CN217794854U

CN217794854U - Separation type hospital domestic sewage pretreatment device

Info

Publication number: CN217794854U
Application number: CN202221810230.0U
Authority: CN
Inventors: 庞建民; 刘子维; 贾伟; 王辰; 李峰
Original assignee: FIRST HOSPITAL OF HEBEI MEDICAL UNIVERSITY
Current assignee: FIRST HOSPITAL OF HEBEI MEDICAL UNIVERSITY
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-15
Anticipated expiration: 2032-07-13

Abstract

The utility model provides a separation type pretreatment device for hospital domestic sewage, which comprises a pressing and cutting mechanism, a scattering mechanism and a separating mechanism which are connected in sequence; the press-cutting mechanism comprises a press-cutting box, a first press-cutting component and a second press-cutting component, wherein the first press-cutting component and the second press-cutting component are arranged side by side along the flowing direction of sewage; the scattering mechanism comprises a scattering tank arranged below the pressing and cutting box; the separation mechanism comprises a separation box, a first filter plate, a second filter plate and a slag storage box, wherein the first filter plate is obliquely fixed on the inner wall of the separation box, the high end of the first filter plate is arranged below the water inlet, the bottom end of the first filter plate extends along the length direction of the separation box and forms a material passing gap with the separation box, the second filter plate is horizontally arranged below the first filter plate, and one end, close to the material passing gap, of the second filter plate is communicated with the slag storage box; and a slag pushing assembly is also arranged in the separation box. The utility model discloses different characteristics according to soft solid-state debris, stereoplasm solid-state debris are respectively to handling, ensure domestic sewage's long-term smooth and easy emission.

Description

Separation type hospital domestic sewage pretreatment device

Technical Field

The utility model relates to a sewage treatment technical field, concretely relates to separation type hospital domestic sewage pretreatment device.

Background

Domestic sewage in hospital outpatient buildings and sickrooms of all floors is collected by pipelines and flows into a sewage lifting well under the medical ward buildings, and then is lifted to a hospital drainage pipe network by a sewage pump and sent to a sewage treatment station for treatment. However, the domestic sewage is often mixed with solid wastes which are large in volume and cannot be dissolved, such as sanitary napkins, plastic bags, hard chopsticks, instant noodle boxes and the like, besides conventional food residues, feces, sewage and the like, and the solid wastes are easy to block a sewage pump, so that sewage overflows, foul smell is generated, air cleanness is affected, visual effects are affected, good sanitation conditions of hospitals are not kept, and development of intelligent hospitals is not facilitated.

In order to solve the problem, hospitals try to add a filter box on a pipeline at the front end of a sewage pump, and a flat filter screen is arranged in the filter box and used for filtering impurities, but the solid impurities are easy to block after being accumulated on the flat filter screen, so that the flow resistance of sewage is increased, and the normal discharge of the sewage is influenced; moreover, the sundries accumulated on the flat filter screen often contain solid garbage and excrement, and the sundries are difficult to find out to be handled by a unit, so that the problem which is difficult to solve by the environmental protection department of hospitals is formed.

Therefore, how to ensure the smooth discharge of the domestic sewage in hospitals becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a separation type pretreatment device for hospital domestic sewage, which separates and removes the impurities which are not easily dissolved and decomposed in the domestic sewage.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a separation type pretreatment device for hospital domestic sewage comprises a pressing and cutting mechanism, a scattering mechanism and a separation mechanism which are sequentially connected; the press-cutting mechanism comprises a press-cutting box, a first press-cutting component and a second press-cutting component, wherein the first press-cutting component and the second press-cutting component are used for extruding soft solid sundries in domestic sewage; the scattering mechanism comprises a scattering tank arranged below the pressing and cutting box, a water inlet pipe is arranged at the top of the scattering tank, a water outlet is arranged at the upper part of the scattering tank, and a stirring paddle is arranged in the scattering tank; the separation mechanism comprises a separation box, a first filter plate, a second filter plate and a slag storage box, wherein a water inlet is formed in the top of the separation box, a water outlet is formed in the bottom of the separation box, the first filter plate is obliquely fixed on the inner wall of the separation box, the high end of the first filter plate is arranged below the water inlet, the bottom end of the first filter plate extends along the length direction of the separation box and forms a material passing gap with the separation box, the second filter plate is horizontally arranged below the first filter plate, and one end, close to the material passing gap, of the second filter plate is communicated with the slag storage box; the first filter plate and the second filter plate are both grating plates; and a slag pushing assembly used for pushing hard solid sundries into the slag storage box is further arranged in the separation box.

