Insoluble solid powder feeding system
By combining the overflow feeding pipeline and the water injection controller, the problems of outlet blockage and pump damage in the insoluble solid powder feeding system are solved, achieving the effects of simplifying the equipment and reducing costs. It is suitable for sewage treatment and other industries with low requirements for the concentration of mixed liquids.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOPHARM GRP DEZHONG (FOSHAN) PHARM CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-02
AI Technical Summary
In the conventional feeding scheme, the outlet of insoluble solid powder is easily blocked, and the pump impeller is damaged during the pumping process, which affects the service life.
An overflow feed pipeline is used to overflow the mixed liquid from the mixing container to the downstream device. The feed amount is controlled synchronously by a water injection controller, eliminating the need for pumps and valves in the discharge stage, and using the overflow pipeline as the main feed pipeline.
The simplified device structure avoids outlet blockage and pump damage, reduces operating costs, and improves automation levels. It is suitable for wastewater treatment and other industries where the concentration of mixed liquids is not critical.
Smart Images
Figure CN224308174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solid powder feeding, and in particular to an insoluble solid powder feeding system. Background Technology
[0002] In the past, systems or equipment commonly used in wastewater treatment involved manually adding solid powder into the reactor and using a mixing device to directly mix the powder with the wastewater. While this method was convenient, it was gradually phased out due to the risks of dust generation and powder explosions, as well as the tendency for direct feeding to cause material agglomeration, resulting in uneven mixing or clogging of the discharge port.
[0003] Patent No. ZL202223599149.5 discloses a simple feeding system for solid powders, used to mix solid powders with water to form a slurry and transport it to a downstream device. The system includes a mixing device and a conveying device. The conveying device includes a submersible pump and a conveying pipe. The submersible pump is connected to the conveying pipe, which is located inside the mixing tank. The output end of the conveying pipe is connected to the downstream device. The submersible pump is characterized by being placed in water, with both its inlet and outlet located below the water surface.
[0004] However, during the addition of insoluble solid powder, the powder usually appears as a suspension in the upper layer after mixing with water, while a large amount of insoluble solid powder settles in the middle and lower layers. This makes the discharge port, which is located in the middle and lower parts, prone to blockage. At the same time, the insoluble solid powder can also cause significant damage to the pump impeller during pumping, affecting the pump's service life. Therefore, a new technical solution is needed to address this technical problem regarding the addition of insoluble solid powder. Utility Model Content
[0005] The main purpose of this invention is to propose an insoluble solid powder feeding system to solve the problems of easy blockage of the discharge port in conventional feeding schemes for insoluble solid powders, and damage to the pump impeller caused by insoluble solid powders during pumping, which affects the service life of the pump components.
[0006] To achieve the above objectives, this utility model proposes an insoluble solid powder feeding system for mixing insoluble solid powder with water to form a mixed liquid and conveying it to a downstream device. The feeding system includes a mixing container and a second water injection pipe connected to the mixing container. A mixing mechanism is provided in the mixing container. The feeding system also includes an overflow feeding pipe.
[0007] The upper part of the mixing container is provided with a discharge port that is connected to the input end of the overflow feed pipe, and the output end of the overflow feed pipe is connected to the downstream device.
[0008] A water volume controller is installed on the second water injection pipeline.
[0009] This invention eliminates the need for a dedicated discharge pipeline with pumps or valves during the discharge stage. Instead, it utilizes an overflow pipe—previously a backup safety warning system (which diverts liquid to other containers or locations when the target volume is exceeded, preventing overflow onto the ground or other areas)—as the main feeding pipeline. The mixed liquid is overflowed from the mixing container through this pipeline to downstream devices for further wastewater treatment, intermediate treatment, or production processing (depending on the application area and specific requirements). After water is injected into the mixing container to mix the insoluble solid powder, the second water injection pipeline simultaneously controls the overflow rate to downstream devices. This simplifies the device and avoids the technical problems of insoluble solid powder clogging at the discharge port and damage to pump impellers during pumping, thus affecting pump lifespan. Compared to existing technologies, this invention simplifies the device, reduces operating costs, is easily retrofitted into existing equipment, and has promising prospects for widespread application. In addition to its application in wastewater treatment, it can also be widely used in production systems of pharmaceutical, food, and chemical industries where the required concentration of the mixed liquid is not high. Those skilled in the art can further add a mechanism to the production system to precisely adjust the concentration of the mixed liquid to meet the requirements for the concentration of the mixed liquid.
