Acid-containing wastewater treatment device

Abstract

The utility model provides an acid-containing wastewater treatment device which comprises a neutralizing tank, and supporting legs are longitudinally and fixedly connected to the periphery of the lower part of the neutralizing tank respectively; the middle part of the lower part of the neutralizing tank is fixedly connected with a driving motor, the upper end of an output shaft of the driving motor hermetically penetrates through the middle lower side in the neutralizing tank, and the upper end of the output shaft of the driving motor is fixedly connected with a stirring paddle; a discharge pipe is integrally connected to an opening in the left lower side of the neutralization tank, and a drain valve is fixedly connected to the left end of the discharge pipe in a sealing manner. Due to the arrangement of the liquid homogenizing pipe, the liquid mixing screen plate, the second PH value sensor, the connecting pipe, the primary liquid mixing pipe, the acid-containing wastewater input pipe and the alkali liquor input pipe, the pre-neutralization effect is favorably realized, the problem that the device is corroded by the acid-containing wastewater can be effectively avoided, and the service life of the device can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of acid-containing wastewater treatment, and in particular relates to an acid-containing wastewater treatment device. Background Art

[0002] An acid-containing wastewater treatment device is a treatment equipment that can neutralize acid-containing wastewater. When in use, the device generally needs to be connected to an alkali liquid tank so that the alkali liquid can flow into the acid-containing wastewater treatment device. Subsequently, the alkali liquid and the acid-containing wastewater can be mixed through a stirring component in the acid-containing wastewater treatment device. When the pH value of the wastewater is ≥7, the wastewater can be discharged to the next treatment equipment, thereby solving the problem of corrosion of the external discharge pipe caused by the acidity of industrial isooctane well water. Although the existing acid-containing wastewater treatment device can neutralize the wastewater and thus protect the external discharge pipe, the acid-containing wastewater treatment device itself will still be subject to relatively severe corrosion, which may lead to the problem of a low service life of the acid-containing wastewater treatment device. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides an acid-containing wastewater treatment device, which can achieve the effect of pre-neutralization, effectively avoid the problem of acid-containing wastewater corroding the device, and thus effectively increase the service life of the device.

[0004] The technical solution is as follows: an acid-containing wastewater treatment device comprises a neutralization tank, wherein the lower four parts of the neutralization tank are respectively longitudinally fixedly connected with support legs; a driving motor is fixedly connected to the lower middle part of the neutralization tank, and the upper end of the output shaft of the driving motor is sealed and passes through the inner middle and lower side of the neutralization tank, wherein the upper end of the output shaft of the driving motor is fixedly connected with a stirring paddle; a discharge pipe is integrally connected to the lower left opening of the neutralization tank, and a drain valve is sealed and fixedly connected to the left end of the discharge pipe; a first pH value sensor is sealed and fixedly connected to the lower middle opening on the rear side of the neutralization tank, and is characterized in that a pre-neutralization input component is sealed and detachably fixedly connected to the upper right opening of the neutralization tank.

[0005] Preferably, the pre-neutralization input component includes a liquid equalizing tube, and the inner middle part of the liquid equalizing tube is fixedly connected with a mixing liquid mesh plate in sequence from left to right; the second pH value sensor is sealed and fixedly connected to the opening on the lower left side of the liquid equalizing tube, and the second pH value sensor is located on the left side of the mixing liquid mesh plate on the left; a connecting pipe is integrally connected to the opening in the middle part of the right part of the liquid equalizing tube, and the right end of the connecting pipe is sealed and fixedly connected to a preliminary mixing liquid tube, wherein the upper opening of the preliminary mixing liquid tube is integrally connected with an acid-containing wastewater input pipe, and the lower opening of the preliminary mixing liquid tube is integrally connected with an alkali liquid input pipe.

[0006] Compared with the prior art, the beneficial effects of the utility model are:

[0007] In the utility model, the arrangement of the liquid equalizing pipe, the liquid mixing mesh plate, the second pH value sensor, the connecting pipe, the preliminary liquid mixing pipe, the acidic wastewater input pipe and the alkaline solution input pipe is conducive to achieving the effect of pre-neutralization, which can effectively avoid the problem of the acidic wastewater corroding the device, and thus can effectively improve the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 It is a partial cross-sectional schematic diagram of the utility model.