The utility model discloses a further improvement lies in: the first press-cutting assembly comprises a first press-cutting plate, and the first press-cutting plate is in transmission connection with a first press-cutting cylinder positioned at the top of the press-cutting box through a first transmission rod; the second pressing and cutting assembly comprises a second pressing and cutting plate, and the second pressing and cutting plate is in transmission connection with a second pressing and cutting cylinder located at the top of the pressing and cutting box through a second transmission rod.

The utility model discloses a further improvement lies in: the first pressure cutting plate is a grid pressing plate, the plate bottom of the grid pressing plate is in a blade shape, and the second pressure cutting plate is a hard rubber pressing plate.

The utility model discloses a further improvement lies in: the stirring blade of the stirring paddle of the scattering tank is a double-layer push type blade.

The utility model discloses a further improvement lies in: the included angle between the first filter plate and the horizontal direction is 12-30 degrees.

The utility model discloses a further improvement lies in: the bottom of the slag storage box is of a screen structure, and a guide pipe communicated with a drain pipe is arranged below the slag storage box.

The utility model discloses a further improvement lies in: the slag pushing assembly comprises a pushing plate with the bottom abutted to the upper end face of the second filter plate, the rear end of the pushing plate is connected with a pushing rod, and the pushing rod penetrates through the side wall of the separation box and then is connected with a slag pushing cylinder.

Due to the adoption of the technical scheme, the utility model discloses the technological progress who gains is:

the utility model provides a separation type hospital domestic sewage pretreatment device, through pressing cutting mechanism and dispersion mechanism with the soft solid-state impurity (food waste, fruit vegetables, excrement and urine etc.) in the domestic sewage extrude shredding and dispersion, make its furthest dispersion in liquid sewage, separate out stereoplasm solid-state debris through separating mechanism, push the storage of storage residue case, liquid sewage is mingled with the tiny particle, the soft solid-state impurity of high dispersion is discharged through the drain pipe, unblock sewage pump, and the preliminary treatment degree of difficulty at follow-up sewage treatment station has been reduced, can make the domestic sewage pipe network of hospital keep smoothly discharging for a long time.

The utility model discloses according to the different characteristics of soft solid-state debris, the solid-state debris of stereoplasm, take the method of dispersion soft solid-state debris, the solid-state debris of separation stereoplasm to carry out respectively to handling, soft solid-state debris get into the sewage treatment station along with sewage and handle, and the solid-state debris of stereoplasm separation back is directly sent useless solid processing unit and is carried out further processing, has thoroughly solved the difficult problem of handling of hospital domestic sewage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention, in which arrows indicate the flowing direction of domestic sewage;

in the figure, 1, a press-cutting box, 2, a first press-cutting plate, 3, a first transmission rod, 4, a first press-cutting cylinder, 5, a second press-cutting plate, 6, a second transmission rod, 7, a second press-cutting cylinder, 8, a scattering tank, 9, a water inlet pipe, 10, a stirring paddle, 11, a separation box, 12, a first filter plate, 13, a second filter plate, 14, a slag storage box, 15, a drain pipe, 16, a push plate, 17, a push rod, 18, a slag pushing cylinder, 19, a stirring motor, 20, a flow guide pipe, 21 and a material passing gap.

