Stable slurry feeding device of multi-disc thickener

Abstract

The utility model discloses a stable pulp feeding device of a multi-disc thickener, which comprises a pulp feeding header pipe, a pulp tank and a plurality of fan discs, the pulp feeding header pipe is connected with a first pulp feeding pipe and a second pulp feeding pipe, and the first pulp feeding pipe is communicated with one side of the pulp tank; the second pulp inlet pipe is connected with a plurality of branch pipes, and each branch pipe is communicated with the other side of the paper pulp groove. During actual operation, a static area can be effectively prevented from being formed in the pulp tank on the same side of the branch pipe, the pulp concentration in the pulp tank on the side is prevented from being higher and higher, and normal operation of the multi-disc thickener is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to a stable pulp feeding device for a multi-disk thickener. Background Art

[0002] In the prior art, the pulp tank of a multi-disk thickener is provided with a pulp inlet only on one side, that is, single-sided pulp feeding. However, in actual operation, the fan plates of the multi-disk thickener quickly filter the pulp just entering the pulp tank (or called "pulp pond", "tank body", etc.), resulting in too fast dehydration. As the rotating area of the fan disk becomes larger, the pulp filter cake hanging on the fan plate becomes thicker and more difficult to peel off. When it rotates to the other side of the pulp inlet, normal filtration can no longer be carried out, causing a static area to form in the pulp tank on the side opposite to the pulp inlet. The pulp concentration in the static area becomes higher and higher, which easily squeezes the gap between the fan disk and the slurry leakage plate, and even causes the main machine current of the multi-disk thickener to be too high, restricting the pulp line production capacity. In view of the above technical problems, the present application proposes a new technical solution, which can avoid the formation of a static area in the pulp tank on the side opposite to the pulp inlet, thereby ensuring the normal operation of the multi-disk thickener.

[0003] It can be seen that the prior art still needs to be improved and enhanced. Summary of the Utility Model

[0004] In view of the deficiencies of the above prior art, the purpose of the present utility model is to provide a stable pulp feeding device for a multi-disk thickener, aiming to solve the technical problem that a static area is easily formed in the pulp tank on the side opposite to the pulp inlet of the multi-disk thickener in the prior art.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A stable pulp feeding device for a multi-disk thickener includes a main pulp inlet pipe, a pulp tank, and a plurality of fan disks. The main pulp inlet pipe is connected with a first pulp inlet pipe and a second pulp inlet pipe. The first pulp inlet pipe is communicated with one side of the pulp tank; the second pulp inlet pipe is connected with a plurality of branch pipes, and each branch pipe is communicated with the other side of the pulp tank.

[0007] Further, in the stable pulp feeding device for the multi-disk thickener, the number of fan disks is N + 1, and the number of branch pipes is N; the interval between any two adjacent fan disks respectively corresponds to one branch pipe.

[0008] Further, in the stable pulp feeding device for the multi-disk thickener, the outlet end of each branch pipe is respectively connected with a spray head.

[0009] Further, in the stable pulp feeding device for the multi-disk thickener, a regulating valve is respectively arranged on the first pulp inlet pipe and the second pulp inlet pipe.

[0010] Further, in the stable pulp feeding device of the multi-disk concentrator, the specifications of each branch pipe are the same.

[0011] Beneficial effects: The present utility model provides a stable pulp feeding device for a multi-disk concentrator. Compared with the prior art, a first pulp feeding pipe and a second pulp feeding pipe are provided, and the second pulp feeding pipe is connected with a plurality of branch pipes, so as to realize double-sided pulp feeding to the pulp tank of the multi-disk concentrator. Due to the pulp feeding of each branch pipe, the pulp in the pulp tank on the side opposite to the first pulp feeding pipe (i.e., the same side as the branch pipe) can be disturbed, thereby avoiding the formation of a static area in the pulp tank on this side; since the pulp fed by the branch pipe is mixed with the original pulp, the pulp concentration in the pulp tank on this side is reduced, avoiding the continuous increase of the pulp concentration in the pulp tank on this side and ensuring the normal operation of the multi-disk concentrator. Description of the Drawings

