PAC adding device

Abstract

The utility model relates to the technical field of water treatment, and discloses a PAC dosing device which comprises a dosing box and a mixing box which are arranged above a treatment pond, a supporting plate is fixedly connected to the top of one end of the treatment pond, and a plurality of supporting legs are fixedly connected to the bottoms of the dosing box and the mixing box. The other ends of the supporting legs are fixedly connected with the side, away from the treatment pond, of the supporting plate, the bottom of the mixing box communicates with a guiding-out assembly, the other end of the guiding-out assembly communicates with a dosing box, stirring assemblies are connected into the dosing box and the mixing box correspondingly, a driving assembly is connected between the two stirring assemblies, and a dosing assembly is connected to the bottom of the dosing box. And the top of the mixing box is fixedly connected and communicated with a dosing hopper. According to the PAC dosing device, the mixing box and the dosing box are arranged above the water treatment pond, and when the dosing box feeds a PAC solution into the treatment pond, the PAC solution can be prepared through the mixing box and is supplied to the dosing box for continuous use, so that the neutral position of dosing of the treatment pond is avoided, and the water treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, concretely is a PAC dosing device. BACKGROUND

[0002] PAC (polyaluminum chloride) dosing device is a kind of equipment for water treatment, mainly used to remove suspended solids, colloid and other impurities in water;As a kind of efficient inorganic polymer coagulant, due to its good flocculation effect and wide applicability, it is widely used in water treatment, wastewater treatment and other fields.

[0003] When using PAC for water treatment, solid PAC needs to be dissolved in water in advance using a dedicated dissolving tank, and a solution with a certain concentration is prepared, then PAC solution is accurately added to the water to be treated by metering pump, PAC solution and water are fully mixed, coagulation reaction occurs, and larger flocs are formed, thereby effectively removing suspended solids and colloid and other impurities in water.

[0004] The patent with publication number CN219771849U discloses a PAC integrated dosing device, which comprises a bottom plate, a conveying assembly, a support column, a water tank, a drain pipe, a water inlet pipe, and a quantitative feeding assembly. The utility model is characterized by the threaded rod and the limiting rod arranged on the upper surface of the support plate, and the quantitative tank arranged on the lower surface of the lower support plate. When PAC is added, the threaded rod is rotated to drive the quantitative block inside the quantitative tank to move. The volume can be adjusted to the required volume by the scale line. The quantitative tank is made of transparent material. After adjustment, the first valve is opened by the controller, the feeding tank is discharged through the two discharge pipes, and when the PAC in the quantitative tank reaches the sensor on the lower surface of the quantitative block, a signal is transmitted to the controller to close the first control valve and stop discharging. At this time, the second control valve is opened, the PAC inside the quantitative tank enters the conveying pipe through the feeding pipe, and is conveyed to the water tank through the auger inside the conveying pipe.

[0005] However, the PAC dosing device in the above-mentioned technology still has the following problems: since the PAC solution used in water treatment needs to be maintained within a certain concentration range, it is necessary to avoid adding mixed water and PAC particles to the dosing tank when adding PAC solution in the dosing tank to the treatment tank, otherwise the concentration of PAC solution in the dosing tank will change. When the PAC solution in the dosing tank is added, the PAC solution needs to be reconfigured, and the configuration process cannot continue to add PAC solution to the treatment tank, which delays the water treatment time. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides a PAC dosing device, which can realize uninterrupted PAC solution addition and improve water treatment efficiency.

[0007] To achieve the above object, the utility model provides the following technical scheme: a PAC dosing device, including the dosing box and the mixing box of installing on the top of the treatment pool, the top of one end of the treatment pool is fixedly connected with the supporting plate, the bottom of dosing box and the mixing box all are fixedly connected with a plurality of support legs, the other end of a plurality of support legs all are fixedly connected with the side of the supporting plate away from the treatment pool, the bottom of the mixing box is continuously connected with the guide component, the other end of the guide component is communicated with the dosing box, the dosing box and the mixing box all are connected with the stirring assembly, the stirring assembly is connected between two stirring assemblies, and the bottom of dosing box is connected with the dosing assembly, and the top of the mixing box is fixedly connected and communicated with the dosing hopper.

