Cooler for sulfuric acid processing

Abstract

The utility model provides a cooler for sulfuric acid processing, and relates to the technical field of sulfuric acid cooling. A sulfuric acid leading-in box is fixed at the top of the cooler shell; a conveying shell is arranged on the left side of the top of the cooler shell; a conveying roller is rotationally mounted on the inner side of the conveying shell; a stepping motor is installed on the front side of the conveying shell through a support, and the rear end of a main shaft of the stepping motor is fixedly connected with the front end of a rotating shaft of the conveying roller. A sulfuric acid eduction tube is arranged in the middle of the right side of the cooler shell; a cooling cavity, a first air cooling cavity and a second air cooling cavity are formed in the cooler shell. A plurality of flow guide plates are arranged in the first air cooling cavity and the second air cooling cavity at equal intervals. The outer side of the first air cooling cavity and the outer side of the second air cooling cavity are each provided with an air inlet pipe. According to the cooler, extra heat exchange can be conducted through a flow adjusting structure to achieve cooling, and the overall cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sulfuric acid cooling technology, and in particular to a cooler for sulfuric acid processing. Background Technology

[0002] Cooling is a crucial step in sulfuric acid processing. The main purpose of cooling is to lower the temperature of the sulfuric acid for subsequent storage, transportation, and use. Cooling also helps remove impurities from the sulfuric acid, improving its purity.

[0003] Currently, the cooling devices used in sulfuric acid processing generally employ a single cooling process to cool the sulfuric acid, supplemented by flow control mechanisms to optimize the cooling effect. Although the flow control structure can adjust the flow rate of sulfuric acid to achieve better cooling distribution, these structures themselves do not participate in the cooling process and only exist as auxiliary components for adjusting the flow. When sulfuric acid flows through these control structures, this part of the process is not effectively utilized for additional heat exchange, resulting in a waste of cooling potential and limiting the overall cooling efficiency. Summary of the Invention

[0004] This invention provides a cooler for sulfuric acid processing, which can achieve cooling by utilizing an adjustable flow rate structure to perform additional heat exchange, thereby improving the overall cooling efficiency.

[0005] In a first aspect, this disclosure provides a cooler for sulfuric acid processing, specifically comprising: a cooler housing;

[0006] A sulfuric acid inlet box is fixed to the top of the cooler housing; a conveying housing is provided on the top left side of the cooler housing; a conveying roller is rotatably installed inside the conveying housing; a stepper motor is mounted on the front side of the conveying housing via a bracket, and the rear end of the stepper motor's main shaft is fixedly connected to the front end of the conveying roller's rotating shaft; a sulfuric acid outlet pipe is provided in the middle of the right side of the cooler housing; the cooler housing is provided with a cooling cavity, a first air-cooled cavity, and a second air-cooled cavity; several guide plates are equidistantly arranged inside the first and second air-cooled cavities; an air inlet pipe is also provided on the outside of the first and second air-cooled cavities.

[0007] In at least some embodiments, the left side of the cooling cavity is connected to the opening at the bottom of the conveying housing, the right side of the cooling cavity is connected to the sulfuric acid outlet pipe, and several partitions are also equidistantly arranged in the cooling cavity.

[0008] In at least some embodiments, the conveying housing has a cylindrical cavity with openings at both the top and bottom, and the outer wall of the conveying roller is in close contact with the inner wall of the cylindrical cavity inside the conveying housing.

[0009] In at least some embodiments, the No. 1 air-cooled cavity and the No. 2 air-cooled cavity are located at the top and bottom of the cooling cavity, respectively. The guide plate is provided with an opening that connects the front and rear side slots, and the openings on the guide plate are staggered.

[0010] In at least some embodiments, two elongated grooves are symmetrically arranged on the outer side of the conveying roller, and the width of the elongated grooves is equal to the width of the openings at the top and bottom of the cylindrical cavity in the conveying housing.

[0011] In at least some embodiments, the air inlet pipe on the first air-cooled cavity is located on the front side, and an air outlet is provided at the middle position of its rear side; the air inlet pipe on the second air-cooled cavity is located on the rear side, and an air outlet is also provided at the middle position of its front side.

