A crystalline salt recovery device for high-salinity wastewater

Abstract

The utility model provides a kind of crystalline salt recovery device of high-salinity wastewater, comprising: discharge pipe, locking mechanism and plugging plate;Discharge pipe has mutually communicating discharge passage, first discharge passage and second discharge passage, the number of plugging plate is two, two plugging plates are respectively located in first discharge passage and second discharge passage, two plugging plates are respectively used to block the inlet of first discharge passage and the inlet of second discharge passage, locking mechanism is set on discharge pipe, each plugging plate has corresponding locking mechanism, locking mechanism is used to limit plugging plate, so that plugging plate can be locked and rotatably connected to discharge pipe.

Description

Technical Field

[0001] This utility model belongs to the technical field of crystallization treatment equipment, and in particular relates to a crystallization salt recovery device for high-salt wastewater. Background Technology

[0002] In the production and wastewater treatment processes of industries such as chemical engineering, pharmaceuticals, and dyeing, large quantities of complex, high-salinity wastewater are often generated. Direct discharge of this wastewater will cause serious harm to water bodies, soil, and the ecological environment. Therefore, the resource recovery and harmless treatment of high-salinity wastewater has become an important issue in the environmental protection field. Currently, evaporation crystallization technology is one of the key processes for achieving zero discharge and salt recovery of high-salinity wastewater. High-salinity wastewater treatment evaporation crystallizers (such as forced circulation crystallizers and multi-effect evaporation crystallizers) use this technology to concentrate and ultimately crystallize the dissolved salts in the wastewater, forming solid crystalline salts.

[0003] Existing high-salinity wastewater treatment evaporation crystallizers typically discharge large quantities of crystalline salt through a centralized outlet after the crystallization process is complete. This crystalline salt needs to be transported in a unified manner for subsequent storage, off-site transport, or resource utilization.

[0004] However, in actual operation, the total amount of crystallized salt discharged by the crystallization equipment in a single operation often exceeds the maximum capacity of a single receiving device. This results in the evaporator crystallizer continuing to discharge salt even after the first receiving device is full, causing the remaining crystallized salt to be unable to be received in a timely and effective manner. This leads to leakage and spillage of the crystallized salt, which not only pollutes the working environment but also poses safety risks. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a crystallization salt recovery device for high-salt wastewater, so as to realize the continuous, efficient and leak-free discharge of crystallization salt under the condition that the evaporator crystallizer does not stop, thereby ensuring the long-term stable operation of the high-salt wastewater treatment system, so as to at least partially solve the problems in the related technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A device for recovering crystallized salt from high-salinity wastewater includes: a discharge pipe, a locking mechanism, and a sealing plate;

[0008] The discharge pipe has an interconnected inlet passage, a first discharge passage, and a second discharge passage. There are two sealing plates, which are located in the first discharge passage and the second discharge passage, respectively. The two sealing plates are used to block the inlet of the first discharge passage and the inlet of the second discharge passage, respectively. A locking mechanism is provided on the discharge pipe. Each sealing plate has a corresponding locking mechanism, which is used to limit the sealing plate so that the sealing plate is lockably rotatably connected to the discharge pipe.

[0009] Furthermore, the sealing plate is fixedly connected to a rotating rod, and the discharge pipe is provided with a bearing seat corresponding to the rotating rod.

[0010] Furthermore, the locking mechanism includes a locking assembly, a guide member, and a guide plate;

[0011] The guide member is fixed to the outer wall of the discharge pipe. The guide member is provided with a guide groove. One end of the guide plate is fixed to the rotating rod, and the other end is slidably connected in the guide groove. The locking component is disposed on the guide member and is used to limit the relative position of the guide plate in the guide groove.

[0012] Furthermore, the sealing plate has a sealing state and a discharging state;

[0013] Each of the guide members is provided with two locking components, one for the sealing plate in the blocking state and the other for the sealing plate in the discharging state.

