A method for using a non-powered cyclone sedimentation tank

Abstract

The present invention discloses a non-powered cyclone sedimentation tank, which belongs to the technical field of water purification equipment, and includes: a clean water tank, a sewage pipe arranged at the bottom of the clean water tank, a cyclone device and an outlet channel arranged in the clean water tank, an inlet pipe arranged at one side of the clean water tank, and a reagent adding device connected to the cyclone device and the inlet pipe respectively; the outlet channel is arranged above the cyclone device and connected to the inner wall of the clean water tank, and an outlet pipe is arranged at the connection between the outlet channel and the clean water tank; the cyclone device includes: a support frame arranged at the bottom of the clean water tank and an inlet coil arranged on the support frame; the inlet coil is connected to the inlet pipe, and the inlet coil is connected to the reagent adding device. In this scheme, the inlet coil and the reagent adding device are arranged to replace the stirring device and the mixing device, thereby saving costs and reducing the loss of electric energy, and the sewage can be filtered multiple times through the suspended layer and the inclined tube, thereby ensuring that the sewage filtering process is thorough.

Description

Technical Field

[0001] The invention relates to the technical field of water purification equipment, and in particular to a method for using an unpowered cyclone sedimentation tank. Background Art

[0002] The cyclone grit chamber utilizes the cyclone of water to separate mud, sand and organic matter to achieve the purpose of sand removal. It is widely used in the pre-treatment process of urban hotels, factories, mines, enterprises and institutions as well as large, medium and small water treatment projects in cities.

[0003] In the sewage treatment process, because the sewage contains mud and sand, if it is not treated, it will affect the treatment effect of the subsequent treatment equipment. The existing technology uses an air lift sand removal pump to lift the sand and water separator, which requires a lot of equipment, such as a mud scraper, a stirring device, a compressed air device and other devices, resulting in high costs and large machine losses. Summary of the invention

[0004] On the one hand, the present invention provides a non-powered cyclone sedimentation tank in response to the above-mentioned problems.

[0005] The technical solution adopted by the present invention is: a non-powered cyclone sedimentation tank, comprising: a clean water tank, a sewage pipe arranged at the bottom of the clean water tank, a cyclone device and a water outlet channel arranged in the clean water tank, a water inlet pipe arranged at one side of the clean water tank, and a reagent adding device connected to the cyclone device and the water inlet pipe respectively;

[0006] The water outlet channel is arranged above the cyclone device and connected to the inner wall of the clean water tank, and a water outlet pipe is arranged at the connection between the water outlet channel and the clean water tank;

[0007] The cyclone device comprises: a support frame arranged at the bottom of the clean water tank and a water inlet coil arranged on the support frame;

[0008] Among them, the water inlet coil is connected to the water inlet pipe, and the water inlet coil is connected to the reagent adding device; the port of the water inlet coil is located at the center of the clean water tank, and the port part of the water inlet coil is arranged from top to bottom.

[0009] Furthermore, the bottom structure of the clean water tank is a conical structure.

[0010] Furthermore, a group of supporting legs are provided at the bottom of the clean water tank; the supporting leg structure is a T-shaped structure.

[0011] Furthermore, the agent adding device includes: a PAM adding device and a PAC adding device;

[0012] Among them, the PAM adding device is connected to the water inlet coil through a pipeline, and the PAC adding device is connected to the water inlet pipe through a pipeline;

[0013] The water inlet pipe is provided with a dosing mixer, and the dosing mixer is cooperatively connected with the PAC adding device.

[0014] Furthermore, the support frame structure includes: two pipes vertically arranged at the bottom of the clean water tank, wherein the water inlet coil is spirally wound around the outside of the two pipes.

[0015] Furthermore, an inclined pipe is provided on the inner wall of the clean water tank, and the inclined pipe is located between the water inlet coil and the water outlet channel.

[0016] Furthermore, valves are provided on the water outlet pipe, water inlet pipe and sewage discharge pipe.

