CN218910305U

CN218910305U - Throwing device

Info

Publication number: CN218910305U
Application number: CN202223070328.XU
Authority: CN
Inventors: 还道远; 朱倩; 李骎; 王伟龙; 张瑜; 贾晓解; 徐继洋; 张培伦
Original assignee: Tianjin High Energy Times Water Treatment Technology Co ltd
Current assignee: Tianjin High Energy Times Water Treatment Technology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-25
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a feeding device, which comprises a fixed guide rod, wherein one end of the fixed guide rod is fixed at a feeding point, and the other end of the fixed guide rod is fixed with a lifting device. The bottom of the lifting device is connected with the fermentation tank, plant wastes are placed in the fermentation tank, the fermentation tank is immersed in the wastewater under the control of the lifting device, the plant wastes are fermented under the action of microorganisms in the water, volatile fatty acids, organic matters and water-soluble fibers are decomposed, the C/N ratio and the B/C ratio of the water body are intuitively improved, the biodegradability of the wastewater is indirectly improved, and no secondary pollution is caused. The adding device not only can solve the problem of disposing plant wastes and realize the emission reduction of ecological environment wastes, but also has the advantages of improving the biochemistry of water and reducing the wastewater treatment cost.

Description

Throwing device

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a feeding device.

Background

With the development of society, the technology is rapidly developed, the total amount of wastewater discharged into natural environment in the industrial production process is larger and larger, and the variety of wastewater is also more and more diversified. The mainstream position of traditional municipal wastewater is changing, and industrial wastewater is gradually becoming a focus of important attention of human society. Municipal wastewater has the characteristics of high biodegradability, low pollution intensity, low treatment cost and the like, but industrial wastewater is various and has poor biodegradability, and effluent is difficult to reach national relevant standards. Therefore, some external measures are needed, such as adding an external carbon source into the system, manually adjusting the C/N ratio of the wastewater, improving the biodegradability of the wastewater and ensuring the normal operation of the biochemical system. Therefore, adding additional carbon source is an indispensable working content in the debugging and operation stage of the industrial wastewater treatment field.

At present, the traditional carbon source mainly comprises liquid organic matters including methanol, sodium acetate, acetic acid, flour, glucose, composite carbon source and the like. They can better improve the biodegradability of wastewater, but are expensive. For wastewater with extremely low C/N ratio, especially for water plants with large water quantity, the carbon source addition amount is huge, the operation cost is high, and the benefit brought by the operation of the water plant is even exceeded. Therefore, development of a carbon source which can ensure significant water quality improvement effect and control very low running cost and is easy to collect and add on site is necessary.

The greening engineering matched with the industrial wastewater treatment plant and the industrial park can be periodically trimmed, and the trimmed plant wastes are collected and packed and then are specially treated, so that not only is the funds spent, but also huge waste of resources is caused. The plant wastes have high carbon values, and the carbon values can be applied to the field of industrial wastewater treatment, and the plant wastes can be collected nearby and are easy to supplement and store. How to provide a feeding device which can ferment plant waste, and the generated plant fermentation liquid is used as a carbon source to treat industrial wastewater is a problem to be solved urgently.

Disclosure of Invention

The utility model provides a feeding device, which aims at the problems existing in the prior art and comprises a fixed guide rod, wherein one end of the fixed guide rod is fixed at a feeding point, and the other end of the fixed guide rod is fixed with a lifting device. The bottom of the lifting device is connected with the fermentation box.

As a further improvement of the utility model, the fixed guide rod is in an inverted L shape.

As a further improvement of the utility model, the side wall of the fermentation box is provided with holes, plant wastes are placed in the fermentation box, the bottom of the fermentation box is provided with a balancing weight, the top of the fermentation box is provided with two lifting lugs and a feeding port, and the feeding port is provided with a sealing cover which is suitable for the fermentation box.

As a further improvement of the utility model, the two lifting lugs are diagonally arranged by taking the center of the top of the fermentation box as the center.

As a further improvement of the utility model, the holes are round holes, and the size and the number of the round holes are determined according to the type of the plant waste and the size of the fermentation tank.

Compared with the prior art, the feeding device provided by the utility model can ferment plant wastes, and the generated plant fermentation liquid is used as a carbon source to treat industrial wastewater. The plant fermentation liquid is used as a carbon source in the field of industrial wastewater treatment, and has very high ecological value and practical operation significance especially in the aspects of low C/N ratio industrial wastewater treatment and emergency carbon source addition. The feeding device realizes the reutilization of waste resources, not only saves energy and reduces emission and environmental pressure, but also can produce circular economy, successfully supply low-cost high-efficiency carbon sources, and solves the problem of high cost of wastewater treatment in industrial wastewater factories. The adding device has the advantages of improving the biodegradability of the water body and reducing the wastewater treatment cost.

Drawings

Fig. 1 is a schematic structural diagram of an adding device according to an embodiment of the present utility model.