[0010] Figure 3 It is a partial cross-sectional schematic diagram of the pre-neutralization input component of the utility model.

[0011] In the figure:

[0012] 1. Neutralization tank; 2. Support legs; 3. Drive motor; 4. Agitator; 5. Discharge pipe; 6. Drain valve; 7. Pre-neutralization input assembly; 71. Liquid equalizing pipe; 72. Mixing liquid screen; 73. Second pH sensor; 74. Connecting pipe; 75. Preliminary mixing liquid pipe; 76. Acid wastewater input pipe; 77. Alkali liquid input pipe; 8. First pH sensor. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 and attached Figure 2 As shown, an acid-containing wastewater treatment device includes a neutralization tank 1, wherein support legs 2 are longitudinally fixedly connected to the four surrounding parts of the lower part of the neutralization tank 1; a driving motor 3 is fixedly connected to the lower middle part of the neutralization tank 1, and the upper end of the output shaft of the driving motor 3 is sealed and passes through the lower middle side of the interior of the neutralization tank 1, wherein a stirring paddle 4 is fixedly connected to the upper end of the output shaft of the driving motor 3; a discharge pipe 5 is integrally connected to the lower left opening of the neutralization tank 1, and a drain valve 6 is sealed and fixedly connected to the left end of the discharge pipe 5; a first pH sensor 8 is sealed and fixedly connected to the lower middle opening on the rear side of the neutralization tank 1.

[0014] One of the acid-containing wastewater treatment devices also includes a pre-neutralization input component 7, and the pre-neutralization input component 7 is sealed and detachably fixedly connected to the upper right opening of the neutralization tank 1, which is conducive to achieving the pre-neutralization effect and can effectively avoid the problem of acid-containing wastewater corroding the device, thereby effectively improving the service life of the device.

[0015] In this embodiment, combined with the Figure 3As shown, the pre-neutralization input component 7 includes a liquid equalizing tube 71, and the inner middle part of the liquid equalizing tube 71 is fixedly connected with a mixing liquid mesh plate 72 in sequence from left to right; the second pH value sensor 73 is sealed and fixedly connected to the opening on the lower left side of the liquid equalizing tube 71, and the second pH value sensor 73 is located on the left side of the mixing liquid mesh plate 72 on the left side; the opening in the middle part of the right part of the liquid equalizing tube 71 is integrally connected with a connecting tube 74, and the right end of the connecting tube 74 is sealed and fixedly connected with a preliminary mixing liquid tube 75, wherein the upper opening of the preliminary mixing liquid tube 75 is integrally connected with an acid-containing wastewater input pipe 76, and the lower opening of the preliminary mixing liquid tube 75 is integrally connected with an alkali liquid input pipe 77.

[0016] In this embodiment, specifically, the left end of the liquid balancing tube 71 is sealed and detachably fixedly connected to the upper right opening of the neutralization tank 1 .

[0017] In this embodiment, specifically, the upper end of the acid-containing wastewater input pipe 76 is tilted toward the left side.

[0018] In this embodiment, specifically, the lower end of the alkali solution input pipe 77 is tilted to the left.

[0019] In this embodiment, specifically, the liquid mixing screen plate 72 is a stainless steel screen plate.

[0020] In this embodiment, specifically, the preliminary liquid mixing pipe 75, the liquid equalizing pipe 71, the acid wastewater input pipe 76 and the alkali solution input pipe 77 are all made of stainless steel pipes.

[0021] In this embodiment, specifically, the driving motor 3, the first pH sensor 8 and the second pH sensor 73 are electrically connected to an external control panel respectively.

[0022] In this embodiment, specifically, the upper end of the acid-containing wastewater input pipe 76 is connected to the output end pipeline of the external acid-containing wastewater delivery pump.

[0023] In this embodiment, specifically, the lower end of the alkali solution input pipe 77 is connected to the output end pipeline of the external alkali solution delivery pump.

