Medicament preparing and adding system for sludge dewatering

Abstract

The invention relates to the technical field of water treatment, in particular to a sludge dewatering agent preparing and adding system which comprises a tank body, a water inlet pipe and a water outlet pipe. The jacket is arranged on the outer side of the tank body, and a closed cavity is formed between the jacket and the tank body; the feeding device is arranged at the top of the tank body; the jet head is arranged on the inner wall of the tank body; the jet head is communicated with the closed cavity; the stirring device comprises a driving mechanism, a dispersing disc and a stirring rod; the driving mechanism is fixedly arranged at the top of the tank body; a driving shaft of the driving mechanism extends into the tank body; the top of the dispersion disc is of a circular truncated cone structure; diversion trenches are uniformly distributed on the inclined surface of the circular truncated cone structure; the diversion trench extends along the generatrix of the circular truncated cone structure; the dispersing disc is sleeved on the driving shaft, and the stirring rod is fixedly arranged at the bottom of the dispersing disc; the aeration device is arranged at the bottom of the inner side of the tank body; and the aeration device is communicated with the closed cavity. By adopting the chemical mixing device, the chemical mixing efficiency can be improved, the mixing uniformity and the chemical solution concentration stability are improved, and accurate chemical supply is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, and particularly relates to a medicament preparation and dosing system for sludge dewatering. BACKGROUND

[0002] Sludge is a byproduct in the process of sewage treatment, and its treatment and disposal has become an important issue in the field of environmental protection. In order to realize the harmless, reduction and resource treatment of sludge, sludge dewatering technology plays a key role in practical application. The advantages and disadvantages of dewatering effect not only directly affect the economy and environmental protection of subsequent sludge disposal, but also become one of the technical bottlenecks restricting the development of the environmental protection industry. In the aspect of sludge modification treatment, the chemical method is still the mainstream means, and the core is to change the properties of sludge by adding chemical agents to enhance its dewatering performance. The current medicament is mainly added after mechanical stirring, and the medicament mixing efficiency is low, and the mixing is uneven, the medicament solution concentration stability is poor, it is difficult to guarantee the accurate supply of medicament, which leads to the decline of sewage treatment effect, and also causes the invalid consumption of medicament, increases the operation cost, and is not conducive to large-scale application. SUMMARY

[0003] Therefore, the present application provides a medicament preparation and dosing system for sludge dewatering, which mainly aims to improve the mixing efficiency of the medicament, improve the uniformity of mixing and the stability of the medicament solution concentration, and guarantee the accurate supply of the medicament.

[0004] In order to achieve the above-mentioned purpose, the present application mainly provides the following technical scheme:

[0005] The embodiment of the present application provides a medicament preparation and dosing system for sludge dewatering, which comprises: a tank body, a jacket, a feeding device, a jet head, a stirring device, an aeration device, an air inlet pipeline, a water inlet pipeline and a liquid outlet pipeline.

[0006] The top of the tank body is provided with a feeding port; a control valve is arranged on the feeding port;

[0007] The top of the tank body is provided with a water inlet; a spray head is arranged on the inner side of the water inlet;

[0008] The bottom of the tank body is provided with a liquid outlet;

[0009] A liquid level sensor is arranged on the tank body;

[0010] The jacket is arranged on the outer side of the tank body, and forms a closed chamber with the tank body; an air inlet is arranged on the outer side of the jacket;

[0011] The feeding device is arranged on the top of the tank body, and is used for adding materials to the tank body;

[0012] The air jet head is arranged on the inner wall of the tank body below the feed inlet; the air jet head is in communication with the closed chamber for spraying the gas in the closed chamber towards the lower side of the feed inlet;

[0013] The stirring device comprises a driving mechanism, a dispersing disc and a stirring rod;

[0014] The driving mechanism is fixedly arranged on the top of the tank body; the driving shaft of the driving mechanism extends to the inside of the tank body;

