CN213803209U

CN213803209U - Pretreatment device for wastewater treatment

Info

Publication number: CN213803209U
Application number: CN202022948003.1U
Authority: CN
Inventors: 丁晓娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-07-27
Anticipated expiration: 2030-12-11

Abstract

The utility model discloses a preprocessing device for waste water treatment, including the box, two baffles that the size is the same are welded to the box inner wall, and the baffle divide into filter chamber, air supporting cavity, purification chamber with the box is inside in proper order, and the box is close to filter chamber one side outer wall and is provided with the inlet tube, and the welding of filter chamber inner wall has the manger plate slope, and the manger plate slope is located the inlet tube below, and the filter chamber is close to manger plate slope one side inner wall welding and has the backup pad, and backup pad outer wall sliding connection has the collection net, and the filter chamber is close to manger plate slope one side inner wall welding and has electric telescopic handle. The utility model discloses in, collect the solid impurity of net in with the waste water and collect, the stripper plate extrudees collecting the impurity on the net, gets rid of remaining moisture wherein, reduces and collects net clearance frequency, and remaining impurity adsorbs in the air supporting cavity gassing is with the waste water, makes impurity float on the surface of water, and hydraulic cylinder will collect the dirty net and pull up, and the impurity of filtering surface of water avoids impurity to remain and produces the influence to waste water treatment.

Description

Pretreatment device for wastewater treatment

Technical Field

The utility model relates to a waste water treatment technical field especially relates to a preprocessing device for waste water treatment.

Background

The waste water is a general term of water and runoff rainwater drained in the process of activities of residents. The method comprises the steps of domestic sewage, industrial wastewater and other useless water such as primary rain water flowing into a drainage pipe canal, and generally refers to water which can not be recycled after being treated by a certain technology or can not reach a certain standard after being purified by primary pollution. Pollutants with different sizes and different properties exist in various types of wastewater, and in order to achieve a good treatment effect on the wastewater, the wastewater is generally pretreated firstly. The waste water pretreatment is a pretreatment facility which is set according to the limit requirement of a treatment process on water quality before the waste water is treated by a traditional precipitation method, a biological method and the like, and is the throat for waste water treatment.

Chinese patent application No. 201922206764.7 proposes a "pretreatment apparatus for wastewater treatment" which is designed to remove a part of impurities in wastewater by introducing the wastewater into a wastewater treatment tank, closing a wastewater inlet at intervals, intercepting garbage impurities in the wastewater by a first mesh plate and a filter screen, and allowing the wastewater to flow into a purification chamber, but the pretreatment effect is not good in consideration of only removing a part of impurities in the wastewater by one-side filtration, and a large amount of impurities remain in the wastewater, thereby affecting the subsequent treatment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a pretreatment device for wastewater treatment.

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

a pretreatment device for wastewater treatment comprises a box body, wherein two partition plates with the same size are welded on the inner wall of the box body, the interior of the box body is sequentially divided into a filter cavity, an air flotation cavity and a purification cavity by the partition plates, a water inlet pipe is arranged on the outer wall of one side, close to the filter cavity, of the box body, a water retaining slope is welded on the inner wall of the filter cavity, the water retaining slope is positioned below the water inlet pipe, a support plate is welded on the inner wall of one side, close to the water retaining slope, of the filter cavity, a collection net is connected on the outer wall of the support plate in a sliding mode, an electric telescopic rod is welded on the inner wall of one side, close to the water retaining slope, of the filter cavity, an extrusion plate is welded at the tail end of the electric telescopic rod, the extrusion plate is connected with the inner wall of the bottom of the water retaining slope in a sliding mode, a mounting groove is formed in the inner wall of one side, close to the air flotation cavity, a control rod is connected with a connecting block in a rotating mode, the connecting block is welded with the collection net, the outer wall of the top of the box body is connected with a servo motor through bolts, and the output shaft of the servo motor is connected with the control rod, the bottom of the inner wall of one side of the filter cavity, which is close to the air floating cavity, is provided with a groove, the inner wall of the groove is welded with a glass fiber net box, the inner wall of one side of the air floating cavity, which is close to the purification cavity, is provided with a filter tank, the inner wall of the top of the filter tank is hinged with a sewage collecting net, the sewage collecting net, which is close to one side of the purification cavity, is provided with a plant fiber net box welded with the inner wall of the filter tank, the top of the air floating cavity is welded with a hydraulic oil cylinder, the tail end of the hydraulic oil cylinder is welded with a connecting groove, the connecting groove is rotatably connected with a connecting rod through a pin shaft, the tail end of the connecting rod is welded with the sewage collecting net, the interior of the purification cavity is filled with active carbon, the inner wall of the purification cavity is slidably connected with a barrier net, the top of the box body is provided with a cleaning pipe which is introduced into the bottom of the purification cavity, the tail end of the air floating cavity is provided with water pumps, and the tail ends of the cleaning pipe are provided with high-pressure spray heads which are distributed equidistantly, the box is close to water inlet one side outer wall and is provided with the intake pipe that lets in the air supporting chamber, and the aspiration pump is installed to the intake pipe, and one-way admission valve is installed to the intake pipe.

