Chemical laboratory wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a chemical laboratory wastewater treatment device which comprises a barrel, a plurality of supporting frames are fixedly arranged on the circumferential outer wall of the bottom of the barrel, a liquid inlet hopper is arranged in the middle of the top end of the barrel, and the liquid inlet hopper penetrates through the barrel to be fixedly connected with a reaction barrel and communicated with an inner cavity of the reaction barrel. An acid solution adding hopper and an alkaline solution adding hopper are arranged on the left side and the right side of the liquid inlet hopper respectively, both the acid solution adding hopper and the alkaline solution adding hopper penetrate through the top plate of the barrel and then are fixedly connected with connecting pipes, and the bottom ends of the connecting pipes incline downwards and are communicated with the reaction barrel. Compared with the prior art, the device has the advantages that an acid solution or an alkaline solution can be injected into the reaction cylinder according to the acid-base property of waste liquid needing to be treated through the acid solution adding hopper and the alkaline solution adding hopper, the acid solution and the alkaline solution cannot be mixed, the accuracy is high, the adsorption disc can effectively adsorb and isolate fixed waste in the waste liquid, and the device is efficient and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a chemical laboratory wastewater treatment device. Background Art

[0002] Chemical laboratory wastewater may contain chemicals that are harmful to human health, such as heavy metal ions, organic solvents, etc. Treating these wastewaters can reduce the risk of employees and the public being exposed to these harmful substances. Wastewater may contain some valuable chemicals or raw materials, which can be recovered through appropriate treatment devices, saving resources and reducing costs. As a scientific research unit, the laboratory has the responsibility to reduce the negative impact on the environment. Through efficient wastewater treatment devices, the consumption of natural resources and environmental pollution can be reduced.

[0003] Existing laboratory wastewater treatment equipment generally transports the waste liquid through the same delivery pipeline when injecting acid and alkali solutions into the waste liquid. This will cause the acid and alkali solutions to mix, affecting the accuracy of pH adjustment. In addition, the fixed waste in the waste liquid is difficult to isolate, and the isolation of the filter is relatively limited. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The technical problem to be solved by the utility model is that when acid and alkali solutions are injected into waste liquid, they are generally transported through the same delivery pipeline, which will cause the acid and alkali solutions to mix, thus affecting the accuracy of pH adjustment and the isolation of the filter screen is relatively limited.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the technical solution provided by the utility model is:

[0008] The chemical laboratory wastewater treatment device comprises a cylinder, a plurality of support frames are fixedly arranged on the circumferential outer wall of the bottom of the cylinder, and also comprises a liquid inlet hopper, an acid solution adding hopper, an alkaline solution adding hopper, a connecting pipe, a reaction cylinder, an adsorption disk, a filter plate, and a liquid outlet pipe;

[0009] A liquid inlet hopper is provided at the middle of the top of the cylinder body. The liquid inlet hopper is fixedly connected to the reaction cylinder after passing through the cylinder body and is communicated with the inner cavity of the reaction cylinder. An acid solution adding hopper and an alkaline solution adding hopper are respectively provided on the left and right sides of the liquid inlet hopper. The acid solution adding hopper and the alkaline solution adding hopper are both fixedly connected to a connecting pipe after passing through the top plate of the cylinder body. The bottom ends of the connecting pipes are both inclined downward and communicated with the reaction cylinder.

[0010] An adsorption disk is fixed between the inner walls of the middle part of the reaction cylinder, and a number of strong adsorption materials for harmful substances are embedded in the adsorption disk. A filter plate is arranged at the bottom of the reaction cylinder, and a number of evenly distributed filter holes are reserved on the filter plate. The bottom of the cylinder is connected with a liquid outlet pipe.

[0011] As an improvement, the adsorption disk is provided with two upper and lower ones, and is an inverted conical cylindrical structure with a downward depression in the middle.

[0012] As an improvement, the connection between the connecting tube and the reaction cylinder is located at the upper part of the reaction cylinder.

