Medicine dissolving equipment
By designing dissolving equipment with unequal volume dissolving chambers and progressively rotating agitators, the problem of incomplete dissolution of powdered PAM flocculants in low-speed stirring systems has been solved, achieving efficient dissolution of the agent and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, powdered PAM flocculants are difficult to completely dissolve in dissolving systems with low stirring speeds, resulting in reduced flocculation effects, requiring increased dosage, and increasing sludge volume and costs.
Design a drug dissolving device that uses dissolving chambers of unequal volume and progressively decreasing stirrer speeds, combined with anti-crossflow partitions and an automatic water replenishment and drug dosing mechanism, to ensure that the drug gradually and completely dissolves in different chambers.
This achieves efficient dissolution of the reagents, avoids reagent clumping, reduces reagent dosage, and decreases sludge volume and cost.
Smart Images
Figure CN224086571U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a drug dissolving device. Background Technology
[0002] In existing chemical water treatment processes, chemicals need to be added to the wastewater to cause impurities to coagulate and flocculate, thereby achieving the purpose of wastewater purification. The commonly used flocculant PAM (polyacrylamide) is in powder form and needs to be stirred and dissolved to achieve the required concentration before use.
[0003] To ensure complete dissolution, conventional PAM dissolving systems consist of three dissolving zones, each with the same volume and stirring speed, albeit at a low speed. However, in practical applications, because the stirring speed of each dissolving zone is low, the overall dissolution residence time is long. Furthermore, the volumes of the first and second dissolving zones are relatively large compared to the stirring speed. With continuous addition of solid powder, incomplete stirring and agglomeration of the agent occur, making it difficult to achieve complete dissolution and reach the designed dissolution concentration, thus reducing the PAM flocculation effect. Therefore, wastewater treatment projects often increase the dosage to achieve flocculation, but this increases the amount of sludge, leading to higher costs for both the reagent and sludge disposal. Utility Model Content
[0004] To address the technical problems existing in the background art, this utility model proposes a drug dissolving device.
[0005] The present invention provides a drug dissolving device, comprising: a box body, a first partition, a second partition, three stirrers, and three stirring drive mechanisms;
[0006] The first and second partitions are arranged sequentially and at intervals along the length of the box body. The first and second partitions divide the inside of the box body into a first dissolving chamber, a second dissolving chamber, and a third dissolving chamber arranged sequentially along their length. The volume of the first and second dissolving chambers is smaller than the volume of the third dissolving chamber.
[0007] The top of the first partition is provided with a first flow port for connecting the first drug dissolving chamber and the second drug dissolving chamber, and the top of the second partition is provided with a second flow port for connecting the second drug dissolving chamber and the third drug dissolving chamber.
[0008] An inlet is located at the top of the box corresponding to the first dissolving chamber, and a first valve is installed inside the inlet; an outlet is located at the bottom of the box corresponding to the third dissolving chamber, and a second valve is installed inside the outlet.
[0009] Three stirrers are vertically arranged in the first, second, and third drug dissolving chambers, respectively. The top ends of the shafts of the three stirrers extend out of the top wall of their respective drug dissolving chambers and are connected to the three stirring drive mechanisms in a one-to-one correspondence. The stirring drive mechanisms are used to drive the corresponding stirrers to rotate.
[0010] Preferably, the volume of the first dissolving chamber is the same as the volume of the second dissolving chamber.
[0011] Preferably, the volume of the third drug dissolving chamber is 3 to 5 times the volume of the first drug dissolving chamber.
[0012] Preferably, the target rotation speeds of the stirrers in the first, second, and third dissolving chambers decrease progressively.
[0013] Preferably, the target rotational speed of the stirrer in the first dissolving chamber is 2 to 4 times that of the stirrer in the third dissolving chamber, and the target rotational speed of the stirrer in the first dissolving chamber is 1.5 to 2 times that of the stirrer in the second dissolving chamber.
[0014] Preferably, a third partition is provided between the stirrer and the first partition in the first drug dissolving chamber. The third partition divides the first drug dissolving chamber into an independent first stirring zone and a first anti-crossflow zone. The bottom of the third partition is provided with a third flow port for connecting the first stirring zone and the first anti-crossflow zone.
