Stirring device of evaporating furnace

Abstract

The utility model relates to the field of chemical reaction of materials, in particular to a stirring device of an evaporation furnace, which comprises a stirring helical ribbon, a plurality of stirring blades, a plurality of stirring blades and a plurality of stirring blades, the stirring helical ribbon is in a ribbon shape, and a plurality of through holes are uniformly distributed on the ribbon surface; the stirring shaft is a cylindrical shaft body, one end of the stirring shaft is vertically mounted at the bottom of the evaporation furnace, and the other end of the stirring shaft is vertically mounted at the top of the evaporation furnace; and the stirring helical ribbon is spirally arranged on the stirring shaft, is connected to a slag discharge valve positioned at the bottom of the evaporation furnace and is used for forming a spiral material channel. By designing and installing the novel evaporating furnace stirring device, the problem of material blockage is greatly solved, meanwhile, the equipment failure time is shortened, the influence on production is reduced, the situation that materials are blocked in an ore pulp furnace is avoided, and safety and reliability are achieved. The device can be applied to vast material reaction and transfer processes in the chemical industry, is convenient and simple to operate and convenient to overhaul and maintain, can save a large amount of manpower and production halt time, and can reduce the cost.

Description

Technical Field

[0001] The utility model relates to the field of material chemical reactions, in particular to an evaporation furnace stirring device. Background Art

[0002] At present, mechanical slurry material stirring devices are used in the chemical reaction process of materials in the chemical industry. Especially in today's world environment, which attaches great importance to automated and intelligent production processes, the application of remote automatic and sufficient stirring is common and necessary. It is a new device that adds stirring blades at the bottom of ordinary standard stirring to achieve complete stirring of slurry materials and prevent stirring dead zones. After years of field use, it was found that the original stirring outlet formed a stirring dead zone, which caused the sedimentation of materials at the bottom of the slurry furnace, resulting in poor discharge and blockage of the stroke, often leading to production failures and shutdowns, seriously affecting production. In addition, the bottom slag discharge valve needs to be removed to deal with the failure of the traditional stirring slurry furnace, resulting in serious material leakage, which can only be cleaned manually, which is time-consuming and labor-intensive, and also increases the safety risks of operators and the difficulty of maintenance operations.

[0003] The original slurry furnace stirring design is that there is no stirring spiral belt at the bottom, and the outlet of the slag discharge valve at the bottom of the stirring forms a pipe diameter of about 200mm long and φ200mm. Since there is no spiral belt designed at the bottom of the stirring, effective stirring cannot be formed, resulting in the inability of this section to effectively react during normal production of the slurry furnace, and the liquid material cannot be normally converted to solid, causing serious blockage at the bottom of the slurry furnace during discharge. The serious accumulation of materials leads to the inability to discharge the materials in time, and the slag discharge valve is not closed tightly, causing material leakage, resulting in production interruption, extremely difficult maintenance, and it is also very difficult for operators to clean up the accumulated materials. At the same time, the original stirring design adopts a single-piece steel plate installation. When the stirring and rotating action is performed, the blades can only form a circular rotation for the material, and the material cannot be effectively turned over and evenly mixed. During the long-term operation, the material composition does not change much and still becomes a mixed slurry, resulting in blockage, blocking and other faults when the material is discharged from this process. The tight and continuous production tasks and personnel are not allowed to stop for a long time, and the excessive accumulation of materials directly increases the difficulty of maintenance and cleaning, limiting production. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an evaporator stirring device to solve the problem of clogging of the existing materials.

[0005] The utility model provides an evaporation furnace stirring device, comprising:

[0006] A stirring spiral ribbon, wherein the stirring spiral ribbon is in a ribbon shape, and a plurality of evenly distributed through holes are arranged on the surface of the ribbon; and

[0007] A stirring shaft, wherein the stirring shaft is a cylindrical shaft body, one end of the stirring shaft is vertically installed at the bottom of the evaporation furnace, and the other end is vertically installed at the top of the evaporation furnace;

[0008] The stirring spiral ribbon is spirally arranged on the stirring shaft and connected to a slag discharge valve located at the bottom of the evaporation furnace, for forming a spiral material passage.