[0013] As an improvement, the diameter of the top opening of the liquid inlet hopper is larger than the diameters of both the acid solution liquid adding hopper and the alkaline solution liquid adding hopper.

[0014] As an improvement, an inverted conical liquid collecting cylinder is provided at the bottom end of the cylinder body, the liquid outlet pipe is connected to the inner cavity of the liquid collecting cylinder, and the outer end is bent and extended to be connected to the collecting device.

[0015] (III) Beneficial effects

[0016] The advantages of the utility model compared with the prior art are:

[0017] Through the acid solution adding bucket and the alkaline solution adding bucket, the acid solution or alkaline solution can be injected into the reaction cylinder according to the acidity and alkalinity of the waste liquid to be treated, which will not cause the acid and alkaline solutions to mix and has high accuracy. The adsorption plate can effectively adsorb and isolate the fixed waste in the waste liquid, which is efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the appearance of the utility model Figure 1 .

[0019] Figure 2 This is the appearance of the utility model Figure 2 .

[0020] Figure 3 This is a partial structural section diagram of the utility model. Figure 1 .

[0021] Figure 4 This is a partial structural section diagram of the utility model. Figure 2 .

[0022] Figure 5 This utility model Figure 3 A partial enlarged schematic diagram of the structure.

[0023] Figure 6 This utility model Figure 4 A partial enlarged diagram of the structure Figure 1 .

[0024] As shown in the figure: 1. Cylinder body; 2. Support frame; 3. Liquid inlet bucket; 4. Acid solution adding bucket; 5. Alkaline solution adding bucket; 6. Connecting pipe; 7. Liquid collecting cylinder; 8. Reaction cylinder; 9. Adsorption disk; 10. Filter plate; 11. Liquid outlet pipe; 12. Filter hole. DETAILED DESCRIPTION

[0025] In the description of the present utility model, it should be understood that the terms "center", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. In addition, the term "including" and any variation thereof are intended to cover non-exclusive inclusions.

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Please see attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 5 As shown, it includes a cylinder 1, a plurality of support frames 2 are fixedly provided on the circumferential outer wall of the bottom of the cylinder 1, a liquid inlet hopper 3 is provided in the middle of the top of the cylinder 1, the liquid inlet hopper 3 is fixedly connected with the reaction cylinder 8 after passing through the cylinder 1, and is communicated with the inner cavity of the reaction cylinder 8, an acid solution adding hopper 4 and an alkaline solution adding hopper 5 are respectively provided on the left and right sides of the liquid inlet hopper, the top opening diameter of the liquid inlet hopper 3 is larger than the diameters of the acid solution adding hopper 4 and the alkaline solution adding hopper 5, the acid solution adding hopper 4 and the alkaline solution adding hopper 5 are both fixedly connected with a connecting pipe 6 after passing through the top plate of the cylinder 1, the bottom ends of the connecting pipe 6 are both inclined downward to be communicated with the reaction cylinder 8, and the connection between the connecting pipe 6 and the reaction cylinder 8 is located at the upper part of the reaction cylinder 8.

[0028] Please see attached Figure 4 , Attachment Figure 6 As shown, an adsorption disk 9 is fixed between the inner walls in the middle of the reaction cylinder 8. The adsorption disk 9 is provided with two upper and lower ones, and is an inverted conical cylindrical structure with a downward depression in the middle. A number of strong adsorption materials for harmful substances are embedded in the adsorption disk 9. A filter plate 10 is provided at the bottom of the reaction cylinder 8. A number of evenly distributed filter holes 12 are reserved on the filter plate 10. A liquid outlet pipe 11 is connected to the bottom end of the cylinder body 1. An inverted conical liquid collecting cylinder 7 is provided at the bottom end of the cylinder body 1. The liquid outlet pipe 11 is connected to the inner cavity of the liquid collecting cylinder 7, and the outer end is bent and extended to be connected to the collecting device.

