CN203862285U - Acid and alkali waste liquid collection and treatment device for chemical experiment - Google Patents

Abstract

The utility model is a device for collecting and treating acid-base waste liquid in chemical experiments, which overcomes the defects of the prior art that the combination of split parts and multiple parts occupies a large area, complicated connections, high cost and poor practicability, and provides an integral, multi-functional , A well-sealed acid-base waste liquid collection and treatment device that avoids drain blockage, including a barrel body, which is a closed structure and has a liquid filling port, a waste liquid collection port, an exhaust port and a The installation port of the mixing device, there is a filtrate layer near the bottom inside the barrel, the liquid collection chamber is below the filtrate layer, and the side wall of the liquid collection chamber has a port to connect to the discharge pipe joint, and the discharge pipe joint is connected to the discharge pipe through a stop valve; The liquid filling port is equipped with a sealing cover, the waste liquid collection port is equipped with a funnel-shaped liquid collecting pipe and a closing mechanism, the exhaust port is connected with an exhaust valve, and the stirring device installation port is connected with the stirring device. The utility model is used for collecting and treating acid-base waste liquid in chemical experiments.

Description

A device for collecting and treating acid and alkali waste liquid in chemical experiments

technical field

The utility model belongs to the technical field of chemical experiment devices, in particular to a device for collecting and treating acid-base waste liquid.

Background technique

In chemical experiments, various organic and inorganic waste liquids are often produced. Generally, organic waste liquids have a heavier smell and more direct toxicity hazards. Experimenters pay more attention to them. They will be collected in special containers and handed over to organic waste for treatment. Units with qualifications related to waste liquid conduct centralized treatment, but the acid-base waste liquid is not directly harmful, so it has not attracted enough attention from the experimenters. Many experimenters often discharge the acid-base waste liquid directly into the sewer pipe. On the one hand, It will cause corrosion to the sewer pipeline. If it takes a long time, it will cause the pipeline to rust and damage. On the other hand, it will cause great damage to the environmental water body due to the low or high pH. Therefore, the acid-base waste liquid must also be It can be discharged directly after better collection and treatment.

In the prior art, the treatment method for waste liquid is to concentrate these waste liquids in a waste liquid barrel and discharge them after neutralization, but the method of adding liquid is unreasonable, there is waste gas leakage, and there are also defects in the waste liquid treatment and discharge structure, such as The granular waste in the waste liquid blocks the discharge pipe, and the waste liquid treatment cannot meet the specified discharge conditions, causing pollution to the environment.

For example, Chinese Patent No. ZL201220672907.9, a utility model patent titled "chemical experiment waste liquid treatment device", discloses a waste liquid treatment device, which is composed of a waste liquid collection tank and an acid-base neutralization tank. The outlet of the acid-base neutralization tank is connected to the inlet pipeline a, the upper pipeline b of the acid-base neutralization tank is connected to the acid tank, the pipeline c is connected to the alkali tank, and the outlet of the acid-base neutralization tank is connected to A solid-liquid separator and a liquid filter, the top of the acid-base neutralization tank is provided with a motor connected to the internal stirrer. The patented chemical experiment waste liquid treatment device is composed of separate parts and multiple parts. This type of device takes up a lot of space, is troublesome to connect, has high cost, and has poor practicability.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the defects of the prior art that the split multi-part combination occupies a large area, troublesome connection, high cost and poor practicability, and provide an integral, multi-functional, well-sealed and liquid-free Clogged acid and alkali waste collection and treatment device.

The purpose of this utility model is achieved through the following technical solutions: a device for collecting and treating acid-base waste liquid in chemical experiments, including a barrel body, which is characterized in that the barrel body is a closed structure and is provided with a Liquid port, a waste liquid port, an exhaust port, and a stirring device installation port. There is a filtrate layer near the bottom inside the barrel, and a liquid collection chamber under the filtrate layer. The side wall of the liquid collection chamber has a port to connect the drain. The pipe joint and the liquid discharge pipe joint are connected to the liquid discharge pipe through the stop valve; the liquid filling port is equipped with a sealing cover, the waste liquid collection port is equipped with a funnel-shaped liquid collection pipe and a closing mechanism, and the exhaust port is connected with an exhaust valve. The installation port of the device is connected with the stirring device.

The function of the liquid filling port has four points, one is as a large amount of waste liquid pouring inlet or outlet, the other is as a process hole for manufacturing the barrel body, the third is to measure the pH of the waste liquid in the barrel through this hole, and the fourth is to pass through this hole to carry out Cleaning operation in the barrel; the waste liquid collection port is connected to the funnel-shaped liquid collection pipe, and the acid-base waste liquid used in the chemical experiment process is introduced continuously and slowly. If the waste liquid detection shows that it is acidic, inject alkaline neutralizing liquid. If the waste liquid in the barrel is detected to be alkaline, inject acidic neutralizing liquid; the exhaust port is used to discharge the waste gas in the barrel intermittently and Decompression; the stirring device can be operated by hand or motor, and is used to stir the waste liquid undergoing neutralization treatment to speed up the neutralization speed. Monitoring; the filtrate layer can filter out the particles in the waste liquid and prevent the pipeline from being blocked when it is discharged.