[0009] In some embodiments, the evaporation furnace stirring device further comprises:

[0010] A monitoring sensor, which is located at the bottom of the evaporation furnace and used for monitoring the material state.

[0011] In some embodiments, the evaporation furnace stirring device further comprises:

[0012] A rotating motor, which is located at the top of the evaporation furnace and connected to the stirring shaft.

[0013] In some embodiments, the stirring spiral ribbon can rotate forward for mixing materials.

[0014] In some embodiments, the stirring spiral ribbon can rotate backward for pressing and discharging materials.

[0015] In some embodiments, the side of the stirring spiral ribbon is serrated.

[0016] In some embodiments, the stirring spiral ribbon is one piece.

[0017] In some embodiments, the stirring spiral ribbon is composed of multiple detachable structures spliced together.

[0018] In some embodiments, the stirring spiral ribbon is made of 321 stainless steel.

[0019] In some embodiments, the surface of the stirring spiral ribbon is provided with a nanoscale flexible protective layer.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The present utility model includes: a stirring spiral ribbon, which is ribbon-shaped and provided with a plurality of uniformly distributed through holes on the ribbon surface; and a stirring shaft, which is a cylindrical shaft body, one end of the stirring shaft is vertically installed at the bottom of the evaporation furnace, and the other end is vertically installed at the top of the evaporation furnace; the stirring spiral ribbon is spirally arranged on the stirring shaft and connected to a slag discharge valve located at the bottom of the evaporation furnace, for forming a spiral material passage. By designing and installing a new evaporation furnace stirring device, the problem of material blockage is greatly solved, at the same time, the equipment failure time and the influence on production are reduced, the occurrence of material blockage in the slurry furnace is avoided, and it is safe and reliable. It can be applied to the reaction and transfer processes of a large number of materials in the chemical industry, the operation is convenient and simple, the maintenance is convenient, a large amount of manpower and production suspension time can be saved, the cost can be reduced, and greater economic and social benefits can be created. Description of the Drawings

[0022] To better understand the present utility model, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily drawn to scale, and relevant elements may be omitted, or in some cases the scale may have been enlarged to emphasize and clearly show the novel features described herein. Additionally, as is known in the art, the system components may be arranged differently. Furthermore, in the drawings, the same reference numerals denote corresponding parts throughout several views.

[0023] Figure 1 A first reference schematic diagram of a stirring device for an evaporation furnace according to the present utility model is shown.

[0024] Figure 2 A second reference schematic diagram of a stirring device for an evaporation furnace according to the present utility model is shown.

[0025] Explanation of reference numerals: 1, stirring spiral ribbon; 2, stirring shaft; 3, monitoring sensor; 4, rotating motor; 5, slag discharge valve. Detailed implementation manners

[0026] It should be understood that the embodiments of the present utility model shown in the exemplary embodiments are merely illustrative. Although only a few embodiments of the present utility model have been described in detail, those skilled in the art can easily appreciate that various modifications are feasible without substantially departing from the teachings of the subject matter of the present utility model. Accordingly, all such modifications should be included within the scope of the present utility model. Without departing from the gist of the present utility model, other substitutions, modifications, changes, and deletions can be made to the design, operating conditions, parameters, etc. of the following exemplary embodiments.

[0027] The present utility model provides a stirring device for an evaporation furnace. Please refer to Figure 1 and Figure 2 , including: a stirring spiral ribbon 1, the stirring spiral ribbon 1 being in a strip shape and having a plurality of uniformly distributed through holes on the strip surface; and a stirring shaft 2, the stirring shaft 2 being a cylindrical shaft body, one end of the stirring shaft 2 being vertically installed at the bottom of the evaporation furnace and the other end being vertically installed at the top of the evaporation furnace; the stirring spiral ribbon 1 is spirally arranged on the stirring shaft 2 and is connected to a slag discharge valve 5 located at the bottom of the evaporation furnace for forming a spiral material channel.