[0015] A fourth partition is provided between the stirrer and the first partition in the second dissolving chamber. The fourth partition divides the second dissolving chamber into an independent second stirring zone and a second anti-crossflow zone. The bottom of the fourth partition is provided with a fourth flow port for connecting the second stirring zone and the second anti-crossflow zone.
[0016] Preferably, the volume of the first anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the first dissolving chamber; the volume of the second anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the second dissolving chamber.
[0017] Preferably, a liquid level sensor is provided in the third dissolving chamber.
[0018] Preferably, it also includes an automatic water replenishment mechanism and an automatic chemical dosing mechanism, which are respectively connected to the inlet to achieve automatic water replenishment and chemical dosing.
[0019] Preferably, the system also includes a controller, a liquid level sensor, a first valve, a second valve, three stirring drive mechanisms, an automatic water replenishment mechanism, and an automatic dosing mechanism, all of which are electrically connected to the controller.
[0020] In this invention, the proposed drug dissolving device no longer adopts a uniform volume design. Instead, it adopts a design that reduces the volume of the first and second drug dissolving chambers and relatively enlarges the third drug dissolving chamber. This design ensures that the powder in the first drug dissolving chamber is in a semi-dissolved state, the powder in the second drug dissolving chamber is fully dissolved, and thus ensures that the drug in the third drug dissolving chamber meets the usage requirements. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the drug dissolving device in one embodiment of the present invention. Detailed Implementation
[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] Reference Figure 1 The present invention proposes a drug dissolving device, comprising: a housing 1, three stirrers 4 and three stirring drive mechanisms 5;
[0024] The box 1 is provided with a first partition 2 and a second partition 3 arranged at intervals along its length. The first partition 2 and the second partition 3 divide the interior of the box 1 into a first drug dissolving chamber 11, a second drug dissolving chamber 12 and a third drug dissolving chamber 13 arranged at intervals along its length. The volume of the first drug dissolving chamber 11 and the second drug dissolving chamber 12 is smaller than the volume of the third drug dissolving chamber 13.
[0025] The top of the first partition 2 is provided with a first flow port for connecting the first drug dissolving chamber 11 and the second drug dissolving chamber 12, and the top of the second partition 3 is provided with a second flow port for connecting the second drug dissolving chamber 12 and the third drug dissolving chamber 13.
[0026] An inlet is provided at the top of the box body 1, corresponding to the first dissolving chamber 11, and a first valve is provided inside the inlet; an outlet is provided at the bottom of the box body 1, corresponding to the third dissolving chamber 13, and a second valve is provided inside the outlet.
[0027] Three stirrers 4 are vertically arranged in the first dissolving chamber 11, the second dissolving chamber 12 and the third dissolving chamber 13 respectively, and the top ends of the shafts of the three stirrers 4 extend out of the top wall of their respective dissolving chambers and are driven and connected to the three stirring drive mechanisms 5 one by one. The stirring drive mechanism 5 is used to drive the corresponding stirrer 4 to rotate.
[0028] Compared to existing drug dissolving equipment with three-stage dissolving zones, this invention no longer adopts a uniform volume design. Instead, it reduces the volume of the first and second dissolving chambers 11 and 12, and relatively enlarges the third dissolving chamber 13. This design ensures that the powder in the first dissolving chamber 11 is in a semi-dissolved state, the powder in the second dissolving chamber 12 is fully dissolved, and thus ensures that the drug in the third dissolving chamber 13 meets the usage requirements.
[0029] Specifically, the three stirring drive mechanisms 5 are respectively installed on the outside of the top walls of the first drug dissolving chamber 11, the second drug dissolving chamber 12 and the third drug dissolving chamber 13.
[0030] In one embodiment, the volume of the first dissolving chamber 11 is smaller than the volume of the second dissolving chamber 12.
[0031] In one embodiment, the volume of the first drug dissolving chamber 11 is greater than the volume of the second drug dissolving chamber 12.
[0032] However, if the volume of the second dissolving chamber 12 is too large, the solubility will be too high, and the molecular structure will be easily broken down; if the volume of the second dissolving chamber 12 is too small, the solubility will be insufficient. To solve this problem, in a further embodiment, the volume of the first dissolving chamber 11 and the volume of the second dissolving chamber 12 are the same.