[0010] The water transport pipelines involved in the second water injection pipeline and the overflow feeding pipeline of this utility model include, in addition to ordinary pipelines, existing facilities that replace the function of water transport pipelines, such as water channels, water tanks or other variant water transport pipeline forms, which can be selected by those skilled in the art as needed.
[0011] The mixing container in this utility model includes existing container forms with accommodating cavities such as tanks and barrels of various specifications, or variant container forms that also achieve the function of providing accommodating space.
[0012] In this invention, the water injection volume controller is used to control the amount of water injected into the mixing container from the second water injection pipeline. Preferably, the water injection volume controller is a second water inlet valve.
[0013] Specifically, the mixing mechanism is a stirring and mixing mechanism. The mixing mechanism can be selected according to specific needs to ensure that the insoluble solid powder in the mixing container is mixed with the injected liquid.
[0014] Preferably, the insoluble solid powder is added to the mixing container by manual or automatic powder feeding mechanism.
[0015] An automatic powder feeding mechanism is preferred, which can reduce manpower and improve the automation level of the feeding system or the overall sewage treatment system.
[0016] The insoluble solid powder feeding system of this invention is particularly suitable for use in wastewater treatment.
[0017] Furthermore, the insoluble solid powder is at least one of activated carbon, zeolite powder, and fly ash.
[0018] Furthermore, the downstream device is a wastewater treatment container.
[0019] A further preferred method is to inject the wastewater to be treated into the mixing container. By mixing the wastewater with insoluble solid powder, the use of clean water can be saved.
[0020] In a preferred embodiment, the feeding system further includes a water injection device, which includes a first water injection pipeline and a second water injection pipeline. The input end of the first water injection pipeline is connected to a sewage source, and the output end of the first water injection pipeline is connected to a sewage treatment container. A water pump and a first inlet valve are sequentially arranged in the first water injection pipeline from the input end to the output end. The second water injection pipeline is connected to the first water injection pipeline, and the input end of the second water injection pipeline is located in the middle section of the first water injection pipeline between the water pump and the first inlet valve. The water injection volume controller is the second inlet valve.
[0021] Preferably, the water pump is one of a pipeline pump, a self-priming pump, and a submersible pump.
[0022] This preferred solution is applied in the field of wastewater treatment. A water injection device is installed in the feeding system, and the injection of wastewater into the downstream wastewater treatment container and the mixing container is synchronously controlled by a single pump. Simultaneously, the wastewater injection volume from the mixing container is synchronously controlled to control the overflow feed volume from the overflow feed pipeline to the downstream device. That is, while wastewater is being input into the wastewater treatment container, the mixed solution (i.e., the wastewater treatment agent) is simultaneously added to the wastewater treatment container for wastewater treatment. In existing conventional feeding systems, the wastewater treatment container is first connected to the wastewater to be treated via a pump, and the discharge pipe separately controls the addition of the mixed solution to the wastewater treatment container via a discharge valve and discharge pump. The input of the wastewater to be treated and the input of the mixed solution are two separate operations, which cannot achieve the simultaneous addition of the mixed solution for wastewater treatment when only a single pump is used to input wastewater into the wastewater treatment container. This preferred solution eliminates the need for pumps and valves on the discharge pipe during the discharge stage by setting up a water injection device. It also enables the simultaneous addition of mixed liquid to treat wastewater during the input of wastewater, eliminating the need for additional operations by workers and the need to add clean water to the mixing container. This saves on labor costs, equipment costs, and system operating costs, representing a significant improvement. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 This is a simplified system diagram of the insoluble solid powder feeding system in this utility model;
[0025] Figure 2 This is a simplified system diagram of a feeding system in the prior art.
[0026] In the attached diagram: 1-Sewage source, 2-Feeding system, 21-Water injection device, 211-First water injection pipeline, 21101-First inlet valve, 212-Second water injection pipeline, 2121-Water injection volume controller, 21211-Second inlet valve, 213-Water pump, 22-Mixing container, 2201-Discharge port, 23-Mixing mechanism, 231-Stirring and mixing mechanism, 232-Aeration and mixing mechanism, 2321-Main aeration pipe, 2322-Aeration branch pipe, 2323-Aeration hole, 24-Overflow feeding pipeline, 25-Discharge pipe, 251-Discharge valve, 252-Discharge pump, 3-Downstream device, 31-Sewage treatment container, 4-Water source.