[0012] In at least some embodiments, the conveying roller has a cavity inside, the rotating shafts at the front and rear ends of the conveying roller are connected to the cavity inside the conveying roller, and the rotating shaft at the rear end of the conveying roller is a round tube, and the outer wall of the rotating shaft at the front end of the conveying roller has four through round holes.

[0013] This invention provides a cooler for sulfuric acid processing, which has the following advantages:

[0014] The conveying roller in this invention can transport sulfuric acid by means of the groove on its outer side when it rotates. The flow rate can also be adjusted by controlling the rotation speed of the conveying roller. In addition, cold air can be introduced into the conveying roller to pre-cool the sulfuric acid during use. The cooling cavity, together with the cold air in the first and second air-cooling cavities, can achieve secondary cooling. This cooler can achieve cooling by using the structure of adjusting the flow rate for additional heat exchange, thereby improving the overall cooling efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application from the main axis side is shown;

[0019] Figure 2 This shows a schematic diagram of the main shaft side after vertical sectioning of this application;

[0020] Figure 3 This shows an axonometric view of the first air-cooled cavity after a transverse section in this application;

[0021] Figure 4This shows an axonometric view of the second air-cooled cavity after transverse sectioning in this application;

[0022] Figure 5 This shows an axial side view of the cooling cavity after a transverse section in this application;

[0023] Figure 6 This application shows a schematic diagram of the structure of the conveyor roller after it has been cut open.

[0024] List of reference numerals

[0025] 1. Cooler housing; 2. Sulfuric acid inlet box; 3. Conveying housing; 4. Conveying roller; 5. Stepper motor; 6. Sulfuric acid outlet pipe; 7. Cooling cavity; 8. No. 1 air-cooled cavity; 9. Guide plate; 10. Air inlet pipe; 11. No. 2 air-cooled cavity. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a cooler for sulfuric acid processing, comprising: a cooler shell 1;

[0029] A sulfuric acid inlet box 2 is fixed to the top of the cooler housing 1. The cooler housing 1 supports the other parts of the cooler structure, and the sulfuric acid inlet box 2 holds the sulfuric acid that needs to be cooled. A conveying housing 3 is located on the top left side of the cooler housing 1. The conveying housing 3 supports the rotation of the conveying roller 4. A conveying roller 4 is rotatably mounted inside the conveying housing 3. When the conveying roller 4 rotates, it can convey sulfuric acid downwards by means of the long groove on its outer side. Moreover, the introduction of cold air into the cavity inside the conveying roller 4 can also play a preliminary cooling role for the sulfuric acid. A stepper motor 5 is mounted on the front side of the conveying housing 3 through a bracket. The rear end of the main shaft of the stepper motor 5 is fixedly connected to the front end of the rotating shaft of the conveying roller 4. The stepper motor 5 is used to drive the conveying roller 4 to rotate. A sulfuric acid outlet pipe 6 is located in the middle of the right side of the cooler housing 1. The cooler housing 1 is used to discharge the cooled sulfuric acid to the outside. It contains a cooling cavity 7, a first air-cooled cavity 8, and a second air-cooled cavity 11. The cooling cavity 7 guides the flow of sulfuric acid, which, in conjunction with the cold air in the first and second air-cooled cavities 8 and 11, provides secondary cooling. Both the first and second air-cooled cavities 8 and 11 have several guide plates 9 evenly spaced inside. When the cold air flows inside these cavities, it repeatedly flows through the staggered openings on the guide plates 9, ensuring uniform contact between the cold air and the outer wall of the cooling cavity 7, thus improving the cooling effect on the sulfuric acid within the cooling cavity 7. Both the first and second air-cooled cavities 8 and 11 also have an air inlet pipe 10 on their outer sides, which introduces cold air into the first and second air-cooled cavities 8 and 11.

[0030] In this embodiment of the disclosure, such as Figure 2 and Figure 5 As shown, the left side of the cooling cavity 7 is connected to the opening at the bottom of the conveying housing 3, and the right side of the cooling cavity 7 is connected to the sulfuric acid outlet pipe 6. Several baffles are also equidistantly arranged in the cooling cavity 7. The cooling cavity 7 is used to guide the sulfuric acid. The baffles inside it can make it flow evenly to the right, and the baffles can also exchange heat to improve the cooling effect.

