Quartz sand pickling water treatment system

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a quartz sand pickling water treatment system, which includes a neutralization device and a sedimentation device, the neutralization device includes a first storage tank, a neutralization tank and a switch assembly; the first storage tank is formed with a first discharge port, and the first storage tank is used to store alkaline substances; the first discharge port is connected to the tank port of the neutralization tank through a pipeline, and a water outlet is formed at the top of the tank wall of the neutralization tank; the switch assembly includes a solenoid valve and a pH meter, the solenoid valve is arranged at the first discharge port, the pH meter is arranged at the water outlet, and the solenoid valve and the pH meter are electrically connected through an industrial control machine; the sedimentation device is connected to the water outlet through a pipeline. In the technical scheme of the utility model, the pH value of the treated pickling water can be measured in the process of neutralizing the pickling water in the neutralization tank, and the amount of the alkaline substance added can be adjusted in real time according to the pH value of the treated pickling water, thereby avoiding the operation of repeated filling and measurement, and improving the treatment efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a quartz sand pickling water treatment system. Background Art

[0002] The photovoltaic industry is developing rapidly. As one of the raw materials for photovoltaic glass, the demand for quartz sand is also increasing day by day. In order to meet production needs, quartz sand mineral resources of varying quality are put into production. Before being put into production, quartz sand needs to be acid-washed and purified. After acid washing and purification, a large amount of water resources are needed to rinse and deacidify the purified quartz sand; in order to avoid the waste of water resources, the water used in the deacidification process needs to be recycled after comprehensive treatment.

[0003] However, the existing pickling water treatment system uses artificial alkali solution to neutralize the pickling water. During the neutralization process, it is necessary to ensure that the pH value of the water entering the circulation after treatment is between 5.5 and 8. Therefore, it is necessary to repeat the operation of measuring the pH value after filling, which makes the entire treatment process take too long and the treatment efficiency is too low. Utility Model Content

[0004] The main purpose of the utility model is to provide a quartz sand pickling water treatment system, aiming to improve the treatment efficiency of quartz sand pickling water.

[0005] In order to achieve the above-mentioned purpose, the quartz sand pickling water treatment system proposed in the utility model comprises:

[0006] A neutralization device, the neutralization device comprising a first storage tank, a neutralization tank and a switch assembly; the first storage tank is formed with a first discharge port, the first storage tank is used to store alkaline substances; the first discharge port is connected to the tank port of the neutralization tank through a pipeline, and a water outlet is formed at the top of the tank wall of the neutralization tank; the switch assembly comprises a solenoid valve and a pH meter, the solenoid valve is arranged at the first discharge port, the pH meter is arranged at the water outlet, and the solenoid valve is electrically connected to the pH meter; and

[0007] A sedimentation device is connected to the water outlet through a pipeline.

[0008] Optionally, the neutralization device comprises a stirrer, and the stirrer is arranged in the neutralization tank.

[0009] Optionally, the neutralization pool is formed with a plurality of the neutralization tanks, each two of the neutralization tanks are adjacently arranged and an overflow port is formed at the top of the tank wall between each two of the neutralization tanks; the first discharge port is connected to the neutralization tank away from the water outlet through a pipeline; the neutralization device includes a mixer arranged in each of the neutralization tanks.

[0010] Optionally, the quartz sand pickling water treatment system includes a coagulation device, which includes a coagulation tank and a second storage tank; the coagulation tank is connected to the water outlet and connected to the sedimentation device through a pipeline; the opening of the second storage tank is located above the coagulation tank, and the second storage tank is used to store PAC agent.

[0011] Optionally, the coagulation device further comprises a third storage tank, an opening of which is connected to the sedimentation device, and the third storage tank is used to store PAM agent.

[0012] Optionally, the sedimentation device includes a concentration tank, which includes a central barrel, a stabilization tank and a sedimentation tank; the central barrel is connected to the water outlet through a pipeline, the central barrel is arranged in the stabilization tank, and the stabilization tank is arranged at the notch of the sedimentation tank.

[0013] Optionally, the sedimentation tank is configured to be wide at the top and narrow at the bottom, and a mud outlet is formed at the bottom of the sedimentation tank.

[0014] Optionally, the sedimentation device further comprises a filter press, and a feed inlet of the filter press is connected to the mud outlet.

[0015] Optionally, the sedimentation device also includes a tailings pool, which is connected to the discharge port of the filter press; the sedimentation device also includes a filter element, a water filter port is formed at the bottom of the tailings pool, the filter element is arranged at the water filter port, and the water filter port is connected to the neutralization tank.

[0016] Optionally, the sedimentation device further includes a water reservoir, and a clean water outlet is formed at the top of the groove wall of the stabilization groove, and the clean water outlet is connected to the water reservoir.