[0008] Further, the stirring assembly includes a stirring shaft and a plurality of stirring rods, the plurality of stirring rods are uniformly distributed on the outer side of the stirring shaft and fixedly connected with the stirring shaft, and the top end of the stirring shaft penetrates through the dosing box or the mixing box and is connected with the driving assembly.

[0009] Further, the driving assembly includes a driving motor, a mixing belt, a dosing belt, a large speed-changing pulley, a small speed-changing pulley, a mixing pulley and a dosing pulley, the installation plate is fixedly connected between the dosing box and the mixing box, the driving motor is fixedly connected with the installation plate, the output shaft of the driving motor is fixedly connected with the large speed-changing pulley, the small speed-changing pulley is fixedly connected with the side of the large speed-changing pulley away from the driving motor, the mixing pulley is fixedly connected with the end of the stirring shaft penetrating through the mixing box in the mixing box, the dosing pulley is fixedly connected with the end of the stirring shaft penetrating through the dosing box in the dosing box, and the two ends of the mixing belt are respectively sleeved with the mixing pulley and the large speed-changing pulley, and the two ends of the dosing belt are respectively sleeved with the dosing pulley and the small speed-changing pulley.

[0010] Further, the guide component includes a guide pipe, a guide pump and a guide-in pipe, one end of the guide pipe is fixedly connected and communicated with the bottom of the mixing box, the other end is fixedly connected and communicated with the liquid inlet end of the guide pump, the liquid outlet end of the guide pump is fixedly connected and communicated with the guide-in pipe, the other end of the guide-in pipe is fixedly connected and communicated with the top side wall of the dosing box, and the guide pump is fixedly connected with the supporting plate through the mounting seat.

[0011] Further, the top side wall of the dosing box is fixedly connected and communicated with the overflow pipe, the end of the overflow pipe away from the dosing box extends downward below the supporting plate and is located above the treatment pool.

[0012] Further, the dosing assembly includes a dosing pipe, a shunt pipe and a plurality of spraying heads, one end of the dosing pipe is fixedly connected and communicated with the bottom of the dosing box, the other end of the dosing pipe penetrates through the supporting plate and is fixedly connected and communicated with the shunt pipe, the shunt pipe is fixedly connected with the bottom of the supporting plate, the plurality of spraying heads are fixedly connected and communicated with the side of the shunt pipe close to the treatment pool, and the spraying ports of the plurality of spraying heads all face downward the treatment pool.

[0013] Further, the outer wall of the dosing pipe is fixedly connected with a solenoid valve.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] The PAC dosing device, by setting the mixing box and the dosing box above the water treatment tank, when the dosing box puts the PAC solution into the treatment tank, the mixing box can prepare the PAC solution for the continuous use of the dosing box, reduces the waiting time for the preparation of the PAC solution after the PAC solution in the dosing box is put in, avoids the interval of the dosing of the treatment tank, and improves the water treatment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole appearance connecting structure schematic diagram of the utility model;

[0017] Figure 2 It is another angle connecting structure schematic diagram of the dosing box and the mixing box of the utility model;

[0018] Figure 3 It is the connecting structure cross section schematic diagram based on Figure 2 ;

[0019] Figure 4 It is the connecting structure side view schematic diagram of the dosing box and the mixing box of the utility model.

