CN212731314U

CN212731314U - A grit chamber sand removal device for domestic sewage handles

Info

Publication number: CN212731314U
Application number: CN202021025854.2U
Authority: CN
Inventors: 张献
Original assignee: Chengdu Huaxing De'an Water Treatment Technology Service Co ltd
Current assignee: Chengdu Huaxing De'an Water Treatment Technology Service Co ltd
Priority date: 2020-06-07
Filing date: 2020-06-07
Publication date: 2021-03-19
Anticipated expiration: 2030-06-07

Abstract

The utility model discloses a grit chamber sand removal device for domestic sewage treatment, including the grit chamber, table wall one side is connected with the support frame in the grit chamber, be provided with the rose box on the support frame, the motor is installed at the top of rose box, rotate through the bearing between rose box inside up end and the lower terminal surface and install the threaded rod, the extension end at threaded rod top runs through behind the rose box and is connected with the output shaft transmission of motor, the threaded rod outside closes soon through the screw thread and is connected with the thread bush, the thread bush outside respectively with the rose box both sides between the interior table wall rotate through the pivot be connected with the filter screen subassembly. The utility model discloses in, drive the threaded rod just reversing through the just reversing of motor, according to the screw thread transmission principle, drive the thread bush up-and-down motion repeatedly to drive the filter screen subassembly and relapse the swing from top to bottom in the rose box, prevent that the sewage debris on the filter screen subassembly from piling up, block up the mesh, improve the filter effect.

Description

A grit chamber sand removal device for domestic sewage handles

Technical Field

The utility model relates to a sewage treatment technical field especially relates to a grit chamber sand removal device for domestic sewage treatment.

Background

Sewage treatment (sewage treatment, water treatment): in order to achieve the process of purifying sewage which is discharged into a certain water body or reused, the sewage treatment is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and the sewage treatment also increasingly enters the daily life of common people.

At present, in sewage treatment's desanding process, what mostly adopted is whirl desanding, and its theory of operation is: under the action of certain pressure, sewage flow enters the equipment from the inlet of the sand remover in a tangential direction to generate strong rotational flow motion, and due to different sand water densities, under the action of centrifugal force, centripetal buoyancy and fluid drag force, the clean water with low density rises due to different stress, and is discharged from the overflow port, and the sand with high density is discharged from the sand discharge port at the bottom, so that the aim of removing the sand is fulfilled.

Prior publication No. CN208577518U (a sewage desanding apparatus) is described in the patent document. "through setting up the prefiltration groove under the inlet tube, set up out the water regulating plate in delivery port department, not only can go into preliminary filtration before carrying out the desander degritting treatment, in order to avoid blockking up the sand extractor, clear water discharge amount after can also controlling the desanding, do benefit to the stability of desanding and go on, guarantee the degritting effect, however, the prefiltration groove that is used for handling debris in the sewage before the sewage degritting that sets up among this patent technical scheme, only carry out filtration treatment through the debris of prefiltration net in to the sewage, debris are piled up on the prefiltration net easily, cause the mesh to block up, lead to the filter effect poor, therefore, lack a sewage sand removing device good to sewage debris filter effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems, the sand removing device for the grit chamber for domestic sewage treatment is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sand basin sand removal device for domestic sewage treatment, includes the grit chamber, table wall one side is connected with the support frame in the grit chamber, be provided with the rose box on the support frame, the motor is installed at the top of rose box, install the threaded rod through the bearing rotation between the inside up end of rose box and the lower terminal surface, the extension end at threaded rod top runs through behind the rose box and is connected with the output shaft transmission of motor, the threaded rod outside closes soon through the screw thread and is connected with the thread bush, the thread bush outside respectively with the rose box both sides between the interior table wall through the pivot rotation be connected with the filter screen subassembly.

As a further description of the above technical solution:

the filter screen subassembly comprises first filter screen and second filter screen, inside the second filter screen plug-in goes into first filter screen, and can slide in its inside.

As a further description of the above technical solution:

the outside of filter screen subassembly and the interior surface wall contact of rose box, and both sides filter screen subassembly is wrapped up in the outside of thread bush.

As a further description of the above technical solution:

install forward start button and reverse start button on the inside up end of rose box and the lower terminal surface respectively, forward start button and reverse start button are located the thread bush directly over respectively and directly under.

As a further description of the above technical solution:

the motor is electrically connected with the forward starting button and the reverse starting button through a waterproof wire.