[0017] In another aspect, the present invention provides a method for using an unpowered cyclone sedimentation tank, the method comprising:

[0018] Step 1: Raw water enters from the water inlet pipe, and at the same time, the PAC agent adding device is activated to add the PAC agent into the raw water to mix it with the raw water;

[0019] Step 2: The PAM agent adding device is activated to add the PAM agent into the raw water mixed with the PAC agent, and then enters the water inlet coil. The raw water mixed with the agent slowly moves upward in the curved spiral water inlet coil, so that the PAC agent and the PAM agent are mixed and reacted, and flocs begin to grow in this process;

[0020] Step 3: The raw water mixed with PAC and PAM flows out from the upper end of the water inlet coil in a jet-like shape and flows from top to bottom to the bottom of the clean water tank. During this process, the flocs grow normally.

[0021] Step 4: The water level in the clean water tank rises. During this process, the raw water at the bottom of the clean water tank is flushed by the raw water flowing out from the upper end of the water inlet pipe coil, causing the raw water in the clean water tank to tumble, further allowing the added chemicals to be fully mixed. At the same time, the flocs gradually grow and eventually form a suspended layer, floating above the raw water.

[0022] Step 5: The sludge and suspended matter in the raw water adhere to the suspended layer. When the accumulation increases, the sludge falls to the bottom of the clean water tank under the action of gravity and is discharged from the sewage pipe. The filtered water passes through the suspended layer, passes through the inclined pipe, stays in the outlet channel, and then flows out from the outlet pipe.

[0023] Furthermore, the bending angle of the water inlet coil at the bending point on the support frame is between 15° and 30°.

[0024] Furthermore, the pressure of the raw water is 0.1Mpa-0.2Mpa; the distance between the suspension layer and the port at the upper end of the water inlet coil is 30cm-50cm.

[0025] Advantages of the present invention:

[0026] First, in this scheme, the water inlet coil is set on the support frame in a spiral manner. When the sewage flows through the water inlet coil, the residence time of the sewage in the water inlet coil can be increased. In this process, the reagent adding device is set to fully mix the reagent with the sewage, so that the added reagent forms a suspended layer, and the suspended layer accumulates under the inclined tube. When the sewage passes through the suspended layer, the sludge adheres to the suspended layer, so that the suspended layer plays a filtering role, performs a primary filtration, and then the water passing through is filtered twice through the set inclined tube, so that clean water is guaranteed to flow out of the outlet channel;

[0027] Secondly, in this scheme, the water inlet coil and the reagent adding device are set to replace the stirring device and the mixing device, thereby saving costs, reducing the loss of electric energy, and can perform multiple filtration of sewage through the suspended layer and the inclined tube, thereby ensuring that the sewage filtration process is thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0030] Reference numerals:

[0031] 1 is a clean water tank, 2 is a sewage pipe, 3 is an outlet channel, 4 is an inlet pipe, 5 is an outlet pipe, 6 is an inlet coil, 7 is a PAM adding device, 8 is a PAC adding device, 9 is a dosing mixer, and 10 is an inclined pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] Embodiment 1

[0034] See also Figure 1 ,like Figure 1 As shown, a non-powered cyclone sedimentation tank comprises: a clean water tank 1, a sewage pipe 2 arranged at the bottom of the clean water tank 1, a cyclone device and a water outlet channel 3 arranged in the clean water tank 1, a water inlet pipe 4 arranged at one side of the clean water tank 1, and a reagent adding device connected to the cyclone device and the water inlet pipe 4 respectively;

[0035] The water outlet channel 3 is arranged above the cyclone device and connected to the inner wall of the clean water tank 1, and a water outlet pipe 5 is arranged at the connection between the water outlet channel 3 and the clean water tank 1;

[0036] The cyclone device comprises: a support frame arranged at the bottom of the clean water tank 1 and a water inlet coil 6 arranged on the support frame;

[0037] Among them, the water inlet coil 6 is connected to the water inlet pipe 4, and the water inlet coil 6 is connected to the reagent adding device; the port of the water inlet coil 6 is located at the center of the clean water tank 1, and the port part of the water inlet coil 6 is arranged from top to bottom.