[0020] In the drawing: 1, treatment tank, 2, dosing box, 3, mixing box, 4, support plate, 5, support leg, 6, stirring shaft, 7, stirring rod, 8, drive motor, 9, mixing belt, 10, dosing belt, 11, large speed change pulley, 12, small speed change pulley, 13, mixing pulley, 14, dosing pulley, 15, mounting plate, 16, lead-out pipe, 17, lead-out pump, 18, lead-in pipe, 19, dosing hopper, 20, overflow pipe, 21, dosing pipe, 22, shunt pipe, 23, dosing head, 24, electromagnetic valve. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figure 1 - Figure 4A PAC dosing device includes a dosing tank 2 and a mixing tank 3 installed above a treatment tank 1. A support plate 4 is fixedly connected to the top of one end of the treatment tank 1. Several support legs 5 are fixedly connected to the bottom of both the dosing tank 2 and the mixing tank 3. The other ends of the support legs 5 are fixedly connected to the side of the support plate 4 away from the treatment tank 1. An outlet component is connected to the bottom of the mixing tank 3. The other end of the outlet component is connected to the dosing tank 2. A stirring component is connected inside both the dosing tank 2 and the mixing tank 3. A driving component is connected between the two stirring components. A dosing component is connected to the bottom of the dosing tank 2. A dosing hopper 19 is fixedly connected to and connected to the top of the mixing tank 3.

[0023] like Figure 1 - Figure 4 As shown, the PAC dosing device of this utility model is similar in structure to existing PAC dosing devices. The main improvement of this utility model is that it can continuously add water treatment solution to the treatment tank 1, thereby improving water treatment efficiency. Figures 1 to 4 As shown, in use, the PAC dosing device of this invention adds PAC granules to the mixing tank 3 through the dosing hopper 19, and injects a certain proportion of water into the mixing tank 3. Then, the driving component drives the stirring component to stir and mix the liquid in the mixing tank 3. After stirring and mixing, a PAC solution of a certain concentration is prepared and introduced into the dosing tank 2 through the outlet component. The PAC solution in the dosing tank 2 is then added to the treatment tank 1 through the dosing component at the bottom. While the dosing operation is being performed in the dosing tank 2, the mixing tank 3 continues to prepare the PAC solution and continuously introduces the prepared PAC solution into the dosing tank 2, so that the PAC solution in the dosing tank 2 is not completely used up. The preparation speed of the mixing tank 3 is greater than the dosing speed of the dosing tank 2, ensuring that the PAC solution in the dosing tank 2 can be continuously dosed, thereby improving water treatment efficiency. The stirring component in the dosing tank 2 can continuously stir the internal PAC solution, ensuring the uniformity of the PAC solution, making the mixing of the PAC solution more uniform, and improving the use effect of the PAC solution. It should be noted that both the dosing tank 2 and the mixing tank 3 are made of PE material to prevent corrosion of the tanks.

[0024] like Figure 2 As shown, the stirring assembly includes a stirring shaft 6 and several stirring rods 7. The stirring rods 7 are evenly distributed on the outside of the stirring shaft 6 and are fixedly connected to the stirring shaft 6. The top end of the stirring shaft 6 passes through the dosing tank 2 or the mixing tank 3 and is connected to the drive assembly. The drive assembly drives the stirring shaft 6 to rotate, which in turn drives the multiple stirring rods 7 to perform stirring and mixing operations in the mixing tank 3 or the dosing tank 2.

[0025] like Figure 1 - Figure 4As shown, the drive assembly includes a drive motor 8, a mixing belt 9, a dosing belt 10, a large speed change pulley 11, a small speed change pulley 12, a mixing pulley 13 and a dosing pulley 14, the installation plate 15 is fixedly connected between the dosing tank 2 and the mixing tank 3, the drive motor 8 is fixedly connected with the installation plate 15, the output shaft of the drive motor 8 is fixedly connected with the large speed change pulley 11, the small speed change pulley 12 is fixedly connected with the side of the large speed change pulley 11 away from the drive motor 8, the mixing pulley 13 is fixedly connected with the end of the stirring shaft 6 penetrating through the mixing tank 3 in the mixing tank 3, the dosing pulley 14 is fixedly connected with the end of the stirring shaft 6 penetrating through the dosing tank 2 in the dosing tank 2, the two ends of the mixing belt 9 are respectively sleeved with the mixing pulley 13 and the large speed change pulley 11, and the two ends of the dosing belt 10 are respectively sleeved with the dosing pulley 14 and the small speed change pulley 12. By starting the drive motor 8, the large speed change pulley 11 and the small speed change pulley 12 are driven to rotate, and the mixing pulley 13 at the top of the mixing tank 3 and the dosing pulley 14 at the top of the dosing tank 2 are driven to rotate through the mixing belt 9 and the dosing belt 10 respectively, and then the stirring assembly is driven to rotate and stir, the large speed change pulley 11 and the mixing pulley 13 are connected and braked, so that the stirring assembly in the mixing tank 3 is stirred more quickly, and it is ensured that the PAC particles can be mixed and stirred with water better, and the small speed change pulley 12 and the dosing pulley 14 are connected and braked, so that the stirring assembly in the dosing tank 2 rotates and stirs at a low speed, the mixing effect of the PAC solution in the dosing tank 2 is maintained at a low speed, and precipitates are avoided in the PAC solution.

