Recycling device and process of ferrous sulfate monohydrate
By using temperature regulation and driving mechanism in the ferrous sulfate monohydrate recovery device, the crystal adhesion problem is solved, the recovery rate and equipment maintenance efficiency are improved, and efficient ferrous sulfate recovery is achieved.
Patent Information
- Application Number
- CN202411478942.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2024-12-31
AI Technical Summary
During the recovery process of ferrous sulfate monohydrate, crystals are prone to stick to the equipment, resulting in plate bonding and not easy to fall off, affecting equipment maintenance and product recovery.
A device including a storage tank, a crystallization cylinder and a temperature adjustment mechanism is designed. By controlling the temperature in the crystallization cylinder under an oxygen-free environment, the ferrous sulfate crystal precipitates and falls off, and the crystallization cylinder is cleaned by a driving mechanism. , reduce maintenance frequency.
有效避免了晶体附着导致的回收率下降,降低了设备维护频率和成本,提高了结晶效率和产品回收率。
Smart Images
Figure CN119215468A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of chemical material recycling, and in particular to a ferrous sulfate monohydrate recycling device and process. Background Art
[0003] Ferrous sulfate monohydrate (FeSO4·H2O), an important industrial chemical, is widely used in water treatment, agriculture, medicine, and the chemical industry. With the acceleration of industrialization, the demand for ferrous sulfate monohydrate has continued to increase, and its recovery technology has also developed accordingly. In the early days, the recovery of ferrous sulfate monohydrate relied mainly on simple physical precipitation and filtration methods, but these methods were inefficient and difficult to meet the needs of large-scale industrial production. With the advancement of technology, vacuum crystallization and freeze crystallization have been introduced into the ferrous sulfate monohydrate recovery process, significantly improving recovery efficiency and product quality. The development of these technologies has not only promoted the recycling of resources but also reduced environmental pollution.
[0004] Currently, the recycling of ferrous sulfate monohydrate primarily involves two methods: vacuum crystallization and freeze crystallization. Vacuum crystallization reduces the boiling point of the solution by lowering the pressure, prompting the crystallization of ferrous sulfate monohydrate. Freeze crystallization, on the other hand, utilizes a low-temperature environment to directly crystallize ferrous sulfate monohydrate from the solution. While these methods improve crystallization efficiency and product quality to a certain extent, they still have some limitations. For example, vacuum crystallization consumes a lot of energy and has high equipment costs; freeze crystallization suffers from low freezing efficiency and crystals that stick to the equipment, resulting in clumping and difficulty in falling off. These issues hinder the further development of ferrous sulfate monohydrate recovery technology.
[0005] While existing ferrous sulfate monohydrate recovery technology has made some progress, some challenges remain. For example, crystals tend to stick to the equipment during crystallization, resulting in a hardened structure that is difficult to remove. This not only affects equipment maintenance but also reduces product recovery. Summary of the Invention
[0007] The main purpose of the present invention is to provide a ferrous sulfate monohydrate recovery and utilization device and process, aiming to solve the technical problem in the prior art that crystals are easily adhered to the equipment during the crystallization process, resulting in hardening and difficulty in falling off, which not only affects the maintenance of the equipment but also reduces the recovery rate of the product.
[0008] To achieve the above objectives, in a first aspect, the present invention provides a ferrous sulfate monohydrate recovery and utilization device, comprising: A material storage tank, wherein a material storage chamber is formed in the material storage tank, and a discharge port and a feed port are formed on the side wall of the material storage tank, both of which are connected to the material storage chamber, and the discharge port and the feed port are spaced apart; A crystallization cylinder, wherein the crystallization cylinder is in sealed communication with the discharge port and is rotatably coupled to the storage tank, so that the saturated ferrous sulfate solution stored in the storage chamber can flow into the crystallization cylinder through the discharge port and precipitate ferrous sulfate crystals in the crystallization cylinder; a driving mechanism, wherein the driving mechanism is installed on the crystallization cylinder, and the driving mechanism connects the crystallization cylinder with an external storage tank through a pipeline, so that the ferrous sulfate solution after the crystallization operation in the crystallization cylinder can be discharged into the external storage tank, or the driving mechanism can draw the ferrous sulfate solution stored in the external storage tank into the crystallization cylinder and clean the crystallization cylinder; and A temperature regulating mechanism is installed on the outer periphery of the crystallization cylinder, and the temperature regulating mechanism can heat or cool the crystallization cylinder so that the temperature of the crystallization cylinder can change within a preset temperature range, and correspondingly, when the ferrous sulfate solution is emptied, the crystallized ferrous sulfate monohydrate crystals fall off from the inner wall of the crystallization cylinder, or the ferrous sulfate solution fed into the crystallization cylinder through the driving mechanism cleans the crystallization cylinder.