Detailed Description

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

A separation type pretreatment device for hospital domestic sewage is shown in figure 1 and comprises a pressing and cutting mechanism, a scattering mechanism and a separation mechanism which are sequentially connected. The pressing and cutting mechanism is used for further pressing and cutting soft solid impurities in the domestic sewage of the hospital and crushing the soft solid impurities into mud or smaller particles; the scattering mechanism is used for further scattering mud-shaped or smaller granular soft solid impurities to ensure that the mud-shaped or smaller granular soft solid impurities are fully fused with the liquid sewage as far as possible; the separating mechanism is used for separating hard solid sundries and liquid sewage in the domestic sewage of the hospital, the hard solid sundries enter the sundries storage tank to be stored, and the liquid sewage and the soft solid sundries are discharged by the water discharge pipe 15.

The press-cutting mechanism comprises a press-cutting box 1, a first press-cutting assembly and a second press-cutting assembly, a water inlet is formed in one side of the bottom of the press-cutting box 1, a water outlet is correspondingly formed in the other side of the bottom of the press-cutting box 1, the water inlet is connected with an output pipeline of the sewage lifting well, and the water outlet is communicated with the press-cutting mechanism. The first press-cutting assembly and the second press-cutting assembly are arranged side by side along the length direction of the press-cutting box 1, the first press-cutting assembly is arranged at the water inlet end, and the second press-cutting assembly is arranged at the water outlet end. The first press-cutting assembly comprises a first press-cutting plate 2, and the first press-cutting plate 2 is in transmission connection with a first press-cutting cylinder 4 positioned at the top of the press-cutting box 1 through a first transmission rod 3; the second press-cutting assembly comprises a second press-cutting plate 5, and the second press-cutting plate 5 is in transmission connection with a second press-cutting cylinder 7 positioned at the top of the press-cutting box 1 through a second transmission rod 6; the first pressing and cutting cylinder 4 and the second pressing and cutting cylinder 7 do work to drive the first pressing and cutting plate 2 and the second pressing and cutting plate 5 to reciprocate up and down, so that the solid sundries flowing through the bottom of the pressing and cutting box 1 are pressed, cut and extruded to deform and shrink.

The first pressing and cutting plate 2 is a grid pressing plate, the bottom of the grid pressing plate is in a blade shape, and hard soft solid sundries can be cut into sections; the second pressing and cutting plate 5 is a solid hard rubber pressing plate, and soft solid impurities are pressed into mud through downward pressure. The hard solid impurities may be broken slightly under the action of the first press cutting plate 2 and the second press cutting plate 5, but the hard solid impurities cannot be cut and still remain solid.

The scattering mechanism comprises a scattering tank 8 arranged below the crush-cutting box 1, a water inlet pipe 9 is arranged at the top of the scattering tank 8, the top of the water inlet pipe 9 is communicated with a water outlet of the crush-cutting box 1, and the bottom of the water inlet pipe 9 is inserted into the middle of the scattering tank 8. The vertical stirring paddle is arranged inside the scattering tank 8, the stirring blade of the stirring paddle 10 is a double-layer push type blade, the stirring paddle 10 rotates under the driving of the stirring motor 19 to form a vortex, and soft solid impurities in the sewage are further scattered. The upper part of the scattering tank 8 is provided with a water outlet, and sewage scattered by stirring overflows to the separation mechanism through the water outlet.

Preferably, the bottom of the break-up tank 8 is also provided with an access hole.