[0028] The utility model aims to solve many problems such as blockage failures during the reaction and transportation of chemical materials. The utility model discloses a novel evaporation furnace stirring device for stirring liquid-to-solid titanium powder materials. The technical problems to be solved by the utility model are that the stirring cannot complete the stirring of all areas to form a stirring dead zone, jamming, blockage, leakage, and it is difficult to repair and clean. The remarkable effects of the utility model are: long service life, low failure rate, economic applicability, convenient and reliable operation and maintenance. The utility model can prevent the slag discharge valve of the slurry furnace from jamming and blocking, and solve the equipment failure problems and potential safety hazards for maintenance personnel caused by poor slag discharge effect. The utility model can be applied to the application industries during the transportation and transfer of chemical solid materials. The use of this utility model can save a large amount of labor and shutdown maintenance time, reduce costs, and create greater economic and social benefits.

[0029] In some embodiments, the diameter of the through hole is larger than the external dimension of the material, so as to allow the material to easily pass through it. The design of the through holes in the stirring spiral ribbon 1 allows the material to more easily pass through the stirring blades during stirring, reducing the friction and resistance between the material and the stirring spiral ribbon 1. This helps to reduce energy consumption, improve the stirring efficiency, and enable the material to be mixed evenly more quickly. When the stirring spiral ribbon 1 rotates, the material can flow through the through holes, reducing the residence time of the material on the stirring spiral ribbon 1, preventing the material from accumulating on the stirring spiral ribbon 1 during stirring, further improving the stirring effect, and reducing the friction and resistance between the material and the stirring spiral ribbon 1.

[0030] In some embodiments, please refer to Figure 1 and Figure 2 , the evaporation furnace stirring device further includes: a monitoring sensor 3, which is located at the bottom of the evaporation furnace and is used to monitor the state of the material.

[0031] Integrating the monitoring sensor 3 under the spiral stirring belt is used to monitor the state of the material in real time, such as temperature, humidity, pressure, etc. By transmitting these data to a control system that is communicatively connected to the evaporation furnace stirring device described in the present utility model, more precise stirring control and fault warning can be achieved. The real-time data can immediately respond to the state of the material, avoiding delays or losses. The high-precision sensor can provide accurate measurement data, reducing human errors and uncertainties. The monitoring sensor can detect potential safety hazards, such as material leakage, overheating, etc., and take measures in a timely manner to prevent accidents from occurring.

[0032] As Figure 1 shown, the monitoring sensor 3 and the slag discharge valve 5 are both arranged at the bottom of the evaporation furnace, and the monitoring sensor 3 is arranged around the slag discharge valve 5.

[0033] In some embodiments, please refer to Figure 1 and Figure 2, the evaporation furnace stirring device further includes: a rotating motor 4, which is located at the top of the evaporation furnace and is connected to the stirring shaft 2. In one embodiment, when the rotating motor 4 rotates in the first direction, it drives the stirring shaft 2 to rotate forward, and when the rotating motor 4 rotates in the second direction opposite to the first direction, it drives the stirring shaft 2 to rotate reversely.

[0034] As Figure 2 shown, the rotating motor 4 can perform precise speed and torque control. The size of the rotating motor 4 is generally smaller than that of traditional power equipment, which can save space. This makes the rotating motor 4 more applicable in compact equipment and environments such as the evaporation furnace used in the present utility model. The rotating motor 4 is connected to the stirring shaft 2 through a flange and can be controlled by the control system as described above.

[0035] In some embodiments, please refer to Figure 1 and Figure 2 , the stirring spiral ribbon 1 can rotate forward to mix the materials.

[0036] Under the forward rotation action of the stirring spiral ribbon 1 (for example, rotating clockwise driven by the rotating motor 4), a spiral channel is formed, so that the materials are forced to be mixed. This mixing method can effectively reduce the non-uniformity of the distribution of the particle size, density, temperature, plasticity, etc. of the materials, realize the homogenization of the materials, and make the materials form a certain flow trajectory during the mixing process. This helps to increase the contact area and mixing time between the materials, thereby improving the mixing efficiency. Compared with straight stirring, when the stirring spiral ribbon 1 performs spiral stirring, the working medium will be affected by the centrifugal force to generate a secondary flow, which helps to increase the liquid film disturbance and strengthen the heat transfer, and has certain advantages in terms of heat transfer performance.

