Automatic continuous feeding device for powdery water treatment agent

Abstract

The utility model discloses an automatic continuous feeding device for a powdery water treatment agent, which belongs to the technical field of water treatment and comprises a powdery water treatment agent feeding unit, a flocculation unit and a sludge backflow unit, and the output end of the powdery water treatment agent feeding unit is connected with a shaftless screw conveyor. The output end of the shaftless screw conveyor is communicated with a flocculation unit, one side of the flocculation unit is communicated with a water inlet pipe, the front end of the water inlet pipe is fixedly connected with an electromagnetic flowmeter, the other side of the flocculation unit is communicated with a sedimentation tank, and the sedimentation tank is connected with a sludge backflow unit; the sludge backflow unit comprises a sludge pump, one end of the sludge pump is communicated with the sedimentation tank, the other end of the sludge pump is communicated with a sludge pipe, the sludge pipe is provided with a tee joint, one of the other two ends of the tee joint is connected with the water inlet pipe and provided with a sludge backflow valve, and the other end is connected with a sludge tank and provided with a sludge discharge valve. According to the utility model, the dosing of drugs and the backflow and discharge of sludge can be automatically controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of water treatment, and in particular relates to an automatic and continuous dosing device for powdered water treatment agents. Background Art

[0002] At present, there are the following problems with mine wastewater. First, there is a severe shortage of professional and technical personnel in water treatment in various mining areas, which is not conducive to management and cannot actively deal with problems that occur during operation. Second, the water volume of most mine water fluctuates greatly, and it is difficult to control the dosage of the dosing, resulting in waste of agents or small dosage that fails to meet the standards. Third, the flocculants currently on the market are mostly composed of polyaluminum, polyiron and other components, which are harmful to the human body. During the dosing process, the agent powder floats in the air and workers inhale it into their bodies, affecting their health. The sludge produced is harmful to the surrounding environment. Therefore, it is of great significance to design an economical, practical and efficient automatic continuous dosing device for powdered water treatment agents. Therefore, an automatic continuous dosing device for powdered water treatment agents is designed.

[0003] Therefore, an automatic and continuous dosing device for powdered water treatment chemicals is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes an automatic and continuous dosing device for powdered water treatment agents.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic continuous dosing device for powdered water treatment chemicals, comprising: a powdered water treatment chemical dosing unit, a flocculation unit and a sludge return unit, wherein the output end of the powdered water treatment chemical dosing unit is connected to a shaftless screw conveyor, and the output end of the shaftless screw conveyor is connected to the flocculation unit, one side of the flocculation unit is connected to a water inlet pipe, and the front end of the water inlet pipe is fixedly connected to an electromagnetic flowmeter, the other side of the flocculation unit is connected to a sedimentation tank, and the sedimentation tank is connected to the sludge return unit; the sludge return unit comprises a sludge pump, one end of the sludge pump is connected to the sedimentation tank, and the other end is connected to a sludge pipe, and a sludge flowmeter and a sludge concentration meter are arranged on the sludge pipe, and a tee is arranged after the sludge flowmeter and the sludge concentration meter are passed through the sludge flowmeter and the sludge concentration meter, and the other two ends of the tee are connected to the water inlet pipe and provided with a sludge return valve, and the other end is connected to the outside and provided with a sludge discharge valve.

[0006] Preferably, the powdered water treatment agent dosing unit includes a storage hopper, which includes a cylindrical barrel and a conical barrel, and the cylindrical barrel is fixedly connected to the conical barrel; a cover plate is provided above the cylindrical barrel, and the bottom of the conical barrel is connected to the input end of the shaftless screw conveyor.

[0007] Preferably, a vibrating arch breaker is fixedly connected to the outer wall of the lower part of the conical cylinder, a mechanical arch breaker is fixedly connected to the conical cylinder below the vibrating arch breaker, and the bottom of the conical cylinder is open and connected to the shaftless screw conveyor through a flexible connecting pipe.

[0008] Preferably, the mechanical arch breaker comprises a motor, a central shaft and a rigid arch breaking shaft, and the central shaft and the rigid arch breaking shaft extend into the interior of the conical cylinder as a whole.

[0009] Preferably, a gate valve is provided in the conical cylinder below the mechanical arch breaker.

