First-stage and second-stage switchable test structure of hardness and silicon removal reaction tank

Abstract

The utility model discloses a first-stage and second-stage switchable test structure of a hardness and silicon removal reaction tank. Comprising a first-stage silicon removal tank, a first-stage hardness removal tank, a second-stage silicon removal sedimentation tank, a second-stage hardness removal sedimentation tank, a silicon removal water production tank, a hardness removal water production tank, a water inlet pipeline, a first-stage silicon removal water delivery pipeline, a first-stage hardness removal water delivery pipeline, a second-stage silicon removal water delivery pipeline and a second-stage hardness removal water delivery pipeline. The water inlet pipeline is used for conveying to-be-treated wastewater to the first-stage silicon removal tank or the first-stage hardness removal tank; the first-stage silicon removal water delivery pipeline is used for delivering wastewater to the first-stage hardness removal tank or the second-stage silicon removal sedimentation tank; the first-stage hardness removal water conveying pipeline is used for conveying the wastewater to the first-stage silicon removal tank or the second-stage hardness removal sedimentation tank; the second-stage silicon removal water conveying pipeline is used for conveying produced water to the first-stage hardness removal tank or a preset water storage point; the second-stage hardness removal water conveying pipeline is used for conveying produced water to the first-stage silicon removal tank or a preset water storage point. According to the device, the optimal reaction sequence of primary / secondary hardness and silicon removal can be tested, and the operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a primary and secondary switchable test structure for a hardening and silicon removal reaction tank. Background Technology

[0002] Currently, industrial production generates a large amount of industrial wastewater, which may contain a large number of metal ions, organic matter, calcium, magnesium and silicon scaling factors, suspended solids, etc. Therefore, removing hardness and silicon from industrial wastewater is of great significance for protecting the environment, improving the recycling rate of water resources, and ensuring the stable operation of industrial equipment.

[0003] Hardness removal (softening): refers to the removal of calcium ions (Ca) from water. 2+ ) and magnesium ions (Mg 2+ These two ions are the main components causing water hardness. Hard water has many impacts on industrial production and domestic water use. For example, in heat exchange systems, hard water can cause scaling, reduce thermal efficiency, and increase equipment maintenance costs. Common methods for removing hardness include: ion exchange (replacing calcium and magnesium ions in the water with ion exchange resins), chemical precipitation (adding chemicals (such as lime or soda ash) to the water to form insoluble precipitates and remove calcium and magnesium ions), and distillation (evaporating water and then condensing it to remove all dissolved solids, including hardness ions).

[0004] Silicon removal refers to the removal of silicic acid and its salts from water. Although the content of silicic acid in water is not high, when water is heated, it forms insoluble silica scale. This scale is hard and difficult to remove, and it can deposit in equipment such as boilers and heat exchangers, reducing thermal efficiency and even causing equipment damage. Commonly used silicon removal methods include: chemical coagulation (adding a coagulant to the water to form flocculated precipitates of silicic acid), ion exchange (using specific ion exchange resins to remove silicate ions from the water), and pretreatment and reverse osmosis (removing silicon from water through pretreatment (such as adjusting pH by adding acid) and reverse osmosis membrane technology).

[0005] However, the concentrations of calcium and magnesium ions and calcium, magnesium, and silicon scaling factors vary among different industrial wastewaters. Therefore, different industrial wastewaters require different reagent dosages. For example, industrial wastewater with relatively higher calcium and magnesium ion concentrations requires increased reagent dosage and a longer reaction time. Since industrial wastewater treatment volumes are large, excessive reagent dosage significantly increases costs, while insufficient dosage affects hardening and silicon removal efficiency. Furthermore, to improve hardening and silicon removal efficiency, primary and secondary reaction tanks and sedimentation tanks can be set up. The optimal hardening and silicon removal sequence varies for each type of industrial wastewater; for example, primary silicon removal followed by secondary silicon removal, then primary hardening removal followed by secondary hardening removal, or primary silicon removal followed by primary hardening removal, then secondary hardening and silicon removal separately. Therefore, the reaction sequence for each type of industrial wastewater needs to be tested to find the optimal sequence to ensure wastewater treatment efficiency and reduce costs. However, existing technologies lack testing structures for this purpose.

