CN220879220U - Horizontal decanter centrifuge with flocculant filling device - Google Patents

Abstract

The utility model provides a horizontal decanter centrifuge with a flocculant filling device, which comprises a shell; the horizontal spiral centrifugal cavity is arranged in the shell; the spiral conveying pipeline is arranged in the horizontal spiral centrifugal cavity, and the outer side of the wall surface of the spiral conveying pipeline is provided with rotating blades; the filling device comprises a stirring box, a water tank and a flocculating agent tank, wherein the water tank and the flocculating agent tank are connected with the stirring box; the spiral conveying pipeline is a hollow pipeline, and a feed inlet is formed in the side wall of the spiral conveying pipeline; the horizontal spiral centrifugal cavity body wall is provided with a wall opening corresponding to the circumference where the feeding hole is located, and the filling device is arranged outside the wall opening; the utility model improves the structure of the existing horizontal decanter centrifuge, so that the horizontal decanter centrifuge has the integrated flocculant filling effect, and the flocculant realizes automatic mixing and stirring, thereby ensuring that the added flocculant meets the requirement of use concentration and improving the separation efficiency while ensuring that the filling process is free and convenient.

Description

Horizontal decanter centrifuge with flocculant filling device

Technical Field

The utility model relates to the field of centrifuges, in particular to a horizontal decanter centrifuge with a flocculant filling device.

Background

The horizontal decanter centrifuge is high-efficiency centrifugal equipment for solid-liquid separation, can be used for the centrifugal treatment procedure of sludge generated in the industrial and civil sewage treatment process, and is widely used in the industrial field due to the characteristics of large treatment capacity, automatic operation, good dehydration effect and the like compared with a belt filter press.

The body of the horizontal decanter centrifuge is generally provided with a conical small end and a cylindrical large end, the feeding pipe penetrates through the small end cover and is communicated with the interior of the screw conveyor, and a feeding hole is formed in a feeding pipeline close to the small end, but suspended matters are often separated effectively when solid and liquid phases are separated, and a device for adding a flocculating agent is required to be newly added under part of conditions to flocculate before and after separation, so that the number and occupied area of equipment are increased, the separation time is prolonged, and the separation efficiency is reduced.

Disclosure of utility model

The utility model aims to provide a horizontal decanter centrifuge with a flocculant filling device, which realizes automatic mixing and stirring of flocculant through the design of the filling device, does not need extra equipment for adding flocculant, and is more convenient for a user to get hands in the use process.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A decanter centrifuge with a flocculant filling device comprising:

A housing;

The horizontal spiral centrifugal cavity is arranged in the shell;

The spiral conveying pipeline is arranged in the horizontal spiral centrifugal cavity, and the outer side of the wall surface of the spiral conveying pipeline is provided with rotating blades;

the filling device comprises a stirring box, a water tank and a flocculating agent tank, wherein the water tank and the flocculating agent tank are connected with the stirring box;

The spiral conveying pipeline is a hollow pipeline, and a feed inlet is formed in the side wall of the spiral conveying pipeline; the horizontal spiral centrifugal cavity body wall is provided with a wall opening corresponding to the circumference where the feeding hole is located, and the filling device is arranged outside the wall opening.

Optionally, the filling device is arranged on the upper side of the casing, and the outlet of the stirring box is in sealing connection with the casing.

Optionally, be equipped with on the casing with the opening of horizontal spiral shell centrifugal cavity wall face opening corresponds, two openings pass through into the medicine union coupling, advance the medicine union coupling to the export of stirring box, advance the medicine union with the junction of stirring box export installs the switch door that opens and shuts.

Optionally, a driving mechanism is arranged on the side surface of the stirring box to control the switch door.

Optionally, the water tank is connected with the stirring box through a water inlet pipe; the flocculant tank is arranged above the stirring box and conveys flocculant into the stirring box through a powder inlet pipe at the lower side of the flocculant tank.

Optionally, the water inlet pipe and the powder inlet pipe are both provided with flow control switches.

Optionally, the stirring box is the structure of upper portion rectangle lower part reverse trapezoidal, is equipped with rabbling mechanism on it, rabbling mechanism includes agitator motor, (mixing) shaft and stirring rake, wherein the stirring rake is located the axis body lower extreme of stirring shaft.

