CN211367085U

CN211367085U - Laboratory waste acid neutralization treatment device

Info

Publication number: CN211367085U
Application number: CN201921642210.5U
Authority: CN
Inventors: 罗春广; 张玮; 乌达巴拉; 孟潮洛濛
Original assignee: Inner Mongolia Centure Environmental Technology Co ltd; Inner Mongolia Zhongyuan Testing Technology Co ltd
Current assignee: Inner Mongolia Centure Environmental Technology Co ltd; Inner Mongolia Zhongyuan Testing Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-08-28
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a laboratory spent acid neutralization treatment device relates to spent acid processing apparatus field, including frame and cooling barrel, be equipped with the cooling tube that mixes in the cooling barrel, the cooling tube upper end that mixes is equipped with the spent acid case, and the lower extreme is equipped with the three-way valve, be connected with circulating device on the three-way valve, in the spent acid incasement was located to circulating device's last port, the three-way valve lower extreme was equipped with the liquid outlet, there was the lye case on the cooling tube upper portion that mixes through the pipe connection, the lye case is located in the frame, be equipped with the lye valve on the pipeline. The alkali liquor is gradually added into the mixed cooling pipe and reacts with the waste acid liquor, the pH of the waste acid liquor is gradually increased in the continuous circulation process through the circulating device, the heat release rate in unit time is reduced, the neutralization end point is accurately controlled, and the addition amount of the alkali liquor is easy to control. The mixed cooling pipe is arranged in the cooling barrel and is cooled by water, so that the accumulation of heat in the pipeline is further reduced, and the neutralization reaction is safe and mild.

Description

Laboratory waste acid neutralization treatment device

Technical Field

The utility model relates to a spent acid processing apparatus field, concretely relates to laboratory spent acid neutralization treatment device.

Background

The method is characterized in that a laboratory vessel is soaked and cleaned by using a common pickling solution (concentrated sulfuric acid or concentrated nitric acid) in a chemical detection laboratory, the cleaning effect of the pickling solution is poor after the pickling solution is used for a period of time, a new pickling solution needs to be replaced, the old pickling solution becomes a waste pickling solution, acid-base neutralization harmless treatment needs to be carried out, and then the waste pickling solution can be discharged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laboratory spent acid neutralization treatment device solves the too high and neutral solution of the neutralization liquid temperature that exists in the current acid-base neutralization device and does not in the problem of neutral within range.

The utility model provides a laboratory spent acid neutralization treatment device, includes frame and the cooling barrel of setting in the frame, be equipped with the cooling tube in the cooling barrel, the cooling tube upper end is equipped with the spent acid case, and the lower extreme is equipped with the three-way valve, be connected with circulating device on the three-way valve, in the spent acid case was located to circulating device's last port, the three-way valve lower extreme was equipped with the liquid outlet, there was the lye case on the cooling tube upper portion through the pipe connection, the lye case is located in the frame, be equipped with the lye valve on the pipeline.

Preferably, the circulating device comprises a circulating pump and a return pipe, the lower port of the return pipe is connected to the three-way valve, the upper port of the return pipe is arranged in the waste acid tank, and the circulating pump is arranged at the bottom of the return pipe.

Preferably, an acid liquid valve is arranged at the upper port of the mixing cooling pipe.

Preferably, the bottom of the waste acid tank is provided with an embedded pH meter, the embedded pH meter is connected with a display screen through a wire, and the display screen is arranged on the cooling barrel.

Preferably, the top of cooling barrel is equipped with the feed liquor pipe, and the bottom is equipped with the drain pipe, be equipped with the valve on the drain pipe.

The utility model has the advantages that: the alkali liquor is gradually added into the mixed cooling pipe and reacts with the waste acid liquor, the pH of the waste acid liquor is gradually increased in the continuous circulation process through the circulating device, the heat release rate in unit time is reduced, the neutralization end point is accurately controlled, and the addition amount of the alkali liquor is easy to control. The mixed cooling pipe is arranged in the cooling barrel and is cooled by water, so that the accumulation of heat in the pipeline is further reduced, and the neutralization reaction is safe and mild.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic top view of the present invention.

Fig. 4 is a cross-sectional view at a-a of fig. 3.