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] This application proposes an insoluble solid powder feeding system 2 for mixing insoluble solid powder with water to form a mixed liquid, and then conveying it to a downstream device 3, such as... Figure 1 As shown, the feeding system 2 includes: a mixing container 22 and a second water injection pipe 212 connected to the mixing container 22. A mixing mechanism 23 is provided in the mixing container 22. The feeding system 2 also includes: an overflow feeding pipe 24.
[0032] The upper part of the mixing container 22 is provided with a discharge port 2201 connected to the input end of the overflow feeding pipe 24, and the output end of the overflow feeding pipe 24 is connected to the downstream device 3.
[0033] A water injection volume controller 2121 is installed on the second water injection pipeline 212.
[0034] This application eliminates the need for a dedicated discharge pipeline with pumps or valves during the discharge stage. Instead, it utilizes the existing overflow pipe as the main discharge pipeline, allowing the mixed liquid to overflow from the mixing container 22 via the overflow feed pipeline 24 and be added to the downstream device 3 for further wastewater treatment, intermediate treatment, or production processing. After the insoluble solid powder is mixed with the liquid, water is injected into the mixing container 22 via the second water injection pipeline 212, while simultaneously controlling the overflow feed rate from the overflow feed pipeline 24 to the downstream device 3.
[0035] In a preferred embodiment, the mixing mechanism 23 is a stirring and mixing mechanism 231.
[0036] In this application, the water injection controller 2121 is used to control the amount of water injected into the mixing container 22 from the second water injection pipeline 211. Specifically, the water injection controller 2121 can be an inlet valve. By controlling the opening degree of the inlet valve, the water injection amount can be controlled, thereby controlling the overflow feed amount.
[0037] In a preferred embodiment, the water injection controller 2121 is a second inlet valve 21211.
[0038] Specifically, the mixing mechanism 231 is an existing mixing mechanism such as a stirring impeller, stirring rod, etc., which can be selected by those skilled in the art based on the actual situation.
[0039] Specifically, the insoluble solid powder is added to the mixing container 22 by manual or automatic powder feeding mechanism.
[0040] The insoluble solid powder feeding system of this application is particularly suitable for use in wastewater treatment.
[0041] In a further embodiment, the insoluble solid powder is at least one of activated carbon, pumice powder, and fly ash, used for wastewater treatment.
[0042] In a further embodiment, the downstream device 3 is a wastewater treatment container 31. Specifically, this could be a wastewater treatment pond, wastewater treatment tank, or wastewater treatment vessel. More specifically, the downstream device can also be an intermediate treatment device, used to perform intermediate treatment on the mixed liquid before further wastewater treatment.
[0043] Generally, clean water, such as tap water, is injected into the mixing container 22 through the second water injection pipe 212 to mix with the insoluble solid powder to form a mixed liquid; in a preferred embodiment, the mixing container 22 is injected with wastewater to be treated to mix with the insoluble solid powder to form a mixed liquid.
[0044] In a further preferred embodiment, such as Figure 1 As shown, the feeding system 2 also includes a water injection device 21, which includes a first water injection pipe 211 and a second water injection pipe 212. The input end of the first water injection pipe 211 is connected to the sewage source 1, and the output end of the first water injection pipe 211 is connected to the downstream device 3, which is a sewage treatment container 31. A water pump 213 and a first inlet valve 21101 are sequentially arranged from the input end to the output end of the first water injection pipe 211. The second water injection pipe 212 is connected to the first water injection pipe 211, and the input end of the second water injection pipe 212 is located in the middle section of the first water injection pipe 211 between the water pump 213 and the first inlet valve 21101. The water injection volume controller 2121 is the second inlet valve 21211. Specifically, the water pump 213 is one of a pipeline pump, a self-priming pump, and a submersible pump.