As a further description of the above technical solution:

one side intercommunication of rose box has the inlet tube, and the free end of inlet tube extends the one side that runs through the grit chamber, the inlet tube is located filter screen subassembly top, the bottom intercommunication of rose box has the outlet pipe, and the outlet pipe runs through the inside that the support frame extended to the grit chamber.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, drive the threaded rod just reversing through the just reversing of motor, according to the screw thread transmission principle, drive the thread bush up-and-down motion repeatedly to drive the filter screen subassembly and relapse the swing from top to bottom in the rose box, prevent that the sewage debris on the filter screen subassembly from piling up, block up the mesh, improve the filter effect.

2. The utility model discloses in, through setting the filter screen subassembly to nested and sliding connection's first filter screen and second filter screen each other to when preventing that the filter screen subassembly from following the thread bush up-and-down motion, the damage of filter screen subassembly, thereby improve the life of filter screen subassembly, reduce use cost.

Drawings

Fig. 1 is a schematic view illustrating an internal structure of a grit chamber according to an embodiment of the present invention;

fig. 2 shows a schematic view of an internal structure of a filter box provided according to an embodiment of the present invention;

fig. 3 shows a schematic connection diagram of a first screen and a second screen provided according to an embodiment of the present invention;

fig. 4 shows a schematic cross-sectional view at a-a provided in accordance with an embodiment of the present invention.

Illustration of the drawings:

1. a grit chamber; 2. a support frame; 3. a filter box; 301. a water inlet pipe; 302. a water outlet pipe; 4. a motor; 5. a threaded rod; 6. a threaded sleeve; 7. a forward start button; 8. a reverse start button; 9. a screen assembly; 901. a first filter screen; 902. and a second filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The forward starting button 7 and the reverse starting button 8 adopt automatic reset switches, and can adopt an automatic reset switch with the model of LAK16J-M1, namely, when the automatic reset switch is pressed, the automatic reset switch is in a power-on state, and when the pressure disappears, the automatic reset switch is automatically switched off and is in a power-off state.

Referring to fig. 1-4, the present invention provides a technical solution: a grit chamber desanding device for domestic sewage treatment comprises a grit chamber 1, one side of the inner surface wall of the grit chamber 1 is connected with a support frame 2, a filter box 3 is arranged on the support frame 2, the whole filter box 3 can be taken out of the support frame 2, the filter box 3 is convenient to overhaul and replace, a motor 4 is arranged at the top of the filter box 3, an end cover is arranged at the top of the filter box 3, the motor 4 is arranged on the end cover, the end cover can be disassembled, so that filter residues on a filter screen assembly 9 can be conveniently cleaned, the filter residues are prevented from blocking meshes, the filtering effect and the filtering efficiency are improved, the motor 4 is powered by an external power supply, the start and stop of the external power supply are controlled by an external power switch, the motor 4 adopts the existing common driving motor capable of realizing forward and reverse rotation, a threaded rod 5 is rotatably arranged between the upper end surface and the lower end surface inside the filter box 3 through a bearing, and an extension end, threaded rod 5 outside closes soon through the screw thread and is connected with thread bush 6, thread bush 6 outside respectively with the rose box 3 both sides between the interior table wall rotate through the pivot be connected with filter screen subassembly 9, under the pivot effect, filter screen subassembly 9 can round pivot tilting, threaded rod 5 rotates along with motor 4's output shaft is synchronous, according to the screw thread transmission principle, thread bush 6 is at vertical direction motion, it swings filter screen subassembly 9 at vertical direction luffing motion to beat, prevent that the filter residue on the filter screen subassembly 9 from piling up together, improve the filter effect to sewage, prevent that debris in the sewage from blockking up the sand lifter, guarantee the normal work of sand lifter, thereby guarantee the normal clear of sewage degritting work.

Specifically, as shown in fig. 2 and fig. 3, the filter screen assembly 9 is composed of a first filter screen 901 and a second filter screen 902, the second filter screen 902 is inserted into the first filter screen 901 and can slide in the first filter screen 902, the second filter screen 902 moves synchronously along with the threaded sleeve 6 and slides in the first filter screen 901, so that the filter screen assembly 9 is not affected by the movement of the threaded sleeve 6, and the normal operation of the filter operation is ensured.

Specifically, as shown in fig. 2 and 4, the outer side of the screen assembly 9 is in contact with the inner surface wall of the filter box 3, and the screen assemblies 9 on the two sides are wrapped on the outer side of the threaded sleeve 6, so that sewage is prevented from flowing out through a gap between the screen assembly 9 and the inner surface wall of the filter box 3 without being filtered, and the filtering effect is improved.