[0009] In one embodiment, the crystallization cylinder is made of heat-conducting material; The temperature regulating mechanism comprises: a first heat-conducting component, wherein the first heat-conducting component module is arranged around the outer periphery of the crystallizing cylinder, a first heat-conducting medium flow channel is formed in the first heat-conducting component, and a first inlet and a first outlet are formed on the first heat-conducting component and are spaced apart, and the first inlet and the first outlet are both connected to the first heat-conducting medium flow channel; a second heat-conducting component, the second heat-conducting component being installed outside the crystallizing cylinder, and the second heat-conducting component being spaced apart from the crystallizing cylinder, a second heat-conducting medium flow channel being formed in the second heat-conducting component, a second inlet and a second outlet being spaced apart being formed on the second heat-conducting component, the second inlet and the second outlet being both in communication with the second heat-conducting medium flow channel, and the second outlet being in communication with the first inlet through a first pipeline, a first flow regulating component being provided on the first pipeline for controlling its flow rate; and A compressor, wherein a third inlet and a third outlet are formed on the compressor, the third inlet is connected to the second outlet through a second pipeline, and the third outlet is connected to the first inlet through a third pipeline, a position of the second pipeline near the third inlet and a position of the third pipeline near the third outlet are connected to each other through the first branch and the second branch arranged at intervals, and a control valve is respectively installed at the first branch, the second branch, the position of the second pipeline near the third inlet, and the position of the third pipeline near the third outlet; The compressor can turn the first heat-conducting component into a condenser to cool the crystallization cylinder when the first branch and the second branch are closed, or the compressor can turn the first heat-conducting component into an evaporator to heat the crystallization cylinder when the first branch and the second branch are opened.
[0010] In one embodiment, the first flow regulating component includes: a connecting pipe, the connecting pipe being formed on the second pipeline and having a hole formed on the connecting pipe; an aperture adjustment member, the aperture adjustment member being located in the connecting tube and arranged along the extension direction of the connecting tube, the two ends of the aperture adjustment member being respectively in sealed communication with the two ends of the connecting tube to separate a flow channel and an adjustment cavity surrounding the flow channel in the connecting tube, the hole being in communication with the adjustment cavity; and A first driving member, wherein the first driving member is exposed outside the connecting tube, and at least a portion of the first driving member extends into the adjusting cavity and covers the outer periphery of the aperture adjusting member, and the first driving member can drive the aperture adjusting member to contract or expand to correspondingly reduce or increase the flow channel.
[0011] In one embodiment, the aperture adjusting member is a membrane structure made of elastic material or memory material.
[0012] In one embodiment, a first three-way joint is provided on the third inlet, a second three-way joint is provided on the third outlet, and both discharge ports of the first three-way joint and both discharge ports of the second three-way joint are provided with a control valve.
[0013] In one embodiment, the control valve is made of a one-way valve, the two one-way valves on the first three-way connector both flow in a direction away from the third inlet, and the two one-way valves on the second three-way connector are both set in a direction flowing into the third outlet.
[0014] In one embodiment, the crystallization cylinder comprises: a cylinder, the cylinder being sealed and connected to the discharge port, the first heat-conducting component being arranged around the outer periphery of the cylinder, and the cylinder being made of a heat-conducting material, the bottom of the cylinder forming a discharge port, a third three-way joint being installed on the discharge port, one end of the third three-way joint being connected to the external storage tank through a discharge pipe, and the other end of the third three-way joint being used to discharge the ferrous sulfate monohydrate crystals; and A crystal attachment is provided in the barrel, a heat exchange channel is formed in the crystal attachment, and at least a portion of the heat-conducting component can extend into the heat exchange channel to exchange heat with the barrel through the heat exchange channel.
[0015] In one embodiment, there are a plurality of heat exchange channels, and the plurality of heat exchange channels are distributed in the cylinder at intervals and in a staggered manner.
[0016] In one embodiment, an ultrasonic vibrator is further installed in each of the heat exchange channels, and the ultrasonic vibrator can ultrasonically vibrate the cylinder through the side wall of the heat exchange channel when the ferrous sulfate solution is drained, so as to cooperate with the temperature adjustment mechanism to cause the crystallized ferrous sulfate monohydrate crystals to fall off from the inner wall of the cylinder; and / or, A liquid concentration detection sensor is also installed in the cylinder.
[0017] Based on the same technical concept, in a second aspect, the present invention further proposes a ferrous sulfate monohydrate recovery and utilization process, applying the ferrous sulfate monohydrate recovery and utilization device described in the first aspect, wherein the ferrous sulfate monohydrate recovery and utilization device comprises the following steps: Controlling the temperature regulating mechanism to adjust the current temperature in the crystallization cylinder to meet a preset temperature condition in an oxygen-free environment; According to the current operation instruction, continue to control the temperature adjustment mechanism to perform temperature adjustment operation on the crystallization cylinder; wherein the current operation instruction includes a crystal precipitation instruction, a cleaning instruction for cleaning the crystallization cylinder, and a crystal discharge instruction; When the natural operation instruction is a crystal discharge instruction, the temperature regulating mechanism is controlled to increase the temperature of the crystallization cylinder so that the ferrous sulfate monohydrate crystals attached to the crystallization cylinder fall off and are discharged for recovery.
