CN219355357U - Improved reverse flushing dirt-sucking sand filter tank - Google Patents

Abstract

The utility model relates to an improved back flushing dirt-pumping sand filter tank, which comprises a tank body, wherein a water inlet and a water outlet are arranged on the tank body, and a filter plate is arranged in the tank body; the device also comprises a flushing ring pipe, a flushing inner spray pipe, a main sewage pumping pipe and an auxiliary sewage pumping pipe; the flushing ring pipe is sleeved on the periphery of the middle part of the tank body, and the flushing ring pipe is connected with the flushing water inlet pipe; one end of the flushing inner spray pipe is connected with the flushing ring pipe, and the other end of the flushing inner spray pipe penetrates through and stretches into the tank body; a top spray head and a side spray head are arranged on the flushing inner spray pipe; the secondary sewage suction pipe is connected with the primary sewage suction pipe, and the bottom end of the secondary sewage suction pipe is provided with a sewage suction hopper; the sewage suction hopper corresponds to the upper and lower positions of the flushing inner spray pipe. The utility model is provided with a plurality of inner spray pipes, water is sprayed in the filter sand from bottom to top, so that the floating of dirt on the upper layer of the filter sand is realized, and meanwhile, the dirt sucking mechanism is arranged to suck the dirt on the upper layer of the filter sand, so that the dirt is prevented from entering the middle layer and the lower layer of the filter sand.

Description

Improved reverse flushing dirt-sucking sand filter tank

Technical Field

The utility model relates to a water treatment device, in particular to an improved back flushing and dirt sucking sand filter tank.

Background

The sand filter tank is used for water treatment and filtering and purifying sewage. The quartz sand filter tank is a common type of sand filter, and the filter material adopts quartz sand as a filler, so that the impurity in water can be removed. It also has the advantages of small filtration resistance, large specific surface area, strong acid and alkali resistance, good pollution resistance, etc.

To the back flush of sand filtration jar, prior art is as the application number: 202221594767.8, publication number: CN217472796U, named: the Chinese patent of the sewage treatment sand filtration tank capable of changing sand rapidly discloses the following technical contents: the sewage treatment sand filter tank capable of quickly changing sand comprises a tank body, wherein the upper end of the tank body is provided with a water inlet pipe, the lower end of the tank body is provided with a water outlet pipe, and the side wall of the tank body is provided with a sand changing port; a rotating shaft vertically penetrates through the tank body, a filter plate which is horizontally arranged is arranged at the lower end of the rotating shaft, filtrate holes are uniformly distributed on the filter plate, and the height of the lower end of the sand changing port is not lower than the arrangement height of the filter plate; a rotating pipe is sleeved on the rotating shaft, a motor is arranged at the upper end of the tank body through a bracket, a first driven face gear is arranged at the upper end of the rotating pipe, a first driving face gear corresponding to the first driven face gear is arranged on a motor shaft of the motor, and the first driving face gear is meshed and matched with the first driven face gear; the upper end of the rotating shaft is sleeved with a second driven end face gear, a motor shaft is provided with a second driving end face gear corresponding to the second driven end face gear, a spring is arranged between the lower end of the second driven end face gear and the rotating shaft, the elasticity of the spring can drive the second driven end face gear to be meshed and matched with the second driving end face gear, and the second driving end face gear and the second driven end face gear are unidirectional gears; and stirring blades are arranged on the rotating pipe.

The back flushing operation of the scheme comprises the following steps: when the filter sand in the tank body needs to be backwashed, the motor is started, and the second driving end face gear and the second driven end face gear are in one-way tooth fit, so that the second driving end face gear and the second driven end face gear are disengaged, the motor only drives the rotary pipe to rotate, the stirring blade stirs the filter sand, the filter sand is stirred, and the reverse flushing is performed.

In the actual operation process, although the method can realize a certain degree of flushing and cleaning, stirring can cause a part of dirt originally on the upper layer of the filter sand to enter the middle layer or even the lower layer of the filter sand, and flushing and cleaning are difficult.