Preferably, the filter chamber all is provided with the drain pipe with air supporting chamber bottom, and the control valve is installed to the drain pipe.

Preferably, the outer wall of the top of the box body is hinged with a cover plate at the corresponding position of the filter cavity, and the size of the cover plate is matched with that of the filter cavity.

Preferably, the servo motor is provided with a protective cover, the protective cover is welded with the outer wall of the top of the box body, and radiating holes distributed at equal intervals are formed in the outer wall of the protective cover.

Preferably, the box is close to servo motor one side outer wall and is installed the switch of reversing, and the switch of reversing is connected with servo motor through the wire.

Preferably, the outer wall of the box body is provided with an observation window, and the size of the observation window is matched with that of the outer wall of the box body.

Preferably, the thickness of the sewage collecting net is half of that of the partition plate, and the height of the sewage collecting net is the same as the length of the air flotation cavity.

The utility model has the advantages that:

1. in the utility model, wastewater enters the box body through the water inlet pipe, the collection net is used for filtering for the first time, solid impurities in the wastewater are collected, the electric telescopic rod drives the extrusion plate to advance to extrude the impurities on the collection net, residual water in the impurities is removed, the weight of the solid impurities is reduced, the burden of a servo motor is reduced, the amount of the solid wastes collected by the collection net is increased, the cleaning frequency of the collection net is reduced, and manpower and material resources are saved;

2. waste water filters the back once more through glass fiber net cage and gets into the air supporting chamber, the aspiration pump produces the bubble with air suction air supporting chamber, the bubble adsorbs remaining impurity in with the waste water, make impurity float on the surface of water, hydraulic cylinder starts after that, pull up the dirty net of collection, the impurity of filtering surface of water, the waste water of filtering impurity lets in the purification chamber after plant fiber net cage filters, discharge after purifying the chamber and purifying and adsorbing, compare in traditional device, effectively get rid of the solid impurity in the waste water, avoid impurity to remain and produce the influence to waste water treatment.

Drawings

FIG. 1 is a schematic view of a cross-sectional structure of a pretreatment device for wastewater treatment according to the present invention;

FIG. 2 is a schematic view of the working state of a sewage collecting net of the pretreatment device for wastewater treatment according to the present invention;

FIG. 3 is a schematic view of the structure of the extrusion plate of the pretreatment device for wastewater treatment according to the present invention.

In the figure: the device comprises a box body 1, a partition plate 2, a filter chamber 3, an air flotation chamber 4, a purification chamber 5, a water retaining slope 6, a supporting plate 7, a collecting net 8, an electric telescopic rod 9, an extrusion plate 10, a mounting groove 11, a control rod 12, a servo motor 13, a glass fiber net cage 14, a sewage collecting net 15, a plant fiber net cage 16, a hydraulic oil cylinder 17, a barrier net 18, a cleaning pipe 19, a water pump 20, a high-pressure spray nozzle 21 and a suction pump 22.

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.

