Dosing equipment

Abstract

The present disclosure provides a dosing device, comprising: a reservoir configured to accommodate a liquid medicine, the reservoir being provided with a first opening at a side wall close to the bottom and a second opening at the bottom wall; the pipeline is connected with the storage device at the position of the second opening, the pipeline is provided with a valve and a pump, and when the valve is opened, the pump can pump out the liquid medicine in the storage device through the pipeline.

Description

Technical Field

[0001] The present disclosure relates to a chemical dosing device. Background Art

[0002] In the production or domestic sewage of cigarette production enterprises, there are a large number of tiny suspended solids and colloidal particles dispersed, which are difficult to remove by conventional means. By adding chemical drugs such as polyaluminum chloride (PAC), acrylamide (PAM), etc., the surface charge properties of the above-mentioned particles are changed, so that an attraction is generated between them, which can promote the aggregation of these particles into large lumps. These lumps are larger and denser, and are more likely to settle and thus facilitate removal. Therefore, adding chemical drugs can effectively improve the sewage treatment efficiency and water quality.

[0003] Figure 1 A schematic diagram of a chemical dosing device according to the prior art is shown.

[0004] The chemical dosing device 1 according to the prior art includes a reservoir 11. An aqueous solution of a chemical drug is contained in the reservoir 11. The reservoir 11 is provided with an opening 12 on the side wall near the bottom. When dosing the sewage tank is required, the drug solution in the reservoir 11 is pumped out through the opening 12 by a pump (not shown) and sent into the sewage tank, so as to promote the aggregation and polymerization of the particles in the tank, thereby improving the sewage quality.

[0005] In the reservoir 11 of the chemical dosing device 1 according to the prior art, although chemical drugs such as PAC and PAM are easily soluble in water, due to the influence of factors such as the dosing amount, pH value, and temperature, part of the chemical drugs often cannot be dissolved and precipitate to the bottom of the reservoir 11. Therefore, the reservoir 11 needs to be emptied at regular intervals to clean the accumulated drugs at the bottom of the reservoir 11. This not only causes waste of drugs, increases the manual maintenance cost, but also prolongs the sewage treatment time. If the accumulated drugs are not cleaned in time, the accumulated drugs may enter the pipeline, causing pipeline blockage. Unclogging the pipeline requires a large amount of manpower and material resources, and will also seriously affect the sewage treatment effect. Utility Model Content

[0006] In order to overcome at least one of the above defects, according to a first aspect of the present disclosure, a chemical dosing device is provided, the chemical dosing device includes: a reservoir configured to contain a liquid medicine, the reservoir is provided with a first opening on the side wall near the bottom and a second opening on the bottom wall; a pipeline, the pipeline is connected to the reservoir at the second opening, the pipeline is provided with a valve and a pump, and is configured to be able to pump out the liquid medicine in the reservoir through the pipeline when the valve is opened.

[0007] Preferably, the bottom wall of the reservoir includes an inclined surface that slopes downward to the second opening.

[0008] Preferably, the inclined surface includes a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface are inclined downward relative to each other to the second opening.

[0009] Preferably, the pipe is a first pipe, the valve is a first valve, and the chemical dosing device further includes a second pipe provided with a second valve and a blower, and configured such that when the second valve is opened, the blower can deliver compressed air to the bottom of the reservoir via the second opening.

[0010] Preferably, the first pipe is further provided with a flow meter configured to measure the flow rate in the first pipe.

[0011] Preferably, the blower is arranged at a height higher than the liquid level of the liquid medicine in the reservoir.

[0012] Preferably, the first valve and the second valve are arranged close to the second opening.

[0013] Preferably, the first pipe and the second pipe extend to opposite sides of the reservoir, and the first pipe extends to the same side as the first opening.

[0014] Preferably, the pipe is transparent or translucent.

[0015] Preferably, the reservoir is transparent or translucent. Description of the Drawings

[0016] After reading the following detailed description in conjunction with the accompanying drawings, various aspects of the present disclosure will be better understood. In the drawings:

[0017] Figure 1 A schematic diagram of a chemical dosing device according to the prior art is shown.