Disclosure of Invention

The purpose of the utility model is that:

the utility model provides an improved generation back flush suction type sand filtration jar sets up a plurality of internal spouts, sprays water from bottom to top in the filter sand, realizes that filter sand upper strata filth floats, sets up simultaneously and draws dirty mechanism, pumps the filth on filter sand upper strata, avoids filth entering filter sand middle level and lower floor.

In order to achieve the above object, the present utility model provides the following technical solutions:

an improved back flushing dirt-pumping sand filter tank comprises a tank body, wherein a water inlet and a water outlet are arranged on the tank body, a valve is arranged on the water outlet, and a filter plate is arranged in the tank body; the device also comprises a flushing ring pipe, a flushing inner spray pipe, a main sewage pumping pipe and an auxiliary sewage pumping pipe; the flushing ring pipe is sleeved on the periphery of the middle part of the tank body, and the flushing ring pipe is connected with the flushing water inlet pipe; one end of the flushing inner spray pipe is connected with the flushing ring pipe, and the other end of the flushing inner spray pipe penetrates through and stretches into the tank body; a top spray head and a side spray head are arranged on the flushing inner spray pipe; the secondary sewage suction pipe is connected with the primary sewage suction pipe, and the bottom end of the secondary sewage suction pipe is provided with a sewage suction hopper; the sewage suction hopper corresponds to the upper and lower positions of the flushing inner spray pipe.

Further, the flushing water inlet pipe is connected with an external water supply pump, and the flushing ring pipe is circular and is coaxially arranged with the tank body.

Further, the flushing inner spray pipe is bent, and one end far away from the flushing ring pipe is vertically upwards; the flushing inner spray pipes are arranged in a circumferential array relative to the central axis of the tank body.

Further, the flushing inner spray pipe is connected with the side wall of the tank body in a sealing way; the top nozzle is positioned at the top end of the flushing inner spray pipe, and the side nozzle is positioned at a position close to the top end of the flushing inner spray pipe.

Further, the main sewage pumping pipe penetrates through the side wall of the middle upper part of the tank body, and the main sewage pumping pipe is connected with an external sewage pumping pump; the auxiliary sewage suction pipe is vertically arranged.

Further, the main sewage suction pipe is connected with the top of the tank body through a connecting rod; the sewage suction hopper is funnel-shaped, and the flaring of the sewage suction hopper is vertically downward.

The beneficial effects of the utility model are as follows:

an improved reverse flushing dirt-pumping sand filter tank is provided with a flushing ring pipe and a plurality of flushing inner spray pipes, water can be sprayed from bottom to top in filter sand, dirt on the upper layer and above the filter sand floats, a dirt-pumping mechanism is arranged, dirt on the upper layer and above the filter sand is pumped by using a dirt-pumping hopper and a dirt-pumping pipe, the bad phenomenon that the dirt enters the middle layer and the lower layer of the filter sand and is difficult to clean out is avoided, and the thoroughness of dirt flushing and cleaning is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of an improved reverse flushing and dirt-sucking sand filter tank according to the present utility model.

Fig. 2 is a partially enlarged schematic view at a in fig. 1.

Fig. 3 is a front view of an improved back flush dirt suction sand filter of the present utility model.

Reference numerals for components in the drawings:

1. a tank body; 2. a water inlet; 3. a water outlet pipe; 4. a valve; 5. a filter plate; 6. flushing the water inlet pipe; 7. flushing the ring pipe; 8. flushing the inner spray pipe; 81. a top nozzle; 82. a side nozzle; 9. a main sewage pumping pipe; 10. an auxiliary sewage suction pipe; 11. a sewage suction hopper; 12. and (5) connecting a rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the detailed description and related preferred, examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, an improved reverse flushing and dirt sucking sand filter tank comprises a tank body 1, wherein a water inlet 2 and a water outlet 3 are arranged on the tank body 1, a valve 4 is arranged on the water outlet 3, the valve 4 is used for controlling the on-off of the water outlet 3, a filter plate 5 is arranged in the tank body 1, filter holes are densely distributed on the filter plate 5, and water can only pass through to prevent quartz sand from passing through; the device also comprises a flushing ring pipe 7, a flushing inner spray pipe 8, a main sewage pumping pipe 9 and an auxiliary sewage pumping pipe 10; the flushing ring pipe 7 is sleeved on the periphery of the middle part of the tank body 1, the flushing ring pipe 7 is connected with a flushing water inlet pipe 6, and the flushing water inlet pipe 6 is used for supplying water to the flushing ring pipe 7; one end of the flushing inner spray pipe 8 is connected with the flushing ring pipe 7, and the other end penetrates through and stretches into the tank body 1, and the flushing inner spray pipe 8 is used for spraying water in quartz sand for back flushing; a top spray head 81 and a side spray head 82 are arranged on the flushing inner spray pipe 8, and the top spray head 81 and the side spray head 82 are water spray heads; the auxiliary sewage suction pipe 10 is connected with the main sewage suction pipe 9, and the bottom end of the auxiliary sewage suction pipe 10 is provided with a sewage suction hopper 11; the sewage suction hopper 11 corresponds to the upper and lower positions of the flushing inner spray pipe 8, and the sewage suction hopper 11 is used for sucking out mixed liquid of water, dirt and quartz sand.

The flushing water inlet pipe 6 is connected with an external water supply pump, the external water supply pump is used for supplying water at high pressure, the flushing ring pipe 7 is circular-ring-shaped and is coaxially arranged with the tank body 1, and the flushing ring pipe 7 is used for supplying water to the flushing inner spray pipe 8.

The inner flushing spray pipe 8 is bent, one end far away from the flushing ring pipe 7 is vertically upwards, water is sprayed upwards, reverse flushing is realized, and quartz sand positioned in the middle layer and the lower layer is prevented from being disturbed; the flushing inner spray pipe 8 is arranged in a circumferential array relative to the central axis of the tank body 1, so that uniform flushing is realized.

The flushing inner spray pipe 8 is connected with the side wall of the tank body 1 in a sealing way and is used for preventing water; the top nozzle 81 is located at the top end of the flushing inner spray pipe 8, the side nozzle 82 is located at a position close to the top end of the flushing inner spray pipe 8, the side nozzle 82 is obliquely arranged, and the spray nozzle faces obliquely upwards.

The main sewage suction pipe 9 penetrates through the side wall of the middle upper part of the tank body 1, and the main sewage suction pipe 9 is connected with an external sewage suction pump which sucks sewage through vacuum suction; the secondary sewage suction pipe 10 is vertically arranged.

The main sewage suction pipe 9 is connected with the top of the tank body 1 through a connecting rod 12; the dirt suction hopper 11 is funnel-shaped, and the flaring of the dirt suction hopper is vertically downward, so that the covering suction of the peripheral area is realized.

The working principle of the utility model is as follows:

opening a water inlet 2 at the top of the tank body 1, pouring quartz sand into the tank body 1, and accumulating the quartz sand on the filter plate 5 until the quartz sand does not overshoot the top nozzle 81 at the top of the inner spray pipe 8, and particularly is positioned between the top nozzle 81 and the sewage suction hopper 11;

introducing sewage into the tank body 1 from the water inlet 2, filtering and purifying the sewage by quartz sand, and flowing out from the water outlet pipe 3 at the bottom of the tank body 1 through small holes on the filter plate 5;

when the sand filter tank is used for a period of time, the dirt accumulated in the tank body 1 needs to be cleaned, and at the moment, the flushing and cleaning operation is started; the method comprises the following steps: closing the valve 4 on the water outlet pipe 3, starting water supply by an external water pump, enabling high-pressure water to enter the flushing ring pipe 7 through the flushing water inlet pipe 6, and finally spraying out from the top spray head 81 and the side spray head 82 through the flushing inner spray pipe 8; because the top spray head 81 and the side spray head 82 are both positioned in the middle layer of the quartz sand, high-pressure water is sprayed upwards and obliquely upwards along the nozzle directions of the top spray head 81 and the side spray head 82, so that disturbance of the upper layer of the quartz sand is realized, and floating of dirt deposited on the top and the upper layer of the quartz sand is realized;