[0029] Through the above structure, laboratory waste liquid can be injected into the reaction cylinder 8 through the liquid inlet hopper 3, and acidic solution or alkaline solution can be injected into the reaction cylinder 8 according to the acidity and alkalinity of the waste liquid to be treated through the acidic solution feeding hopper 4 and the alkaline solution feeding hopper 5 respectively, without causing mixing of the acid and alkaline solutions. The fixed waste in the waste liquid can be adsorbed by the adsorption disk 9 and filtered through the filter plate 10.

[0030] During the specific implementation of the utility model, when it is necessary to treat the wastewater of a chemical laboratory, the wastewater is first transported to a reaction cylinder 8 through a liquid inlet hopper 3, and then, according to the acidity and alkalinity of the wastewater, an acidic solution adding hopper 4 and an alkaline solution adding hopper 5 are respectively used to inject an acidic or alkaline solution into the reaction cylinder 8 to carry out a neutralization reaction, and the pH value is adjusted to a moderate level. The adjusted wastewater solution passes through two layers of adsorption disks 9 to adsorb and isolate fixed wastes in the wastewater, and then is transported to a liquid collecting cylinder 7 at the bottom end of a cylinder body 1 through a filter plate 10, and then is transported to a collecting device through a liquid outlet pipe 11, to complete the wastewater treatment.

[0031] The above describes the utility model and its implementation methods, which are not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention of the utility model, they can creatively design a structure and embodiment similar to the technical solution, which should belong to the protection scope of the utility model.

Claims

1. A chemical laboratory wastewater treatment device, comprising a cylinder (1), wherein a plurality of support frames (2) are fixedly provided on the circumferential outer wall of the bottom of the cylinder (1), and characterized in that: It also includes a liquid inlet hopper (3), an acid solution liquid addition hopper (4), an alkaline solution liquid addition hopper (5), a connecting pipe (6), a reaction cylinder (8), an adsorption plate (9), a filter plate (10), and a liquid outlet pipe (11); A liquid inlet hopper (3) is provided at the middle of the top of the cylinder (1). The liquid inlet hopper (3) passes through the cylinder (1) and is fixedly connected to the reaction cylinder (8), and is communicated with the inner cavity of the reaction cylinder (8). An acid solution adding hopper (4) and an alkaline solution adding hopper (5) are respectively provided on the left and right sides of the liquid inlet hopper. The acid solution adding hopper (4) and the alkaline solution adding hopper (5) both pass through the top plate of the cylinder (1) and are fixedly connected to a connecting pipe (6). The bottom end of the connecting pipe (6) is inclined downward and communicated with the reaction cylinder (8); An adsorption disk (9) is fixed between the inner walls of the middle of the reaction cylinder (8), and a plurality of adsorption materials with strong ability to adsorb harmful substances are embedded in the adsorption disk (9). A filter plate (10) is provided at the bottom end of the reaction cylinder (8), and a plurality of evenly distributed filter holes (12) are reserved on the filter plate (10). The bottom end of the cylinder body (1) is connected to a liquid outlet pipe (11).

2. The chemical laboratory wastewater treatment device according to claim 1, characterized in that: The adsorption disk (9) is provided with two upper and lower ones, and is an inverted conical cylindrical structure with a downward depression in the middle.

3. The chemical laboratory wastewater treatment device according to claim 1 is characterized in that: The connection points between the connecting tube (6) and the reaction cylinder (8) are both located at the upper part of the reaction cylinder (8).

4. The chemical laboratory wastewater treatment device according to claim 1 is characterized in that: The diameter of the top opening of the liquid inlet hopper (3) is larger than the diameters of both the acid solution liquid adding hopper (4) and the alkaline solution liquid adding hopper (5).

5. The chemical laboratory wastewater treatment device according to claim 1 is characterized in that: An inverted conical liquid collecting cylinder (7) is provided at the bottom end of the cylinder body (1); a liquid outlet pipe (11) is connected to the inner cavity of the liquid collecting cylinder (7), and the outer end is bent and extended to be connected to a collecting device.

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