[0018] The technical solution of the present invention is through arranging a storage tank, a crystallizing cylinder, a driving mechanism and a temperature regulating mechanism. When in use, in an oxygen-free environment, the supersaturated ferrous sulfate solution stored in the storage tank is discharged into the crystallizing cylinder from the discharge port, so that the supersaturated ferrous sulfate solution can have a crystal precipitation condition in the crystallizing cylinder. After the supersaturated ferrous sulfate solution flows into the crystallizing cylinder, the temperature regulating mechanism is controlled to heat the crystallizing cylinder so that the temperature environment in the crystallizing cylinder can be maintained in an environment suitable for crystal precipitation and crystallization of ferrous sulfate monohydrate is carried out. After crystal precipitation is completed, the driving mechanism provided is utilized to discharge the remaining ferrous sulfate into an external storage tank for storage. At this time, the temperature regulating mechanism can be continuously controlled to continue heating the crystallizing cylinder, thereby destroying the van der Waals force or electrostatic force between the crystals, so that the ferrous sulfate monohydrate crystals attached to the crystallizing cylinder can fall off, and finally discharged from the crystallizing cylinder, thereby realizing the function of recycling the ferrous sulfate monohydrate crystals. At the same time, the present invention utilizes the temperature regulating mechanism provided to regulate the temperature in the crystallization cylinder during use, which can not only control the crystallization efficiency of ferrous sulfate monohydrate, but also destroy the van der Waals force or electrostatic force of the ferrous sulfate monohydrate crystals attached to the crystallization cylinder, so that the ferrous sulfate monohydrate crystals can fall off, thereby avoiding a decrease in the recovery rate of ferrous sulfate monohydrate crystals due to the attachment of the ferrous sulfate monohydrate crystals. In addition, due to the presence of the temperature regulating mechanism and the external storage tank, the present invention can also redissolve a small amount of ferrous sulfate monohydrate crystals that have not completely fallen off during specific implementation, thereby achieving the function of cleaning the crystallization cylinder and reducing the maintenance frequency and maintenance cost of the crystallization cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0021] Figure 1 A schematic structural diagram of a ferrous sulfate monohydrate recovery and utilization device provided by the present invention; Figure 2 for Figure 1 A structural diagram of the specific structure of the example; Figure 3 for Figure 2 A schematic structural diagram of the temperature regulating mechanism exemplified in FIG. Figure 4 for Figure 2 A schematic structural diagram of the first flow regulating component of the example; Figure 5The figure is a flow chart of the ferrous sulfate monohydrate recovery and utilization process according to an example of the present invention.
[0022] Description of Figure Numbers: 100, storage tank; 110, storage chamber; 120, discharge port; 130, feed port; 200, crystallization cylinder; 300, drive mechanism; 400, external storage tank; 500, temperature regulating mechanism; 510, first heat-conducting component; 511, first inlet; 512, first outlet; 513, first heat-conducting medium flow channel; 520, second heat-conducting component; 521, second inlet; 522, second outlet; 523, second heat-conducting medium flow channel; 530, first pipeline; 540, first flow regulating assembly; 550, compressor; 551, third inlet; 552, third outlet; 560, first Branch; 570, second branch; 580, control valve; 541, connecting pipe; 542, aperture adjustment member; 543, flow channel; 544, adjustment chamber; 545, hole; 546, first driving member; 571, first three-way joint; 572, second three-way joint; 210, cylinder; 220, discharge port; 230, third three-way joint; 240, crystal attachment member; 250, heat exchange channel; 260, ultrasonic vibrator; 270, liquid concentration detection sensor; 546a, handle; 546b, connecting rod; 546c, connecting ring; 546d, adjustment hoop; 51, second pipeline; 52, third pipeline.
[0023] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0027] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0028] The present invention provides a device and process for recovering and utilizing ferrous sulfate monohydrate.
[0029] See also Figures 1 to 5 , for ease of understanding, the ferrous sulfate monohydrate recovery and utilization device includes a storage tank 100, a crystallization cylinder 200, a driving mechanism 300 and a temperature regulating mechanism 500. A storage chamber 110 is formed in the storage tank 100, and a discharge port 120 and a feed port 130 are formed on the side wall of the storage tank 100, both of which are connected to the storage chamber 110. The discharge port 120 and the feed port 130 are spaced apart. The crystallization cylinder 200 is sealed and connected to the discharge port 120, and the crystallization cylinder 200 is rotatably matched with the storage tank 100. The saturated ferrous sulfate solution stored in the storage chamber 110 can flow into the crystallization cylinder 200 through the discharge port 120 and precipitate ferrous sulfate crystals in the crystallization cylinder 200. The driving mechanism 300 is installed on the crystallization cylinder 200, and the driving mechanism 300 is connected to the crystallization cylinder 200 through the pipe The road connects the crystallization cylinder 200 with the external storage tank 400, and the ferrous sulfate solution after the crystallization operation in the crystallization cylinder 200 can be discharged into the external storage tank 400, or the driving mechanism 300 can draw the ferrous sulfate solution stored in the external storage tank 400 into the crystallization cylinder 200 and clean the crystallization cylinder 200. The temperature regulating mechanism 500 is installed on the outer periphery of the crystallization cylinder 200, and the temperature regulating mechanism 500 can heat or cool the crystallization cylinder 200 so that the temperature of the crystallization cylinder 200 can change within a preset temperature range, and correspondingly, when the ferrous sulfate solution is emptied, the crystallized ferrous sulfate monohydrate crystals fall off from the inner wall of the crystallization cylinder 200, or the ferrous sulfate solution sent into the crystallization cylinder 200 by the driving mechanism 300 is used to clean the crystallization cylinder 200.