[0012] Figure 1 Schematic structure of the stable pulp feeding device for the multi-disk concentrator Figure 1 。

[0013] Figure 2 Schematic structure of the stable pulp feeding device for the multi-disk concentrator Figure 2 。 Detailed Embodiments

[0014] The present utility model provides a stable pulp feeding device for a multi-disk concentrator. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the present utility model is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0015] Please refer to Figure 1 and Figure 2 , the present utility model provides a stable pulp feeding device for a multi-disk concentrator. The drawings are only used to explain the structural principle and are not in proportion to the actual product. The drawings only show the structures related to the inventive points of the present application, and some conventional structures of the multi-disk concentrator are not specifically shown and described. For the convenience of observation, Figure 2 some fan disks are drawn.

[0016] The terms "first", "second", etc. described herein are only used to name similar structures differently for the convenience of description and do not limit the present application. The term "a plurality of" described herein refers to an indefinite number, because the number of the structures referred to is not the inventive point, so no specific limitation is made.

[0017] The stable pulp feeding device for the multi-disk concentrator includes a main pulp feeding pipe 1, a pulp tank 2, and a plurality of fan disks 3. The main pulp feeding pipe is connected with a first pulp feeding pipe 11 and a second pulp feeding pipe 12. The first pulp feeding pipe is communicated with one side of the pulp tank; the second pulp feeding pipe is connected with a plurality of branch pipes 121, and each branch pipe is communicated with the other side of the pulp tank.

[0018] The above-mentioned first pulp inlet pipe is the pulp inlet pipe in the prior art. Different from the prior art, a second pulp inlet pipe is provided in this application, and the second pulp inlet pipe is connected with a plurality of branch pipes. Each branch pipe is arranged opposite to the first pulp inlet pipe, so as to form double-sided pulp feeding.

[0019] Preferably, the number of fan disks 3 is N + 1, and the number of branch pipes 121 is N; the intervals between any two adjacent fan disks respectively correspond to one branch pipe (as Figure 2 shown). In other words, each branch pipe is exactly aligned with the middle position between two adjacent fan disks. When each branch pipe feeds material, it can fall into the area between the two corresponding fan disks in the pulp tank, improving the disturbance effect on the pulp corresponding to the middle area of the fan disks.

[0020] Preferably, a spray head (not shown in the figure) is respectively connected to the outlet end of each branch pipe. By providing the spray head, it is convenient to improve the spraying effect of the branch pipe feeding, which can cover a wider area and make the fed pulp mix more evenly with the original pulp in the tank.

[0021] Preferably, a regulating valve 19 is respectively provided on the first pulp inlet pipe and the second pulp inlet pipe. By providing the regulating valve, the flow rates of the first pulp inlet pipe and the second pulp inlet pipe can be adjusted respectively according to the actual production situation.

[0022] Preferably, the specifications of each branch pipe are the same. Similarly, the specifications of each spray head are also the same. This setting makes the pulp feeding conditions of each branch pipe the same, and the pulp conditions in the middle area between any two adjacent fan disks the same.

[0023] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A stable pulp feeding device for a multi-disk thickener, comprising a main pulp feeding pipe, a pulp tank, and a plurality of fan disks, characterized in that, The main pulp inlet pipe is connected with a first pulp inlet pipe and a second pulp inlet pipe. The first pulp inlet pipe communicates with one side of the pulp tank; the second pulp inlet pipe is connected with a plurality of branch pipes, and each branch pipe communicates with the other side of the pulp tank.

2. The stable pulp feeding device of the multi-disc thickener according to claim 1, characterized in that, The number of fan disks is N + 1, and the number of branch pipes is N; the intervals between any two adjacent fan disks respectively correspond to one branch pipe.

3. The stable pulp feeding device of the multi-disk thickener according to claim 2, characterized in that, A nozzle is respectively connected to the outlet end of each branch pipe.

4. The multi-disk thickener stable pulp feeding device according to claim 1 or 2, characterized in that, A regulating valve is respectively arranged on the first pulp inlet pipe and the second pulp inlet pipe.

5. The stable pulp feeding device of the multi-disk thickener according to claim 1 or 2, characterized in that, The specifications of each branch pipe are the same.

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