The separating mechanism comprises a separating box 11, a first filter plate 12, a second filter plate 13, a slag pushing assembly and a slag storage box 14. A water inlet is formed in one end of the top of the separation box 11 and communicated with a water outlet of the scattering tank 8, a water outlet is formed in the bottom of the separation box 11 and communicated with a water drainage pipe 15, and a sewage pump is mounted on the downstream of the water drainage pipe 15. A first filter plate 12 is arranged below the water inlet; the first filter plate 12 is inclined, the high end of the first filter plate is arranged below the water inlet, the bottom end of the first filter plate extends along the length direction of the separation box 11 and forms a material passing gap 21 with a certain width with the separation box 11, the second filter plate 13 is horizontally arranged below the first filter plate 12, one end of the second filter plate 13 close to the material passing gap 21 is communicated with the slag storage box 14, and the slag storage box 14 is provided with a slag outlet door; the first filter plate 12 and the second filter plate 13 are all grid plates. After entering from the water inlet, sewage slowly inclines downwards along the first filter plate 12 under the action of gravity, most of liquid sewage and dispersed soft solid impurities leak down through the grating and fall into the bottom of the separation box 11 after being further filtered by the second filter plate 13, and hard solid impurities stay on the surface of the first filter plate 12 due to the volume of the hard solid impurities and fall onto the second filter plate 13 below under the condition that the sewage is continuously flushed and downwards.

Preferably, the included angle between the first filter plate 12 and the horizontal direction is 12-30 degrees, and the gentle slope can increase the staying and filtering time of the sewage on the first filter plate 12.

Preferably, the part of the second filter plate 13 corresponding to the material passing gap 21 is a sieve plate, and the sieve pore size of the sieve plate is smaller than the pore size of the grid plate.

Preferably, the bottom of the slag storage tank 14 is of a screen structure, and a guide pipe 20 communicated with the drain pipe 15 is further arranged below the slag storage tank 14.

The slag pushing assembly comprises a push plate 16 which is vertically arranged, the width of the push plate 16 is consistent with that of the second filter plate 13, and the bottom of the push plate 16 is abutted to the upper end face of the second filter plate 13. The rear end of the push plate 16 is connected with a push rod 17, and the push rod 17 penetrates through the side wall of the separation box 11 and then is connected with a slag pushing cylinder 18; the push rod 17 is a multi-stage telescopic push rod 17. When the slag pushing cylinder 18 works, the push rod 17 drives the push plate 16 to push out, and hard solid impurities on the second filter plate 13 are pushed into the slag storage tank 14.

The opening and closing of the first press-cutting cylinder 4, the second press-cutting cylinder 7, the stirring motor 19 and the slag pushing cylinder 18 can be controlled manually or automatically or in other control modes as long as the starting or stopping can be realized. Generally, the first pressure cutting cylinder 4, the second pressure cutting cylinder 7 and the stirring motor 19 are continuously started to operate, and the slag pushing cylinder 18 is intermittently started; a window can be arranged on the separation box 11 corresponding to the material passing gap 21, and when more impurities are manually observed to be accumulated on the second filter plate 13, the slag pushing cylinder 18 can be manually opened.

The utility model discloses a working process does:

after the domestic sewage of the hospital is converged into the sewage extraction well, the domestic sewage enters the pretreatment device for separation and crushing, is lifted to a hospital drainage pipe network through a sewage pump, and is sent into a sewage treatment station for treatment.

Domestic sewage enters the pressure cutting box under the driving of the sewage pump, the first pressure cutting cylinder and the second pressure cutting cylinder continuously do work to drive the first pressure cutting plate and the second pressure cutting plate to reciprocate up and down, and solid impurities flowing through the bottom of the pressure cutting box are respectively subjected to pressure cutting and extrusion, so that soft solid impurities in the soft solid impurities are deformed and crushed. The sewage flows out of the pressing and cutting box and then flows into the scattering tank, under the stirring action of the double-layer propelling type stirring blades, the originally agglomerated soft solid impurities are further scattered, and the scattered sewage enters the separation box. The sewage flows downwards along the first filter plate slowly in an inclined way under the action of gravity, most of liquid sewage and dispersed soft solid sundries leak down through the grating, and the liquid sewage and the dispersed soft solid sundries further filter through the second filter plate and then fall into the bottom of the separation box to be discharged through a drain pipe; hard solid sundries stay on the surface of the first filter plate due to the volume of the hard solid sundries, fall down onto the second filter plate below under the continuous flushing of sewage, and are pushed into the slag storage box to be stored through the intermittent work of the slag pushing mechanism.

