Novel evaporation thickener

Abstract

According to the novel evaporation thickener provided by the utility model, the overflow pipe is additionally arranged at the overflow port on the right side surface of the thickener body and extends into the center of the thickener body, so that during stirring, crystals approach to the inner side wall of the thickener body under the influence of centrifugal force because the density of the crystals is greater than that of feed liquid; the overflow pipe enables the clear liquid in the central position of the thickener body to pass through the overflow port to flow into the next process, so that the position of the overflow port of the thickener is adjusted to the central position of the thickener body, and the liquid crystal content of the overflowed material is reduced; in addition, the stirring speed in the thickener is low, so that the disturbance influence on the feed liquid by adding the overflow pipe can be ignored.

Description

Technical Field

[0001] The utility model belongs to the technical field of evaporation and crystallization, and in particular relates to a novel evaporation thickener. Background Art

[0002] The thickener is an important part of the evaporator. During the evaporation and concentration of the feed liquid, crystals will gradually form. The feed liquid containing crystalline particles will be discharged into the thickener. Through sedimentation, most of the crystalline particles will be precipitated in the thickener, and the liquid part will overflow from the overflow port on the side wall of the thickener to the next stage. When the accumulation of crystals in the thickener reaches a certain amount, they will be released from the bottom, and the relatively dry crystals will pass through the centrifuge. In order to prevent the crystals in the thickener from agglomerating, a stirrer is generally added to the thickener to stir the precipitated crystals to prevent agglomeration after long-term standing. Because of the existence of stirring, some crystals are stirred and turned over and float up, flowing out of the overflow port, resulting in the presence of some crystals in the overflow clear liquid. Utility Model Content

[0003] The purpose of the utility model is to reduce the amount of crystals overflowing from the overflow port of the thickener during the production process, to ensure that the crystals produced by the evaporator can settle out in the thickener, thereby improving the efficiency of the equipment; in addition, since some evaporation equipment needs to separate related substances, if the amount of crystals overflowing from the overflow port of the thickener during the production process is reduced, the separated substances can be made purer and the product quality can be improved.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A novel evaporative thickener comprises a thickener body and an overflow pipe. The overflow pipe passes through an overflow port arranged on the right side of the thickener body and extends into the center of the thickener body. The overflow pipe is arranged horizontally, and one end of the overflow pipe close to the thickener body is an oblique opening.

[0006] Preferably, a top cover is detachably mounted on the top surface of the thickener body; a rotating motor is fixedly mounted on the top surface of the top cover, the output end of the rotating motor is arranged vertically downward, a stirring shaft is fixedly connected to the ground at the output end of the rotating motor, and a paddle is fixedly mounted on the bottom of the stirring shaft.

[0007] Preferably, a discharge valve is provided on the bottom surface of the thickener body; a thickener feed pipe is provided through the left side of the top surface of the top cover, the feed pipe passes through the top cover and extends into the thickener body, and the bottom of the feed pipe is connected to a guide cylinder.

[0008] Compared with the prior art, the advantages and positive effects of the utility model are:

[0009] The utility model designs a novel evaporative thickener, by adding an overflow pipe at the overflow port on the right side of the thickener body, the overflow pipe extends into the center of the thickener body, during stirring, since the crystal density is greater than the material liquid density, the crystal will approach the inner wall of the thickener body under the influence of centrifugal force, and the overflow pipe will flow the clear liquid in the center of the thickener body through the overflow port into the next process, so that the overflow port position of the thickener is adjusted to the center of the thickener body, and the crystal content of the overflowed material is reduced; in addition, since the stirring rate in the thickener is low, the influence of the addition of the overflow pipe on the disturbance of the material liquid can be ignored. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0011] Figure 1 It is a front structural schematic diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the top surface (without top cover) structure of the utility model;

[0013] In the above figures, 1. thickener body; 2. overflow pipe; 3. overflow port; 4. top cover; 5. rotating motor; 6. stirring shaft; 7. paddle; 8. discharge valve; 9. feed pipe; 10. guide tube. DETAILED DESCRIPTION

[0014] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0015] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0016] Embodiment 1, as Figure 1 , Figure 2As shown, a novel evaporator thickener comprises a thickener body 1 and an overflow pipe 2, wherein the overflow pipe 2 extends into the center of the thickener body 1 through an overflow port 3 arranged at one third of the right side of the thickener body 1 from top to bottom, and the overflow pipe 2 is arranged horizontally, and the opening of one end of the overflow pipe 2 close to the thickener body 1 is an oblique opening; when in use, the overflow pipe 2 can flow the clear liquid in the center of the thickener body 1 into the next process through the overflow pipe 2; the arrangement of the overflow pipe 2 reduces the amount of crystals overflowing from the overflow port 3 during the production process of the thickener, and ensures that the crystals produced by the evaporator can settle out in the thickener, thereby improving the efficiency of the equipment;

[0017] The top surface of the thickener body 1 is detachably provided with a top cover 4; a rotating motor 5 is fixedly provided on the top surface of the top cover 4, and the output end of the rotating motor 5 is arranged vertically downward, and a stirring shaft 6 is fixedly connected to the ground at the output end of the rotating motor 5, and a paddle 7 is fixedly provided at the bottom of the stirring shaft 6; when in use, the rotating motor 5 is started to make the paddle 7 stir the crystals in the thickener body 1, and the feed liquid is in a rotating state. Since the density of the crystals is greater than the density of the feed liquid, the crystals are stirred and subjected to centrifugal force, so the crystals will approach the inner wall of the thickener body 1; the technical solution of the present application ensures that the content of the crystal body of the overflowed material is low by providing an overflow pipe 2 in the center of the thickener body 1; in addition, since the rotation speed is generally low during the stirring process of the thickener, the disturbance effect on the feed liquid after adding the overflow pipe 2 is small;

[0018] A discharge valve 8 is provided on the bottom of the thickener body 1 ; a thickener feed pipe 9 is provided through the left side of the top surface of the top cover 4 , the feed pipe 9 passes through the top cover 4 and extends into the thickener body 1 , and a guide tube 10 is connected to the bottom of the feed pipe 9 .

[0019] A bracket 11 is fixedly mounted on the bottom of the thickener body 1 . In this embodiment, two brackets 11 are provided, which are symmetrically arranged on the left and right sides of the middle of the bottom surface of the thickener body 1 .

[0020] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A novel evaporation thickener, characterized in that: The thickener comprises a thickener body (1) and an overflow pipe (2), wherein the overflow pipe (2) passes through an overflow port (3) arranged on the right side of the thickener body (1) and extends into the center of the thickener body (1); the overflow pipe (2) is arranged horizontally, and the opening of one end of the overflow pipe (2) close to the thickener body (1) is an oblique opening.

2. A novel evaporation thickener according to claim 1, characterized in that: A top cover (4) is detachably mounted on the top surface of the thickener body (1); a rotating motor (5) is fixedly mounted on the top surface of the top cover (4); an output end of the rotating motor (5) is arranged vertically downward; a stirring shaft (6) is fixedly connected to the output end of the rotating motor (5) on the ground; and a paddle (7) is fixedly mounted on the bottom of the stirring shaft (6).

3. A novel evaporation thickener according to claim 2, characterized in that: The bottom surface of the thickener body (1) is provided with a discharge valve (8); a thickener feed pipe (9) is provided through the left side of the top surface of the top cover (4); the feed pipe (9) passes through the top cover (4) and extends into the inside of the thickener body (1); the bottom of the feed pipe (9) is connected to a guide tube (10).

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