[0031] In this embodiment of the disclosure, such as Figure 1 and Figure 2 As shown, the conveying housing 3 has a cylindrical cavity with openings at both the top and bottom. The outer wall of the conveying roller 4 is in close contact with the inner wall of the cylindrical cavity inside the conveying housing 3. Therefore, the conveying roller 4 can rotate stably in the cylindrical cavity inside the conveying housing 3. Moreover, the cooperation between the conveying roller 4 and the inner wall of the conveying housing 3 can also separate the cavities at the top and bottom of the conveying housing 3, so that the flow rate can be adjusted by adjusting the rotation speed of the conveying roller 4.

[0032] In this embodiment of the disclosure, such as Figures 2-4As shown, the No. 1 air-cooled cavity 8 and the No. 2 air-cooled cavity 11 are located at the top and bottom of the cooling cavity 7, respectively. The guide plates 9 are provided with openings that connect the front and rear side slots, and the openings on the guide plates 9 are staggered. When the cold air flows inside the No. 1 air-cooled cavity 8 and the No. 2 air-cooled cavity 11, it will flow repeatedly through the staggered openings on the guide plates 9, thereby ensuring that the cold air is in uniform contact with the outer wall of the cooling cavity 7, improving the cooling effect on the sulfuric acid in the cooling cavity 7. Moreover, the No. 1 air-cooled cavity 8 and the No. 2 air-cooled cavity 11 can also cool the top and bottom of the cooling cavity 7 more efficiently.

[0033] In this embodiment of the disclosure, such as Figure 2 and Figure 6 As shown, two elongated grooves are symmetrically arranged on the outer side of the conveying roller 4, and the width of the elongated grooves is equal to the width of the openings at the top and bottom of the cylindrical cavity in the conveying housing 3. When one of the elongated grooves on the outer side of the conveying roller 4 rotates to the top, the sulfuric acid in the sulfuric acid inlet box 2 will flow into the elongated groove on the outer side of the conveying roller 4. As the conveying roller 4 continues to rotate, it will drive the sulfuric acid in the elongated groove to move downward. When the elongated groove rotates to the bottom, the sulfuric acid inside it will flow into the cooling cavity 7 through the opening at the bottom of the conveying housing 3.

[0034] In this embodiment of the disclosure, such as Figure 2 and Figure 6 As shown, the conveyor roller 4 has a cavity inside. The rotating shafts at both the front and rear ends of the conveyor roller 4 are connected to the cavity inside the conveyor roller 4. The rotating shaft at the rear end of the conveyor roller 4 is a round tube. The outer wall of the rotating shaft at the front end of the conveyor roller 4 has four through round holes. During the rotation of the conveyor roller 4, the cold air blown out by the external air cooler will enter the cavity inside the conveyor roller 4 through the round tube at the rear end of the conveyor roller 4 and flow forward. Because the outer wall of the conveyor roller 4 will absorb some of the heat from the sulfuric acid, the cold air in the cavity inside the conveyor roller 4 can absorb this heat. Finally, the air will be discharged outward through the round holes on the outer wall of the rotating shaft at the front end of the conveyor roller 4, thus completing the initial cooling.

[0035] Example 2, based on Example 1, such as Figures 1-6 As shown, the air inlet pipe 10 on the first air-cooled cavity 8 is located on the front side, and an air outlet is located in the middle of its rear side. The air inlet pipe 10 on the second air-cooled cavity 11 is located on the rear side, and an air outlet is also located in the middle of its front side. Therefore, the cold air in the first air-cooled cavity 8 will flow from front to back and be discharged outward through the air outlet in the middle of its rear side. The cold air in the second air-cooled cavity 11 will flow from back to front and be discharged outward through the air outlet in the middle of its front side. This avoids the coldest air being concentrated on the front or back side, resulting in more uniform cooling.