[0014] Furthermore, the locking assembly includes a locking cylinder, a locking spring, a limiting plate, and a locking pin;

[0015] The locking cylinder has a locking cavity, the locking pin is fixed to the limiting plate, one end of the locking pin extends into the guide groove through a through hole provided on the guide member, and the other end of the locking pin extends out of the locking cavity through the opening of the locking cavity. The guide plate is provided with a locking hole; the locking spring is sleeved on the locking pin and one end abuts against the limiting plate, and the other end abuts against the inner wall of the locking cavity.

[0016] Furthermore, a locking slot is provided on the bottom surface of the guide groove.

[0017] Furthermore, the guide plate is provided with a handle.

[0018] Furthermore, both the first discharge passage and the second discharge passage are fixedly connected with overlapping partitions corresponding to the sealing plate, and the overlapping partitions have discharge openings at the ends facing away from the discharge passage.

[0019] Furthermore, the overlapping partition is provided with a mounting groove for installing a leak-proof gasket.

[0020] Furthermore, a connecting flange is provided at one end of the discharge pipe near the discharge passage.

[0021] The above technical solution, through the coordinated operation of the discharge pipe, locking mechanism, and sealing plate, solves the problem of continuous recovery of crystallized salt in high-salinity wastewater. The discharge pipe has interconnected inlet, first outlet, and second outlet channels, providing a basic path for the flow of crystallized salt. Independently controllable sealing plates are installed in both the first and second outlet channels. Each sealing plate is specifically designed to open and close the inlet of its respective outlet channel, allowing operators to flexibly guide the crystallized salt to either the first or second outlet channel by controlling the different opening and closing states of the two sealing plates. Furthermore, the locking mechanism on the discharge pipe ensures that each sealing plate remains stably locked in the open or closed position, guaranteeing good stability even under the impact of flowing crystallized salt and preventing leakage due to accidental loosening. When the receiving device connected to the first discharge passage is fully loaded, the empty receiving device corresponding to the second discharge passage can be pre-positioned. Then, by switching the state of the sealing plate, the crystallized salt can be guided to the second discharge passage without leakage, thereby achieving continuous discharge of the evaporator crystallizer without stopping. Based on this, the receiving device fully loaded with crystallized salt can be transferred, and the empty receiving device can be prepared for the next switch. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the crystallized salt recovery device provided in an exemplary embodiment of this disclosure;

[0024] Figure 2 This is a schematic diagram of the locking mechanism provided in an exemplary embodiment of this disclosure;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of the locking component provided in an exemplary embodiment of this disclosure;

[0026] Figure 4 This is a schematic diagram of the structure of the locking assembly and guide provided in an exemplary embodiment of this disclosure;

[0027] Figure 5 This is a schematic diagram of the structure of the sealing plate provided in an exemplary embodiment of this disclosure;

[0028] Figure 6 This is a schematic diagram of the internal structure of the discharge pipe provided in an exemplary embodiment of this disclosure;

[0029] Figure 7 This is a schematic diagram of the structure of the leak-proof gasket provided in an exemplary embodiment of this disclosure.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Discharge pipe; 101. Discharge passage; 102. First discharge passage; 103. Second discharge passage; 104. Connecting flange; 2. Sealing plate; 3. Rotating rod; 4. Bearing seat; 5. Locking assembly; 501. Locking cylinder; 5011. Locking cavity; 502. Locking spring; 503. Limiting plate; 504. Locking pin; 6. Guide component; 601. Guide groove; 6011. Locking slot; 7. Guide plate; 8. Handle; 9. Overlapping partition; 901. Discharge opening; 902. Mounting groove; 10. Leak-proof gasket. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] In the specific embodiments provided in this disclosure, a device for recovering crystallized salt from high-salinity wastewater is provided, with reference to... Figures 1 to 7 As shown, the crystallized salt recovery device for high-salt wastewater includes: a discharge pipe 1, a locking mechanism, and a sealing plate 2. The discharge pipe 1 has an inlet passage 101, a first discharge passage 102, and a second discharge passage 103 that are interconnected. There are two sealing plates 2, which are located in the first discharge passage 102 and the second discharge passage 103, respectively. The two sealing plates 2 are used to block the inlet of the first discharge passage 102 and the inlet of the second discharge passage 103, respectively. The locking mechanism is provided on the discharge pipe 1. Each sealing plate 2 has a corresponding locking mechanism, which is used to limit the sealing plate 2 so that the sealing plate 2 can be locked and rotatably connected to the discharge pipe 1.