[0017] In the technical scheme of the utility model, the quartz sand pickling water treatment system includes a neutralization device and a sedimentation device, the neutralization device includes a first storage tank, a neutralization tank and a switch assembly; the first storage tank is formed with a first discharge port, and the first storage tank is used to store alkaline substances; the first discharge port is connected to the tank port of the neutralization tank through a pipeline, and a water outlet is formed at the top of the tank wall of the neutralization tank; the switch assembly includes a solenoid valve and a pH meter, the solenoid valve is arranged at the first discharge port, the pH meter is arranged at the water outlet, and the solenoid valve and the pH meter are electrically connected through an industrial control machine; the sedimentation device is connected to the water outlet through a pipeline. The pH meter measures the pH value of the pickling water flowing from the outlet to the sedimentation device after being treated in the neutralization tank, and then uploads the measured pH value to the industrial computer. The industrial computer controls the opening and closing degree of the electromagnetic valve according to the pH value, thereby controlling the amount of alkaline substances added by the first storage tank to the neutralization tank, thereby adjusting the pH value of the pickling water flowing from the neutralization tank to the sedimentation device. The sedimentation device is used to separate the water and the mud, and will not change the pH value of the water, so that the pH value of the treated water is between 5.5 and 8, which meets the standards for recycling. In the technical solution of the utility model, the pH value of the treated pickling water can be measured during the process of neutralizing the pickling water in the neutralization tank, and the amount of alkaline substances added can be adjusted in real time according to the pH value of the treated pickling water, so as to ensure that the pH value of the pickling water flowing out of the neutralization tank is controlled within the standard range for recycling, thereby avoiding the operation of repeated filling and measurement, and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 The utility model is a schematic diagram of the planar structure of an embodiment of the quartz sand pickling water treatment system provided by the utility model.

[0020] Description of Figure Numbers:

[0021]

[0022]

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments 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.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0027] Please refer to Figure 1 In order to solve the problem of low recycling efficiency of quartz sand pickling water, the utility model proposes a quartz sand pickling water treatment system 1000, comprising:

[0028] In the technical solution of the utility model, the quartz sand pickling water treatment system 1000 includes a neutralization device and a sedimentation device, the neutralization device includes a first storage tank 11, a neutralization tank 12 and a switch assembly; the first storage tank 11 is formed with a first discharge port 11a, and the first storage tank 11 is used to store alkaline substances; the first discharge port 11a is connected to the tank port of the neutralization tank 12 through a pipeline, and a water outlet 12a is formed at the top of the tank wall of the neutralization tank 12; the switch assembly includes a solenoid valve 131 and a pH meter 132, the solenoid valve 131 is arranged at the first discharge port 11a, the pH meter 132 is arranged at the water outlet 12a, and the solenoid valve 131 and the pH meter 132 are electrically connected through an industrial control machine; the sedimentation device is connected to the water outlet 12a through a pipeline. The pH meter 132 measures the pH value of the pickling water flowing from the outlet 12a to the sedimentation device after being treated in the neutralization tank 12, and then uploads the measured pH value to the industrial computer. The industrial computer controls the opening and closing degree of the solenoid valve 131 according to the pH value, thereby controlling the amount of alkaline substance added into the neutralization tank 12 by the first storage tank 11, so as to adjust the pH value of the pickling water flowing from the neutralization tank 12 to the sedimentation device. The sedimentation device is used to separate water and mud into layers without changing the pH value of the water, so that the pH value of the treated water is between 5.5 and 8, which meets the standards for recycling.

[0029] In the technical solution of the utility model, the pH value of the treated pickling water can be measured during the process of neutralizing the pickling water in the neutralization tank 12, and the amount of alkaline substance added can be adjusted in real time according to the pH value of the treated pickling water to ensure that the pH value of the pickling water flowing out of the neutralization tank 12 is controlled within the standard range that meets the recycling use, thereby avoiding the operation of repeated filling and post-measurement, and improving the processing efficiency.

[0030] In one embodiment, the neutralization device includes a stirrer 14, which is disposed in the neutralization tank 12. The stirrer 14 is used to stir the pickling water and the alkaline substance in the neutralization tank 12 to allow the neutralization reaction of the pickling water and the alkaline substance to react more fully.