[0030] In this embodiment, by providing a storage tank 100, a crystallizing cylinder 200, a driving mechanism 300 and a temperature regulating mechanism 500, when in use, in an oxygen-free environment, the supersaturated ferrous sulfate solution stored in the storage tank 100 is discharged from the discharge port 120 into the crystallizing cylinder 200, so that the supersaturated ferrous sulfate solution can meet the crystallizing conditions in the crystallizing cylinder 200. After the supersaturated ferrous sulfate solution flows into the crystallizing cylinder 200, the temperature regulating mechanism 500 is controlled to heat the crystallizing cylinder 200 so that the temperature environment in the crystallizing cylinder 200 is It can maintain an environment suitable for crystal precipitation and carry out crystal precipitation of ferrous sulfate monohydrate. After the crystal precipitation is completed, the set driving mechanism 300 is used to discharge the remaining ferrous sulfate into the external storage tank 400 for storage. At this time, the temperature regulating mechanism 500 can be continued to control the crystallization cylinder 200 to continue to heat up, thereby destroying the van der Waals force or electrostatic force between the crystals, so that the ferrous sulfate monohydrate crystals attached to the crystallization cylinder 200 can fall off and finally be discharged from the crystallization cylinder 200, thereby realizing the function of recycling the ferrous sulfate monohydrate crystals. At the same time, the present invention utilizes the temperature regulating mechanism 500 to regulate the temperature in the crystallization cylinder 200 when in use, which can not only control the crystal precipitation efficiency of ferrous sulfate monohydrate, but also destroy the van der Waals force or electrostatic force of the ferrous sulfate monohydrate crystals attached to the crystallization cylinder 200, so that the ferrous sulfate monohydrate crystals can fall off, avoiding the decrease in the recovery rate of ferrous sulfate monohydrate crystals due to the attachment of ferrous sulfate monohydrate crystals. In addition, due to the presence of the temperature regulating mechanism 500 and the external storage tank 400, the present invention can also redissolve a small amount of ferrous sulfate monohydrate crystals that have not completely fallen off during specific implementation, thereby realizing the function of cleaning the crystallization cylinder 200 and reducing the maintenance frequency and maintenance cost of the crystallization cylinder 200.
[0031] It should be noted that, in this embodiment, the storage tank 100, the crystallization cylinder 200, and the storage tank should all be in an oxygen-free state during use. In this oxygen-free state, the oxidative denaturation of ferrous sulfate can be avoided. The preset temperature range in this embodiment is preferably in the range of 10°C to 40°C.
[0032] Of course, in an exemplary embodiment, the feed port 130 of the storage tank 100 may also be connected to the storage tank through a pipeline to discharge the dilute ferrous sulfate solution after crystal precipitation stored in the storage tank into the storage tank 100, thereby performing a secondary configuration function of the supersaturated ferrous sulfate solution. It can be further emphasized that in this embodiment, the exemplary storage tank 100 may be an evaporation tank or a concentration tank. By configuring the storage tank 100 as an evaporation tank or a concentration tank, the present invention, when used in a specific embodiment, can concentrate the ferrous sulfate solution entering it through the feed port 130 to achieve the function of preparing a supersaturated ferrous sulfate solution.
