CN206214848U - A kind of quartz filter - Google Patents

Abstract

A quartz sand filter, comprising a cylinder body, an upper head above the cylinder, a lower head below the cylinder, a foot arranged at the bottom of the cylinder, a support plate arranged below the interior of the cylinder, and a support plate arranged above the support plate The water cap, and the first filter layer, the second filter layer, and the support layer are filled sequentially above the water cap from top to bottom. The upper part of the cylinder body is provided with a manhole and a sight glass, and the lower part is provided with a discharge port; the center of the upper head is provided with a raw water inlet, and the raw water inlet is connected to an upper water distributor. A water production outlet is provided at the center of the head; a support tube is provided under the support plate, and the support tube is located between the support plate and the lower head to withstand the pressure generated by the filter material on the support plate and to support The load of the plate is strengthened; the water caps are evenly arranged on the support plate, and nuts are pre-welded at the round holes under the support plate to facilitate the rapid installation of the water caps. The utility model has the advantages of simple structure, convenient operation, uniform water distribution, avoiding channel flow phenomenon, long service life of the filter and good water purification effect.

Description

A quartz sand filter

technical field

The utility model relates to a filter device, in particular to a quartz sand filter, which belongs to the technical field of water treatment.

Background technique

Quartz sand filter is a pressure filter device with refined quartz sand as the filter medium. The simple working process of the quartz sand filter is as follows: the raw water enters the filter through the water inlet, and under a certain pressure, when the water flows through the quartz sand filter layer with a certain thickness from top to bottom, the filter medium absorbs and intercepts various substances in the water. All kinds of suspended matter, microorganisms, colloids, and other fine particles are finally achieved to reduce the turbidity of the water and purify the water quality. The filtered water flows out through the water outlet.

Quartz sand filter has the advantages of fast filtration speed, high filtration precision, large sewage interception capacity, strong acid and alkali resistance, oxidation resistance, wide pH application range, and good pollution resistance. It is widely used in municipal, chemical, petroleum, metallurgy, Water treatment and turbidity removal in electric power, electronics, textile, papermaking, environmental protection and other industries, as well as pre-treatment of softened water and pure water, especially can effectively remove tiny particles and bacteria that cannot be removed by sedimentation technology.

The existing quartz sand filter has poor water distribution effect, and it is easy to form a dead angle of water distribution. Moreover, when the influent flow is large, the surface of the filter material is washed unevenly, and channeling is prone to occur, and the filter material is easy to be lost, which greatly reduces the The filtering effect of the filter affects the water quality of the effluent.

Contents of the invention

In view of the defects in the prior art, the purpose of this utility model is to provide a quartz sand filter with simple structure, convenient installation, uniform water inlet and outlet, and avoiding uneven washing and loss of filter material.

The utility model adopts the following technical scheme: a quartz sand filter, including a cylinder body, an upper head above the cylinder, a lower head below the cylinder, a foot arranged at the bottom of the cylinder, and a The support plate, the water cap arranged above the support plate, and the first filter layer, the second filter layer, and the support layer filled sequentially above the water cap from top to bottom; the cylinder is in the form of a cylinder, and the upper half There are manholes and sight mirrors, and the lower part is provided with a discharge port; the center of the upper head is provided with a raw water inlet, the raw water inlet is connected to an upper water distributor, and the center of the lower head is provided with a production Water outlet; a support tube is provided under the support plate, and the support tube is located between the support plate and the lower head, and is used to withstand the pressure generated by the filter material on the support plate and strengthen the load of the support plate.

Further, the upper head is also provided with an exhaust port and lifting lugs, the number of the exhaust ports is 1 or 2, and the number of lifting lugs is 2 or 4.

Further, the upper water distributor is a multi-channel water distributor, and the multi-channel water distributor is formed by connecting a plurality of hollow circular pipes, and a plurality of circular holes are distributed on the wall of the circular pipes.

Further, the first filter layer is quartz sand with a particle size of 3.0-5.0 mm, with a height of 200-250 mm, and the second filter layer is quartz sand with a particle size of 0.4-0.6 mm, with a height of 600-800 mm , the supporting layer is quartz sand with a particle size of 1.2-2.0 mm and a height of 200-400 mm.