Referring to fig. 1-3, a pretreatment device for wastewater treatment, comprising a box body 1, wherein two partition boards 2 with the same size are welded on the inner wall of the box body 1, the interior of the box body 1 is sequentially divided into a filter chamber 3, an air flotation chamber 4 and a purification chamber 5 by the partition boards 2, the outer wall of one side of the box body 1 close to the filter chamber 3 is provided with a water inlet pipe, the inner wall of the filter chamber 3 is welded with a water retaining slope 6, the water retaining slope 6 is positioned below the water inlet pipe, the inner wall of one side of the filter chamber 3 close to the water retaining slope 6 is welded with a support plate 7, the outer wall of the support plate 7 is connected with a collection net 8 in a sliding manner, the inner wall of one side of the filter chamber 3 close to the water retaining slope 6 is welded with an electric telescopic rod 9, the tail end of the electric telescopic rod 9 is welded with an extrusion plate 10, the extrusion plate 10 is connected with the inner wall at the bottom of the water retaining slope 6 in a sliding manner, the inner wall of one side of the filter chamber 3 close to the air flotation chamber 4 is provided with a mounting groove 11, and the inner wall of the mounting groove 11 is connected with a control rod 12, the outer wall of the control rod 12 is rotatably connected with a connecting block, the connecting block is welded with the collection net 8, the outer wall of the top of the box body 1 is connected with a servo motor 13 through a bolt, an output shaft of the servo motor 13 is connected with the control rod 12, the servo motor 13 is provided with a protective cover, the protective cover is welded with the outer wall of the top of the box body 1, heat dissipation holes distributed at equal intervals are formed in the outer wall of the protective cover, the collection net 8 is used for filtering for the first time, solid impurities in waste water are collected, the electric telescopic rod 9 drives the extrusion plate 10 to advance to extrude the impurities on the collection net 8, residual water in the impurities is removed, the weight of the solid impurities is reduced, the burden of the servo motor 13 is reduced, meanwhile, the amount of the collected solid waste water by the collection net 8 is increased, the cleaning frequency of the collection net 8 is reduced, manpower and material resources are saved, a reverse switch is installed on the outer wall of one side, close to the servo motor 13, and is connected with the servo motor 13 through a lead, the outer wall of the top of the box body 1 is hinged with a cover plate at a position corresponding to the filter cavity 3, the size of the cover plate is matched with that of the filter cavity 3, the bottom of the inner wall of one side of the filter cavity 3, which is close to the air flotation cavity 4, is provided with a groove, the inner wall of the groove is welded with a glass fiber net cage 14, the inner wall of one side of the air flotation cavity 4, which is close to the purification cavity 5, is provided with a filter tank, the inner wall of the top of the filter tank is hinged with a sewage collecting net 15, the sewage collecting net 15 is provided with a plant fiber net cage 16 welded with the inner wall of the filter tank at one side close to the purification cavity 5, the thickness of the sewage collecting net 15 is half of that of the partition plate 2, the height of the sewage collecting net 15 is the same as the length of the air flotation cavity 4, the top of the air flotation cavity 4 is welded with a hydraulic oil cylinder 17, the tail end of the hydraulic oil cylinder 17 is welded with a connecting groove, the connecting rod is rotatably connected with a pin shaft, the tail end of the connecting rod is welded with the sewage collecting net 15, an air pump 22 pumps air into the air flotation cavity 4 to generate bubbles, the bubbles adsorb impurities remained in the wastewater to enable the impurities to float on the water surface, then the hydraulic oil cylinder 17 is started to pull up the sewage collecting net 15 to filter the impurities on the water surface, the wastewater with the impurities filtered is filtered by the plant fiber net cage 16 and then is introduced into the purifying cavity 5, and is purified and adsorbed by the purifying cavity 5 and then is discharged, compared with the traditional device, the device effectively removes the solid impurities in the wastewater and avoids the impurities from influencing the wastewater treatment, the purifying cavity 5 is filled with active carbon, the inner wall of the purifying cavity 5 is connected with the barrier net 18 in a sliding way, the top of the box body 1 is provided with a cleaning pipe 19 which is introduced into the bottom of the purifying cavity 5, the tail end of the cleaning pipe 19 is introduced into the air floating cavity 4, the cleaning pipe 19 is provided with a water pump 20, the tail end of the cleaning pipe 19 is provided with high-pressure spray nozzles 21 which are distributed at equal intervals, after the wastewater treatment is finished, the water pump 20 extracts the wastewater treated in the purifying cavity 5 through the cleaning pipe 19, wash dirty net 15 of collection through the 21 blowout of high pressure nozzle, prevent that impurity from depending on the dirty net 15 surface of collection to lead to the dirty net 15 of collection to block up, box 1 is close to water inlet one side outer wall and is provided with the intake pipe that lets in air supporting chamber 4, and the intake pipe installs aspiration pump 22, and one-way admission valve is installed to the intake pipe, filter chamber 3 all is provided with the drain pipe with air supporting chamber 4 bottom, and the drain pipe installs the control valve, 1 outer wall of box is provided with the observation window, and observation window size and 1 outer wall size looks adaptation of box.

The working principle is as follows: when the utility model is in operation, wastewater enters the box body 1 through the water inlet pipe, the collection net 8 is filtered for the first time, solid impurities in the wastewater are collected, the electric telescopic rod 9 drives the extrusion plate 10 to advance to extrude impurities on the collection net 8, residual water in the wastewater is removed, the weight of the solid impurities is reduced, the load of the servo motor 13 is reduced, the amount of the solid impurities collected by the collection net 8 is increased, the cleaning frequency of the collection net 8 is reduced, manpower and material resources are saved, the wastewater enters the air floating cavity 4 after being filtered again through the glass fiber net cage 14, the air suction pump 22 sucks air into the air floating cavity 4 to generate air bubbles, the air bubbles adsorb the residual impurities in the wastewater, the impurities float on the water surface, then the hydraulic oil cylinder 17 is started, the sewage collection net 15 is pulled up, the impurities on the water surface are filtered, the wastewater with the impurities are filtered through the plant fiber net cage 16 and then is introduced into the purification cavity 5, discharge after purifying the absorption through purifying chamber 5, compare in traditional device, effectively get rid of the solid impurity in the waste water, avoid impurity to remain and produce the influence to waste water treatment, after waste water treatment accomplished, water pump 20 will purify the waste water after handling in the chamber 5 through cleaning tube 19 and take out, wash dirty net 15 of collection through the 21 blowout of high pressure nozzle, prevent that impurity from depending on dirty net 15 surfaces of collection and leading to the dirty net 15 of collection to block up.

