CN220504124U

CN220504124U - Pump station upright chain toothed harrow type trash remover

Info

Publication number: CN220504124U
Application number: CN202322031156.3U
Authority: CN
Inventors: 崔天怀; 王涛; 李媛媛; 周文棋; 惠晨辉
Original assignee: Shaanxi Water Group Environmental Technology Operation And Maintenance Co ltd
Current assignee: Shaanxi Water Group Environmental Technology Operation And Maintenance Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-20
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses an upright chain toothed harrow type trash remover for a pump station, which belongs to the technical field of sewage treatment and comprises a transmission shaft, chain wheels, chains, toothed harrows and the like. Compared with the prior art, the device can intercept garbage sundries and automatically and continuously clean the garbage sundries from the depth of 6 to 10 m under water to the ground on the premise of ensuring that the ground structure of a house of a pump station is unchanged and no holes are formed, and solves the technical problems that flexible garbage is easy to block a crushing type grid machine, a water blocking pump impeller is blocked, a water pump is damaged and the like.

Description

Pump station upright chain toothed harrow type trash remover

Technical Field

The utility model belongs to the technical field of sewage treatment, and particularly relates to a pump station upright chain toothed harrow type sewage disposal machine.

Background

Before a sewage treatment plant is not built in a certain pump station, the sewage treatment plant is a main drainage pump station for urban sewage and flood prevention rainwater, and 2 crushing type grid machines are arranged, so that garbage in the sewage can be directly discharged into Han river only by crushing. It does not matter whether the crushing type grille can crush garbage, how the crushing effect is, whether the operation is reliable or not, as long as the water pump impeller is not blocked by garbage sundries and the water pump can normally lift water.

In recent years, with the high importance of the central authorities on environmental protection, environmental protection supervision requires that the direct discharge of sewage be forbidden, and the sewage can be discharged after being effectively treated and conforming to the first grade A standard of pollutant discharge standards of urban sewage treatment plants (GB 18918). Therefore, after the sewage treatment plant is built, domestic garbage and solid impurities in the sewage are required to be intercepted and removed before the sewage enters the plant area, the particle diameter of the sewage garbage or the geometric dimension d of the solid impurities is less than 20 mm, the safe and normal operation of a drum type fine grid sewage cleaner in the sewage treatment plant area is mainly ensured except that the safe operation of a water pump is ensured, and the content SS of solid suspended matters in the sewage is required to be less than or equal to 200 mg/L and the particle diameter d of the garbage is required to be less than or equal to 20 mm.

With the improvement of technical requirements, the existing crushing type grille has the following problems:

1) The existing structure can only crush part of fragile garbage sundries, and has no way for flexible garbage sundries. The flexible garbage enters a sewage treatment plant along with a pipe network, so that the factory and the treatment load are large, and the treatment effect of equipment and facilities is affected.

2) The equipment is easy to be blocked and the operation is very abnormal. In rainy season, due to the increase of the water supply, the garbage sundries are increased, the components are complex, the crushing type grid machine is often blocked, and the flowing water is not smooth. The water flow together with the household garbage passes through the top of the crushing type grille machine and directly flows into the water inlet front pool of the water pump, and the phenomenon that sundry garbage blocks the water blocking pump impeller and damages the water pump often occurs.

3) The crushed garbage and sundries enter a pipe network along with water flow, so that the garbage cannot be removed. After the crushed fine garbage enters a sewage treatment plant, the coarse and fine gratings cannot intercept a direct biochemical pond, a large amount of inorganic matters enter, and when a large amount of inorganic particles exist in the mixed solution, the growth and development of microorganisms are affected, namely the processes of forming bacteria of flocs, forming bacteria of non-flocs and filiform bacteria are affected. Meanwhile, the concentration, the flow velocity gradient, the hydraulic shear force, the dissolved oxygen content and the like of the sludge are affected. When a large amount of inorganic particles exist in the mixed solution, the concentration of the sludge is increased, and in order to ensure that the sludge is in a suspended state, the aeration strength is increased, so that the particle size of the sludge flocs can be influenced to a certain extent.

How to effectively solve the problems becomes a technical problem in the technical field.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the upright chain toothed harrow type trash remover for the pump station, which can intercept trash and automatically and continuously clean the trash and sundries from 6 to 10 m depths to the ground on the premise of ensuring that the ground structure of a house of the pump station is unchanged and holes are not formed, and solves the technical problems that flexible trash is easy to block a crushing type grille machine, a water blocking pump impeller is blocked, a water pump is damaged and the like.