[0036] The working principle of this embodiment is as follows: During installation, the cooler housing 1 can be placed in the usage position, and the stepper motor 5 can be connected to the external controller and power supply. Simultaneously, the circular tube at the rear end of the conveying roller 4 and the two air inlet pipes 10 can be connected to the air outlet of the external cooling fan. When sulfuric acid needs to be cooled, the sulfuric acid to be cooled is first poured into the sulfuric acid inlet box 2. Then, the stepper motor 5 is controlled to start rotating, and the external cooling fan is turned on. When the stepper motor 5 rotates, it drives the conveying roller 4 to rotate synchronously in the cylindrical cavity inside the conveying housing 3. When one of the elongated grooves on the outer side of the conveying roller 4 rotates to the top, the sulfuric acid in the sulfuric acid inlet box 2 will flow into the elongated groove on the outer side of the conveying roller 4. As the conveying roller 4 continues to rotate, it will drive the sulfuric acid in the elongated groove to move downwards. When this elongated groove rotates to the bottom, the sulfuric acid inside will flow into the cooling cavity 7 through the opening at the bottom of the conveying housing 3. Furthermore, during the conveying process... During the rotation of roller 4, the cold air blown by the external air cooler enters the cavity inside the conveyor roller 4 through the round tube at the rear end of the conveyor roller 4 and flows forward. Because the outer wall of the conveyor roller 4 absorbs some of the heat from the sulfuric acid, the cold air in the cavity inside the conveyor roller 4 can absorb this heat. Finally, the air is discharged outward through the round hole on the outer wall of the front shaft of the conveyor roller 4, thus completing the initial cooling. Then, the sulfuric acid flows to the right in the cooling cavity 7. During this process, the cold air blown by the external air cooler also enters the first air-cooled cavity 8 and the second air-cooled cavity 11 through the air inlet pipe 10. When the cold air flows inside the first air-cooled cavity 8 and the second air-cooled cavity 11, it flows repeatedly through the staggered openings on the guide plate 9, thus ensuring that the cold air is in uniform contact with the outer wall of the cooling cavity 7, improving the cooling effect on the sulfuric acid in the cooling cavity 7. Finally, the cooled sulfuric acid is discharged outward through the sulfuric acid outlet pipe 6.

[0037] The following points should be noted in this article:

[0038] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0039] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A cooler for sulfuric acid processing, comprising: Cooler housing; characterized in that: A sulfuric acid inlet box is fixed to the top of the cooler housing; a conveying housing is provided on the top left side of the cooler housing; a conveying roller is rotatably installed inside the conveying housing; a stepper motor is mounted on the front side of the conveying housing via a bracket, and the rear end of the stepper motor's main shaft is fixedly connected to the front end of the conveying roller's rotating shaft; a sulfuric acid outlet pipe is provided in the middle of the right side of the cooler housing; the cooler housing is provided with a cooling cavity, a first air-cooled cavity, and a second air-cooled cavity; several guide plates are equidistantly arranged inside the first and second air-cooled cavities; an air inlet pipe is also provided on the outside of the first and second air-cooled cavities.

2. A cooler for sulfuric acid processing according to claim 1, characterized in that, The conveying housing has a cylindrical cavity with openings at both the top and bottom, and the outer wall of the conveying roller is in close contact with the inner wall of the cylindrical cavity inside the conveying housing.

3. A cooler for sulfuric acid processing according to claim 1, characterized in that, The outer side of the conveying roller is symmetrically provided with two elongated grooves, and the width of the elongated grooves is equal to the width of the openings at the top and bottom of the cylindrical cavity in the conveying housing.

4. A cooler for sulfuric acid processing according to claim 1, characterized in that, The conveying roller has a cavity inside, and the rotating shafts at both the front and rear ends of the conveying roller are connected to the cavity inside the conveying roller. The rotating shaft at the rear end of the conveying roller is a round tube, and the outer wall of the rotating shaft at the front end of the conveying roller has four through round holes.

5. A cooler for sulfuric acid processing according to claim 1, characterized in that, The left side of the cooling cavity is connected to the opening at the bottom of the conveying housing, and the right side of the cooling cavity is connected to the sulfuric acid outlet pipe. Several partitions are also equidistantly arranged in the cooling cavity.

6. A cooler for sulfuric acid processing according to claim 1, characterized in that, The No. 1 air-cooled cavity and the No. 2 air-cooled cavity are located at the top and bottom of the cooling cavity, respectively. The guide plate is provided with an opening that connects the front and rear side slots, and the openings on the guide plate are staggered.

7. A cooler for sulfuric acid processing according to claim 1, characterized in that, The air inlet pipe on the No. 1 air-cooled cavity is located on the front side, and an air outlet is provided at the middle position of its rear side. The air inlet pipe on the No. 2 air-cooled cavity is located on the rear side, and an air outlet is also provided at the middle position of its front side.

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