[0006] Therefore, it is necessary to provide a first- and second-stage switchable test structure for hardening and silicon removal reaction cells to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this invention is to provide a primary and secondary switchable testing structure for a hardening and silicon removal reaction tank, aiming to solve the problem of how to determine the optimal reaction sequence for silicon and hardening removal for each type of industrial wastewater, thereby ensuring wastewater treatment effect and reducing treatment costs.

[0008] To achieve the above objectives, this utility model provides a switchable primary and secondary testing structure for a hardening and silicon removal reaction cell, comprising:

[0009] Primary silicon removal tank, primary hardening removal tank, secondary silicon removal sedimentation tank, secondary hardening removal sedimentation tank;

[0010] A silicon removal product water tank, which is used to receive the product water discharged from the secondary silicon removal sedimentation tank;

[0011] The hardness removal product water tank is used to receive the product water discharged from the secondary hardness removal sedimentation tank;

[0012] The inlet pipeline is used to transport wastewater to be treated to the primary silicon removal tank or the primary hardening removal tank.

[0013] A primary silicon removal water supply pipeline is used to transport wastewater treated in the primary silicon removal tank to the primary silicon removal tank or the secondary silicon removal sedimentation tank.

[0014] A primary hardening removal water transmission pipeline is used to transport wastewater treated in the primary hardening removal tank to the primary silicon removal tank or the secondary hardening removal sedimentation tank.

[0015] A secondary desiliconization water supply pipeline is used to transport the water produced by the desiliconization water tank to the primary hardening tank or a predetermined water storage point.

[0016] A secondary hardness removal water supply pipeline is used to transport the produced water from the hardness removal water tank to the primary silica removal tank or a predetermined water storage point.

[0017] In a preferred embodiment, the water inlet pipeline includes a main water inlet pipeline and a first water inlet branch and a second water inlet branch, both connected to the main water inlet pipeline; the first water inlet branch is connected to the primary silica removal tank, and the second water inlet branch is connected to the primary hardness removal tank; the main water inlet pipeline is equipped with a water inlet pump, which is used to pump the wastewater to be treated in the main water inlet pipeline into the first water inlet branch and the second water inlet branch.

[0018] In a preferred embodiment, the inlet main is provided with an inlet pump bypass connected in parallel with the inlet pump; the inlet pump bypass is used to return a portion of the wastewater to be treated pumped out by the inlet pump to the front end of the inlet main when the inlet pump is running.

[0019] In a preferred embodiment, the primary desiliconization water supply pipeline includes a primary desiliconization trunk line with one end connected to the primary desiliconization tank, a first primary desiliconization branch line, and a second primary desiliconization branch line, both connected to the side of the primary desiliconization trunk line away from the primary desiliconization tank. The end of the first primary desiliconization branch line away from the primary desiliconization trunk line is connected to the primary desiliconization tank, and the end of the second primary desiliconization branch line away from the primary desiliconization trunk line is connected to the secondary desiliconization sedimentation tank. The primary desiliconization trunk line is equipped with a desiliconization pump, which is used to pump the wastewater treated by the primary desiliconization tank out.

[0020] In a preferred embodiment, the primary hardening removal water supply pipeline includes a primary hardening removal main line with one end connected to the primary hardening removal tank, a first primary hardening removal branch line, and a second primary hardening removal branch line, both connected to the side of the primary hardening removal main line away from the primary hardening removal tank. The end of the first primary hardening removal branch line away from the primary hardening removal main line is connected to the primary silica removal tank, and the end of the second primary hardening removal branch line away from the primary hardening removal main line is connected to the secondary hardening removal sedimentation tank. The primary hardening removal main line is equipped with a hardening removal pump, which is used to pump the wastewater treated by the primary hardening removal tank out.

[0021] In a preferred embodiment, the primary desiliconization trunk line is provided with a desiliconization pump bypass connected in parallel with the desiliconization pump; the desiliconization pump bypass is used to return a portion of the wastewater pumped by the desiliconization pump to the front end of the primary desiliconization trunk line when the desiliconization pump is running; the primary hardening trunk line is provided with a hardening pump bypass connected in parallel with the hardening pump; the hardening pump bypass is used to return a portion of the wastewater pumped by the hardening pump to the front end of the primary hardening trunk line when the hardening pump is running.

