Air-oxygen calcium blocking device for pipeline

Abstract

The utility model relates to the technical field of sewage treatment, and provides an air-oxygen calcium blocker for a pipeline, which comprises a shell main body, two ends of the shell main body are respectively communicated with a water inlet pipe and a water outlet pipe, the joint of the water inlet pipe and the shell main body is communicated with an air inlet pipe, and a calcium blocking device is fixed in the shell main body. The calcium blocking device comprises an electrode plate group formed by arranging a plurality of electrode plates, a connecting steel frame is fixed at the top of the electrode plate group, and a connecting ring is fixed at the bottom of the electrode plate group; the top of each electrode plate is fixed to the connecting steel frame, and the bottom of each electrode plate is fixed to the connecting ring. The calcium blocking device has the beneficial effects that matched gas is jetted into the water inlet pipe from the gas inlet pipe through the calcium blocking device, so that calcium ions in sewage entering the calcium blocking device react with carbonate ions under the action of oxygen, polarized ions are formed, and an easily adsorbed calcium carbonate combination is generated on the surface of the electrode plate; the quantity of calcium ions in water is reduced, and calcification and scaling of a conveying pipeline are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and in particular to an air-oxygen calcium blocker for a pipeline. Background Art

[0002] In the pulp and paper production process, waste paper raw materials and the coating and filling processes of papermaking contain or use a large amount of calcium carbonate, so calcium carbonate is widely present in pulp and papermaking wastewater. Due to the action of microorganisms, organic matter in wastewater is easily converted into volatile fatty acids and other substances, which react with calcium carbonate, causing calcium to be converted from a precipitated state to an ionic state. Calcium ions enter the papermaking wastewater along with the waste paper. As the utilization rate of domestic waste paper recycling increases, the concentration of calcium ions in papermaking wastewater also increases.

[0003] When the concentration of calcium ions in papermaking wastewater increases, it is easy to cause scaling of the water pipes, and also cause calcification of the activated sludge aerobic aeration system, scaling on the aerator surface, making the aeration effect of the aerobic pool worse, reducing the dissolved oxygen content, causing a decline in biochemical treatment capacity, pipe blockage, etc. Therefore, after a long period of use, calcification and scaling may occur inside the pipes. If the scaling is serious, the pipe diameter will become smaller, and sewage cannot enter or be discharged smoothly. This part of the pipe needs to be replaced, and replacing the pipe will greatly affect the normal production progress, so it is necessary to carry out anti-calcification treatment inside the pipe. Utility Model Content

[0004] The utility model provides an air-oxygen calcium inhibitor for pipelines, which utilizes the calcium inhibitor to remove calcium from water and prevent calcification and scaling of pipelines.

[0005] To this end, the present application provides an air-oxygen calcium inhibitor for pipelines, and the technical solution adopted is as follows:

[0006] It includes a shell body, both ends of which are respectively connected with a water inlet pipe and a water outlet pipe, the connection between the water inlet pipe and the shell body is connected with an air inlet pipe, a calcium blocking device is fixed inside the shell body, the calcium blocking device includes an electrode plate group formed by a plurality of electrode plates arranged at intervals, a connecting steel frame is fixed on the top of the electrode plate group, and a connecting ring is fixed on the bottom; the top of each electrode plate is fixed on the connecting steel frame, and the bottom is fixed on the connecting ring; a supporting orifice plate is fixed on the top of the calcium blocking device, a connecting hole and a clamping groove are provided on the supporting orifice plate, the number of the connecting holes is several, and the connecting steel frame on the top of the calcium blocking device can be clamped into the inside of the clamping groove.

[0007] A further technical solution is that the shell body includes shell one, a main shell and shell two which are connected in sequence, and shell one and shell two are truncated cone-shaped tubular structures. The opening ends with smaller diameters of shell one and shell two are respectively connected to the water inlet pipe and the water outlet pipe, and the opening ends with larger diameters are respectively connected to the two ends of the main shell, and the calcium blocking device is fixed inside the main shell.