[0033] In a further embodiment, the volume of the third dissolving chamber 13 is 3 to 5 times the volume of the first dissolving chamber 11, so as to further ensure that the powder in the first dissolving chamber 11 is in a semi-dissolved state and the powder in the second dissolving chamber 12 is completely dissolved, thereby ensuring that the drug in the third dissolving chamber 13 meets the usage requirements.
[0034] In this embodiment, the target rotation speed of the stirrer 4 in the first dissolving chamber 11, the second dissolving chamber 12, and the third dissolving chamber 13 is gradually reduced.
[0035] In this embodiment, by setting the target rotation speed of the stirrer 4 in the first dissolving chamber 11, the second dissolving chamber 12, and the third dissolving chamber 13 to be gradually reduced, it is possible to stir at a high speed when the granules are not melted, stir at a relatively high speed when the granules are partially melted, and stir at a low speed when the granules are completely melted, which can further ensure that the dissolved medicine meets the usage requirements.
[0036] In a further embodiment, the target rotational speed of the stirrer 4 in the first dissolving chamber 11 is 2 to 4 times the target rotational speed of the stirrer 4 in the third dissolving chamber 13, and the target rotational speed of the stirrer 4 in the first dissolving chamber 11 is 1.5 to 2 times the target rotational speed of the stirrer 4 in the second dissolving chamber 12.
[0037] In practice, after water and medicine enter the first dissolving chamber 11, they can quickly enter a semi-dissolved state under the rapid stirring of the stirrer 4 in the first dissolving chamber 11 to avoid clumping. Since the volume of the first dissolving chamber 11 is reduced compared to the prior art, the stirring time can be avoided to prevent the entry of air bubbles during the dissolving process. After entering the second dissolving chamber 12, the medicine continues to dissolve. The target speed of the stirrer 4 in the second dissolving chamber 12 is lower than the target speed of the stirrer 4 in the first dissolving chamber 11, which can continue to prevent the generation of air bubbles and achieve complete dissolution.
[0038] In this embodiment, a third partition 6 is provided between the stirrer 4 and the first partition 2 located in the first drug dissolving chamber 11. The third partition 6 divides the first drug dissolving chamber 11 into an independent first stirring zone and a first anti-crossflow zone. The bottom of the third partition 6 is provided with a third flow port for connecting the first stirring zone and the first anti-crossflow zone.
[0039] A fourth partition 7 is provided between the stirrer 4 located in the second dissolving chamber 12 and the first partition 2. The fourth partition 7 divides the second dissolving chamber 12 into an independent second stirring zone and a second anti-crossflow zone. The bottom of the fourth partition 7 is provided with a fourth flow port for connecting the second stirring zone and the second anti-crossflow zone.
[0040] In this embodiment, the third partition 6 and the fourth partition 7 are arranged between the first dissolving chamber 11 and the second dissolving chamber 12 to form a first anti-crossflow partition zone and a second anti-crossflow partition zone. The first anti-crossflow partition zone, the first flow port and the second anti-crossflow partition zone are connected in sequence to form an anti-crossflow partition layer. This can prevent the dissolved drug in the first dissolving chamber 11 (especially containing undissolved particles) from directly entering the second dissolving chamber 12, thus prolonging the dissolving residence time to ensure sufficient dissolution. At the same time, it avoids the turbulence interference caused by the straight connection at the bottom of the first dissolving chamber 11 and the second dissolving chamber 12, which would affect the stirring effect.
[0041] However, if the volume of the anti-crossflow partition is too small, the dissolution time will not be extended sufficiently; if it is too large, it will increase head loss. To solve this problem, in a further embodiment, the volume of the first anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the first dissolution chamber 11; and the volume of the second anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the second dissolution chamber 12.
[0042] In this embodiment, a liquid level sensor is installed in the third dissolving chamber 13 to obtain the liquid level information of the third dissolving chamber 13, thereby performing corresponding water replenishment and drug replenishment operations.
[0043] In this embodiment, an automatic water replenishment mechanism and an automatic dosing mechanism are also included. The automatic water replenishment mechanism and the automatic dosing mechanism are respectively connected to the inlet to realize automatic water replenishment and dosing.