Optionally, the stirring rake includes the main oar of horizontal installation and is located a plurality of vice oar of installation down on the main oar, vice oar with the (mixing) shaft is the center, and from inside to outside length reduces in proper order, the length of stirring rake with the trapezoid structure that falls of stirring box suits.

Optionally, one end of the shell is provided with a light discharging channel, and the other end of the shell is provided with a heavy discharging channel; a light discharge port is arranged at one side of the large end of the horizontal spiral centrifugal cavity, and a heavy discharge port is arranged at one side of the small end; wherein, the light discharge port is communicated with the light discharge channel, and the heavy discharge port is communicated with the heavy discharge channel.

Optionally, a stirring rod is arranged on the wall surface of the spiral conveying pipeline at the side opposite to the feeding hole.

Compared with the prior art, the utility model has the beneficial effects that: through the brand-new flocculant filling device of design, make the horizontal spiral shell centrifuge of taking flocculant filling device can realize the filling of the flocculant that improves separation efficiency when realizing the solid-liquid separation of material, and can realize the automatic mixing stirring of flocculant through filling device, when making the filling process free convenient, also guaranteed that the flocculant of adding accords with the use concentration requirement, improved separation efficiency.

Drawings

In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional front view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a filling device according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an embodiment of the present utility model with a door opened;

FIG. 4 is a schematic cross-sectional view of a right side view of a mixing box according to an embodiment of the utility model.

Reference numerals: 1. a housing; 10. a light discharge channel; 11. a heavy discharge channel; 2. horizontal spiral centrifugal cavity; 20. a light discharge port; 21. a heavy discharge port; 22. stirring rod; 3. a screw conveying pipeline; 30. a feed inlet; 4. rotating the blades; 5. a filling device; 50. a water tank; 51. a flocculant tank; 52. a stirring box; 53. a water inlet pipe; 54. a powder inlet pipe; 55. a stirring mechanism; 551. a stirring motor; 552. a stirring shaft; 553. stirring paddles; 56. a driving mechanism; 6. a medicine inlet pipe; 7. and opening and closing the door.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "transverse", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the product of the present utility model is used, or those conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be 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.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

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

The embodiment of the utility model provides a horizontal decanter centrifuge with a flocculant filling device, which comprises:

a housing 1;

the horizontal spiral centrifugal cavity 2 is arranged in the shell 1;

The spiral conveying pipeline 3 is arranged in the horizontal spiral centrifugal cavity 2, and a rotary blade 4 is arranged on the outer side of the wall surface of the spiral conveying pipeline, so that the materials with separation and the flocculating agent can be fully and quickly mixed and accelerated to realize separation;

A filling device 5 including a stirring box 52 for mixing and stirring water and a flocculant, and a water tank 50 and a flocculant tank 51 connected to the stirring box 52;

The spiral conveying pipeline 3 is a hollow pipeline, a feed inlet 30 is arranged on the side wall of the spiral conveying pipeline, and materials can firstly pass through the hollow pipeline and then enter the horizontal spiral centrifugal cavity 2 through the feed inlet 30; the side wall of the horizontal spiral centrifugal cavity 2 is also provided with a wall opening corresponding to the circumferential surface where the feed inlet 30 is located, and the filling device 5 is arranged outside the wall opening.

Further, an opening corresponding to the opening of the wall surface of the horizontal spiral centrifugal cavity 2 is formed in the casing 1, the two openings are connected through a medicine feeding pipe 6, the medicine feeding pipe 6 is connected to the outlet of the stirring box 52, and a split switch door 7 is mounted at the joint of the medicine feeding pipe 6 and the outlet of the stirring box 52 and used for controlling filling of flocculant.

It should be noted that, the switch door 7 is a one-way valve, which can only be opened downwards, and cannot be turned upwards to a position exceeding the horizontal plane, so as to prevent the flocculant part with a regulated concentration from being blocked on the switch door 7, thereby reducing the flocculant utilization rate, and simultaneously enabling the flocculant to flow downwards in compliance with the opening direction of the switch door 7.