Further, the support plate is circular, the water caps are evenly arranged on the support plate, and nuts are pre-welded at the round holes under the support plate, which facilitates the quick installation of the water caps.

Further, the raw water inlet is externally connected with a raw water inlet pipeline, the raw water inlet pipeline is provided with a sampling branch pipe, and the produced water outlet is externally connected with a produced water drainage pipeline, and a sampling branch is provided on the produced water drainage pipeline. branch pipe.

The advantages and beneficial effects of the utility model are: (1) The utility model is simple in structural design, easy to use, low in water purification cost, can effectively remove various suspended solids, microorganisms, colloids and other fine particles in the water, and has a good water purification effect .

(2) This utility model is designed with 2 layers of quartz sand filter layers and 1 layer of quartz sand support layer. The particle size of the first filter layer of quartz sand filter material is relatively large, which can play a coarse filter role and protect the second filter layer at the same time. The first layer of quartz sand filter material is protected from the effect of channeling caused by the inflow of water, and it can also avoid the clogging of the upper water distributor during backwashing; the second filter layer of quartz sand filter material has a small particle size and good retention effect, which plays a role At the same time, the higher filling height of the second filter layer can prevent small particles of impurities from entering the deeper filter sand when it is put into use after backwashing, and then penetrate the filter layer, ensuring the excellent water quality of the effluent; The supporting layer of quartz sand can play a good supporting role to prevent the filter from running out of material, and it can also play a role in homogenizing the water inflow during backwashing, realize secondary water distribution, and protect the second filter layer of quartz sand filter layer from It is directly washed by backwash water, avoiding channeling and prolonging the service life of the filter.

(3) The upper water distributor of the utility model adopts a multi-channel water distributor, the water distribution is uniform, the impact on the filter material layer is small, and channel flow phenomenon is avoided.

(4) In this utility model, nuts are pre-welded at the round holes under the perforated plate, which can facilitate the quick installation of the water cap and greatly shorten the labor time of workers.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1. Cylinder body, 2. Upper head, 3. Exhaust port, 4. Raw water inlet, 5. Lifting lug, 6. Upper water distributor, 7. Manhole, 8. Sight mirror, 9. The first One filter layer, 10, second filter layer, 11, support layer, 12, discharge port, 13, water cap, 14, support plate, 15, support tube, 16, lower head, 17, support foot, 18, Produced water outlet, 19. Produced water drainage pipeline, 20. Sampling branch pipe, 21. Raw water inlet pipeline, 22. Sampling branch pipe.

detailed description

The specific implementation of the present utility model will be further described below in conjunction with the accompanying drawings and examples.

As shown in Figure 1, a quartz sand filter includes a cylinder body 1, an upper head 2 above the cylinder body, a lower head 16 below the cylinder body, a leg 17 arranged at the bottom of the cylinder body, and is arranged inside the cylinder body The support plate 14 below, the water cap 13 arranged above the support plate, and the first filter layer 9, the second filter layer 10, and the supporting layer 11 filled sequentially above the water cap 13 from top to bottom; 1 is a cylinder, the upper part is provided with a manhole 7 and a sight glass 8, and the lower part is provided with a discharge port 12; the center of the upper head 2 is provided with a raw water inlet 4, and the raw water inlet 4 is connected to an upper In the water distributor 6, a water production outlet 18 is provided at the center of the lower head 16; a support pipe 15 is provided below the support plate 14, and the support pipe 15 is located between the support plate 14 and the lower head 16, It is used to withstand the pressure generated by the filter material on the support plate and strengthen the load on the support plate.

The upper head 2 is also provided with an exhaust port 3 and a lifting lug 5, the number of the exhaust port is 1 or 2, and the number of the lifting lug is 2 or 4, which is used in conjunction with a crane , due to the large volume and mass of the equipment, a crane must be used when moving it.

The upper water distributor 6 is a multi-channel water distributor, and the multi-channel water distributor is formed by connecting 8 to 10 hollow circular tubes, and a number of round holes are distributed on the wall of the circular tubes.