[0038] It should be noted that the main invention of this scheme is to replace the existing sludge scraping device and stirring device with the water inlet coil and the chemical adding device, and then add flocculant-type chemicals into the sewage through the chemical adding device, and use the spirally arranged water inlet coil to slow down the flow rate of the sewage, so that the flocculant can grow normally in the sewage. When the flocculant grows into a suspended layer, it accumulates under the inclined tube and bonds the sludge and suspended particles in the sewage. When the gravity of the accumulated sludge is greater than the bonding force with the suspended layer, the sludge falls from the suspended layer to the bottom of the clean water tank and is then discharged from the sewage pipe.

[0039] In addition, when individual large particles pass through the suspended layer, the inclined tube can perform secondary filtration to filter the large particles of foreign matter that pass through the suspended layer, so that the foreign matter stays in the inclined tube. When the foreign matter accumulates, the effect of gravity will cause the foreign matter to slide down, and eventually pass through the suspended layer, fall to the bottom of the clean water tank, and be discharged from the sewage pipe.

[0040] In one embodiment of the present invention, the bottom structure of the clean water tank 1 is a conical structure; thus, the concentration of sludge is increased, thereby facilitating the removal of sludge.

[0041] In one embodiment of the present invention, a group of supporting legs is provided at the bottom of the water purification tank 1; the supporting leg structure is a T-shaped structure.

[0042] In one embodiment of the present invention, the agent adding device comprises: a PAM adding device 7 and a PAC adding device 8;

[0043] Wherein, the PAM adding device 7 is connected to the water inlet coil 6 through a pipeline, and the PAC adding device 8 is connected to the water inlet pipe 4 through a pipeline;

[0044] A dosing mixer 9 is provided on the water inlet pipe 4 , and the dosing mixer 9 is cooperatively connected with the PAC adding device 8 .

[0045] It should be noted that polyacrylamide is referred to as PAM, commonly known as flocculant or coagulant, with the molecular formula: +CH2-CHn. It is a linear high molecular polymer. The solid product appears as a white or slightly yellow powder, and the liquid is a colorless viscous colloid. It is easily soluble in water and easily decomposes when the temperature exceeds 120°C.

[0046] Polyacrylamide characteristics:

[0047] PAM is a water-soluble high molecular polymer that is insoluble in most organic solvents. It has good flocculation properties and can reduce frictional resistance between liquids.

[0048] Introduction to polyaluminium chloride: Polyaluminium chloride is referred to as PAC. It is also commonly known as basic aluminium chloride or coagulant. It is a water-soluble inorganic high molecular polymer between ALCL3 and AL(OH)3. The chemical test is [AL2(OH)NCL6-NLm], where m represents the degree of polymerization and n represents the neutrality of the PAC product. The color is yellow or light yellow, dark brown or dark grey resinous solid. The product has strong bridging adsorption performance. During the hydrolysis process, physical and chemical processes such as coagulation, adsorption and precipitation occur.

[0049] The purpose of setting up the PAM and PAC agent addition device is to allow the PAM and PAC agents to react to generate flocs. The virtual flocs accumulate and increase to form a suspended layer, and the suspended layer can filter the suspended matter and foreign matter in the sewage, thereby playing the role of a filter.

[0050] In one embodiment of the present invention, the support frame structure includes: two pipes vertically arranged at the bottom of the clean water tank 1, wherein the water inlet coil 6 is spirally wound around the outside of the two pipes.

[0051] It should be noted that the main functions of the water inlet coil are: first, to provide a reaction container for the mixing of PAM and PAC agents; second, the water inlet coil is set in a spiral shape, which delays the time for sewage to flow out from the upper end of the water inlet coil and increases the residence time of sewage in the water inlet coil, so that PAM and PAC agents are fully mixed, making the floc reproduction rate faster. When too much accumulation occurs, a suspended layer is formed, floating on the surface of the sewage.

