CN204395579U - A kind of multistage diatomaceous earth filter - Google Patents

Abstract

The utility model relates to a multi-stage diatomite filter, which is characterized in that: a dome-shaped plate is arranged inside the shell, 4-16 tubular filter units are vertically installed on the dome-shaped plate, and the lower part of the dome-shaped plate is a water collecting There is a water inlet pipe in the middle of the shell, one end of the water inlet pipe is connected to the water inlet, and the other end is an open end set above the tubular filter unit, a baffle is arranged above the open end of the water inlet pipe, and the surface of the tubular filter unit is uniform Spread a layer of diatomaceous earth. When in use, the tubular filter element is installed vertically on the dome-shaped plate, the upper part of the dome-shaped plate is installed with an arched water distribution baffle, the lower part of the dome-shaped plate is a water collection chamber, and the surface of the tubular filter unit is evenly covered with diatoms The soil layer makes it form a porous filter medium with specific properties, thereby intercepting suspended particles, colloids, dissolved organic matter, bacteria, algae and other microorganisms in the water body, to achieve the purpose of purifying algae and effectively purifying low-temperature turbid water.

Description

A multi-stage diatomite filter

technical field

The utility model relates to the technical field of water treatment technology, in particular to a multi-stage diatomite filter.

Background technique

Slightly polluted water bodies are a common problem facing the world today, especially the problem of high organic matter content in water caused by eutrophication pollution and industrial sewage discharge. Algae in the water also affect the effect of water treatment. Some algae can produce algal toxins during the metabolic process, which threatens the health of humans and animals, and even leads to death in severe cases. At the same time, for lake water with low turbidity, conventional clarification and filtration technologies are difficult to meet the requirements of drinking water treatment.

Over the past 30 years, my country has experienced rapid economic development and significant improvement in living standards, but it has also brought serious pollution to the water environment. In particular, the rapid development of the chemical industry has made the nature of water pollutants extremely complex, posing a great challenge to conventional water purification processes. In addition, since my country began to implement the new "Drinking Water Sanitation Standard" (GB5749-2006) on July 1, 2007, the specified indicators have increased from 35 items in the original standard to 106 items. Moreover, the current level of economic development in my country determines that the water quality of water sources cannot be fundamentally improved in a short period of time. Therefore, the contradiction between the improvement of water quality standards and the deterioration of water source water quality will become more prominent in a certain period of time. There is an urgent need to develop effective drinking water purification equipment and processes to ensure the quality of water supply. However, the existing water treatment equipment has insufficient ability to purify algae and low-temperature and low-turbidity water, and cannot effectively intercept suspended particles, colloids, dissolved organic matter, bacteria, algae and other microorganisms in the water body, and cannot meet the needs of drinking water.

Contents of the invention

The purpose of this utility model is to provide an improved multi-stage diatomite filter, which can overcome some shortcomings in the prior art that conventional water treatment filters cannot effectively remove organic matter and microorganisms.

In order to achieve the above purpose, the technical solution of the utility model is: a multi-stage diatomite filter, which mainly includes a shell, the shell is provided with a water inlet and a water outlet, and the feature is that: a dome plate is arranged inside the shell , there are 4-16 tubular filter units vertically installed on the dome plate, the lower part of the dome plate is the water collection chamber, and a water inlet pipe is arranged in the middle of the shell, one end of the water inlet pipe is connected with the water inlet, and the other end is set at the open end Above the tubular filter unit, a baffle is arranged above the open end of the water inlet pipe, and the surface of the tubular filter unit is evenly spread with a diatomite layer. the

When in use, the tubular filter element is installed vertically on the dome-shaped plate, the upper part of the dome-shaped plate is installed with an arched water distribution baffle, the lower part of the dome-shaped plate is a water collection chamber, and the surface of the tubular filter unit is evenly covered with diatoms The soil layer makes it form a porous filter medium with specific properties, thereby intercepting suspended particles, colloids, dissolved organic matter, bacteria, algae and other microorganisms in the water body, to achieve the purpose of purifying algae and effectively purifying low-temperature turbid water.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Detailed ways

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

The symbols in the attached drawings are as follows: 1 shell, 2 dome-shaped plate, 3 porous plate, 4 tubular filter unit, 5 arched water distribution baffle, 6 water collection chamber, 7 water outlet, 8 water inlet pipe, 9 inlet Water outlet, 10 water inlet pipes, 11 water outlet pipes, 12 exhaust ports, 13 baffle plates, 14 water collecting pipes.

