CN210057494U

CN210057494U - Sand lifting device of continuous sand filter

Info

Publication number: CN210057494U
Application number: CN201920342683.7U
Authority: CN
Inventors: 何忠凯; 李文科
Original assignee: Guangdong Zhonghuan Kechuang Environmental Protection Technology Co Ltd
Current assignee: Guangdong Zhonghuan Kechuang Environmental Protection Technology Co Ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-02-14
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a sand filtering structure, in particular to a sand lifting device for a continuous sand filter, which comprises a sand lifting pump, a sand lifting straight pipe and a sand washer, wherein the sand lifting pump is connected with the lower end of the sand lifting straight pipe and is inserted into a filter material, the upper end of the sand lifting straight pipe is arranged in the sand washer, the sand lifting device also comprises a sand guiding frustum, the sand guiding frustum is connected with the upper port of the sand lifting straight pipe through internal and external threads, the upper port is higher than the liquid level of the filter liquid, the sand washer is divided into a shell, a sand guiding funnel, a sand guiding slideway and a sewage outlet, the shell is a cylinder with the lower end open, one end of the sand guiding funnel is connected with the inner wall of the shell, the other end extends towards the sand lifting straight pipe, the spiral sand guiding slideway is arranged below the sand guiding funnel and is arranged between the sand lifting straight pipe and the inner wall of the shell, the sewage outlet is arranged on the shell, the utility model effectively reduces the, the cleaning effect of the filter material is improved, and the filtering and pollution discharge capacity of the continuous sand filter is enhanced.

Description

Sand lifting device of continuous sand filter

Technical Field

The utility model relates to a sand filtering structure, concretely relates to carry sand device for continuous sand filter for in succession the suspended solid sanitization that attaches to the filter material surface.

Background

As China has a large population and seriously lacks water resources, the national standards are improved in the fields of industrial sewage treatment and municipal sewage treatment, and the continuous sand filter plays an important role in sewage treatment.

Continuous sand filter filters the aquatic suspended solid through the filter material to reach promotion quality of water emission standard, a lot of suspended solids of bottom filter material surface adsorption, above-mentioned filter material is clean filter material, water above the same is the clear water also, must wash the suspended solid on bottom filter material surface, the filter material just can continue to use, with carrying the sand device below the filter material is carried up and the sanitization, put back the filter material quartz above piling again, make the filter material can carry out effectual filtration always.

The utility model discloses a continuous sand washing device for cleaning suspended solids on the surface of a filter material, which comprises a sand extracting pump and a cylinder body, wherein the bottom of the cylinder body is provided with a sewage outlet, a cylinder pipe which is coaxially arranged is arranged in the cylinder body, the lower end of the cylinder pipe extends out of the cylinder body, the side wall of the cylinder pipe is provided with an overflow port, the sand extracting pump is inserted at the lower end of the cylinder pipe, an inner corrugated pipe and an outer corrugated pipe which are coaxially arranged are sequentially arranged between the sand extracting pump and the cylinder pipe from inside to outside, the lower end inlet of the sand extracting pump is inserted in a filter material pile to be cleaned, the upper end outlet of the sand extracting pump is provided with a sand guide frustum, the upper end of the inner corrugated pipe is arranged at the lower side of the sand guide frustum, the upper end of the outer corrugated pipe is arranged close to the inner wall of the cylinder pipe, the utility model can automatically clean the filter material by using a small amount of filtrate, but the occupied volume, the filter material is shorter with filtrating convection time, and the cleaning performance is not good, and when the filter material was adhered together by the suspended solid, the easy card was in washing husky ware, can't carry out effectual washing.

SUMMERY OF THE UTILITY MODEL

(1) Technical problem to be solved

An object of the utility model is to overcome prior art's is not enough, adapts to reality needs, provides a carry sand device for continuous sand filter for it is great to solve the sand washer occupation volume, washs insufficient problem.

(2) Technical scheme

The utility model discloses the technical scheme who adopts does: the utility model provides a sand device of carrying of continuous sand filter, includes and carries the sand pump, carries sand straight tube and sand washer, carry the sand pump connection and carry sand straight tube lower extreme and insert in the filter material, carry sand straight tube upper end setting in sand washer, still including leading the sand frustum, lead the sand frustum and carry the last port of sand straight tube and pass through interior external screw thread connection, and this last port is higher than the filtrating liquid level, sand washer divide into the shell, lead sand funnel, lead sand slide and outlet of sewer, the shell is lower extreme open-ended cylinder, lead sand funnel one end and shell inner wall connection, the other end extends to carrying the sand straight tube, it is equipped with the heliciform and leads sand slide to lead sand funnel below, should lead sand slide circle to set up and carry between sand straight tube and the shell inner wall, the outlet of sewer sets up on the shell.