    As a preference, the installation port of the stirring device is formed by a boss connected to the barrel, and there is a shaft hole in the middle of the boss, and the stirring device includes a stirring rod fitted in the shaft hole and extending into the barrel, and the lower end of the stirring rod is connected with a stirring blade , the upper end of the stirring rod has a limit resting shoulder, and the limit resting shoulder presses against the boss, and the upper end of the stirring rod is connected with a rocking mechanism.

Preferably, the funnel-shaped liquid collecting pipe includes a conical funnel and a straight pipe, and the closing mechanism is formed by a valve connected in the straight pipe.

As a preference, the funnel-shaped liquid collection pipe includes an upper conical funnel, and a closing mechanism is connected below the funnel. The other end of the connecting pipe is fixed to the waste collection port through the extension pipe and extends to the inside of the barrel. The position of the lower port of the straight pipe section is higher than the highest point of the S-shaped connecting pipe. The structure of the closing mechanism has three elements, one is the straight pipe section, the other is the S-shaped connecting pipe placed horizontally, and the third is the extended pipe. The key point is that the position of the lower port of the straight pipe section is higher than the highest point of the S-shaped connecting pipe Position; as long as the straight pipe section is filled with liquid, it can ensure that the S-shaped connecting pipe siphons and discharges the contents. The straight pipe section has a small volume and is easy to fill, so the clean water required for final cleaning is particularly small; A small amount of liquid remaining in the connecting pipe can play a role in sealing the pipe. This style of funnel-shaped liquid collection tube can be formed in one time by blow molding process.

Preferably, the top of the barrel body has an inclined surface, and the liquid filling port is arranged on the inclined surface; two handles in the shape of pits are arranged symmetrically on the side of the barrel body.

Preferably, both the bucket body and the sealing cover are made of polypropylene material.

As a preference, there are steps near the bottom of the barrel, and the filtrate layer includes a filter plate, the two opposite sides of the filter plate are provided with lugs, the filter plate is stuck on the steps, a group of filter holes are evenly distributed on the filter plate, and the filter plate is laid filter paper.

Preferably, the barrel body has a rectangular or circular cross section.

Preferably, the funnel-shaped liquid collecting pipe is made of glass or plastic; the rocking mechanism is made of a rocking handle or a micro motor with a speed reduction mechanism. Glass materials can also be produced in one go by blowing.

Preferably, the sealing cap is screwed and has a sealing gasket at its inner bottom or is formed by a flap connected to the liquid filling port through a hinge.

The beneficial effects of the utility model are:

1. There is a liquid filling port and a waste liquid collection port, which is convenient for quickly or slowly injecting waste liquid into the cylinder;

2. There is an exhaust port for controlled discharge of exhaust gas and decompression;

3. Set up a stirring device to stir the waste liquid undergoing neutralization treatment to speed up the neutralization speed;

4. The filtrate layer can filter out the particles in the waste liquid to prevent the pipeline from being blocked;

5. A funnel plus a straight pipe section plus a horizontally placed S-shaped connecting pipe plus a long pipe, and the position of the lower port of the straight pipe section higher than the highest point of the S-shaped connecting pipe constitute a siphon self-sealing structure, which is easy to inject and easy to clean. , closed and reliable, extremely easy to operate.       

Description of drawings

Fig. 1 is the structural principle schematic diagram of a kind of embodiment of the utility model;

Fig. 2 is a schematic diagram of the structure principle of another embodiment of the utility model.

In the figure, the barrel body 1; the liquid filling port 11; the waste liquid collection port 12; the exhaust port 13; the stirring device installation port 14; the slope 15; the handle 16; the boss 17; the step 18; the filtrate layer 2; the filter plate 21 ; ear 211; filter hole 212; filter paper 22; liquid collection cavity 3; discharge pipe joint 41; stop valve 42; sealing cover 5; funnel-shaped liquid collection pipe 6; conical funnel 61; Pipe 63; long pipe 64; valve 65; exhaust valve 7; stirring device 8; stirring rod 81; stirring blade 82;