at the moment, the external sewage pump is electrified to operate to generate suction force, and the sewage suction hopper 11 can pump out water, sewage and part of quartz sand on the upper layer which are mixed together at the middle and upper part of the inner side of the tank body 1, so as to realize the cleaning of the sewage and prevent the sewage from further penetrating into the middle and lower layers of the quartz sand;

after the back washing is completed, part of quartz sand is pumped away, so that a specific amount of quartz sand needs to be supplemented according to the actual situation, the top surface of the quartz sand is ensured to be positioned between the top nozzle 81 and the sewage pumping hopper 11, and the filtering and water purifying operation can be continued.

The above examples are provided to further illustrate the utility model and do not limit the utility model to these specific embodiments. Any modification, equivalent replacement, improvement, and extension etc. made within the spirit and principle described in the present utility model should be construed as being within the protection scope of the present utility model.

Claims (6)

1. An improved reverse flushing dirt-pumping sand filter tank comprises a tank body (1), wherein a water inlet (2) and a water outlet pipe (3) are arranged on the tank body (1), a valve (4) is arranged on the water outlet pipe (3), and a filter plate (5) is arranged in the tank body (1); the method is characterized in that: the device also comprises a flushing ring pipe (7), a flushing inner spray pipe (8), a main sewage pumping pipe (9) and an auxiliary sewage pumping pipe (10); the flushing ring pipe (7) is sleeved on the periphery of the middle part of the tank body (1), and the flushing ring pipe (7) is connected with the flushing water inlet pipe (6); one end of the flushing inner spray pipe (8) is connected with the flushing ring pipe (7), and the other end of the flushing inner spray pipe penetrates through and stretches into the tank body (1); a top spray head (81) and a side spray head (82) are arranged on the flushing inner spray pipe (8); the auxiliary sewage suction pipe (10) is connected with the main sewage suction pipe (9), and the bottom end of the auxiliary sewage suction pipe (10) is provided with a sewage suction hopper (11); the sewage suction hopper (11) corresponds to the upper and lower positions of the flushing inner spray pipe (8).

2. An improved reverse flushing and soil-drawing sand filter tank as claimed in claim 1, wherein: the flushing water inlet pipe (6) is connected with an external water supply pump, and the flushing ring pipe (7) is annular and is coaxially arranged with the tank body (1).

3. An improved reverse flushing and soil-drawing sand filter tank as claimed in claim 2, wherein: the inner flushing spray pipe (8) is bent and one end far away from the flushing circular pipe (7) is vertically upwards; the flushing inner spray pipes (8) are arranged in a circumferential array relative to the central axis of the tank body (1).

4. An improved reverse flushing and soil extraction sand filtration tank as claimed in claim 3 wherein: the flushing inner spray pipe (8) is connected with the side wall of the tank body (1) in a sealing way; the top nozzle (81) is positioned at the top end of the flushing inner spray pipe (8), and the side nozzle (82) is positioned at a position close to the top end of the flushing inner spray pipe (8).

5. The improved reverse flushing and soil-drawing sand filter tank as claimed in claim 4, wherein: the main sewage pumping pipe (9) penetrates through the middle and upper side wall of the tank body (1), and the main sewage pumping pipe (9) is connected with an external sewage pumping pump; the auxiliary sewage suction pipe (10) is vertically arranged.

6. The improved reverse flushing and soil-drawing sand filter tank as claimed in claim 5, wherein: the main sewage suction pipe (9) is connected with the top of the tank body (1) through a connecting rod (12); the dirt suction hopper (11) is funnel-shaped, and the flaring of the dirt suction hopper is vertically downward.