[0037] In some embodiments, please refer to Figure 1 and Figure 2 , the stirring spiral ribbon 1 can rotate reversely (for example, rotating counterclockwise driven by the rotating motor 4) to press down and discharge the materials.

[0038] For some materials that are prone to blockage and have strong viscosity, when rotating reversely, the materials can be discharged from the slag discharge valve 5, effectively avoiding the risk of blockage and ensuring the normal operation of the equipment. By rotating reversely, the materials form a certain circulating flow in the spiral channel, which helps to evenly distribute the materials during the conveying process, thereby improving the conveying efficiency of the materials.

[0039] In some embodiments, please refer to Figure 1 and Figure 2 , the side of the stirring spiral ribbon 1 is set to be serrated. The side of the stirring spiral ribbon 1 can be entirely set to be serrated, or only some positions can be set to be serrated.

[0040] The contact area between the serrated edge and the material is increased, enhancing the shear force and turbulence during the stirring process, which can cut, break, and mix the material more effectively, thereby improving the stirring efficiency. The serrated edge can better break up the lumps and agglomerates in the material, making it more evenly distributed in the evaporation furnace and achieving a better mixing effect. For highly viscous or difficult-to-mix materials, the serrated edge can provide a stronger stirring force by increasing the contact area, making it easier to handle these materials.

[0041] In some embodiments, refer to Figure 1 and Figure 2 where the stirring ribbon 1 is one piece. The stirring ribbon 1 is designed to be compact, which makes the equipment more space-saving in terms of occupied space. In a narrow evaporation furnace, using a single stirring ribbon 1 can maximize space savings without the need to provide additional movement space or gaps for multiple stirring blades. The design of a single stirring ribbon 1 simplifies the structure of the entire stirring system, reduces the number of components and complexity, making installation, maintenance, and cleaning easier. In a narrow evaporation furnace, there may be dead corners or areas that are difficult to clean between multiple stirring ribbons 1, resulting in material residue. The design of a single stirring ribbon 1 reduces these potential problems, making the cleaning work easier and reducing the risk of material waste and contamination.

[0042] In some embodiments, refer to Figure 1 and Figure 2 where the stirring ribbon 1 is composed of multiple detachable structures spliced together.

[0043] Designing the stirring ribbon 1 as a detachable modular structure facilitates maintenance and replacement. At the same time, the modular design can also make the stirring ribbon 1 more flexible, allowing the length and number of the stirring ribbon 1 to be adjusted according to needs. If the stirring ribbon 1 is damaged or worn, only the damaged part needs to be replaced instead of the entire stirring equipment. This reduces the cost of equipment replacement and the downtime of the equipment.

[0044] In some embodiments, refer to Figure 1 and Figure 2 where the stirring ribbon 1 is made of 321 stainless steel.

[0045] Use new wear-resistant, corrosion-resistant, and high-temperature-resistant materials to manufacture the spiral stirring belt to extend its service life and improve its performance. Stainless steel 321 is a Ni-Cr-Ti type austenitic stainless steel with characteristics such as corrosion resistance, high temperature resistance, and creep resistance. Ti in this stainless steel exists as a stabilizing element and is also a type of heat-resistant steel, showing better performance than 316L stainless steel in high-temperature environments. 321 stainless steel shows good wear and corrosion resistance in organic and inorganic acids with different concentrations and temperatures, especially in oxidizing media, so it is often used to manufacture wear-resistant acid containers, linings of wear-resistant equipment, conveying pipelines, etc.

[0046] In some embodiments, refer to Figure 1 and Figure 2 , a nano-level flexible protective layer is provided on the surface of the stirring spiral belt 1.