A multi-stage diatomite filter described in the utility model mainly includes a shell, which is provided with a water inlet and a water outlet. There are 4-16 tubular filter units vertically installed on the shaped plate. The lower part of the domed plate is a water collection chamber. There is a water inlet pipe in the middle of the shell. On the top of the filter unit, a baffle is arranged above the opening end of the water inlet pipe, and the surface of the filter unit is evenly spread with a layer of diatomaceous earth. the

There is an arched water distribution baffle above the dome plate. The tubular filter units are divided into two groups, which are symmetrically arranged on both sides of the water inlet pipe. The thickness of the diatomite layer is 2-4mm. The distance between them is 50-80mm. The top of the casing is provided with an exhaust port, and the side wall of the casing is provided with an air intake pipe which is connected with the water collection chamber. The lower part of the water inlet pipe is provided with a water distribution opening, and the water distribution opening is arranged below the arched water distribution baffle. There is a height difference between the open end of the water inlet pipe and the top of the tubular filter unit, and the height difference is 2-6cm. the

When in use, the water inlet and the water outlet are arranged at the bottom of the housing, and a water inlet pipe is provided inside the housing, and the water inlet pipe is connected to the water inlet. The top of the water inlet pipe is provided with a top opening, and the top opening is located above the tubular filter element, and above the top opening There is a baffle, which can evenly disperse the raw water sucked in by the water inlet pipe to the left and right. After being filtered by each tubular filter unit, the raw water enters the water collection chamber from the water outlet of the tubular filter unit, and then is discharged through the water outlet. The surrounding of the dome-shaped plate fits completely with the inner wall of the shell. The function of the dome-shaped plate is to separate the water inlet and outlet, and to fix the water collection pipe. Between the dome-shaped plate and the dome-shaped plate, the function of the water distribution opening is to make the upper and lower water distribution uniform, so as to prevent the inconsistency of the water distribution between the upper and lower filter elements. The function of the arched water distribution baffle is to make the lower water distribution uniform.

The surface of the tubular filter unit is evenly covered with a diatomite layer, which is formed by laying powdered diatomite evenly on the surface of the filter element. The diatomite layer is a porous filter medium with specific properties. The interception of suspended particles, colloids, dissolved organic matter and bacteria, algae and other microorganisms in the water body can effectively overcome the shortcomings of the existing conventional water treatment process for algae purification and low-temperature and low-turbidity water purification.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. The utility model does not depart from the spirit and scope of the utility model There will also be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A multi-stage diatomite filter, which mainly includes a housing, the housing is provided with a water inlet and a water outlet, and is characterized in that: a dome plate is provided in the housing, and 4-16 The root tube filter unit, the lower part of the dome plate is the water collection chamber, and there is a water inlet pipe in the middle of the shell. One end of the water inlet pipe is connected to the water inlet, and the other end is an open end. There is a baffle above the end, and the surface of the tubular filter unit is evenly covered with a diatomite layer. 2. A multi-stage diatomite filter according to claim 1, characterized in that: an arched water distribution baffle is arranged above the dome plate, and the tubular filter units are divided into two groups, symmetrically arranged on the water inlet pipe On both sides of the filter, the thickness of the diatomite layer is 2-4mm, and the distance between adjacent tubular filter units is 50-80mm. 3. A multi-stage diatomite filter according to claim 1, characterized in that: the top of the housing is provided with an exhaust port, the side wall of the housing is equipped with an air intake pipe, and the air intake pipe is connected to the water collection chamber . 4. A multi-stage diatomite filter according to claim 1, characterized in that: the lower part of the water inlet pipe is provided with a water distribution opening, and the water distribution opening is arranged below the arched water distribution baffle. 5. A multi-stage diatomite filter according to claim 1, characterized in that there is a height difference between the open end of the water inlet pipe and the top of the tubular filter unit, and the height difference is 2-6 cm.