[0033] In some specific embodiments, the crystallization cylinder 200 is made of a heat-conducting material; the temperature regulating mechanism 500 includes a first heat-conducting component 510, a second heat-conducting component 520 and a compressor 550; the first heat-conducting component 510 module is arranged around the outer periphery of the crystallization cylinder 200; a first heat-conducting medium flow channel 513 is formed in the first heat-conducting component 510; a first inlet 511 and a first outlet 512 are formed on the first heat-conducting component 510; the first inlet 511 and the first outlet 512 are both connected to the first heat-conducting medium flow channel 513; The second heat-conducting component 520 is connected to the crystallizing cylinder 200, and the second heat-conducting component 520 is spaced apart from the crystallizing cylinder 200. A second heat-conducting medium flow channel 523 is formed in the second heat-conducting component 520. The second heat-conducting component 520 is formed with a second inlet 521 and a second outlet 522 spaced apart. The second inlet 521 and the second outlet 522 are both connected to the second heat-conducting medium flow channel 523, and the second outlet 522 is connected to the first inlet 511 through the first pipeline 530. The first pipeline 530 is connected to the first inlet 511. 0 is provided with a first flow regulating assembly 540 for controlling its flow rate, and a third inlet 551 and a third outlet 552 are formed on the compressor 550, which are spaced apart. The third inlet 551 is connected to the second outlet 522 through the second pipeline 51, and the third outlet 552 is connected to the first inlet 511 through the third pipeline 52. The position of the second pipeline 51 near the third inlet 551 and the position of the third pipeline 52 near the third outlet 552 are connected to each other through the first branch 560 and the second branch 570 arranged at intervals, and the third inlet 551 is connected to the second outlet 522 through the second pipeline 51. A control valve 580 is respectively installed on one branch 560, the second branch 570, the position of the second pipeline 51 near the third inlet 551, and the position of the third pipeline 52 near the third outlet 552; the compressor 550 can turn the first heat-conducting component 510 into a condenser to cool the crystallization cylinder 200 when the first branch 560 and the second branch 570 are closed, or the compressor 550 can turn the first heat-conducting component 510 into an evaporator to heat the crystallization cylinder 200 when the first branch 560 and the second branch 570 are opened.
[0034] In this embodiment, by providing a first heat-conducting component 510, a second heat-conducting component 520, and a compressor 550, when in use, the first heat-conducting component 510 is arranged around the outer periphery of the crystallizing cylinder 200, so that the first heat-conducting component 510 can become a condenser and cool the crystallizing cylinder 200 when the first branch 560 and the second branch 570 are closed, or when the first branch 560 is connected to the second branch 570 and the second pipe 51 is disconnected from the third inlet 551, and the third pipe 52 is disconnected from the third outlet 552, so that the first heat-conducting component 510 becomes The evaporator heats the crystallization cylinder 200, thereby not only enabling the present invention to realize the function of regulating the temperature of the crystallization cylinder 200, but also, by utilizing the provided first branch 560, the second branch 570 and the various control valves 580, enabling the first heat-conducting component 510 and the second heat-conducting component 520 to be functionally interchangeable during specific use, thereby enabling the present invention to realize both the functions of heating and cooling the crystallization cylinder 200 using a single set of equipment, thereby ensuring the compactness of the structure and reducing manufacturing costs.
[0035] It should be particularly and clearly stated that, in the exemplary embodiment, the specific working process of the temperature control mechanism 500 composed of the first heat-conducting component 510, the second heat-conducting component 520 and the compressor 550 is as follows: First, when the crystallization cylinder 200 needs to be heated, that is, the first heat-conducting component 510 is used as an evaporator, at this time, the control valve 580 at the connection position between the second pipeline 51 and the third inlet 551 should be closed, so that the third inlet 551 is connected to the first heat-conducting component 510 through the second branch 570, and the control valve 580 at the connection position between the third outlet 552 and the third pipeline 52 is also closed, so that the third outlet 552 is connected to the second heat-conducting component 520 through the first branch 560, and at the same time, the flow channel 543 of the first pipeline 530 is enlarged through the first flow regulating component 540, and then the external heat absorbed by the second heat-conducting component 520 is transferred to the crystallization cylinder 200 through the first heat-conducting component 510, thereby realizing the function of heating the crystallization cylinder 200.
[0036] Secondly, when it is necessary to cool the crystallization cylinder 200 and use the first heat-conducting component 510 as a condenser, the control valve 580 on the first branch 560 and the second branch 570 should be closed, and the second pipeline 51 should be connected to the third inlet 551, and the third pipeline 52 should be connected to the third outlet 552. At the same time, the flow channel 543 of the first pipeline 530 is reduced through the first flow regulating component 540, so that the heat of the crystallization cylinder 200 absorbed by the first heat-conducting component 510 can be dissipated to the external environment through the second heat-conducting component 520, thereby realizing the function of cooling the crystallization cylinder 200.
[0037] It should be emphasized that in this embodiment, the first heat-conducting component 510 and the second heat-conducting component 520 are both devices or apparatuses in the prior art that can achieve heat absorption and heat dissipation functions. They are only applied in this embodiment, and their own structures are not improved or designed. Therefore, they will not be described one by one here. However, it can be illustrated that the first heat-conducting component 510 and the second heat-conducting component 520 can both be condensers in the prior art that can achieve heat conduction and heat dissipation functions.
[0038] In some optional embodiments, the first flow regulating component 540 includes: A connecting pipe 541 is formed on the second pipeline 51 and has a hole 545 formed on the connecting pipe 541; An aperture adjustment member 542 is located within the connecting tube 541 and is arranged along the extending direction of the connecting tube. Two ends of the aperture adjustment member 542 are sealedly connected to two ends of the connecting tube 541 to separate a flow channel 543 and an adjustment cavity 544 surrounding the flow channel 543 within the connecting tube 541. The hole 545 is connected to the adjustment cavity 544; and The first driving member 546 leaks out of the connecting tube 541, and at least a portion of the first driving member 546 extends into the adjusting chamber 544 and covers the outer periphery of the aperture adjusting member 542. The first driving member 546 can drive the aperture adjusting member 542 to contract or expand to correspondingly reduce or increase the flow channel 543.