[0037] Through the above technical solution, the problem of continuous recovery of crystallized salt in high-salt wastewater is solved by the coordinated operation of the discharge pipe 1, the locking mechanism, and the sealing plate 2. The discharge pipe 1 has an interconnected inlet passage 101, a first discharge passage 102, and a second discharge passage 103. The inlet passage 101, the first discharge passage 102, and the second discharge passage 103 provide the basic path for the flow of crystallized salt. The first discharge passage 102 and the second discharge passage 103 are respectively equipped with independently controllable sealing plates 2. Each sealing plate 2 is specifically used to open and close the inlet of its respective discharge passage, so that the operator can flexibly guide the crystallized salt to the first discharge passage 102 or the second discharge passage 103 by controlling the different opening and closing states of the two sealing plates 2. That is, through the locking mechanism set on the discharge pipe 1, each sealing plate 2 can be stably locked in the open or closed position, ensuring that the sealing plate 2 still has good stability under the impact of the crystallized salt flow and preventing crystallized salt leakage due to accidental loosening. When the receiving device connected to the first discharge passage 102 is fully loaded, the empty receiving device corresponding to the second discharge passage 103 can be pre-positioned. Then, by switching the state of the sealing plate 2, the crystallized salt can be guided to the second discharge passage 103 without leakage, thereby achieving continuous discharge of the evaporator crystallizer without stopping. Based on this, the receiving device fully loaded with crystallized salt can be transferred, and the empty receiving device can be prepared for the next switch.

[0038] In some implementations, reference Figure 1 and Figure 2As shown, the sealing plate 2 is rotatably connected to the discharge pipe 1 through the rotating rod 3. Specifically, the sealing plate 2 is fixedly connected to the rotating rod 3, and the discharge pipe 1 is provided with bearing seats 4 corresponding to the rotating rod 3. Each sealing plate 2 has two bearing seats 4, which are used to connect the two ends of the rotating rod 3 respectively, so that the sealing plate 2 can be stably rotatably connected to the corresponding first discharge passage 102 or second discharge passage 103.

[0039] In some implementations, reference Figures 2 to 4 As shown, the locking mechanism includes a locking assembly 5, a guide member 6, and a guide plate 7. The guide member 6 is fixedly connected to the outer wall of the discharge pipe 1 and has a guide groove 601. One end of the guide plate 7 is fixedly connected to the rotating rod 3, and the other end is slidably connected in the guide groove 601. The locking assembly 5 is disposed on the guide member 6 and is used to limit the relative position of the guide plate 7 in the guide groove 601.

[0040] The blocking plate 2 has two key working states: blocking state and discharge state. When it is in the blocking state, the blocking plate 2 rotates to a position that completely closes the inlet of the discharge passage where it is located. When it is in the discharge state, the blocking plate 2 rotates to a position that completely opens the inlet of the discharge passage where it is located.