[0010] Preferably, the flocculation unit comprises a flocculation tank, in which a material guide cylinder is fixedly connected, the water inlet pipe passes through the flocculation tank and is connected to the bottom of the material guide cylinder, the output end of the shaftless screw conveyor is connected to the inside of the material guide cylinder, and one side of the flocculation tank is connected to the sedimentation tank.

[0011] Preferably, a stirrer is fixedly connected to the top of the flocculation tank, and a stirring shaft of the stirrer extends into the interior of the material guiding cylinder.

[0012] Preferably, the shaftless screw conveyor motor is a variable frequency motor, and the sludge pump is a variable frequency pump.

[0013] Compared with the prior art, the utility model has the following advantages and technical effects:

[0014] The powdered water treatment agent dosing unit stores water treatment agents and continuously transports them to the shaftless screw conveyor. The water inlet volume measured by the electromagnetic flowmeter and the sludge return volume measured by the sludge flowmeter are transmitted to the PLC control system. The PLC control system controls the shaftless screw conveyor according to the measured data to properly transport the water treatment agent and dosing it to the flocculation unit. The wastewater and the water treatment agent are mixed and flocculated in the flocculation unit, and then overflow into the sedimentation tank for sedimentation. The precipitated sludge is pumped into the sludge pipe by the sludge pump. The sludge pumped into the sludge pipe is measured by the sludge flowmeter and the sludge concentration meter. After the flow rate and concentration are obtained, the data is transmitted to the PLC control system. The PLC control system controls the on-off of the sludge return valve and the sludge discharge valve according to the measured sludge concentration. If the sludge concentration reaches the discharge standard, the sludge discharge valve is opened and the sludge return valve is closed to discharge the sludge; if the sludge concentration does not reach the discharge standard, the sludge discharge valve is closed and the sludge return valve is opened to return the sludge to the water inlet pipe and enter the flocculation unit again for flocculation. The frequency of the sludge pump can also be controlled through the feedback data of the electromagnetic flowmeter, the sludge flowmeter and the sludge concentration meter, thereby controlling the sludge return amount. The utility model automatically controls the return and discharge of the sludge added by the PLC control system, can be adjusted in real time, and can be processed in time. It can accurately control the addition of the agent, save the agent while ensuring that the treatment meets the standard, and can also avoid direct contact between workers and water treatment agents and sludge, reducing the impact of water treatment agents and sludge on human health. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 The utility model is a schematic diagram of the structure of a device for automatically and continuously adding powdered water treatment agents.

[0017] In the figure: 1. electromagnetic flowmeter; 2. water inlet pipe; 3. material guide cylinder; 4. sludge pump; 5. sludge flowmeter; 6. sludge concentration meter; 7. sludge discharge valve; 8. sludge return valve; 9. sludge pipe; 10. mixer; 11. flocculation tank; 12. storage hopper; 13. cover plate; 14. mechanical arch breaker; 15. vibration arch breaker; 16. gate valve; 17. shaftless screw conveyor; 18. soft connection device; 1201. cylindrical cylinder; 1202. conical cylinder. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 1 As shown, this embodiment provides an automatic continuous dosing device for powdered water treatment chemicals, including: a powdered water treatment chemical dosing unit, a flocculation unit and a sludge return unit, the output end of the powdered water treatment chemical dosing unit is connected to a shaftless screw conveyor 17, the output end of the shaftless screw conveyor 17 is connected to the flocculation unit, one side of the flocculation unit is connected to a water inlet pipe 2, the front end of the water inlet pipe 2 is fixedly connected to an electromagnetic flowmeter 1, the other side of the flocculation unit is connected to a sedimentation tank, and the sedimentation tank is connected to the sludge return unit; the sludge return unit includes a sludge pump 4, one end of the sludge pump 4 is connected to the sedimentation tank, and the other end is connected to a sludge pipe 9, the sludge pipe 9 is provided with a sludge flowmeter 5 and a sludge concentration meter 6, the sludge pipe 9 is provided with a tee after the sludge flowmeter 5 and the sludge concentration meter 6, the other two ends of the tee are connected to the water inlet pipe 2 and provided with a sludge return valve 8, and the other end is connected to the outside and provided with a sludge discharge valve 7.