[0039] In this embodiment, by providing a connecting tube 541, an aperture adjustment member 542 and a first driving member 546, when in use, the aperture adjustment member 542 is driven by the provided first driving member 546 to adjust the size of the flow channel 543, so that the present invention can adjust and control the flow rate of the heat-conducting medium between the first heat-conducting component 510 and the second heat-conducting component 520 when in use, thereby enabling the first heat-conducting component 510 and the second heat-conducting component 520 to interchange functions.
[0040] It should be noted that, in this embodiment, the aperture adjustment member 542 is a membrane structure made of elastic material or memory material. In this embodiment, the aperture adjustment member 542 is preferably a membrane structure made of elastic material.
[0041] It should be clearly emphasized that the first driving member 546 illustrated in the present embodiment includes a handle 546a, a connecting rod 546b, a connecting ring 546c and an adjusting hoop 546d. The handle 546a is arranged outside the connecting tube 541, one end of the connecting rod 546b is connected to the handle 546a, and the other end is provided with an external thread. The connecting rod 546b is arranged in the adjusting cavity 544, and the adjusting hoop 546d is located in the adjusting cavity 544 and is arranged around the outer periphery of the aperture adjusting member 542. At the same time, one end of the adjusting hoop 546d is connected to the connecting ring 546c, and the other end passes through the connecting ring 546c. After the end of the connecting rod 546b with an external thread passes through the hole 545, it cooperates with the internal thread provided on the connecting ring 546c to be able to adjust the size of the adjusting hoop 546d, thereby realizing the function of adjusting the size of the flow channel 543 in the aperture adjusting member 542.
[0042] In some preferred embodiments, a first three-way connector 571 is provided on the third inlet 551, a second three-way connector 572 is provided on the third outlet 552, and both outlets of the first three-way connector 571 and the second three-way connector 572 are each provided with a control valve 580. In this embodiment, the provision of the first three-way connector 571 and the second three-way connector 572 makes the overall structure of the present invention more reasonable, and enables independent control of the second pipeline 51, the third pipeline 52, the first branch 560, and the second branch 570.
[0043] In some preferred embodiments, the control valve 580 is made of a one-way valve, the two one-way valves on the first three-way connector 571 both flow in a direction away from the third inlet 551, and the two one-way valves on the second three-way connector 572 are both set in a direction flowing into the third outlet 552.
[0044] In this embodiment, by setting the control valve 580 as a one-way valve, the present invention can ensure that the heat transfer medium in the corresponding mode can only flow in one direction when in use.
[0045] In some preferred embodiments, the crystallization cylinder 200 includes: The barrel 210 is sealed and connected to the discharge port 120. The first heat-conducting component 510 is disposed around the outer periphery of the barrel 210. The barrel 210 is made of a heat-conducting material. The bottom of the barrel 210 forms a discharge port 220. A third three-way joint 230 is installed on the discharge port 220. One end of the third three-way joint 230 is connected to the external storage tank 400 through a discharge pipe. The other end of the third three-way joint 230 is used to discharge ferrous sulfate monohydrate crystals; and The crystal attachment 240 is disposed in the barrel 210 . A heat exchange channel 250 is formed in the crystal attachment 240 . At least a portion of the heat-conducting component can extend into the heat exchange channel 250 to exchange heat with the barrel 210 through the heat exchange channel 250 .
[0046] In this embodiment, by providing the barrel 210 and the crystal attachment member 240 , the present invention can attach the crystal through the provided crystal attachment member 240 during specific use, thereby accelerating the formation of crystal nuclei and crystal precipitation.
[0047] In some other specific embodiments, there are multiple heat exchange channels 250 , and the multiple heat exchange channels 250 are spaced and staggeredly distributed in the cylinder 210 .
[0048] In this embodiment, by providing a plurality of heat exchange channels 250, the present invention can improve the heat exchange efficiency with the cylinder 210 during specific implementation, thereby improving the precipitation and recovery efficiency of ferrous sulfate monohydrate crystals.
[0049] In some optional embodiments, an ultrasonic vibrator 260 is also installed in each heat exchange channel 250. The ultrasonic vibrator 260 can ultrasonically vibrate the cylinder 210 through the side wall of the heat exchange channel 250 when the ferrous sulfate solution is emptied, so as to cooperate with the temperature adjustment mechanism 500 to make the crystallized ferrous sulfate monohydrate crystals fall off from the inner wall of the cylinder 210.
[0050] In this embodiment, by providing an ultrasonic vibrator 260, the present invention can utilize the provided ultrasonic vibrator 260 in conjunction with the first heat-conducting component 510 to jointly destroy the van der Waals force or electrostatic force generated between the ferrous sulfate monohydrate crystals and the crystal attachment 240 during specific use, thereby accelerating the shedding efficiency of the ferrous sulfate monohydrate crystals.