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Embodiment 1: As shown in Figure 1, a kind of acid and alkali waste liquid collection and processing device in chemical experiment, comprises barrel body 1, and barrel body 1 is closed structure and is provided with a liquid filling port 11, a waste collection port on its top. Liquid port 12, an exhaust port 13 and a stirring device installation port 14, there is a filtrate layer 2 inside the barrel body 1 close to the bottom, below the filtrate layer 2 is a liquid collection chamber 3, and the side wall of the liquid collection chamber 3 has an opening Connect the liquid discharge pipe joint 41, the liquid discharge pipe joint 41 is connected to the liquid discharge pipe through the shut-off valve 42; the liquid filling port 11 is equipped with a sealing cover 5, and the sealing cover 5 is a cap that is threaded and has a gasket at its inner bottom. There is a liner at the inner bottom of the tank; the waste collection port 12 is equipped with a funnel-shaped liquid collection pipe 6 and a closing mechanism, the exhaust port 13 is connected with an exhaust valve 7, the stirring device installation port 14 is connected with the stirring device 8, and the barrel body 1 The cross-section of the barrel body 1 is rectangular, and there is an inclined surface 15 on the top of the barrel body 1. The liquid filling port 11 is arranged on the inclined surface 15; Made of polypropylene material, the funnel-shaped liquid collection pipe 6 is made of glass or plastic; the installation port 14 of the stirring device is composed of a boss 17 connected to the barrel body 1, and the boss 17 is an integral structure with the barrel body 1. In the middle of the table 17, there is a shaft hole leading directly to the inside of the barrel; the stirring device includes a stirring rod 81 that fits in the shaft hole and extends to the barrel body. The position leans against the shoulder 83 and presses on the boss 17, the stirring rod 81 upper end is connected with a rocking mechanism, and the rocking mechanism is made of a rocking handle 84, and the rocking handle 84 is connected with the stirring rod 81 upper end by a connecting sleeve 85 and fastened with screws.

The handle 16 of pit shape is the cuboid shape structure that is located at staving body 1 side symmetrically, and its mouth size and depth should be suitable for operator's hand to carry, and the length that generally can be taken pit is 8-10cm, height The depth is 4-6cm, and the depth is 3-5cm. The top of the pit should not be inclined downwards, so as not to slip out when carrying it.

The effect of liquid filling port 11 has four points, the one, as a large amount of waste liquid pouring inlet or pouring outlet, the 2nd, as the process hole of manufacturing barrel body 1, the 3rd, measure the pH value of the waste liquid in the barrel through this hole, the 4th, pass through this hole hole to carry out the cleaning operation in the bucket; the waste liquid collection port 12 is connected to the funnel-shaped liquid collection pipe 6, and the acid-base waste liquid used in the chemical experiment process is continuously and slowly introduced, and this channel doubles as an injection port for adding neutralizing liquid into the barrel For example, if the waste liquid in the barrel is detected to be acidic, inject alkaline neutralizing liquid; if the waste liquid in the barrel is detected to be alkaline, then inject acidic neutralizing liquid; the exhaust port 13 is used to discharge the barrel intermittently in a controlled manner The exhaust gas in the body 1 is decompressed; the stirring device can be shaken by hand, and is used to stir the waste liquid undergoing neutralization treatment to speed up the neutralization speed. The PH value is monitored; the filtrate layer 2 can filter out the particles in the waste liquid to prevent the pipeline from being blocked during discharge.

    The funnel-shaped liquid collecting pipe 6 includes a conical funnel 61 on the upper part, and a closing mechanism is connected below the funnel 61. The closing mechanism is a siphon self-sealing structure, and the structure includes a straight pipe section 62 connected to the lower end of the funnel. The lower end of the straight pipe section 62 is connected with a horizontally placed The S-shaped connecting pipe 63, the other end of the S-shaped connecting pipe 63 is fixed on the waste collection port 12 through the extension pipe 64 and extends to the inside of the barrel body 1. The extension pipe 64 is conducive to increasing the siphon suction force, and the straight pipe section 62 The position of the port is higher than the highest point of the S-shaped connecting pipe 63 . The self-sealing structure of the siphon has three elements, one is the straight pipe section 62, the other is the S-shaped connecting pipe 63 placed horizontally, and the third is the extension pipe 64. The three are indispensable. The key point is the connection of the lower port of the straight pipe section. The position is higher than the highest point position of the S-shaped connecting pipe 63 and the extension pipe should have a certain length; as long as the straight pipe section 62 is filled with liquid, it can be guaranteed that the S-shaped connecting pipe 63 has a siphon effect to drain the content liquid, and the straight pipe section 62 has a small diameter and small volume, and is easy to fill, so the clean water required for final cleaning is very small; after cleaning, add a small amount of liquid to the S-shaped connecting pipe 63, for example, for a 2-5mm pipe, only a spoonful of clean water is needed. Play a sealing role.