[0052] In one embodiment of the present invention, an inclined tube 10 is provided on the inner wall of the clean water tank 1, and the inclined tube 10 is located between the water inlet coil 6 and the outlet channel; in this way, the inclined tube can be used to perform secondary filtration on the sludge and suspended matter that pass through the suspended layer, so that the water collected in the outlet channel meets the clean water standard.

[0053] In one embodiment of the present invention, valves are provided on the water outlet pipe 5 , the water inlet pipe 4 and the sewage discharge pipe 4 .

[0054] Embodiment 2

[0055] The present invention provides a method for using a non-powered cyclone sedimentation tank, comprising the steps of: 1. raw water enters from a water inlet pipe, and at the same time, a PAC agent adding device is activated to add PAC agent into the raw water to mix the PAC agent with the raw water;

[0056] Step 2: The PAM agent adding device is activated to add the PAM agent into the raw water mixed with the PAC agent, and then enters the water inlet coil. The raw water mixed with the agent slowly moves upward in the curved spiral water inlet coil, so that the PAC agent and the PAM agent are mixed and reacted, and flocs begin to grow in this process;

[0057] Step 3: The raw water mixed with PAC and PAM flows out from the upper end of the water inlet coil in a jet-like shape and flows from top to bottom to the bottom of the clean water tank. During this process, the flocs grow normally.

[0058] Step 4: The water level in the clean water tank rises. During this process, the raw water at the bottom of the clean water tank is flushed by the raw water flowing out from the upper end of the water inlet pipe coil, causing the raw water in the clean water tank to tumble, further allowing the added chemicals to be fully mixed. At the same time, the flocs gradually grow and eventually form a suspended layer, floating above the raw water.

[0059] Step 5: The sludge and suspended matter in the raw water adhere to the suspended layer. When the accumulation increases, the sludge falls to the bottom of the clean water tank under the action of gravity and is discharged from the sewage pipe. The filtered water passes through the suspended layer, passes through the inclined pipe, stays in the outlet channel, and then flows out from the outlet pipe.

[0060] In one embodiment of the present invention, the bending angle of the water inlet coil at the bend on the support frame is between 15° and 30°.

[0061] In one embodiment of the present invention, the pressure of the raw water is 0.1Mpa-0.2Mpa; the distance between the suspension layer and the port at the upper end of the water inlet coil is 30cm-50cm.

[0062] It should be noted that the water inlet coil is arranged in a spiral manner, and the upper port is arranged from top to bottom. The main functions are: first, to extend the residence time of raw water in the water inlet coil, so that the added reagents can be preliminarily mixed; second, the water inlet coil drains the raw water, so that the raw water flows through the water inlet coil in a rotating manner, and flows out at a certain angle when flowing out of the upper port of the water inlet coil. In this way, the water source is first concentrated at the bottom of the clean water tank, and the water level of the water source slowly rises. In this process, the raw water flowing out of the upper port of the water inlet coil flushes the raw water in the clean water tank, forming a tumbling state, thereby further allowing the added reagents to be fully mixed, thereby facilitating the growth of flocs and promoting the formation of a suspended layer.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-powered cyclone sedimentation tank, characterized in that: include: A clean water tank, a sewage pipe arranged at the bottom of the clean water tank, a cyclone device and a water outlet channel arranged in the clean water tank, a water inlet pipe arranged at one side of the clean water tank, and a reagent adding device connected to the cyclone device and the water inlet pipe respectively; The water outlet channel is arranged above the cyclone device and connected to the inner wall of the clean water tank, and a water outlet pipe is arranged at the connection between the water outlet channel and the clean water tank; The cyclone device comprises: a support frame arranged at the bottom of the clean water tank and a water inlet coil arranged on the support frame; The water inlet coil is connected to the water inlet pipe, and the water inlet coil is connected to the reagent adding device; the port of the water inlet coil is located at the center of the clean water tank, and the port part of the water inlet coil is arranged from top to bottom; A group of supporting legs is provided at the bottom of the clean water tank, and the supporting legs are in a T-shaped structure; The support frame structure comprises: two pipes vertically arranged at the bottom of the clean water tank, wherein the water inlet coil is spirally wound around the outside of the two pipes; An inclined pipe is provided on the inner wall of the clean water tank, and the inclined pipe is located between the water inlet coil and the water outlet channel; The spirally arranged water inlet coil slows down the flow rate of sewage, allowing the flocculant to grow normally in the sewage. When the flocculant grows into a suspended layer, it accumulates under the inclined tube and bonds the sludge and suspended particles in the sewage. When the gravity of the accumulated sludge is greater than the bonding force with the suspended layer, the sludge falls from the suspended layer to the bottom of the clean water tank. When individual large particles pass through the suspended layer, the inclined tube is set for secondary filtration to filter the large particles that pass through the suspended layer, so that the foreign matter stays in the inclined tube. When there are too many accumulated foreign matter, the effect of gravity will cause the foreign matter to slide down, and finally pass through the suspended layer, fall to the bottom of the clean water tank, and be discharged from the sewage pipe.