[0041] To reliably lock the sealing plate 2 in either the blocking or discharging state, each guide member 6 is equipped with two locking components 5. When the operator rotates the lever 3 to switch the state of the sealing plate 2, the guide plate 7 rotates synchronously with the lever 3, and its end extending into the guide groove 601 slides within the guide groove 601. When the sealing plate 2 rotates to the blocking state, the guide plate 7 slides to a specific position within the guide groove 601. At this time, the first locking component 5 locks the guide plate 7 in that position, ensuring that the sealing plate 2 remains securely closed. Similarly, when the sealing plate 2 needs to be switched to the discharging state, rotating the lever 3 causes the guide plate 7 to slide to another specific position within the guide groove 601, and the second locking component 5 locks the guide plate 7, ensuring that the sealing plate 2 remains stably in the fully open position.

[0042] For example, the locking assembly 5 can be a screw, wherein the guide member 6 is provided with a through hole communicating with the guide groove 601, and the guide plate 7 is provided with a screw hole for threaded connection of the screw, the screw extends through the through hole into the guide groove 601 and is connected in the screw hole.

[0043] In some implementations, reference Figures 3 to 5As shown, the locking assembly 5 includes a locking cylinder 501, a locking spring 502, a limiting plate 503, and a locking pin 504; the locking cylinder 501 has a locking cavity 5011, the locking pin 504 is fixedly connected to the limiting plate 503, one end of the locking pin 504 extends into the guide groove 601 through a through hole provided on the guide member 6, and the other end of the locking pin 504 extends out of the locking cavity 5011 through the opening of the locking cavity 5011, and the guide plate 7 is provided with a locking hole; the locking spring 502 is sleeved on the lock The locking pin 504 has one end abutting against the limiting plate 503 and the other end abutting against the inner wall of the locking cavity 5011. When the guide plate 7 slides in the guide groove 601 and its locking hole moves to align with the working end of the locking pin 504, the locking pin 504, under the elastic force of the locking spring 502, passes through the locking hole and through the guide plate 7, thereby firmly locking the guide plate 7 in the current position, so that the sealing plate 2 can be stably in the sealing or discharging state. When unlocking is required, the operator can pull the locking pin 504 outward (overcoming the spring force) to remove its working end from the locking hole, thus releasing the limitation on the guide plate 7.

[0044] In some implementations, reference Figure 3 and Figure 4 As shown, in order to further improve the stability of the guide plate 7, a locking slot 6011 is provided on the bottom surface of the guide groove 601. That is, when the locking pin 504 is displaced under the elastic force of the locking spring 502, its front end will pass through the through hole on the guide member 6, insert into the locking hole on the guide plate 7, and finally be embedded in the locking slot 6011 on the bottom surface of the guide groove 601.

[0045] In some implementations, reference Figure 2 and Figure 3 As shown, the guide plate 7 is equipped with a handle 8, which allows the operator to rotate the sealing plate 2 more easily.

[0046] In some implementations, reference Figure 6 As shown, to further optimize sealing performance and prevent crystallized salt retention, overlapping partitions 9 that cooperate with the corresponding sealing plates 2 are fixedly connected to the inner walls of the first discharge passage 102 and the second discharge passage 103. The end of the overlapping partition 9 facing the discharge passage 101 serves as the sealing overlapping surface. When the sealing plate 2 is rotated to the closed position, its edge can tightly fit against this overlapping surface, forming a reliable seal, thereby significantly improving the sealing effect of the sealing plate 2. At the same time, the end of the overlapping partition 9 away from the discharge passage 101 (i.e., its downstream end) is not completely closed, but is provided with a discharge opening 901. That is, in actual operation, if the discharge opening 901 is not provided, some crystallized salt will accumulate between the two overlapping partitions 9. With the discharge opening 901, the accumulation of crystallized salt between the two overlapping partitions 9 can be prevented.

[0047] Meanwhile, in some implementation methods, reference Figure 6 and Figure 7 As shown, in order to further improve the reliability of the sealing connection, the sealing lap surface of the lap partition 9 is also provided with an installation groove 902. At the same time, the shape of the installation groove 902 is adapted to the contour of the lap partition 9, and a leak-proof gasket 10 is embedded in it.