The utility model solves the problems by the following technical means:

the utility model provides a pump station upright chain tooth harrow formula trash remover which characterized in that, includes bearing frame, transmission shaft, sprocket, chain and tooth harrow, wherein: the bearing frame is arranged on the salvage well or the salvage groove, and two groups of rotating shaft sleeves are symmetrically arranged at the top of the bearing frame; the bottom of the salvaging well or the salvaging groove is provided with a trash rack and two other groups of rotating shaft sleeves; the two transmission shafts are respectively arranged in the rotating shaft sleeve at the top and the rotating shaft sleeve at the bottom; the two chain wheels are symmetrically sleeved on each transmission shaft; the chain is wound on the upper chain wheel and the lower chain wheel, and the chains are connected end to end; the toothed harrow is horizontally arranged on the two chains; the direction of the toothed harrow is opposite to the trash rack, and the toothed harrow moves around the chain wheel along with the chain to clean the trash at the bottom trash rack to the ground.

Preferably, the middle part of the chain wheel is concave to form a transmission ring groove, a plurality of limit tables are arranged in the transmission ring groove at equal intervals, limit grooves are formed in the middle part of each limit table, cambered surfaces are arranged on the upper side and the lower side of each limit table, and a limit cavity is formed between each adjacent cambered surface and the inner wall of the transmission ring groove.

Preferably, the chain comprises a plurality of staggered vertical rings and transverse rings, wherein the vertical rings and the transverse rings adopt elliptical ring chains or waist-shaped ring chains, and the adjacent vertical rings and the transverse rings are mutually perpendicular under the stress state, and the vertical rings and the transverse rings are mutually perpendicular under the stress state, wherein: the vertical ring and the limit groove are consistent in size, and the vertical ring can smoothly enter and be far away from the limit groove; the size of the transverse ring is consistent with that of the limiting cavity, and the transverse ring can smoothly enter and be far away from the limiting cavity.

Preferably, two screws are vertically fixed on the outer surface of the vertical ring, and an inner nut and an outer nut are sleeved on the screws.

Preferably, the inboard of tooth harrow is provided with the turn-ups of connecting perpendicular ring usefulness, and the outside of tooth harrow sets up the salvaging tooth of salvaging rubbish usefulness, wherein: the rake body of the toothed rake is symmetrically provided with a plurality of water leakage holes; two long strip holes are respectively formed in two sides of the flanging, and the long strip holes are limited by screws, inner nuts and outer nuts.

Preferably, the tail end of the transmission shaft is connected with the power device through a coupler and a speed reducer, and the speed reducer and the power device are fixed on a supporting tripod on one side of the bearing frame.

The upright chain toothed harrow type trash remover for the pump station has the following beneficial effects:

1) The device can intercept rubbish sundries and automatically and continuously clean the rubbish from the depth of 6 to 10 m under water to the ground on the premise of ensuring that the ground structure of a pump station house is unchanged and no holes are formed, and solves the technical problems that flexible rubbish is easy to block a crushing type grid machine, block a water blocking pump impeller, damage a water pump and the like.

2) The device adopts sprocket, chain transmission scheme, and the structure is reliable, simple installation, and the sprocket adopts structures such as transmission annular, spacing platform, spacing groove, ingenious utilization adjacent vertical ring and spacing chamber in the chain, realizes accurate synchronous drive through inside spacing platform and chain effect.

3) The tooth harrow in the device is provided with a plurality of water leakage holes, so that the self weight can be obviously reduced, and the resistance in water can be reduced. In addition, the tooth harrow and the vertical ring are connected in a novel screw, nut and upper and lower double-row strip hole scheme, and the tooth harrow has the characteristics of convenient disassembly and assembly and flexible position adjustment.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the load bearing frame structure of the present utility model;

FIG. 3 is a schematic view of the rake and vertical ring connection of the present utility model;

FIG. 4 is a schematic view of an elongated hole structure according to the present utility model;

FIG. 5 is a schematic view of the fishing tooth construction of the present utility model;

FIG. 6 is a schematic diagram of the sprocket construction of the present utility model;

FIG. 7 is a schematic diagram of a sprocket and connection mating of the present utility model.