[0015] The top of the dispersing disc is in the shape of a circular truncated cone; the inclined surface of the circular truncated cone is uniformly provided with flow guide grooves; the flow guide grooves extend along the generatrix of the circular truncated cone; the dispersing disc is coaxially arranged on the driving shaft; the dispersing disc is located in the middle of the tank body;

[0016] The stirring rod is fixedly arranged on the bottom of the dispersing disc; the stirring rod is in plurality; the plurality of stirring rods are arrayed on the bottom of the dispersing disc;

[0017] The aeration device is arranged on the inner side of the bottom of the tank body; the aeration device is in communication with the closed chamber;

[0018] The air inlet pipeline is in communication with the air inlet; the air inlet pipeline is provided with a flow regulating valve one;

[0019] The water inlet pipeline is in communication with the water inlet; the water inlet pipeline is provided with a flow regulating valve two;

[0020] The liquid outlet pipeline is in communication with the liquid outlet; the liquid outlet pipeline is provided with a metering pump.

[0021] Further, the air inlet pipeline is provided with a temperature detection device;

[0022] The air inlet pipeline is provided with a pressure detection device.

[0023] Further, it further comprises a control system;

[0024] The control system is connected with the feeding device, the flow regulating valve one, the flow regulating valve two, the metering pump, the temperature detection device, the pressure detection device and the liquid level sensor to collect liquid level, temperature and pressure data and control the feeding device, the flow regulating valve one, the flow regulating valve two and the metering pump.

[0025] Further, the aeration device is in plurality; the plurality of aeration devices are uniformly distributed on the inner side of the bottom of the tank body.

[0026] Further, the air injection heads are multiple; the multiple air injection heads are distributed at intervals for blowing the material entering the feed port in multiple directions.

[0027] Further, the stirring rod is in a cylindrical structure.

[0028] By the above technical solution, the sludge dewatering agent preparation and dosing system has at least the following advantages:

[0029] The mixing efficiency of the agent can be improved, the uniformity of mixing and the stability of the agent solution concentration are improved, and the accurate supply of the agent is ensured.

[0030] The above description is only a summary of the technical solution of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following is a preferred embodiment of the present application and the detailed description of the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A sludge dewatering agent preparation and dosing system provided by an embodiment of the present application is shown in the figure.

[0032] The figure shows:

[0033] 1 is a tank body, 2 is a jacket, 3 is a feeding device, 4 is an air injection head, 5 is a stirring device, 5-1 is a driving mechanism, 5-2 is a dispersion disc, 5-21 is a flow guide groove, 5-3 is a stirring rod, 6 is an aeration device, 7 is an air inlet pipeline, 8 is a water inlet pipeline, 9 is a liquid outlet pipeline, DETAILED DESCRIPTION

[0034] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined object, the following will combine the drawings and the preferred embodiments to specifically describe the specific embodiments, structures, features and effects according to the present application. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0035] For example, Figure 1As shown, one embodiment of the present application proposes a sludge dewatering agent configuration and adding system, comprising: a tank body 1, a jacket 2, a feeding device 3, a jet head 4, a stirring device 5, an aeration device 6, an air inlet pipeline 7, a water inlet pipeline 8 and a liquid outlet pipeline 9; the top of the tank body 1 is provided with a feeding port for adding materials; a control valve is arranged on the feeding port for controlling the opening and closing of the feeding port; the top of the tank body 1 is provided with a water inlet for adding water or mixed liquid materials; the inner side of the water inlet is provided with a spray head for spraying water or mixed liquid materials to the space above the dispersion disc 5-2, so that the materials are mixed once when they are blown apart by the jet head 4 after entering the feeding port. The bottom of the tank body 1 is provided with a liquid outlet for the output of the mixed liquid. A liquid level sensor is arranged on the tank body 1 for monitoring the liquid level in the tank body 1 to ensure that the liquid level does not exceed the dispersion disc 5-2. The jacket 2 is arranged outside the tank body 1 to form a closed chamber with the tank body 1; the outer side of the jacket 2 is provided with an air inlet, and the gas in the jacket 2 can ensure the temperature of the tank body 1, thereby ensuring the stability of the liquid in the tank.