[0048] In some implementations, reference Figure 1 and Figure 6 As shown, the end of the discharge pipe 1 near the discharge passage 101 is provided with a connecting flange 104, that is, the connecting flange 104 can be used to achieve quick and reliable centering connection and fastening with the discharge port flange of the upstream high-salt wastewater evaporator crystallizer.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for recovering crystalline salt from high-salinity wastewater, characterized in that, include: Discharge pipe (1), locking mechanism and sealing plate (2); The discharge pipe (1) has an inlet passage (101), a first discharge passage (102), and a second discharge passage (103) that are interconnected. There are two sealing plates (2), which are located in the first discharge passage (102) and the second discharge passage (103), respectively. The two sealing plates (2) are used to block the inlet of the first discharge passage (102) and the inlet of the second discharge passage (103), respectively. The locking mechanism is provided on the discharge pipe (1). Each sealing plate (2) has a corresponding locking mechanism. The locking mechanism is used to limit the sealing plate (2) so that the sealing plate (2) is lockably rotatably connected to the discharge pipe (1).

2. The crystallized salt recovery device for high-salinity wastewater according to claim 1, characterized in that: The sealing plate (2) is fixedly connected to a rotating rod (3), and the discharge pipe (1) is provided with a bearing seat (4) corresponding to the rotating rod (3).

3. The crystallized salt recovery device for high-salinity wastewater according to claim 2, characterized in that: The locking mechanism includes a locking assembly (5), a guide member (6), and a guide plate (7); The guide member (6) is fixed to the outer wall of the discharge pipe (1). The guide member (6) is provided with a guide groove (601). One end of the guide plate (7) is fixed to the rotating rod (3), and the other end is slidably connected in the guide groove (601). The locking component (5) is disposed on the guide member (6) and is used to limit the relative position of the guide plate (7) in the guide groove (601).

4. The crystallized salt recovery device for high-salinity wastewater according to claim 3, characterized in that: The sealing plate (2) has a sealing state and a discharge state; Each of the guide members (6) is provided with two locking components (5), which are respectively used to correspond to the blocking plate (2) when it is in the blocking state and to correspond to the blocking plate (2) when it is in the discharging state.

5. The crystallized salt recovery device for high-salinity wastewater according to claim 4, characterized in that: The locking assembly (5) includes a locking cylinder (501), a locking spring (502), a limiting plate (503), and a locking pin (504); The locking cylinder (501) has a locking cavity (5011), the locking pin (504) is fixed to the limiting plate (503), one end of the locking pin (504) extends into the guide groove (601) through the through hole provided on the guide member (6), and the other end of the locking pin (504) extends out of the locking cavity (5011) through the opening of the locking cavity (5011). The guide plate (7) is provided with a locking hole; the locking spring (502) is sleeved on the locking pin (504) and one end abuts against the limiting plate (503), and the other end abuts against the inner wall of the locking cavity (5011).

6. The crystallized salt recovery device for high-salinity wastewater according to claim 5, characterized in that: The bottom surface of the guide groove (601) is provided with a locking slot (6011).

7. The crystallized salt recovery device for high-salinity wastewater according to claim 3, characterized in that: The guide plate (7) is provided with a handle (8).

8. The crystallized salt recovery device for high-salinity wastewater according to claim 1, characterized in that: Both the first discharge passage (102) and the second discharge passage (103) are fixedly connected with overlapping partitions (9) corresponding to the sealing plate (2), and the overlapping partitions (9) have discharge openings (901) at the end opposite to the discharge passage (101).

9. A device for recovering crystallized salt from high-salinity wastewater according to claim 8, characterized in that: The overlapping partition (9) is provided with a mounting groove (902) for installing a leak-proof gasket (10).

10. A device for recovering crystallized salt from high-salinity wastewater according to claim 1, characterized in that: The discharge pipe (1) is provided with a connecting flange (104) at one end near the discharge passage (101).

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