[0031] Specifically, the neutralization tank 12 is formed with a plurality of neutralization tanks 121. In one embodiment, the neutralization tank 12 includes three neutralization tanks 121, each two of the neutralization tanks 121 are arranged adjacent to each other, and an overflow port 121a is formed at the top of the tank wall between each two of the neutralization tanks 121; the first discharge port 11a is connected to the neutralization tank 121 away from the water outlet 12a through a pipeline; and the neutralization device includes a mixer 14 arranged in each neutralization tank 121. The three neutralization tanks 121 from far away from the water outlet 12a to close to the water outlet 12a are defined as a primary neutralization tank 121, a secondary neutralization tank 121 and a tertiary neutralization tank 121 respectively; calcium oxide is placed in the first storage tank 11, and after the solenoid valve 131 is opened, the calcium oxide flows out from the first discharge port 11a to the primary neutralization tank 121, and reacts with the quartz sand pickling water in the primary neutralization tank 121 to produce calcium hydroxide, and heat is generated at the same time; the calcium hydroxide and the quartz sand pickling water undergo a neutralization reaction, and the heat generated by the reaction of calcium oxide and water improves the efficiency of the neutralization reaction of calcium hydroxide and the quartz sand pickling water; then the water in the primary neutralization tank 121 flows from the overflow port 121a into the secondary neutralization tank 121 for secondary stirring, so that the quartz sand pickling water is fully neutralized; similarly, the tertiary neutralization tank 121 is also the same; after the quartz sand pickling water is fully neutralized, it flows from the water outlet 12a to the sedimentation device for sedimentation and stratification treatment. Such an arrangement utilizes the heat generated by the reaction of calcium oxide and water to accelerate the neutralization reaction of the quartz sand pickling water, thereby improving the neutralization efficiency of the quartz sand pickling water.

[0032] In one embodiment, the quartz sand pickling water treatment system 1000 includes a coagulation device, which includes a coagulation tank 31 and a second storage tank 32; the coagulation tank 31 is connected to the water outlet 12a and is connected to the sedimentation device through a pipeline; the opening of the second storage tank 32 is located above the coagulation tank 31, and the second storage tank 32 is used to store PAC reagents. The PAC reagent can flocculate and absorb impurities in the water, so that the quartz sand pickling water after neutralization can be cleaned.

[0033] Furthermore, the coagulation device further includes a third storage tank 33, the opening of which is connected to the sedimentation device, and the third storage tank 33 is used to store PAM reagent. When the PAM reagent is used in combination with the PAC reagent, the effect of removing impurities and purifying water sources is better; thus, the speed of mud and water stratification in the sedimentation device is faster, thereby improving the circulation treatment efficiency of quartz sand pickling water.

[0034] In one embodiment, the sedimentation device includes a concentration tank 21, which includes a central barrel 211, a stabilizing tank 212, and a sedimentation tank 213; the central barrel 211 is connected to the water outlet 12a through a pipeline, the central barrel 211 is arranged in the stabilizing tank 212, and the stabilizing tank 212 is arranged at the notch of the sedimentation tank 213. The water after the pH value is adjusted is pumped to the mixing box above the concentration tank 21, and the mixing box is filled with water treatment agents at the first stage. After mixing, the water is connected to the bottom of the central barrel 211 of the concentration tank 21 through the outlet of the mixing box. After the central barrel 211 is fully mixed, it overflows from the upper notch to the middle stabilizing tank, and passes through the bottom of the stabilizing tank to the outer layer for separation and sedimentation. The overflow tank reduces the rolling and rising of impurities and the generation of turbulence caused by the collision between water and the tank wall, effectively improves the water quality, and increases the processing capacity of quartz sand pickling water.

[0035] In one embodiment, the sedimentation tank 213 is arranged in a shape of being wide at the top and narrow at the bottom, and a mud outlet 213a is formed at the bottom of the sedimentation tank 213. The separated and settled mud flows out of the concentration tank 21 through the mud outlet 213a, and the sedimentation tank 213 is arranged in a shape of being wide at the top and narrow at the bottom to avoid the mud outlet 213a being too large, which causes water and mud to flow out of the concentration tank 21 from the mud outlet 213a at the same time, thereby improving the mud discharge efficiency of the concentration tank 21, and further improving the treatment efficiency of the quartz sand pickling water.

[0036] In one embodiment, the sedimentation device further includes a filter press 22, and the feed port of the filter press 22 is connected to the mud outlet 213a. The mud after separation and sedimentation enters the filter press 22 from the mud outlet 213a for secondary treatment. The filter press 22 presses the outflowing mud, so that the impurities in the outflowing mud are separated from the water solid-liquid, and the water obtained by the filter press can enter the neutralization tank 12 for secondary treatment, thereby improving the processing capacity of the quartz sand pickling water treatment system 1000 for quartz sand pickling water.