[0022] In a preferred embodiment, the secondary desiliconization water supply pipeline includes a secondary desiliconization trunk line with one end connected to the desiliconization product water tank, a first secondary desiliconization branch line and a second secondary desiliconization branch line, both connected to the side of the secondary desiliconization trunk line away from the desiliconization product water tank; the end of the first secondary desiliconization branch line away from the secondary desiliconization trunk line is connected to the primary hardening tank, and the end of the second secondary desiliconization branch line away from the secondary desiliconization trunk line is used to connect to a predetermined water storage point; the secondary desiliconization trunk line is equipped with a desiliconization product water pump, which is used to pump the product water from the desiliconization product water tank.

[0023] In a preferred embodiment, the secondary hardness removal water supply pipeline includes a secondary hardness removal main line with one end connected to the hardness removal product water tank, a first secondary hardness removal branch line and a second secondary hardness removal branch line, both connected to the side of the secondary hardness removal main line away from the hardness removal product water tank; the end of the first secondary hardness removal branch line away from the secondary hardness removal main line is connected to the primary silica removal tank, and the end of the second secondary hardness removal branch line away from the secondary hardness removal main line is used to connect to a predetermined water storage point; the secondary hardness removal main line is equipped with a hardness removal product water pump, which is used to pump the product water from the hardness removal product water tank.

[0024] In a preferred embodiment, the secondary desiliconization trunk line is provided with a desiliconization water production pump bypass connected in parallel with the desiliconization water production pump; the desiliconization water production pump bypass is used to return a portion of the water pumped out by the desiliconization water production pump to the desiliconization water production tank when the desiliconization water production pump is running; the secondary hardening trunk line is provided with a hardening water production pump bypass connected in parallel with the hardening water production pump; the hardening water production pump bypass is used to return a portion of the water pumped out by the hardening water production pump to the hardening water production tank when the hardening water production pump is running.

[0025] In a preferred embodiment, a desiliconization water pipeline is provided between the secondary desiliconization sedimentation tank and the desiliconization water production tank, and the water overflowing from the secondary desiliconization sedimentation tank after reaction enters the desiliconization water production tank through the desiliconization water production pipeline; a hardness removal water pipeline is provided between the secondary hardness removal sedimentation tank and the hardness removal water production tank, and the water overflowing from the secondary hardness removal sedimentation tank after reaction enters the hardness removal water production tank through the hardness removal water production pipeline.

[0026] The present invention provides a switchable primary and secondary test structure for a hardening and desiliconization reaction tank. By switching the flow direction of wastewater in the primary desiliconization tank, primary hardening tank, secondary desiliconization sedimentation tank, secondary hardening sedimentation tank, desiliconization product water tank, and hardening product water tank through the inlet pipe, primary / secondary desiliconization water supply pipe, and primary / secondary hardening desiliconization water supply pipe, the optimal reaction sequence for primary / secondary hardening and desiliconization can be tested. The operation is simple. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the pipeline for a switchable primary and secondary test structure of the hardening and silicon removal reaction tank in an exemplary embodiment.

[0029] Numbered in the diagram: 100, the primary and secondary switchable test structure of the hardening and silicon removal reaction cell;

[0030] 10. Primary silicon removal tank; 20. Primary hardening removal tank; 30. Secondary silicon removal sedimentation tank; 40. Secondary hardening removal sedimentation tank; 50. Silicon removal product water tank; 60. Hardening removal product water tank;

[0031] 101. Silicon removal product water pipeline; 102. Hardness removal product water pipeline;

[0032] 201. Main water inlet line; 202. First water inlet branch line; 203. Second water inlet branch line; 204. Water inlet pump; 205. Water inlet pump bypass;

[0033] 301. Primary silicon removal trunk line; 302. First primary silicon removal branch line; 303. Second primary silicon removal branch line; 304. Silicon removal pump; 305. Silicon removal pump bypass;

[0034] 401. Primary level road excluding hardened trunk road; 402. First-level primary level road excluding hardened branch road; 403. Second-level primary level road excluding hardened branch road; 404. Hardened pump road excluding hardened pump road; 405. Hardened pump bypass road excluding hardened pump road.

[0035] 501. Secondary silicon removal trunk line; 502. First and secondary silicon removal branch lines; 503. Secondary silicon removal branch lines; 504. Silicon removal water pump; 505. Silicon removal water pump bypass;

[0036] 601. Secondary hardened main road; 602. First and secondary hardened branch roads; 603. Secondary hardened branch roads; 604. Hardened water production pump; 605. Hardened water production pump bypass. Detailed Implementation

[0037] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described in this specification are merely for explaining the present utility model and are not intended to limit the present utility model.