[0024] In the present embodiment, when injecting wastewater into the neutralization tank 1, the operator can turn on the external acid-containing wastewater delivery pump and the external alkali solution delivery pump. At this time, the acid-containing wastewater and the alkali solution will enter the preliminary mixing pipe 75 through the acid-containing wastewater input pipe 76 and the alkali solution input pipe 77 respectively. Because the upper end of the acid-containing wastewater input pipe 76 and the lower end of the alkali solution input pipe 77 are both inclined to the left, the acid-containing wastewater and the alkali solution will flow together to the right side of the interior of the preliminary mixing pipe 75. Because the right side of the preliminary mixing pipe 75 is blocked, the acid-containing wastewater and the alkali solution will tumble after colliding with the right side of the preliminary mixing pipe 75, and then the acid-containing wastewater and the alkali solution will be preliminarily mixed, which can effectively reduce the acidity of the acid-containing wastewater. Subsequently, the preliminarily neutralized wastewater will enter the equalizing pipe 71 through the connecting pipe 74. A mixing liquid mesh plate 72 is provided in the liquid pipe 71. When the preliminarily neutralized wastewater passes through the mixing liquid mesh plate 72, it will further churn, so that the preliminarily neutralized wastewater can be further mixed, and finally the preliminarily neutralized wastewater will enter the neutralization tank 1. In the process of preliminarily neutralizing the wastewater, the external control panel will automatically detect and display the pH value of the preliminarily neutralized wastewater through the second pH value sensor 73, so as to facilitate the operator to grasp the pH value of the preliminarily neutralized wastewater. Compared with the prior art, the utility model can pre-neutralize the acid-containing wastewater when injecting it into the neutralization tank 1, so as to effectively reduce the acidity of the acid-containing wastewater, and further effectively avoid the problem of the acid-containing wastewater corroding the components in the neutralization tank 1, and then effectively improve the service life of the device and achieve the effect of pre-neutralization.

[0025] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. An acid-containing wastewater treatment device, comprising a neutralization tank (1), wherein the lower four sides of the neutralization tank (1) are respectively longitudinally fixedly connected to support legs (2); a driving motor (3) is fixedly connected to the middle part of the lower part of the neutralization tank (1), and the upper end of the output shaft of the driving motor (3) is sealed and penetrates the lower middle side of the neutralization tank (1), wherein the upper end of the output shaft of the driving motor (3) is fixedly connected to a stirring paddle (4); a discharge pipe (5) is integrally connected to the lower left opening of the neutralization tank (1), and a drain valve (6) is sealed and fixedly connected to the left end of the discharge pipe (5); a first pH value sensor (8) is sealed and fixedly connected to the lower middle opening of the rear side of the neutralization tank (1), characterized in that: A pre-neutralization input assembly (7) is sealed and detachably fixedly connected to the upper right opening of the neutralization tank (1).

2. The acid wastewater treatment device according to claim 1, characterized in that: The pre-neutralization input component (7) comprises a liquid balancing tube (71), wherein the middle portion of the inner portion of the liquid balancing tube (71) is fixedly connected to a liquid mixing screen (72) in sequence from left to right; a second pH value sensor (73) is sealed and fixedly connected to the opening at the lower left side of the liquid balancing tube (71), and the second pH value sensor (73) is located on the left side of the liquid mixing screen (72) described on the left side; a connecting tube (74) is integrally connected to the opening at the middle portion of the right portion of the liquid balancing tube (71), and a preliminary liquid mixing tube (75) is sealed and fixedly connected to the right end of the connecting tube (74), wherein the upper opening of the preliminary liquid mixing tube (75) is integrally connected to an acid wastewater input tube (76), and the lower opening of the preliminary liquid mixing tube (75) is integrally connected to an alkali liquid input tube (77).

3. The acid wastewater treatment device according to claim 2, characterized in that: The left end of the liquid balancing pipe (71) is sealed and detachably fixedly connected to the upper right opening of the neutralization tank (1).

4. The acid wastewater treatment device according to claim 3, characterized in that: The upper end of the acid-containing wastewater inlet pipe (76) is tilted toward the left side.

5. The acid wastewater treatment device according to claim 4, characterized in that: The lower end of the alkali solution input pipe (77) is tilted toward the left side.

6. The acid wastewater treatment device according to claim 2, characterized in that: The liquid mixing screen plate (72) is made of a stainless steel screen plate.

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