Further, in order to ensure the utilization rate of the flocculant, the filling device 5 is arranged on the upper side of the casing 1, the stirring box 52 is installed above the switch door 7, and the outlet of the stirring box 52 is in sealing connection with the casing 1, so that the flocculant with the adjusted concentration can completely fall into the horizontal spiral centrifugal cavity 2 through the medicine inlet pipe 6.

Specifically, the bottom of the medicine inlet pipe 6 is sleeved with an annular sleeve, the annular region is sleeved on the outer side of the casing 1, and the annular region is tightly attached to the casing 1 to keep sealing, so that materials in an opening of the casing 1 are prevented from overflowing from the side face of the annular sleeve.

Further, a driving mechanism 56 is arranged on the side face of the stirring box 52 to control the switch door 7, so that flexible and convenient flocculant injection is realized.

Further, the water tank 50 is connected with the stirring box 52 through a water inlet pipe 53; the flocculant tank 51 is disposed above the stirring box 52, and conveys flocculant into the stirring box 52 through a powder inlet pipe 54 at the lower side thereof.

Specifically, the flocculant tank 51 is disposed right above the stirring box 52, so that the powder flocculant in the flocculant tank 51 is ensured to do free-falling motion, and is easier to fall into the stirring box 52, and the condition that the flocculant is blocked in the powder inlet pipe 54 to cause waste is avoided.

In order to allow water in the water tank 50 to be more conveniently pumped out, a water pump is provided in the water tank 50 to prevent water from being unable to be put into the stirring box 52 when the water level in the water tank 50 is lower than the water inlet pipe 53.

Further, the water inlet pipe 53 and the powder inlet pipe 54 are respectively provided with a flow control switch, so that the water quantity and the flocculant powder quantity entering the stirring box 52 are respectively controlled.

Further, the stirring box 52 has an upper rectangular lower inverted trapezoid structure, so that the flocculant with the adjusted concentration can be completely collected at the switch door 7; the stirring box 52 is provided with a stirring mechanism 55, and the stirring mechanism 55 comprises a stirring motor 551, a stirring shaft 552 and a stirring paddle 553, wherein the stirring paddle 553 is positioned at the lower end of the shaft body of the stirring shaft 552.

Further, in order to enable the water and the flocculant powder in the stirring box 52 to be mixed rapidly and sufficiently, the stirring paddles 553 comprise a main paddle which is transversely installed and a plurality of auxiliary paddles which are located on the main paddle and are installed downwards, the auxiliary paddles take the stirring shaft 552 as a center, the lengths of the auxiliary paddles are sequentially reduced from inside to outside, and the lengths of the stirring paddles 553 are adapted to the inverted trapezoid structure of the stirring box 52.

Further, one end of the shell 1 is provided with a light discharging channel 10, and the other end is provided with a heavy discharging channel 11; a light discharge port 20 is arranged on one side of the large end of the horizontal spiral centrifugal cavity 2, and a heavy discharge port 21 is arranged on one side of the small end; wherein, the light discharging port 20 is communicated with the light discharging channel 10, and the light is discharged from the light discharging channel 10 after being discharged from the light discharging port 20; the heavy discharge port 21 is communicated with the heavy discharge channel 11, and the heavy is discharged from the light discharge channel 11 after being discharged from the heavy discharge port 21.

Further, a stirring rod 22 is arranged on the wall surface of the spiral conveying pipeline 3 opposite to the feeding hole 30, and is used for assisting the mixing of the flocculant and the separated materials.

When the utility model is required to be used, materials are input from the spiral conveying pipeline 3 and are conveyed into the horizontal spiral centrifugal cavity 2 through the feed inlet 30, the flow control switches on the water inlet pipe 53 and the powder inlet pipe 54 are turned on according to the requirement, the flow control switches are turned off after water and flocculating agent with required proportion enter the stirring box 52, the stirring motor 551 is turned on to drive the stirring shaft 552 to drive the stirring blade 553 to rotate, after the water and the flocculating agent are uniformly mixed, the stirring motor 551 is turned off, the driving mechanism 56 is turned on to control the opening and closing door 7 to be turned on, the mixed flocculating agent enters the horizontal spiral centrifugal cavity 2, the flocculating agent is fully mixed with the materials entering from the feed inlet 30 through the rotary blade 4 and the stirring rod 22, finally, the light material enters the light material outlet 10 to be discharged through the light material outlet 21, and the heavy material enters the heavy material outlet 11 to be discharged through the heavy material outlet 21, so that separation efficiency is improved is realized.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A decanter centrifuge with a flocculant filling device, comprising:

a housing (1);

the horizontal spiral centrifugal cavity (2) is arranged in the shell (1);

the spiral conveying pipeline (3) is arranged in the horizontal spiral centrifugal cavity (2), and a rotary blade (4) is arranged on the outer side of the wall surface of the spiral conveying pipeline;

The filling device (5) comprises a stirring box (52), a water tank (50) and a flocculating agent tank (51) which are connected with the stirring box (52);

Wherein the spiral conveying pipeline (3) is a hollow pipeline, and a feed inlet (30) is arranged on the side wall of the spiral conveying pipeline; the wall surface of the horizontal spiral centrifugal cavity (2) is provided with a wall surface opening corresponding to the circumferential surface where the feeding hole (30) is located, and the filling device (5) is arranged outside the wall surface opening.

2. The decanter centrifuge with flocculant filling device of claim 1, wherein: the filling device (5) is arranged on the upper side of the machine shell (1), and the outlet of the stirring box (52) is connected with the machine shell (1) in a sealing mode.

3. The decanter centrifuge with flocculant filling device of claim 2, wherein: the shell (1) is provided with an opening corresponding to the opening of the wall surface of the horizontal spiral centrifugal cavity (2), the two openings are connected through a medicine feeding pipe (6), the medicine feeding pipe (6) is connected to the outlet of the stirring box (52), and a switch door (7) which is opened and closed is arranged at the joint of the medicine feeding pipe (6) and the outlet of the stirring box (52).

4. A decanter centrifuge with flocculant filling device according to claim 3, wherein: the side of the stirring box (52) is provided with a driving mechanism (56) for controlling the opening and closing door (7).

5. A decanter centrifuge with flocculant filling device according to claim 3, wherein: the water tank (50) is connected with the stirring box (52) through a water inlet pipe (53); the flocculant tank (51) is arranged above the stirring box (52) and conveys flocculant into the stirring box (52) through a powder inlet pipe (54) at the lower side of the flocculant tank.

6. The decanter centrifuge with flocculant filling device of claim 5, wherein: flow control switches are arranged on the water inlet pipe (53) and the powder inlet pipe (54).

7. The decanter centrifuge with flocculant filling device of claim 6, wherein: the stirring box (52) is of an inverted trapezoid structure at the lower part of the upper part of the stirring box, a stirring mechanism (55) is arranged on the stirring box, the stirring mechanism (55) comprises a stirring motor (551), a stirring shaft (552) and stirring paddles (553), and the stirring paddles (553) are located at the lower end of a shaft body of the stirring shaft (552).

8. The decanter centrifuge with flocculant filling device of claim 7, wherein: the stirring paddle (553) comprises a main paddle and a plurality of auxiliary paddles, wherein the main paddle is transversely arranged, the auxiliary paddles are arranged on the main paddle in a downward manner, the auxiliary paddles take the stirring shaft (552) as a center, the length of the auxiliary paddles is sequentially reduced from inside to outside, and the length of the stirring paddle (553) is adaptive to the inverted trapezoid structure of the stirring box (52).

9. The decanter centrifuge with flocculant filling device of claim 1, wherein: one end of the shell (1) is provided with a light discharging channel (10), and the other end is provided with a heavy discharging channel (11); a light discharge port (20) is arranged at one side of the large end of the horizontal spiral centrifugal cavity (2), and a heavy discharge port (21) is arranged at one side of the small end; wherein the light discharging port (20) is communicated with the light discharging channel (10), and the heavy discharging port (21) is communicated with the heavy discharging channel (11).

10. The decanter centrifuge with flocculant filling device of claim 1, wherein: and a stirring rod (22) is arranged on one side of the wall surface of the spiral conveying pipeline (3) opposite to the feeding hole (30).