Specifically, as shown in fig. 2, install forward start button 7 and reverse start button 8 on the inside up end of rose box 3 and the lower terminal surface respectively, motor 4 and forward start button 7, and through waterproof wire electric connection between the reverse start button 8, through waterproof wire electric connection between forward start button 7 and the reverse start button 8 and the external power supply, through forward start button 7 control motor 4 forward rotation, through reverse start button 8 control motor 4 reverse rotation, forward start button 7 and reverse start button 8 are located the thread bush 6 directly over and directly under respectively, move the inside up end of rose box 3 or the lower terminal surface through thread bush 6, extrude forward start button 7 or reverse start button 8, thereby realize the switch of forward start button 7 or reverse start button 8.

Specifically, as shown in fig. 1 and 2, one side intercommunication of rose box 3 has inlet tube 301, and the free end of inlet tube 301 extends the one side that runs through grit chamber 1, inlet tube 301 is located filter screen subassembly 9 top, the bottom intercommunication of rose box 3 has outlet pipe 302, and outlet pipe 302 runs through the inside that support frame 2 extends to grit chamber 1, sewage passes through inlet tube 301 and gets into inside rose box 3, after filter screen subassembly 9 filters, debris in the sewage are stayed on filter screen subassembly 9, and filtered sewage flows into grit chamber 1 inside through outlet pipe 302, carry out next degritting work, wherein, inlet tube 301 and outlet pipe 302 adopt soft return bend, avoid its getting of influence rose box 3 to put.

The working principle is as follows: when the filter box is used, firstly, sewage enters the filter box 3 through the water inlet pipe 301, secondly, the motor 4 is started through the external power switch, the motor 4 drives the threaded rod 5 to rotate forwards, the threaded sleeve 6 moves downwards according to the thread transmission principle to drive the filter screen assembly 9 to rotate upwards relative to the threaded sleeve 6, meanwhile, the second filter screen 902 slides outwards in the first filter screen 901, when the threaded sleeve 6 moves to extrude the reverse start button 8, the motor 4 starts to rotate backwards, the threaded rod 5 starts to rotate backwards, the threaded sleeve 6 is driven to move upwards according to the thread transmission principle, the filter screen assembly 9 rotates downwards relative to the threaded sleeve 6, meanwhile, the second filter screen 902 slides inwards in the first filter screen 901 until the threaded sleeve 6 moves to extrude the forward start button 7, the motor 4 starts to rotate forwards again, wherein the filter screen assembly 9 can filter impurities in the sewage, and the filter screen assembly 9 swings upwards and downwards repeatedly, avoid debris to pile up, influence sewage filter effect, improve filtration efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a grit chamber sand removal device for domestic sewage treatment, includes grit chamber (1), its characterized in that, table wall one side is connected with support frame (2) in grit chamber (1), be provided with rose box (3) on support frame (2), motor (4) are installed at the top of rose box (3), rotate through the bearing between rose box (3) inside up end and the lower terminal surface and install threaded rod (5), the extension end at threaded rod (5) top runs through the output shaft transmission of rose box (3) back and motor (4) and is connected, threaded rod (5) outside closes soon through the screw thread and is connected with thread bush (6), the thread bush (6) outside rotate through the pivot between the interior table wall with rose box (3) both sides respectively and be connected with filter screen subassembly (9).

2. The grit chamber desanding device for domestic sewage treatment according to claim 1, wherein said screen assembly (9) is composed of a first screen (901) and a second screen (902), said second screen (902) being inserted inside said first screen (901) and being slidable inside it.

3. The grit chamber desanding device for domestic sewage treatment according to claim 1, wherein the outside of the screen assembly (9) is in contact with the inner surface wall of the filtering box (3), and the screen assemblies (9) on both sides are wrapped on the outside of the threaded sleeve (6).

4. The grit chamber desanding device for domestic sewage treatment according to claim 1, wherein a forward start button (7) and a reverse start button (8) are respectively mounted on the upper end face and the lower end face of the inside of the filter box (3), and the forward start button (7) and the reverse start button (8) are respectively located right above and right below the threaded sleeve (6).

5. The grit chamber desanding device for domestic sewage treatment according to claim 1, wherein the motor (4) and the forward start button (7) and the reverse start button (8) are electrically connected through waterproof wires.

6. The grit chamber desanding device for domestic sewage treatment according to claim 1, wherein one side of the filter box (3) is communicated with a water inlet pipe (301), the free end of the water inlet pipe (301) extends through one side of the grit chamber (1), the water inlet pipe (301) is positioned above the filter screen assembly (9), the bottom of the filter box (3) is communicated with a water outlet pipe (302), and the water outlet pipe (302) extends to the inside of the grit chamber (1) through the support frame (2).