[0026] As shown in Figure 1 Figure 4 As shown, the discharge assembly includes a discharge pipe 16, a discharge pump 17 and a guide pipe 18, one end of the discharge pipe 16 is fixedly connected with and communicates with the bottom of the mixing tank 3, the other end is fixedly connected with and communicates with the liquid inlet end of the discharge pump 17, the liquid outlet end of the discharge pump 17 is fixedly connected with and communicates with the guide pipe 18, the other end of the guide pipe 18 is fixedly connected with and communicates with the top side wall of the dosing tank 2, and the discharge pump 17 is fixedly connected with the support plate 4 through the mounting seat. The discharge pump 17 draws out the PAC solution in the mixing tank 3 that has been mixed through the discharge pipe 16, and guides the PAC solution into the dosing tank 2 through the guide pipe 18, so as to realize the rapid transfer of the PAC solution in the mixing tank 3 that has been mixed, facilitate the preparation of the PAC solution in the mixing tank 3 while the dosing operation is performed in the dosing tank 2, and when the capacity of the PAC solution in the dosing tank 2 is large, the preparation operation of the PAC solution in the mixing tank 3 can be paused, and the PAC solution in the dosing tank 2 is reserved, so that the preparation of the PAC solution in the mixing tank 3 is performed in advance when the PAC solution in the dosing tank 2 is about to be used up, and the dosing device can be continuously used for dosing operation.

[0027] As shown in Figure 2 ​As shown in the figure, the top side wall of the dosing box 2 is fixedly connected and communicated with an overflow pipe 20, the end of the overflow pipe 20 away from the dosing box 2 extends downward below the support plate 4 and is located above the treatment tank 1. By installing the overflow pipe 20 on the top side of the dosing box 2, when the PAC solution in the dosing box 2 is injected too much, the excess liquid can flow into the treatment tank 1 through the overflow pipe 20, avoiding leakage of the PAC solution.

[0028] As shown in the figure, Figure 4 The dosing assembly includes a dosing pipe 21, a shunt pipe 22 and a plurality of dosing heads 23, one end of the dosing pipe 21 is fixedly connected and communicated with the bottom of the dosing box 2, the other end of the dosing pipe 21 penetrates the support plate 4 and is fixedly connected and communicated with the shunt pipe 22, the shunt pipe 22 is fixedly connected with the bottom of the support plate 4, the plurality of dosing heads 23 are fixedly connected and communicated with the side of the shunt pipe 22 close to the treatment tank 1, and the spray ports of the plurality of dosing heads 23 all face the downward treatment tank 1. The PAC solution in the dosing box 2 flows into the shunt pipe 22 through the bottom dosing pipe 21, and the plurality of dosing heads 23 can spray the PAC solution into the sewage in the treatment tank 1.

[0029] As shown in the figure, Figure 4 The outer wall of the dosing pipe 21 is fixedly connected with a solenoid valve 24. By installing the solenoid valve 24 on the side of the dosing pipe 21, the dosing amount of the PAC solution can be controlled.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model.

