the calcium carbonate will not be directly sent to the next screening structure for screening without being screened, which greatly improves the screening quality. In addition, due to the influence of the rotating force, the calcium carbonate can be screened evenly and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model after assembly.

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the partial half-section structure.

[0014] Figure 3 This utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0015] In the figure:

[0016] Centrifugal screener 1, screening shell 11, retention ring cylinder 12, screening mesh cover 13, material retention area 14, inlet and outlet main pipe 15, feed pipe group 16, control solenoid valve 17, device bracket 2, drive motor 3. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0018] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 on 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0019] As attached Figure 1 To Attachment Figure 3 As shown:

[0020] The utility model provides a multi-stage screening device for calcium carbonate production, comprising a centrifugal screener 1, a device bracket 2 and a drive motor 3. The centrifugal screener 1 is rotatably mounted on another device bracket 2. Two device brackets 2 are provided, one of which is fixedly mounted with the drive motor 3. The output end of the drive motor 3 rotates through the device bracket 2 and is fixedly connected to one end of the centrifugal screener 1. The drive motor 3 is used to drive the centrifugal screener 1 to rotate.

[0021] The centrifugal screener 1 comprises a screening housing 11, a retention ring 12, a screening mesh cover 13, a material retention area 14, an inlet and outlet main pipe 15, a feed pipe group 16 and a regulating solenoid valve 17. One end of the screening housing 11 is rotatably mounted on one of the device brackets 2, and the other end of the screening housing 11 is fixedly connected to the output end of the drive motor 3. A plurality of retention rings 12 are arranged inside the screening housing 11, and a screening mesh cover 13 is correspondingly fixedly mounted on the retention rings 12. Cover 13, two screening mesh covers 13 are fixedly installed on the retention ring cylinder 12, the retention ring cylinder 12 and the two screening mesh covers 13 are screening structures, between the screening structures and between the screening shell 11 are material retention areas 14, the screening shell 11 and the retention ring cylinder 12 are fixedly installed with an inlet and outlet main pipe 15, and a plurality of feed pipe groups 16 and a regulating solenoid valve 17 are installed on the inlet and outlet main pipe 15, and the centrifugal screener 1 is used to screen the internal calcium carbonate. Embodiment 1:

[0022] Specifically, the screening housing 11 and the screening structure are shuttle-shaped structures, the screening housing 11 is fixedly connected to the screening mesh cover 13, and the screening mesh cover 13 is a conical filter mesh cover.

[0023] Specifically, the inlet and outlet main pipe 15, the feed pipe group 16 and the regulating solenoid valve 17 are a material inlet and outlet pipe assembly. The feed pipe group 16 is a pipe group composed of a plurality of discharge pipes. The feed pipe group 16 is flush with the retention ring cylinder 12. The material inlet and outlet pipe assembly can inject calcium carbonate material into it while gradually discharging the screened calcium carbonate material to the outside.

[0024] Specifically, one end of the inlet and outlet main pipe 15 protrudes from the outside of the screening shell 11, and the other end of the inlet and outlet main pipe 15 is connected to the innermost retention ring cylinder 12. A feed pipe group 16 and a regulating solenoid valve 17 are arranged below the retention ring cylinder 12. The feed pipe group 16 and the regulating solenoid valve 17 are arranged on the inner side of the material retention area 14. One of the regulating solenoid valves 17 is arranged on the outside of the screening shell 11. The regulating solenoid valve 17 is a main control valve, and the regulating solenoid valve 17 controls the discharge of calcium carbonate materials of different sizes.