The device comprises a 1-bearing frame, a 101-bearing, a 102-supporting tripod, a 2-transmission shaft, a 3-sprocket, a 301-transmission ring groove, a 302-limiting table, a 303-limiting groove, a 304-cambered surface, a 305-limiting cavity, a 4-chain, a 401-vertical ring, a 402-transverse ring, a 403-screw, a 404-inner nut, a 405-outer nut, a 5-toothed harrow, a 501-flanging, 502-salvaging teeth, a 503-water leakage hole, a 504-strip hole, a 6-coupling, a 7-speed reducer and an 8-power device.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 7, the upright chain toothed harrow type trash remover for the pump station comprises a bearing frame 1, a transmission shaft 2, a chain wheel 3, a chain 4 and a toothed harrow 5, wherein the bearing frame 1 is arranged on or above a salvage well or a salvage groove, the bottom of the salvage well or the salvage groove is provided with a trash rack, and specifically, the trash rack is fixed by a design flat bar iron (with the section of 4 multiplied by 40 mm2 and the grid spacing of 20 mm) of a negative two-layer of a normal overflow hydraulic building and a negative one-layer of a very overflow hydraulic building, and garbage is completely intercepted outside under the conditions of normal running water and storm flood, so that the trash can not enter a front pool of the pump station.

In the figure, two groups of rotating shaft sleeves 101 are symmetrically arranged at the top of the bearing frame 1; the bottom of the salvage well or salvage groove is provided with a trash rack and two other groups of rotating shaft sleeves 101; the two transmission shafts 2 are respectively arranged in the rotating shaft sleeve 101 at the top and the rotating shaft sleeve 101 at the bottom, the rotating shaft sleeve 101 at the top is fixed on the bearing frame 1, and the rotating shaft sleeve 101 at the bottom is fixed at the bottom of the salvage well or the salvage groove; the two chain wheels 3 are symmetrically sleeved on each transmission shaft 2; the chain 4 is wound on the upper chain wheel 3 and the lower chain wheel 3, and the chain 4 is connected end to end; the toothed harrow 5 is horizontally arranged on the two chains 4; the direction of the toothed harrow 5 is opposite to the trash rack, and the toothed harrow 5 moves around the chain wheel 3 along with the chain 4 so as to clean the trash at the bottom trash rack to the ground. Specifically, the toothed harrow 5 is fixedly connected to the chain, and when passing through the fixed point position, the toothed harrow can turn over 180 degrees along with the chain to realize automatic falling of garbage, and the toothed harrow 5 can automatically, continuously and reliably clear the garbage at the trash rack to the ground.

In the figure, the middle part of the chain wheel 3 is concave to form a transmission ring groove 301, a plurality of limiting tables 302 are equidistantly arranged in the transmission ring groove 301, limiting grooves 303 are formed in the middle part of the limiting tables 302, cambered surfaces 304 are arranged on the upper side and the lower side of the limiting tables 302, and a limiting cavity 305 is formed between the adjacent cambered surfaces 304 and the inner wall of the transmission ring groove 301.

It should be noted that, the chain 4 is composed of a plurality of staggered vertical rings 401 and transverse rings 402, the vertical rings 401 and the transverse rings 402 are elliptical ring chains or waist-shaped ring chains, the adjacent vertical rings 401 and transverse rings 402 are mutually perpendicular under the stress state, and inner grooves can be carved on the inner wall of the ring body to ensure the perpendicular relationship when the chain is specifically applied, wherein: the vertical ring 401 and the limit groove 303 have the same size, and the vertical ring 401 can smoothly enter and be far away from the limit groove 303; the cross ring 402 is of uniform size with the spacing cavity 305, and the cross ring 402 can smoothly enter and leave the spacing cavity 305.

When in actual work, the device adopts a chain wheel and chain transmission scheme, has reliable structure and simple and convenient installation, and the chain wheel adopts the structures of a transmission ring groove, a limiting table, a limiting groove and the like, thereby skillfully utilizing the adjacent vertical rings and the limiting cavity in the chain and realizing accurate synchronous transmission through the interaction of the internal limiting table and the chain.

In the figure, two screws 403 are vertically fixed on the outer surface of the vertical ring 401, an inner nut 404 and an outer nut 405 are sleeved on the screws 403, a flanging 501 for connecting the vertical ring 401 is arranged on the inner side of the toothed harrow 5, and salvaging teeth 502 for salvaging garbage are arranged on the outer side of the toothed harrow 5, wherein: the rake body of the toothed rake 5 is symmetrically provided with a plurality of water leakage holes 503; two long holes 504 are respectively arranged on two sides of the turnup 501, and the long holes 504 are limited by the screws 403, the inner nuts 404 and the outer nuts 405.

When in actual work, the tooth harrow in the device is provided with a plurality of water leakage holes, so that the self weight can be obviously reduced, and the resistance in water can be reduced. In addition, the tooth harrow and the vertical ring are connected in a novel screw, nut and upper and lower double-row strip hole scheme, and the tooth harrow has the characteristics of convenient disassembly and assembly and flexible position adjustment.