[0018] Figure 2 A schematic diagram of a chemical dosing device according to an embodiment of the present disclosure is shown. Detailed Description

[0019] The present disclosure will be described below with reference to the accompanying drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully explain the protection scope of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments. In addition, the drawings only schematically show the embodiments and are not necessarily drawn to scale.

[0020] It should be understood that in all the accompanying drawings, the same reference numerals denote the same elements. The terms used in the specification are only for describing specific embodiments and are not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail.

[0021] Reference is now made to Figure 2 describe a chemical dosing device 100 according to an embodiment of the present disclosure.

[0022] The chemical dosing device 100 according to an embodiment of the present disclosure includes a reservoir 101. An aqueous solution of a chemical drug is contained in the reservoir 101. The reservoir 101 is provided with a first opening 102 on the side wall near the bottom. The bottom surface of the reservoir 101 is provided with a second opening 103. Preferably, the bottom surface of the reservoir 101 includes inclined surfaces 1011, 1012 that are inclined downward relative to each other to the second opening 103. The inclination of the inclined surfaces 1011, 1012 relative to the horizontal plane can be set as needed. Preferably, the second opening 103 is located at the center of the bottom wall of the reservoir 101. A first pipe 201 and a second pipe 202 are connected to the reservoir 101 at the second opening 103. The first pipe 201 is provided with a first valve 104 and a pump 106, and the second pipe 202 is provided with a second valve 105. The end of the second pipe 202 opposite to the second opening 103 is provided with a blower 107. The blower 107 serves as an aeration blower. Preferably, the blower 107 is arranged at a height higher than the liquid level in the reservoir 101 to prevent the liquid medicine in the reservoir 101 from flowing into the blower 107 when the blower 107 delivers compressed air to the reservoir 101. The first valve 104 and the second valve 105 can be manual-automatic electric valves. Preferably, the first valve 104 and the second valve 105 are arranged close to the second opening 103 to shorten the pipe lengths from the second opening 103 to the first valve 104 and the second valve 105 respectively and reduce the possibility of drug deposition in this part of the pipes. Preferably, the first pipe 201 and the second pipe 202 extend to opposite sides of the reservoir 101 ( Figure 2 the left and right sides in Figure 2 ), and the first pipe 201 extends to the same side as the first opening 102 ( Figure 2 the left side in

[0023] ), so as to facilitate the connection of the first pipe 201 and the first opening 102 to the sewage tank. Preferably, a flow meter (not shown) is provided in the first pipe 201 to measure the flow rate in the first pipe 201.

[0023] The working process of the chemical dosing device 100 is described below.

[0024] Each time medicine is added to the sewage tank, the medicine solution in the reservoir 101 is pumped out through the first opening 102 by a pump (not shown) and sent into the sewage tank, prompting the particles in the sewage tank to coagulate and polymerize, thereby improving the quality of the sewage. Meanwhile, the second valve 105 is opened and the blower 107 is turned on, so that the blower 107 delivers compressed air to the bottom of the reservoir 101 through the second opening 103 to promote the dissolution of the medicine at the bottom of the reservoir 101 and prevent the medicine from precipitating. Preferably, the pressure of the compressed air delivered by the blower 107 is 0.3 - 0.4 Mpa.

[0025] In addition, every predetermined time (for example, every 24 hours), the first valve 104 is opened and the pump 106 is turned on, so that the liquid medicine at the bottom of the reservoir 101 that may contain undissolved medicine is pumped out to the sewage tank through the first pipeline 201 under the action of the pump 106 to avoid the accumulation of medicine at the bottom of the reservoir 101. Preferably, when pumping out the liquid medicine at the bottom of the reservoir 101 through the pump 106, the flow rate in the first pipeline 201 is measured by a flowmeter provided in the first pipeline 201. If the measured flow rate is lower than the predetermined threshold and the flow rate in the first pipeline 201 decreases significantly, it is determined that the medicine has accumulated at the bottom of the reservoir 101. At this time, the second valve 105 is opened and the blower 107 is turned on to deliver compressed air to the bottom of the reservoir 101 to disperse the accumulated medicine at the bottom of the reservoir 101.

[0026] According to the medicine adding device 100 of the present disclosure, through the above structure and working process, the possibility of the medicine precipitating and accumulating in the reservoir 101 is reduced, and the accumulated medicine can be quickly cleaned up when the medicine accumulates. Therefore, the medicine adding device of the present disclosure avoids the accumulation of medicine, reduces the risk of pipeline blockage, increases the utilization rate of the medicine, and does not require regular cleaning of the reservoir, thereby reducing the cleaning cost and improving the sewage treatment efficiency.