2. The unpowered cyclone sedimentation tank according to claim 1, characterized in that: The bottom structure of the clean water tank is a conical structure.

3. The unpowered cyclone sedimentation tank according to claim 1, characterized in that: The drug adding device comprises: a PAM adding device and a PAC adding device; Among them, the PAM adding device is connected to the water inlet coil through a pipeline, and the PAC adding device is connected to the water inlet pipe through a pipeline; The water inlet pipe is provided with a dosing mixer, and the dosing mixer is cooperatively connected with the PAC adding device.

4. The unpowered cyclone sedimentation tank according to claim 3, characterized in that: The water outlet pipe, the water inlet pipe and the sewage discharge pipe are all provided with valves.

5. A method for using an unpowered cyclone sedimentation tank, using the unpowered cyclone sedimentation tank according to any one of claims 1 to 4, characterized in that: The method comprises: Step 1: Raw water enters from the water inlet pipe, and at the same time, the PAC agent adding device is activated to add the PAC agent into the raw water to mix it with the raw water; Step 2: The PAM agent adding device is activated to add the PAM agent into the raw water mixed with the PAC agent, and then enters the water inlet coil. The raw water mixed with the agent slowly moves upward in the curved spiral water inlet coil, so that the PAC agent and the PAM agent are mixed and reacted, and flocs begin to grow in this process; Step 3: The raw water mixed with PAC and PAM flows out from the upper end of the water inlet coil in a jet-like shape and flows from top to bottom to the bottom of the clean water tank. During this process, the flocs grow normally. Step 4: The water level in the clean water tank rises. During this process, the raw water at the bottom of the clean water tank is flushed by the raw water flowing out from the upper end of the water inlet pipe coil, so that the raw water in the clean water tank forms a rolling state, further allowing the added reagents to be fully mixed. At the same time, the flocs gradually grow and eventually form a suspended layer, floating above the raw water; Step 5: The sludge and suspended matter in the raw water adhere to the suspended layer. When the accumulation increases, the sludge falls to the bottom of the clean water tank under the action of gravity and is discharged from the sewage pipe. The filtered water passes through the suspended layer, passes through the inclined pipe, stays in the outlet channel, and then flows out from the outlet pipe.

6. The method for using the unpowered cyclone sedimentation tank according to claim 5, characterized in that: The bending angle of the water inlet coil at the bending point on the support frame is between 15° and 30°.

7. The method for using the unpowered cyclone sedimentation tank according to claim 6, characterized in that: The pressure of the raw water is 0.1Mpa-0.2Mpa; the distance between the suspension layer and the port at the upper end of the water inlet coil is 30cm-50cm.

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