[0044] In order to realize the automatic water replenishment, drug replenishment and drug dissolution of the drug dissolving equipment, this embodiment also includes a controller, a liquid level sensor, a first valve, a second valve, three stirring drive mechanisms 5, an automatic water replenishment mechanism and an automatic drug dosing mechanism, which are electrically connected to the controller.
[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A drug dissolving device, characterized in that, include: Box body (1), first partition (2), second partition (3), three agitators (4) and three agitator drive mechanisms (5); The first partition (2) and the second partition (3) are arranged sequentially and at intervals along the length of the box (1) inside the box (1). The first partition (2) and the second partition (3) divide the inside of the box (1) into a first dissolving chamber (11), a second dissolving chamber (12) and a third dissolving chamber (13) arranged sequentially along its length. The volume of the first dissolving chamber (11) and the second dissolving chamber (12) is smaller than the volume of the third dissolving chamber (13). The top of the first partition (2) is provided with a first flow port for connecting the first drug dissolving chamber (11) and the second drug dissolving chamber (12), and the top of the second partition (3) is provided with a second flow port for connecting the second drug dissolving chamber (12) and the third drug dissolving chamber (13). An inlet is provided at the top of the box (1) corresponding to the first dissolving chamber (11), and a first valve is provided inside the inlet; an outlet is provided at the bottom of the box (1) corresponding to the third dissolving chamber (13), and a second valve is provided inside the outlet; Three stirrers (4) are vertically arranged in the first drug dissolving chamber (11), the second drug dissolving chamber (12) and the third drug dissolving chamber (13), respectively. The top of the shaft of each of the three stirrers (4) extends out of the top wall of the drug dissolving chamber and is connected to the three stirring drive mechanisms (5) in a corresponding manner. The stirring drive mechanism (5) is used to drive the corresponding stirrer (4) to rotate.
2. The drug dissolving device according to claim 1, characterized in that, The volume of the first drug-dissolving chamber (11) is the same as the volume of the second drug-dissolving chamber (12).
3. The drug dissolving device according to claim 2, characterized in that... The volume of the third drug dissolving chamber (13) is 3 to 5 times that of the first drug dissolving chamber (11).
4. The drug dissolving device according to claim 1, characterized in that, The target rotation speed of the stirrers (4) in the first dissolving chamber (11), the second dissolving chamber (12), and the third dissolving chamber (13) decreases step by step.
5. The drug dissolving device according to claim 4, characterized in that, The target rotation speed of the stirrer (4) in the first dissolving chamber (11) is 2 to 4 times that of the stirrer (4) in the third dissolving chamber (13), and the target rotation speed of the stirrer (4) in the first dissolving chamber (11) is 1.5 to 2 times that of the stirrer (4) in the second dissolving chamber (12).
6. The drug dissolving device according to claim 1, characterized in that, A third partition (6) is provided between the stirrer (4) located in the first drug dissolving chamber (11) and the first partition (2). The third partition (6) divides the first drug dissolving chamber (11) into an independent first stirring zone and a first anti-crossflow zone. The bottom of the third partition (6) is provided with a third flow port for connecting the first stirring zone and the first anti-crossflow zone. A fourth partition (7) is provided between the stirrer (4) located in the second dissolving chamber (12) and the first partition (2). The fourth partition (7) divides the second dissolving chamber (12) into an independent second stirring zone and a second anti-crossflow zone. The bottom of the fourth partition (7) is provided with a fourth flow port for connecting the second stirring zone and the second anti-crossflow zone.
7. The drug dissolving device according to claim 6, characterized in that, The volume of the first anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the first drug dissolving chamber (11); the volume of the second anti-crossflow partition is 1 / 5 to 1 / 4 of the volume of the second drug dissolving chamber (12).
8. The drug dissolving device according to claim 1, characterized in that, A liquid level sensor is installed in the third dissolving chamber (13).
9. The drug dissolving device according to claim 1, characterized in that, It also includes an automatic water replenishment mechanism and an automatic chemical dosing mechanism, which are connected to the inlet to achieve automatic water replenishment and chemical dosing.
10. The drug dissolving device according to claim 1, characterized in that, It also includes a controller, a level sensor, a first valve, a second valve, three stirring drive mechanisms (5), an automatic water replenishment mechanism, and an automatic dosing mechanism, all of which are electrically connected to the controller.