[0037] In one embodiment, the sedimentation device further includes a tailing mud pool 23, which is connected to the discharge port of the filter press 22; the sedimentation device further includes a filter element 24, and a water filter port 23a is formed at the bottom of the tailing mud pool 23, and the filter element 24 is arranged at the water filter port 23a, and the water filter port 23a is connected to the neutralization tank 12. The impurities in the mud after being filtered by the filter press 22 are separated from the water solid and liquid, and then the impurities enter the tailing mud pool 23, and the water attached to the impurities converges into a water flow and flows out from the water filter port 23a, and enters the neutralization tank 12 for secondary treatment, thereby improving the processing capacity of the quartz sand pickling water treatment system 1000 for quartz sand pickling water.

[0038] In one embodiment, the sedimentation device further includes a water reservoir 25, and a clean water inlet 212a is formed at the top of the wall of the stabilizing tank 212, and the clean water inlet 212a is connected to the water reservoir 25. The water after sedimentation treatment in the concentration tank 21 flows into the water reservoir 25 from the clean water inlet 212a of the stabilizing tank 212 to be used for pickling quartz sand, thereby realizing the recycling of quartz sand pickling water.

[0039] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A quartz sand pickling water treatment system (1000), characterized in that: include: A neutralization device, the neutralization device comprising a first storage tank (11), a neutralization tank (12) and a switch assembly; the first storage tank (11) is formed with a first discharge port (11a), the first storage tank (11) is used to store alkaline substances; the first discharge port (11a) is connected to the tank port of the neutralization tank (12) through a pipeline, and the top of the tank wall of the neutralization tank (12) is formed with a water outlet (12a); the switch assembly comprises a solenoid valve (131) and a pH meter (132), the solenoid valve (131) is arranged at the first discharge port (11a), the pH meter (132) is arranged at the water outlet (12a), and the solenoid valve (131) is electrically connected to the pH meter (132); and A sedimentation device is connected to the water outlet (12a) through a pipeline.

2. The quartz sand pickling water treatment system (1000) according to claim 1, characterized in that: The neutralization device comprises a stirrer (14), and the stirrer (14) is arranged in the neutralization tank (12).

3. The quartz sand pickling water treatment system (1000) according to claim 2, characterized in that: The neutralization pool (12) is formed with a plurality of neutralization tanks (121), each two of the neutralization tanks (121) are arranged adjacent to each other and an overflow port (121a) is formed at the top of the tank wall between each two of the neutralization tanks (121); the first discharge port (11a) is connected to the neutralization tank (121) away from the water outlet (12a) through a pipeline; and the neutralization device comprises a stirrer (14) arranged in each of the neutralization tanks (121).

4. The quartz sand pickling water treatment system (1000) according to claim 1, characterized in that: The quartz sand pickling water treatment system (1000) comprises a coagulation device, which comprises a coagulation tank (31) and a second storage tank (32); the coagulation tank (31) is connected to the water outlet (12a) and is connected to the sedimentation device through a pipeline; the opening of the second storage tank (32) is located above the coagulation tank (31), and the second storage tank (32) is used to store PAC reagents.

5. The quartz sand pickling water treatment system (1000) according to claim 4, characterized in that: The coagulation device further comprises a third storage tank (33), the opening of the third storage tank (33) is connected to the sedimentation device, and the third storage tank (33) is used to store the PAM agent.

6. The quartz sand pickling water treatment system (1000) according to any one of claims 1 to 5, characterized in that: The sedimentation device comprises a concentration tank (21), and the concentration tank (21) comprises a central barrel (211), a stabilization tank (212), and a sedimentation tank (213); the central barrel (211) is connected to the water outlet (12a) through a pipeline, the central barrel (211) is arranged in the stabilization tank (212), and the stabilization tank (212) is arranged at a notch of the sedimentation tank (213).

7. The quartz sand pickling water treatment system (1000) according to claim 6, characterized in that: The sedimentation trough (213) is arranged in a shape of being wide at the top and narrow at the bottom, and a mud outlet (213a) is formed at the bottom of the sedimentation trough (213).

8. The quartz sand pickling water treatment system (1000) according to claim 7, characterized in that: The sedimentation device further comprises a filter press (22), wherein a feed inlet of the filter press (22) is connected to the mud outlet (213a).

9. The quartz sand pickling water treatment system (1000) according to claim 8, characterized in that: The sedimentation device further comprises a tailings pool (23), wherein the tailings pool (23) is connected to a discharge port of the filter press (22); the sedimentation device further comprises a filter element (24), a water filter port (23a) is formed at the bottom of the tailings pool (23), the filter element (24) is arranged at the water filter port (23a), and the water filter port (23a) is connected to the neutralization pool (12).

10. The quartz sand pickling water treatment system (1000) according to claim 6, characterized in that: The sedimentation device further comprises a water reservoir (25), and a clean water inlet (212a) is formed at the top of the groove wall of the stabilizing groove (212), and the clean water inlet (212a) is connected to the water reservoir (25).

Images