[0008] A further technical solution is that the water inlet pipe and shell one are fixedly connected via flange group one, the shell one and the main shell are fixedly connected via flange group two, the main shell and shell two are fixedly connected via flange group three, and the shell two and the water outlet pipe are fixedly connected via flange group four.

[0009] A further technical solution is that the electrode plate includes an anode plate and a cathode plate, and a plurality of anode plates and cathode plates are alternately arranged to form an electrode plate group, and the electrode plate group is electrically connected to a DC power supply, wherein the positive pole of the DC power supply is connected to the anode plate, and the negative pole of the DC power supply is connected to the cathode plate.

[0010] A further technical solution is that the flange group 2 includes two single flanges 2 which are fixedly connected to the shell 1 and the main shell respectively, and the supporting orifice plate is fixed between the two single flanges 2.

[0011] A further technical solution is that the flange group three includes two single flanges three respectively fixedly connected to the main shell and the second shell, and a support flange fixed therebetween, wherein the aperture of the support flange is smaller than the diameter of the connecting ring.

[0012] A further technical solution is that an observation window is provided on the main shell.

[0013] The working principle and beneficial effects of this application are:

[0014] 1. By installing a calcium blocking device in the pipeline, and coordinating with compressed air to enter the water inlet pipe from the air inlet pipe, the calcium ions generated in the sewage entering the calcium blocking device react with carbonate ions and other substances to form polarized ions and generate calcium carbonate combinations that are not easily adsorbed on the surface of the electrode plate, thereby reducing the number of calcium ions in the pipeline and preventing calcification and scaling of the water transport pipeline. Compared with traditional ion membranes, it has a long service life and avoids the increase in operating costs caused by replacing core components. No reagents are added during the adsorption process of the electrode plate, and the components contained in the discharged concentrated water are all from the raw water, and the system itself does not produce new emissions. The concentrated water can be discharged directly in compliance with the standards without further treatment.

[0015] 2. A supporting orifice plate is provided at the water inlet of the calcium blocking device, i.e., at the second flange group. When air is introduced into the supporting orifice plate, the contact area between the gas and the sewage is increased, the oxidation reaction is accelerated, the binding rate of calcium ions is further increased, and the calcium removal effect of the calcium blocking device in the water is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of the calcium blocking device described in the embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the structure of the flange assembly 1 described in the embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of flange assembly 2 according to an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of flange group three described in an embodiment of the present application.

[0022] In the figure: 10, water inlet pipe; 20, water outlet pipe; 30, air inlet pipe; 1, calcium blocking device; 11, electrode plate group; 12, connecting steel frame; 13, connecting ring; 2, shell one; 3, main shell; 4, shell two; 5, flange group one; 6, flange group two; 61, single body flange two; 62, supporting orifice plate; 621, connecting hole; 622, snap-in groove; 7, flange group three; 71, single body flange three; 72, supporting flange; 8, flange group four; 9, observation window. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of 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.

[0024] like Figure 1-Figure 5As shown, an air-oxygen calcium blocker for a pipeline comprises a shell body, wherein two ends of the shell body are respectively connected with a water inlet pipe 10 and a water outlet pipe 20, wherein the connection between the water inlet pipe 10 and the shell body is connected with an air inlet pipe 30, wherein a calcium blocking device 1 is fixed inside the shell body, wherein the calcium blocking device 1 comprises an electrode plate group 11 formed by a plurality of electrode plates arranged at intervals, wherein a connecting steel frame 12 is fixed on the top of the electrode plate group 11, and a connecting ring 13 is fixed on the bottom; the top of each electrode plate is fixed on the connecting steel frame 12, and the bottom is fixed on the connecting ring 13; a supporting orifice plate 62 is fixed on the top of the calcium blocking device 1, wherein a connecting hole 621 and a clamping groove 622 are provided on the supporting orifice plate 62, wherein the number of the connecting holes 621 is several, and the connecting steel frame 12 on the top of the calcium blocking device 1 can be clamped into the inside of the clamping groove 622.