[0038] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0040] In an embodiment of this utility model, a primary and secondary switchable test structure 100 for a hardening and desiliconization reaction tank is provided for testing the optimal or better reaction sequence for hardening and desiliconization of target industrial wastewater.

[0041] like Figure 1 As shown, the primary and secondary switchable test structure 100 of the hardening and desiliconization reaction tank includes: primary desiliconization tank 10, primary hardening desiliconization tank 20, secondary desiliconization sedimentation tank 30, secondary hardening desiliconization sedimentation tank 40, desiliconization product water tank 50, hardening desiliconization product water tank 60, inlet pipeline, primary desiliconization water supply pipeline, primary hardening desiliconization water supply pipeline, secondary desiliconization water supply pipeline, and secondary hardening desiliconization water supply pipeline.

[0042] Specifically, the silicon removal product water tank 50 is used to receive the product water discharged from the secondary silicon removal sedimentation tank 30; the hardness removal product water tank 60 is used to receive the product water discharged from the secondary hardness removal sedimentation tank 40.

[0043] A silicon removal product water pipeline 101 is provided between the secondary silicon removal sedimentation tank 30 and the silicon removal product water tank 50. The product water overflowing from the secondary silicon removal sedimentation tank 30 after the reaction enters the silicon removal product water tank 50 through the silicon removal product water pipeline 101. A hardness removal product water pipeline 102 is provided between the secondary hardness removal sedimentation tank 40 and the hardness removal product water tank 60. The product water overflowing from the secondary hardness removal sedimentation tank 40 after the reaction enters the hardness removal product water tank 60 through the hardness removal product water pipeline 102.

[0044] In this embodiment, the inlet pipe is used to transport the wastewater to be treated to the primary silicon removal tank 10 or the primary hardening tank 20.

[0045] The water inlet pipeline includes a main water inlet 201 and a first water inlet branch 202 and a second water inlet branch 203, both connected to the main water inlet 201. The first water inlet branch 202 is connected to the primary silica removal tank 10. The second water inlet branch 203 is connected to the primary hardening removal tank 20.

[0046] The main water inlet 201 is equipped with an inlet pump 204, which is used to pump the wastewater to be treated in the main water inlet 201 into the first inlet branch 202 and the second inlet branch 203, thereby transporting the wastewater to be treated to the primary silicon removal tank 10 or the primary hardening removal tank 20.

[0047] Furthermore, the inlet main line 201 is provided with an inlet pump bypass 205 connected in parallel with the inlet pump 204. The inlet pump bypass 205 is used to return a portion of the wastewater to be treated pumped out by the inlet pump 204 to the front end of the inlet main line 201 when the inlet pump 204 is running, thereby allowing the inlet pump 204 to operate at its rated power and preventing damage to the inlet pump 204 due to pressure buildup.

[0048] In this embodiment, the primary silicon removal water supply pipeline is used to transport the wastewater treated in the primary silicon removal tank 10 to the primary silicon removal tank 20 or the secondary silicon removal sedimentation tank 30.

[0049] Specifically, the primary silicon removal water supply pipeline includes a primary silicon removal trunk line 301 connected at one end to the primary silicon removal tank 10, and a first primary silicon removal branch line 302 and a second primary silicon removal branch line 303, both connected to the side of the primary silicon removal trunk line 301 away from the primary silicon removal tank 10. The end of the first primary silicon removal branch line 302 away from the primary silicon removal trunk line 301 is connected to the primary silicon removal tank 20, and the end of the second primary silicon removal branch line 303 away from the primary silicon removal trunk line 301 is connected to the secondary silicon removal sedimentation tank 30. The primary silicon removal trunk line 301 is equipped with a silicon removal pump 304, which is used to pump the wastewater treated in the primary silicon removal tank 10 out, so that it can be pumped into the primary silicon removal tank 20 or the secondary silicon removal sedimentation tank 30.

[0050] Similarly, the primary hardening removal water supply pipeline is used to transport the wastewater treated in the primary hardening removal tank 20 to the primary silicon removal tank 10 or the secondary hardening removal sedimentation tank 40.