[0021] The powdered water treatment agent dosing unit stores water treatment agents and continuously transports them to the shaftless screw conveyor 17. The water inflow measured by the electromagnetic flowmeter 1 and the sludge return flow measured by the sludge flowmeter 5 are transmitted to the PLC control system. The PLC control system controls the shaftless screw conveyor 17 to appropriately transport and dose the water treatment agents to the flocculation unit according to the measured data. The wastewater and the water treatment agents are mixed and flocculated in the flocculation unit, and then overflow into the sedimentation tank for sedimentation. The precipitated sludge is pumped into the sludge pipe 9 by the sludge pump 4. The sludge pumped into the sludge pipe 9 is measured by the sludge flowmeter 5 and the sludge concentration meter 6. After the flow rate and concentration are obtained, the data are transmitted to the PLC control system. The PLC control system controls the on-off of the sludge return valve 8 and the sludge discharge valve 7 according to the measured sludge concentration. If the sludge concentration reaches the discharge standard, the sludge discharge valve 7 is opened and the sludge return valve 8 is closed to discharge the sludge; if the sludge concentration does not reach the discharge standard, the sludge discharge valve 7 is closed and the sludge return valve 8 is opened to return the sludge to the water inlet pipe 2 and enter the flocculation unit again for flocculation. The frequency of the sludge pump 4 can also be controlled through the feedback data of the electromagnetic flowmeter 1, the sludge flowmeter 5 and the sludge concentration meter 6, thereby controlling the sludge return amount. The utility model automatically controls the return and discharge of the sludge added by the PLC control system, can be adjusted in real time, and can be processed in time. It can accurately control the addition of the agent, save the agent while ensuring that the treatment meets the standard, and can also avoid direct contact between workers and water treatment agents and sludge, reducing the impact of water treatment agents and sludge on human health.

[0022] A further optimized solution is that the powdered water treatment agent dosing unit includes a storage hopper 12, and the storage hopper 12 includes a cylindrical body 1201 and a conical body 1202, and the cylindrical body 1201 is fixedly connected to the conical body 1202; a cover plate 13 is provided above the cylindrical body 1201, and the conical body 1202 is connected to the input end of the shaftless screw conveyor 17 below.

[0023] The bottom of the storage hopper 12 is a cone to facilitate the discharge of powder medicine, and the medicine can be added by opening the cover plate 13.

[0024] To further optimize the solution, a vibrating arch breaker 15 is fixedly connected to the lower outer wall of the conical cylinder 1202, a mechanical arch breaker 14 is fixedly connected to the conical cylinder 1202 below the vibrating arch breaker 15, and the bottom of the conical cylinder 1202 is open and connected to the shaftless screw conveyor 17 through a flexible connecting pipe.

[0025] The vibrating arch breaker 15 uses a vibrating motor to vibrate the side wall of the conical cylinder 1202 to prevent the powder medicine from sticking to the wall and help the powder medicine to move downward. The mechanical arch breaker 14 can break up the powder medicine through mechanical vibration and stirring to prevent the powder medicine from compacting, and at the same time push the medicine downward to the input end of the shaftless screw conveyor 17.

[0026] Furthermore, the vibration arch breaker 15 is preferably a vibration arch breaker 15 of model YZS5-2.

[0027] According to a further optimization scheme, the mechanical arch breaker 14 includes a motor, a central shaft and a rigid arch breaking shaft, and the central shaft and the rigid arch breaking shaft are integrally extended into the interior of the conical cylinder 1202 .

[0028] The motor drives the central shaft and the rigid arch-breaking shaft to rotate, breaking up the compacted powder medicine, and at the same time pushing the powder medicine downward into the shaftless screw conveyor 17.

[0029] To further optimize the solution, a gate valve 16 is provided in the conical cylinder 1202 below the mechanical arch breaker 14 .

[0030] The gate valve 16 can macroscopically control the amount of powder medicine flowing downward by the size of the opening.

[0031] A further optimized solution is that the flocculation unit includes a flocculation tank 11, in which a material guide cylinder 3 is fixedly connected, a water inlet pipe 2 passes through the flocculation tank 11 and is connected to the bottom of the material guide cylinder 3, an output end of the shaftless screw conveyor 17 is connected to the inside of the material guide cylinder 3, and one side of the flocculation tank 11 is connected to the sedimentation tank.