[0025] like Figure 1 As shown, the shell body includes a shell 1 2, a main shell 3 and a shell 2 4 which are connected in sequence. The shell 1 2 and the shell 2 4 are truncated cone-shaped tubular structures. The opening ends of the shell 1 2 and the shell 2 4 with smaller diameters are respectively connected to the water inlet pipe 10 and the water outlet pipe 20, and the opening ends with larger diameters are respectively connected to the two ends of the main shell 3. The calcium blocking device 1 is fixed inside the main shell 3. Therefore, when the raw water enters from the water inlet pipe 10, it first passes through the shell 1 2 to expand the water inlet diameter, increase the contact area between the raw water and the calcium blocking device 1, and improve the electrode adsorption efficiency. After the adsorption is completed, the water outlet diameter is reduced through the shell 2 4 and enters the next pipeline through the water outlet pipe 20.

[0026] The water inlet pipe 10 and shell 2 are fixedly connected via flange group 1 5, the shell 1 2 and main shell 3 are fixedly connected via flange group 2 6, the main shell 3 and shell 2 4 are fixedly connected via flange group 3 7, and the shell 2 4 and water outlet pipe 20 are fixedly connected via flange group 4 8.

[0027] like Figure 4 As shown, the flange group 2 6 includes two single-body flanges 2 61 respectively fixedly connected to the housing 1 2 and the main housing 3, and the supporting orifice plate 62 is fixed between the two single-body flanges 2 61. After the gas is introduced from the air inlet pipe 30, it enters the main housing 3 through the supporting orifice plate 62. The connecting holes 621 provided on the supporting orifice plate 62 increase the contact area between the gas and the sewage when the gas passes through, thereby enhancing the decalcification effect of the calcium blocking device 1. And the number of the connecting holes 621 is a sufficient number, so that when the air is introduced, the contact area between the air and the sewage is increased, the binding rate of calcium ions is further improved, and the decalcification effect of the calcium blocking device 1 in water is enhanced.

[0028] Furthermore, the snap-in groove 622 on the supporting orifice plate 62 can accommodate the connecting steel frame 12 to snap in. Figure 5As shown, the flange group three 7 includes two single flanges three 71 fixedly connected to the main housing 3 and the housing two 4 respectively, and a support flange 72 fixed therebetween, wherein the aperture of the support flange 72 is smaller than the diameter of the connection ring 13. Thus, the connection ring 13 at the bottom of the calcium blocking device 1 can abut against the surface of the support flange 72, and cooperate with the clamping groove 622 on the support orifice plate 62 to clamp and fix the calcium blocking device 1 inside the main housing 3, and can effectively prevent the calcium blocking device 1 from moving when the system is running. The calcium blocking device 1 can also be disassembled and cleaned conveniently and quickly by disassembling the flange group two 6 and the flange group three 7, so as to facilitate the later maintenance of the entire system.

[0029] The working process and principle of this embodiment are as follows: raw water enters from the water inlet pipe 10, flows through the shell 1 2 and enters the calcium blocking device 1 of the main shell 3. At the same time, the air inlet pipe 30 is ventilated at the flange group 1 5, the power is turned on, and the DC power supply provides DC power. The anode plate is connected to the positive electrode, and the cathode plate is connected to the negative electrode. After the raw water enters the calcium blocking device 1, it enters the space formed by the electrode plate group 11, enters from one end, and flows out from the other end. During the reaction process, a large amount of hydroxide ions and the like are generated on the cathode. With the participation of hydroxide ions, a reduction reaction occurs on the surface of the cathode plate, synthesizing calcium carbonate, magnesium hydroxide and other insoluble substances, and attaching to the cathode plate, while an oxidation reaction occurs on the anode plate, generating a large amount of active oxidizing substances, thereby obtaining low-salinity outlet water and flowing through the shell 2 4 and finally flowing out from the outlet pipe 20.

[0030] By setting a calcium blocking device 1 in the pipeline, the gas is jetted from the air inlet pipe 30 into the water inlet pipe 10, so that the calcium ions generated in the sewage entering the calcium blocking device 1 react with carbonate ions and other substances to form polarized ions and generate calcium carbonate complexes that are not easily adsorbed on the surface of the electrode plate, thereby reducing the number of calcium ions in the pipeline and preventing calcification and scaling of the water transport pipeline. Compared with traditional ion membranes, it has a long service life and avoids the increase in operating costs caused by replacing core components. No reagents are added during the adsorption process of the electrode plate, and the components contained in the discharged concentrated water are all from the raw water, and the system itself does not produce new emissions. The concentrated water can be discharged directly in compliance with the standards without further treatment.