Claims

1. A PAC dosing device, comprising a dosing box (2) and a mixing box (3) installed above a treatment tank (1), characterized in that: The top of one end of the treatment tank (1) is fixedly connected with a support plate (4), the bottoms of the dosing box (2) and the mixing box (3) are fixedly connected with a plurality of support legs (5), the other ends of the plurality of support legs (5) are fixedly connected with the side of the support plate (4) away from the treatment tank (1), the bottom of the mixing box (3) is communicated with a leading-out assembly, the other end of the leading-out assembly is communicated with the dosing box (2), the dosing box (2) and the mixing box (3) are both connected with stirring assemblies, the two stirring assemblies are connected with a driving assembly, the bottom of the dosing box (2) is connected with a dosing assembly, and the top of the mixing box (3) is fixedly connected and communicated with a dosing hopper (19).

2. The PAC dosing device according to claim 1, characterized in that: The stirring assembly comprises a stirring shaft (6) and a plurality of stirring rods (7), the plurality of stirring rods (7) are uniformly distributed on the outer side of the stirring shaft (6) and are fixedly connected with the stirring shaft (6), and the top end of the stirring shaft (6) penetrates the dosing box (2) or the mixing box (3) and is connected with the driving assembly.

3. The PAC dosing device according to claim 2, characterized in that: The driving assembly comprises a driving motor (8), a mixing belt (9), a dosing belt (10), a large speed-changing pulley (11), a small speed-changing pulley (12), a mixing pulley (13) and a dosing pulley (14), the dosing box (2) and the mixing box (3) are fixedly connected with a mounting plate (15), the driving motor (8) is fixedly connected with the mounting plate (15), the output shaft of the driving motor (8) is fixedly connected with the large speed-changing pulley (11), the small speed-changing pulley (12) is fixedly connected with the side of the large speed-changing pulley (11) away from the driving motor (8), the mixing pulley (13) is fixedly connected with the end of the stirring shaft (6) penetrating the mixing box (3) in the mixing box (3), the dosing pulley (14) is fixedly connected with the end of the stirring shaft (6) penetrating the dosing box (2) in the dosing box (2), and the two ends of the mixing belt (9) are respectively sleeved with the mixing pulley (13) and the large speed-changing pulley (11), and the two ends of the dosing belt (10) are respectively sleeved with the dosing pulley (14) and the small speed-changing pulley (12).

4. The PAC dosing device according to claim 1, 2 or 3, characterized in that: The leading-out assembly comprises a leading-out pipe (16), a leading-out pump (17) and a leading-in pipe (18), one end of the leading-out pipe (16) is fixedly connected and communicated with the bottom of the mixing box (3), the other end is fixedly connected and communicated with the liquid inlet end of the leading-out pump (17), the liquid outlet end of the leading-out pump (17) is fixedly connected and communicated with the leading-in pipe (18), the other end of the leading-in pipe (18) is fixedly connected and communicated with the top side wall of the dosing box (2), and the leading-out pump (17) is fixedly connected with the support plate (4) through a mounting seat.

5. The PAC dosing device according to claim 1, 2 or 3, characterized in that: The top side wall of the dosing box (2) is fixedly connected and communicated with an overflow pipe (20), one end of the overflow pipe (20) away from the dosing box (2) extends downwards to below the support plate (4) and is located at a position above the treatment tank (1).

6. The PAC dosing device according to claim 1, 2 or 3, characterized in that: The medicine administration assembly comprises a medicine outlet pipe (21), a distribution pipe (22) and a plurality of medicine spraying heads (23), one end of the medicine outlet pipe (21) is fixedly connected with the bottom of the medicine administration box (2) and communicates with the medicine administration box (2), the other end of the medicine outlet pipe (21) penetrates through the support plate (4) and is fixedly connected with the distribution pipe (22) and communicates with the distribution pipe (22), the distribution pipe (22) is fixedly connected with the bottom of the support plate (4), the plurality of medicine spraying heads (23) are fixedly connected with the side of the distribution pipe (22) close to the treatment tank (1) and communicate with the distribution pipe (22), and the spraying openings of the plurality of medicine spraying heads (23) all face the treatment tank (1) below.

7. The PAC dosing device according to claim 6, characterized in that: The outer wall of the medicine outlet pipe (21) is fixedly connected with an electromagnetic valve (24).

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