[0036] The feeding device 3 is arranged at the top of the tank body 1 for adding materials to the tank body 1; the feeding device 3 can be an existing electric feeding device to accurately add materials. The jet head 4 is arranged on the inner wall of the tank body 1 below the feeding port; the jet head 4 is in communication with the closed chamber for spraying the gas in the closed chamber to the lower side of the feeding port, so that the materials entering the feeding port can be dispersed in the space and preliminarily mixed with the water or liquid sprayed in the space. Preferably, the jet head 4 is a plurality of jet heads; the plurality of jet heads 4 are distributed at intervals for blowing the materials entering the feeding port in multiple directions, which is beneficial to the sufficient diffusion of the materials.

[0037] The stirring device 5 comprises: a driving mechanism 5-1, a dispersion disc 5-2 and a stirring rod 5-3; the driving mechanism 5-1 is fixedly arranged at the top of the tank body 1; the driving mechanism 5-1 can be a motor or a hydraulic motor. The driving shaft of the driving mechanism 5-1 extends to the inside of the tank body 1; the top of the dispersion disc 5-2 is a circular truncated cone structure; the inclined surface of the circular truncated cone structure is uniformly provided with flow guide grooves 5-21; the flow guide grooves 5-21 extend along the generatrix of the circular truncated cone structure; the dispersion disc 5-2 is coaxially arranged on the driving shaft; the dispersion disc 5-2 is located in the middle of the tank body 1; the flow guide grooves 5-21 on the dispersion disc 5-2 receive the preliminarily mixed materials and water, so that the water and materials are further mixed in the flow guide grooves 5-21 and then gradually slide into the liquid in the tank body 1; since the spray head is located above one side of the dispersion disc 5-2, the materials in the flow guide grooves 5-21 on the side of the dispersion disc 5-2 are smoothly sprayed into the liquid; during the rotation of the dispersion disc 5-2 driven by the driving mechanism 5-1, the materials in the flow guide grooves 5-21 on the dispersion disc 5-2 gradually slide down, which is easier to dissolve in the liquid.

[0038] A stirring rod 5-3 is fixedly disposed at the bottom of the dispersion disk 5-2; there are multiple stirring rods 5-3; the multiple stirring rods 5-3 are arranged in an array at the bottom of the dispersion disk 5-2 to ensure uniform mixing of the reagent solution. The stirring rod 5-3 is preferably cylindrical in structure to reduce damage to the solution from its sharp edges while ensuring its stirring effect.

[0039] An aeration device 6 is installed at the bottom inner side of the tank 1; the aeration device 6 is connected to the closed chamber and aerates from the bottom up to further enhance the mixing effect of the solution. There can be multiple aeration devices 6; multiple aeration devices 6 are evenly distributed at the bottom inner side of the tank 1 to ensure their aeration effect and improve the mixing effect of the solution.

[0040] The air inlet pipeline 7 is connected to the air inlet and is used to supply air to the jacket 2. A flow regulating valve is installed on the air inlet pipeline 7 to control the air inlet flow. More preferably, a temperature detection device is installed on the air inlet pipeline 7 to monitor the gas temperature and ensure that the temperature of the tank 1 is suitable. A pressure detection device is installed on the air inlet pipeline 7 to monitor the air inlet pressure.

[0041] Water inlet pipeline 8 is connected to the water inlet and is used to supply water or other mixed liquids to the tank 1; a flow regulating valve 2 is installed on water inlet pipeline 8 to regulate the flow rate; liquid outlet pipeline 9 is connected to the liquid outlet; a metering pump is installed on liquid outlet pipeline 9 to ensure accurate output flow rate and ensure dosage.