[0027] In addition, according to the medicine adding device 100 of the present disclosure, since the bottom wall of the reservoir 101 includes inclined planes 1011, 1012 that slope downward, it is easy to direct the undissolved medicine to the second outlet 103, thereby promoting the dissolution of the medicine by using the blower 107 or pumping the medicine out to the sewage tank by using the pump 106.

[0028] The above describes an embodiment of the present disclosure, but it should be understood that the present disclosure is not limited thereto. Those skilled in the art can think of various variations without departing from the scope of the present disclosure.

[0029] For example, in the embodiments described above, the first pipeline 201 and the second pipeline 202 are provided. The first pipeline 201 is provided with the first valve 104 and the pump 106, and the second pipeline 202 is provided with the second valve 105 and the fan 107. However, it can be conceived that only the first pipeline 201, the first valve 104 and the pump 106 are provided. In this case, the effect superior to the prior art can still be obtained, and the liquid medicine that may contain undissolved drugs at the bottom of the reservoir 101 is periodically pumped out through the first pipeline 201 to the sewage tank to avoid the accumulation of drugs at the bottom of the reservoir 101.

[0030] For example, in the embodiments described above, the inclined surfaces 1011 and 1012 are provided on the bottom wall of the reservoir 101, and the second outlet 103 is provided at the center of the bottom wall of the reservoir 101. However, it can be conceived that the second outlet 103 is provided at one end of the bottom wall of the reservoir 101, and only one inclined surface is provided, which extends obliquely upward from the second outlet 103 to the other end of the bottom wall of the reservoir 101.

[0031] For example, in the embodiments described above, a flow meter is provided in the first pipeline 201 to measure the flow rate in the first pipeline 201 to determine whether drug accumulation occurs. However, it can be conceived that no flow meter is provided in the first pipeline 201, but the drug pre-accumulation at the bottom of the reservoir 101 is judged by the naked eye. For example, the first pipeline 201 can be set to be transparent or translucent to observe whether the flow rate of the liquid medicine pumped out by the first pipeline 201 is significantly reduced, or the reservoir 101 can be set to be transparent or translucent to observe whether drug pre-accumulation occurs at the bottom of the reservoir 101.

[0032] Those skilled in the art should understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A dosing device, characterized in that: The dosing equipment comprises: A reservoir, the reservoir being configured to contain a liquid medicine, the reservoir being provided with a first opening at a side wall close to the bottom and a second opening at a bottom wall; A pipeline is connected to the reservoir at the second opening, the pipeline is provided with a valve and a pump, and is configured such that when the valve is opened, the pump can pump the liquid medicine in the reservoir out through the pipeline.

2. The dosing device according to claim 1, characterized in that: The bottom wall of the reservoir includes a sloped surface that slopes downward to the second opening.

3. The dosing device according to claim 2, characterized in that: The inclined surface includes a first inclined surface and a second inclined surface, and the first inclined surface and the second inclined surface are inclined downward to the second opening opposite to each other.

4. The dosing device according to claim 1, characterized in that: The pipeline is a first pipeline, the valve is a first valve, and the dosing device further comprises a second pipeline, wherein the second pipeline is provided with a second valve and a blower, and is configured such that when the second valve is opened, the blower can deliver compressed air to the bottom of the reservoir via the second opening.

5. The dosing device according to claim 4, characterized in that: The first pipeline is also provided with a flow meter, which is configured to measure the flow rate in the first pipeline.

6. The dosing device according to claim 4, characterized in that: The fan is arranged at a height higher than the liquid level of the medical solution in the reservoir.

7. The dosing device according to claim 4, characterized in that: The first valve and the second valve are disposed adjacent to the second opening.

8. The dosing device according to claim 4, characterized in that: The first conduit and the second conduit extend to opposite sides of the reservoir, and the first conduit extends to the same side as the first opening.

9. The dosing device according to claim 1, characterized in that: The tube is transparent or translucent.

10. The dosing device according to claim 1, characterized in that: The reservoir is transparent or translucent.

Images