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. A pretreatment device for wastewater treatment comprises a box body (1) and is characterized in that two partition plates (2) with the same size are welded on the inner wall of the box body (1), the interior of the box body (1) is sequentially divided into a filter cavity (3), an air flotation cavity (4) and a purification cavity (5) by the partition plates (2), a water inlet pipe is arranged on the outer wall of one side, close to the filter cavity (3), of the box body (1), a water retaining slope (6) is welded on the inner wall of the filter cavity (3), the water retaining slope (6) is located below the water inlet pipe, a support plate (7) is welded on the inner wall of one side, close to the water retaining slope (6), of the filter cavity (3), a collection net (8) is connected on the outer wall of the support plate (7) in a sliding mode, an electric telescopic rod (9) is welded on the inner wall of one side, close to the water retaining slope (6), and an extrusion plate (10) is welded at the tail end of the electric telescopic rod (9), the squeezing plate (10) is connected with the inner wall of the bottom of the water retaining slope (6) in a sliding manner, the inner wall of one side, close to the air floatation cavity (4), of the filter cavity (3) is provided with a mounting groove (11), the inner wall of the mounting groove (11) is connected with a control rod (12) in a rotating manner, the outer wall of the control rod (12) is connected with a connecting block in a rotating manner, the connecting block is welded with the collection net (8), the outer wall of the top of the box body (1) is connected with a servo motor (13) through bolts, the output shaft of the servo motor (13) is connected with the control rod (12), the bottom of the inner wall of one side, close to the air floatation cavity (4), of the filter cavity (3) is provided with a groove, the inner wall of the groove is welded with a glass fiber net box (14), the inner wall of one side, close to the purification cavity (5), of the air floatation cavity (4) is provided with a filter tank, the inner wall of the top of the filter tank is hinged with a dirt collection net (15), and one side, which is provided with a plant fiber net box (16) welded with the inner wall of the filter tank, the top of the air flotation cavity (4) is welded with a hydraulic oil cylinder (17), the tail end of the hydraulic oil cylinder (17) is welded with a connecting groove, the connecting groove is rotatably connected with a connecting rod through a pin shaft, the tail end of the connecting rod is welded with a sewage collecting net (15), the purifying cavity (5) is filled with active carbon, and the inner wall of the purification cavity (5) is connected with a barrier net (18) in a sliding way, the top of the box body (1) is provided with a cleaning pipe (19) which is communicated with the bottom of the purification cavity (5), the tail end of the cleaning pipe (19) is introduced into the air flotation cavity (4), the cleaning pipe (19) is provided with a water pump (20), and the tail end of the cleaning pipe (19) is provided with high-pressure spray heads (21) which are distributed at equal intervals, the box (1) is close to water inlet one side outer wall and is provided with the intake pipe that lets in air supporting chamber (4), and aspiration pump (22) are installed to the intake pipe, and one-way admission valve is installed to the intake pipe.

2. A pre-treatment device for wastewater treatment according to claim 1, wherein the filter chamber (3) and the air flotation chamber (4) are provided with drain pipes at the bottom, and the drain pipes are provided with control valves.

3. A pre-treatment device for wastewater treatment according to claim 1, characterized in that the outer wall of the top of the box body (1) is hinged with a cover plate at the corresponding position of the filter chamber (3), and the size of the cover plate is matched with the size of the filter chamber (3).

4. The pretreatment device for wastewater treatment according to claim 1, wherein the servo motor (13) is provided with a shield, the shield is welded to the outer wall of the top of the tank (1), and the outer wall of the shield is provided with heat dissipation holes distributed at equal intervals.

5. The pretreatment device for wastewater treatment according to claim 1, wherein a reverse switch is installed on the outer wall of the box body (1) near the servo motor (13), and the reverse switch is connected with the servo motor (13) through a wire.

6. A pre-treatment device for wastewater treatment according to claim 1, characterized in that the outer wall of the box body (1) is provided with an observation window, and the size of the observation window is matched with the size of the outer wall of the box body (1).

7. A pre-treatment device for wastewater treatment according to claim 1, characterized in that the thickness of the dirt collecting net (15) is half of the thickness of the partition plate (2), and the height of the dirt collecting net (15) is the same as the length of the air flotation chamber (4).