[0032] The reagent contacts the wastewater in the guide tube 3 to generate flocculation precipitation. As the amount of wastewater to be treated increases, the flocculated suspension enters the flocculation tank 11 for further flocculation, and then overflows into the sedimentation tank to precipitate the flocculates.

[0033] According to a further optimized solution, a stirrer 10 is fixedly connected to the top of the flocculation tank 11 , and a stirring shaft of the stirrer 10 extends into the interior of the material guide cylinder 3 .

[0034] The mixer 10 stirs the reagent and the wastewater to help the reagent and the wastewater to be better mixed, so that the two are fully in contact, which is conducive to flocculation.

[0035] According to a further optimization scheme, the motor of the shaftless screw conveyor 17 is a variable frequency motor, and the sludge pump 4 is a variable frequency pump.

[0036] Variable frequency motors and variable frequency pumps are more conducive to precise control of material transportation.

[0037] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for automatically and continuously dosing a powdered water treatment agent, characterized in that: include: A powdered water treatment agent dosing unit, a flocculation unit and a sludge return unit, wherein the output end of the powdered water treatment agent dosing unit is connected to a shaftless screw conveyor (17), the output end of the shaftless screw conveyor (17) is connected to the flocculation unit, one side of the flocculation unit is connected to a water inlet pipe (2), the front end of the water inlet pipe (2) is fixedly connected to an electromagnetic flowmeter (1), the other side of the flocculation unit is connected to a sedimentation tank, the sedimentation tank is connected to the sludge return unit; the sludge return unit comprises a sludge pump (4), one end of the sludge pump (4) is connected to the sedimentation tank, and the other end is connected to a sludge pipe (9), the sludge pipe (9) is provided with a sludge flowmeter (5) and a sludge concentration meter (6), the sludge pipe (9) is provided with a tee, the other two ends of the tee are connected to the water inlet pipe (2) and provided with a sludge return valve (8), and the other ends are connected to the outside and provided with a sludge discharge valve (7).

2. The automatic continuous dosing device for powdered water treatment agents according to claim 1 is characterized in that: The powdered water treatment agent dosing unit comprises a storage hopper (12), wherein the storage hopper (12) comprises a cylindrical barrel (1201) and a conical barrel (1202), wherein the cylindrical barrel (1201) is fixedly connected to the conical barrel (1202); a cover plate (13) is provided above the cylindrical barrel (1201), and the conical barrel (1202) is connected to the input end of the shaftless screw conveyor (17) at the bottom.

3. The automatic continuous dosing device for powdered water treatment agents according to claim 2 is characterized in that: A vibrating arch breaker (15) is fixedly connected to the lower outer wall of the conical cylinder (1202), and a mechanical arch breaker (14) is fixedly connected to the conical cylinder (1202) below the vibrating arch breaker (15). The bottom of the conical cylinder (1202) is open and connected to the shaftless screw conveyor (17) through a flexible connecting pipe.

4. The automatic continuous dosing device for powdered water treatment agents according to claim 3 is characterized in that: The mechanical arch breaker (14) comprises a motor, a central shaft and a rigid arch breaking shaft, and the central shaft and the rigid arch breaking shaft are integrally extended into the interior of the conical cylinder (1202).

5. The automatic continuous dosing device for powdered water treatment agents according to claim 3 is characterized in that: A gate valve (16) is provided in the conical cylinder (1202) below the mechanical arch breaker (14).

6. The automatic continuous dosing device for powdered water treatment agents according to claim 1, characterized in that: The flocculation unit comprises a flocculation tank (11), a material guide cylinder (3) is fixedly connected to the flocculation tank (11), the water inlet pipe (2) passes through the flocculation tank (11) and is connected to the bottom of the material guide cylinder (3), the output end of the shaftless screw conveyor (17) is connected to the inside of the material guide cylinder (3), and one side of the flocculation tank (11) is connected to the sedimentation tank.

7. The automatic continuous dosing device for powdered water treatment agents according to claim 6, characterized in that: A stirrer (10) is fixedly connected to the top of the flocculation tank (11), and a stirring shaft of the stirrer (10) extends into the interior of the material guide cylinder (3).

8. The automatic continuous dosing device for powdered water treatment agents according to claim 1 is characterized in that: The motor of the shaftless screw conveyor (17) is a variable frequency motor, and the sludge pump (4) is a variable frequency pump.

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