The water content in the hard solid sundries is filtered by a screen at the bottom of the slag storage box and then is sent into a drain pipe through a guide pipe.

The above is only the preferred embodiment of the present invention, and all the equivalent changes and modifications made according to the claims of the present invention should be covered by the present invention.

Claims

1. The utility model provides a separation type hospital domestic sewage pretreatment device which characterized in that: comprises a pressing and cutting mechanism, a scattering mechanism and a separating mechanism which are connected in sequence; the press-cutting mechanism comprises a press-cutting box (1), a first press-cutting component and a second press-cutting component, wherein the first press-cutting component and the second press-cutting component are used for extruding soft solid sundries in domestic sewage; the scattering mechanism comprises a scattering tank (8) arranged below the pressing and cutting box (1), a water inlet pipe (9) is arranged at the top of the scattering tank (8), a water outlet is arranged at the upper part of the scattering tank (8), and a stirring paddle (10) is arranged in the scattering tank (8); the separation mechanism comprises a separation box (11), a first filter plate (12), a second filter plate (13) and a slag storage box (14), wherein a water inlet is formed in the top of the separation box (11), a water outlet is formed in the bottom of the separation box (11), the first filter plate (12) is fixed on the inner wall of the separation box (11) in an inclined manner, the high end of the first filter plate (12) is arranged below the water inlet, the bottom end of the first filter plate (12) extends along the length direction of the separation box (11) and forms a material passing gap (21) with the separation box (11), the second filter plate (13) is horizontally arranged below the first filter plate (12), and the slag storage box (14) is communicated with one end, close to the material passing gap (21), of the second filter plate (13); the first filter plate (12) and the second filter plate (13) are both grating plates; and a slag pushing assembly for pushing hard solid impurities into the slag storage tank (14) is further arranged in the separation tank (11).

2. The separated hospital domestic sewage pretreatment device according to claim 1, wherein: the first press-cutting assembly comprises a first press-cutting plate (2), and the first press-cutting plate (2) is in transmission connection with a first press-cutting cylinder (4) positioned at the top of the press-cutting box (1) through a first transmission rod (3); the second pressing and cutting assembly comprises a second pressing and cutting plate (5), and the second pressing and cutting plate (5) is in transmission connection with a second pressing and cutting cylinder (7) located at the top of the pressing and cutting box (1) through a second transmission rod (6).

3. The separated hospital domestic sewage pretreatment device according to claim 2, wherein: the first pressure cutting plate (2) is a grid pressure plate, the bottom of the grid pressure plate is in a blade shape, and the second pressure cutting plate (5) is a hard rubber pressure plate.

4. The separation type hospital domestic sewage pretreatment device according to claim 1, characterized in that: the stirring blades of the stirring paddle (10) are double-layer push type blades; the water inlet pipe (9) is inserted into the middle part of the scattering tank (8).

5. The separated hospital domestic sewage pretreatment device according to claim 1, wherein: the included angle between the first filter plate (12) and the horizontal direction is 12-30 degrees.

6. The separated hospital domestic sewage pretreatment device according to claim 1, wherein: the bottom of the slag storage tank (14) is of a screen structure, and a guide pipe (20) communicated with the drain pipe (15) is further arranged below the slag storage tank (14).

7. The separated hospital domestic sewage pretreatment device according to claim 1, wherein: the slag pushing assembly comprises a pushing plate (16) with the bottom abutted to the upper end face of the second filter plate (13), and the pushing plate (16) is in transmission connection with a slag pushing cylinder (18) through a pushing rod (17) penetrating through the side wall of the separation box (11).