The system comprises a machine frame 1, a waste acid tank 2, an alkaline liquid tank 3, an alkaline liquid valve 31, a backflow pipe 4, a mixed cooling pipe 5, an acid liquid valve 51, an embedded pH meter 6, a display screen 7, a cooling barrel 8, a liquid inlet pipe 81, a liquid outlet pipe 82, a circulating pump 9 and a three-way valve 10.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a laboratory spent acid neutralization treatment device, includes frame 1 and the cooling barrel 8 of setting in frame 1, be equipped with mixed cooling tube 5 in the cooling barrel 8, mixed cooling tube 5 upper end is equipped with waste acid case 2, and the lower extreme is equipped with three-way valve 10, be connected with circulating device on the three-way valve 10, circulating device's last port is located in waste acid case 2, and three-way valve 10 lower extreme is equipped with the liquid outlet, there is lye tank 3 on mixed cooling tube 5 upper portion through the pipe connection, lye tank 3 locates on frame 1, be equipped with lye valve 31 on the pipeline.

In this embodiment, the circulation device includes a circulation pump 9 and a return pipe 4, the lower port of the return pipe 4 is connected to the three-way valve 10, the upper port is arranged in the waste acid tank 2, and the circulation pump 9 is arranged at the bottom of the return pipe 4.

In this embodiment, an acid liquid valve 51 is provided at an upper port of the mixing cooling pipe 5.

In this embodiment, waste acid tank 2 bottom is equipped with embedded pH meter 6, embedded pH meter 6 is connected with display screen 7 through the wire, display screen 7 is located on cooling barrel 8.

In this embodiment, the top of cooling barrel 8 is equipped with feed liquor pipe 81, and the bottom is equipped with drain pipe 82, be equipped with the valve on the drain pipe 82.

The working process and principle are as follows: firstly, closing the liquid outlet pipe 82, filling cooling water into the cooling barrel 8, closing the acid liquid valve 51, transferring the waste acid liquid into the waste acid tank 2, filling the neutralizing alkali liquid into the alkali liquid tank 3, opening the acid liquid valve 51 and the alkali liquid valve 31, simultaneously opening the circulating pump 9, circulating the waste acid liquid in the mixed cooling pipe 5, the return pipe 4 and the waste acid tank 2, slowly adding the alkali liquid for neutralization, observing the pH reading on the display screen 7, closing the alkali liquid valve 31 when the pH reading is between 6.5 and 8.0, continuously circulating for 1 to 2min, closing the circulating pump 9 after the reading is stable, rotating the three-way valve 10 to discharge the neutralizing liquid from the liquid outlet for storage, and discharging the cooling water when the waste acid liquid is not used for a long time.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. The utility model provides a laboratory spent acid neutralization treatment device, its characterized in that, includes frame (1) and cooling barrel (8) of setting in frame (1), be equipped with hybrid cooling pipe (5) in cooling barrel (8), hybrid cooling pipe (5) upper end is equipped with waste acid case (2), and the lower extreme is equipped with three-way valve (10), be connected with circulating device on three-way valve (10), in waste acid case (2) were located to circulating device's last port, three-way valve (10) lower extreme was equipped with the liquid outlet, there is lye tank (3) on hybrid cooling pipe (5) upper portion through the pipe connection, lye tank (3) are located on frame (1), be equipped with lye valve (31) on the pipeline.

2. A laboratory waste acid neutralization treatment device according to claim 1, characterized in that, the circulating device comprises a circulating pump (9) and a return pipe (4), the lower port of the return pipe (4) is connected to a three-way valve (10), the upper port is arranged in the waste acid tank (2), and the circulating pump (9) is arranged at the bottom of the return pipe (4).

3. A laboratory spent acid neutralization treatment apparatus according to claim 2, characterized in that the upper port of the mixing cooling pipe (5) is provided with an acid liquid valve (51).

4. A laboratory waste acid neutralization treatment device according to claim 2, characterized in that, the bottom of the waste acid tank (2) is provided with an embedded pH meter (6), the embedded pH meter (6) is connected with a display screen (7) through a wire, and the display screen (7) is arranged on the cooling barrel (8).

5. A laboratory waste acid neutralization treatment apparatus according to claim 4, characterized in that the top of the cooling barrel (8) is provided with a liquid inlet pipe (81), the bottom is provided with a liquid outlet pipe (82), and the liquid outlet pipe (82) is provided with a valve.