Preferably: the sand filter is provided with a sewage chamber, the sewage chamber is arranged at the sewage outlet, the sewage outlet is provided with a valve, and the bottom end of the sewage chamber is provided with a second sewage outlet.

Preferably: the valve comprises a hand wheel, a lifting rod, a nut and a water stop plug, wherein one end of the lifting rod is connected with the water stop plug and the other end of the lifting rod is connected with the hand wheel, the water stop plug is conical, the bottom end of the water stop plug can be completely sealed with a sewage outlet, a threaded part is arranged on the lifting rod, two ends of the threaded part are provided with limiting protrusions, the nut is arranged on the threaded part of the lifting rod, and a through hole for the lifting rod to pass through is formed in the sewage chamber.

Preferably: the shell is provided with a plurality of mounting racks.

Preferably: the mounting bracket comprises mounting legs and a fixing piece, the mounting bracket is of a telescopic stick structure, one side of the fixing piece is provided with a socket for inserting the mounting legs, and the other side of the fixing piece is provided with a fusible material for fusion welding.

(3) Has the advantages that:

the utility model discloses a carry sand device for rinsing continuous sand filter of filter material surface suspended solid has following advantage:

1. the viscous suspension can be cleaned: the sand lifting straight pipe upper port and the sand guide funnel are arranged at the position higher than the liquid level of filtrate, so that the filter material freely falls off and is smashed on the sand guide funnel after leaving the upper port, the adhered suspended matters are separated from the filter material, and the cleaning effect of the sand washer is ensured.

2. The volume of the sand washer is reduced, and the cleaning effect is improved: this scheme adopts and encircles the sand slide of leading of carrying the sand straight tube and washs the filter material, has not only reduced the volume of washing husky ware, has lengthened the convection current space of filter material and filtrating moreover, makes the filter material more abundant by the washing.

3. This scheme is in with the sewage export setting lead the sand funnel with lead on the shell between the sand slide, not only ensure that the sewage that washs the filter material can get rid of by the number of utmost, but also can not let the filter material get into the sewage export.

4. This scheme has set up the sewage room outside washing husky ware, has set up the valve in sewage exit, makes the husky speed of washing husky ware can control, can carry out corresponding adjustment to the sewage that filters the different degree to avoid extravagant unnecessary water.

5. The scheme increases the straight pipe diameter of sand extraction, reduces the size of a pump head, improves the sand extraction speed after the change, effectively improves the sand extraction efficiency, shortens the cleaning period of the filter material, improves the cleaning effect of the filter material, and enhances the filtering and sewage discharge capacity.

6. This scheme has set up the mounting bracket on the shell, has made things convenient for demolising of carrying the sand device to convenient washing and maintenance.

Drawings

FIG. 1 is a schematic plane view of example 1;

FIG. 2 is a schematic view of the inside of a sand-extracting apparatus according to example 1;

FIG. 3 is a schematic plane view of example 2;

FIG. 4 is a top view of embodiment 2;

FIG. 5 is an enlarged view of the valve and the sewage chamber in example 2;

fig. 6 is an enlarged view of the joint of the mounting leg and the fixing plate of embodiment 2.

Detailed Description

The invention will be further described with reference to the following figures 1-6 and examples:

example 1

A sand extracting device for a continuous sand filter comprises a sand extracting pump 1, a sand extracting straight pipe 2 and a sand washer 3, wherein the lower end of the sand extracting straight pipe 2 is inserted into a filter material, the upper end of the sand extracting straight pipe is arranged in the sand washer 3 and is connected with the sand extracting pump 1, the diameter of the sand extracting straight pipe 2 is DN40-DN50, the size of a pump head of the sand extracting pump 1 is 150ML, a sand guiding frustum 2-1 is arranged at the upper port of the sand extracting straight pipe 2, the port is higher than the liquid level of filtrate, the sand washer is divided into a shell 3-1, a sand guiding funnel 3-2, a sand guiding slideway 3-3 and a sewage outlet 3-4, the shell 3-1 is a cylinder with an opening at the lower end, the sand guiding funnel 3-2 extends towards the sand extracting straight pipe 2 from the inner wall of the shell 3-1 which is higher than the liquid level of the filtrate, the sand guiding funnel 3-2 is provided with a, the sand guide slideway 3-3 is arranged between the sand lifting straight pipe 2 and the inner wall of the shell 3-1, extends downwards to the outside of the shell 3-1 around the sand lifting straight pipe 2, and the sewage outlet 3-4 is arranged on the shell 3-1 between the sand guide funnel 3-2 and the sand guide slideway 3-3.