In this embodiment, the end of the transmission shaft 2 is connected with the power device 8 through the coupling 6 and the speed reducer 7, and the speed reducer 7 and the power device 8 are fixed on the supporting tripod 102 on one side of the bearing frame 1. Specifically, the vertical chain toothed harrow type trash remover is characterized in that a motor is operated by electric control to drive a speed reducer, the rotating speed of the motor is reduced to 20 revolutions per minute from 1450 revolutions per minute, then the motor is linked with a ground sprocket and an underwater bottom sprocket (the diameter of the sprocket is 200 mm), the vertical conveying distance is 7.78m,3 toothed harrows (each with the width of 0.13m and the length of 1.2 m) are fixed on a chain, and the toothed harrow is forcedly cleaned by the back and forth rotation of the chain.

The vertical chain toothed harrow type trash remover can be widely applied to water channels with limited terrains of installation shaping inclined trash removers such as sewage treatment plants, living water supply plants, hydropower stations, pump stations and the like.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a pump station upright chain tooth harrow formula trash remover, its characterized in that includes bearing frame (1), transmission shaft (2), sprocket (3), chain (4) and tooth harrow (5), wherein:

the bearing frame (1) is arranged on the salvage well or the salvage groove, and two groups of rotating shaft sleeves (101) are symmetrically arranged at the top of the bearing frame (1);

the bottom of the salvaging well or the salvaging groove is provided with a trash rack and two other groups of rotating shaft sleeves (101);

the two transmission shafts (2) are respectively arranged in the rotating shaft sleeve (101) at the top and the rotating shaft sleeve (101) at the bottom;

the two chain wheels (3) are symmetrically sleeved on each transmission shaft (2);

the chain (4) is wound on the upper chain wheel (3) and the lower chain wheel (3), and the chains (4) are connected end to end;

the toothed harrow (5) is horizontally arranged on the two chains (4);

the direction of the toothed harrow (5) is opposite to the trash rack, and the toothed harrow (5) moves around the chain wheel (3) along with the chain (4) so as to clean the trash at the bottom trash rack to the ground.

2. The vertical chain toothed harrow type trash remover for pump stations according to claim 1, wherein the middle of the chain wheel (3) is concave to form a transmission ring groove (301), a plurality of limiting tables (302) are equidistantly arranged in the transmission ring groove (301), limiting grooves (303) are formed in the middle of the limiting tables (302), cambered surfaces (304) are arranged on the upper side and the lower side of the limiting tables (302), and a limiting cavity (305) is formed between each adjacent cambered surface (304) and the inner wall of the transmission ring groove (301).

3. The vertical chain toothed harrow type trash remover for pump stations according to claim 2, wherein the chain (4) is composed of a plurality of vertical rings (401) and transverse rings (402) which are connected in a staggered manner, the vertical rings (401) and the transverse rings (402) are elliptical ring chains or waist-shaped ring chains, and the adjacent vertical rings (401) and the transverse rings (402) are mutually perpendicular under the stress state, wherein:

the vertical ring (401) and the limit groove (303) are identical in size, and the vertical ring (401) can smoothly enter and be far away from the limit groove (303);

the size of the cross ring (402) is consistent with that of the limiting cavity (305), and the cross ring (402) can smoothly enter and be far away from the limiting cavity (305).

4. A pump station upright chain toothed harrow type trash remover according to claim 3, characterized in that two screws (403) are vertically fixed on the outer surface of the upright ring (401), and an inner nut (404) and an outer nut (405) are sleeved on the screws (403).

5. The upright chain tooth rake type trash remover for pump stations according to claim 4, characterized in that a flanging (501) for connecting a vertical ring (401) is arranged on the inner side of the tooth rake (5), and salvaging teeth (502) for salvaging trash are arranged on the outer side of the tooth rake (5), wherein:

the rake body of the toothed rake (5) is symmetrically provided with a plurality of water leakage holes (503);

two strip holes (504) are respectively formed in two sides of the flanging (501), and the strip holes (504) are limited by screws (403), inner nuts (404) and outer nuts (405).

6. The vertical chain toothed harrow type trash remover for pump stations according to claim 5 is characterized in that the tail end of the transmission shaft (2) is connected with a power device (8) through a coupler (6) and a speed reducer (7), and the speed reducer (7) and the power device (8) are fixed on a supporting tripod (102) on one side of a bearing frame (1).