[0025] Embodiment 2: Centrifugal screener 1, screening housing 11, retention ring 12, screening mesh cover 13, material retention area 14, inlet and outlet main pipe 15, feed pipe group 16, control solenoid valve 17, device bracket 2, drive motor 3

[0026] The defects or problems raised in the above-mentioned background technology are mainly solved by the structure of the centrifugal screener 1: when calcium carbonate needs to be screened, the driving motor 3 drives the centrifugal screener 1, so that the material inlet and outlet pipe assembly of the centrifugal screener 1 faces upward, and then all the regulating solenoid valves 17 are opened, and then the calcium carbonate is slowly injected into the innermost screening structure. After the injection of the material is completed, all the regulating solenoid valves 17 are closed, and the driving motor 3 is opened to drive the centrifugal screener 1 to rotate as a whole. As the centrifugal screener 1 rotates, the calcium carbonate material inside the centrifugal screener 1 will also rotate and roll, and will roll along its screening structure, causing the screening structure to be The screening mesh cover 13 of the structure screens it, and the smaller calcium carbonate gradually moves to the external material retention area 14 for retention. When the calcium carbonate screening is completed, the driving motor 3 drives the centrifugal screener 1, so that the material inlet and outlet pipe assembly of the centrifugal screener 1 faces downward, and the calcium carbonate is discharged from the body from the outside to the inside. The regulating solenoid valve 17 outside the screening shell 11 and the outermost regulating solenoid valve 17 inside the screening shell 11 are opened, and the outermost calcium carbonate material will enter the inlet and outlet main pipe 15 and then be discharged outside. Subsequently, the regulating solenoid valve 17 inside the screening shell 11 is gradually opened until all the calcium carbonate material inside is discharged from the body.

[0027] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A multi-stage screening device for calcium carbonate production, characterized in that: The invention comprises a centrifugal screener (1), a device support (2) and a drive motor (3), wherein the centrifugal screener (1) is rotatably mounted on another device support (2), two device supports (2) are provided, one of the device supports (2) is fixedly mounted with the drive motor (3), and the output end of the drive motor (3) is rotatably passed through the device support (2) and is fixedly connected to one end of the centrifugal screener (1); The centrifugal screener (1) comprises a screening housing (11), a retention ring cylinder (12), a screening mesh cover (13), a material retention area (14), an inlet and outlet main pipe (15), a feed pipe group (16) and a control solenoid valve (17); one end of the screening housing (11) is rotatably mounted on one of the device brackets (2); the other end of the screening housing (11) is fixedly connected to the output end of the drive motor (3); a plurality of the retention ring cylinders (12) are arranged inside the screening housing (11); the retention ring cylinders (12) are arranged on the inside of the screening housing (11); 2) is fixedly mounted with a screening mesh cover (13), and two of the screening mesh covers (13) are fixedly mounted on the retention ring cylinder (12). The retention ring cylinder (12) and the two screening mesh covers (13) are screening structures. Between the screening structures and between the screening shell (11) and the screening shell (11) are material retention areas (14). The screening shell (11) and the retention ring cylinder (12) are fixedly mounted with an inlet and outlet main pipe (15), and a plurality of the feed pipe groups (16) and a regulating solenoid valve (17) are mounted on the inlet and outlet main pipe (15).

2. A multi-stage screening device for calcium carbonate production as claimed in claim 1, characterized in that: The screening housing (11) and the screening structure are shuttle-shaped structures; the screening housing (11) is fixedly connected to the screening mesh cover (13); and the screening mesh cover (13) is a conical filter mesh cover.

3. A multi-stage screening device for calcium carbonate production as claimed in claim 1, characterized in that: The inlet and outlet main pipe (15), the feed pipe group (16) and the control solenoid valve (17) are a material inlet and outlet pipe assembly. The feed pipe group (16) is a pipe group composed of a plurality of discharge pipes. The feed pipe group (16) is flush with the retention ring cylinder (12).

4. A multi-stage screening device for calcium carbonate production as claimed in claim 1, characterized in that: One end of the inlet and outlet main pipe (15) protrudes from the outside of the screening housing (11), and the other end of the inlet and outlet main pipe (15) is connected to the innermost retention ring cylinder (12). A feed pipe group (16) and a control solenoid valve (17) are arranged below the retention ring cylinder (12). The feed pipe group (16) and the control solenoid valve (17) are arranged on the inner side of the material retention area (14), and one of the control solenoid valves (17) is arranged outside the screening housing (11). The control solenoid valve (17) is a main control valve.

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