[0045] This preferred solution is applied in the field of wastewater treatment. A water injection device 21 is installed in the feeding system 2. A water pump 213 synchronously controls the wastewater injection into the downstream wastewater treatment container 31 and the wastewater injection into the mixing container 22. Simultaneously, the wastewater injection rate into the mixing container 22 synchronously controls the overflow discharge rate from the overflow feeding pipeline 24 to the downstream device 3. In other words, this preferred solution achieves simultaneous addition of a mixed solution (i.e., a wastewater treatment agent) to the wastewater treatment container 31 while simultaneously feeding wastewater into the wastewater treatment container 31. Conventional feeding systems can be referenced. Figure 2 The sewage treatment container 31 is first connected to the sewage to be treated via a water pump 213. The discharge pipe 251 is connected to the sewage treatment container 31 via a discharge valve 251 and a discharge pump 252 (usually a pipeline pump). The connection of sewage and the connection of the mixed liquid are two separate operations. It is not possible to use a single pump to input sewage into the sewage treatment container and simultaneously add the mixed liquid for sewage treatment. Workers need to perform the two operations separately.
[0046] The method of using the insoluble solid powder feeding system 2 for wastewater treatment described in this application is as follows: Figure 1 The usage steps include the following:
[0047] Step 1: Put the insoluble solid powder into the mixing container 22, close the first water inlet valve 21101, open the water injection controller 2121, start the water pump 213, and inject sewage into the mixing container 22 through the second water injection pipeline 212 until the liquid level in the mixing container 22 reaches the bottom of the discharge port 2201 and stop the water injection. Start the mixing mechanism 23 to mix and obtain the mixed liquid.
[0048] Step 2: When sewage treatment is required, start the water pump 213, open the first inlet valve 21101 and the water injection controller 2121 to add the mixed liquid; when the sewage treatment is completed, turn off the water pump 213 to stop adding the liquid.
[0049] In one specific embodiment, the water injection controller 2121 in step one of this method is the second water inlet valve 21211.
[0050] In one specific embodiment, the mixing mechanism 23 in step one of this method is a stirring and mixing mechanism 231. After turning on the stirring and mixing mechanism 231 in step one, the mixture is stirred for 5 minutes to obtain a mixed liquid.
[0051] Specifically, when the concentration of the mixed liquid in mixing container 23 decreases, insoluble solid powder is continuously added to replenish it. The mixed liquid added to the downstream unit usually refers to the suspension located in the upper layer of the mixing container.
[0052] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An insoluble solid powder feeding system for mixing insoluble solid powder with water to form a mixed liquid and conveying it to a downstream device (3), wherein the feeding system (2) comprises: The mixing container (22) and the second water injection pipe (212) connected to the mixing container (22) are characterized in that the mixing mechanism (23) is provided in the mixing container (22), and the feeding system (2) further includes: an overflow feeding pipe (24). The mixing container (22) has an outlet (2201) at the top that is connected to the input end of the overflow feed pipe (24), and the output end of the overflow feed pipe (24) is connected to the downstream device (3). A water injection volume controller (2121) is installed on the second water injection pipeline (212).
2. The insoluble solid powder feeding system as described in claim 1, characterized in that, The mixing mechanism (23) is a stirring and mixing mechanism (231).
3. The insoluble solid powder feeding system as described in claim 1, characterized in that, The insoluble solid powder is added to the mixing container (22) by manual or automatic powder feeding mechanism.
4. The insoluble solid powder feeding system as described in claim 1, characterized in that, The feeding system (2) is used in wastewater treatment.
5. The insoluble solid powder feeding system as described in claim 4, characterized in that, The downstream device (3) is a sewage treatment container (31).
6. The insoluble solid powder feeding system as described in claim 4, characterized in that, The mixing container (22) is filled with wastewater to be treated.
7. The insoluble solid powder feeding system as described in claim 5, characterized in that, The feeding system (2) further includes a water injection device (21), which includes a first water injection pipeline (211) and a second water injection pipeline (212). The input end of the first water injection pipeline (211) is connected to the sewage source (1), and the output end of the first water injection pipeline (211) is connected to the sewage treatment container (31). The first water injection pipeline (211) is provided with a water pump (213) and a first inlet valve (21101) in sequence from the input end to the output end. The second water injection pipeline (212) is connected to the first water injection pipeline (211), and the input end of the second water injection pipeline (212) is located in the middle section of the first water injection pipeline (211) between the water pump (213) and the first inlet valve (21101). The water injection volume controller (2121) is the second inlet valve (21211).
8. The insoluble solid powder feeding system (2) as described in claim 7, characterized in that, The water pump (213) is one of the following: pipeline pump, self-priming pump, and submersible pump.