In the working process of the continuous sand filter, a sand extracting pump 1 lifts a filter material attached with suspended matters into a sand washer 3 through a sand extracting pipe 2, the filter material attached with the suspended matters falls freely under the guidance of a sand guiding frustum 2-1 and is hit on a sand guiding funnel 3-2, so that the suspended matters and the filter material are primarily separated, then the suspended matters and the filter material enter a sand guiding slideway 3-3 under the guidance of the sand guiding funnel 3-2, the suspended matters and the filter material sliding downwards along the sand guiding slideway 3-3 form convection with upward water flow, the suspended matters are discharged along with the water flow to an upper sewage outlet 3-4, and the filter material sliding downwards along the sand guiding slideway slides out of the sand washer.

Example 2

The difference between the embodiment and the embodiment 1 is that a sewage chamber 4 is arranged on a sand filter, the sewage chamber 4 is arranged at a sewage outlet 3-4, a valve 5 is arranged on the sewage outlet 3-4, the valve 5 comprises a hand wheel 5-1, a lifting rod 5-2, a nut 5-3 and a water stop plug 5-4, one end of the lifting rod 5-2 is connected with the water stop plug 5-4, one end of the water stop plug 5-4 is connected with the hand wheel 5-1, the water stop plug 5-4 is conical, the bottom end of the water stop plug can completely seal the sewage outlet 3-4, a threaded part is arranged on the lifting rod 5-2, two ends of the threaded part are provided with limiting protrusions, the nut 5-3 is arranged on the threaded part of the lifting rod, and a through hole 4-1 for. 4 bottoms of sewage room are equipped with second sewage export 4-2, be equipped with 4 mounting brackets on the shell, the mounting bracket includes installation leg 6 and stationary blade 7, and installation leg 6 is flexible rod structure, 7 one sides of stationary blade are equipped with and supply installation leg 6 male socket, and the another side is equipped with the fusible thing that is used for fusion welding.

The nut 5-3 is fixed on the shell of the sand filter, an operator can adjust the position of the lifting rod 5-2 by rotating the hand wheel 5-1 to adjust the size of the sewage outlet 3-4, so as to adjust the sand washing speed, and sewage flowing out of the sewage outlet 3-4 enters the sewage chamber 4 and then flows out of the sand filter from the second sewage outlet 4-2.

The fixing pieces 7 are welded on the sand filter shell, the sand lifting device is placed at a proper position, the mounting legs 6 are drawn out and inserted into the inserting openings of the fixing pieces 7, and the sand lifting device can be taken out by withdrawing the mounting legs 6 when cleaning and maintenance are needed.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims

1. The utility model provides a continuous sand filter's sand device of carrying, includes and carries the sand pump, carries sand straight tube and sand washer, carry the sand pump and connect and carry sand straight tube lower extreme and insert in the filter material, carry sand straight tube upper end setting in sand washer, its characterized in that: still including leading the sand frustum, lead the sand frustum and pass through interior external screw thread connection with the last port of carrying the sand straight tube, and this last port is higher than the filtrating liquid level, wash husky ware and divide into the shell, lead sand funnel, lead sand slide and outlet of sewer, the shell is lower extreme open-ended cylinder, lead sand funnel one end and shell inner wall connection, the other end extends to carrying the sand straight tube, it is equipped with the heliciform and leads sand slide to lead sand funnel below, should lead sand slide to spiral and set up carrying between sand straight tube and shell inner wall, the outlet of sewer sets up on the shell.

2. The sand extracting apparatus of a continuous sand filter as recited in claim 1, wherein: the sand filter is provided with a sewage chamber, the sewage chamber is arranged at the sewage outlet, the sewage outlet is provided with a valve, and the bottom end of the sewage chamber is provided with a second sewage outlet.

3. The sand extracting apparatus of a continuous sand filter as recited in claim 2, wherein: the valve comprises a hand wheel, a lifting rod, a nut and a water stop plug, wherein one end of the lifting rod is connected with the water stop plug and the other end of the lifting rod is connected with the hand wheel, the water stop plug is conical, the bottom end of the water stop plug can be completely sealed with a sewage outlet, a threaded part is arranged on the lifting rod, two ends of the threaded part are provided with limiting protrusions, the nut is arranged on the threaded part of the lifting rod, and a through hole for the lifting rod to pass through is formed in the sewage chamber.

4. The sand extracting apparatus of a continuous sand filter as recited in claim 1, wherein: the shell is provided with a plurality of mounting racks.

5. The sand extracting apparatus of a continuous sand filter as recited in claim 4, wherein: the mounting bracket comprises mounting legs and a fixing piece, the mounting bracket is of a telescopic stick structure, one side of the fixing piece is provided with a socket for inserting the mounting legs, and the other side of the fixing piece is provided with a fusible material for fusion welding.