[0047] The nano-level flexible protective layer can effectively isolate the direct contact between the stirring spiral belt 1 and the acidic material, thus significantly extending the service life of the stirring spiral belt 1 and reducing the damage and replacement frequency caused by corrosion. The flexible protective layer on the stirring spiral belt 1 not only protects the stirring spiral belt 1 itself from corrosion but also prevents metals or other materials on the stirring spiral belt 1 from falling off and contaminating the acidic material during the stirring process. The flexible protective layer has good sliding and wear resistance, which helps to reduce friction and resistance during the stirring process, thereby improving the stirring efficiency.

[0048] Compared with the prior art, the utility model solves many problems caused by the original stirring. A new stirring spiral belt is added at the bottom of the stirring and extended to the slag discharge valve to form a comprehensive stirring, thus achieving an effective effect of stirring the slurry furnace. The use effect is good after implementation. When manufacturing the new stirring, the original single-piece stirring is removed, and the stirring spiral belt 1 is used to replace the original stirring. When the stirring rotates forward, the material can be turned upwards and in a state of being thrown upwards, allowing the material to be fully mixed and stirred. When the material needs to be discharged, the stirring is reversed. The stirring with the spiral belt can press down and discharge the material in the furnace after reversing, avoiding the occurrence of faults caused by insufficient mixing reaction and blockage of the material. The new stirring has a good use effect after being put into production. It greatly reduces equipment failures and improves operation efficiency; saves a large amount of manpower and production shutdown and maintenance time, reduces cost consumption, and can create greater economic and social benefits.

[0049] The above embodiments are possible examples of the implementation manners of the present utility model, and are only given to enable those skilled in the art to clearly understand the principle of the present utility model. Those skilled in the art should understand that the discussion of any above embodiment is only exemplary, and is not intended to imply that the scope (including the claims) disclosed by the embodiments of the present utility model is limited to these examples. Under the overall concept of the present utility model, the technical features in the above embodiments or different embodiments can also be combined with each other, and many other variations of different aspects of the embodiments of the present utility model as described above are generated. For the sake of brevity, they are not provided in the specific implementation manners. Therefore, any omission, modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model shall be included within the scope of protection required by the present utility model.

Claims

1. An evaporation furnace stirring device, characterized in that, Including: A stirring spiral ribbon (1), the stirring spiral ribbon (1) is in a ribbon shape, and a number of uniformly distributed through holes are provided on the ribbon surface; And A stirring shaft (2), the stirring shaft (2) is a cylindrical shaft body, one end of the stirring shaft (2) is vertically installed at the bottom of the evaporation furnace, and the other end is vertically installed at the top of the evaporation furnace; The stirring spiral ribbon (1) is spirally arranged on the stirring shaft (2) and is connected to a slag discharge valve (5) located at the bottom of the evaporation furnace, for forming a spiral material channel.

2. The evaporation furnace stirring device according to claim 1, wherein It further includes: A monitoring sensor (3), the monitoring sensor (3) is located at the bottom of the evaporation furnace, for monitoring the material state.

3. The evaporation furnace stirring device according to claim 1, characterized in that, It further includes: A rotating motor (4), the rotating motor (4) is located at the top of the evaporation furnace and is connected to the stirring shaft (2).

4. The evaporation furnace stirring device according to claim 1, characterized in that, The stirring spiral ribbon (1) can rotate forward, for mixing materials.

5. The evaporation furnace stirring device according to claim 1, wherein The stirring spiral ribbon (1) can rotate backward, for pressing and discharging materials.

6. The evaporation furnace stirring device according to claim 1, characterized in that, The side of the stirring spiral ribbon (1) is provided with serrations.

7. The evaporation furnace stirring device according to claim 1, characterized in that, The stirring spiral ribbon (1) is one piece.

8. The evaporation furnace stirring device according to claim 1, characterized in that, The stirring spiral ribbon (1) is composed of multiple detachable structures spliced together.

9. The evaporation furnace stirring device according to claim 1, characterized in that, The stirring spiral ribbon (1) is made of 321 stainless steel.

10. The evaporation furnace stirring device according to claim 1, characterized in that The surface of the stirring spiral ribbon (1) is provided with a nanoscale flexible protective layer.

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