[0051] It should be particularly and clearly stated that the ultrasonic vibrator 260 illustrated in this embodiment is an ultrasonic vibration device that has been maturely used in the prior art. In this embodiment, it is only applied and its specific structure is not improved or designed. Therefore, it will not be described in detail here.
[0052] In some optional embodiments, a liquid concentration detection sensor 270 is also installed in the cylinder 210.
[0053] In this embodiment, by providing a liquid concentration detection sensor 270, the present invention can instantly detect the concentration of the ferrous sulfate solution in the crystallization cylinder 200 during specific use, and then can judge the precipitation effect of ferrous sulfate monohydrate crystals, providing a guarantee for whether to stop the precipitation operation of ferrous sulfate monohydrate crystals.
[0054] It should be particularly and clearly stated that in this embodiment, the exemplified liquid concentration detection sensor 270 is a device or apparatus in the prior art that can realize the concentration detection function. It is only applied in this embodiment and does not involve the improvement or design of its own structure, so it will not be described one by one here.
[0055] Based on the same technical concept, in a second aspect, the present invention further proposes a ferrous sulfate monohydrate recovery and utilization process, applying the ferrous sulfate monohydrate recovery and utilization device described in the first aspect, the ferrous sulfate monohydrate recovery and utilization device comprising the following steps: S100, controlling the temperature regulating mechanism to adjust the current temperature in the crystallization cylinder to meet a preset temperature condition in an oxygen-free environment; S200, continuing to control the temperature regulating mechanism to perform temperature regulation on the crystallization cylinder according to the current operation instruction; wherein the current operation instruction includes a crystal precipitation instruction, a cleaning instruction for cleaning the crystallization cylinder, and a crystal discharge instruction; S300. When the natural operation instruction is a crystal discharge instruction, the temperature regulating mechanism is controlled to increase the temperature of the crystallization cylinder so that the ferrous sulfate monohydrate crystals attached to the crystallization cylinder fall off and are discharged for recovery.
[0056] The ferrous sulfate monohydrate recovery and utilization process that the embodiment of the present application provides can solve the problem that crystals are easily adhered to the equipment during the prior art crystallization process, resulting in hardening and being difficult to fall off, which not only affects the maintenance of the equipment, but also reduces the technical problem of the rate of recovery of the product. Compared with the prior art, the beneficial effect of the ferrous sulfate monohydrate recovery and utilization process that the embodiment of the present application provides is identical to the beneficial effect of the ferrous sulfate monohydrate recovery and utilization device that the above-described embodiment provides, and other technical features in the ferrous sulfate monohydrate recovery and utilization process are identical to the features disclosed in the device of the above-described embodiment examples, and will not be repeated here.
[0057] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.
Claims
1. A ferrous sulfate monohydrate recovery and utilization device, characterized in that: include: A material storage tank, wherein a material storage chamber is formed in the material storage tank, and a discharge port and a feed port both connected to the material storage chamber are formed on the side wall of the material storage tank, and the discharge port and the feed port are spaced apart; A crystallization cylinder, wherein the crystallization cylinder is in sealed communication with the discharge port, and the crystallization cylinder is rotatably matched with the storage tank, so that the saturated ferrous sulfate solution stored in the storage chamber can flow into the crystallization cylinder through the discharge port and ferrous sulfate crystals are precipitated in the crystallization cylinder; A driving mechanism, wherein the driving mechanism is installed on the crystallization cylinder, and the driving mechanism connects the crystallization cylinder with an external storage tank through a pipeline, so that the ferrous sulfate solution after the crystallization operation in the crystallization cylinder can be discharged into the external storage tank, or the driving mechanism can draw the ferrous sulfate solution stored in the external storage tank into the crystallization cylinder and clean the crystallization cylinder; as well as, A temperature regulating mechanism is installed on the outer periphery of the crystallization cylinder, and the temperature regulating mechanism can heat or cool the crystallization cylinder so that the temperature of the crystallization cylinder can change within a preset temperature range, and correspondingly, when the ferrous sulfate solution is emptied, the crystallized ferrous sulfate monohydrate crystals fall off from the inner wall of the crystallization cylinder, or the ferrous sulfate solution sent into the crystallization cylinder through the driving mechanism cleans the crystallization cylinder.