[0031] In addition, an observation window 9 is provided on the main housing 3. Therefore, the scaling condition on the surface of the cathode plate can be directly observed on the side of the main housing 3 to judge whether the calcium blocking device 1 needs to be cleaned. When cleaning, it is only necessary to disassemble the flange group 2 6 and the flange group 3 7, and take out the calcium blocking device 1 for cleaning. The disassembly and assembly are simple and fast, and the decalcification effect is obvious, which improves the efficiency of sewage treatment and saves the operating cost. It can be installed and applied efficiently and quickly in daily operations, and has a wide range of applications.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An air-oxygen calcium inhibitor for a pipeline, characterized in that: The invention comprises a shell body, wherein two ends of the shell body are respectively connected to a water inlet pipe (10) and a water outlet pipe (20), and the connection between the water inlet pipe (10) and the shell body is connected to an air inlet pipe (30). A calcium blocking device (1) is fixed inside the shell body, and the calcium blocking device (1) comprises an electrode plate group (11) formed by a plurality of electrode plates arranged at intervals, and a connecting steel frame (12) is fixed on the top of the electrode plate group (11), and a connecting ring (13) is fixed on the bottom; and each electrode plate is fixed on the top of the connecting steel frame (12), and fixed on the bottom of the connecting ring (13); A supporting orifice plate (62) is fixed on the top of the calcium blocking device (1), and a connecting hole (621) and a clamping groove (622) are provided on the supporting orifice plate (62). The connecting holes (621) are multiple in number, and the connecting steel frame (12) on the top of the calcium blocking device (1) can be clamped into the inside of the clamping groove (622).

2. The air-oxygen calcium blocker for pipelines according to claim 1, characterized in that: The shell body comprises a shell body 1 (2), a main shell body (3) and a shell body 2 (4) which are connected in sequence. The shell body 1 (2) and the shell body 2 (4) are truncated cone-shaped tubular structures. The opening ends with smaller diameters of the shell body 1 (2) and the shell body 2 (4) are respectively connected to the water inlet pipe (10) and the water outlet pipe (20), and the opening ends with larger diameters are respectively connected to the two ends of the main shell body (3). The calcium blocking device (1) is fixed inside the main shell body (3).

3. The air-oxygen calcium blocker for pipelines according to claim 2, characterized in that: The water inlet pipe (10) and the shell one (2) are fixedly connected via a flange group one (5), the shell one (2) and the main shell (3) are fixedly connected via a flange group two (6), the main shell (3) and the shell two (4) are fixedly connected via a flange group three (7), and the shell two (4) and the water outlet pipe (20) are fixedly connected via a flange group four (8).

4. The air-oxygen calcium blocker for pipelines according to claim 1, characterized in that: The electrode plates comprise anode plates and cathode plates, and a plurality of anode plates and cathode plates are alternately arranged to form an electrode plate group (11). The electrode plate group (11) is electrically connected to a direct current power source, wherein the positive electrode of the direct current power source is connected to the anode plate, and the negative electrode of the direct current power source is connected to the cathode plate.

5. The air-oxygen calcium inhibitor for pipelines according to claim 3, characterized in that: The flange set 2 (6) comprises two single flanges 2 (61) respectively fixedly connected to the shell 1 (2) and the main shell (3), and the supporting orifice plate (62) is fixed between the two single flanges 2 (61).

6. The air-oxygen calcium blocker for pipelines according to claim 3, characterized in that: The flange group three (7) comprises two single flanges three (71) respectively fixedly connected to the main shell (3) and the second shell (4), and a support flange (72) fixed between the two, wherein the aperture of the support flange (72) is smaller than the diameter of the connection ring (13).

7. The air-oxygen calcium blocker for pipelines according to claim 2, characterized in that: An observation window (9) is provided on the main housing (3).

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