In the figure:

1: fixing a guide rod; 2: a lifting device; 3: a well cover; 4: lifting lugs; 5: a fermentation tank; 6: a hole; 7: balancing weight; 8: a cover; 9: plant waste.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is described in further detail below with reference to the attached drawing figures:

as shown in fig. 1, the present utility model provides a dosing device. The feeding device comprises a fixed guide rod 1, wherein the fixed guide rod 1 is in an inverted L shape, one end of the fixed guide rod 1 is fixed at a feeding point through an expansion bolt, and the other end of the fixed guide rod 1 is fixed with a lifting device 2. The lifting chain of the lifting device 2 is connected with two lifting lugs 4 at the top of the fermentation tank 5, and the two lifting lugs 4 are diagonally arranged by taking the center of the top of the fermentation tank 5 as the center, so that the balance of the fermentation tank 5 is better kept, and in addition, the number of the fermentation tanks 5 connected with the lifting device 2 can be increased or decreased according to actual needs. The side wall of the fermentation box 5 is provided with holes 6, plant wastes 9 are placed in the fermentation box, the holes 6 are generally round holes, and the size and the number of the round holes are determined according to the type of the plant wastes 9 and the size of the fermentation box 5. The bottom of the fermentation tank 5 is provided with a balancing weight 7, so that the fermentation tank 5 is conveniently submerged in a wastewater tank. The top of fermentation case 5 still sets up the dog-house, and plant waste 9 can be added from the dog-house, still sets up on the dog-house rather than the closing cap 8 that suits, and closing cap 8 can prevent that plant waste 9 from breaking away from fermentation case 5 under the buoyancy of receiving water.

The working principle of the feeding device is as follows:

as shown in fig. 1, the feeding device is assembled according to the above description, the fixed guide rod 1 is fixed beside the wastewater tank, the hanging chain of the lifting device 2 penetrates through the wastewater tank well cover 3 to enter the tank, and the bottom of the hanging chain is connected with the lifting lug 4 at the top of the fermentation tank 5. The water quality and the water quantity in the wastewater tank generally fluctuate, so that the adding quantity of the carbon source needs to be frequently adjusted to ensure the normal operation of the system. When the inflow C/N in the wastewater pool is low or the inflow suddenly drops, the fermentation tank 5 is lowered to the liquid level of the wastewater pool by the lifting device 2 in order to ensure the stability of the sludge concentration and the sludge load of the biochemical system, so that the water enters the fermentation tank 5 through the holes 6, and the plant waste 9 is fermented to generate a large amount of Volatile Fatty Acids (VFAs) under the action of microorganisms in the water, thereby greatly improving the biodegradability of the water. When the water inflow C/N ratio or the water quantity in the wastewater pool is recovered to be normal, the fermentation box 5 is lifted to be above the water surface by the lifting device 2, and the fermentation reaction of the plant waste 9 is stopped, so that the addition of the carbon source is controlled. The lifting device 2 can control the fermentation time and the number of the plant wastes 9 at any time, so that the adding device has strong adjustability and flexibility, and provides operable conditions for replacing and checking the plant wastes 9. In addition, the adding device can be arranged at multiple points beside the wastewater pool according to actual needs, and the more the adding device is arranged, the stronger the adjusting capability of the carbon source is.

Example, ryegrass is used as a carbon source to be added into a wastewater tank

Three month old ryegrass were taken as an example of carbon source. At 20m ³ Is introduced into a PE cell of 18m ³ COD of the wastewater is 200mg/L, BOD is 38mg/L, TN is 50mg/L, B/C ratio is 0.19, C/N ratio is 4:1. the adding device shown in fig. 1 is selected and fixed beside the PE pool, and the wastewater is treated according to the following steps.

Step 1: and (3) collecting 275kg of ryegrass, simply crushing, wrapping a circle by using breathable gauze, binding by using nylon ropes, and loading into a fermentation tank 5.

Step 2: after the fermenting tank 5 is connected with the lifting device 2, the fermenting tank 5 is slowly immersed in the wastewater by using the lifting device 2.

Step 3: after 144h of immersion, water in the PE pool is taken for detection, COD is 2340mg/L, BOD is 1750mg/L, TN is 157mg/L, B/C ratio is 0.75, C/N ratio is 14.9:1.

according to the numerical values, ryegrass is taken as a plant fermentation raw material, and the ryegrass is added by adopting the adding device shown in the figure 1, so that the C/N ratio of wastewater is obviously improved, and the biodegradability is greatly improved.

Conclusion:

the adding device provided by the utility model can ferment plant wastes, and the generated plant fermentation liquid is used as a carbon source to treat industrial wastewater. The plant fermentation liquid is used as a carbon source in the field of industrial wastewater treatment, and has very high ecological value and practical operation significance especially in the aspects of low C/N ratio industrial wastewater treatment and emergency carbon source addition. The feeding device realizes the reutilization of waste resources, not only saves energy and reduces emission and environmental pressure, but also can produce circular economy, successfully supply low-cost high-efficiency carbon sources, and solves the problem of high cost of wastewater treatment in industrial wastewater factories. The adding device has the advantages of improving the biodegradability of the water body and reducing the wastewater treatment cost.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The feeding device comprises a fixed guide rod, and is characterized in that one end of the fixed guide rod is fixed at a feeding point, the other end of the fixed guide rod is fixed with a lifting device, and the bottom of the lifting device is connected with a fermentation tank; wherein, the hole is seted up to the lateral wall of fermentation case, and plant waste is placed to inside, and the bottom sets up the balancing weight, and the top sets up two lugs and feed inlet, set up rather than the closing cap that suits on the feed inlet.

2. The dosing device of claim 1, wherein the fixed guide bar is inverted L-shaped.

3. The feeding device according to claim 1, wherein the two lifting lugs are diagonally arranged centering around the center of the top of the fermenting tank.

4. The feeding device according to claim 1, wherein the holes are circular holes, and the size and the number of the circular holes are determined according to the type of plant waste used and the size of the fermentation tank.