2. The ferrous sulfate monohydrate recovery and utilization device according to claim 1, characterized in that: The crystallization cylinder is made of heat-conducting material; The temperature regulating mechanism comprises: A first heat-conducting component, wherein the first heat-conducting component module is disposed around the outer periphery of the crystallizing cylinder, a first heat-conducting medium flow channel is formed in the first heat-conducting component, and a first inlet and a first outlet are formed on the first heat-conducting component and are spaced apart from each other, and the first inlet and the first outlet are both connected to the first heat-conducting medium flow channel; a second heat-conducting component, wherein the second heat-conducting component is installed outside the crystallization cylinder, and the second heat-conducting component and the crystallization cylinder are spaced apart, a second heat-conducting medium flow channel is formed in the second heat-conducting component, and a second inlet and a second outlet are spaced apart and formed on the second heat-conducting component, the second inlet and the second outlet are both connected to the second heat-conducting medium flow channel, and the second outlet is connected to the first inlet through a first pipeline, and a first flow regulating component for controlling its flow is provided on the first pipeline; and A compressor, wherein a third inlet and a third outlet are formed on the compressor and are spaced apart, the third inlet is connected to the second outlet through a second pipeline, the third outlet is connected to the first inlet through a third pipeline, a position of the second pipeline close to the third inlet and a position of the third pipeline close to the third outlet are connected to each other through the first branch and the second branch that are spaced apart, and a control valve is installed at the first branch, the second branch, the position of the second pipeline close to the third inlet and the position of the third pipeline close to the third outlet respectively; The compressor can turn the first heat-conducting component into a condenser to cool the crystallization cylinder when the first branch and the second branch are closed, or the compressor can turn the first heat-conducting component into an evaporator to heat the crystallization cylinder when the first branch and the second branch are opened.
3. The ferrous sulfate monohydrate recycling device as claimed in claim 2, characterized in that: The first flow regulating component comprises: A connecting pipe, the connecting pipe is formed on the second pipeline, and a hole is formed on the connecting pipe; An aperture adjustment member, the aperture adjustment member is located in the connecting tube, the aperture adjustment member is arranged along the extension direction of the connecting tube, two ends of the aperture adjustment member are respectively sealed and connected with two ends of the connecting tube to separate a flow channel and an adjustment cavity surrounding the flow channel in the connecting tube, and the hole is connected with the adjustment cavity; and The first driving member is exposed outside the connecting tube, and at least a part of the first driving member extends into the adjusting cavity and covers the outer periphery of the aperture adjusting member, and the first driving member can drive the aperture adjusting member to contract or expand to correspondingly reduce or increase the flow channel.
4. The ferrous sulfate monohydrate recovery and utilization device according to claim 3, characterized in that: The aperture adjusting member is a membrane structure made of elastic material or memory material.
5. The ferrous sulfate monohydrate recovery and utilization device according to claim 4, characterized in that: The third inlet is provided with a first three-way joint, the third outlet is provided with a second three-way joint, and both the two discharge outlets of the first three-way joint and the two discharge outlets of the second three-way joint are provided with a control valve.
6. The ferrous sulfate monohydrate recovery and utilization device according to claim 5, characterized in that: The control valve is made of a one-way valve, the two one-way valves on the first three-way connector both flow in a direction away from the third inlet, and the two one-way valves on the second three-way connector are both arranged in a direction flowing into the third outlet.
7. The ferrous sulfate monohydrate recovery and utilization device according to any one of claims 2 to 6, characterized in that: The crystallization cylinder comprises: a cylinder, the cylinder is sealed and connected with the discharge port, the first heat-conducting component is arranged around the outer periphery of the cylinder, and the cylinder is made of a heat-conducting material, a discharge port is formed at the bottom of the cylinder, a third three-way joint is installed on the discharge port, one end of the third three-way joint is connected with the external storage tank through a discharge pipe, and the other end of the third three-way joint is used to discharge the ferrous sulfate monohydrate crystals; and, A crystal attachment is disposed in the barrel, a heat exchange channel is formed in the crystal attachment, and at least a portion of the heat-conducting component can extend into the heat exchange channel to exchange heat with the barrel through the heat exchange channel.
8. The ferrous sulfate monohydrate recovery and utilization device according to claim 7, characterized in that: There are a plurality of heat exchange channels, and the plurality of heat exchange channels are distributed in the cylinder at intervals and in a staggered manner.
9. The ferrous sulfate monohydrate recovery and utilization device according to claim 8, characterized in that: An ultrasonic vibrator is also installed in each of the heat exchange channels, and the ultrasonic vibrator can ultrasonically vibrate the cylinder through the side wall of the heat exchange channel when the ferrous sulfate solution is emptied, so as to cooperate with the temperature adjustment mechanism to make the crystallized ferrous sulfate monohydrate crystals fall off from the inner wall of the cylinder; and / or, A liquid concentration detection sensor is also installed in the cylinder.
10. A process for recycling ferrous sulfate monohydrate, characterized in that: The ferrous sulfate monohydrate recovery and utilization device according to any one of claims 1 to 9 is used, and the ferrous sulfate monohydrate recovery and utilization device comprises the following steps: Controlling the temperature regulating mechanism to adjust the current temperature in the crystallization cylinder to meet a preset temperature condition in an oxygen-free environment; According to the current operation instruction, continue to control the temperature adjustment mechanism to perform temperature adjustment operation on the crystallization cylinder; wherein the current operation instruction includes a crystal precipitation instruction, a cleaning instruction for cleaning the crystallization cylinder, and a crystal discharge instruction; When the natural operation instruction is a crystal discharge instruction, the temperature regulating mechanism is controlled to increase the temperature of the crystallization cylinder so that the ferrous sulfate monohydrate crystals attached to the crystallization cylinder fall off and are discharged for recovery.