[0042] An embodiment of the present invention provides a sludge dewatering agent preparation and dosing system that can improve the mixing efficiency of the agents, improve the uniformity of mixing and the stability of the agent solution concentration, and ensure accurate agent supply.

[0043] As a preferred embodiment of the above embodiments, one embodiment of the present invention provides a sludge dewatering agent preparation and dosing system, which further includes: a control system; the control system is connected to the feeding device 3, flow regulating valve one, flow regulating valve two, metering pump, temperature detection device, pressure detection device and liquid level sensor to collect liquid level, temperature and pressure data, and to control the feeding device 3, flow regulating valve one, flow regulating valve two and metering pump to achieve automated control.

[0044] An embodiment of the present invention provides a sludge dewatering agent preparation and dosing system, which can be two systems connected in series, with the effluent pipeline 9 of the first system connected to the influent pipeline 8 of the second system to achieve mixing of multiple agents.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A sludge dewatering agent preparation and dosing system, characterized in that, It comprises a tank, a jacket, a feeding device, a jet head, a stirring device, an aeration device, an air inlet pipeline, a water inlet pipeline and a liquid outlet pipeline. The top of the tank is provided with a feeding port, and a control valve is arranged on the feeding port. The top of the tank is provided with a water inlet, and a nozzle is arranged on the inner side of the water inlet. The bottom of the tank is provided with a liquid outlet. A liquid level sensor is arranged on the tank. The jacket is arranged on the outer side of the tank to form a closed chamber with the tank, and an air inlet is arranged on the outer side of the jacket. The feeding device is arranged on the top of the tank to add materials to the tank. The jet head is arranged on the inner wall of the tank below the feeding port. The jet head is in communication with the closed chamber to spray the gas in the closed chamber to the lower side of the feeding port. The stirring device comprises a driving mechanism, a dispersing disc and stirring rods. The driving mechanism is fixedly arranged on the top of the tank, and a driving shaft of the driving mechanism extends into the tank. The top of the dispersing disc is in the shape of a circular truncated cone, and flow guide grooves are uniformly distributed on the inclined surface of the circular truncated cone. The dispersing disc is coaxially arranged on the driving shaft. The stirring rods are fixedly arranged on the bottom of the dispersing disc. The aeration device is arranged on the inner bottom of the tank and in communication with the closed chamber. The air inlet pipeline is in communication with the air inlet, and a flow regulating valve one is arranged on the air inlet pipeline. The water inlet pipeline is in communication with the water inlet, and a flow regulating valve two is arranged on the water inlet pipeline. The liquid outlet pipeline is in communication with the liquid outlet, and a metering pump is arranged on the liquid outlet pipeline.

2. The sludge dewatering agent preparation and adding system according to claim 1, wherein a temperature detection device is arranged on the air inlet pipeline.

3. The sludge dewatering agent preparation and adding system according to claim 1, wherein a pressure detection device is arranged on the air inlet pipeline.

3. The sludge dewatering agent preparation and dosing system according to claim 2, characterized by 4. The sludge dewatering agent preparation and adding system according to claim 1, further comprising a control system.

5. The sludge dewatering agent preparation and adding system according to claim 1, wherein the control system is connected with the feeding device, the flow regulating valve one, the flow regulating valve two, the metering pump, the temperature detection device, the pressure detection device and the liquid level sensor to collect liquid level, temperature and pressure data and control the feeding device, the flow regulating valve one, the flow regulating valve two and the metering pump.

6. The sludge dewatering agent preparation and adding system according to claim 1, wherein the aeration device is multiple, and the multiple aeration devices are uniformly distributed on the inner bottom of the tank.

7. The sludge dewatering agent preparation and adding system according to claim 1, wherein the jet head is multiple, and the multiple jet heads are spaced apart to blow the materials entering the feeding port in multiple directions.

8. The sludge dewatering agent preparation and adding system according to claim 1, wherein the stirring rod is in the shape of a cylinder. ​ ​ ​ ​

Images