[0051] Specifically, the primary hardening removal water supply pipeline includes a primary hardening removal main line 401 connected at one end to the primary hardening removal tank 20, and a first primary hardening removal branch line 402 and a second primary hardening removal branch line 403 both connected to the side of the primary hardening removal main line 401 away from the primary hardening removal tank 20. The end of the first primary hardening removal branch line 402 away from the primary hardening removal main line 401 is connected to the primary silicate removal tank 10, and the end of the second primary hardening removal branch line 403 away from the primary hardening removal main line 401 is connected to the secondary hardening removal sedimentation tank 40. The primary hardening removal main line 401 is equipped with a hardening removal pump 404, which is used to pump the wastewater treated in the primary hardening removal tank 20 out, so that it can be pumped into the primary silicate removal tank 10 or the secondary hardening removal sedimentation tank 40.

[0052] Furthermore, the primary desilicon removal trunk line 301 is equipped with a desilicon pump bypass 305 connected in parallel with the desilicon pump 304. The desilicon pump bypass 305 is used to return a portion of the wastewater pumped by the desilicon pump 304 to the front end of the primary desilicon removal trunk line 301 when the desilicon pump 304 is running, preventing damage to the desilicon pump 304 due to pressure buildup. The primary hardening trunk line 401 is equipped with a hardening pump bypass 405 connected in parallel with the hardening pump 404. The hardening pump bypass 405 is used to return a portion of the wastewater pumped by the hardening pump 404 to the front end of the primary hardening trunk line 401 when the hardening pump 404 is running, preventing damage to the hardening pump 404 due to pressure buildup.

[0053] In this embodiment, the secondary silica removal water supply pipeline is used to transport the produced water from the silica removal water tank 50 to the primary hardening tank 20 or a predetermined water storage point. The predetermined water storage point can be a reserved water usage point, or a fiber ball filter, etc.

[0054] Specifically, the secondary desiliconization water supply pipeline includes a secondary desiliconization main line 501 connected at one end to the desiliconization product water tank 50, and a first secondary desiliconization branch line 502 and a second secondary desiliconization branch line 503, both connected to the side of the secondary desiliconization main line 501 away from the desiliconization product water tank 500. The end of the first secondary desiliconization branch line 502 away from the secondary desiliconization main line 501 is connected to the primary hardening tank 20, and the end of the second secondary desiliconization branch line 503 away from the secondary desiliconization main line 501 is used to connect to a predetermined water storage point. The secondary desiliconization main line 501 is equipped with a desiliconization product water pump 504, which is used to pump the product water in the desiliconization product water tank 50 out, thereby pumping it into the primary hardening tank 20 or directly discharging it to a predetermined water storage point outside.

[0055] In this embodiment, the secondary hardness removal water supply pipeline is used to transport the produced water from the hardness removal product water tank 60 to the primary silica removal tank 10 or a predetermined water storage point. The predetermined water storage point can be a reserved water usage point, or a fiber ball filter, etc.

[0056] Specifically, the secondary hardening removal water supply pipeline includes a secondary hardening removal main line 601 connected at one end to the hardening removal product water tank 60, and a first secondary hardening removal branch line 602 and a second secondary hardening removal branch line 603 both connected to the side of the secondary hardening removal main line 601 away from the hardening removal product water tank 600. The end of the first secondary hardening removal branch line 602 away from the secondary hardening removal main line 601 is connected to the primary desiliconization tank 10, and the end of the second secondary hardening removal branch line 603 away from the secondary hardening removal main line 601 is used to connect to a predetermined water storage point. The secondary hardening removal main line 601 is equipped with a hardening removal product water pump 604, which is used to pump the product water in the hardening removal product water tank 60 out, thereby pumping it into the primary desiliconization tank 10 or directly discharging it to a predetermined external water storage point.

[0057] Furthermore, the secondary silicon removal trunk line 501 is equipped with a silicon removal product water pump bypass 505 connected in parallel with the silicon removal product water pump 504. The silicon removal product water pump bypass 505 is used to return a portion of the product water pumped by the silicon removal product water pump 504 to the silicon removal product water tank 50 when the pump 504 is running, preventing damage to the silicon removal product water pump 504 due to pressure buildup. The secondary hardening trunk line 601 is equipped with a hardening product water pump bypass 605 connected in parallel with the hardening product water pump 604. The hardening product water pump bypass 605 is used to return a portion of the product water pumped by the hardening product water pump 604 to the hardening product water tank 60 when the pump 604 is running, preventing damage to the hardening product water pump 604 due to pressure buildup.