There is a step 18 near the bottom of the barrel body 1. The filtrate layer 2 includes a filter plate 21, and the two opposite sides of the filter plate 21 are provided with lugs 211. The filter plate 21 is stuck on the step 18. Hole 212, filter paper 22 is laid on the filter plate 21, and the filter plate 21 can be pulled up by catching the ear 211 with a hook, and the filter plate 21 is stuck on the step 18 again after cleaning.

Embodiment 2: As shown in Figure 2, the funnel-shaped liquid collecting pipe includes a conical funnel 61 and a straight pipe, and the closing mechanism is composed of a valve 65 connected in series in the straight pipe, and the rest of the structure is the same as that of Embodiment 1, as shown in Figure 2 .

Embodiment 3: The rocking mechanism is composed of a micro motor with a deceleration mechanism. There is a boss on the upper surface of the barrel body. The boss is connected to the frame, and the frame of the micro motor is connected to the frame.

Embodiment 4: The sealing cover is composed of a flap connected to the liquid filling port through a hinge, and the rest of the structure is the same as that of Embodiment 1.

The utility model is used for the collection and treatment of acid-base waste liquid in chemical experiments. It has the advantages of convenient and fast liquid injection, can discharge waste gas in a controlled manner and reduce pressure, and can be stirred to speed up neutralization treatment. The filtrate layer can filter out waste liquid The particles in it prevent clogging, and utilize the advantages of the siphon self-sealing structure, which is practical and easy to operate. If those skilled in the art make simple modifications or replacements to the above-mentioned content of the invention, such changes cannot be considered as departing from the scope of the present utility model. All such Modifications obvious to those skilled in the art are to be included within the scope of the claims of the present invention. the

Claims (10)

1. A device for collecting and treating acid and alkali waste liquid in chemical experiments, including a barrel body, characterized in that the barrel body is a closed structure and is provided with a liquid filling port, a waste liquid collection port, and an exhaust port on its upper part And a stirring device installation port. There is a filtrate layer near the bottom inside the barrel. Below the filtrate layer is a liquid collection chamber. The side wall of the liquid collection chamber has a port to connect to the discharge pipe joint. Pipe; the liquid filling port is equipped with a sealing cover, the waste liquid collection port is equipped with a funnel-shaped liquid collecting pipe and a closing mechanism, the exhaust port is connected with an exhaust valve, and the stirring device installation port is connected with the stirring device. 2. A device for collecting and treating acid-base waste liquid in a chemical experiment according to claim 1, characterized in that the installation port of the stirring device is formed by a boss connected to the barrel body, and there is a shaft hole in the middle of the boss, and the stirring device The device includes a stirring rod which fits in the shaft hole and extends into the barrel. The lower end of the stirring rod is connected with a stirring blade. Swivel mechanism. 3. according to claim 1 or 2 described acid-base waste liquid collection and processing device in a kind of chemical experiment, it is characterized in that, the funnel-shaped collecting pipe comprises conical funnel and straight pipe, and closing mechanism is connected in the straight pipe The valve composition. 4. according to claim 1 or 2 described acid-base waste liquid collection and treatment device in a kind of chemical experiment, it is characterized in that, the funnel-shaped liquid collection pipe comprises the conical funnel of top, and the closing mechanism is connected below the funnel, and the closing mechanism The composition includes a straight pipe section connected to the lower end of the funnel, and a horizontally placed S-shaped connecting pipe is connected below the straight pipe section. The position of the lower port is higher than the highest point of the S-shaped connecting pipe. 5. A device for collecting and treating acid-base waste liquid in a chemical experiment according to claim 4, characterized in that there is an inclined surface on the top of the barrel, and the liquid filling port is arranged on the inclined surface; two sides of the barrel are symmetrically arranged. Dimpled handles. 6. The device for collecting and treating acid-base waste liquid in a chemical experiment according to claim 4, wherein the barrel body and the sealing cover are all made of polypropylene material. 7. The device for collecting and treating acid-base waste liquid in a kind of chemical experiment according to claim 4, characterized in that, there are steps near the bottom of the barrel, and the filtrate layer includes a filter plate, and two opposite sides of the filter plate are arranged There are ears, the filter plate is stuck on the steps, a group of filter holes are evenly distributed on the filter plate, and filter paper is laid on the filter plate. 8 . The device for collecting and treating acid-base waste liquid in chemical experiments according to claim 7 , wherein the section of the barrel body is in the shape of a rectangle or a circle. 9. A device for collecting and treating acid-base waste liquid in a chemical experiment according to claim 2, characterized in that, the funnel-shaped liquid collecting pipe is made of glass or plastic; composed of micro motors. 10. Acid-base waste liquid collection and treatment device in a kind of chemical experiment according to claim 8, it is characterized in that, sealing cover is the cap that is threaded and has gasket at its inner bottom or is connected by hinge It is composed of the flap of the liquid port.