The first filter layer 9 is quartz sand with a particle size of 3.0-5.0 mm and a height of 200-250 mm; the second filter layer 10 is quartz sand with a particle size of 0.4-0.6 mm and a height of 600-800 mm. The supporting layer 11 is quartz sand with a particle size of 1.2-2.0 mm and a height of 200-400 mm.

The support plate 14 is circular, and the water caps 13 are evenly arranged on the support plate, and nuts are pre-welded at the circular holes below the support plate 14 to facilitate the quick installation of the water caps 13 .

The raw water inlet 4 is externally connected with a raw water inlet pipeline 21, the raw water inlet pipeline 21 is provided with a sampling branch pipe 22, and the produced water outlet 18 is externally connected with a produced water drainage pipeline 19, and the produced water drainage pipe A sampling branch pipe 20 is provided on the road 19, which can be used for sampling and analyzing the influent and product water quality, so as to judge the operation status of the quartz sand filter and the effect of backwashing.

The working mode of the utility model is: when filtering, the raw water enters the inner cavity of the filter from the raw water inlet pipeline 21, first passes through the upper water distributor 6 for uniform water distribution, and then successively passes through the first filter layer 9 and the second filter layer 10 , the supporting layer 11 passes through, fine particles such as suspended solids, microorganisms, and colloids are intercepted, and the purified water flows from the water cap 13 into the filter cavity below the support plate 14, and is discharged from the produced water outlet 18.

After the filter has been running for a certain period of time, it needs to be backwashed. The backwashing water under pressure is introduced from the produced water drainage pipeline 19, passes through the water cap 13, and goes upward along the supporting layer 11, the second filter layer 10, and the first filter layer 9. Flow, the backwash water agitates and rinses the quartz sand filter material, and the fine particles such as suspended solids, microorganisms, and colloids are separated from the quartz sand, and are collected by the upper water distributor 6 along with the backwash water, and discharged from the raw water inlet 4 .

The above specific embodiments have described the technical solution of the utility model in detail, but can not limit the scope of protection of the utility model. Those of ordinary skill in the art can also make many improvements and modifications on this basis, but these improvements and modifications All are within the protection scope of the claims of the present utility model.

Claims (6)

1. a kind of quartz filter, including cylinder, the low head below upper cover, cylinder above cylinder, is arranged on cylinder The leg of bottom, the supporting plate being arranged on below inner barrel, the water cap being arranged on above supporting plate and above water cap by The first filter layer, the second filter layer, the supporting layer being up to sequentially filled down, it is characterised in that：The cylinder is in cylinder, upper half Part is provided with manhole, visor, and the latter half is provided with discharge port；The upper cover center position is provided with original water inlet, The original water inlet is connected with upper water distributor, and the low head center position is provided with product water out；The supporting plate lower section Support tube is provided with, the support tube is located between supporting plate and low head, for bearing the pressure that filtrate is produced in supporting plate, And the load to supporting plate is strengthened.

2. a kind of quartz filter according to claim 1, it is characterised in that：Exhaust is additionally provided with the upper cover Mouth and hanger.

3. a kind of quartz filter according to claim 1, it is characterised in that：The upper water distributor is multi-path type water distribution Device, the multi-path type water-locator is formed by connecting by many hollow circular-tubes, and some circular holes are distributed with pipe wall.

4. a kind of quartz filter according to claim 1, it is characterised in that：First filter layer is particle diameter 3.0 The quartz sand of~5.0 mm, is highly 200~250 mm, and second filter layer is the quartz sand of the mm of particle diameter 0.4~0.6, high It is 600~800 mm to spend, and the supporting layer is the quartz sand of the mm of particle diameter 1.2~2.0, is highly 200~400 mm.

5. a kind of quartz filter according to claim 1, it is characterised in that：The supporting plate is rounded, the water Cap is uniformly arranged on the supporting plate, and is welded with nut in advance at circular hole below the supporting plate, is easy to the quick peace of water cap Dress.

6. a kind of quartz filter according to claim 1, it is characterised in that：The original water inlet is externally connected to original Water inlet pipeline, the raw water inlet pipeline is provided with sampling branch pipe, and the product water out is externally connected to product water discharge pipe line, The product water discharge pipe line is provided with sampling branch pipe.