[0058] It should be noted that each main road, branch road, and bypass described in this utility model is equipped with a corresponding valve structure for controlling the opening and closing of its own pipeline.

[0059] For example, if the process involves first-stage silicon removal followed by second-stage silicon removal, then first-stage hardening followed by second-stage hardening, the wastewater to be treated sequentially passes through the following channels: inlet main line 201, first inlet branch line 202, first-stage silicon removal tank 10, first-stage silicon removal main line 301, second-stage silicon removal branch line 303, second-stage silicon removal sedimentation tank 30, silicon removal product water pipeline 101, silicon removal product water tank 50, second-stage silicon removal main line 501, first and second-stage silicon removal branch lines 502, first-stage hardening tank 20, first-stage hardening main line 401, second-stage hardening branch line 403, second-stage hardening sedimentation tank 40, hardening product water pipeline 102, and hardening product water tank 60.

[0060] For example, if the process involves first-stage hardening followed by first-stage silicon removal, then second-stage silicon removal followed by first-stage hardening and second-stage hardening, the wastewater to be treated sequentially passes through the following main inlet 201, second inlet branch 203, first-stage hardening tank 20, first-stage hardening main 401, first-stage hardening branch 402, first-stage silicon removal tank 10, first-stage silicon removal main 301, second-stage silicon removal branch 303, second-stage silicon removal sedimentation tank 30, silicon removal product water pipeline 101, silicon removal product water tank 50, second-stage silicon removal main 501, first-stage and second-stage silicon removal branch 502, first-stage hardening tank 20, first-stage hardening main 401, second-stage hardening branch 403, second-stage hardening sedimentation tank 40, hardening product water pipeline 102, and hardening product water tank 60.

[0061] Of course, the combinations of testing processes are not limited to the exemplary embodiments described above, and will not be listed one by one here.

[0062] In summary, the switchable primary and secondary test structure 100 for the hardening and desiliconization reaction tank provided by this utility model allows for switching the flow direction of wastewater in the primary desiliconization tank 10, primary hardening desiliconization tank 20, secondary desiliconization sedimentation tank 30, secondary hardening desiliconization sedimentation tank 40, desiliconization product water tank 50, and hardening desiliconization product water tank 60 via the inlet pipe, primary / secondary desiliconization water supply pipe, and primary / secondary hardening desiliconization water supply pipe. This enables the testing of the optimal reaction sequence for primary / secondary hardening and desiliconization, and the operation is simple.

[0063] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A switchable primary and secondary test structure for a hardening and silicon removal reaction cell, characterized in that, include: Primary silicon removal tank, primary hardening removal tank, secondary silicon removal sedimentation tank, secondary hardening removal sedimentation tank; A silicon removal product water tank, which is used to receive the product water discharged from the secondary silicon removal sedimentation tank; The hardness removal product water tank is used to receive the product water discharged from the secondary hardness removal sedimentation tank; The inlet pipeline is used to transport wastewater to be treated to the primary silicon removal tank or the primary hardening removal tank. A primary silicon removal water supply pipeline is used to transport wastewater treated in the primary silicon removal tank to the primary silicon removal tank or the secondary silicon removal sedimentation tank. A primary hardening removal water transmission pipeline is used to transport wastewater treated in the primary hardening removal tank to the primary silicon removal tank or the secondary hardening removal sedimentation tank. A secondary desiliconization water supply pipeline is used to transport the water produced by the desiliconization water tank to the primary hardening tank or a predetermined water storage point. A secondary hardness removal water supply pipeline is used to transport the produced water from the hardness removal water tank to the primary silica removal tank or a predetermined water storage point.

2. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 1, characterized in that, The water inlet pipeline includes a main water inlet pipeline and a first water inlet branch and a second water inlet branch, both connected to the main water inlet pipeline; the first water inlet branch is connected to the primary silica removal tank, and the second water inlet branch is connected to the primary hardness removal tank; the main water inlet pipeline is equipped with a water inlet pump, which is used to pump the wastewater to be treated in the main water inlet pipeline into the first water inlet branch and the second water inlet branch.

3. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 2, characterized in that, The inlet main line is provided with an inlet pump bypass connected in parallel with the inlet pump; the inlet pump bypass is used to return a portion of the wastewater to be treated pumped out by the inlet pump to the front end of the inlet main line when the inlet pump is running.

4. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 1, characterized in that, The primary silicon removal water supply pipeline includes a primary silicon removal trunk line with one end connected to the primary silicon removal tank, a first primary silicon removal branch line and a second primary silicon removal branch line, both connected to the side of the primary silicon removal trunk line away from the primary silicon removal tank; the end of the first primary silicon removal branch line away from the primary silicon removal trunk line is connected to the primary silicon removal tank, and the end of the second primary silicon removal branch line away from the primary silicon removal trunk line is connected to the secondary silicon removal sedimentation tank; the primary silicon removal trunk line is equipped with a silicon removal pump, which is used to pump the wastewater treated by the primary silicon removal tank out.

5. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 4, characterized in that, The primary hardening removal water supply pipeline includes a primary hardening removal main line connected to the primary hardening removal tank at one end, a first primary hardening removal branch line and a second primary hardening removal branch line both connected to the side of the primary hardening removal main line away from the primary hardening removal tank; the end of the first primary hardening removal branch line away from the primary hardening removal main line is connected to the primary silicon removal tank, and the end of the second primary hardening removal branch line away from the primary hardening removal main line is connected to the secondary hardening removal sedimentation tank; the primary hardening removal main line is equipped with a hardening removal pump, which is used to pump the wastewater treated by the primary hardening removal tank out.

6. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 5, characterized in that, The primary desilicon removal trunk line is provided with a desilicon pump bypass connected in parallel with the desilicon pump; the desilicon pump bypass is used to return a portion of the wastewater pumped by the desilicon pump to the front end of the primary desilicon removal trunk line when the desilicon pump is running; the primary hardening removal trunk line is provided with a hardening pump bypass connected in parallel with the hardening pump; the hardening pump bypass is used to return a portion of the wastewater pumped by the hardening pump to the front end of the primary hardening removal trunk line when the hardening pump is running.

7. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 1, characterized in that, The secondary silicon removal water supply pipeline includes a secondary silicon removal trunk line with one end connected to the silicon removal water production tank, a first secondary silicon removal branch line and a second secondary silicon removal branch line, both connected to the side of the secondary silicon removal trunk line away from the silicon removal water production tank; The first secondary silicon removal branch is connected to the first primary hardening tank at one end away from the secondary silicon removal main line, and the second secondary silicon removal branch is connected to a predetermined water storage point at one end away from the secondary silicon removal main line. The secondary silicon removal main line is equipped with a silicon removal water pump, which is used to pump out the water produced in the silicon removal water tank.

8. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 7, characterized in that, The secondary hardening removal water supply pipeline includes a secondary hardening removal main line connected at one end to the hardening removal product water tank, and a first secondary hardening removal branch line and a second secondary hardening removal branch line both connected to the side of the secondary hardening removal main line away from the hardening removal product water tank; the end of the first secondary hardening removal branch line away from the secondary hardening removal main line is connected to the primary silica removal tank, and the end of the second secondary hardening removal branch line away from the secondary hardening removal main line is used to connect to a predetermined water storage point; the secondary hardening removal main line is equipped with a hardening removal product water pump, which is used to pump the product water from the hardening removal product water tank.

9. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 8, characterized in that, The secondary desiliconization trunk line is provided with a desiliconization water production pump bypass connected in parallel with the desiliconization water production pump; the desiliconization water production pump bypass is used to return a portion of the water pumped out by the desiliconization water production pump to the desiliconization water production tank when the desiliconization water production pump is running; the secondary hardening trunk line is provided with a hardening water production pump bypass connected in parallel with the hardening water production pump; the hardening water production pump bypass is used to return a portion of the water pumped out by the hardening water production pump to the hardening water production tank when the hardening water production pump is running.

10. The primary and secondary switchable test structure of the hardening and silicon removal reaction cell as described in claim 1, characterized in that, A desilicon removal water pipeline is provided between the secondary desilicon removal sedimentation tank and the desilicon removal water production tank. The water overflowing from the secondary desilicon removal sedimentation tank after reaction enters the desilicon removal water production tank through the desilicon removal water production pipeline. A hardness removal water pipeline is provided between the secondary hardness removal sedimentation tank and the hardness removal water production tank. The water overflowing from the secondary hardness removal sedimentation tank after reaction enters the hardness removal water production tank through the hardness removal water production pipeline.

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